SECTION 230505 – HVAC BASIC MATERIALS PART … · wellspan ech health pavilion addition and renovation rfma 2014.13.01 hvac basic materials 230505 - 1 section 230505 – hvac basic

WELLSPAN ECH HEALTH PAVILION ADDITION AND RENOVATION RFMA 2014.13.01

HVAC BASIC MATERIALS 230505 - 1

SECTION 230505 – HVAC BASIC MATERIALS

PART 1 - GENERAL

1.1 WORK INCLUDED

A. The Work of this Section shall consist of the labor, materials and equipment required for the installation of basic materials and motors associated with HVAC systems.

1.2 SUBMITTALS

A. Submit for approval in accordance with specified submittal procedures:

1. Access Panels

2. Fire Stop Sealing System

3. Pipe Portals

4. Equipment Supports

5. Equipment Nameplates; including itemized listing of nameplate equipment designations

6. Pipe Rail System

7. Engineered Strut Support System; including structural calculations

8. Motors; submit with each piece of equipment

PART 2 - PRODUCTS

2.1 ACCESS PANELS

A. Access Panel Specification No. 1

1. Acceptable Manufacturer: Milcor Style AP for acoustical plaster, Style AT for acoustical tile, or Karp, Krieger, Bilco.

2. Type: Acoustical ceiling.

3. Construction: 16 gage galvanized steel frame, 18 gage galvanized steel panel. Recessed to accommodate acoustical ceiling tile. Continuous hinge, steel with stainless steel pin.

4. Closing Feature: Flush, screw driver operated lock with steel cam.

B. Access Panel Specification No. 2

1. Acceptable Manufacturer: Milcor Style DW, or Karp, Krieger, Bilco.

2. Type: Gypsum wallboard.

3. Construction: 16 gage steel frame, 14 gage steel panel.

4. Concealed spring hinges. Prime coat finish for field painting.



5. Closing Feature: Flush, screwdriver operated lock with steel cam.

C. Access Panel Specification No. 3

1. Acceptable Manufacturer: Milcor, or Karp.

2. Type: Fire rated.

3. Construction: 16 gage steel frame, 20 gage steel panel.

4. Continuous hinge with stainless steel pin. Automatic panel closer. Factory attached masonry anchors.

5. Rating: UL listed 1-1/2 hour (B label), temperature rise 30 minutes, 250 degrees F. maximum.

6. Closing Feature: Self-latching lock, direct action knurled knob, interior latch release mechanism.

2.2 FIRE STOP SEALING SYSTEM

A. Acceptable Manufacturer: Nelson Firestop Products CLK Silicone Sealant, or 3M Fire Protection Products, RectorSeal, Specified Technologies (STI), Tremco.

B. Materials: Single component, ready-to-use, water-resistant, flexible elastomeric silicone sealant. Non-sag/gunnable grade for penetrations in vertical surfaces, self-leveling grade for floor applications.

C. Compliance: Fire endurance tested per ASTM E-814 (UL 1479). In addition to compliance as a fire stop, the cured sealing system shall not permit smoke or water penetration.

2.3 PIPE PORTALS

A. Acceptable Manufacturer: Pate Style PCA, or Roof Products & Systems Corp.

B. Construction: 18 gage galvanized steel, unitized construction with integral base plate.

C. Standard Features

1. Built-in raised cant.

2. Wood nailer.

3. 3 lb. density insulation.

4. Acrylic clad ABS plastic cover, fastening screws, graduated step boots with stainless steel clamps.

2.4 EQUIPMENT SUPPORTS

A. Acceptable Manufacturer: Pate Style ES, or Roof Products & Systems Corp.

B. Construction: 18 gage galvanized steel with integral base plate, continuous welded corner seams, pressure treated wood nailer and internally reinforced.



2.5 EQUIPMENT NAMEPLATES

A. Laminated phenolic, two outer layers of white phenolic and an inner layer of black with engraving depth to the inner layer.

B. Nameplate and lettering suitably sized for their location, but not less than 1/4 inch high letters.

2.6 EQUIPMENT LOCATION LABELS

A. Equipment location labels shall be self-adhering, 3/4 inch diameter, gloss vinyl circles. Labels shall be placed on the T-bar of the adjoining ceiling tile to be removed for access to item. Color-coding of labels shall be as directed by Owner.

2.7 PIPE RAIL SYSTEM

A. Acceptable Manufacturer: Hollaender.

B. Construction: High tensile aluminum/magnesium alloy slip-on/bolt-on pipe fittings conforming to federal specification QQ-A-371F ASTM B275 or QQ-A-601F ASTM B26.

C. All fittings shall be securely fastened to the pipe with knurled cup-point set screws. Set screws meet these specifications:

1. Type FF-S-200, ANSI/ASME B18.3 - 1986 Type C counter-bored knurled cup-point specification.

2.8 ENGINEERED STRUT SUPPORT SYSTEM

A. Acceptable Manufacturer: Unistrut Corporation, or as approved.

B. General: Provide all engineering, material, fittings, anchors, and related accessories for installation of the engineered strut support system. Submit structural calculations with design criteria, selection of framing members, fittings, accessories, and shop/assembly drawings.

2.9 MOTORS

A. Motor Characteristics:

1. Duty: Continuous duty at ambient temperature of 40 degrees C and at an altitude of 3300 feet above sea level.

2. Capacity and Torque Characteristics: Sufficient to start, accelerate, and operate connected loads at designated speeds, at installed altitude and environment, with indicated operating sequence, and without exceeding nameplate ratings or considering service factor.Horsepower rating shall not be less than size indicated on Drawings.

B. Three Phase Motors:

1. Description: NEMA MG 1, Design B, medium induction motor.



2. Efficiency: Premium efficiency, as defined by NEMA MG 1.

3. Voltage: As indicated on Drawings.

4. Service Factor: 1.15.

5. Insulation: NEMA Class F.

6. Sound Power Levels: Conform to NEMA MG 1.

7. Bearings: Grease lubricated anti-friction ball bearings with housings equipped with plugged provision for re-lubrication, rated for minimum AFBMA 9, L-10 life of 200,000 hours.

8. Thermal Protection: Internal, automatically reset.

9. Motors Used with Variable Frequency Drives:a. Windings: Copper magnet wire with moisture-resistant varnish, designed and

tested to resist transient spikes, high frequencies, and short time rise pulses produced by pulse-width modulated inverters.

b. Premium-Efficient Motors: Class B temperature rise; Class F insulation.c. Inverter-Duty Motors: Class F temperature rise; Class H insulation.

C. Single Phase Motors:

1. Larger Than 1/20 HP: One of the following, to suit starting torque and requirements of specific motor applications:a. Permanent-split capacitor.b. Split phase.c. Capacitor start, inductor run.d. Capacitor start, capacitor run.

2. 1/20 HP and Smaller: Shaded-pole type. Multispeed Motors: Variable-torque, permanent-split-capacitor type.

3. Voltage: As indicated on Drawings.

4. Bearings: Pre-lubricated, antifriction ball bearings or sleeve bearings.

5. Thermal Protection: Internal, automatically reset.

D. ECM, where required in equipment specifications:a. Variable-speed, DC, brushless motors specifically designed for use with single

phase, 120 or 277 volt, 60 hertz electrical input. b. Operated by a single phase integrated controller/inverter that operates the wound

stator and senses rotor position to electronically commutate the stator. c. Designed for synchronous rotation. d. Permanent magnet type motor rotor with near zero rotor losses. e. Able to be mounted with shaft in horizontal or vertical orientation. f. Permanently lubricated with ball bearings. g. Direct coupled to the blower. h. Integral thermal overload protection.i. Minimum of 70% efficiency over its entire operating range. j. Anti-back rotation system or provide a motor that is designed to overcome reverse

rotation and not affect life expectancy.k. Inductors to minimize harmonic distortion and line noise.l. Motor control module:



1) Built-in soft start and soft speed change ramps. 2) Electronics and built-in surge protectors to protect the solid state controls

from line transients. 3) Variable speed mode to receive a variable control voltage signal from a

DDC system in response to external PID outputs.

PART 3 - EXECUTION

3.1 INSTALLATION

A. Access Panels

1. Furnish and install access panels in ceilings and walls for service and repair access to concealed equipment, including, but not limited to:a. Valves: hand operated and automatic.b. Strainers and traps.c. Air vents.d. Expansion compensators.e. Dampers: volume, control, fire/smoke.f. All control operators/devices.

2. Minimum Size: 18 inches by 18 inches. Where restrictions will not permit minimum size, verify access panel size with Construction Manager.

3. Provide access panels in accordance with the following schedule:

ACCESS PANEL SCHEDULE

Application Access Panel Spec. No.

Acoustical tile or acoustical plaster finishes 1

Gypsum board (dry wall) finishes 2

Fire rated walls 3

B. Sleeves and Plates

1. Furnish and install sleeves for all pipes passing through floors, walls, partitions, slabs, grade beams and foundations.

2. Layout, size, and locate sleeves such that they be set and installed prior to pouring concrete, or when masonry is being constructed. In event sleeves must be placed after floor, wall, grade beam, etc., has been constructed, submit in writing to and obtain approval from Construction Manager on location, quantity and proposed method of core drilling and installing.

3. Core drilled openings above grade in solid concrete need not be sleeved but must be clean and neat without cracking or spalling.

4. Sleeves shall be standard weight galvanized steel pipe having square cut ends with anchoring lugs welded on. Horizontal sleeves through walls, grade beams, foundations,



and partitions shall be flush with finished wall faces. Vertical sleeves through floors shall extend 2 inches above finished floor and be flush with finished ceiling or underside of floor construction.

5. Size sleeves such that internal diameter is 2 pipe sizes or a minimum of 2 inches larger than outside diameter of bare pipe for uninsulated lines and 2 inches larger than outside diameter of insulation and jacket for insulated lines. Center pipes in sleeves.

6. For lines passing through walls and floors above grade and with no fire or smoke rating, the annular space between outside of pipe or insulation and inside of sleeve or concrete shall be packed tight with batt-type fiberglass insulation.

7. For pipes passing through walls and floors above grade with smoke or fire rating of one hour or more, the annular space between outside of pipe or insulation and inside of sleeve or concrete shall be sealed with fire stop sealing system.

C. Fire Stop Sealing System

1. All floor and interior wall penetrations with smoke or fire rating of one hour or more shall be sealed. Refer to architectural drawings for locations of fire rated floors and walls.

2. Prepare penetration and install sealing material in accordance with the manufacturer's recommendations.

3. Through penetration fire stop sealing systems shall be identified on both sides with permanently mounted, preprinted vinyl labels which include the following information:a. The words “Warning: Through Penetration Firestop System – Do Not Disturb” or

similar phrase.b. Manufacturer’s brand name, product type or catalog numberc. Testing agency designation and ratingd. Installer’s Namee. Installation Date

D. Pipe Portals and Equipment Supports

1. Pipe portals and equipment supports provided as Work of this Section shall be coordinated with existing roof type and requirements of roofing installer. Shop drawing submittals for pipe portals and equipment supports, with, or without cants will be considered compatible with existing roof type and in compliance with roofer's requirements.

E. Equipment Nameplates

1. Furnish and install a full complement of nameplates for all items of HVAC equipment installed as Work of this Division, including boilers, chillers, pumps, air handling units, fans and building automation system panels.

2. Install nameplates parallel to equipment lines.

3. Unless noted, nameplates shall be attached with sheet metal screws or epoxy cement. Epoxy cement shall not be used on equipment installed outdoors.

4. Coordinate with Owner for nameplate designations. Submit a complete itemized listing of nameplate equipment designations for approval.

END OF SECTION 230505


HVAC PIPE AND PIPE FITTINGS 230510 - 1

SECTION 230510 – HVAC PIPE AND PIPE FITTINGS

PART 1 - GENERAL

1.1 WORK INCLUDED

A. The Work of this Section shall consist of the labor, materials and equipment required for the installation of HVAC piping and pipe fittings.

PART 2 - PRODUCTS

2.1 PIPE AND PIPE FITTINGS

A. Pipe shall conform to the materials specified herein, and shall be installed for piping systems as scheduled in Part 3 - Execution, of this Section.

2.2 TYPE L COPPER PIPE SPECIFICATION NO. 1

A. Design Pressure: 150 psig.

B. Maximum Design Temperature: 200 degrees F.

C. Sizes 2 inches and smaller:

1. Tubing: Type L hard drawn seamless copper tube, ASTM B88.

2. Joints: Solder type with 95-5 solder.

3. Fittings: Wrought copper solder joint, ANSI B16.22 or cast bronze solder joint, ANSI B16.18.

D. Sizes 2-1/2 inches and larger:

1. Tubing: Type L hard drawn seamless copper tube, ASTM B88.

2. Joints: Flanged and solder type with 95-5 solder or mechanically coupled grooved joints.

3. Fittings: Wrought copper solder joint, ANSI B16.22 or cast bronze solder joint, ANSI B16.18, or mechanically coupled grooved joints.

4. Flanges: 150 lb. class cast bronze, ANSI B16.24.

2.3 SCHEDULE 40 BLACK STEEL PIPE SPECIFICATION NO. 2






1. Pipe: Schedule 40 black steel, threaded and coupled, ASTM A53.

2. Joints: a. Water: Threaded or mechanically coupled grooved joints. b. Steam: Threaded.

3. Fittings: a. Water: 125 lb (S) - 175 lb (WOG) black cast iron, or mechanically coupled

grooved fittings.b. Steam: 125 lb (S) - 175 lb (WOG) black cast iron.

4. Unions: 250 lb (S) - 500 lb (WOG) black malleable iron, ground joint with brass seat.


1. Pipe: Schedule 40 black steel, beveled ends, ASTM A53.

2. Joints: a. Water: Butt welded and flanged, or mechanically coupled grooved joints.b. Steam: Butt welded and flanged.

3. Fittings: a. Water: Schedule 40 seamless steel, butt weld type, ASTM A234 , or mechanically

coupled fittings.b. Steam: Schedule 40 seamless steel, butt weld type, ASTM A234.

4. Flanges: 150 lb forged steel, welding neck or slip on, ASTM A181 Class 60.

2.4 SCHEDULE 40 SEAMLESS BLACK STEEL PIPE SPECIFICATION NO. 3




1. Pipe: Schedule 40 seamless, black steel, threaded and coupled ASTM A53, Grade B and ANSI B36.10.

2. Fittings: 250 lb (S) - 400 lb (WOG) black malleable iron, ASTM B16.3.

3. Joints: Threaded.

4. Unions: 250 lb (S) - 500 lb (WOG) black malleable iron, ground joint with brass seat.


1. Pipe: Schedule 40, seamless black steel, beveled ends, ASTM A53 Grade B and ANSI B36.10.

2. Joints: Butt welded and flanged.

3. Fittings: Schedule 40 seamless steel, butt weld type, ASTM A234.



4. Flanges: 300 lb forged steel, welding neck or slip- on, ASTM A181, Class60, ANSI B16.5.

2.5 SCHEDULE 80 SEAMLESS BLACK STEEL PIPE SPECIFICATION NO. 4



C. Sizes 1-1/4 inches and smaller:

1. Pipe: Schedule 80, seamless, black steel, ASTM A53 Grade B.

2. Joints: Threaded.

3. Fittings: 250 lb. (S) - 400 lb. (WOG), black malleable iron, ASTM B16.3.

4. Unions: 250 lb. (S) - 500 lb. (WOG) black malleable iron, ground joint with brass seat.

D. Sizes 1-1/2 inches through 12 inches:

1. Pipe: Schedule 80, seamless, black steel, ASTM A53, Grade B.

2. Joints: Butt welded and flanged.

3. Fittings: Schedule 80, seamless steel, butt weld type, ASTM 234.

4. Flanges: 150 lb. forged steel, welding neck or slip on, ASTM 181, Class 60, ANSI B16.5. Welding neck type shall have bore to match pipe.

2.6 TYPE L COPPER PIPE SPECIFICATION NO. 5




1. Tubing: Type L hard drawn seamless copper tube, ASTM B280 (ACR).

2. Joints: Brazed, AWS A5.8 B Cup silver/phosphorus/copper alloy.

3. Fittings: Wrought copper solder joint, ANSI B16.22.

PART 3 - EXECUTION

3.1 APPLICATION

A. Piping systems shall be installed in accordance with the following pipe schedule(s).



PIPE SCHEDULE

Service Application Pipe Spec. No.

Make-up Water All 1

Steam - Low Pressure (15 psig & below)

SupplyCondensate Return

24

Steam - MediumPressure (60 psig)


34

Steam - HighPressure (100 psig)


34

Pumped Condensate All 2 or 4

Heating Hot Water All 1 or 2

Chilled Water All 1 or 2

Condensate Drainage, Cold All 1

Refrigerant All 5

3.2 INSTALLATION

A. Contractor shall carefully follow the Drawings in laying out and installing his work and he shall not deviate therefrom, except for structural or interior finish interferences, and then only upon Construction Manager's approval.

B. All pipe and fittings shall be carefully inspected for defects in workmanship prior to installation. Any item found unsuitable, cracked, or otherwise defective shall be rejected and removed from the jobsite. All pipe and fittings shall have factory applied markings, stampings, or nameplates with sufficient data for identification to determine their conformance with specified requirements.

C. During construction all openings in piping shall be kept closed except when actual work is being performed on that item. Closures shall be plugs, caps, blind flanges, or other items specifically intended for this purpose. Exercise all necessary care to prevent foreign objects from entering material.

D. Run pipe lines straight and true, parallel to building lines with a minimum use of offsets and couplings. Use full and double lengths of pipe wherever possible.

E. Changes in direction shall be made only with pipe bends or fittings. Changes in size shall be made with fittings only. All fittings shall be of the long radius type, unless otherwise specified. Changes in direction on drainage pipe systems shall be made with wye fittings, combination wye and eighth bends, or one-eighth bends.

F. Provide flanges or unions at all final connections to equipment, traps and valves to facilitate dismantling.



G. Unless otherwise indicated, install all supply piping to coils, pumps and other equipment at line size with reduction in size being made only at inlet to control valve or pump. Install supply piping from outlet of control valve at full size of connection in equipment served. Install piping in equipment outlet or return lines beyond dirt pockets the size of tapping in the trap or, if no trap, the size of the equipment connection.

H. All pipe shall be cut to exact measurement, and installed without springing or forcing. Particular care shall be taken to avoid creating, even temporarily, undue loads, forces or strains on valves, equipment or building elements with piping connections or piping supports.

I. Unless otherwise indicated, branch take-offs shall be from top of mains or headers at either a 45 degree or 90 degree angle from the horizontal plane for steam lines, and from top, bottom or side for liquids.

J. Pipe joints connecting dissimilar metals shall be insulating, dielectric connections. Copper tubing shall be protected from electrolysis at contact points with ferrous metals, including temporary methods of support, by use of insulating, non conductive spacers such as rubber, fiberglass or an approved equal. Pipe hangers for bare copper tubing shall be copper plated.

3.3 PIPE JOINTS

A. Mechanically Coupled Grooved Joints:

1. All grooved piping shall be installed and supported in strict adherence to the grooved manufactures installation and pipe supporting instructions.

2. Select proper gasket material that is compatible with fluid requirements.

3. Gasket lubricant shall be from the same manufacture as the couplings.

4. Pipe shall be grooved to manufactures recommended specifications.

5. Grooving tools shall be from the same manufacture as the couplings.

6. All couplings, fittings, flanges, valves and accessories shall be from the same manufacturer. All grooved piping products (i.e. couplings, fittings, valves and accessories) used on hot water systems shall have a temperature rating of at least 250 degrees F.

7. All couplings used up to and including 24 inches shall have a minimum pressure rating of 350 PSI.

8. All couplings shall be the rigid design except as needed or required.

9. All castings shall be date stamped for quality assurance and traceability.

10. The grooved mechanical coupling manufacturer shall have a factory trained field representative to be available to visit the job site. That representative shall provide training for contractor’s field personnel, and view installed product to promote conformance to installation requirements, if requested by the Owner or Architect. The name and contact information of that representative should be part of the submittal package.

B. Solder Joints:



1. Make up joints with 95 percent tin and 5 percent antimony (95-5) solder conforming to ASTM B32 Solder Metal, Grade 95TA.

2. Cut copper tubing so ends are perfectly square and remove all burrs inside and outside.

3. Thoroughly clean sockets of fittings and ends of tubing to remove all oxide, dirt, and grease just prior to soldering.

4. Apply flux evenly, but sparingly, over all surfaces to be joined. Heat joints uniformly to proper soldering temperature so solder will flow to all mated surfaces. Wipe excess solder, leaving a uniform fillet around cup of fitting. Flux shall be non acid type.

5. Remove composition discs from solder end valves during soldering.

C. Brazed Joints:

1. Make up joints with silver alloy brazing filler metal.

2. Cut copper tubing so ends are perfectly square and remove all burrs inside and outside. Thoroughly clean sockets of fittings and ends of tubing to remove all oxide, dirt, and grease just prior to brazing.

3. Apply non-corrosive flux of the type recommended by filler alloy manufacturer evenly, but sparingly, over all surfaces to be joined. Heat joints uniformly to proper brazing temperatures using oxygen-acetylene torch with tip size as recommended by fitting manufacturer. Wipe and brush joint clean after alloy has set.

4. Remove composition discs from solder end valves during brazing.

D. Welded Joints:

1. The welding of all pipe joints, both as to procedures and qualification of welders, shall be in accordance with Section IX, ASME Boiler & Pressure Vessel Code, unless mandatory local codes take precedence.

2. Ends of pipe and fittings to be joined by butt welding shall be beveled, cleaned to bare metal and internal diameters aligned before tack welding.

E. Threaded Joints:

1. Pipe screw threads shall conform to ANSI B16.3, Malleable Iron Threaded Fittings or ASTM B687, Brass, Copper, and Chromium-Plated Pipe Nipples.

2. Ream pipe ends and remove all burrs and chips formed in cutting and threading.

3. Protect plated pipe and brass valve bodies from wrench marks when making-up joint.

4. Apply thread lubricant to male threads only.

F. Flanged Joints:

1. Steel pipe flanges shall conform to ANSI B16.5, Steel Pipe Flanges and Flanged Fittings. Cast iron pipe flanges shall conform to ANSI B16.1, Cast Iron Flanges and Flanged Fittings.

2. Steel flanges shall be raised face except when bolted to flat cast iron flange.

3. Bolting for services up to 500 degrees F. shall be ASTM A307, Grade B with square head bolts and heavy hexagonal nuts conforming to ANSI B18.2.1, Square and Hex Bolts and B18.2.2, Square and Hex Nuts. Set flange bolts beyond finger tightness with an



indicating torque wrench to insure equal tension in all bolts. Tighten bolts such that those 180 degrees apart or directly opposite are torqued in sequence.

4. Gaskets for flat face flanges shall form to requirements for Group I Gaskets in ANSI B16.5. Unless otherwise specified, gaskets shall be 3/32 inch thick.



HVAC PIPING SPECIALTIES 230515 - 1

SECTION 230515 – HVAC PIPING SPECIALTIES

PART 1 - GENERAL

1.1 WORK INCLUDED

A. The Work of this Section shall consist of the labor, materials, and equipment required for the installation of HVAC piping specialties.

1.2 SUBMITTALS


1. Y-Type Strainers

2. Branch Connections

3. Pipe & Valve Identification

4. Expansion Compensators, Pipe Guides and Anchors

5. Flexible Pipe Connectors

6. Dielectric Connections

7. Thermometers, including scale range

8. Pressure Gages, including scale range

9. Pressure/Temperature (P/T) Test Plugs

B. Product Data: Submit manufacturer's technical product data for each type of measuring instrument. Submit schedule showing manufacturer's model number, scale range, location, and accessories for each type and application.

PART 2 - PRODUCTS

2.1 Y-TYPE STRAINERS, WATER PIPING

A. Acceptable Manufacturer: Apollo (Conbraco), Armstrong International, Hoffman Specialty ITT, Metraflex Co., Spirax Sarco, or Watts Regulator Co

B. Provide strainers full line size of connecting piping, with ends matching piping system materials. Strainers shall be Y-pattern type having 304 stainless steel screens with perforations/mesh sizes as follows:



Pipe Size Coarse Straining(typically at central Plant equipment)

Medium Straining(typically at terminal/

control equipment)

1/4 ” to 2” 1/16” 1/32” or 20 mesh

2-1/2” to 4” 1/8” 1/16”

5” and larger 3/16” 1/8”

C. Type WST-1

1. 2 inches and smaller, threaded ends.

2. Cast-iron or bronze body, screwed screen retainer with centered blowdown fitted with drain plug.

3. Pressure: 400 psig (WOG).

D. Type WST-2

1. 2-1/2 inches and larger, flanged ends.

2. Cast-iron or steel body, bolted screen retainer with off-centered blowdown fitted with hose end drain valve.

3. Pressure: 175 psig (WOG).

E. Type WST-3

1. Grooved Ends, 2-1/2 inches and larger, grooved ends.

2. Steel, ductile-iron or malleable-iron body and access end cap with off-center blowdown fitted with hose end drain valve.

3. Pressure: 175 psig (WOG)

2.2 Y-TYPE STRAINERS, STEAM AND CONDENSATE RETURN PIPING

A. Acceptable Manufacturers: Apollo/Conbraco, Armstrong International, Spirax Sarco, or Watts Regulator Co.

B. Provide strainers full line size of connecting piping, with ends matching piping system materials. Strainers shall be Y-pattern type having 304 stainless steel screens with perforations/mesh sizes as follows:

Pipe Size Coarse Straining(typically at central Plant equipment)

Medium Straining(typically at terminal/

control equipment)

1/4 ” to 2” 1/16” 1/32” or 20 mesh

2-1/2” and larger 1/16” 3/64”

C. Type SST-1: (low, medium, and high pressure steam systems)

1. 2 inches and smaller, screwed ends.



2. Construction: Cast iron or bronze body, threaded ends, screwed screen retainer with centered blowdown fitted with drain plug,

3. Pressure: 250 psig (S).

D. Type SST-2: (low and medium pressure steam systems)

1. 2-1/2 inches and larger, screwed ends.

2. Construction: Cast iron or bronze body, bolted screen retainer with off-centered blowdown fitted with hose end drain valve.

3. Pressure: 125 psig (s).

E. Type SST-3: (low and medium pressure steam systems)


2. Construction: Cast iron body, bolted screen retainer with off-centered blowdown fitted with hose end drain valve.

3. Pressure: 125 psig (S).

F. Type SST-4: (high pressure steam systems)


2. Construction: Steel body, bolted screen retainer with off-centered blowdown fitted with hose end drain valve.

3. Pressure: Class 600.

2.3 BRANCH CONNECTIONS

A. Branch connections shall be made with standard tee of the type required for the service unless otherwise specified or detailed.

B. At Contractor's option, branch connections from headers and mains may be cut into black steel pipe using forged weld-on fittings. Weld-on fittings shall conform to chemical and physical requirements of ASTM A-234 and design and installation requirements of ANSI B31.1.

C. Weld-on fittings shall have a pressure rating equal to, or greater than, the maximum working pressure of the pipe system where they are installed.

1. Acceptable Manufacturer: Allied Piping Products Co. Branchlets (Shaped nipples), or Bonney Forge Weldolet & Threadolet.

2.4 ESCUTCHEON PLATES

A. Plates shall be installed on all pipes and conduit passing through floors, walls, partitions, etc., in exposed areas.

B. Plates installed on pipe passing through core drilled openings in solid concrete without sleeves shall be solid ring, cast iron with one set screw for sizes up to 4 inches and two set screws for sizes up to 8 inches.



C. Plates installed on pipe and conduit passing through openings with sleeves shall be solid ring, cast iron.

2.5 PIPE AND VALVE IDENTIFICATION

A. Acceptable Manufacturer: W. H. Brady Company, or Seton Nameplate Corp., Brimar Industries.

B. Shutoff valves and control equipment shall be marked by means of a brass or plastic disc minimum of 1 inch in diameter fastened to valve wheel or stem by brass wire or chain. Each disc shall have a legibly marked identification number. A typewritten chart listing all valve tags, location, and service shall be included in the operating and maintenance manual. The valve chart numbering sequence shall be approved by Owner.

C. All piping installed as Work of this Division shall be identified by legend and flow arrow. Identification system shall conform to ANSI A-13.1. Identification markers shall use ANSI standard background colors and be text size. Markers shall be attached to pipe by wrapping with color coded banding tape. Markers shall be located as follows:

1. Near each valve and control device.

2. Near each branch connection, excluding short takeoffs for fixtures and terminal units. Where flow pattern is not obvious, mark each pipe at branch.

3. Near penetrations through walls, floors, ceilings, and nonaccessible enclosures.

4. At access doors, manholes, and similar access points that permit view of concealed piping.

5. Near major equipment items and other points of origination and termination.

6. Spaced at maximum intervals of 25 feet along each run.

2.6 EXPANSION COMPENSATORS, PIPE GUIDES, AND ANCHORS

A. Expansion Compensator Type EXC-1

1. Acceptable Manufacturer: Flexonics, or Keflex, Metraflex, Hyspan.

2. Compensators shall be suitable for absorbing expansion and contraction in iron and steel pipe 3 inches and smaller. Compensators shall be constructed with two ply stainless steel bellows, carbon steel shroud and threaded end fittings.

3. Units shall have internal guides, internal anti torque device, positioning clip, 150 psi maximum working pressure, 750 degrees F maximum operating temperature, and 2 inch stroke.

B. Expansion Compensator Type EXC-2

1. Acceptable Manufacturer: Flexonics, or Keflex, Metraflex, Hyspan.

2. Compensators shall be suitable for absorbing expansion and contraction in copper pipe 3 inch and smaller. Compensators shall be constructed with two ply phosphor bronze or stainless steel bellows, brass shroud, and threaded end fittings.



3. Units shall have internal guides, internal anti-torque device, positioning clip, 150 psi maximum working pressure up to 1 inch pipe size, 125 psi over 1 inch, 400 degrees F maximum operating temperature, and 2 inch stroke.

C. Expansion Compensator Type EXC-5

1. Acceptable Manufacturer: Flexonics, or Metraflex, Hyspan.

2. Compensators shall be suitable for absorbing expansion and contraction in piping 3 inch and larger. Compensators shall be constructed of corrugated stainless steel bellows with mated neck rings, reinforcing or control rings, and flanged or welded end fittings, 300 psi maximum working pressure, and 850 degrees F maximum operating temperature (welded end fitting, 800 degrees F. flanged end fitting). Stroke as listed on Drawings.

D. Provide dielectric flanges where compensators are used with copper pipe.

E. Pipe Guides

1. Acceptable Manufacturer: Flexonics Pipe Alignment Guides, or Keflex, Metraflex, Hyspan.

2. Pipe guides shall be installed as scheduled on the Drawings in accordance with manufacturer's recommendations. Guides shall consist of steel segmented spider sized to the OD of the pipe and free to move axially in a segmented steel cylinder. Guide shall be securely attached to the building structure.

F. Pipe Anchors: Anchors shall be installed in accordance with pipe guide manufacturer and expansion compensator manufacturer recommendations. Anchors shall securely attach the piping system to the building structure.

2.7 FLEXIBLE PIPE CONNECTORS

A. Metal Hose Type

1. Acceptable Manufacturer: Flexonics, or Keflex, Metraflex, Flex-Hose.

2. Connectors shall be constructed of a stainless steel corrugated core covered with high tensile tubular braiding. Ends for piping 2 inches and smaller shall be screwed or solder joint as required. Ends for piping 2-1/2 inch and larger shall be flanged.

2.8 DIELECTRIC CONNECTIONS

A. Pipe joints connecting dissimilar metals shall be insulating, dielectric connections. Dielectric connections shall also be furnished for joining similar metals in order to isolate cathodically protected pipelines from adjoining pipe sections. Such joints, including dielectric material, shall be rated to withstand the temperature, pressure, and other characteristics of the service for which it is to be used, including testing pressure.

B. Screwed joints shall be made with insulating unions.

1. Acceptable Manufacturer: Watts, or Stockham Valves & Fittings.



C. Flanged joints shall be made up with insulating gaskets, bolt sleeves, and washers.

1. Acceptable Manufacturer: Watts.

2.9 THERMOMETERS, LIQUID IN GLASS

A. Acceptable Manufacturer: Ashcroft Inc., or Ernst Flow Industries, Marsh Instruments, Miljoco Corporation, Trerice, H.O. Co., Weiss Instruments Inc., Weksler.

B. General: Provide stem type glass thermometers, per Standard ASME B40.200, of materials, capacities, and ranges indicated, designed and constructed for use in service indicated.

C. Case: Die cast aluminum finished in baked epoxy enamel, glass front, spring secured, 9 inches long, acrylic or glass window face.

D. Adjustable Joint: Die cast aluminum, finished to match case, 180 degree adjustment in vertical plane, 360 degree adjustment in horizontal plane, with locking device.

E. Tube and Capillary: Glass with magnifying lens, blue or red organic liquid (non-mercury), 1percent scale range accuracy, shock mounted.

F. Scale: Satin faced, non-reflective aluminum, permanently etched markings.

G. Stem: Copper-plated steel, aluminum, or brass, for separable socket, length to suit installation.

1. Design for Thermowell Installation: Bare stem.

2. Design for Air-Duct Installation: With ventilated shroud.

H. Accuracy: Plus or minus 1 percent of scale range or one scale division, to a maximum of 1.5 percent of scale range.

I. Range: Full scale range shall be selected to be approximately 1.33 to 2.0 times the normal maximum operating temperature. Use the following ranges as a guide.

1. Chilled Water (40-75 degrees F max): 0 – 100 degrees F with 1degree F scale divisions.

2. Condenser Water: 0-160 degrees F with 2 degree F scale divisions.

3. Hot Water (120-180 degrees F max): 30 – 240 degrees F with 2 degrees F scale divisions.

4. Steam and Condensate Return: 50 to 400 degrees F with 5 degree scale divisions.

5. Conditioned Air Ducts: 0 to 160 degrees F with 2 degrees F scale divisions.

J. Thermowells:

1. Standard: ASME B40.200.

2. Description: Pressure-tight, socket-type fitting made for insertion into piping tee fitting.

3. Material for Use with Copper Tubing: Brass

4. Material for Use with Steel Piping: Brass or Stainless Steel.

5. Bore: Diameter required to match thermometer bulb or stem.



6. Insertion Length: Length required to match thermometer bulb or stem.

7. Lagging Extension: Include on thermowells for insulated piping and tubing.

8. Bushings: For converting size of thermowell's internal screw thread to size of thermometer connection.

9. Heat-transfer compound: Used to improve thermal transfer and to eliminate condensation forming within the thermowell. Compound shall consist of synthetic, efficient thermally conductive ceramic or metal oxides in a homogeneous, non-hardening paste with negligible bleed and evaporation loss. Compound shall not cause catalytic corrosion between probe material and thermowell).

2.10 PRESSURE GAGES

A. Acceptable Manufacturer: Ashcroft Inc., or Ernst Flow Industries, Marsh Instruments, Miljoco Corporation, Trerice, H.O. Co., Weiss Instruments Inc., Weksler.

B. General: Provide pressure gages of materials, capacities, and ranges indicated, designed and constructed for use in service indicated.

C. Type: General HVAC grade, 1 percent accuracy, ANSI B40.1 grade A, glycerine filled phosphor bronze bourdon type, rotary brass movement with front recalibration adjustment bottom connection.

D. Case: Aluminum or nylon, glass (or acrylic) lens, 4-1/2 inches diameter.

E. Connector: Brass with 1/4 inch male NPT. Provide protective syphon when used for steam service.

F. Scale: White coated aluminum, with permanently etched black markings.

G. Set Hands: Where pressure gages are indicated for use across pump suction diffusers or straining / filter devices, provide adjustable set hands to indicate recommended pressure ranges of system.

H. Range: Select for normal operating pressure to be approximately mid range of scale with full scale range shall be selected to be approximately 1.5 to 2.5 times the normal maximum operating pressure. The following typical ranges are suggested.

1. Water: a. 0 - 15 psig (between 2 to 10 psig max operating pressure)b. 0 - 30 psig (between 10 to 20 psig max operating pressure)c. 0 - 60 psig (between 20 to 40 psig max operating pressure)d. 0 - 100 psig (between 40 to 60 psig max operating pressure)e. 0 - 160 psig (between 60 to 100 psig max operating pressure)f. 0 - 200 psig (between 100 to 130 psig max operating pressure)g. 0 - 300 psig (between 130 to 200 psig max operating pressure)

2. Steam:a. 0 - 200 psig (High Pressure – up to 125 psig max operating)b. 0 - 100 psig (Medium Pressure – up to 50 psig max operating)c. 0 - 30 psig (Low Pressure – up to 15 psig max operating)



I. Gage Attachments

1. Snubbers: ASME B40.100, brass; with 1/4 inch NPT, ASME B1.20.1 pipe threads and porous-stainless steel filter-type surge-dampening device. Include extension for use on insulated piping.

2. Siphons: Loop-shaped section of brass (for normal operating pressure/temperature up to 200 psi, 325 degrees F) or stainless-steel (for normal operating pressure/temperature greater than for brass) pipe with 1/4 inch NPT pipe threads.

3. Ball Valves: Selected for working pressure suitable for application, with 1/4 inch NPT, ASME B1.20.1 pipe threads.

2.11 PRESSURE/TEMPERATURE (P/T) TEST PLUGS

A. Acceptable Manufacturer: Peterson Equipment Co., or Sisco, Watts Regulator.

B. Construction: Brass with NPT fitting and self-sealing, dual valve core type Nordel gasketed orifice suitable for inserting 1/8 inch O.D. probe assembly from dial type insertion thermometer or pressure gage. Equip orifice with gasketed screw cap and chain.

C. Pressure Rating: 500 psi and 275 degrees F.

D. Size: 1/4 inch NPT for installation in pipe sizes through 2 inches. 1/2 inch NPT for installation in pipe sizes 2-1/2 inches and larger

E. Provide extension of length equal to insulation thickness for insulated piping.

F. Accessories

1. For hydronic systems with nine or less water coils, provide one 1/8 inch OD stainless steel gage adapter.

2. For hydronic systems with ten or more water coils, provide one system test kit consisting of one 2-1/2 inch dial face gage 0 to 200 psig, one 1 inch dial face thermometer 0 to 220degrees F, one 1 inch dial face thermometer 50 to 500 degrees F, one 1/8 inch OD stainless steel gage adapter, and carrying case.

PART 3 - EXECUTION

3.1 INSTALLATION

A. Contractor shall carefully follow the Drawings in laying out and installing his work. He shall not deviate therefrom, except for structural or interior finish interferences, and then only upon Construction Manager's approval.

B. All equipment and accessories shall be carefully inspected for defects in workmanship prior to installation. Any item found unsuitable, cracked, or otherwise defective shall be rejected and removed from the jobsite. All equipment shall have factory applied markings, stampings, or nameplates with sufficient data for identification to determine their conformance with specified requirements.



C. Piping specialties shall be installed in accordance with the equipment manufacturer's recommendations. A manufacturer's representative shall certify, in writing, any equipment installation requested by Construction Manager.

D. During construction all openings in equipment shall be kept closed except when actual work is being performed on that item. Closures shall be plugs, caps, blind flanges, or other items specifically intended for this purpose. Exercise all necessary care to prevent foreign objects from entering material.

E. Provide flanges or unions at all final connections to equipment and traps to facilitate dismantling.

F. Install strainers in horizontal piping, full size of pipe, in accordance with manufacturer's installation instructions and as follows:

1. Water Piping:a. Install with screen pocket pointing downwards. b. Where installation in horizontal piping is not possible, install in vertical piping

with the flow downwards. Installation with upward flow is prohibited.

2. Steam Piping: a. Install with screen pocket in the horizontal plane.b. Installation in vertical piping is prohibited.

3. Install pipe nipple and hose end drain valve in strainer blowdown connection, full size of connection, except for strainers 2 inches and smaller.

4. Where indicated on Drawings, provide drain line from drain valve to plumbing drain, full size of blow down connection.

5. Where strainers are installed in pipe branches serving multiple terminals rather than at each individual terminal, provide isolation valves on each side of the strainer to allow for routine blowdown service without draining the piping system.

6. Replace any temporary fine mesh start-up screens if used during initial cleaning and flushing of systems.

G. Unless otherwise indicated, branch take-offs shall be from top of mains or headers at either a 45 degree or 90 degree angle from the horizontal plane for steam, air, or gas lines and from top, bottom, or side for liquids.

H. Pipe joints connecting dissimilar metals shall be insulating dielectric connections. Copper tubing shall be protected from electrolysis at contact points with ferrous metals, including temporary methods of support, by use of insulating non conductive spacers such as rubber, fiberglass, or an approved equal. Pipe hangers for bare copper tubing shall be copper plated.

I. Thermometers shall be installed where indicated on the Drawings and in locations where they are easily read from normal operating level. Install thermometers in piping systems in wells in short couplings. Enlarge pipes smaller than 2-1/2 inch for installation of thermometer wells. Ensure wells allow clearance from insulation. Fill voids between thermowell and thermometer and sensor stems with heat conducting compound before installing in wells.



J. Install thermometers in the following locations:

1. Inlet and outlet of each hydronic boiler.

2. Inlets and two outlets of each hydronic heat exchanger.

K. Pressure gages shall be installed vertically where indicated on the Drawings and in locations where they are easily readable from normal operating level. Pressure gages installed in steam systems shall be installed with a pigtail and stop. Pressure gages installed in water systems shall be installed with a ball valve.

L. Install pressure/temperature test plugs in piping tee where required to allow for balancing and troubleshooting without requiring permanent pressure gages and thermometers. Position on pipe at most accessible and readable position.

M. Adjust gages and thermometers to final angle, clean windows and lenses, and calibrate.

1. Adjusting: Adjust faces of meters and gages to proper angle for best visibility. a. For gages on straining/filtering devices, adjust set hands on pressure gages to

accurately indicate when service is required (approximately 50% above pressure differential when clean (or as otherwise recommended by strainer/filter manufacturer).

b. After installation, zero and/or calibrate meters and gages according to manufacturer's written instructions.

2. Cleaning: Clean windows of meters and gages and factory-finished surfaces. Replace cracked or broken windows, repair any scratched or marred surfaces with manufacturer's touch-up paint.



HVAC VALVES 230525 - 1

SECTION 230525 – HVAC VALVES

PART 1 - GENERAL

1.1 WORK INCLUDED

A. The Work of this Section shall consist of the labor, materials and equipment required for the installation of HVAC valves.

1.2 SUBMITTALS


1. Valves

PART 2 - PRODUCTS

2.1 VALVES

A. Furnish and install valves as specified herein and as scheduled in Part 3 – Execution, of this Section. Insofar as possible all valves shall be of a single manufacturer.

B. Packings, gaskets, discs, seats, diaphragms, lubricants, etc., shall conform to recommendations of the valve manufacturer for the intended service.

C. If space permits, install valves with stems horizontal or extending vertically upward unless specifically shown otherwise. Valves shall be installed in accessible locations for operation as well as for removal, repair, or replacement.

D. Valves installed in Insulated Piping: With stem or neck extensions of sufficient length to accommodate insulation thickness and the following features:

1. Gate Valves: With rising stem.2. Ball Valves: With extended operating handle of non-thermal-conductive material, and

protective sleeve that allows operation of valve without breaking the vapor seal or disturbing insulation.

3. Butterfly Valves: With extended neck.

E. Valve body materials shall be compatible with piping system materials.

F. Valves shall have right-handed threads.

G. Valves shall conform to the following schedules:



BALL VALVE SPECIFICATIONS

Type Size Press.psig

Description AcceptableManufacturer

BA-1 thru 2" 150S400WOG

Threaded ends;Bronze breakdownstyle body;Stainless steel ball;Full port;Teflon seats

Nibco

BA-4 2-1/2"thru 10"

125 WSP200WOG

Cast iron body ASTM A126;Interior and exterior epoxy coated;PTFE infused cast iron ball;Flanged ends;Full port thru 6 inches

American Valve Model 4000

CHECK VALVE SPECIFICATIONS



CK-1 thru 2" 150S Threaded ends;Bronze body;Regrinding swing type

Anvil International,Crane, Hammond, Milwaukee, Nibco

CK-4 2-1/2” thru 12”

Class 125 200WOG

Flanged ends;Cast iron body;Bronze seat;Bronze disc;Stainless steel spring (non-slam)

Milwaukee,Nibco



GATE VALVE SPECIFICATIONS



GA-3 2-1/2"thru12"

125S200WOG

Flanged ends;Iron body;Bronze trim;OS&Y


GA-4 thru 2" 150S300WOG

Threaded ends;Bronze body;Rising stem;Union bonnet


GA-5 2-1/2"thru 12"

250S500WOG

Flanged ends;Iron body;Rising stem;Union bonnet


GLOBE VALVE SPECIFICATIONS



GL-1 thru 2" 120S300WOG

Threaded ends;Bronze body;Non-metallic disc


GL-3 2-1/2"thru10"

125S200WOG

& 450Deg. F.

Flanged ends;Iron body;Bronze trim;Rising stem;Bronze or bronzefaced iron disc




GLOBE VALVE SPECIFICATIONS



GL-4 thru 2" 150S300WOG

Threaded ends;Bronze body;Rising stem;Alloy trim;Renewable plug disc


GL-5 2-1/2"thru8"

250S500WOG

Flanged ends;Iron body;Bronze trim;Renewable seat and disc;OS&Y


PART 3 - EXECUTION

3.1 APPLICATION

A. Valves shall be installed in accordance with the following valve schedule:

VALVE SCHEDULE

Piping System

Valve Service

Shut-off Balancing Check

Heating Hot Water BA-1, BA-4 n/a CK-4

Boiler Isolation GA-3 n/a n/a

Chilled Water BA-1, BA-4 n/a n/a

Low Pressure Steam & Condensate Return (15 psig & below)

BA-1, BA-4 GL-1, GL-3 CK-1

Medium Pressure Steam & Condensate Return (60 psig)

BA-1, BA-4 GL-1, GL-3 CK-1

High Pressure Steam & Condensate Return (100 psig)

GA-4, GA-5, BA-1, BA-4

GL-4, GL-5 CK-1

Make-up Water BA-1 n/a n/a



3.2 INSTALLATION

A. Contractor shall carefully follow the Drawings in laying out and installing his work and he shall not deviate therefrom, except for structural or interior finish interferences, and then only upon Architect's approval.

B. All valves shall be carefully inspected for defects in workmanship prior to installation. Any item found unsuitable, cracked, or otherwise defective shall be rejected and removed from the job site. All valves shall have factory applied markings, stampings, or nameplates with sufficient data for identification to determine their conformance with specified requirements.

C. Provide flanges or unions at all final connections to valves to facilitate dismantling.

D. Unless otherwise indicated, install all shutoff valves to coils, pumps and other equipment at line size with reduction in size being made only at inlet to control valve or pump. Install check valves and shutoff valves in equipment outlet or return lines beyond dirt pockets the size of tapping in the trap or, if no trap, the size of the equipment connection.

E. Where possible, install valves with bonnets in an upright position.



HVAC SUPPORTS AND ANCHORS 230530 - 1

SECTION 230530 – HVAC SUPPORTS AND ANCHORS

PART 1 - GENERAL

1.1 WORK INCLUDED

A. The Work of this Section shall consist of the labor, materials and equipment required for the installation of HVAC supporting devices.

1.2 SUBMITTALS


1. Roof Piping Supports

PART 2 - PRODUCTS

2.1 HANGERS, INSULATED PIPING

A. Acceptable Manufacturer: Anvil International, or Penn Pipe Hanger.

B. Hangers used with insulated piping shall be sized to accommodate the pipe, and insulation and shall have a support shield to prevent the hanger from compressing the insulation. Hanger shall be clevis type with rod and two nuts or bolt and nut.

2.2 HANGERS, ROLLER TYPE


B. Hangers for piping 4 inches and larger shall consist of a single pipe roll support with adjustable socket, rod and hex nuts, and an insulation shield. Where pipe insulation thickness requirements exceed allowable overall outside diameter for use with insulation shield, provide instead pipe insulation protection saddle, suitable for pipe insulation thickness specified.

2.3 BEAM CLAMPS

A. For pipe sizes of 3 inches and smaller:

1. Acceptable Manufacturer: Anvil International, or Penn Pipe Hanger.

2. Clamps for attachment to I-beams and/or steel joists shall be malleable iron C-clamp with hardened steel cup and point set screw and locknut.

B. For pipe sizes of 4 inches and larger:



1. Acceptable Manufacturer: Anvil International.

2. Clamps for attachment to I-beams and/or steel joists shall be adjustable type with malleable iron jaw, steel tie rod, nuts, and washer.

2.4 PIPE RISER CLAMPS


B. Pipe riser clamps for both insulated and uninsulated vertical pipe risers shall be 2-piece clamp complete with 2 bolts and 2 nuts, sized for the OD of the bare pipe to be supported. Clamp shall be carbon steel construction with galvanized finish for ferrous pipe and copper plated for copper piping.

2.5 ROOF PIPING SUPPORTS

A. Acceptable Manufacturer: Miro Industries Model Nos. 3-R and 4-R, or MAPA Products.

B. Pipestand: A roller bearing pipe support which consists of the following three components:

1. A one-piece square roof deck base.

2. Pipe support and roller housing support composed of rigid polycarbonate resin.

3. Roller made of polycarbonate resin which rests on a nylon rod of 9/16 inch diameter.

2.6 OUTDOOR INSTALLATIONS

A. All components of support and anchor systems installed outdoors shall be hot dipped galvanized or stainless steel. Apply galvanizing-repair paint to any surfaces damaged during installation.

B. Any components that are not available in galvanized or stainless steel shall be properly prepared, primed and painted using zinc rich primer and two top coats by brushing or spraying to a minimum dry film thickness of 2 mils per coat. Paint color shall be as selected by Owner.

C. Equipment or materials stabilized with guy wires shall have turn buckles with lock wire, all stainless steel. Submit proposed support plans to Construction Manager for approval prior to installation.

PART 3 - EXECUTION

3.1 INSTALLATION

A. The requirements of the applicable Sections of ANSI B31, Pressure Piping shall be considered as minimum requirements governing fabrication, installation, and support of piping systems except where more specific or stringent requirements are stated herein or shown on the Drawings.



B. All piping and piping connected equipment, including valves, strainers, traps, and other specialties and accessories shall be supported in a manner that will not result in excessive stress, deflection, swaying, sagging or vibration in the piping or in the building structure either during erection, cleaning, testing, or normal operation of the systems. Piping shall not be so restrained, however, as to cause it to snake or buckle between supports or anchors, or to prevent proper movement due to expansion and contraction. Piping shall be supported at equipment and valves such that they can be disconnected and removed without further supporting the piping. Piping shall not introduce any strains or distortion to the connected equipment.

C. Hangers, riser clamps, and supports shall be installed complete, including locknuts, clamps, rods, bolts, couplings, swivels, inserts, and required accessory items. Hangers for horizontal piping shall have adequate means of vertical adjustment for proper alignment of pipe, and shall be provided with locknuts. All hangers, riser clamps, and supports in direct contact with copper piping shall be copper plated or plastic coated.

D. Maximum spacing supports of horizontal piping shall be as listed below. Provide hanger rods in diameters recommended by hanger manufacturer.

PipeSize

UninsulatedSteel

InsulatedSteel

CopperTubing

1/2" 7' 7' 5'3/4" 7' 7' 5'1" 7' 7' 5'

1-1/4" 7' 7' 6'1-1/2" 9' 9' 8'

2" 10' 10' 8'2-1/2" 11' 10' 9'

3" 12' 10' 10'4" 12' 10' 10'5" 12' 10' 10'6" 12' 10' 10'8" 12' 10' 10'

E. Provide additional supports where pipe changes direction, adjacent to flanged valves and strainers, at equipment connections and heavy fittings. Provide at least one hanger adjacent to each grooved end steel pipe with mechanical couplings. Unless otherwise indicated on the Drawings, support vertical pipe with riser clamps installed below hubs, couplings or lugs welded to the pipe.

F. Inserts for supports in concrete slabs shall be drilled with rotary electric drill.

G. Beam clamps shall be used to attach hanger rods to structural steel.



HVAC SOUND AND VIBRATION CONTROL 230535 - 1

SECTION 230535 – HVAC SOUND AND VIBRATION CONTROL

PART 1 - GENERAL

1.1 WORK INCLUDED

A. The Work of this Section shall consist of the labor, materials, and equipment required for installation of sound and vibration control devices and materials to prevent sound transmission and vibration to the building structure.

1.2 RELATED SECTIONS

A. Section 230505, HVAC Basic Materials: Piping and ductwork penetrations.

B. Section 230515, HVAC Piping Specialties: Flexible pipe connectors.

C. Section 233010, Air Distribution: Flexible duct connectors.

1.3 SUBMITTALS


1. Isolators

2. Bases

B. Vibration Isolators and Bases: Submittal data shall show type, size, and deflection of each vibration isolator proposed. Concrete inertia bases shall be completely detailed. Include clearly outlined procedures for installing and adjusting vibration isolators.

C. Acoustical Treatment Materials: Submittal shall include construction details, materials, dimensions and attachment methods of individual components.

1.4 QUALITY ASSURANCE

A. Vibration isolation devices, including auxiliary steel bases and pouring forms, shall be designed and furnished by a single manufacturer or supplier to assure single responsibility for performance of vibration isolators installed.



PART 2 - PRODUCTS

2.1 GENERAL

A. Vibration isolators and bases for outdoor installations shall be suitably protected to prevent corrosion. Steel bases shall be primed and painted. Springs, nuts, bolts, etc., shall be cadmium plated and neoprene coated. Spring housings shall be neoprene coated.

2.2 ISOLATORS

A. Isolator Specification No. 1

1. Acceptable Manufacturer: Kinetics Noise Control Model FDS, or Amber/Booth, Vibration Mountings & Controls, Mason Industries, Vibration Eliminator Co.

2. Type: Free-standing spring isolator.

3. Description: Adjustable, free-standing, open spring mounting with combination leveling bolt and equipment fastening bolt. Spring rigidly attached to spring mounting baseplate and compression plate. A neoprene pad having a minimum thickness of 1/4 inch shall be bonded to the baseplate.

4. Design: Minimum Kx/Ky (horizontal-to-vertical spring rate) of 1.0 and shall fall into stable range as defined in the latest ASHRAE Systems Handbook.

B. Isolator Specification No. 3

1. Acceptable Manufacturer: Kinetics Noise Control Model RD, or Amber/Booth, Vibration Mountings & Controls, Mason Industries, Vibration Eliminator Co.

2. Type: Molded neoprene pad.

3. Description: A double deflection elastomeric mounting having a steel baseplate with mounting holes and a threaded insert at the top of or crossout the mounting for attaching equipment. All metal parts shall be completely embedded in elastomeric material. Elastomeric shall be neoprene or high quality synthetic rubber with anti-ozone and anti-oxident additives.

4. Design: Mountings shall be designed for approximately 1/4 inch deflection and loaded so that deflection does not exceed 15 percent of the free height of the mounting.

C. Isolator Specification No. 4

1. Acceptable Manufacturer: Kinetics Noise Control Model NG (neoprene), Model KIP (fiberglass), or Amber/Booth, Vibration Mountings & Controls, Mason Industries, Vibration Eliminator Co.

2. Type: Neoprene or fiberglass pad.

3. Description: A pad type mounting consisting of two layers of ribbed or waffled neoprene pads bonded to a galvanized steel separator plate, or a pad type precompressed molded fiberglass isolator, individually coated with elastomeric membrane.



D. Isolator Specification No. 5

1. Acceptable Manufacturer: Kinetics Noise Control Model SFH, or Amber/Booth, Vibration Mountings & Controls, Mason Industries, Vibration Eliminator Co.

2. Type: Hanger.

3. Description: A combination spring and elastomeric or fiberglass hanger consisting of a rectangular steel box, steel spring, and an elastomeric isolation element, with a neoprene or fiberglass construction.

4. Design: The elements shall be designed for approximately 1/4 inch deflection and loaded so that deflection does not exceed 15 percent of the free height of the element.

2.3 BASES

A. Base Specification No. 2

1. Acceptable Manufacturer: Kinetics Noise Control Model CIB, or Amber/Booth, Vibration Mountings & Control, Mason Industries, Vibration Eliminator Co.

2. Type: Concrete inertia base.

3. Description: Base shall consist of a perimeter steel pouring form with reinforcing bars welded in place, bolting templates with anchor bolts and height saving brackets for side mounting of spring isolators.

4. Design: Perimeter steel members shall have a minimum depth of 1/12 of the longest span, but not less than 6 inches deep. Base shall be sized with a minimum overlap of 4 inches around base of equipment and, in the case of belt driven equipment, 4 inches beyond end of drive shaft. Bases for pumps shall be sized to support suction elbow of end suction pumps and both suction and discharge elbows of horizontal split case pumps. Bases shall be T-shaped where necessary to conserve space.

B. Base Specification No. 3

1. Acceptable Manufacturer: Kinetics Noise Control Model KSR, or Amber/Booth, Vibration Mountings & Controls, Mason Industries, Vibration Eliminator Co.

2. Type: Curb rail isolator.

3. Description: Isolator shall consist of a prefabricated extruded aluminum or a formed galvanized steel rail system, incorporating 1 inch deflection freestanding stable springs for vibration isolation, and a continuous air and water seal.

4. Construction: Rail sections shall include integral slot anchoring springs to the bottom section, but allow horizontal adjustment. Spring elements shall meet specified characteristics of spring isolators, specified herein, and shall be selected and located to maintain a level rail assembly and uniform spring deflection of 1 inch after equipment is installed. A continuous, integral, gravity, water seal and foam or neoprene air seal shall be incorporated into rail sections, allowing no metal contact between top and bottom sections.

5. Installation: Curb isolator assembly may be a one piece unitized assembly or may be provided in multiple sections, designed to fit the base of rooftop equipment and associated roof curb. Curb isolator shall have mitered corners with an integral alignment and connection facility for accurate joining of side and end assemblies. Curb isolators



shall be field calked in accordance with instructions furnished by curb isolator manufacturer.

PART 3 - EXECUTION

3.1 SYSTEM DESIGN

A. Vibration isolation equipment manufacturer shall be responsible for proper selection of spring rates to accomplish the specified minimum static deflections for all spring and pad type isolators, based on weight distribution of equipment to be isolated.

B. Vibration isolation equipment manufacturer shall be responsible for structural design ofconcrete inertia bases to support mechanical equipment specified herein.

C. Minimum spring deflections shall be selected in accordance with latest ASHRAE Systems Handbook, unless otherwise indicated on Drawings.

3.2 APPLICATION

A. Vibration isolators and bases shall be installed in accordance with the following schedule:

VIBRATION ISOLATOR AND BASE SCHEDULE

Application Isolator Spec. No. Base Spec. No.

Condenser-Compressor Unit 3 or 4 Not Required

Air Handling Unit, Roof Mtd. * Not Required Not Required

Pump, Base-mounted 1 2

Piping, Where Specified 5 n/a

Rooftop Unit HP-RTU1 n/a 3

* Isolators are not required on air handlers with manufacturer furnished vibration isolation in motor/fan sections. Confirm with Engineer.

B. Provide hanger isolators for piping over 1 inch OD located in mechanical equipment rooms, and for a minimum of 50 feet or 100 pipe diameters, whichever is greater, from connection to vibration isolated equipment.

C. Provide hanger isolators for ductwork located in mechanical equipment rooms, and for a minimum of 50 feet from connection to vibration isolated air moving equipment.

3.3 INSTALLATION

A. Installation of sound and vibration control equipment and materials shall be as indicated on Drawings and accomplished in accordance with the manufacturer's written instructions.



B. Rigid connections shall not exist between equipment and building structure that will degrade the sound and vibration control system(s) specified herein.

C. Sound and vibration control equipment and materials manufacturer, or his qualified representative, shall be responsible for providing such supervision as may be necessary to assure correct installation and adjustment of the sound and vibration control system. Upon completion of equipment installation and after the system is placed into operation, the manufacturer, or his representative, shall make a final inspection and submit a report to Construction Manager in writing, certifying the correctness of the installation and compliance with Drawings and Specifications.

D. Piping and ductwork to be vibration isolated shall freely pass through walls and floors without rigid connections. Penetration points shall be sleeved or otherwise formed to allow passage of piping or ductwork, and maintain a minimum of 3/4 inch and a maximum of 1-1/4 inch clearance around the outside surfaces. Refer to Section 230505 for procedures in sealing this annular space.



HVAC SEISMIC RESTRAINT 230545 - 1

SECTION 230545 – HVAC SEISMIC RESTRAINT

PART 1 - GENERAL

1.1 WORK INCLUDED

A. The Work of this section shall consist of the calculations, labor, materials, and equipment necessary for installation of seismic restraint for HVAC components and systems as specified herein.

1.2 SUBMITTALS

A. Product Data

1. Catalog cuts, or data sheets on vibration isolators and specific restraints detailing compliance with the specification.

2. Detailed schedules of flexible and rigidly mounted equipment, showing vibration isolators and seismic restraints by referencing numbered descriptive drawings.

B. Shop Drawings

1. Provide all details of suspension and support for ceiling hung equipment.

2. Where walls, floors, slabs or supplementary steel work are used for seismic restraint locations, details of acceptable attachment methods for ducts and pipe shall be included and approved before the condition is accepted for installation. Restraint manufacturers' submittals shall include spacing, static loads and seismic loads at all attachment and support points.

3. Provide specific details of seismic restraints and anchors; include number, size and locations for each piece of equipment.

C. Seismic Certification and Analysis

1. Seismic restraint calculations shall be provided by manufacturer for all connections of equipment to the structure. Calculations shall be stamped by a registered professional engineer with at least five years of seismic design experience, licensed in the state of the job location.

2. All restraining devices shall have a preapproval number from California OSHPD or some other recognized government agency showing maximum restraint ratings. Preapprovals based on independent testing are preferred to preapprovals based on calculations. Where preapproved devices are not available, submittals based on independent testing are preferred. Calculations (including the combining of tensile and shear loadings) to support seismic restraint designs must be stamped by a registered professional engineer with at least five years of seismic design experience and licensed in the state of the job location. Testing and calculations must include both shear and tensile loads as well as one test or analysis at 45 degrees to the weakest node.



3. Analysis must indicate calculated dead loads, static seismic loads and capacity of materials utilized for connections to equipment and structure. Analysis must detail anchoring methods, bolt diameter, embedment and/or welded length. All seismic restraint devices shall be designed to accept, without failure, the forces detailed in Article 2.1 acting through the equipment center of gravity. Overturning moments may exceed forces at ground level.

PART 2 - PRODUCTS

2.1 DESIGN CRITERIA

A. General

1. It is the intent of this specification to keep all mechanical and electrical building system components in place during a seismic event.

2. This specification is considered to be minimum requirements for seismic consideration and is not intended as a substitute for legislated, more stringent, national, state or local construction requirements (i.e. California Title 24, California OSHPD, Canadian Building Codes, or other requirements).

3. Any variance or non-compliance with these specification requirements shall be corrected by Contractor in an approved manner.

4. Seismic restraints shall be designed in accordance with seismic force levels as described below.

5. The work in this section includes, but is not limited to the following:a. Seismic restraints for isolated equipment.b. Seismic restraints for non-isolated equipment.c. Certification of seismic restraint designs and installation supervision.d. Certification of seismic attachment of housekeeping pads.

B. Definitions

1. Life Safety Systems:a. All systems involving fire dampers.

2. Positive Attachmenta. A positive attachment is defined as a cast-in anchor, a drill-in wedge anchor, a

double sided beam clamp loaded perpendicular to a beam, or a welded or bolted connection to structure. Single sided "C" type beam clamps for support rods of overhead piping, ductwork, or any other equipment are not acceptable on this project as seismic anchor points.

3. Transverse Bracinga. Restraint(s) applied to limit motion perpendicular to the centerline of the pipe or

duct.

4. Longitudinal Bracinga. Restraint(s) applied to limit motion parallel to the centerline of the pipe or duct.

5. Seismic Force Levels



a. Force levels used on this project shall be in accordance with the most recent edition of the International Building Code.

2.2 RESTRAINTS

A. Seismic Restraints for Piping

1. Seismically restrain all piping as described below. Use Mason type SCB cables if isolated. SCB or SSB restraints may be used on un-isolated piping.a. Piping located in mechanical equipment rooms that is 1-1/4 inches I.D. and larger.b. All other piping 2-1/2 inches diameter and larger.

2. Transverse piping restraints shall be at 40 feet maximum spacing for all pipe sizes, except where lesser spacing is required to limit anchorage loads.

3. Longitudinal restraints shall be at 80 feet maximum spacing for all pipe sizes, except where lesser spacing is required to limit anchorage loads.

4. Where thermal expansion is a consideration, guides and anchors may be used as transverse and longitudinal restraints provided they have a capacity equal to or greater than the restraint loads in addition to the loads induced by expansion or contraction.

5. For fuel oil and all gas piping transverse restraints must be at 20 feet maximum and longitudinal restraints at 40 feet maximum spacing.

6. Transverse restraint for one pipe section may also act as a longitudinal restraint for a pipe section of the same size connected perpendicular to it if the restraint is installed within 24 inches of the elbow or tee or combined stresses are within allowable limits at longer distances.

7. Hold down clamps must be used to attach pipe to all trapeze members before applying restraints in a manner similar to clevis supports.

8. Branch lines shall not be used to restrain main lines.

B. Seismic Restraints for Ductwork

1. Seismically restrain all duct work with Mason type SCB or SSB restraints as listed below:a. Restrain rectangular ducts with cross sectional areas of 6 square feet and larger.b. Restrain round ducts with diameters of 28 inches and larger.c. Restrain flat oval ducts the same as rectangular ducts of the same nominal size.

2. Transverse restraints shall occur at 30 feet intervals or at both ends of the duct run if less than the specified interval. Transverse restraints shall be installed at each duct turn and at each end of a duct run.

3. Longitudinal restraints shall occur at 60 feet intervals with at least one restraint per duct run. Transverse restraints for one duct section may also act as a longitudinal restraint for a duct section connected perpendicular to it if the restraints are installed within 4 feet of the intersection of the ducts and if the restraints are sized for the larger duct.

4. The ductwork must be reinforced at the restraint locations. Reinforcement shall consist of an additional angle on top of the ductwork that is attached to the support hanger rods. Ductwork shall be attached to both upper angle and lower trapeze.



5. A group of ducts may be combined in a larger frame so that the combined weights and dimensions of the ducts are less than or equal to the maximum weight and dimensions of the duct for which bracing details are selected.

6. Walls, including gypsum board non-bearing partitions, which have ducts running through them may replace a typical transverse brace. Provide channel framing around ducts and solid blocking between the duct and frame.

C. Seismic Restraint Exclusions

1. Pipinga. Piping in mechanical rooms less than 1-1/4 inches inside diameter.b. All other piping less than 2-1/2 inches inside diameter.c. All piping suspended by individual hangers 12 inches or less as measured from the

top of the pipe to the bottom of the support where the hanger is attached. However, if the 12 inch limit is exceeded by any hanger in the run, seismic bracing is required for the entire run. The 12 inch exemption applies for trapeze supported systems if the top of each item supported by the trapeze qualifies.

2. Ductworka. Rectangular ducts that are less than 6 square feet in cross sectional area.b. Round duct less than 28 inches in diameter.c. Oval ducts that are less than 6 square feet in cross sectional area based on nominal

size.d. All duct suspended by hangers 12 inches or less in length as measured from the top

of the duct to the point of attachment to the structure. Hangers must be attached within 2 inches of the top of the duct with a minimum of two #10 sheet metal screws. If the 12 inch limit is exceeded by any hanger in the run, seismic bracing is required for the entire run.

3. Suspended Equipmenta. VAV boxes and fan-powered equipment weighing less than 50 pounds and rigidly

connected to the supply side of the duct system and supported with a minimum of 4 hanger rods.

PART 3 - EXECUTION

3.1 INSTALLATION

A. Seismic restraint systems shall be installed and adjusted in accordance with manufacturer's written instructions and all certified submittal data.

B. Installation of seismic restraints shall not cause any change of position of equipment, piping or duct work resulting in stresses or misalignment.

C. No rigid connections between equipment and the building structure shall be made that degrades the seismic restraint systems specified herein.

D. Coordinate work with other trades to avoid rigid contact with the building.



E. Any conflicts with other trades which will result in rigid contact with equipment or piping due to inadequate space or other unforeseen conditions should be brought to the Construction Manager’s attention prior to installation. Corrective work necessitated by conflicts after installation shall be at the responsible contractor’s expense.

F. Overstressing of the building structure shall not occur because of overhead support of equipment. Contractor shall submit loads to the structural engineer of record for approval. Generally, bracing may occur from:

1. Flanges of structural beams.

2. Upper truss cords in bar joist construction.

3. Cast in place inserts or wedge type drill-in concrete anchors.

G. Locate seismic restraint devices for ease of inspection and adjustment.

H. Under no circumstances shall piping or ductwork be suspended from one another or physically contact one another.

I. Install piping and ductwork in a manner that will allow equipment to float freely on isolation devices. Piping and ductwork shall not strain or force the device out of alignment.

J. Provide supervision by the seismic restraint manufacturer's representative to ensure correct installation and adjustment of the isolators and restraints.

K. Certification

1. Provide seismic restraint manufacturer’s certification upon completion of the installation when systems are operating, and all adjustments completed in accordance with contract.



HVAC INSULATION 230710 - 1

SECTION 230710 – HVAC INSULATION

PART 1 - GENERAL

1.1 WORK INCLUDED

A. The Work of this Section shall consist of the labor, materials and equipment required for insulating HVAC piping, ductwork and equipment.

1.2 SUBMITTALS


1. Insulation Materials, including application thicknesses

2. Sealants, Adhesives, Coatings

3. Removable Insulation Covers

4. Self-adhering Waterproofing Membrane

PART 2 - PRODUCTS

2.1 FIBERGLASS PIPE INSULATION SPECIFICATION NO. 1

A. Acceptable Manufacturer: Johns Manville Micro-Lok AP-T Plus (indoor) Manville Micro-Lok w/Zeston 2000 PVC (outdoor), or Owens Corning Fiberglas SSLII/ASJ (indoor) Owens Corning Fiberglas SSLII/ASJ w/ Insul Coustic Metal Clad (outdoor).

B. Material: Fiberglass pipe insulation with all purpose vapor barrier jacket for indoor installations. For outdoor installations, insulation jacket shall be 20 mil PVC or 0.016 inch polished aluminum.

C. Properties

1. Maximum K Factor: 0.23 at 75 degrees F. mean.

2. Temperature Range: 0 degrees F. to 850 degrees F.

3. Fire Hazard: FHC 25/50 per ASTM E-84 and UL 723.

4. For use on pipe sizes 1/2 inch to 12 inches.

D. Seams and Joints: Self-sealing (pressure sensitive) lap seams and matching butt strips.

E. Fittings

1. Fiberglass batt inserts with premolded PVC jacket:a. Acceptable Manufacturer: Johns Manville Zeston 2000 PVC, or Foster Speed-

Line, Proto.



b. Properties: 0.28 max. K at 75 degrees F. mean, 0 degrees F. to 450 degrees F. temperature range, FHC 25/50 fire hazard per ASTM E-84.

2. Fitting insulation shall be same thickness as adjacent insulation.

2.2 FLEXIBLE ELASTOMERIC PIPE INSULATION SPECIFICATION NO. 2

A. Acceptable Manufacturer: Armacell AP Armaflex w/520 BLV Adhesive, or Rubatex.

B. Material: Flexible elastomeric thermal pipe insulation. Black in color.

C. Properties

1. Maximum K Factor: 0.27 at 75 degrees F.

2. Compliance: ASTM E84, 25 flame/50 smoke.

3. Temperature Range: Minus 70 degrees F. to 220 degrees F.

4. For use on pipe sizes: 3/8 inch to 6 inch.

D. Fittings, Joints: Mitered cut, same thickness as adjacent insulation.

E. Adhesive: Toluene free, low VOC.

2.3 FIBERGLASS DUCT WRAP INSULATION SPECIFICATION NO. 5

A. Acceptable Manufacturer: Johns Manville Microlite, or Certain-Teed Standard Duct Wrap, Owens-Corning Fiberglas All-Service Duct Wrap, Knauf.

B. Material: Exterior fiberglass duct insulation with foil scrim kraft laminated (FSKL) facing.

C. Properties


2. Density: 1.0 pcf or 1.5 pcf.

3. Temperature Rating: 250 degrees F. (maximum)

4. NFPA Requirements: Bulletins No. 90A and 90B.


D. Adhesive for Duct Insulation Attachment

1. Acceptable Manufacturer: Foster Stic-Saf 85-15 or Spark-Fas 85 20.

E. Tape for Sealing Duct Insulation Butt Joints, 2 inches Wide

1. Acceptable Manufacturer: Elgen Air-Tite EDT-2.

2.4 FLEXIBLE ELASTOMERIC SHEET/ROLL INSULATION SPECIFICATION NO. 6

A. Acceptable Manufacturer: Armstrong AP Armaflex w/520 Adhesive, or Rubatex.



B. Material: Exterior flexible elastomeric thermal sheet or roll insulation. Black in color.

C. Properties



3. Temperature Rating: Minus 70 degrees F. to 220 degrees F.

2.5 FIBERGLASS BOARD/SHEET INSULATION SPECIFICATION NO. 8

A. Acceptable Manufacturer: Johns Manville 800 Series, Spin-Glas, or Owens-Corning 700 Series Fiberglas, Certain-Teed CB-600, Knauf.

B. Material: Flexible or non-flexible fiberglass board or sheet with all-purpose vapor barrier jacket. Insulation installed outdoors on ductwork shall be tapered on top of ductwork and wrapped and sealed with white EPDM.

C. Properties


2. Density: 6 pcf.

3. Temperature Rating: 0 degrees F. to 450 degrees F.


2.6 SELF-ADHERING WATERPROOFING MEMBRANE

A. Acceptable Manufacturer: Venture Tape VentureClad 1577CW, MFM Building Products FlexClad-400, or as approved.

B. Application: Ductwork installed outdoors where indicated on Drawings.

C. Description: Prefabricated, multi-layered, self-adhering, sheet-type waterproofing membrane.

D. Water Vapor Permeability: ASTM E 96, 0 perms.

E. Finish: Textured white.

F. Warranty: 10 years limited warranty.

PART 3 - EXECUTION

3.1 APPLICATION

A. Insulation shall be installed in accordance with the following insulation schedule(s). (Where more than one insulation type is scheduled, Contractor shall have the option of choosing from types listed.)



PIPE INSULATION SCHEDULE

Service

Temp.RangeDeg. F

Insul.Spec.No.

Minimum Pipe Insulation Thickness

to1-1/2" 2"

2-1/2"to 4"

5" &larger

Make-up Water: 50-65 12

1/21/2

1/21/2

1/21/2

1/21/2

Steam & Condensate Return

• 306 1 2-1/2 3 3 3-1/2

• 305 1 2 3 3 3

Hot Water 100-160 1 1-1/2 2 2 2

Chilled Water 40-55 1 1-1/2 1-1/2 1-1/2 1-1/2

Refrig.Suction

Below 40 12

1-1/21-1/2

1-1/21-1/2

1-1/21-1/2

1-1/2N/A

Condensate Drainage

35-70 2 1/2 1/2 1/2 1

DUCT INSULATION SCHEDULE

Duct Type/Service Insulation Spec. No. Thickness, Inches

Rectangular Sheet Metal, installed within building thermal envelope:

Supply Air 5 1-1/2

Supply Air – in Vestibule 163 8 2

Return Air 5 1-1/2

Exhaust Air Not Required ---

Relief Air Not Required ---

Flat Oval or Round Sheet Metal, installed within building thermal envelope:

Supply Air 5 1-1/2

Rectangular Sheet Metal, installed outdoors:

Supply Air 8 2

Return Air 8 2

Exhaust Air Not Required ---



EQUIPMENT INSULATION SCHEDULE

Equipment Insulation Spec. No. Thickness, Inches

Air Separator, Hot 8 2

Flash Tanks & Condensate Receiver

8 2

Expansion Tank, Hot Water 8 2

Expansion Tank, Chilled Water 6 6

Chilled Water Pump Volute 6 1

3.2 INSTALLATION

A. General

1. Surface areas of all pipe and ducts to be insulated shall be clean and dry. Insulation shall not be installed until all tests and inspections of the specific system(s) are complete.

2. All pipe and duct insulation shall be continuous through wall and ceiling/floor penetrations except where specific sealing requirements are specified, i.e. fire-rated separations. Where pipes pass through fire-rated floors, walls, or partitions, the use of a UL approved system for through penetrations is required. The annular space around the pipes shall be packed with mineral wool or other noncombustible material and sealed at each exposed edge to maintain the rating of the system in accordance with the through penetration sealant manufacturer's recommendations.

3. Insulate all components in piping systems, including valve bodies, inline air separators, hangers, guides, anchors, and pump housings. Do not insulate traps, strainers, flexible connectors, or expansion compensators. Maintain access to all servicing points and nameplate data. Edges of vapor barrier insulation at valve stems, instrument wells, unions and other raw edges shall be adequately sealed to prevent moisture from penetrating the insulation.

4. Insulation on all cold surfaces shall provide a continuous unbroken vapor seal. Hangers, supports, anchors, etc., that are secured directly to cold surfaces shall be adequately insulated and vapor sealed to prevent condensation.

5. Adhesives, mastics, sealers, and coatings shall be applied at manufacturer's required ambient conditions and recommended minimum coverages.

B. Insulation Protective Shields

1. Insulation protection shields fabricated from galvanized steel shall be installed at all pipe hangers and supports. Shields shall span an arc of 180 degrees.

2. Provide shield lengths and thicknesses as outlined in the latest version of the International Mechanical Code or MSS-SP69. Minimum shield lengths shall be as follows:



Pipe Sizes,Inches

Shield Length,Inches

1-1/2 to 2-1/2 10

3 to 6 12

8 to 10 16

12 and over 22

3. Rigid cellular glass insulation, capable of resisting the crushing effect of the hydraulically loaded piping, shall be placed under each shield. Jacketing material shall be wrapped around rigid insulation and adjacent top and butt sections to maintain the jacketing continuity.

4. Stainless steel shields shall be installed on insulated piping located on the roof.

C. Removable Insulation Covers

1. Equipment shall be insulated to the fullest extent possible. Removable insulation shall be provided for items that will require insulation removal for periodic maintenance or inspection, including the following: a. Steam: Pressure reducing valves, steam separators.

2. Provide removable insulation sections to cover parts of pumps that must be accessed periodically for maintenance (i.e. strainers, grease fittings, vent/drain plugs or valves, P/T ports) without damaging insulation or compromising vapor barrier. Include metal vessel covers, fasteners, flanges, frames and accessories. Ensure that the bearing assembly grease fittings remain accessible and visible, extending as necessary beyond insulation thickness. Any vent slots on the sides and bottom of the bearing assembly shall remain uncovered and completely open. Insulation on pump systems operating below ambient dew point (such as chilled water) shall be insulated with closed cell foam with all joints and penetrations sealed to maintain vapor barrier.

D. Fiberglass Pipe Insulation

1. All piping shall be cleaned of debris prior to installation of insulation and components. Joints shall be butted firmly together. Longitudinal laps and butt strips shall be securely fastened as recommended by the manufacturer.

2. Fittings, insulated with fiberglass blanket and PVC jacket shall be installed in accordance with insulation manufacturer's instructions. All butt joints between longitudinal pipe insulation and fittings shall be taped.

E. Duct Wrap Insulation

1. All insulation shall be applied with edges tightly butted. Insulation shall be secured with adhesive which shall be applied to entire metal surfaces so that insulation conforms to duct surfaces uniformly and firmly.

F. Fiberglass Board/Sheet Insulation

1. Insulation board/sheet shall be installed by means of weld pins or stick clips. Pins/clips shall be located a maximum of 3 inches from all leading edges and a minimum of 12 inches on center for remainder of surface area.



2. Removable heads, cover plates, manholes, etc., shall be separately covered with unfaced board/sheet with 1/2 inch insulating cement finish, leaving bolts and nuts accessible. Leave nameplates visible.

G. Self-adhering Waterproofing Membrane

1. Tape gaps between rigid insulation boards and install metal reinforcing strips on insulation corners to maintain shape before installing membrane.

2. Prepare surfaces in accordance with manufacturer’s recommendations.

3. Apply waterproofing membrane in accordance with manufacturer’s instructions using spray adhesive and pins for application on the bottom of the duct.

4. Apply minimum side and end laps as recommended.



VARIABLE FREQUENCY DRIVES 231020 - 1

SECTION 231020 – VARIABLE FREQUENCY DRIVES

PART 1 - GENERAL

1.1 WORK INCLUDED

A. The Work of this Section shall consist of the labor, materials, and equipment required for installation of variable frequency drives for air handling units and pumps.

B. Variable frequency drives shall serve as starter, circuit breaker, motor overload protection, indicator panel, remote signal output and power factor correction for the specific mechanical equipment.

1.2 SUBMITTALS

A. Submit variable frequency drives for approval in accordance with specified submittal procedures. Include wiring diagrams, load characteristics, connections and mountings with submittal data.

PART 2 - PRODUCTS

2.1 VARIABLE FREQUENCY DRIVES

A. Acceptable Manufacturers: ABB, or Motor Tech.

B. Substitutions: None.

C. General: The drive shall accept three phase input.

1. Suitable for operation on standard NEMA design B motors. Drive shall have a diode bridge rectifier on the input to minimize generation of electrical noise back into the line and provide near unity power factor.

2. Drive horsepower rating shall range from 3 HP to 100 HP with a speed range of 3 to 67, 80 or 120 Hz selectable by rotary switch. Drive shall be capable of an overload of 120 percent for 60 seconds.

3. Output devices shall be transistors, IGBT (insulated gate bipolar transistors) for reduced motor noise.

4. UL listed.

D. Environment Conditions

1. Drive Enclosure Type: NEMA 1 (indoor) or NEMA 3R (outdoor); as required for the application. The enclosure shall provide protection of all internal components for the application and environmental conditions at the installed location.



2. Space heaters, with normally closed (NC) auxiliary contacts, to mitigate condensation in NEMA Type 3R enclosures installed outdoors or in unconditioned interior spaces subject to humidity and temperature swings outside of ambient condition ratings of variable frequency drive.

3. Drive shall be capable of operation under any combination of the following conditions without mechanical or electrical damage.a. Ambient Temperature: Minus 10 to 40 degrees C (14 to 104 degrees F), minus 10

to 50 degrees C (14 to 122 degrees F) without cover.b. Relative Humidity: Less than 90 percent non-condensing.c. Altitude: Less than 1,000m (3300 ft.) above sea level.d. Vibration: Less than 0.5 G for 20 to 50 Hz less than 0.1 mm (peak to peak) for 50

to 100 Hz.

E. Control

1. Control System: Sinusoidal pulse width modulated voltage waveform.

2. Output Voltage: 3 phase 380 to 460 volt.

3. Frequency Accuracy: Plus or minus 0.5 percent of maximum frequency.

4. Setting Frequency: 3 to 67 Hz internally selectable to 120 Range: Hz.

5. Volts/Hertz Ratio: 3 to 60 Hz V/Hz dependent on load (automatic) 60 Hz and up, voltage constant.

6. Operation frequency 0 to 67 Hz, internally selectable to 120 cy Range: Hz.

7. Overload Capacity: 120 percent for 60 seconds. A microprocessor shall monitor the load on the drive and in the event of an overload, it shall, based on the calculation of a true inverse time overload characteristic, either trip out or phase back the voltage and speed as selected by an internal jumper.

F. Digital Readout and Monitor: Four (4) each, seven (7) segment LED's shall display OFF, LOW SPEED, FREQUENCY and FAULT. Front accessible pushbutton shall permit user to monitor percent current, percent voltage, frequency, acceleration and deceleration time, input bias, input gain, upper and lower limit. Drive readout shall also provide drive status and protective circuits status.

G. Protection: Variable frequency drive system shall include a diode bridge rectifier, capacitor filter, and transistorized invertor section. Base driver signals to control firing of the power transistors shall be designed with optically coupled isolators for maximum protection of the control circuits from high voltage and noise. Output shall be a sinusoidal waveform, pulse width modulated, voltage waveform for reduced harmonic heating in the motor.

1. System protection, as a minimum, shall provide the following:a. Frequency stall (230 percent causes acceleration stop, over 125 percent causes

phase-back control).b. Current limit, 140 percent.c. Overcurrent, 180 percent IET.d. Short circuit, phase-to-phase or phase to ground (trips fault).



e. Overvoltage: High DC bus voltage (trips fault)

230V Series - 400 VDC460V Series - 800 VDC460V H Series - 760 VDC

f. Under-voltage, 85 percent below line voltage (indicates fault).g. Component burnout, DC bus fuse protection and/or 3 phase input fusing.h. Digital Indication of Fault: When the drive trips out on a fault, the drive shall

activate a fault relay with normally open and normally closed contacts available to the user and an LED display shall indicate the reason for the trip as follows:

OC: Overcurrent trip at 180 percent.OCA: Internal component short circuit.OCL: Output short circuit.OL: Overload (when soft stall not selected).OP: Overvoltage on DC bus.OPS: Overvoltage on input.UP: Under-voltage.OH: Overheat or closing of terminals OH.

EF: Ground fault (earth fault).

i. Auto restart shall be a standard feature of the drive as follows:1) Auto restart enabled or disabled by jumper selection.2) If auto restart is selected the microprocessor shall determine, in the event of

a fault, if a restart should be attempted. A restart shall be attempted under the following conditions:

Under-voltage (UP) - every time as soon as voltage returns to a safe level. Fault relay is not activated (not jumper selectable).

Input Over-voltage (OPS) and DC Bus Overvoltage (OP) - every time if voltage returns to normal within 30 seconds, fault relay is not activated and reset for 30 seconds (jumper selectable).

Overcurrent (OC) - drive delays 1 second and attempts a restart. If drive trips a second time, it delays 2 seconds and attempts a second restart. Overall, five attempts are made after successive delays of 1, 2, 4, 8 and 16 seconds. If the restart fails after the fifth attempt, the drive will trip out and activate the fault relay (jumper selectable).

3) A restart shall not be attempted for any other type of fault and the drive shall trip out immediately, activate the fault relay and make the appropriate indication on the display.

j. In the event of a fault trip the microprocessor shall save the status of the drive at the time of the fault and make that information available on the LED display until the drive is reset or the control power is removed.

k. An undervoltage condition of less than 30ms duration shall not affect drive operation. If main power falls below 85 percent of rated voltage for longer than 30ms while control power is retained the drive shall forcibly decelerate the load in an attempt to force a higher bus voltage through regeneration. This feature, depending on the inertial of the load, shall allow the drive to "ride through" a longer condition.



l. The following shall be mounted by drive manufacturer:1) Incoming motor circuit protector and thermal overload.2) AC Line Reactor: For reduction of harmonic content, power factor

improvement and line transient suppression.3) Provide manual bypass switch which allows motor operation during service

to variable speed drives.4) Integral disconnect switch.

m. Operational Functions:1) Acceleration and deceleration time independently adjustable from 0.1 to

30/1 to 300 seconds (selectable ranges).2) Signal follower 0 to 5VDC, 0 to 10VDC, 4 to 20ma, 0 to 20ma, 1 to 5VDC,

or 0 to 135 ohms selectable by jumper. An increasing input signal can command increasing or decreasing frequency as required by the application.

3) Ramp-to-stop or coast-to-stop for normal operation (coast-to-stop on fault).4) Volts/Hertz patterns selectable by rotary switch.5) Upper and lower frequency limit adjustments shall be available. When the

drive reaches one of the limits it shall activate an open collector signal available to the user. A dry contact signal shall be available as an option.

H. Equipment shall be provided with a terminal strip set up to have control input and output function interaction. Terminal strip shall have the connections to accept safety input, control signal input, run signal input, motor disconnect input, and fault signal output.

PART 3 - EXECUTION

3.1 INSTALLATION

A. Install variable frequency drives in accordance with manufacturer's recommendations. Submit manufacturer's printed installation instructions with operating and maintenance data at completion of Work.

B. Wiring of variable frequency drives shall be in accordance with Division 26 Specifications and supervised by an authorized factory representative. Drive shall be field commissioned by a factory trained and employed service technician.



HVAC PUMPS 232110 - 1

SECTION 232110 – HVAC PUMPS

PART 1 - GENERAL

1.1 WORK INCLUDED

A. The Work of this Section shall consist of the labor, materials and equipment required for the installation of pumps and pump specialties.


A. Section 230505, HVAC Basic Materials: Equipment nameplates and motors

B. Section 230535, HVAC Sound and Vibration Control: Vibration isolators and bases.

C. Section 231020, Variable Frequency Drives: VFDs.

D. Section 239010, Building Automation System: Controls.

E. Section 239510, Testing and Balancing of HVAC System: Hydronic system balancing.

1.3 SUBMITTALS


1. Pumps

2. Pump Specialties


A. Source Limitations: Obtain hydronic pumps of same type from a single manufacturer.

B. Electrical Components, Devices, and Accessories: Listed and labeled as defined in NFPA 70, Article 100, by a testing agency acceptable to authorities having jurisdiction, and marked for intended use.

C. UL Compliance: Comply with UL 778 for motor-operated water pumps.

1.5 DELIVERY, STORAGE, AND HANDLING

A. Manufacturer's Preparation for Shipping: Clean flanges and exposed machined metal surfaces and treat with anticorrosion compound after assembly and testing. Protect flanges, pipe openings, and nozzles with wooden flange covers or with screwed-in plugs.

B. Store pumps in dry location.



C. Retain protective covers for flanges and protective coatings during storage.

D. Protect bearings and couplings against damage from sand, grit, and other foreign matter.

E. Comply with pump manufacturer's written rigging instructions.

PART 2 - PRODUCTS

2.1 BASE MOUNTED PUMP

A. Acceptable Manufacturer: Bell & Gossett.


C. Construction:

1. Casing: Cast iron.

2. Shaft: Steel.

3. Shaft Sleeve: Bronze or copper, replaceable, covering the wetted area of the shaft under the seal.

4. Impeller: Cast bronze, enclosed type, dynamically balanced, keyed to shaft and secured by a locking capscrew.

5. Base: Structural steel or fabricated steel channel.

6. Pump: Cast iron, single stage centrifugal end suction.

7. Pump Seal: Standard, single mechanical seal with carbon seal ring and remite seat.

8. Bearing Frame: Cast iron, fitted with regreasable ball bearings equivalent to electric motor bearing standards, for quiet operation.

9. Motor: Refer to Section 230505.

10. Pump and motor mounted on common structural steel base.

11. Pump internals capable of being serviced without disturbing piping connections or motor.

12. Factory tested, cleaned and painted.

13. Guard for couplings and rotating components.

2.2 INLINE PUMP

A. Acceptable Manufacturer: Bell & Gossett, or Taco, Armstrong Pump.

B. Type: Centrifugal, single stage.

C. Materials

1. Casing: Cast iron.

2. Shaft: Steel.



3. Shaft Sleeve: Brass or copper furnished under the wetted area of the mechanical seal.

4. Impeller: Brass or bronze enclosed type, hydraulically and dynamically balanced, keyed to shaft, and secured by a locking capscrew or nut.

5. Pump: Cast iron, bronze fitted, single stage centrifugal with vertical split case, rated for a minimum of 175 psi working pressure, equipped with gauge parts and suitable for operation at 225 degrees F.

6. Pump Seal: Mechanical seal with ceramic seal seat and carbon seal ring.

7. Bearing Frame: Cast iron, fitted with oil lubricated bronze bearings.

8. Motor: Refer to Section 230505.

9. Pump internals capable of being serviced without disturbing piping connections.

10. Factory tested, cleaned, and painted.

2.3 PUMP SPECIALTIES

A. Suction Diffuser

1. Acceptable Manufacturer: Bell & Gossett, or Taco, Armstrong.

2. Type: Angle type body with inlet vanes and combination diffuser-strainer-orifice cylinder.

3. Temporary Strainer: Disposable.

4. Permanent Strainer: With a free area no less than five times the suction area of the pump.

5. Support: Adjustable foot to support weight of unit and piping.

6. Cooling Tower Application: Diffuser shall have stainless steel orifice cylinder.

B. Triple Duty Valve

1. Acceptable Manufacturer: Bell & Gossett, or Armstrong Pump, Mueller Steam Specialty, Metraflex.

2. Working Pressure: 175 psig.

3. Maximum Operating Temperature: 300 degrees F.

4. Construction: a. Body: Cast iron or ductile iron.b. Disc and Seat: Bronze. c. Stem and Spring: Stainless steel.d. Packing: Teflon.e. Flanges: Class 125 ANSI rated for 300 psi working pressure. f. Configuration: Straight or angle pattern. g. Valves: Globe valve and non-slam check valve with spring-loaded disc and

calibrated adjustment to permit regulation of pump discharge flow and shut-off. Valves designed to permit repacking under full line pressure.

h. Brass readout valves equipped with integral EPT check valve for taking differential pressure reading across orifice.



PART 3 - EXECUTION

3.1 INSTALLATION

A. Inline and base mounted pumps shall be installed with suction diffuser, triple duty valves,isolation valves, and gages as detailed on the Drawings.

B. Diagrammatic representation of inline pumps on the Drawings is only for clarification of pump location. Actual positioning of pump in the piping system, orientation of pump and motor, and location of supports for pumps shall be in accordance with pump manufacturer's recommendations.

C. Base mounted pumps shall be provided with vibration isolation as specified in Section 230535.

D. Comply with inline pump manufacturer’s installation instructions for supporting pump to maintain proper shaft alignment.

E. Contractor shall carefully follow the Drawings in laying out and installing his work and he shall not deviate therefrom, except for structural or interior finish interferences, and then only upon Construction Manager's approval.

F. All pumps and accessories shall be carefully inspected for defects in workmanship prior to installation. Any item found unsuitable, cracked, or otherwise defective shall be rejected and removed from the jobsite. All pumps shall have factory applied markings, stampings, or nameplates with sufficient data for identification to determine their conformance with specified requirements.

G. During construction all openings in pumps shall be kept closed except when actual work is being performed on that item. Closures shall be plugs, caps, blind flanges, or other items specifically intended for this purpose. Exercise all necessary care to prevent foreign objects from entering equipment.

H. Provide flanges or unions at all final connections to pumps to facilitate dismantling.



AIR DISTRIBUTION 233010 - 1

SECTION 233010 – AIR DISTRIBUTION

PART 1 - GENERAL

1.1 WORK INCLUDED

A. The Work of this Section shall consist of the labor, materials and equipment required for installation of the air distribution system ductwork, and associated specialties.


A. Section 230505, HVAC Basic Materials: Access doors.

B. Section 230710, HVAC Insulation: Insulation of ductwork.

1.3 SUBMITTALS


1. Single Wall Spiral and Round Ductwork, including fittings

2. Flexible Ductwork

3. Duct Accessories

4. Diffusers, Registers, Grilles

5. Laminar flow diffusers and integrated ceiling grid

6. Louvers

7. Fire Dampers

8. Smoke Dampers

9. Combination Fire/Smoke damper

PART 2 - PRODUCTS

2.1 RIGID METAL DUCTWORK

A. Rigid metal ductwork and plenum chambers shall be fabricated from galvanized sheet steel constructed in accordance with SMACNA, HVAC Duct Construction Standards – Metal and Flexible based on indicated static-pressure class unless otherwise indicated. , and the latest publication of the ASHRAE Equipment Handbook.

1. Transverse Joints: Select joint types and fabricate according to SMACNA's "HVAC Duct Construction Standards - Metal and Flexible," Figure 1-4, "Transverse (Girth) Joints," for static-pressure class, applicable sealing requirements, materials involved,



duct-support intervals, and other provisions in SMACNA's "HVAC Duct Construction Standards - Metal and Flexible."

2. Longitudinal Seams: Select seam types and fabricate according to SMACNA's "HVAC Duct Construction Standards - Metal and Flexible," Figure 1-5, "Longitudinal Seams -Rectangular Ducts," for static-pressure class, applicable sealing requirements, materials involved, duct-support intervals, and other provisions in SMACNA's "HVAC Duct Construction Standards - Metal and Flexible."

3. Elbows, Transitions, Offsets, Branch Connections, and Other Duct Construction: Select types and fabricate according to SMACNA's "HVAC Duct Construction Standards -Metal and Flexible," Chapter 2, "Fittings and Other Construction," for static-pressure class, applicable sealing requirements, materials involved, duct-support intervals, and other provisions in SMACNA's "HVAC Duct Construction Standards - Metal and Flexible."

B. Duct dimensions shown on drawings are net clear inside dimensions.

C. Distance from floor to bottom of ductwork shown on drawings is distance from floor to bottom of sheet metal, excluding joint reinforcements and exterior duct insulation.

D. Changes in duct sizes shall be gradual with a slope of approximately 15 degrees divergence wherever possible; maximum 30 degrees divergence upstream of equipment and 45 degrees divergence downstream.

E. Elbows shall be radius type made with an R/D ratio of 1.5. Square elbows with turning vanes shall be used where shown on Drawings or where space does not permit the foregoing radius.

2.2 SINGLE WALL SPIRAL ROUND METAL DUCTWORK, LOW PRESSURE

A. Acceptable Manufacturer: McGill Airflow, or Semco Mfg., Inc..

B. Low pressure/low velocity round metal ductwork shall be factory fabricated of galvanized steel meeting ASTM A 527 71. Ducts shall be fabricated with spiral lockseam construction. Fittings shall be galvanized steel, shall have a flanged saddle tap or slip joint and shall be produced by the same manufacturer. Metal gages for ducts shall be as follows:

Duct Diameter Duct Gage

3" - 8" 26

9" - 22" 24

23" - 36" 22

37" - 50" 20

2.3 SINGLE WALL SPIRAL ROUND METAL DUCTWORK, HIGH PRESSURE

A. Acceptable Manufacturer: McGill Airflow, or Semco Mfg., Inc.

B. Application: Where indicated on Drawings.



C. High pressure/high velocity round metal ductwork shall be factory fabricated of galvanized steel, meeting ASTM A 527 71. Ducts shall be fabricated with spiral lockseam construction. Fittings shall be galvanized steel, shall have a welded construction, and shall be produced by the same manufacturer. Metal gages for ducts and fittings shall be as follows:

Duct Diameter Duct Gage Fitting Gage

3" - 14" 26 20

15" - 26" 24 20

27" - 36" 22 20

37" - 50" 20 18

2.4 SINGLE WALL SPIRAL FLAT-OVAL METAL DUCTWORK

A. Acceptable Manufacturer: McGill Airflow Corp., or Semco Mfg., Inc.

B. Flat-oval metal ductwork shall be factory fabricated of galvanized steel, meeting ASTM A 527 71. Ducts shall be fabricated with spiral lockseam construction through 20 inch minor axis. Fittings shall be fabricated of galvanized steel with continuous welds, and shall be produced by the same manufacturer. Metal gages for ducts and fittings shall be as follows:

Major Axis Duct Gage Fitting Gage

to 24" incl. 24 20

25" to 48" incl. 22 20 (to 36") 18(to 48")

2.5 FLEXIBLE DUCTWORK, ACOUSTIC

A. Acceptable Manufacturer: Flexmaster Type 8M, Thermaflex M-KE, or as approved.

B. Material: Acoustical round flexible ductwork consisting of helical wound corrugated steel with CPE inner film, exterior fiberglass insulation and reinforced metallized vapor barrier.

C. Properties:

1. Maximum K Factor: 0.20 at 75 degrees F.

2. Temperature Range: Minus 10 degrees F to 250 degrees F

3. Working Pressure: 10 inches w.g. positive, 5 inches w.g. negative thru 16 inches diameter.

4. Listing: UL-181/ETL Class 1 Air Duct

5. Compliances: NFPA 90A and 90B

6. Flame Spread: Less than 25

7. Smoke Developed: Less than 50



D. Acoustical Performance Data: Minimum straight duct insertion loss in dB for 8 inch diameter, 9-10 feet long section at 2500 fpm velocity:

Octave Band Center Frequency, Hz

125 250 500 1000 2000 4000

11 26 32 32 29 17

2.6 DUCT ACCESSORIES

A. Duct Sealant

1. Acceptable Manufacturer: Foster, or Duro Dyne.

2. Duct joints and seams shall be sealed to minimize air leakage.

B. Duct Sealant, High Velocity

1. Acceptable Manufacturer: United McGill tape and sealer.

2. High velocity duct joints and seams shall be sealed with tape as specified herein. Liquid duct sealer shall be applied to male end only of slip type fittings prior to assembly. Single slip fittings shall be secured with sheet metal screws following application of liquid sealer and assembly of joint. Apply liquid sealer to outside of assembled joint in a 2 inch wide band. Wrap a single thickness of polyethylene coated duct tape over wet sealer and allow to set for 24 hours. Flanged joints shall be sealed with either a self adhering neoprene rubber gasket or impregnated felt gasket adhered to flanged joint with duct sealer.

C. Volume Dampers

1. Acceptable Manufacturer: Young Regulator Co. for dampers with smallest dimension 10 inch or less, Louvers & Dampers, Inc. for dampers with smallest dimension 12 inch or more.

2. Opposed blade volume dampers shall be installed where indicated on Drawings. Each dampers shall be equipped with adjustable quadrant regulator and lock. Dampers shall be multiple blade. Single blade damper units will not be permitted. Maximum blade width shall be 10 inch and maximum blade length shall be 42 inch. Longer spans shall consist of multiple damper sections.

3. On externally-insulated ducts, mount quadrant regulators on stand-off brackets to accommodate thickness of insulation.

D. Turning Vanes

1. Turning vanes shall be provided in all square elbows unless specifically noted otherwise. Turning vanes shall be single thickness vane style, with no trailing (flat) edges. Vanes shall be securely fastened to runners. Runners shall be securely fastened to ductwork. For lined ductwork, runners shall be raised hat style to prevent damage to duct liner. Turning vanes greater than 36 inch in length shall be braced at intermediate points with tie rods.

2. All turning vanes shall be fabricated and installed in accordance with SMACNA HVAC Duct Construction Standards.



E. Flexible Duct Connectors

1. Acceptable Manufacturer: Duro Dyne, or Elgen, Ventfabrics.

2. Connector: 24 or 28 gage galvanized steel.

3. Fabric: Woven fiberglass, coated with neoprene. Water proof and airtight. Designed to meet NFPA 701, 90A and 90B.

F. Take-Off Fittings

1. Acceptable Manufacturer: Clevepak Corp., Flexmaster.

2. Take-off connections for use in connecting flexible ductwork to rectangular duct systems shall be straight tap-in type, prefabricated, galvanized steel construction, with damper. Take-off connections shall be same size as flexible duct.

G. Duct Access Doors

1. Acceptable Manufacturer: Cesco Advanced Air.

2. Application: Install in ductwork within working distance of all fire dampers, smoke dampers, motor-operated dampers, and volume dampers to permit inspections and adjustments.

3. Construction: Reinforced with angle iron stiffeners and provided with a continuous edge gasket for airtight fit. Insulated where installed in insulated duct systems.

4. Closure Method: Double cam latch.

2.7 DIFFUSERS, REGISTERS AND GRILLES

A. Ceiling Registers And Grilles, Exhaust, Return

1. Acceptable Manufacturer: Tuttle & Bailey, or Anemostat, Carnes, Krueger, Metalaire, Price Industries, Titus.

2. Construction: Extruded aluminum.

3. Standard Features:a. 1 inch minimum frame width with mitered corners.b. 1/2 inch x 1/2 inch x 1/2 inch cellular grid core.

4. Accessories: Opposed blade damper (register only).

5. Finish: Baked white enamel.

B. Sidewall Registers and Grilles, Exhaust, Return



3. Standard Features:a. 1 inch minimum frame with mitered corners.b. Fixed position horizontal bars at 35 to 45 degree deflection and spaced 3/4 inches

on center.





C. Sidewall and Ceiling Registers And Grilles, Supply



3. Standard Features:a. 1 inch minimum frame with mitered corner.b. Double deflection air foil shaped bars with adjustable horizontal front bars spaced

3/4 inch on center, providing greater than 80 percent free area.



D. Heavy Duty Sidewall Registers And Grilles, Exhaust, Return

1. Acceptable Manufacturer: Tuttle & Bailey, or Carnes, Anemostat, Krueger, Price Industries, Titus.

2. Construction: Steel.

3. Standard Features:a. 1 inch minimum 20 gage welded frame.b. Fixed position, minimum 13 gage horizontal steel bars at approximately 40 degrees

of deflection and spaced 1/2 inch on center.c. Vertical steel support braces spaced maximum 8 inch to 10 inch on center for

reinforced construction.



E. Linear Slot Diffusers, Adjustable

1. Acceptable Manufacturer: Tuttle & Bailey, or Carnes, Air Guide, Anemostat, Krueger, Metalaire, Price Industries, Titus.

2. Construction: Steel.

3. Standard Features:a. 1-1/8 inch frame.b. 3/4 inch wide diffuser slot.c. Adjustable pattern controller.d. Adaptable to continuous installation by hairline butting; utilizing manufacturer's

approved splicing techniques.

4. Accessories:a. Volume damper.b. Distribution plenum.c. Single vane deflector. d. Double vane deflector.




F. Square and Rectangular Diffusers

1. Acceptable Manufacturer: Tuttle & Bailey, or Carnes, Anemostat, Krueger, Metalaire, Price Industries, Titus.


3. Standard Features:a. Overlap (anti smudge) margins.b. Fixed pattern, multiple orifice, flush faced, removable center core.

4. Accessories:a. Adjustable volume damper.b. Diffusing grid.c. Square to round neck adaptor.d. Plaster frame (where required).e. Leveling clips (for suspended ceilings).


G. Ceiling Diffusers, High Performance

1. Acceptable Manufacturer: Titus, or Anemostat, Krueger, Price Industries, Tuttle & Bailey.


3. Standard Features:a. 360 degree air pattern.b. 24 x 24 full face and panel mounted lay in type frames.c. Flush cones.d. Removable inner core.

4. Accessories:a. Adjustable volume damper.b. Sectorizing baffle.


2.8 LAMINAR FLOW DIFFUSERS

A. Acceptable Manufacturer: Precision Air Products, or Multi Vent, Price Industries, Tuttle & Bailey.

B. Construction: Extruded aluminum.

C. Standard Features:

1. Control piston volume control.

2. Perforated diffuser plate constructed of 14 gage aluminum with 16 percent free area.

3. Vertical air pattern.

D. Accessories:

1. Aluminum cartridge and holding frame for acceptance of future HEPA filter.



2. Plaster frame.

3. Finish: Clear anodized.

2.9 INTEGRATED CEILING GRID

A. Laminar flow diffuser manufacturer shall furnish extruded aluminum tee and angle frame assembly suspension system to support laminar diffusers, blank-off panels and light fixtures. Furnish tee 1-1/2 inches wide by 1-7/16 inches high and angles shall be 3/4 inch wide by 1-7/16inches high. Minimum wall thickness of the tees and angles shall be 1/8 inch. Centerline to centerline dimension of each framing section shall be 0.125 inch per lineal foot added to the nominal size of the laminar diffusers.

B. The suspension system shall be factory-welded in sub-assemblies. Where framing sub-assemblies butt together, the adjoining surfaces shall be gasketed and mechanically-fastened with self-tapping screws.

C. Factory punch tees and angles on 6 inch centers for independent suspension from above spaced at a maximum of 2 feet.

D. Furnish 1/8 inch thick closed-cell polyethylene gasket tape to be field installed on the frame assembly to provide seal between diffuser and tee grid; or blank-off panel and tee grid interface;and light and tee grid interface.

E. Ceiling framing system shall be finished to match laminar flow panel diffusers and blank-off panels.

2.10 BLANK-OFF PANELS

A. Blank-off panels to be provided by diffuser manufacturer as component of complete Integrated Ceiling System (ICS). Panel to have solid plate installed within extruded aluminum perimeter frame with mitered corners.

2.11 FIRE DAMPER, PRIMARY

A. Acceptable Manufacturer: Ruskin, or Cesco Products, Prefco Products.

B. Type: Multiple interlocking steel "curtain" damper.

C. Construction: Galvanized steel frame and blades; blades stacking out of air stream; for rectangular damper with smallest dimension 12 inches or less, frame and blades shall be out of air stream. Damper shall be suitable for vertical or horizontal mounting; labeled as a dynamic rated 1 1/2 hour fire damper; constructed in accordance with UL 555.

D. Fusible Link: UL listed 165 degrees F.

E. Wall Sleeve: Contractor's option for manufacturer's accessory wall sleeve or contractor fabricated, in accordance with SMACNA Duct Construction Standards.



F. Compliance: NFPA 90A.

2.12 SMOKE DAMPER


B. Type: Smoke dampers shall be a multiple blade "air control" type UL 555S Class I rateddamper furnished with the actuator specified herein for use with approved smoke detectors.

C. Construction: Galvanized steel frames and blades. Damper shall be suitable for vertical or horizontal mounting; constructed in accordance with UL 555S.

D. Damper Actuator: 120 volt motor factory installed. Damper blades shall be held open by motor and close when electric power is interrupted by a power failure or smoke sensing device. Damper shall reset automatically when power is restored.

E. Compliance: NFPA 90A and NFPA 92A.

2.13 COMBINATION FIRE/SMOKE DAMPER


B. Type: Combination fire/smoke dampers shall be a multiple blade "air control" type UL 555S Class I rated damper furnished with the actuator specified herein for use with approved smoke detectors.

C. Construction: Galvanized steel frames and blades. Damper shall be suitable for vertical or horizontal mounting; labeled as a 1 1/2 hour fire damper, constructed in accordance with UL 555S.

D. Damper Actuator: 120 volt motor factory installed. Damper blades shall be held open by motor and close when electric power is interrupted by a power failure or smoke sensing device. Damper shall reset automatically when power is restored.

E. Fusible Link: UL listed 165 degrees F.

F. Compliance: NFPA 90A and NFPA 92A.

PART 3 - EXECUTION

3.1 INSTALLATION

A. Rigid metal ductwork and associated specialties shall be installed in accordance with SMACNA, HVAC Duct Construction Standards, and the latest publication of the ASHRAE Equipment Handbook. Rigid and flexible ductwork shall be installed in sizes indicated on the Drawings with field supplied rigid metal transitions at connections to equipment duct collars.



B. Protect open ends of ductwork during construction, either stored or installed, with plastic covering.

C. Flexible duct connectors shall be installed on inlet and outlet of each fan and air handling unit.

D. Fire and smoke dampers and fire doors shall be installed in accordance with the International Building Code, SMACNA Fire, Smoke and Radiation Damper Installation Guide for HVAC Systems, and manufacturer’s installation requirements. The UL label shall be visible for inspection from a duct access door which is labeled to identify the damper type.

E. Rectangular sheet metal ductwork shall be insulated externally. Duct dimensions shown on Drawings are net clear inside dimensions, that is, the inside dimensions of the duct insulation.Refer to Section 230710.

F. Flexible non-metallic ductwork shall be connected to rigid metal duct fittings and terminal unit duct collars by draw straps. Extend flexible duct insulation and vapor barrier over completed joint and tape securely.

G. Manual volume dampers shall be installed in all branch ducts for balancing and as indicated on Drawings.

H. Access panels shall be installed in inaccessible ceilings for access to air distribution devices requiring adjustment, repair, or replacement. Refer to Section 230505.

3.2 DUCT SEALING

A. Seal ducts for duct static-pressure, seal classes, and leakage classes specified in "Duct Schedule" Article according to SMACNA's "HVAC Duct Construction Standards - Metal and Flexible."

B. Joints in exhaust ductwork carrying steam or high humidity (i.e. dishwasher or shower room exhaust) shall be sealed watertight with clear silicone calk.

3.3 HANGER AND SUPPORT INSTALLATION

A. Comply with SMACNA's "HVAC Duct Construction Standards - Metal and Flexible," Chapter 4, "Hangers and Supports."

3.4 INSTALLATION – INTEGRATED CEILING GRID

A. Field verify that the rough hard ceiling opening dimensions are as indicated within Integrated Ceiling System manufacturer’s submittals. Hard ceiling conditions shall be plumb and level with square corners to receive the Integrated Ceiling System. Openings not acceptable for Integrated Ceiling System installations shall be corrected by the appropriate contractor until conditions are satisfactory to installing contractor.

B. Verify location of all components as shown on the Integrated Ceiling System manufacturer’s approved submittals.



C. Where adjacent welded framing sub-assemblies butt together with half-tees, the adjoining surfaces shall be gasketed and mechanically-fastened with self-tapping wafer head screws.

D. Gasket tape provided by Integrated Ceiling System manufacturer shall be field installed on the top side of all horizontal ceiling grid surfaces. Gasket tape to be installed after framing surfaces have been wiped clean, free from construction dust.

E. Provide inserts, power-driven type anchors, hangers or other approved hanger anchoring and suspension system devices and methods.

F. Install suspended ceiling hangers plumb and free from contact with insulation or other objects within ceiling plenum not part of supporting structural or ceiling suspension systems. Splay hangers only where required to avoid obstructions and offset resulting horizontal forces by bracing, or counter splaying.

G. Where width of ducts, cable trays and other construction within ceiling plenums causes hanger spacing to interfere with the location of hangers required to support suspension system members, install supplemental suspension members and hangers in the form of a trapezehanger. Size supplemental suspension members and hangers to support ceiling loads within performance limits established by referenced standards.

H. Secure wire hangers to structure by looping and wire-tying, either directly to structures or to inserts, eye screws, or other devices and fasteners appropriate for the substrates.

I. Hanger wires for framing sections shall be installed a maximum 2’-0” on center in both directions and a maximum 6 inches from framing ends.

J. Hangers shall not penetrate ductwork, ductwork insulation or piping insulation. Integrated Ceiling System shall not be suspended from ductwork, conduit, pipes or plumbing equipment. Hangers shall not interfere with heating and ventilating equipment and their maintenance.

K. Blank-off panels for equipment penetrations within the Integrated Ceiling System shall be field cut and installed before booms are attached to structural plates. Do not cut blank-off panels in half.

3.5 DUCT LEAKAGE TESTING

A. Perform duct leakage testing in accordance with SMACNA “HVAC Air Duct Leakage Test Manual” and submit written letter of compliance.

1. Disassemble, reassemble and seal segments of systems as required to accommodate testing.

2. Conduct tests at static pressures equal to maximum design pressure of system. Do not pressurize systems above maximum design operating pressure.

3. Maximum allowable leakage shall be SMACNA Leakage Class 3 for supply air ducts and Leakage Class 6 for return air ducts.

B. Perform duct leakage testing for the following systems:

1. HP-AHU2 supply air and return air systems.





4. HP-EF5 exhaust air system.



3.6 DUCT CONSTRUCTION SCHEDULE

Air System Pressure Class SMACNA Seal Class

Supply Ducts Connected to Central Station Variable Air Volume Air

Handling Units and Packaged Rooftop Units

Positive 3 inches water gage.

B

Supply Ducts Downstream of Variable Air Volume Boxes

Positive 1 inchwater gage.

C

Return and Relief Air Ducts Connected to Central Station Air

Handling Units and Packaged Rooftop Units

Negative 2 inches water gage.

C

Outside Air Ducts Connected to Central Station Air Handling Units

and Packaged Rooftop Units


C

General Exhaust Ducts Positive or Negative 1 inch water gage.

C

Special Exhaust Ducts: Isolation Room Exhaust, 1st Floor Central

Sterile Exhaust


C



VARIABLE AIR VOLUME SYSTEMS 233020 - 1

SECTION 233020 – VARIABLE AIR VOLUME SYSTEMS

PART 1 - GENERAL

1.1 WORK INCLUDED

A. The Work of this Section shall consist of the labor, materials and equipment required for installation of variable air volume equipment.

1.2 SUBMITTALS


1. Control Units

2. Control Reheat Units

3. Fan Powered Units

PART 2 - PRODUCTS

2.1 CONTROL UNIT, TYPE CU

A. Acceptable Manufacturer: Trane, or Carrier, Titus, Enviro-Tec/Johnson Controls.

B. Casing: Constructed of galvanized steel and lined with minimum 1-1/2 pound density thermal/acoustical foil-faced fiberglass insulation meeting UL 181 and NFPA 90 requirements. Provide access door for inspection and cleaning.

C. Air Volume Control Damper: Factory calibrated air damper assembly, factory set and field adjustable minimum and maximum airflows.

D. Controls

1. Internal regulator to maintain constant airflow independent of inlet static pressure.

2. Factory mounted electric actuator for interface with automatic temperature control system.

3. Refer to Section 239010, Building Automation System.

2.2 SHUTOFF CONTROL REHEAT UNIT, TYPE CRU


B. Casing: Constructed of galvanized steel and lined with minimum 1-1/2 pound density thermal/acoustical foil-faced fiberglass insulation meeting UL 181 and NFPA 90 requirements. Provide access door for inspection and cleaning.



C. Air Volume Control Damper: Factory calibrated air damper assembly, factory set and field adjustable minimum and maximum airflows.

D. Hot Water Heating Coil

1. Factory mounted to casing, constructed of 1/2 or 5/8 inch OD copper tubes mechanically expanded onto aluminum fins.

E. Controls

1. Internal regulator to maintain constant airflow independent of inlet static pressure.

2. Factory mounted electric actuator for interface with automatic temperature control system.

3. Refer to Section 239010, Building Automation System.

2.3 PARALLEL FAN POWERED UNIT, TYPE FPU


B. Construction: Single cabinet unit, constructed of not lighter than 22 gage zinc coated steel. Slip and drive air inlet connection, 1 inch duct collar fan discharge. Internal surfaces insulated with 1-1/2 pound density foil-faced glass fiber insulation, meeting UL 181 and NFPA 90 requirements. Provide access door for inspection and cleaning.

C. Dampers: Factory calibrated air damper assembly constructed for 2 percent maximum air leakage at 3 inches water column.

D. Fan Assembly: Forward curved centrifugal fans, direct drive, with Electrically Commutated Motor (ECM) type motor. Speed control. Fan and motor shall be internally suspended in casing on rubber isolators.

E. Hot Water Heating Coil: Factory mounted to casing, constructed of 1/2 or 5/8 inch OD copper tubes mechanically expanded onto aluminum fins.

F. Controls: Factory installed electric controls. Refer to Section 239010, Building Automation System.

PART 3 - EXECUTION

3.1 INSTALLATION

A. Install VAV equipment in accordance with equipment manufacturer's recommendations. Submit manufacturer's printed installation instructions with operating and maintenance data at completion of Work.

B. Provide supporting steel for support of VAV equipment from substantial building structure. Do not support VAV equipment from adjacent equipment, piping, or ductwork.



C. Provide sheet metal transitions as required for inlet and discharge connections of VAV equipment.



FANS AND GRAVITY VENTILATORS 233410 - 1

SECTION 233410 – FANS AND GRAVITY VENTILATORS

PART 1 - GENERAL

1.1 WORK INCLUDED

A. The Work of this Section shall consist of the labor, materials and equipment required for installation of fans and gravity ventilators.


A. Section 230505, HVAC Basic Materials: Motors

1.3 SUBMITTALS


1. Fans

B. Product Data: Submit manufacturer's technical product data for fans, including:

1. Selection characteristics and rated capacities.

2. Fan performance curves with system operating conditions indicated.

3. Sound power ratings, with an 8 octave band analysis for large, central system fans.

4. General specifications: Fan type description, material of construction, thicknesses and finishes.

5. Motor type, ratings and electrical characteristics

6. Accessories furnished

C. Shop Drawings: Include the following:

1. Plans, elevations, sections, and attachment details.

2. Details of equipment assemblies. Indicate dimensions, weights, loads, required clearances, method of field assembly, components, and location and size of each field connection.

D. Wiring Diagrams: Submit manufacturer's electrical requirements for power supply wiring to fan units. Submit manufacturer's ladder-type wiring diagrams for interlock and control wiring. Clearly differentiate between portions of wiring that are factory-installed and portions to be field-installed.

E. Maintenance Data: Submit operation and maintenance instructions, including lubrication instructions, motor and drive replacement, and spare parts lists. Include this data, product data, shop drawings, and wiring diagrams in maintenance manuals.



F. Manufacturer's published fan curve data shall be included with shop drawing submittal data for fans. Fan curve information shall include operating point, RPM curve for operating point, minimum and maximum RPM curves for fan, system curve and brake horsepower curves. Tabular fan performance charts are not an acceptable substitute for fan curve data. Shop drawing submittals for fans will be returned without Engineer's review if the fan curve data is not included with the submittal.


A. Electrical Components, Devices, and Accessories: Listed and labeled as defined in NFPA 70, by a qualified testing agency, and marked for intended location and application.

B. Fan rating shall be AMCA certified.

1.5 SOURCE QUALITY CONTROL

A. Fan Sound-Power Level Ratings: Comply with AMCA 301, "Methods for Calculating Fan Sound Ratings from Laboratory Test Data." Test fans according to AMCA 300, "Reverberant Room Method for Sound Testing of Fans." Fans shall bear AMCA-certified sound ratings seal.

B. Fan Performance Rating: Factory test fan performance for airflow, pressure, power, air density, rotation speed, and efficiency. Rate performance according to AMCA 210, "Laboratory Methods of Testing Fans for Aerodynamic Performance Rating."

1.6 EXTRA MATERIALS

A. Furnish one set of extra fan belt(s) for each fan. Identify unit designation on packaging sleeves.

PART 2 - PRODUCTS

2.1 GENERAL

A. Fan ratings shall be AMCA certified and statically and dynamically balanced and run tested at the factory.

B. Bearings: Fans, except power roof ventilators, shall be provided with lubricating type bearings with extended fittings as required. Extend grease fittings to safe, accessible locations.

C. Motors: Refer to Section 230505 for motor requirements.

D. Accessories:

1. Belt guards: Where required, guards shall be fabricated to comply with OSHA and SMACNA requirements, constructed of expanded metal mesh to allow for quick visual inspection of belts and pulleys without removal. Guards shall be attached to equipment with hinges and/or quick release fasteners that can be turned without tools to allow for



ease of maintenance. Secure to fan or fan supports without short circuiting vibration isolation.

2. Access for Inspection, Cleaning, and Maintenance: Comply with requirements in ASHRAE 62.1.

3. Roof Exhaust Fan Roof Curbs: Provide manufacturers roof curb with outer finish to match fan. Provide hinging kit to allow easy access to damper. Curb shall be insulated with 2 inch thick sound and thermal insulation.

2.2 CENTRIFUGAL ROOF FAN, TYPE RFB

A. Acceptable Manufacturer: Greenheck Fan Corp., or Loren Cook Company, PennBarry, Carnes, Solar & Palau.

B. Housing: Heavy gage spun aluminum.

C. Motor

1. Vibration isolated.

2. Permanently lubricated ball bearing type isolated from exhaust air stream.

3. Prewired to integral UL listed disconnect switch within fan housing.

4. Adjustable motor pulley.

D. Fan Wheel


2. Centrifugal, statically and dynamically balanced.

E. Accessories

1. Motor operated damper.

2. Bird screen.

3. Variable pitch motor pulley.

4. Automatic spring loaded belt tightener.

5. Furnish curb adapter to mate to existing roof curb.

2.3 CENTRIFUGAL UPBLAST ROOF FAN, TYPE UFCB

A. Acceptable Manufacturer: Greenheck Fan Corp., or Loren Cook Company, PennBarry, Carnes, Solar & Palau.

B. Housing

1. Heavy gage spun aluminum.

2. Rain and grease collection/drainage area at base of housing.

C. Motor




2. Permanently lubricated ball bearing type enclosed in forced air cooled motor compartment sealed from exhaust air stream.

3. Prewired to integral UL listed disconnect switch within fan housing.

4. Adjustable motor pulley.

D. Fan Wheel


2. Centrifugal, statically and dynamically balanced.

E. Accessories

1. Bird screen.

2. Variable pitch motor pulley.

3. Automatic spring loaded belt tightener.

4. Insulated roof curb, 12 inches high minimum.

2.4 HAZARDOUS EXHAUST CENTRIFUGAL ROOF FAN, TYPE HFB

A. Acceptable Manufacturer: Greenheck Fan Corp. Model Vektor-H or as approved.

B. Housing

1. Welded Steel Construction.

2. High velocity conical discharge nozzle.

3. Housing drain.

4. Lifting lugs.

5. Fan, impeller, and discharge nozzle coated with 4 mils polyester resin.

C. Motor

1. Motor and drive covered to protect components.


3. Bearings with L10 bearing life with extended tube lines for fan lubrication.

4. Factory wired integral NEMA 3R disconnect switch.

5. Belts and sheaves sized for 200 percent of motor horsepower with minimum of two belts.

D. Fan Wheel


2. Backward inclined, non-overloading.

3. Statically and dynamically balanced.

E. Accessories



1. Structurally reinforced roof curb with minimum wind load rating of 125 miles per hour, 12 inches high minimum.

PART 3 - EXECUTION

3.1 INSTALLATION

A. Install fans in accordance with equipment manufacturer's recommendations. Submit manufacturer's printed installation instructions with operating and maintenance data at completion of Work.

B. Install fans level and plumb to prohibit excessive vibration and insure longer life.

C. Protect belts, sheaves, bearings, motors and other fan parts during installation.

D. Access: Provide adequate access and service clearance space around and over fans as indicated, but in no case less than that recommended by manufacturer. Allow adequate and safe pathway for components and unit replacement.

E. Isolation: Comply with requirements for vibration isolation devices specified in Section230535.

F. Duct Connections:

1. Minimize Fan System Effects: Avoid poor fan inlet and outlet conditions. Comply with manufacturer’s installation guidelines.

2. Make final duct connections with flexible connectors.

3. Install ducts adjacent to fans to allow service and maintenance.

4. Provide access door in duct below power roof ventilators to service damper.

G. Secure roof-mounted fans to roof curbs with cadmium-plated hardware.

H. Electrical Connections: Ground equipment and connect control wiring according to Division 26.

I. Roof curbs provided as Work of this Section shall be coordinated with existing roof type. Shop drawing submittals for roof curbs, with, or without, cants will be considered compatible with existing roof type.

3.2 FIELD QUALITY CONTROL

A. Upon completion of installation of fans, and after motor has been energized with normal power source, perform the following tests and inspections with the assistance of a factory-authorized service representative to demonstrate compliance with requirements:

1. Verify that shipping, blocking, and bracing are removed.

2. Verify that unit is secure on mountings and supporting devices and that connections to ducts and electrical components are complete. Verify that proper thermal-overload protection is installed in motors, starters, and disconnect switches.



3. Verify that cleaning and adjusting are complete.

4. Disconnect fan drive from motor, verify proper motor rotation direction, and verify fan wheel free rotation and smooth bearing operation. Reconnect fan drive system, make final alignments of pulleys and belt tension, and install belt guards.

5. Adjust damper linkages for proper damper operation.

6. Verify lubrication for bearings and other moving parts.

7. Verify that manual and automatic volume control and fire and smoke dampers in connected ductwork systems are in fully open position.

8. Test and adjust controls and safeties. Controls and equipment will be considered defective if they do not pass tests and inspections.

9. Prepare test and inspection reports.

B. Remove and replace malfunctioning units that cannot be satisfactorily corrected and retest as specified above.



CENTRAL HEATING EQUIPMENT 235010 - 1

SECTION 235010 – CENTRAL HEATING EQUIPMENT

PART 1 - GENERAL

1.1 WORK INCLUDED

A. The Work of this Section shall consist of the labor, materials and equipment required for installation of the heat generation equipment and associated support equipment.

1.2 SUBMITTALS


1. Boilers, including burners and controls

2. Vent Pipe and Air Intake Pipe

B. Product Data: Include performance data, operating characteristics, furnished specialties, and accessories.

C. Shop Drawings: For boilers, boiler trim, and accessories. Include plans, elevations, sections, details, and attachments to other work.

D. Wiring Diagrams: Power, signal, and control wiring.


A. Electrical Components, Devices, and Accessories: Listed and labeled as defined in NFPA 70, Article 100, by a testing agency acceptable to authorities having jurisdiction, and marked for intended use.

B. ASME Compliance: Fabricate and label boilers to comply with ASME Boiler and Pressure Vessel Code.

C. UL Compliance: Test factory-built gas appliances for compliance with UL 795, "Commercial-Industrial Gas Heating Equipment." Boilers shall be listed and labeled by a testing agency acceptable to authorities having jurisdiction.

D. Comply with PA Department of Labor and Industry requirements.

E. Comply with Owner’s insurance underwriter’s requirements.

1.4 EXTENDED WARRANTY

A. 5 years on heat exchanger.



1.5 BOILER SYSTEM START UP SERVICE

A. Provide complete start-up services for each boiler. Start-up services shall include manufacturer’s recommended boil-out procedures, boiler manufacturer inspections during construction, and burner manufacturer supervised start-up under direction of combustion management system manufacturer. Each component of the boiler system shall be tested by the component manufacturer and a summary of all tests shall be submitted by Contractor to the Construction Manager.

PART 2 - PRODUCTS

2.1 PACKAGED HIGH EFFICIENCY WATERTUBE BOILERS

A. Manufacturer

1. Basis of Design: Patterson-Kelley, “MACH”

2. Other Acceptable Manufacturers: Lochinvar, Thermal Solutions.

B. General: Gas-fired boiler system with energy management controls. Individual boilers shall be low pressure, copper fin type capable of developing full output capacity at one hundred percent firing rate.

C. Warranty: Furnish manufacturer’s 5 year warranty.

D. Water Containing Section: Shall consist of two integrated heat exchangers constructed of "Fin Tube" design, with straight copper tubes having extruded integral fins. Tubes shall be "rolled" securely into glass-lined, cast iron headers. There shall be no bolts, gaskets or "O" rings in the head configuration. Removable access plugs shall be provided on the heat exchanger headers for the purposes of inspection, cleaning or repair. Boiler drains shall be provided, having external access. The heat exchanger shall be mounted in a stress free jacket assembly in order to provide a "free floating design" able to withstand the effects of thermal shock. The boilershall bear the ASME "H" stamp for 160 PSI working pressure and shall be National Board listed.

E. Each boiler shall be supplied with a bronze fitted circulating pump wired for intermittent operation.

F. Combustion Chamber: Constructed of stainless steel and sealed for combustion employing the fully condensing power burner concept. The burner surface shall be constructed of high temperature aluminum/chromium alloy woven mesh and fire in a vertical plane within the combustion chamber. The burner shall employ a special perforated flame injection tube extending the entire length of the heat exchanger. The burner must be capable of firing at both a complete blue flame with maximum gas and air input as well as firing infrared when gas and air are reduced. A viewing port shall be provided, permitting visual observation of burner operation.

G. Combustion Air Blower: Shall precisely control the fuel/air mixture for maximum efficiency. Blower constructed entirely of aluminum, shall be mounted on the burner and draw gas and air from a mixing chamber. Utilization of a variable frequency drive will enable the blower to



infinitely vary its’ speed. The boiler shall operate between 25 percent and 100 percent of rated output. The combustion air blower shall operate for a pre purge period before burner ignition and a post purge period after burner operation to clear the combustion chamber.

H. Jacket Assembly: Constructed with a 16 gauge galvanized steel. The interior of the combustion chamber and flue collector shall be constructed completely of stainless steel so as to ensure corrosion protection. All inner and outer jacket panels shall be fully gasketed and sealed. The exterior of the jacket assembly shall be primed and factory painted on both sides.

I. Boiler Mounted Interface Controller: Microprocessor based platform incorporating unique software customized for operation. The controller shall be compatible with building management systems. All internal safety, operating and ignition controls shall interface with the microprocessor controller. The boiler interface control shall provide on/off control of the gas supply to the burner, operation of the VFD to control the variable speed combustion air blower, interface with the ignition control system, on/off control of the integral circulating pump, operation of the floating point bypass valve, control of water temperature set points, and monitoring of all safety functions. Local communication, programming and display of operating and alarm status conditions shall be accessible through a digital display panel. Displayed data points include temperature, unit operation status, operational sensor location, total run time, sequencing operation, and firing rate. The boiler interface control shall be capable of varying burner input from 25 percent up to 100 percent of rated input.

J. Operating Controls: Shall include an adjustable immersion type, digital temperature controller and an immersion safety, adjustable manual reset high limit to regulate boiler water temperatures. Multiple air pressure switches shall be provided to prove operation of the combustion air fan, monitor combustion chamber pressures and monitor operation of the flue.

K. Hot Surface Ignition System: The standard control system shall include an electronically proven Hot Surface Ignition system with full flame monitoring capability. Additional standard controls shall include a low voltage transformer for the control circuit, a flow switch to prove water flow, inlet and outlet temperature displays, and a factory installed ASME pressure relief valve.

L. Control Panel: Contains a lighted on-off main power switch, alarm light and audible silence switch, and a high temperature alarm light. A central monitor for all boilers shall be provided. This monitor will provide a digital display of 21 data points on each unit and be capable of monitoring up to 16 individual units. Displayed data points include temperatures, unit operation status, operational sensor location, total run time, sequencing operation, and firing rate. A 24-VAC control circuit and components shall be used in conjunction with a 24-volt circuit breaker.

M. BAS Communication: The boiler shall be capable of two-way communication to a BAS/ATC system. The boiler shall be provided with a terminal strip for easy communication wiring. Remote diagnostic and operation information utilizing a personal computer shall be provided via the network connection. Temperatures, unit operation status, outdoor air reset programming, operational sensor location, total run time, sequencing operation, and firing rate shall be visible using the remote connection, adjustment of changeable points is required. Monitoring only is unacceptable.

N. Accessories

1. FM approved gas train.

2. High gas pressure switch with manual reset.



3. Low gas pressure switch with manual reset.

4. Low water cut-off.

2.2 VENT PIPE, HIGH EFFICIENCY BOILER

A. Acceptable Manufacturer: Metal Fab Corr/Guard CG, or Metalbestos, Dura Vent Corp., Van Packer, Ampco.

B. General: Flue pipe shall have 1 inch air space, double-wall constructed of 0.015 inch AL29-4C stainless steel inner pipe and 0.018 inch aluminized steel outer pipe. Suitable for 550 degrees F operating temperature.

C. Codes: Flue pipe shall be UL approved and comply with NFPA standards 37 and 211. Flue pipe shall be installed in accordance with requirements of local utility and flue manufacturer's recommendations.

D. Accessories: Provide required quantity of flue pipe sections and fittings to complete flue pipe installation indicated on Drawings, including straight (fixed, adjustable or variable lengths) sections, tees, wyes and elbows. In addition, provide the following accessories to complete the installation in accordance with the manufacturer's recommendations:

1. Stack cap

2. Increaser/reducer

3. Roof support assembly

4. Ventilated roof thimble

5. Stack closure ring

6. Storm collar

7. Ceiling Penetration

8. Ceiling support & guide assemblies

9. Guy section & guy tensioners

2.3 AIR INTAKE PIPE, HIGH EFFICIENCY BOILER

A. CPVC Pipe: ASTM F441/F441M, Schedule 40 80, chlorinated polyvinyl chloride (CPVC) material.

1. Fittings: ASTM F438, CPVC, Schedule 40, socket type or ASTM F439, CPVC, Schedule 80, socket type or ASTM F437, CPVC, Schedule 80, threaded.

2. Joints: ASTM D2846/D2846M, solvent weld with ASTM F493 solvent cement. Prime joints with a contrasting color.



PART 3 - EXECUTION

3.1 INSTALLATION

A. Boiler(s) shall be installed in accordance with manufacturer's erection/installation procedures. Submit manufacturer's printed installation instructions with operating and maintenance data at completion of Work.

B. Install boilers plumb and level, to plus or minus 1/16 inch over boiler base.

C. Connect natural gas piping in accordance with NFPA 54.

D. Connect natural gas piping to boiler, full size of boiler gas train inlet. Arrange piping with clearances for burner removal and service.

E. Install boiler trim and accessories furnished loose for field mounting.

F. Install electrical devices furnished loose for field mounting.

G. Install control wiring between boiler control panel and field mounted control devices.

H. Connect flue to boiler outlet, full size of outlet.

I. Consult water treatment supplier before boiler and water system are filled. Treatment chemicals shall be added at time of initial charge.

J. Submit “Intent to Install Boiler” form to PA L&I and arrange for inspection of boiler system by Pennsylvania Department of Labor and Industry licensed inspector. Install boiler inspection certificate in protective frame at a visible location in boiler room.

K. Pipe pressure relief valves to floor drain.


A. Perform combustion test including boiler firing rate, over fire draft, gas flow rate, heat input, burner manifold gas pressure, percent carbon monoxide, percent oxygen, percent excess air, flue gas temperature at outlet, ambient temperature, net stack temperature, percent stack loss, percent combustion efficiency, and heat output. Perform test at minimum, mid-range, and high fire.

B. Arrange with local authorities having jurisdiction for inspection of boiler, piping, and for certificate of operation.

3.3 MANUFACTURER'S FIELD SERVICES

A. Start-up boilers according to manufacturer's start-up instructions and in presence of boiler manufacturer's representative. Test controls and demonstrate compliance with requirements. Adjust burner for maximum burning efficiency. Replace damaged or malfunctioning controls and equipment.



3.4 CLEANING

A. Flush and clean boilers upon completion of installation, in accordance with manufacturer's start-up instructions.

3.5 DEMONSTRATION

A. Demonstrate operation and maintenance procedures.

B. Furnish services for manufacturer's technical representative for one 8 hour day to instruct Owner's personnel in operation and maintenance of boilers. Schedule training with Owner, provide at least 7 days’ notice to Construction Manager of training date.



HEAT TRANSFER 235710 - 1

SECTION 235710 – HEAT TRANSFER

PART 1 - GENERAL

1.1 WORK INCLUDED

A. The Work of this Section shall consist of the labor, materials and equipment required for installation of heat transfer system components and specialties.

1.2 SUBMITTALS


1. Air Separator

2. Air Vents

3. Expansion Tank

4. Relief Valves

5. Water Pressure Reducing Valve

6. Calibrated Balancing Valves

7. Float And Thermostatic Trap

8. Thermodynamic Trap

9. Automatic Pump Trap

10. Steam Pressure Reducing Valve

11. Steam Safety Valve

12. Drip Pan Elbow

13. Steam Separator

14. Electric Operated 2-stage Steam Pressure Reducing Station

15. Condensate Return Pump and Receiver Set

16. Heat Exchangers

17. Flash Tanks

18. Chemical Water Treatment

19. Electric Heating Cable



PART 2 - PRODUCTS

2.1 HYDRONIC SPECIALTIES

A. Air Separator, Tangential

1. Acceptable Manufacturer: Taco, or Amtrol, Bell & Gossett.

2. Type: Tangential, reduced velocity type with integral strainer and companion automatic air vent.

3. Construction: Fabricated steel, suitable for 125 psig working pressure, ASME.

4. Sizes: 2 inches and larger.

B. Automatic Air Vents

1. Acceptable Manufacturer: Hoffman No. 77, or Amtrol, Taco.

2. Body: Brass

3. Internal Working Parts: Stainless steel or nonferrous.

4. Operation: Vacuum breaker and float type valve assembly to automatically vent air from system.

C. Manual Air Vents

1. Acceptable Manufacturer: Taco 417, or Hoffman.

2. Body: Brass.

3. Operation: Quick venting slotted adjustment with positive shutoff ball check.

D. Expansion Tank

1. Acceptable Manufacturer: Amtrol.

2. Type: Sealed-in diaphragm or removable bladder.

3. Tank: Steel

4. Tank Fittings: Manufacturer shall supply charging valve and proper tank fittings to make all gage, fill, drain and system connections.

5. Working Pressure: 125 psig

6. Construction: Shall be in accordance with ASME code for unfired pressure vessels and shall bear ASME label. Shall be guaranteed leakproof for air and water.

E. Relief Valves

1. Acceptable Manufacturer: Bell & Gossett.

2. Relief valves shall be installed in water system at locations and in sizes noted on the Drawings. Valves shall bear the ASME label.

F. Pressure Reducing Valve

1. Acceptable Manufacturer: Cash Acme Type B, or Watts.



2. Type: Diaphragm with self-cleaning seat.

3. Construction: Bronze.

4. Pressure Range: 200 psig maximum inlet and factory set at discharge pressure indicated on the Drawings.

5. Installation: Make-up (domestic cold) water line, furnished with three valve bypass as indicated on the Drawings.

6. Standard Features: Self-contained strainer.

G. Calibrated Balancing Valves

1. Acceptable Manufacturer: Bell & Gossett Model CB, or Taco.

2. Construction: Bronze body with threaded ends, brass ball construction with glass and carbon filled TFE seat rings.

3. Standard Features: Differential pressure readout ports across valve seat area. Readout ports to be fitted with internal EPT inserts and check valves. Valve body provided with 1/4 inch NPT tapped drain purge port. Valve furnished with calibrated nameplate indicating specific valve setting. Valve shall be rated for 300 psig at 250 degrees F. Provide portable master meter kit for use during start-up, testing and balancing.

4. Line size(s) indicated on Drawings does not necessarily indicate required size for calibrated balancing valves. Contractor shall be responsible to select appropriate valve size according to flow characteristics.

2.2 STEAM SPECIALTIES

A. Float And Thermostatic Trap

1. Acceptable Manufacturer: Spirax-Sarco Model FT. No substitutions.

2. Body: Cast semi-steel.

3. Internal Working Parts: Stainless steel valve heads, seats and float mechanism.

4. Thermostatic Element: Trap shall have a thermostatic element of the balanced pressure type to prevent air binding in trap.

B. Thermodynamic Trap

1. Acceptable Manufacturer: Spirax-Sarco Series TD. No substitutions.

2. Thermodynamic traps shall have zinc plated, cold finished steel body with reversible stainless steel seats and discs.

C. Automatic Pump Trap

1. Acceptable Manufacturer: Spirax Sarco Model APT 10-4.5. No substitutions.

2. Steam operated.

3. Body: Cast iron ASTM A395 with stainless steel swing-type inlet check valve and ball-type outlet check valve.

4. Internal Working Parts: Stainless steel float mechanism.



D. Steam Pressure Reducing Valve

1. Acceptable Manufacturer: Spirax-Sarco Model 25P. No substitutions.

2. Type: Pilot actuated diaphragm operated type with pilot assembly on top and diaphragm housing below.

3. Main Valve Construction: Main valve shall be single seated with hardened stainless steel trim, and the valve body shall be cast semi steel. Head and seat shall be conveniently replaceable by removing only the top body cover. Valve head shall be free to lift out without the use of tools. Valve stem guide shall be fitted with a flushing and pressure arresting device to promote cleanliness of guiding parts and to prevent pressure build up in the upper diaphragm chamber.

4. Pilot Valve Construction: Pilot valve shall be of bolt on design and shall be connected to the valve body without the use of pipe nipples. The pilot diaphragm shall be covered for protection against dirt accumulation.

E. Steam Safety Valve

1. Acceptable Manufacturer: Spirax-Sarco SV73. No substitutions.

2. Safety valve shall be installed in steam system as shown. Unit shall have cast iron body, bronze disc, side outlet and fitting lever. Maximum service pressure; 250 psig saturated steam. Constructed and labeled for conformance with ASME code.

F. Drip Pan Elbow

1. Acceptable Manufacturer: Spirax-Sarco. No substitutions.

2. Drip pan elbow shall be cast iron elbow of the same size as the outlet of the relief line preceding the pan and shall be located where indicated on the Drawings.

G. Steam Separator

1. Acceptable Manufacturer: Spirax-Sarco. No substitutions.

2. Type: Internal baffle with pressure drop not exceeding an equivalent length of pipe.

3. Construction: Fabricated steel body and entirely steel construction in accordance with Section VIII, Division of ASME Boiler and Pressure Vessel Code. ASME stamped for maximum working pressure of 150 psi. Threaded bottom drain.

H. Electric Operated 2-stage Steam Pressure Reducing Station

1. Pressure Reducing Valvesa. Acceptable Manufacturer: Spirax Sarco Series LEA/KEAb. Electric operated modulating control valves.c. Ductile Iron body with ANSI class 250 psig rating.d. Normally closed, power to open.e. Stainless steel trim with renewable stellited seat.f. Stellited, stainless steel inner valve with equal percent or modified linear flow

characteristic.g. Suitable for dead end service with ANSI Class IV shut off.h. Valve body face dimension shall be in accordance with ANSI standards.i. Actuator shall be attached to valve bonnet, and shall be set to close against full

primary source pressure without the need for positioning devices.



j. Valve packing shall be Teflon Chevron, or Teflon Braided Graphite with bolted packing gland and stainless steel packing follower.

k. All internal parts shall be replaceable without removing valve from pipeline or disturbing main line pipe connections.

l. Valves shall be heavy-duty industrial grade similar to Spirax Sarco series LEA and KEA as listed in the valve schedule.

m. Steam piloted valves, and air loaded steam piloted valves shall not be considered.

2. Electronic Multi-Loop Controllera. Acceptable Manufacturer: Spirax Sarcob. Controller shall be DIN rail mounted, multi-loop, multi-function controller c. Controller shall be pre-wired in NEMA 12 enclosured. Controller shall run on 120 VAC power source wired through DIN rail mounted

circuit breaker.e. Controller shall receive pressure transmitter signals and output appropriate 4-

20mA control signals for either (1) or (2) stages of pressure reduction f. Controller shall communicate with Building Automation System via Modbus

protocolg. Controller shall be set to control parallel valves at 33% of system load for PRV-1

and 67% of load for PRV-2 using 4-20mA signals, one for each valve h. Unit shall automatically modulate load between PRV-1 and PRV-2 based on

system requirements.

3. Pressure Transmittersa. Acceptable Manufacturer: Spirax Sarco Model EL2600b. Each stage of the electric PRV station shall have a pressure transmitter mounted

onto a “U” siphon.c. Pressure transmitter shall sense steam pressure and transmit a 4-20mA signal to the

controller.d. Body should be stainless steel with molded plastic electrical connector.e. An appropriate pressure range shall be selected for the pressure transmitter to

coincide with the desired steam system pressure.

4. Noise Attenuatorsa. Acceptable Manufacturer: Spirax Sarco AP Series acoustic plate and/or D Series

noise diffusersb. Reducing valves shall be furnished with a noise attenuator. Muffling orifice plates

and/or D series diffusers are acceptable methods of achieving specified attenuation.

c. Residual noise generated by reducing valve shall not exceed 85 dBA.1) Maximum attenuation performance 15 dba or as required.

5. Safety Relief Valvesa. Acceptable Manufacturer: Spirax Sarco Model SV73b. If indicated on the valve schedule or on the drawings, furnish full size safety relief

valves on the downstream side of reducing stations in accordance with the following specifications.1) Body of Cast Iron with stainless steel seat and disc. 2) ASME certified and tagged.3) Furnish with drip pan elbow fitting.4) Terminate minimum 6 feet above roof line with exhaust head.5) Pipe drip connections on drip pan and exhaust head to nearest drain.



6) Relief valve set point shall be minimum 5 psig or 10 percent abovereducing valve setting whichever is greater.

2.3 CONDENSATE RETURN PUMP AND RECEIVER SET, DUPLEX

A. Acceptable Manufacturer: Spirax-Sarco G-Series, or Weil Pump Company, Pacific Pumping Company, Roth, Sterling.

B. Materials

1. Pump: Bronze-fitted centrifugal design.

2. Motor: 1750 RPM with built-in overload protection.

3. Receiver: Steel or cast iron.

4. Shaft: Stainless steel on non-corrosive material.a. Impeller: Bronze, enclosed.b. Pump Seal: Standard mechanical seal.c. Float: Copper or copper coated.d. Shaft Sleeve: Stainless steel.

C. Controls: Floats, float switches. Automatic alternating float switch shall be supplied in place of two float switches for duplex units. Furnish factory mounted and wired control panel, installed on receiver, for enclosing motor starters and disconnect switches.

D. Construction: Unit shall be complete with 2 pumps, 2 motors, starters, float, float rod, float switches, and receiver.

2.4 HEAT EXCHANGER

A. Acceptable Manufacturer: Bell & Gossett Model SU, or Patterson Kelley, Adamson, Taco.

B. Type: Shell and tube, U-bend. Removable tube bundle, steam in shell, water in tubes.

C. Heating Medium: Steam

D. Materials

1. Water Chamber: Cast iron.

2. Shell: Steel.

3. Tube Sheet: Steel.

4. Tubes: 3/4 inch OD seamless drawn copper.

5. Tube Supports: Steel or copper.

6. Heads: Cast iron or steel.

E. Working Pressure: 125 psig

F. Construction: Shall be in accordance with the ASME code for unfired pressure vessels and shall bear ASME label.



2.5 FLASH TANK

A. Acceptable Manufacturer: Spirax-Sarco, or Adamson.

B. Type: Welded construction.

C. Tank Fittings: Openings 2 inches and smaller shall be extra heavy pipe couplings. Openings 2 1/2 inches and larger shall be 150 lb. steel flanges.

D. Construction: Shall be in accordance with ASME code for unfired pressure vessels and shall bear ASME label.

2.6 CHEMICAL WATER TREATMENT

A. Acceptable Manufacturer: ProAsys, no substitutions.

B. General: Furnish and install a complete water treatment program. Chemicals, service and equipment shall be supplied by a single water treatment company for undivided responsibility. The water treatment chemical and service supplier shall be a recognized specialist, active in the field of industrial water treatment for at least ten years, whose major business is in the field of water treatment, and shall have regional water analysis laboratories, development facilities and service department.

C. Bypass Feeder:

1. Capacity: 2 gallons.

2. Construction:a. Shell: Steel, minimum 10 gage with wide mouth opening. b. Head: Steel, minimum 9 gage. c. Cap: Minimum 4 inch, cast iron with epoxy-coated underside and square ring Buna

N seat ring. Continuous threaded closure. d. Pressure Rating: 300 psi at 200 degrees F.e. Full bottom drain.

3. Accessories:a. Legs with anchor bolt holes to elevate the feeder off the floor. b. Filter Bag Kit: Filter bag supported by a stainless steel filter basket with tuning and

connectors for side stream filtering. 1) Install 50 micron filter bag during system start-up.2) Provide Owner with additional 20 micron filter bag.

D. Water Treatment Chemicals: Furnish one year's supply of the recommended formulas for control of scale, pitting and corrosion of the closed loop systems.

E. Testing Equipment: Furnish testing equipment for treatment control. Equipment shall include apparatus for determination of pH, treatment residual and bleed-off control as minimum requirements. Furnish training, instruction, and continuing supervision of Owner's operating personnel during the service period.

F. Water Management Program: Manufacturer shall provide a water management and service program for a period of one year from startup of the system to include the following:



1. Initial water analysis and recommendations.

2. System installation and start up assistance.

3. Training of operating personnel.

4. Periodic field service, consultation (all of the above performed by a qualified full time local representative), laboratory and technical assistance from the manufacturer's engineering staff.

2.7 ELECTRIC HEATING CABLE

A. Acceptable Manufacturer: Thermon FLX, or Chromalox, Raychem.

B. Electric heating cable for exterior piping noted on Drawings shall be self-regulating two wire cable, rated 5.0 watts per foot at 120 volts.

C. Material: Cable shall consist of two 16 AWG nickel plated copper bus wires embedded in parallel in a polymer core tape. Heat tape shall be covered with tinned copper braid and a thermoplastic rubber outer jacket.

D. Furnish and install SPST, solid state, line sensing waterproof temperature controller.

PART 3 - EXECUTION

3.1 INSTALLATION

A. Steam and Condensate Piping

1. Steam supply mains shall be run as indicated and shall be uniformly graded in direction indicated, a minimum of 1 inch in 40 feet of run. Provision shall be made for expansion and all piping shall be properly supported. Where horizontal runs change size, eccentric reducing fittings shall be used.

2. Steam supply and return branches shall be taken from mains at a 45 degree angle where possible, and shall pitch down towards mains at least 6 inches in 20 feet.

3. Condensate return lines shall be uniformly graded in direction indicated, a minimum of 1 inch in 40 feet of run.

4. Following the installation and balancing of all piping systems, gage cocks at all pressure gages shall be closed to prevent damage to the gage movement.

B. Hydronic Piping

1. Water piping shall be installed with a view for even flow and proper venting to and from all apparatus without pockets. Piping system shall be installed for quick, sure and positive drainage. Entire piping system shall present a neat appearance both as to workmanship and grouping. All mains shall pitch up to a high point with automatic air vents provided for air escapement. Provide drains at all system low points.

2. Provide sufficient access for servicing concealed air vents and drain valves. Refer to access panels specified in Section 230505, HVAC Basic Materials.



3. Before the boilers or water systems are filled, the water treatment supplier shall be consulted. Treatment chemicals shall be added at time of initial charge.

4. Following the installation and balancing of all piping systems, gage cocks and ball valves at all pressure gages shall be closed to prevent damage to the gage movement.

C. Heat Transfer Equipment

1. Install heat transfer equipment and complete piping connections in accordance with equipment manufacturer's recommendations. Submit manufacturer's printed installation instructions with operating and maintenance data at completion of Work.

2. Piping systems traced with electric heating cable shall be labeled ELECTRIC TRACED on exterior of piping insulation. Refer to pipe identification, Section 230515, HVAC Piping Specialties.

D. Chemical Water Treatment

1. All closed loops shall have a bypass feeder (pot feeder) piped into the circulation line, so that chemical treatment can be introduced into the system. Feeder shall be installed in strict accordance with recommendations of water treatment supplier service representative who is to be consulted prior to installation.

2. Bypass feeders shall be installed across the circulation pump to allow for a minimum 5 psi pressure drop. The discharge side of the pump shall be piped to the bottom of the feeder and the suction side piped to the top to allow an upward flow of material in the feeder. The shot feeder shall be located at least 12 inches off the floor, and manual ball valves shall be located near the bypass feeder to isolate and drain the bypass feeder. One ball valve shall include a memory stop set to keep a trickle flow through the feeder to keep seals wetted.

3.2 TESTS

A. Steam and condensate piping shall be leak tested at one and one half times the maximum system working pressure, but not less than 100 psi static pressure for four hours with pressure noted each hour. All leaks shall be repaired and proven leakproof by retesting.

B. Water piping shall be leak tested at one and one half times the maximum system design pressure, but not less than 100 psi static pressure for four hours with pressures noted each hour. All leaks shall be repaired and proven leakproof by retesting.

C. Following tests for piping, systems shall be cleaned by wasting water until it becomes clear after which all strainers shall be cleaned.

3.3 CLEANING, FLUSHING AND FILLING

A. Following tests for piping, systems shall be flushed by wasting water until it becomes clear. Use water meter to fill, record, and tag (permanent tag) the system with the actual system volume. Chemical cleaner shall be added to remove grease, mill oil, organic soil, flux, iron oxide, etc. All terminal control valves and valves at end of runs shall be opened so that cleaner is circulated through the whole system. After cleaning, all strainers shall be flushed, and strainer screens



cleaned or replaced. Once closed loop is chemically cleaned, system shall be dumped and flushed with water so that all cleaning chemical is removed from the system.



CENTRAL STATION AIR HANDLING UNITS 237310 - 1

SECTION 237310 – CENTRAL STATION AIR HANDLING UNITS

PART 1 - GENERAL

1.1 WORK INCLUDED

A. The Work of this Section shall consist of the labor, materials and equipment required for installation of central station air handling units and associated components.


A. Section 230505, HVAC Basic Materials: Equipment nameplates and motors

B. Section 230535, HVAC Sound and Vibration Control: Vibration isolators.

C. Section 231020, Variable Frequency Drives: VFDs.

D. Section 238410, Humidity Control Equipment: Humidifiers.

E. Section 239010, Building Automation System: Controls.

F. Section 239510, Testing, Adjusting, and Balancing of HVAC System: Testing, adjusting, and balancing procedures.

1.3 SUBMITTALS


1. Rooftop Air Handling Units

2. Wiring diagrams for power and 120 volt circuit for access section lights and receptacles to single point power connection.

3. Roof Adapter Curbs

B. Manufacturer's published fan curve data shall be included with shop drawing submittal data for air handling units. Fan curve information shall include operating point, RPM curve for operating point, minimum and maximum RPM curves for fan, system curve and brake horsepower curves. Tabular fan performance charts are not an acceptable substitute for fan curve data. Shop drawing submittals for air handling equipment will be returned withoutEngineer's review if the fan curve data is not included with the submittal.

C. For units with multiple fans, a fan curve shall be provided showing the performance of the entire bank of fans at design conditions. In addition, a fan curve shall be provided showing the performance of each individual fan in the bank of fans at design conditions. Finally, a fan curve shall be provide showing the performance of the bank of fans when one fan is down. The percent redundancy of the bank of fans with one fan down shall be noted on the fan curve or in the tabulated fan data.




A. Electrical Components, Devices, and Accessories: Listed and labeled as defined in NFPA 70, by a qualified testing agency, and marked for intended location and application.

B. NFPA Compliance: Comply with NFPA 90A for design, fabrication, and installation of air-handling units and components.

C. ARI Certification: Air-handling units and their components shall be factory tested according to ARI 430, "Central-Station Air-Handling Units," and shall be listed and labeled by ARI.

D. Fan rating shall be AMCA certified.

1.5 SOURCE QUALITY CONTROL

A. Fan Sound-Power Level Ratings: Comply with AMCA 301, "Methods for Calculating Fan Sound Ratings from Laboratory Test Data." Test fans according to AMCA 300, "Reverberant Room Method for Sound Testing of Fans." Fans shall bear AMCA-certified sound ratings seal.

B. Fan Performance Rating: Factory test fan performance for airflow, pressure, power, air density, rotation speed, and efficiency. Rate performance according to AMCA 210, "Laboratory Methods of Testing Fans for Aerodynamic Performance Rating."

1.6 EXTRA MATERIALS

A. Furnish extra materials that match products installed and that are packaged with protective covering for storage and identified with labels describing contents.

1. Filters: One set(s) for each air-handling unit.

2. Fan Belts: One set(s) for each air-handling unit fan.

PART 2 - PRODUCTS

2.1 ROOFTOP AIR HANDLING UNIT

A. Manufacturer

1. Basis of Design: Trane.

2. Other Acceptable Manufacturers: Carrier Corp., Johnson Controls, Inc., McQuay International.

3. Substitutions: None.

B. Arrangement

1. Arrange air handling unit sections as indicated on Drawings.



C. Unit Construction

1. Generala. Designed and built specifically for outdoor installation on top of roof curb or

adapter roof curb as indicated on Drawings. Weatherized indoor air handlers will not be acceptable.

b. Leakage Performance: All casings shall be constructed to minimize leakage and shall be in accordance with duct and plenum leakage class required by the International Energy Conservation Code or better.1) The casing air leakage shall not exceed leak class 6 (CL = 6) per ASHRAE

111 at specified casing static pressure (P in inches water gage) where maximum casing leakage (cfm/100 ft2 of casing surface area) = CL x P0.65.

2) Air leakage shall be determined at 1.25 times maximum casing static pressure up to a maximum of +/- 8 inches water gage. Specified air leakage shall be accomplished without the use of calk. Total estimated air leakage shall be reported for each unit in CFM, as a percentage of supply air, and as an ASHRAE Leakage Class.

2. Floora. Aluminum, insulated, with tread plate in fan and filter access sections.

3. Wall and Roof Panelsa. Panels and unit roof double wall construction with panel insulation system

providing a minimum R-13. Insulation shall conform to NFPA 90 requirements.

4. Unit Painta. Exterior surface of unit casing prepared and coated with minimum 1.5 mil enamel

finish. Factory-finish able to exceed 500 hour salt spray solution (5 percent) without any sign of red rust when tested in accordance with ASTM B117. Manufacturer’s standard paint color.

5. Unit Roofa. Inner roof surface installed to prevent air bypass between internal components.

Outer roof sloped a minimum 0.125 inches per foot either from one side of unit to the other, or from center to sides, with overhangs.

6. Pipe Cabineta. External, factory-assembled and supplied of construction to match unit casing. b. Shipped separately and field-installed external to the unit. c. Manufacturer’s standard internal pipe cabinet will be acceptable.

7. Primary Drain Pansa. Furnish full length in all coil and humidifier sections.b. Insulated, double wall 304 stainless steel.c. Fully accessible and cleanable.d. Designed in accordance with ASHRAE 62.1 being of sufficient size to collect all

condensation produced from the coil and sloped in two planes, pitched toward drain connections, promoting positive drainage to eliminate stagnant water conditions when unit is installed level and trapped per manufacturer’s requirements.

e. Drain connections of same material as pans, located at the lowest point of the pan and accessible from outside the unit on both sides. Threaded connection with stainless steel drain plug. The connection shall be sized to preclude drain pan overflow under any normally expected operating condition.



8. Intermediate Drain Pansa. Provide for units with stacked coils to collect condensate from each row. b. Construction same as specified for primary drain pan. c. Intermediate drain pan shall begin at the leading face of the coil and be of

sufficient length extending downstream to prevent condensate from passing through the airstream of the lower coil.

d. Drop tubes to guide condensate to the primary drain pan to prevent flooding of lower coils.

9. Access Doorsa. All components shall be accessible via access doors and removable panels. Provide

on drive side of fan sections.b. Formed and reinforced double wall and insulated panels of same materials and

properties as casing. c. At least 18 inches wide by full height of unit casing up to a maximum height of 72

inches.d. Minimum of two ball-bearing hinges or stainless steel piano hinge on each door

with two wedge-lever-type latches, operable from outside and inside the unit. Doors attached by screws will not be acceptable.

e. Arranged to open against air-pressure differential. f. Neoprene gaskets around full perimeter to prevent air leakage.

D. Marine Lights and Receptacles

1. Furnish where indicated on Drawings.

2. Lights: Factory-mounted, energy efficient, long-life fluorescent, UL listed for wet locations with junction box.

3. Receptacles: GFCI.

4. Dedicated 120 volt circuit separate from main power to unit. Wired in field.

E. Roof Curb, Adapter Type (HP-AHU2)

1. Manufacturer: Thycurb or approved equal.

2. Designed to set on existing concrete slab.

3. Full perimeter.

4. 26 inches high.

5. Separate supply air and return air sections with insulated divider.

6. Construction: 14 gage galvanized steel, 2 inch base flange, sidewalls constructed with 1-1/2 inch foil faced insulation, 1 inch insulated floor pan, 1 inch insulated top pan.Insulated areas double wall construction so insulation is not open to air stream.

F. Roof Curb, Standard Type (HP-AHU4 & HP-AHU5)

1. Provided by unit manufacturer.

2. Constructed of galvanized steel with a wood nailing strip factory installed.

3. Full perimeter.

4. Provide jointers, gaskets and bolts for assembly.



5. Unit condensate drainage system sized and trapped outside unit roof curb to provide adequate condensate drainage at specified fan suction pressures.

6. Curb designed so that unit will be installed level.

G. Fan Sections

1. Generala. Fan performance certified in accordance with ARI Standard 430.b. AMCA seal.c. Fan sections containing multiple fans shall be provided as indicated on the

schedule and drawings. Each fan shall operate in parallel to each other fan in the array. The fans shall be SWSI plenum type with high efficient AF blades. Fans shall be direct-driven. Fan wheels shall be aluminum. The horsepowercharacteristic of the fans shall be non-overloading.

2. Wheelsa. Housed Fan: Double width, double inlet, multi-blade type. Forward curve (FC),

backward inclined (BI) or airfoil (AF) blade design as required for stable operation and optimum energy efficiency.

b. Plenum Fan: Single width, single inlet, multi-blade type plenum (plug) fans with backward-inclined airfoil (AF) blade design.

c. Statically and dynamically balanced at the factory as a complete fan assembly –fan wheel, motor, drive, and belts.

d. Fan wheels keyed to shaft.

3. Shaftsa. Designed for continuous operation at maximum-rated fan speed and motor

horsepower, and with field-adjustable alignment. b. Turned, ground, and polished hot-rolled solid steel with keyway. Ship with a

protective coating of lubricating oil.c. Designed to operate at no more than 70 percent of first critical speed at top of fan's

speed range.

4. Bearingsa. Self-aligning, antifriction bearings with an L10 life of 200,000 hours. Bearings

shall be equipped with extended grease lines allowing for lubrication from the drive side of the fan from a readily accessible location.

5. Fan Isolationa. Fan isolated from unit casing by a flexible connection.b. Fan and motor assembly internally isolated from unit casing with 1 inch (nominal

4000 cfm and under) or 2 inch (above 4000 cfm) deflection spring isolators, furnished and installed by unit manufacturer.

c. Fan and motor assembly isolation system shall be designed to resist loads produced by external forces such as earthquakes. The isolation system shall be approved by the California Office of Statewide Planning and Development (OSHPD) for seismic zones.

6. Belt Drivesa. Factory mounted drive assemblies with adjustable alignment and belt tensioning.b. Drives shall be constant speed with fixed pitch sheaves.c. Selected at a minimum of 1.2 service factor based on rated nameplate HP.



d. Belts shall be oil-resistant, heat-resistant, non-sparking and anti-static in matched sets for multiple-belt drives. Provide a minimum of 2 belts, each rated to carry full load in case one breaks.

7. Motorsa. Integrally mounted to an isolated fan assembly.b. Mounted inside unit on adjustable base to permit drive-belt adjustment.c. Refer to Section 230505 for required characteristics.

8. Fan Modulationa. Factory mounted variable frequency drive to control fan speed for variable air

volume applications.b. Where sections containing multiple fans are used, each fan shall have an individual

variable frequency drive.c. Refer to Section 231020.

9. Belt Guard: Housed fan modules shall be provided with expanded metal mesh belt guard to allow inspection of belts and pulleys without removal. Belt guard shall be attached with hinges and/or quick release fasteners operable without tools. A tachometer hole shall be aligned with the fan shaft.

10. Plenum (plug) fan modules shall be provided with an expanded metal door guard to prevent unauthorized entry to fan module.

11. Fan sections containing multiple fans shall be controlled using a common control signal, such as the duct static control signal, to modulate the fan speed.

H. Fan Inlet Airflow Measurement System

1. Acceptable Manufacturer: Ebtron GTA116-F, or as approved.

2. Application: Factory installed on inlet of supply and return fans to measure fan airflow directly or to measure differential pressure that can be used to calculate fan airflow.

3. Calibrated Range: 0 to 10,000 fpm.

4. Sensor Constructiona. Two bead-in-glass thermistors in a GFP sensor housing sealed with epoxy. b. Stainless steel brackets. c. Throat mount or face mount as recommended by fan manufacturer. d. Sensors shall not affect the submitted fan performance and acoustical levels.

Devices that obstruct the fan inlet or outlet will not be acceptable.

5. Accuracy: Factory calibrated plus or minus 2 percent for airflow when operating within stable fan operating conditions. Plus or minus 0.15 degrees F for temperature.

6. Transmitter: Heavy duty with industrial grade IC’s and aluminum chassis.

7. Probe/Transmitter Cable: Plenum rated with positive locking connector and gold-plated pins.

8. Output Interface: Selectable 4-20 mA or 0-10 VDC linear airflow/temperature output to building automation system. Airflow signal shall be proportional to air velocity.

I. Coil Sections

1. General: a. Coils manufactured by the unit manufacturer.



b. All coils enclosed within unit casing. Coil headers and return bends shall not be exposed.

c. Coils shall be mounted in unit casing to be accessible for service and removable from unit side without disassembling the unit.

d. Capacities, pressure drops and selection procedure shall be certified in accordance with ARI 410.

e. Provide at least 24 inches of access space upstream and between each coil with doors to facilitate installation of sensors and for inspection and cleaning.

f. All coils shall be air vented and arranged for proper drainage. g. Fabricate coil section to allow removal and replacement of each coil segment and

to allow in-place access for service and maintenance of coil(s). Coils shall not act as structural component of unit or support other coils.

h. Units with stacked coils shall have an intermediate drains pan to collect condensate from each row of coils. Intermediate drain pans shall have drop tubes to guide condensate to the main drain pan, thus preventing flooding of lower coils that would result in moisture carryover.

i. On applications that will condense moisture, such as typical air conditioning cooling/dehumidification and exhaust air heat recovery provide coil casings of minimum 0.0625 inch thick stainless steel channel frames.

j. Access doors shall be provided on upstream side of all coils to facilitate inspection and cleaning.

2. Water Coilsa. Aluminum fins and seamless copper tubes. Fins shall have collars drawn, belled

and firmly bonded to tubes by means of mechanical expansion of tubes.b. Casing, tracks and supports

1) Hot Water: Galvanized steel.2) Chiller Water: Stainless steel.

c. Round copper headers with vent connections at the highest point and drain connections at the lowest point. Steel pipe headers will not be acceptable.

d. Factory tested to 300 psig according to ARI 410 and ASHRAE 33.e. Supply and return header connections shall be clearly labeled such that direction of

coil water-flow is counter to direction of unit air-flow.

J. Filter Sections

1. Filter section(s) shall have angled filter racks and guides to accommodate specified filter types and thicknesses, at least one access door for filter replacement, and filter block-offs to prevent air bypass around filters.

2. Final Filter Section: Filter section with front loading frames and clips.

3. Factory installed Magnehelic gage to read pressure drop across each filter bank.

4. Filter media shall be UL 900 listed, Class I or Class II.

5. Pre-Filters: Tri-Dim Tri-Dek 3-ply panel and link filters. No substitutions Ephrata Hospital standard.

6. Final Filters: Tri-Dim MV95. No substitutions Ephrata Hospital standard.

K. Mixing Sections

1. Outside Air Measuring Station with Integral Dampersa. Acceptable Manufacturer: Ruskin AMS050, or as approved.



b. Dampers: Heavy gage aluminum, airfoil-shaped damper blades in an aluminum frame with flexible metal compression jamb seals, neoprene blade edge seals, and molded synthetic bearings.

c. Airflow Monitoring Blades: Heavy gage aluminum, fixed in galvanized steel frame.

d. Air Straightener: 3000 series aluminum alloy honeycomb section contained in a galvanized steel sleeve attached to damper blade frame.

e. Airflow Range: 400 to 5,000 feet per minute face velocity. f. Leakage Rate: Not exceeding 2 cfm per square foot at 1 inch water gage.g. Actuator: Electric, factory-mounted and tested. h. Transducer: LCD display, selectable 4-20 mA or 0-10 VDC output to building

automation system. Signal shall be proportional to air velocity.i. AMCA certified.

2. Outside Air/Return Air, Relief Air Dampersa. Separate dampers and operators to modulate volume of minimum outside,

economizer, return and relief air. b. Airfoil design with metal compressible jamb seals and extruded vinyl blade edge

seals, low leakage (2%) type on all blades.c. Dampers shall be designed in accordance with ASHRAE Guideline 16:

1) Opposed blade damper configuration for outside and relief air. 2) Parallel blade configuration for return air. 3) Minimum outside air damper sized for a minimum of 200 fpm at absolute

minimum outside airflow rate. d. Stainless steel sleeve bearings. e. Maximum 60 inches damper blade length. f. Leakage Rate: Not exceeding 3 cfm/square foot at 1 inch water gage and 8

cfm/square foot at 4 inches water gage.g. Actuators: Refer to Section 239010.

L. Other Sections

1. Inlet Hooda. Designed to not permit moisture to enter the unit at 100 percent airflow through

hood. b. Heavy-duty bird screen.

2. Access/Inspectiona. Supplied in length(s) and position(s) indicated on Drawings with access door to

allow additional access/inspection and space for field installed components.

3. Air Blendera. Supplied by unit manufacturer and designed to properly mix outdoor and return air

to prevent air stratification across the anticipated airflow range of each application. b. Fixed blades with no moving parts.c. Geometrically scaled to ensure consistent performance across full range of

applications. Blenders that are not geometrically scaled will not be permitted. d. Installation in unit shall be in accordance with air blender manufacturer’s

installation instructions and SMACNA plenum construction guidelines. Provide reinforcement as required to eliminate excess vibration or deflection of blank-off plenum.

4. Humidifier



a. Access section to accommodate field-installed humidifier. b. Refer to Section 238410.

5. Diffusera. Supplied immediately downstream of the supply fan section to provide equal air

distribution to downstream components.

6. Discharge Plenuma. Supplied to effectively turn air and provide sound attenuation.b. Perforated double wall panels as specified for unit casing.

M. Ultraviolet Germicidal Lights

1. Acceptable Manufacturer: Sanuvox Coilclean IL. No substitutions Ephrata Hospital standard.

2. Generala. Emitters and fixtures for ultraviolet-C (UV-C) lamps designed for use inside an

HVAC system.b. Lamps installed in sufficient quantity and arranged so as to provide an equal

distribution of UV-C energy on the cooling coil and drain pan.

3. Lampsa. Individual Lamp Output: Measured in an ASME nozzle test apparatus using a 45

degree F air stream moving at not less than 400 feet per minute. b. Output: Minimum of 350 microwatts per square centimeter measured at a distance

of one meter in the 245 nm to 266 nm band. c. Lamp Life: Guaranteed for 12,000 hours.d. Lamps shipped separately for field installation to minimize the chance for bulb

damage.

4. Electricala. Power Supplies: High-efficiency electronic type matched to the emitters and

capable of producing the specified output intensity. b. Environmental Range: 45 degrees F to 170 degrees F with relative humidity up to

100 percent and air velocities up to 2000 fpm. c. Power Source Enclosure: Aluminum, mounted in the field.

5. Mountinga. UV-C Lamps: Clamp-mounted for easy installation, positioning and maintenance

onto a field supplied support structure. b. Support Structure and Mounting Hardware: Non-corrosive materials.

6. Performancea. UV-C lamps mounted to a parabolic back-reflector to redirect 90 percent of the

emitted UV-C onto the cooling coil and drain pan. b. Equal amounts of UV-C energy shall strike the drain pan, either directly or

indirectly through reflection. c. Irradiation intensity large enough so that bacteria requiring a lethal UV dose of

100,000 microwatts/cm2 will not survive more than 10 minutes anywhere on the surface of the coil.

7. Safetya. Interlock: Provide a safety interlock to de-energize power to lights when access

door is open.



b. Warning Sign: Provide a three-color warning sign on the air handling unit access door to read: “DANGER: ULTRAVIOLET LIGHT IN USE. POTENTIAL FOR BURNS AND LOSS OF EYESIGHT.

N. Controls: Building Automation System Controls: Refer to Section 239010.

PART 3 - EXECUTION

3.1 INSTALLATION

A. General:

1. Install air handling units and complete piping and wiring connections in accordance with equipment manufacturer's published installation instructions and recognized industry standards. Submit manufacturer's published installation instructions with operating and maintenance data at completion of Work.

2. Coordinate installation of air handling units with other Work, including roof decking,ductwork, and piping.

3. Provide access space around air handling units for service as indicated on Drawings and as recommended by manufacturer.

B. Support:

1. Install units level to prohibit excessive vibration and insure longer life.

2. Roof Mounted Units: Roof curbs provided as Work of this Section shall be coordinated with existing roof type. Product data submittals for roof curbs, with, or without, cants will be considered compatible with existing roof type.

C. Piping Connections:

1. Refer to Division 23 piping and specialty sections and details on Drawings. Provide piping, valves, gages, supports, flexible connectors and accessories as indicated.

2. Install piping adjacent to air handling units to allow service and maintenance.

3. Install condensate drain, complete with trap, on all cooling coils furnished with drain pan. Provide trap seal according to unit manufacturer's recommendations.

D. Ductwork Connections

1. Connect ductwork to air handling units mounted on vibration isolators with flexible connections.

E. Electrical Wiring:

1. Install electrical devices furnished by manufacturer but not specified to be factory –mounted. Furnish copy of manufacturer’s wiring diagram to Electrical Contractor.

2. Verify that electrical wiring installation is in accordance with manufacturer’s submittal and installation requirements of Division 26 sections.

3. Provide positive equipment ground for air handling unit components.



4. Do not proceed with equipment start-up until wiring installation is acceptable to equipment installer.

F. Do not operate units for any purpose, temporary or permanent, until ductwork is clean, filters are in place, bearings lubricated, and fans have been test run under observation. Replace temporary filters used during construction with new, clean filters prior to start of air system testing and balancing.


A. Upon completion of installation of units, and after motor has been energized with power source, perform the following tests and inspections with the assistance of a factory-authorized service representative to demonstrate compliance with requirements:

1. Verify that shipping, blocking, and bracing are removed.

2. Verify that unit is secure on mountings and supporting devices and that connections to ducts and electrical components are complete. Verify that proper thermal-overload protection is installed in motors, starters, and disconnect switches.

3. Verify that cleaning and adjusting are complete.

4. Disconnect fan drive from motor, verify proper motor rotation direction, and verify fan wheel free rotation and smooth bearing operation. Reconnect fan drive system, make final alignments of pulleys and belt tension, and install belt guards.

5. Adjust damper linkages for proper damper operation.

6. Verify lubrication for bearings and other moving parts.

7. Verify that manual and automatic volume control and fire and smoke dampers inconnected ductwork systems are in fully open position.

B. See Section 239510 for testing, adjusting, and balancing procedures. Prepare and submit test and inspection reports.

C. Test and adjust controls and safeties. Controls and equipment will be considered defective if they do not pass tests and inspections.

D. Remove and replace malfunctioning units that cannot be satisfactorily corrected and retest as specified above.

3.3 START-UP SERVICES

A. Manufacturer shall provide start-up service on units to include control interface with BAS.



UNITARY EQUIPMENT 238110 - 1

SECTION 238110 – UNITARY EQUIPMENT

PART 1 - GENERAL

1.1 WORK INCLUDED

A. The Work of this Section shall consist of the labor, materials and equipment required for installation of unitary equipment.


A. Section 230535, HVAC Sound and Vibration Control: Vibration isolators.

B. Section 231020, Variable Frequency Drives: VFDs.

C. Section 239010, Building Automation System: Controls

D. Section 239510, Testing, Adjusting, and Balancing of HVAC System: Testing, adjusting, and balancing procedures.

1.3 SUBMITTALS


1. Ductless Split System Air Conditioners

2. Packaged Rooftop Heating-Cooling Units

B. Product Data: Include rated capacities, furnished specialties, and accessories for each type of product indicated. Include performance data in terms of capacities, outlet velocities, static pressures, sound power characteristics, motor requirements, and electrical characteristics.

C. Shop Drawings: Diagram power, signal, and control wiring.

D. Operation and Maintenance Data: To include in operation, and maintenance manuals.


A. Electrical Components, Devices, and Accessories: Listed and labeled as defined in NFPA 70, Article 100, by a testing agency acceptable to authorities having jurisdiction, and marked for intended use.

B. ASHRAE Compliance: Applicable requirements in ANSI/ASHRAE Standard 62.1, Section 5 -"Systems and Equipment" and Section 7 - "Construction and System Start-up."

C. Minimum Energy Efficiency: ANSI/ASHRAE/IESNA Standard 90.1: Comply with applicable requirements in Section 6 - "Heating, Ventilating, and Air-Conditioning”.



1.5 EXTRA MATERIALS

A. Furnish extra materials described below that match products installed and that are packaged with protective covering for storage and identified with labels describing contents.

1. Filters: One set of filters for each unit.

2. Fan Belts: One set of belts for each unit.

PART 2 - PRODUCTS

2.1 DUCTLESS SPLIT-SYSTEM AIR CONDITIONER

A. Acceptable Manufacturer: Mitsubishi Mr. Slim Series, or Daikin AC, EMI International, Sanyo.

B. System shall be complete with wall mounted indoor evaporator blower, matching outdoor condenser-compressor unit and microprocessor remote controller.

C. Indoor Evaporator Blower

1. Cabinet:a. Enameled steel with removable panels on front and ends.b. Insulation: Faced, glass-fiber duct liner.c. Drain Pan: Galvanized steel, with connection for drain; insulated and complying

with ASHRAE 62.1-2004.d. Airstream Surfaces: Surfaces in contact with the airstream shall comply with

requirements in ASHRAE 62.1-2004.

2. Refrigerant Coil: Copper tube, with mechanically bonded aluminum fins, complying with ARI 210/240, and with thermal-expansion valve.

3. Fan: Direct drive, centrifugal.

4. Fan Motors: Refer to Section 230505.

5. Filters: Disposable, with ASHRAE 52.2 MERV rating of 6 or higher.

6. Wiring Terminations: Connect motor to chassis wiring with plug connection.

7. Condensate Pump: Unit shall be provided with integral condensate pump.

D. Air-Cooled Condenser-Compressor Unit

1. Casing: Steel, finished with baked enamel in manufacturer’s standard color, removable panels for access to controls, weep holes for water drainage, and mounting holes in base.Provide brass service valves, fittings, and gage ports on exterior of casing.

2. Compressor: Hermetically sealed with crankcase heater and mounted on vibration isolation. Compressor motor shall have thermal- and current-sensitive overload devices, start capacitor, relay, and contactor.

3. Compressor Type: Scroll.

4. Two-speed compressor motor with manual-reset high-pressure switch and automatic-reset low-pressure switch.

5. Refrigerant: R-407C or R-410A.



6. Refrigerant Coil: Copper tube, with mechanically bonded aluminum fins, complying with ARI 210/240, and with liquid sub cooler.

7. Fan: Aluminum-propeller type, directly connected to motor.

8. Motor: Permanently lubricated, with integral thermal-overload protection.

9. Low Ambient Kit: Permits operation down to 0 degrees F.

E. Controls

1. Thermostat: Remote low voltage with sub base to remotely control compressor and evaporator fan, with the following features:a. Compressor time delay.b. 24-hour time control of system stop and start.c. Liquid-crystal display indicating temperature, set-point temperature, time setting,

operating mode, and fan speed.d. Fan-speed selection, including auto setting.

2. Automatic-reset timer to prevent rapid cycling of compressor.

F. Refrigerant Line Kits: Soft-annealed copper suction and liquid lines factory cleaned, dried, pressurized, and sealed; factory-insulated suction line with flared fittings at both ends.

2.2 PACKAGED ROOFTOP HEATING COOLING UNIT

A. Acceptable Manufacturer: Trane or Carrier, Daikin.

B. Type: Cooling with hot water heat.

C. General: Designed for outdoor rooftop installation on full roof curb. Completely factory assembled and tested, piped, internally wired, fully charged with refrigerant, compressor oil and shipped in one piece. Provide non-fused disconnect switches and all operating and safety controls factory installed. Units shall be factory run tested. Cooling capacity rated in accordance with ARI 360. Unit shall be UL listed. Units shall have decals and tags to aid in service and indicate caution areas. Provide electrical diagrams on long life water resistant material attached to control panel doors.

D. Casing: Exterior panels shall be zinc coated steel, phosphatized, and finished in manufacturer's standard painted finish. Screws shall be coated with zinc plus zinc chromate. Hinged access panels shall be 18 gage steel with tiebacks to secure door in open position to provide access to return air fan section, filters and heating section. Refrigeration components, supply air fan, and compressor shall be accessible through removable panels. Unit control panel shall be accessible through hinged access panel with quick release latches. All access doors and panels shall be sealed with neoprene gaskets. Interior surfaces or exterior casing members shall be insulated with 1/2 inch fiberglass insulation. Drains shall be provided on each side of the condenser section. Unit base shall be watertight with 14 gage formed load bearing members, formed recess and curb overhang. Unit lifting lugs shall accept chains or cables for rigging. Lifting lugs shall also serve as unit tie down points.



E. Refrigeration System:

1. Hermetically sealed compressors with crankcase heater and mounted on vibration isolation. Compressor motors shall have thermal- and current-sensitive overload devices, start capacitor, relay, and contactor.

2. Compressor Type: Scroll.

3. Furnish at least one variable speed compressor capable of speed modulation from 25 hertz to a maximum of 100 hertz.

4. Furnish the remaining compressors as constant speed.

5. Furnish compressor motors with manual-reset high-pressure switch and automatic-reset low-pressure switch.

6. Refrigerant: R-407C or R-410A.

F. Cooling Coil: Constructed of 1/2 inch OD seamless copper tubing mechanically bonded to heavy duty aluminum fins of configurated design. Coil shall be dual circuited with independent thermal expansion valves. Factory pressure and leak tested at 300 psig.

G. Condenser Coil: Constructed of configurated aluminum fin secondary surface mechanically bonded to primary surface of 3/8 inch OD seamless copper tubing. Provided with subcooling circuit(s) with liquid accumulator(s). Factory tested at 450 psig air pressure. Vacuum dehydrated.

H. Condenser Fans and Motors: Vertical discharge, direct drive fans, statically balanced, with steel blades and zinc plated steel hubs. Three phase motors with permanently lubricated ball bearings, built in current and thermal overload protection, and weathertight slingers over bearings.

I. Supply Air Fan: Two, double inlet, forward curved fans mounted on common shaft with fixed sheave drive. All fans dynamically balanced and tested in factory. Supply fan test run in unit as part of unit test. Unit reaches rated rpm before fan shaft passes through first critical speed. Fan shaft mounted on two grease lubricated ball bearings designed for 200,000 hours average life. Provide optional extended grease lines to allow greasing of bearings from unit filter section. Fan motor and fan assembly shall be mounted on common base to allow consistent belt tension with no relative motion between fan and motor shafts. Entire assembly shall be completely isolated from unit and fan board by spring isolators.

1. Fan Modulationa. Factory mounted variable frequency drive to control supply fan speed. VFD

mounted within the unit casing.b. Refer to Section 23 10 20.

J. Filters: Filters shall mount integral within unit and shall be accessible by hinged access panels.Provide 2 inch high efficiency media filters MERV 8.

K. High Efficiency Motor: Provide high efficiency motors for supply and return fan.

L. Exhaust Return Air Section:

1. Provide modulating 100 percent return fan operation consisting of two double inlet, forward curved fans mounted on common shaft with fixed sheave drive. All fans shall be



dynamically balanced and tested in factory. Fan shaft shall be mounted on two grease lubricated ball bearings designed for 200,000 hour average life. Provide extended grease lines to allow greasing of bearings from unit filter section. Fan motor and assembly shall be mounted on common base to allow consistent belt tension with no relative motion between fan and motor shafts. Entire assembly shall be completely isolated from unit and fan board by double deflection, rubber in shear isolators on motor sizes larger than 5 horsepower. Provide spring type vibration isolators. Discharge dampers at unit outlet shall modulate exhaust air flow in response to outdoor air damper position. Dampers shall modulate in response to building pressure.

2. Fan Modulationa. Factory mounted variable frequency drive to control return fan speed. VFD

mounted within the unit casing.b. Refer to Section 23 10 20.

M. Outdoor Air: Provide full economizer cycle operated through primary temperature controls to automatically utilize outdoor air for "free" cooling. Automatically modulated return and outdoor air dampers shall maintain proper temperature in conditioned spaces. Provide an automatic lockout when outdoor enthalpy temperature is too high for proper cooling. Adjustable minimum position control shall be standard and located on damper motor. A spring return motor shall ensure closure of outdoor air dampers during unit shutdown or power interruption. Mechanical cooling shall be available to aid economizer cycle at any ambient. Provide low leak economizer dampers with a leakage rate of 1 percent based on testing data completed in accordance with AMCA 575.

N. Outdoor Air Flow Measurement: Furnish a factory mounted air flow measuring station located in the outside air opening.

O. Heating Section: Shall be completely assembled and factory installed system integral within the base unit. Coils shall be ARI certified type W water heating coils. Coils shall be mounted to provide complete drainage of coil. Provide hot water modulating valve with actuator.

P. Roof Curb: Shall be constructed of 14 gage zinc coated steel with nominal 2 inch by 2 inch nailer setup. Supply return air opening shall be gasketed. Curb shall be shipped knocked down for easy field assembly. Provide channel for field adjustment of return air opening location. Curb shall be manufactured to National Roofing Contractors Association guidelines.

Q. Controls:

1. Provide VAV control with variable frequency drives.

2. Unit shall be provided with microprocessor controller to operate unit refrigeration system from discharge air temperature and supply and return fans from static pressure.

3. Furnish unit with Lon Communication Interface Module to transfer information to control system specified in Section 23 90 10.

4. Refer also to Section 23 90 10.



PART 3 - EXECUTION

3.1 INSTALLATION

A. Install unitary equipment and complete piping connections in accordance with equipment manufacturer's recommendations. Submit manufacturer's printed installation instructions with operating and maintenance data at completion of Work.

B. Filters installed in unitary equipment during the construction period will be considered temporary. Provide new filters at time of Owner acceptance of Work.

C. Piping Connections:

1. Refer to Division 23 piping and specialty sections and details on Drawings. Provide piping, valves, gages, supports, flexible connectors and accessories as indicated.

2. Install piping adjacent to allow service and maintenance.

3. Install condensate drain, complete with trap, on rooftop units in accordance with manufacturer's recommendation.

D. Install condensate drain, complete with trap, on all cooling coils furnished with drain pan. Provide trap seal according to equipment manufacturer's recommendations.

E. Install pre charged refrigerant piping in accordance with equipment manufacturer's recommendations.

F. Electrical Wiring:

1. Install electrical devices furnished by manufacturer but not specified to be factory –mounted. Furnish copy of manufacturer’s wiring diagram to Electrical Contractor.

2. Verify that electrical wiring installation is in accordance with manufacturer’s submittal and installation requirements of Division 26 sections.

3. Provide positive equipment ground for air handling unit components.

4. Do not proceed with equipment start-up until wiring installation is acceptable to equipment installer.

G. Do not operate units for any purpose, temporary or permanent, until ductwork is clean, filters are in place, bearings lubricated, and fans have been test run under observation. Replace temporary filters used during construction with new, clean filters prior to start of air system testing and balancing.


A. Perform the following field tests and inspections and prepare test reports:

1. Leak Test: After installation, charge system and test for leaks. Repair leaks and retest until no leaks exist.

2. Operational Test: After electrical circuitry has been energized, start units to confirm proper motor rotation and unit operation.



3. Test and adjust controls and safeties. Replace damaged and malfunctioning controls and equipment.

B. See Section 239510 for testing, adjusting, and balancing procedures. Prepare and submit test and inspection reports.

C. Remove and replace malfunctioning units and retest as specified above.



TERMINAL HEATING UNITS 238210 - 1

SECTION 238210 – TERMINAL HEATING UNITS

PART 1 - GENERAL

1.1 WORK INCLUDED

A. The Work of this Section shall consist of the labor, materials and equipment required for installation of terminal heating units.

1.2 SUBMITTALS


1. Horizontal Unit Heaters

2. Air Curtains

PART 2 - PRODUCTS

2.1 HORIZONTAL UNIT HEATER, HOT WATER

A. Acceptable Manufacturer: Trane Model P vertical and Model S horizontal, or Modine, Airtherm, Sterling.

B. Casing: Die-formed steel, phosphatized, finished in baked enamel. Top plate shall be provided with threaded or drilled hanger connections.

C. Heating Elements: 0.025 inch thick wall seamless copper tubing with aluminum fins mechanically bonded to tubing.

D. Coil Test Pressure: 300 psig air tested under water.

E. Fan Guard: Removable heavy duty wire cage.

F. Motor: Continuous duty, direct connected to fan, with built-in automatic reset thermal protection.

G. Fan: Aluminum or steel blades, statically and dynamically balanced.

H. Outlet: Adjustable discharge louver.

I. Controls: Refer to Section 239010, Building Automation System.

2.2 AIR CURTAIN, HOT WATER

A. Acceptable Manufacturer: Berner International, or as approved.


TERMINAL HEATING UNITS 238210 - 2

B. Casing: Heavy gage galvanized steel with baked enamel finish and heavy duty internal structural frame.

C. Fan Wheel: Non-overloading, statically and dynamically balanced, direct connected to motor and designed for high velocity discharge.

D. Fan Motor: Constant speed, totally enclosed, permanently lubricated, sealed ball bearing motor designed for vertical mounting.

E. Heating Element: Fin and tube construction with aluminum fins mechanically bonded to seamless copper tubing. Element shall be free to expand and contract without damage to adjacent tubes or header connections.

F. Test Pressure: 500 psig hydrostatic.

G. Controls:

1. Wall mounted control panel, field mounted.

2. Starter with H-O-A switch.

3. NEMA 1 enclosure.

4. Control power transformer.

5. Terminal strips.

6. Adjustable time delay.

H. Accessories:

1. Automatic door activation switches for on-off control.

2. Adjustable wall mounting brackets.

3. 1 inch thick pleated media throwaway type filters.

4. Anodized aluminum architectural type grille.

5. Trim kit for suspended ceiling installation.

PART 3 - EXECUTION

3.1 INSTALLATION

A. Install terminal heating units and complete piping connections in accordance with unit manufacturer's recommendations. Submit manufacturer's printed installation instructions with operating and maintenance data at completion of Work.

B. Filters installed in air curtains during the construction period will be considered temporary. Provide new throwaway type unit filters at time of Owner acceptance of Work.



HUMIDIFIERS 238410 - 1

SECTION 238410 – HUMIDIFIERS

PART 1 - GENERAL

1.1 WORK INCLUDED

A. The Work of this Section shall consist of the labor, materials and equipment required for installation of humidifiers.

1.2 SUBMITTALS

A. Submit for approval in accordance with specified submission procedures:

1. Steam Injection Humidifier

2. Steam Dispersion Panel

B. Product Data: Include product description, model, dimensions, component sizes, rough-in requirements, and service sizes. Include rated capacities, operating weights, furnished specialties, and accessories.

C. Wiring Diagrams: Include power, signal, and control wiring. Differentiate between manufacturer-installed and field-installed wiring.

D. Submit manufacturer's printed installation instructions with operating and maintenance data at completion of Project.

PART 2 - PRODUCTS

2.1 STEAM INJECTION HUMIDIFIER

A. Acceptable Manufacturer: Armstrong International Series 9000 or Nortec, Dri-Steem.

B. Product Description: Steam injection humidification using a boiler steam generator as a steam source. Steam separator type in accordance with ARI 610 receiving steam at supply pressure and providing separation ahead of control valve, discharging through internal drying and silencing chambers, and distribution manifold at atmospheric pressure.

C. Separator: Humidifier removes condensate from steam by means of stainless steel separator, for purpose of providing condensate-free steam.

D. Control Valve: Furnish normally closed electric operated modulating control valve. Class 250 pressure and temperature rating. Complete with stainless steel seat, stem and plug.

E. Steam Dispersion Method: Steam Dispersion Panel Refer to specification elsewhere in this section.



F. Automatic Temperature Controls: Refer to Section 239010 for humidifier controls and sequence of operation.

G. Accessories: Furnished with humidifier:

1. Two float and thermostatic traps.

2. Steam supply piping strainer.

2.2 STEAM DISPERSION PANEL

A. Manufacturer: Dispersion manifold furnished by same manufacturer as humidifier specified elsewhere in this section.

B. Product Description: Steam dispersion panel factory assembled, consisting of a horizontal or vertical stainless steel header-separator supplying steam to a bank of closely spaced vertical or horizontal tubes to meet absorption distance requirements.

C. Header: Furnish a single horizontal stainless steel header-separator to provide steam to vertical distributor tubes. Construction: Type 304 stainless steel. Steam inlet and condensate return located on the same side and at the bottom of the header to allow single point entry and floor mounting.

D. Tubes: Type 304 stainless steel construction. Stainless steel nozzle inserts ensure condensate free steam is discharged from the center of the distribution tubes. Stainless steel nozzle inserts shall have metered orifices, sized to provide even distribution of the discharged steam, spaced for optimum steam absorption.

E. Adjustable mounting frame.

F. Factory drilled mounting tabs in four corners for attachment to structural supports within the air handler.

A. Insulated with 1/2 inch (13 mm) glass fiber insulation, surrounded with 24 gage (0.6 mm) stainless steel.

PART 3 - EXECUTION

3.1 EXAMINATION

A. Verify air handling unit or ductwork is ready for installation.

B. Verify piping rough-ins are correct size and at correct location.

3.2 PREPARATION

A. Contact manufacturer to review installation procedures for field installed accessories.



3.3 INSTALLATION – DISPERSION TUBE

A. Install dispersion tube in air handling unit or ductwork in accordance with manufacturer’s installation instructions.

B. Install dispersion tube escutcheon plates.

C. Secure end of dispersion tube to duct using manufacturer’s support bracket.

3.4 INSTALLATION - STEAM HUMIDIFIERS

A. Install humidifiers in accordance with unit manufacturer's recommendations.

B. Install loose equipment furnished by manufacturer.

C. Support humidifier components and piping independent of ductwork or air handling unit.

3.5 MANUFACTURER'S FIELD SERVICES

A. Furnish services of factory trained representative for minimum of one day to start equipment according to manufacturer's instructions and in presence of manufacturer's representative. Test controls and demonstrate compliance with requirements.

3.6 DEMONSTRATION

A. Demonstrate operation and maintenance procedures.

B. Furnish services of manufacturer's technical representative for 4 hours to instruct Owner's personnel in operation and maintenance of units. Schedule training with Owner, provide at least 7 days’ notice to Construction Manager of training date.



BUILDING AUTOMATION SYSTEM 239010 - 1

SECTION 239010 – BUILDING AUTOMATION SYSTEM

PART 1 - GENERAL

1.1 WORK INCLUDED

A. The Work under this Section shall consist of the labor, materials and equipment required for installation of the building automation system and automatic temperature control system (BAS/ATC).

B. System shall be an extension of the existing system and be complete in all respects including labor, materials, equipment and services necessary.

1.2 SUBMITTALS

A. Submit complete BAS/ATC shop drawings for Engineer's approval prior to installation or fabrication of any equipment. Submittal data shall include a schedule of all devices to be installed, including proposed locations. Devices shall be properly sized and selected for optimum system operation.

B. Deviations from the sequence of control specified herein shall be clearly noted in the sequence of control furnished with shop drawing submittals.

C. Submittals shall include software, control equipment, control valves, motor-operated dampers, damper actuators, sequence of operations, points list, complete system drawings, etc.

1.3 SERVICE AND GUARANTEE

A. At completion of system installation, BAS/ATC system manufacturer shall adjust all thermostats, control valves, motors and other equipment provided under this contract with trained personnel in the direct employ of BAS/ATC system manufacturer. He shall place said equipment in complete operating condition subject to approval of Engineer, and instruct Owner's operating personnel in the operation of the system.

B. BAS/ATC system, as shown on Drawings and specified herein, shall be guaranteed free from defects in workmanship and material under normal use and service for a period of 1 year after acceptance by Owner.

C. Equipment proven to be defective in workmanship or material during the guarantee period shall be adjusted, repaired, or replaced by BAS/ATC system manufacturer at no charge to Owner.

D. BAS/ATC system manufacturer shall maintain an up to date software program to provide Owner with backup in the event of system failure at any future date.



1.4 WIRING

A. All power and wiring required by the BAS/ATC system, controllers and required appurtenances shall be provided by BAS/ATC system supplier.

B. Detailed wiring diagrams and complete field supervision shall be provided by system installer.

C. System installer shall furnish and install control devices specified in this Section unless specifically stated otherwise.

D. Maximum allowable voltage for wiring inside control panels shall be 120V.

E. All wiring shall conform to the National Electrical Code and requirements of Division 26.

F. Control wiring penetrations at wall-mounted sensors shall be calked and sealed to prevent air leakage.

PART 2 - PRODUCTS

2.1 MANUFACTURER

A. Basis of Design, to match existing system: TAC; IA Series (Invensys)


2.2 GENERAL

A. BAS/ATC system shall include, but not be limited to, the following components:

1. The existing Ephrata Community Hospital operator interface shall be used.

2. The Health Pavilion is served by existing Invensys DMS controllers. New equipment installed in this project shall be connected to the LON network using new application specific controllers and custom application controllers compatible with the Ephrata system. For equipment not being replaced, the existing DMS controllers shall remain to serve that equipment.

3. Building controllers (system application controllers) shall manage the energy and building management capacities of the automation system, as well as, facilitate remote communications and central monitoring.

4. Application specific controllers shall provide distributed, pre-engineered control, specific to the mechanical equipment specified.

5. Custom application controllers with distributed custom programming capability shall provide control for nonstandard control sequences.

6. Data communications capability shall allow data to be shared between the various controllers in the architecture.

7. End devices such as sensors, actuators, dampers, valves, and relays.

8. Graphics at main work station shall be modified to show new HVAC equipment.



B. The failure of any single component shall not interrupt the control strategies of other operational devices. System expansion shall be through the addition of end devices, controllers, and other device specified herein.

2.3 SYSTEM APPLICATION CONTROLLERS

A. BAS/ATC system shall be composed of one independent, stand alone, microprocessor based system application controller to manage the global strategies described in application software section.

B. System application controller shall have ample memory to support its operating system, database, and programming requirements.

C. Operating system of the system application controller shall manage the input and output communications signals to allow distributed controllers to share real and virtual point information and allow central monitoring and alarms.

D. Data shall automatically be shared between system application controllers when they are networked together.

E. Database and custom programming routines of remote system application controllers shall be editable from single operator station.

F. System applications controllers shall have the capability of being remotely monitored over telephone modem. Additional capabilities shall include automatically dialing out alarms, gathering alarms, reports and logs, programming an downloading databases.

G. Controller shall continually check status of all processor and memory circuits. If a failure is detected, controller shall:

1. Assume a predetermined failure mode.

2. Emit an alarm.

3. Display card failure identification.

2.4 APPLICATION SPECIFIC CONTROLLERS

A. Application specific controllers shall be standalone, microprocessor based direct digital controllers with sufficient memory to handle its operating system, database and programming requirements.

B. Application specific controller shall be pre-programmed, tested, and factory mounted on mechanical equipment to ensure reliability.

1. Where factory mounting is not possible, controllers shall be factory programmed and tested prior to shipment to jobsite. Controllers shall be clearly labeled as to controller type, where installed, and software address (if applicable). Controller shall be fully tested upon installation to ensure that it is properly matched to the equipment it is controlling.

C. Controller shall communicate with other devices on communication network and be fully integrated with other system components.



D. Hardware shall be suitable for anticipated ambient conditions.

1. Controllers used outdoors and/or in wet ambient shall be mounted within waterproof enclosures, and shall be rated for operation at minus 40 degrees F to 155 degrees F.

2. Controller used in conditioned ambient shall be mounted in dust proof enclosures, and shall be rated for operation at 32 degrees F to 120 degrees F.

2.5 CUSTOM APPLICATION CONTROLLERS

A. Custom application controllers shall provide standalone control and require no additional system components for complete operation. It shall have sufficient memory to support its operating system, database, and programming requirements.

B. All programming required for operation shall be memory resident and shall be retained in permanent memory. Battery backup for a minimum of 72 hours is also permissible.

C. Custom application controller shall be configured such that portable operator interface can be plugged directly into it or within sight for programming, editing, and other operator functions.

D. Controller hardware shall be suitable for the anticipated ambient conditions.

E. Controllers used outdoors and/or in wet ambient shall be mounted within waterproof enclosures, and shall be rated for operation at minus 40 degrees F to 155 degrees F.

F. Controller used in conditioned ambient shall be mounted in dust proof enclosures, and shall be rated for operation at 32 degrees F to 120 degrees F.

2.6 INPUT/OUTPUT INTERFACE

A. Hardwired inputs and outputs may tie into system through system application, or application specific controllers. Slave devices are also acceptable. Any critical points requiring immediate reaction shall be tied directly into controller hosting control software algorithm for criticalfunction.

B. Binary inputs shall allow monitoring of on off signals from remote devices. Binary inputs shall provide a wetting current of 12MA at 12VDC to be compatible with commonly available control devices.

1. All status points shown on point list shall be positive proof differential pressure or current sensing binary switches.

C. Analog inputs shall allow the monitoring of low voltage, current, or resistance signals and shall have a minimum resolution of 0.1 percent of sensing range. Analog inputs shall be compatible with, and field configurable to commonly available sensing devices.

D. Binary outputs shall provide a continuous low voltage signal for on off control of remote devices. Where specified in sequence of operations or indicated on points list, binary outputs shall have 3 position on off auto override switches, status lights, and shall be selectable for either normally open or normally closed position.



E. Analog outputs shall provide a modulating signal for control of end devices. Outputs shall provide either a 0 to 10 VDC or a 4 to 20 milliampere signal as required to provide proper control of output device.

F. System architecture shall allow for point expansion in one of the following ways:

1. Addition of input/output cards to an existing system application controller.

2. A slave controller may be used to expand point capacity.

3. 10 percent expansion capacity for all point types in all DDC panels.

2.7 AUXILIARY CONTROL DEVICES

A. Control Valves

1. Two-way or three-way diverting valves as indicated with linkage for connection to valve operator. Maximum pressure drop shall be 3 psig at design flow.

B. Valve Actuators

1. Valve actuators shall be electronic, spring return, low voltage (24VAC), and properly selected for valve body and service.

2. Actuators shall be fully proportioning and be spring return for normally open or normally closed operation as called out in the sequence of operations.

2.8 TEMPERATURE SENSORS

A. Temperature sensors shall be integrated circuit temperature detector sensors (RTD) or thermistor as dictated by requirements herein.

B. Immersion sensors shall be provided with a separable stainless steel well.

C. Space sensors shall be equipped with setpoint adjustment and/or override switch as specified on the Drawings or in the sequence of operations.

D. Accuracies shall be plus or minus 1 degree F for standard applications. Where high accuracy is required, accuracies shall be plus or minus.2 degrees F.

2.9 PRESSURE SENSOR

A. The pressure sensor shall provide a 4 to 20 mA output. Sensor accuracy shall be + or minus 1 percent of sensing range.

B. Sensor shall have a normal operating pressure range of 0 to 100 psig and a proof pressure of 200 psig.



2.10 MOTOR OPERATED DAMPERS

A. Remote mounted motor operated dampers shall be furnished by the BAS/ATC system manufacturer and installed by the HVAC Contractor. Dampers shall be opposed or parallel blade type as required for the application. Dampers shall be of the low leakage type of not more than 1 percent leakage based on a 4 inch WC static pressure and a 2000 feet per minute approach velocity. Seals on damper blades and frames shall be replaceable in the field. Furnish and install for motor operated dampers, including motor operated dampers furnished by the unit manufacturer, piston type damper actuators providing ample power to smoothly position damper to any position. Damper operators shall be equipped with pilot positioners where specified or required to meet the specified sequence of operation.

2.11 DIFFERENTIAL PRESSURE MONITOR

A. Acceptable Manufacturer: TSI.

B. Mount monitor directly outside space where indicated on Drawings.

C. Differential pressure monitor includes normal and alarm status lights, a local audible alarm, alarm silence button and a local LED pressure display in inches of water. Differential pressure monitor shall continuously monitor differential pressure between the occupied room and the adjacent space and shall display the differential pressure in inches of water gauge. Monitor shall be capable of monitoring and alarming one differential pressure. In addition to differential pressure, the monitor shall continuously monitor door between the occupied room and the adjacent space. Should the door remain open beyond user specified time period, an alarm shall be annunciated at both the differential pressure monitor and the BAS/ATC system.

D. Install differential pressure monitor and its associated sensors in accordance with most current CDC Guidelines.

E. Alarms: Nurse Call system shall receive an alarm when room loses isolation status (infectious) as determined by the measured differential pressure monitor. Provide a time delay for alarms to prevent nuisance alarms during entering or exiting mode or set point changes. Monitor differential pressure monitor through nurse call system for abnormal alarm conditions, isolation room and adjacent space pressures, door alarms, pressure mode switch position and failure of device.

F. Calibration: Provide project site calibration using an NIST traceable device. Furnish Owner copies of calibration values.

PART 3 - EXECUTION

3.1 MOUNTING HEIGHTS

A. Mounting height for space sensors and thermostats shall be 44 inches from the finished floor to the centerline of the device. If the designated location of a device places it partially between two finishes, the actual location shall be adjusted to set the device entirely on one finished surface only, but actual height shall not exceed mounting heights indicated or required by codes.



PART 4 - SEQUENCE OF OPERATION

4.1 CHILLED WATER SECONDARY PUMPS (EXISTING P-4, P-5 & P-6 PLUS P-7 & P-8)

A. Pumps P-4, P-5, P-6, P-7 and P-8 shall operate to meet system flow. The one or more of the chilled water pumps shall be modulated by their respective variable frequency drives to maintain the static pressure sensor set point (adjustable), as determined by the system balancer. The static pressure sensor is an existing sensor installed in a previous project.

B. The designated lead pump shall alternate every 400 hours.

C. One of the five pumps shall function in a standby capacity.

4.2 HOT WATER BOILERS AND INTEGRAL HOT WATER PUMPS (HP-B1 thru HP-B3 andPumps HP-P1 thru HP-B3)

A. The project includes three (3) high efficiency hot water boilers. They are sized for two to handle the ultimate heating load. (Renovation of remaining 1st floor, renovation of 3rd floor and build out of 3rd floor shell spaces.) The third boiler will provide standby capacity.

B. A signal from BAS/ATC system shall energize or de-energize each boiler.

C. Boilers shall be available to operate continuously regardless of building occupancy and outside temperature to produce hot water for the heating system.

D. The boilers shall operate to maintain constant system water temperature (140 degrees F, adjustable).

E. When enabled, the lead hot water boiler shall operate under manufacturer’s controls to maintain hot water temperature. When the lead boiler cannot maintain hot water temperature for 10 minutes (adjustable) as measured by a temperature sensor in the common hot water supply piping, the next boiler in the lead-lag sequence shall be energized. Once energized, the boiler shall operate for a minimum of 30 minutes (adjustable).

F. On a rise in system hot water return temperature to 110 degrees F (adjustable), for a period of 15 minutes (adjustable), the last energized boiler shall be de-energized , and after a 5-minute delay, the boiler circulation pump shall be de-energized. If the hot water return temperature remains over 110 degrees F, stage the next boiler off at 15 minute intervals.

G. The boilers shall automatically operate in a lead-lag sequence to maintained equal operating hours between the three boilers. The lead-lag operation shall be switched every 50 operating hours (adjustable).

H. Boiler Pump Operation and Failure: When a boiler is energized, the integral hot water pump shall be first be started and prove flow in the boiler. Then the boiler shall be energized. The integral hot water pump shall run continuously. Upon a pump failure, as sensed by a current sensing relay, provide an alarm message through the operator interface. When the pump fails the boiler shall be de-energized.



I. Boiler Failure: An auxiliary contact provided by the boiler manufacturer shall be connected to the BAS/ATC system and provide an alarm message, through the operator interface, when a boiler failure occurs. Upon boiler failure, remove the run command from the boiler, after a 5 minute delay de-energize the boiler circulation pump. Require a software reset to return the boiler to service.

J. A mushroom style pushbutton located in the mechanical room shall disable all three boilers in an emergency situation. An auxiliary contract shall be connected to the BAS/ATC system and provide an alarm message through the operator interface.

K. Hot water temperature in the boiler supply and return piping is monitored through the BAS/ATC system and provide an alarm message, through the operator interface, at a high temperature or low temperature condition. Temperature settings shall be adjustable.

4.3 SECONDARY HOT WATER PUMPS (HP-P4, HP-P5)

A. A signal from BAS/ATC system shall energize or de-energize each pump.

B. Hot water for heating or VAV box heating coils is constantly available regardless of outside air temperature.

C. The lead secondary hot water pump shall be energized and run continuously. A sensor referencing pressure differential between the hot water supply and return mains located two-thirds of the distance to the furthest coil shall be input to the BAS/ATC system. The hydronic system balancer shall determine the minimum pressure setting required for full water flow to the most remote coil. The variable frequency drive shall modulate to maintain the minimum required pressure differential.

D. The pumps shall automatically operate in a lead-lag sequence to maintained equal operating hours. The lead-lag operation shall be switched every 50 hours (adjustable).

E. Upon a failure of the lead pump as determined by a differential pressure switch, the lag pump shall be energized after a time delay. Provide an alarm message, through the operator interface, when flow is not verified.

4.4 HEAT EXCHANGER (HP-HX1)

A. The heat exchanger is for emergency use when the natural gas service is lost to the boilers.

B. When the BAS/ATC system receives a fault successively from each of the three boilers through the auxiliary contact provided by the boiler manufacturer and the hot water supply temperature drops 5 degrees F (adjustable) below set point, the two motorized two-way, two position control valves located in the hot water piping to the heat exchanger shall switch system flow through the heat exchanger. The dedicated boiler hot water pumps shall be stopped. The secondary hot water pumps shall continue to operate.

C. A temperature sensor with its element located in the hot water supply piping from the heat exchanger, through the BAS/ATC system, shall modulate the 1/3 and 2/3 sized control valves in sequence to maintain a constant hot water supply temperature leaving the heat exchanger of 140



degrees F. When no water flow is present in the heat exchanger, the control valves shall be closed.

D. When the boiler faults are restored, the two motorized two-way, two position control valves located in the hot water piping shall return to their normal positions and the control valves serving the heat exchanger shall be closed.

4.5 HOT WATER HORIZONTAL UNIT HEATERS (UH)

A. On a fall in space temperature below set point, unit heater fan shall energize and heating coil control valve shall open (two-position). On a rise in space temperature, the reverse shall occur.

4.6 AIR CURTAINS (AC-1, AC-2, AC-3, AC-4)

A. Air curtain shall be energized upon opening of the door through the door activation switch. The fan shall start and shall run continuously. On a fall in space temperature below set point the two-way hot water control valve shall open (two-position). On a rise in space temperature, the hot water control valve shall close. When the door closes, the unit fan shall be de-energized either by the door switch or the fan shall continue to run until a rise space temperature to the heating set point, then the hot water control valve shall close.

4.7 STEAM HUMIDIFIER (HP-SH2, HP-SH4, HP-SH5)

A. An electronic return air humidity sensor shall modulate the humidifier controller to maintain the user specified space humidity set point.

B. An electronic supply air humidity sensor shall be used to monitor supply air humidity.

C. Provide a duct mounted humidity sensor for high limit control capability for overriding control of the humidifier.

D. Provide a hard-wire interlock with an airflow switch in the respective air handling unit ductwork with the control circuit of the humidifier. This interlock shall prevent operation when the air handling unit fans are not operating.

E. Provide a software lockout that shall prevent the humidifier from operating during air handling unit chilled water control valve operation with both the process and regular chilled water coils.

4.8 ROOFTOP HEATING-COOLING UNIT (RTU-1)

A. A signal from the BAS/ATC system shall index the unit to the appropriate cycle.

B. Warm-up Cycle: The unit supply and return fans, through the BAS/ATC system, shall be started at the optimal time. The outside air and relief air dampers shall be fully closed. The return air damper shall be fully open. The heating coil control valve shall be fully open. The unit’s refrigeration system shall be locked out. When the occupied space temperature is reached, the unit shall be indexed to the occupied cycle.



C. Cool-down Cycle: The unit supply and return fans, through the BAS/ATC system, shall be started at the optimal time. The outside air and relief air dampers shall be fully closed. The return air damper shall be fully open. The unit’s refrigeration system shall be allowed to operate. The heating coil control valve shall be fully closed. When the occupied space temperature is reached, the unit shall be indexed to the occupied cycle.

D. Occupied Cycle: The unit supply and return fans shall run continuously and the outside air damper shall be open to its controlled position. A supply air duct static pressure sensor, through the BAS/ATC system, shall modulate the variable speed drive on the supply fan. The BAS/ATC system shall modulate the variable speed drive on the return fan to maintain a fixed differential between supply air quantity and return air quantity.

1. An air flow monitoring device located in the mixing box outside air opening, through the BAS/ATC system, shall maintain a fixed minimum outside air quantity independent of system flow.

2. Proof of status (flow) for each fan shall be provided by means of an air differential pressure switch. An alarm message, through the BAS/ATC system, shall be provided when a malfunction occurs.

3. A static pressure high limit control sensor (mounted in the supply duct work) shall shut down the supply and return fans in the event of high static pressure. An alarm message, through the BAS/ATC system, shall be provided. After shutdown, the static pressure high limit control must be manually reset.

4. Outside air temperature below 55 degrees F: The unit’s refrigeration system is locked out. As outside air temperature falls, an electronic supply air temperature sensor, through the BAS/ATC system, shall first modulate the return air, the outside air and relief air dampers to maintain discharge air temperature. As outside air temperature continues to fall, the heating coil control valve shall modulate to maintain a discharge air temperature of 55 degrees F (adjustable). The electronic mixed air temperature sensor, through the BAS/ATC system, shall maintain a fixed minimum outdoor air quantity. The mixed air temperature shall not be allowed to fall below 40 degrees F (adjustable).

5. Outside air temperature above 55 degrees F: The electronic mixed air temperature sensor, through the BAS/ATC system, shall maintain a fixed minimum outdoor air quantity. The heating coil control valve shall be closed. A temperature transmitter, through the DDC controller, shall cycle the unit’s refrigeration system to maintain a discharge air temperature of 55 degrees F (adjustable).

E. Unoccupied cycle: The unit supply and return fans are stopped at the optimal time, through the BAS/ATC system, and shall cycle to maintain reduced space temperature. The heating coil control valve shall be. The unit’s refrigeration system shall be locked out. The outside air and relief air dampers shall be fully closed. The return air damper shall be fully open.

F. Low Temperature Safety Control: Furnish a low limit thermostat installed in serpentine fashion across entire face of the inlet side of the cooling coil. Thermostat shall be the manual reset type. Whenever temperature of any one foot of sensing element falls below thermostat's setting (adjustable), supply and return fans shall be de-energized and outside air and relief air dampers shall be closed. Provide an alarm message, through the operator interface.

G. Filter Status: Differential pressure sensors located across the unit pre-filter shall send an alarm message, through the operator interface, when filters load to a preset pressure drop.



H. Smoke Dampers: Upon detection of products of combustion as sensed by a duct mounted smoke detector, the smoke dampers located in the supply air and return air duct work shall close and the unit supply air and return air fans shall be de-energized, the outside air damper shall close, the return air damper shall open, and an alarm message shall be sent to the building fire alarm system. The BAS/ATC system shall provide an alarm message, through the operator interface.

I. Variable Air Volume Boxes for RTU-1 System:

1. Control Reheat Unit (CRU):a. Occupied Cycle: On a fall in space temperature, a space temperature sensor,

through the VAV box controller, shall modulate the VAV box damper to minimum position. Upon reaching damper minimum position, and on a continued fall in space temperature to the heating set point, the heating coil control valve shall modulate open and the box damper shall move to its heating position. On a rise in space temperature, the reverse shall occur.

b. Warm-Up Cycle: VAV terminal box damper shall be fully open. The heating coil control valve shall be fully open. When occupied space temperature is reached, VAV box is returned to occupied cycle operation.

c. Cool-Down Cycle: VAV terminal box damper shall be fully open. The heating coil control valve shall be fully closed. When occupied space temperature is reached, VAV box is returned to occupied cycle operation.

d. Unoccupied cycle: VAV box damper and heating coil control valve shall operate to maintain unoccupied space set point.

e. Override: Provide a manual override switch to permit restoration of the occupied cycle for a three hour time period (adjustable). In order for the override switch to be reset for a successive time period, it must first time out from the previous period.

2. Control Unit (CU):a. Occupied Cycle: On a fall in space temperature, a space temperature sensor,

through the VAV box controller, shall modulate the VAV box damper to minimum position. On a rise in space temperature, the reverse shall occur.

b. Warm-Up Cycle: VAV terminal box damper shall be fully open. When occupied space temperature is reached, VAV box shall be returned to occupied cycle operation.

c. Cool-Down Cycle: VAV terminal box damper shall be fully open. When occupied space temperature is reached, VAV box shall be returned to occupied cycle operation.

d. Unoccupied cycle: VAV box damper shall operate to maintain unoccupied space set point.

e. Override: Provide a manual override switch to permit restoration of the occupied cycle for a three hour time period (adjustable). In order for the override switch to be reset for a successive time period, it must first time out from the previous period.

3. Parallel Fan Powered Terminal Boxes (CUF):a. Occupied cycle: On a fall in space temperature, a space temperature sensor,

through the VAV box controller, shall modulate the VAV box damper closed.Upon reaching the VAV box minimum position and on a continued fall in space temperature below the heating set point, the VAV box fan shall be started. On a continued fall in space temperature, the heating coil control valve shall modulate open. On a rise in space temperature, the reverse occurs.



b. Warm-up cycle: VAV box fan shall be off. The VAV box damper shall be fully open. The heating coil control valve shall be fully open. When occupied space temperature is reached, VAV box shall be returned to occupied cycle operation.

c. Cool-down Cycle: VAV box fan shall be off. The VAV box damper shall be fully open. The heating coil control valve shall be fully closed. When occupied space temperature is reached, VAV box shall be returned to occupied cycle operation.

d. Unoccupied Heating Cycle: VAV box fan shall cycle to maintain reduced space temperature. VAV box damper shall be fully open. The heating coil control valve shall be fully open.

e. Unoccupied Cooling Cycle: VAV box fan shall be off. The VAV box damper shall be fully open. The heating coil control valve shall be fully closed.

f. Override: Provide a manual override switch to permit restoration of the occupied cycle for a three hour time period (adjustable). In order for the override switch to be reset for a successive time period, it must first time out from the previous period.

4.9 ROOFTOP AIR HANDLING UNIT (HP-AHU2, HP-AHU4)

A. During normal operation these air handling units will not have an unoccupied cycle. Provide the capability to index the unit to an unoccupied cycle.

B. A signal from the BAS/ATC system shall index the air handling unit to the appropriate cycle.

C. Occupied Cycle: The supply and return fans shall run continuously and the outside air damper shall modulate to its controlled position. A supply air duct static pressure sensor, through the BAS/ATC system, shall modulate the variable frequency drive on the supply fan. The BAS/ATC system shall modulate the variable frequency drive on the return fan to maintain a fixed differential between supply air and return air quantities (as sensed by air flow monitoring devices).

1. Proof of status (flow) for each fan shall be provided by an air differential pressure switch. Provide an alarm message, through the operator interface, when flow is not verified.

2. An air flow monitoring device located in the mixing box outside air opening, through the BAS/ATC system, shall maintain the fixed minimum outside air quantity independent of system supply air flow.

3. A static pressure high limit sensor (mounted in the supply duct work) shall de-energize the supply fan and the return fan in the event of high static pressure. Provide an alarm message, through the operator interface. After shutdown, the static pressure high limit control must be manually reset. This device shall also be programmed to limit the discharge static pressure to 4 inches (adjustable) in the event the remote sensor is isolated by a local fire/smoke damper.

4. Outside Air Temperature below 50 degrees F: The cooling coil control valve shall be closed. As outside air temperature falls, a supply air temperature sensor, through the BAS/ATC system, first shall modulate the return air, the outside air and relief air dampers to maintain discharge air temperature, until the outside air is at minimum flow set point. When supply air temperature falls below set point with outside air damper at minimum position, the heating coil control valve shall modulate to maintain discharge air temperature set point.



5. When the outside air enthalpy is greater than the return air enthalpy or the outside air temperature is above 50 degrees F (adjustable) the economizer shall revert to minimum outside air flow control.

6. Outside Air Temperature above 50 degrees F: The heating coil control valve shall be closed. A supply air temperature sensor, through the BAS/ATC system, shall modulate the cooling coil control valve to maintain a discharge air temperature of 50 degrees F (adjustable).

7. Relief air and return air dampers shall be modulated to maintain building static pressure.

D. Unoccupied Cycle: The unit supply and return fans, through the BAS/ATC system, shall be decreased to 50 percent air flow (adjustable) and run continuously. The outside air and relief air dampers shall be fully closed. The return air damper shall be fully open. Space temperatures shall not be changed between occupied and unoccupied cycles.

E. Low Temperature Safety Control: Furnish a low limit thermostat installed in serpentine fashion across entire face of the inlet side of the cooling coil. Thermostat shall be the manual reset type. Whenever temperature of any one foot of sensing element falls below thermostat's setting (adjustable), supply and return fans shall be de-energized and outside air and relief air dampers shall be closed. Provide an alarm message, through the operator interface.

F. Filter Status: Differential pressure sensors located across the unit pre-filter and across the unit final filter shall send an alarm message, through the operator interface, when filters load to a preset pressure drop.

G. Smoke Dampers: Upon detection of products of combustion as sensed by a duct mounted smokedetector, the smoke dampers located in the supply air and return air duct work shall close and the unit supply air and return air fans shall be de-energized, the outside air damper shall close, the return air damper shall open, and an alarm message shall be sent to the building fire alarm system. The BAS/ATC system shall provide an alarm message, through the operator interface.

H. Smoke Detection: BAS/ATC system shall receive a signal from the fire alarm system indicating that the air handling unit shall operate in one of the following modes:

1. When the fire alarm signal is located in an area outside the operating suite, the following mode shall be implemented:a. Shutdown: The air handling unit shall be placed in the off mode. The supply and

return fans shall be stopped the outside air and relief air dampers shall be fully closed and the return air damper shall be fully open.

2. When the fire alarm signal is located within or directly adjacent to the operating suite, the following mode shall be implemented:a. 100 Percent OA-EA: The air handling unit’s return air dampers shall be fully

closed. The outside air and relief air dampers shall fully open to the 100 percent position. The supply fan’s variable frequency drive shall operate at full speed. The heating coil control valve shall be fully open. When the heating coil discharge air temperature falls below 40 degrees F, the supply fan’s variable frequency drive shall gradually reduce speed until the discharge air temperature can be maintained. The supply fan’s variable frequency drive shall be controlled to match the speed of the supply fan.

I. Variable Air Volume Boxes for HP-AHU2 & HP-AHU4 System:





b. Unoccupied cycle: VAV box damper and heating coil control valve shall operate to maintain unoccupied space set point or occupied space set point and reduced air flow. Refer to the Drawing schedule for the boxes with unoccupied reduced air flow.



b. Unoccupied cycle: VAV box damper shall operate to maintain unoccupied space set point.

3. Return Air Control Unit (CU):a. Occupied and Unoccupied Cycles: VAV box controller shall modulate the VAV

box damper to maintain a fixed differential air flow with respect to its associated supply air Control Reheat Unit. Refer to the Drawing schedule for the boxes with unoccupied reduced air flow.

4.10 ROOFTOP AIR HANDLING UNIT (HP-AHU5)

A. During normal operation this air handling unit will not have an unoccupied cycle. Provide the capability to index the unit to an unoccupied cycle.

B. A signal from the BAS/ATC system shall index the air handling unit to the appropriate cycle.

C. Occupied Cycle: The supply and return fans shall run continuously and the outside air damper shall modulate to its controlled position. A supply air duct static pressure sensor, through the BAS/ATC system, shall modulate the variable frequency drive on the supply fan. The BAS/ATC system shall modulate the variable frequency drive on the return fan to maintain a fixed differential between supply air and return air quantities (as sensed by air flow monitoring devices).

1. Proof of status (flow) for each fan shall be provided by an air differential pressure switch. Provide an alarm message, through the operator interface, when flow is not verified.

2. An air flow monitoring device located in the mixing box outside air opening, through the BAS/ATC system, shall maintain the fixed minimum outside air quantity independent of system supply air flow.

3. A static pressure high limit sensor (mounted in the supply duct work) shall de-energize the supply fan and the return fan in the event of high static pressure. Provide an alarm message, through the operator interface. After shutdown, the static pressure high limit control must be manually reset. This device shall also be programmed to limit the discharge static pressure to 4 inches (adjustable) in the event the remote sensor is isolated by a local fire/smoke damper.



4. Outside Air Temperature below 53 degrees F: The cooling coil control valve shall be closed. As outside air temperature falls, a supply air temperature sensor, through the BAS/ATC system, first shall modulate the return air, the outside air and relief air dampers to maintain discharge air temperature, until the outside air is at minimum flow set point. When supply air temperature falls below set point with outside air damper at minimum position, the heating coil control valve shall modulate to maintain discharge air temperature set point.

5. When the outside air enthalpy is greater than the return air enthalpy or the outside air temperature is above 53 degrees F (adjustable) the economizer shall revert to minimum outside air flow control.

6. Outside Air Temperature above 53 degrees F: The heating coil control valve shall be closed. A supply air temperature sensor, through the BAS/ATC system, shall modulate the cooling coil control valve to maintain a discharge air temperature of 53 degrees F (adjustable).

7. Relief air and return air dampers shall be modulated to maintain building static pressure.

D. Low Temperature Safety Control: Furnish a low limit thermostat installed in serpentine fashion across entire face of the inlet side of the cooling coil. Thermostat shall be the manual reset type. Whenever temperature of any one foot of sensing element falls below thermostat's setting (adjustable), supply and return fans shall be de-energized and outside air and relief air dampers shall be closed. Provide an alarm message, through the operator interface.

E. Filter Status: Differential pressure sensors located across the unit pre-filter and across the unit final filter shall send an alarm message, through the operator interface, when filters load to a preset pressure drop.

F. Smoke Detection: Upon detection of products of combustion as sensed by a duct mounted smoke detector, the unit supply air and return air fans shall be de-energized by the building fire alarm system, the outside air damper shall close, the return air damper shall open, and an alarm shall be sent to the operator interface.

G. Variable Air Volume Boxes for HP-AHU-5 System:



b. Unoccupied cycle: VAV box damper and heating coil control valve shall operate to maintain unoccupied space set point.



b. Unoccupied cycle: VAV box damper shall operate to maintain unoccupied space set point.



4.11 FANS (HP-EF-1, HP-EF2, HP-EF3)

A. This fan serves general exhaust and operates on an occupied-unoccupied cycle.

B. A signal from the BAS/ATC system shall energize or de-energize the fan.

C. When the fan is energized the associated damper located at the fan shall open and the fan shall be energized.

D. The fan shall run continuously in the occupied cycle. The fan shall be off during the unoccupied cycle.

E. Proof of status (flow) for the fan shall be provided by a current sensing relay. Provide an alarm message, through the operator interface, when a malfunction occurs.

4.12 FANS (HP-EF5, HP-EF6, HP-EF7)

A. The fans operate on an occupied-unoccupied cycle. Intent is for the fans to operate continuously.

1. HP-EF5 serves the Pre-Op and PACU Isolation Rooms.

2. HP-EF6 serves the Bronchoscopy/Endoscopy Room.

3. HP-EF7 serves the Central Sterile area.

B. A signal from the BAS/ATC system shall energize or de-energize the fan.

C. When the fan is energized, the associated damper located at the fan shall open and the fan shall be energized.

D. The fan shall run continuously in the occupied cycle. The fan shall be off during the unoccupied cycle.

E. Proof of status (flow) for the fan shall be provided by an air differential pressure switch. Provide an alarm message, through the operator interface, when flow is not verified.

4.13 DOMESTIC HOT WATER RECIRCULATION PUMPS (CP-1, CP-2)

A. A signal from BAS/ATC system shall energize or de-energize each pump.

B. The lead pump shall run continuously in the occupied cycle. The lead pump shall be off during the unoccupied cycle.

C. The pumps shall automatically operate in a lead-lag sequence to maintained equal operating hours. The lead-lag operation shall be switched every 7 days (adjustable).

D. Upon a failure of the lead pump as determined by a differential pressure switch, the lag pump shall be energized after a time delay. Provide an alarm message, through the operator interface, when flow is not verified.



4.14 POINT DESCRIPTIONS

A. Refer to point descriptions attached after the end of this section.

4.15 RECORD DRAWINGS

A. BAS/ATC installer shall coordinate with HVAC Contractor to locate and identify all static pressure sensors and hydronic differential pressure sensors on the project record drawings.

4.16 DEMONSTRATION AND TRAINING

A. Furnish the services of a manufacturer’s technical representative for 4 separate, 4-hour sessions to demonstrate BAS/ATC operation and instruct Owner’s personnel in operation and maintenance of equipment. Schedule sessions at least 7 days in advance.

B. Furnish initial programming and include time during instruction to cover re-programming and programming revisions.


OUTPUT (O) INPUT (T, O, V, C)

DIGITAL ANALOG DIGITAL ANALOG ALARMS REPORTS FUNCTIONS

POINT DESCRIPTION

AIR HANDLING UNIT

HP-RTU1

UNIT CONTROL PANEL

SUPPLY FAN

VARIABLE FREQUENCY DRIVE

VFD FAULT

SUPPLY AIR FLOW MONITORING

RETURN FAN


VFD FAULT

RETURN AIR FLOW MONITORING

SUPPLY AIR STATIC PRESSURE

SUPPLY AIR STATIC PRESSURE (HIGH LIMIT AT UNIT)

UNIT REFRIGERATION SYSTEM

HOT WATER CONTROL VALVE

SUPPLY AIR TEMPERATURE

RETURN AIR TEMPERATURE

DAMPERS

OUTSIDE AIR

RETURN AIR

RELIEF AIR

SW

ITC

H C

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SU

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AU

XIL

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TA

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CO

NT

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LA

Y

CO

NT

AC

TO

R

CO

NT

RO

L A

IR O

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LE

AD

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G S

ELE

CT

ION

4 -

20 m

a M

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PN

EU

MA

TIC

TR

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SD

UC

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0-1

6 V

DC

PR

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SU

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H

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CU

RR

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W

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INT

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OR

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GR

AP

HIC

S

239010 - 18



POINT DESCRIPTION

AIR HANDLING UNIT

HP-AHU1

(continued)

MIXED AIR TEMPERATURE

OUTSIDE AIR FLOW MONITORING

FILTERS

SMOKE DETECTOR (supply air)

SMOKE DETECTOR (return air)

FREEZESTAT

CO

OLD

OW

N O

PT

IMA

L S

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ON

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R

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W

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UM

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0-5

VD

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G S

ELE

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4 -

20 m

a M

OD

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PN

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MA

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0-1

6 V

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L R

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LA

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CO

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AC

TO

R

CO

NT

RO

L A

IR O

/C

239010 - 19



POINT DESCRIPTION

AIR HANDLING UNIT

HP-AHU2

HP-AHU4

UNIT CONTROL PANEL

SUPPLY FAN #1


VFD FAULT


SUPPLY FAN #2


VFD FAULT


SUPPLY FAN #3


VFD FAULT


SUPPLY FAN #4


VFD FAULT


RETURN FAN #1


VFD FAULT


CO

OLD

OW

N O

PT

IMA

L S

/S

EC

ON

OM

IZE

R

NIG

HT

PU

RG

E

MA

INT

WO

RK

OR

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ALA

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ME

SS

AG

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WA

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UP

OP

TIM

AL S

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CY

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BU

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FIR

E/S

MO

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GR

AP

HIC

S

ST

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RM

S

CO

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UN

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NA

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PO

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0-5

VD

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W

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RT

Z

EQ

UIP

ME

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KW

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LS

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CU

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0-1

6 V

DC

PR

ES

SU

RE

SW

ITC

H

SW

ITC

H C

LO

SU

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AU

XIL

IAR

Y C

ON

TA

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CO

NT

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NT

AC

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R

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L A

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4 -

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a M

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239010 - 20



POINT DESCRIPTION

AIR HANDLING UNIT

HP-AHU2

HP-AHU4

(continued)

RETURN FAN #2


VFD FAULT




CHILLED WATER CONTROL VALVE #1

CHILLED WATER CONTROL VALVE #2

HOT WATER CONTROL VALVE #1

HOT WATER CONTROL VALVE #2

SUPPLY AIR TEMPERATURE (UNIT)

SUPPLY AIR TEMPERATURE (HW COIL)


DAMPERS

OUTSIDE AIR

RETURN AIR

RELIEF AIR



CO

OLD

OW

N O

PT

IMA

L S

/S

EC

ON

OM

IZE

R

NIG

HT

PU

RG

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RK

OR

DE

R

ALA

RM

ME

SS

AG

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WA

RM

UP

OP

TIM

AL S

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NIG

HT

CY

CLE

BU

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FIR

E/S

MO

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GR

AP

HIC

S

ST

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US

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RM

S

CO

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ME

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RE

PO

RT

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OP

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AT

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LO

G

0-5

VD

C

FLO

W

HE

RT

Z

EQ

UIP

ME

NT

ST

AT

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HIG

H/L

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LIM

IT

RU

N-T

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KW

PU

LS

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CU

RR

EN

T S

EN

SIN

G R

ELA

Y

TE

MP

ER

AT

UR

E

RE

LA

TIV

E H

UM

IDIT

Y

PS

I

PN

EU

MA

TIC

TR

AN

SD

UC

ER

0-1

6 V

DC

PR

ES

SU

RE

SW

ITC

H

SW

ITC

H C

LO

SU

RE

AU

XIL

IAR

Y C

ON

TA

CT

CO

NT

RO

L R

ELA

Y

EP

RE

LA

Y

CO

NT

AC

TO

R

CO

NT

RO

L A

IR O

/C

LE

AD

/LA

G S

ELE

CT

ION

4 -

20 m

a M

OD

ULE

239010 - 21



POINT DESCRIPTION

AIR HANDLING UNIT

HP-AHU2

HP-AHU4

(continued)

FILTERS

FINAL FILTERS



FREEZESTAT

ELECTRIC HEATING CABLE - CHILLED WATER SUPPLY

ELECTRIC HEATING CABLE - CHILLED WATER RETURN

ELECTRIC HEATING CABLE - HOT WATER SUPPLY

ELECTRIC HEATING CABLE - HOT WATER RETURN

HUMIDIFIER (HP-SH2 & HP-SH4)

RETURN AIR HUMIDITY

CONTROL VALVE

SUPPLY AIR HIGH LIMIT

CO

NT

RO

L R

ELA

Y

EP

RE

LA

Y

CO

NT

AC

TO

R

CO

NT

RO

L A

IR O

/C

LE

AD

/LA

G S

ELE

CT

ION

4 -

20 m

a M

OD

ULE

PN

EU

MA

TIC

TR

AN

SD

UC

ER

0-1

6 V

DC

PR

ES

SU

RE

SW

ITC

H

SW

ITC

H C

LO

SU

RE

AU

XIL

IAR

Y C

ON

TA

CT

KW

PU

LS

E

CU

RR

EN

T S

EN

SIN

G R

ELA

Y

TE

MP

ER

AT

UR

E

RE

LA

TIV

E H

UM

IDIT

Y

PS

I

0-5

VD

C

FLO

W

HE

RT

Z

EQ

UIP

ME

NT

ST

AT

US

HIG

H/L

OW

LIM

IT

RU

N-T

IME

GR

AP

HIC

S

ST

AT

US

ALA

RM

S

CO

MM

UN

ICA

TO

N F

AIL

UR

E

MA

NA

GE

ME

NT

RE

PO

RT

S

OP

ER

AT

ING

LO

G

CO

OLD

OW

N O

PT

IMA

L S

/S

EC

ON

OM

IZE

R

NIG

HT

PU

RG

E

MA

INT

WO

RK

OR

DE

R

ALA

RM

ME

SS

AG

E

WA

RM

UP

OP

TIM

AL S

/S

NIG

HT

CY

CLE

BU

ILD

ING

FIR

E/S

MO

KE

239010 - 22



POINT DESCRIPTION

AIR HANDLING UNIT

HP-AHU5

UNIT CONTROL PANEL

SUPPLY FAN #1


VFD FAULT


SUPPLY FAN #2


VFD FAULT


RETURN FAN


VFD FAULT




CHILLED WATER CONTROL VALVE


SUPPLY AIR TEMPERATURE (UNIT)

SUPPLY AIR TEMPERATURE (HW COIL)


CO

NT

RO

L R

ELA

Y

EP

RE

LA

Y

CO

NT

AC

TO

R

CO

NT

RO

L A

IR O

/C

LE

AD

/LA

G S

ELE

CT

ION

4 -

20 m

a M

OD

ULE

PN

EU

MA

TIC

TR

AN

SD

UC

ER

0-1

6 V

DC

PR

ES

SU

RE

SW

ITC

H

SW

ITC

H C

LO

SU

RE

AU

XIL

IAR

Y C

ON

TA

CT

KW

PU

LS

E

CU

RR

EN

T S

EN

SIN

G R

ELA

Y

TE

MP

ER

AT

UR

E

RE

LA

TIV

E H

UM

IDIT

Y

PS

I

0-5

VD

C

FLO

W

HE

RT

Z

EQ

UIP

ME

NT

ST

AT

US

HIG

H/L

OW

LIM

IT

RU

N-T

IME

GR

AP

HIC

S

ST

AT

US

ALA

RM

S

CO

MM

UN

ICA

TO

N F

AIL

UR

E

MA

NA

GE

ME

NT

RE

PO

RT

S

OP

ER

AT

ING

LO

G

CO

OLD

OW

N O

PT

IMA

L S

/S

EC

ON

OM

IZE

R

NIG

HT

PU

RG

E

MA

INT

WO

RK

OR

DE

R

ALA

RM

ME

SS

AG

E

WA

RM

UP

OP

TIM

AL S

/S

NIG

HT

CY

CLE

BU

ILD

ING

FIR

E/S

MO

KE

239010 - 23



POINT DESCRIPTION

AIR HANDLING UNIT

HP-AHU5

(continued)

DAMPERS

OUTSIDE AIR

RETURN AIR

RELIEF AIR



FILTERS

FINAL FILTERS



FREEZESTAT

ELECTRIC HEATING CABLE - CHILLED WATER SUPPLY

ELECTRIC HEATING CABLE - CHILLED WATER RETURN

ELECTRIC HEATING CABLE - HOT WATER SUPPLY

ELECTRIC HEATING CABLE - HOT WATER RETURN

HUMIDIFIER (HP-SH5)

RETURN AIR HUMIDITY

CONTROL VALVE

SUPPLY AIR HIGH LIMIT

CO

NT

RO

L R

ELA

Y

EP

RE

LA

Y

CO

NT

AC

TO

R

CO

NT

RO

L A

IR O

/C

LE

AD

/LA

G S

ELE

CT

ION

4 -

20 m

a M

OD

ULE

PN

EU

MA

TIC

TR

AN

SD

UC

ER

0-1

6 V

DC

PR

ES

SU

RE

SW

ITC

H

SW

ITC

H C

LO

SU

RE

AU

XIL

IAR

Y C

ON

TA

CT

KW

PU

LS

E

CU

RR

EN

T S

EN

SIN

G R

ELA

Y

TE

MP

ER

AT

UR

E

RE

LA

TIV

E H

UM

IDIT

Y

PS

I

0-5

VD

C

FLO

W

HE

RT

Z

EQ

UIP

ME

NT

ST

AT

US

HIG

H/L

OW

LIM

IT

RU

N-T

IME

GR

AP

HIC

S

ST

AT

US

ALA

RM

S

CO

MM

UN

ICA

TO

N F

AIL

UR

E

MA

NA

GE

ME

NT

RE

PO

RT

S

OP

ER

AT

ING

LO

G

CO

OLD

OW

N O

PT

IMA

L S

/S

EC

ON

OM

IZE

R

NIG

HT

PU

RG

E

MA

INT

WO

RK

OR

DE

R

ALA

RM

ME

SS

AG

E

WA

RM

UP

OP

TIM

AL S

/S

NIG

HT

CY

CLE

BU

ILD

ING

FIR

E/S

MO

KE

239010 - 24



POINT DESCRIPTION

BOILERS

AND

HOT WATER SYSTEM

BOILER HP-B1

SUPPLY TEMPERATURE SET POINT

BOILER HWS

BOILER HWR

PUMP HP-P1

BOILER HP-B2


BOILER HWS

BOILER HWR

PUMP HP-P2

BOILER HP-B3


BOILER HWS

BOILER HWR

PUMP HP-P3

HOT WATER PUMP HP-P4


VFD FAULT

HOT WATER PUMP HP-P5


VFD FAULT

BOILER ROOM EMERGENCY SHUTOFF

CO

OLD

OW

N O

PT

IMA

L S

/S

EC

ON

OM

IZE

R

NIG

HT

PU

RG

E

MA

INT

WO

RK

OR

DE

R

BA

Cnet C

ON

NE

CT

ION

GR

AP

HIC

S

OP

ER

AT

ING

LO

G

ST

AT

US

ALA

RM

S

CO

MM

UN

ICA

TO

N F

AIL

UR

E

BU

ILD

ING

FIR

E/S

MO

KE

NIG

HT

CY

CLE

WA

RM

UP

OP

TIM

AL S

/S

RU

N-T

IME

MA

NA

GE

ME

NT

RE

PO

RT

S

EQ

UIP

ME

NT

ST

AT

US

HIG

H/L

OW

LIM

IT

ALA

RM

ME

SS

AG

E

PR

ES

SU

RE

SW

ITC

H

SW

ITC

H C

LO

SU

RE

AU

XIL

IAR

Y C

ON

TA

CT

KW

PU

LS

E

CU

RR

EN

T S

EN

SIN

G R

ELA

Y

TE

MP

ER

AT

UR

E

HE

RT

Z

RE

LA

TIV

E H

UM

IDIT

Y

PS

I

FLO

W

LE

AD

/LA

G S

ELE

CT

ION

4.2

0 m

a M

OD

ULE

PN

EU

MA

TIC

TR

AN

SD

UC

ER

0-1

6 V

DC

CO

NT

RO

L R

ELA

Y

EP

RE

LA

Y

CO

NT

AC

TO

R

CO

NT

RO

L A

IR O

/C

239010 - 25



POINT DESCRIPTION

HOT WATER SYSTEM

AND

STEAM SYSTEM

HEAT EXCHANGER HP-HX1

HX HWS

HX HWR

HEAT EXCHANGER FLOW

1/3 STEAM CONTROL VALVE

2/3 STEAM CONTROL VALVE

BOILER PLANT

STEAM FLOW MEASURING STATION

ELECTRIC STEAM PRESSURE REDUCING VALVES

PRV-10 (MECH. ROOM G-1)

PRV-17 (1948 BLDG. PIT MECH. ROOM)

PRV-20 (RTU-10 DOG HOUSE)

CO

OLD

OW

N O

PT

IMA

L S

/S

EC

ON

OM

IZE

R

NIG

HT

PU

RG

E

MA

INT

WO

RK

OR

DE

R

ALA

RM

ME

SS

AG

E

WA

RM

UP

OP

TIM

AL S

/S

NIG

HT

CY

CLE

BU

ILD

ING

FIR

E/S

MO

KE

GR

AP

HIC

S

ST

AT

US

ALA

RM

S

CO

MM

UN

ICA

TO

N F

AIL

UR

E

MA

NA

GE

ME

NT

RE

PO

RT

S

OP

ER

AT

ING

LO

G

0-5

VD

C

FLO

W

EQ

UIP

ME

NT

ST

AT

US

HIG

H/L

OW

LIM

IT

RU

N-T

IME

KW

PU

LS

E

TE

MP

ER

AT

UR

E

RE

LA

TIV

E H

UM

IDIT

Y

PS

I

PN

EU

MA

TIC

TR

AN

SD

UC

ER

0-1

6 V

DC

PR

ES

SU

RE

SW

ITC

H

SW

ITC

H C

LO

SU

RE

AU

XIL

IAR

Y C

ON

TA

CT

CO

NT

RO

L R

ELA

Y

EP

RE

LA

Y

CO

NT

AC

TO

R

CO

NT

RO

L A

IR O

/C

LE

AD

/LA

G S

ELE

CT

ION

4.2

0 m

a M

OD

ULE

239010 - 26



POINT DESCRIPTION

VARIABLE AIR VOLUME BOXES

VAV BOX CU (typical)

AIR QUANTITY

BOX DAMPER

SPACE TEMPERATURE

SPACE SET POINT ADJUSTMENT

VAV BOX CRU (typical)

AIR QUANTITY


BOX DAMPER

DISCHARGE TEMPERATURE

SPACE TEMPERATURE


VAV BOX FPU (typical)

AIR QUANTITY


BOX DAMPER

BOX FAN

SPACE TEMPERATURE


OVERRIDE

VAV BOX (CU) - RETURN AIR FOR OPERATING ROOMS (typical)

AIR QUANTITY

BOX DAMPER

SW

ITC

H C

LO

SU

RE

AU

XIL

IAR

Y C

ON

TA

CT

CO

NT

RO

L R

ELA

Y

EP

RE

LA

Y

CO

NT

AC

TO

R

CO

NT

RO

L A

IR O

/C

LE

AD

/LA

G S

ELE

CT

ION

4.2

0 m

a M

OD

ULE

PN

EU

MA

TIC

TR

AN

SD

UC

ER

0-1

6 V

DC

PR

ES

SU

RE

SW

ITC

H

KW

PU

LS

E

TE

MP

ER

AT

UR

E

RE

LA

TIV

E H

UM

IDIT

Y

PS

I

0-5

VD

C

RU

N-T

IME

ST

AT

US

ALA

RM

S

CO

MM

UN

ICA

TO

N F

AIL

UR

E

MA

NA

GE

ME

NT

RE

PO

RT

S

FLO

W

EQ

UIP

ME

NT

ST

AT

US

HIG

H/L

OW

LIM

IT

OP

ER

AT

ING

LO

G

NIG

HT

CY

CLE

ALA

RM

ME

SS

AG

E

WA

RM

UP

OP

TIM

AL S

/S

BU

ILD

ING

FIR

E/S

MO

KE

CO

OLD

OW

N O

PT

IMA

L S

/S

EC

ON

OM

IZE

R

NIG

HT

PU

RG

E

MA

INT

WO

RK

OR

DE

R

GR

AP

HIC

S

239010 - 27



POINT DESCRIPTION

FANS

FAN HP-EF1

DAMPER

FAN HP-EF2

DAMPER

FAN HP-EF3

DAMPER

FAN HP-EF5 (ISOLATION ROOMS)

FAN

DAMPER

ROOM 239 PRESSURE MONITOR


FAN HP-EF6 (BRONCH/ENDO)

FAN

DAMPER



ROOM 287A PRESSURE MONITOR

FAN HP-EF7 (CENTRAL STERILE)

FAN

DAMPER

SW

ITC

H C

LO

SU

RE

AU

XIL

IAR

Y C

ON

TA

CT

CO

NT

RO

L R

ELA

Y

EP

RE

LA

Y

CO

NT

AC

TO

R

CO

NT

RO

L A

IR O

/C

LE

AD

/LA

G S

ELE

CT

ION

4.2

0 m

a M

OD

ULE

PN

EU

MA

TIC

TR

AN

SD

UC

ER

0-1

6 V

DC

PR

ES

SU

RE

SW

ITC

H

KW

PU

LS

E

CU

RR

EN

T S

EN

SIN

G R

ELA

Y

TE

MP

ER

AT

UR

E

RE

LA

TIV

E H

UM

IDIT

Y

PS

I

0-5

VD

C

RU

N-T

IME

ST

AT

US

ALA

RM

S

CO

MM

UN

ICA

TO

N F

AIL

UR

E

MA

NA

GE

ME

NT

RE

PO

RT

S

FLO

W

PR

ES

SU

RE

EQ

UIP

ME

NT

ST

AT

US

HIG

H/L

OW

LIM

IT

OP

ER

AT

ING

LO

G

NIG

HT

CY

CLE

ALA

RM

ME

SS

AG

E

WA

RM

UP

OP

TIM

AL S

/S

BU

ILD

ING

FIR

E/S

MO

KE

CO

OLD

OW

N O

PT

IMA

L S

/S

EC

ON

OM

IZE

R

NIG

HT

PU

RG

E

MA

INT

WO

RK

OR

DE

R

GR

AP

HIC

S

239010 - 28



POINT DESCRIPTION

MISCELLANEOUS

HOT WATER SYSTEM

COMMON HWS

COMMON HWR

CHILLED WATER PUMP P-7

CHILLED WATER PUMP P-8

DIFFERENTIAL PRESSURE SENSOR

FOR CONTROL OF SECONDARY CHILLED WATER PUMPS

DOMESTIC WATER SYSTEM

RECIRCULATION PUMP (CP-1)

RECIRCULATION PUMP (CP-2)

SPACE HUMIDITY ROOM 248 (PACU Corridor)

SPACE HUMIDITY ROOM 159 (Decontamination)

SPACE HUMIDITY ROOM 156 (Prep and Packaging)

SPACE HUMIDITY ROOM 155 (Clean Storage)

DECONTAMINATION 159

ROOM PRESSURE MONITOR

LOBBY 160


CLEAN STORAGE 155


DECONTAMINATION 159 - PREP & PACK 156


NIG

HT

CY

CLE

BU

ILD

ING

FIR

E/S

MO

KE

ALA

RM

ME

SS

AG

E

WA

RM

UP

OP

TIM

AL S

/S

RU

N-T

IME

MA

NA

GE

ME

NT

RE

PO

RT

S

OP

ER

AT

ING

LO

G

ST

AT

US

ALA

RM

S

CO

OLD

OW

N O

PT

IMA

L S

/S

EC

ON

OM

IZE

R

NIG

HT

PU

RG

E

MA

INT

WO

RK

OR

DE

R

GR

AP

HIC

S

CO

MM

UN

ICA

TO

N F

AIL

UR

E

RE

LA

TIV

E H

UM

IDIT

Y

PS

I

0-5

VD

C

FLO

W

MO

D B

US

CO

NN

EC

TIO

N

EQ

UIP

ME

NT

ST

AT

US

HIG

H/L

OW

LIM

IT

PR

ES

SU

RE

SW

ITC

H

CO

NT

RO

L R

ELA

Y

EP

RE

LA

Y

CO

NT

AC

TO

R

CO

NT

RO

L A

IR O

/C

PN

EU

MA

TIC

TR

AN

SD

UC

ER

0-1

6 V

DC

LE

AD

/LA

G S

ELE

CT

ION

4.2

0 m

a M

OD

ULE

TE

MP

ER

AT

UR

E

SW

ITC

H C

LO

SU

RE

AU

XIL

IAR

Y C

ON

TA

CT

KW

PU

LS

E

CU

RR

EN

T S

EN

SIN

G R

ELA

Y

239010 - 29



POINT DESCRIPTION

OPERATING ROOMS

OR #1 ROOM 272



OCCUPANCY SENSOR

OCCUPANCY OVERRIDE

SPACE HUMIDITY

OR #2 ROOM 273



OCCUPANCY SENSOR

OCCUPANCY OVERRIDE

SPACE HUMIDITY

OR #3 ROOM 274



OCCUPANCY SENSOR

OCCUPANCY OVERRIDE

SPACE HUMIDITY




SPACE HUMIDITY ROOM 286 (Sterile Storage)

CO

OLD

OW

N O

PT

IMA

L S

/S

EC

ON

OM

IZE

R

NIG

HT

PU

RG

E

MA

INT

WO

RK

OR

DE

R

ALA

RM

ME

SS

AG

E

WA

RM

UP

OP

TIM

AL S

/S

NIG

HT

CY

CLE

BU

ILD

ING

FIR

E/S

MO

KE

GR

AP

HIC

S

ST

AT

US

ALA

RM

S

CO

MM

UN

ICA

TO

N F

AIL

UR

E

MA

NA

GE

ME

NT

RE

PO

RT

S

OP

ER

AT

ING

LO

G

0-5

VD

C

FLO

W

PR

ES

SU

RE

EQ

UIP

ME

NT

ST

AT

US

HIG

H/L

OW

LIM

IT

RU

N-T

IME

KW

PU

LS

E

TE

MP

ER

AT

UR

E

RE

LA

TIV

E H

UM

IDIT

Y

PS

I

PN

EU

MA

TIC

TR

AN

SD

UC

ER

0-1

6 V

DC

PR

ES

SU

RE

SW

ITC

H

SW

ITC

H C

LO

SU

RE

AU

XIL

IAR

Y C

ON

TA

CT

CO

NT

RO

L R

ELA

Y

EP

RE

LA

Y

CO

NT

AC

TO

R

CO

NT

RO

L A

IR O

/C

LE

AD

/LA

G S

ELE

CT

ION

4.2

0 m

a M

OD

ULE

239010 - 30



POINT DESCRIPTION

OPERATING ROOMS

(continued)

OR #4 ROOM 276



OCCUPANCY SENSOR

OCCUPANCY OVERRIDE

SPACE HUMIDITY

OR #5 ROOM 277



OCCUPANCY SENSOR

OCCUPANCY OVERRIDE

SPACE HUMIDITY

OR #6 ROOM 278



OCCUPANCY SENSOR

OCCUPANCY OVERRIDE

SPACE HUMIDITY

OR #7 ROOM 279



OCCUPANCY SENSOR

OCCUPANCY OVERRIDE

SPACE HUMIDITY

CO

OLD

OW

N O

PT

IMA

L S

/S

EC

ON

OM

IZE

R

NIG

HT

PU

RG

E

MA

INT

WO

RK

OR

DE

R

ALA

RM

ME

SS

AG

E

WA

RM

UP

OP

TIM

AL S

/S

NIG

HT

CY

CLE

BU

ILD

ING

FIR

E/S

MO

KE

GR

AP

HIC

S

ST

AT

US

ALA

RM

S

CO

MM

UN

ICA

TO

N F

AIL

UR

E

MA

NA

GE

ME

NT

RE

PO

RT

S

OP

ER

AT

ING

LO

G

0-5

VD

C

FLO

W

PR

ES

SU

RE

EQ

UIP

ME

NT

ST

AT

US

HIG

H/L

OW

LIM

IT

RU

N-T

IME

KW

PU

LS

E

TE

MP

ER

AT

UR

E

RE

LA

TIV

E H

UM

IDIT

Y

PS

I

PN

EU

MA

TIC

TR

AN

SD

UC

ER

0-1

6 V

DC

PR

ES

SU

RE

SW

ITC

H

SW

ITC

H C

LO

SU

RE

AU

XIL

IAR

Y C

ON

TA

CT

CO

NT

RO

L R

ELA

Y

EP

RE

LA

Y

CO

NT

AC

TO

R

CO

NT

RO

L A

IR O

/C

LE

AD

/LA

G S

ELE

CT

ION

4.2

0 m

a M

OD

ULE

239010 - 31



POINT DESCRIPTION

OPERATING ROOMS

(continued)

OR #8 ROOM 280



OCCUPANCY SENSOR

OCCUPANCY OVERRIDE

SPACE HUMIDITY

OR #9 ROOM 281



OCCUPANCY SENSOR

OCCUPANCY OVERRIDE

SPACE HUMIDITY

OR #10 ROOM 282



OCCUPANCY SENSOR

OCCUPANCY OVERRIDE

SPACE HUMIDITY

CO

NT

RO

L R

ELA

Y

EP

RE

LA

Y

CO

NT

AC

TO

R

CO

NT

RO

L A

IR O

/C

LE

AD

/LA

G S

ELE

CT

ION

4.2

0 m

a M

OD

ULE

PN

EU

MA

TIC

TR

AN

SD

UC

ER

0-1

6 V

DC

PR

ES

SU

RE

SW

ITC

H

SW

ITC

H C

LO

SU

RE

AU

XIL

IAR

Y C

ON

TA

CT

KW

PU

LS

E

TE

MP

ER

AT

UR

E

RE

LA

TIV

E H

UM

IDIT

Y

PS

I

0-5

VD

C

FLO

W

PR

ES

SU

RE

EQ

UIP

ME

NT

ST

AT

US

HIG

H/L

OW

LIM

IT

RU

N-T

IME

GR

AP

HIC

S

ST

AT

US

ALA

RM

S

CO

MM

UN

ICA

TO

N F

AIL

UR

E

MA

NA

GE

ME

NT

RE

PO

RT

S

OP

ER

AT

ING

LO

G

CO

OLD

OW

N O

PT

IMA

L S

/S

EC

ON

OM

IZE

R

NIG

HT

PU

RG

E

MA

INT

WO

RK

OR

DE

R

ALA

RM

ME

SS

AG

E

WA

RM

UP

OP

TIM

AL S

/S

NIG

HT

CY

CLE

BU

ILD

ING

FIR

E/S

MO

KE

239010 - 32



POINT DESCRIPTION

OPERATING ROOMS

(continued)

OR #1 RETURN AIR TEMPERATURE










CO

NT

RO

L R

ELA

Y

EP

RE

LA

Y

CO

NT

AC

TO

R

CO

NT

RO

L A

IR O

/C

LE

AD

/LA

G S

ELE

CT

ION

4.2

0 m

a M

OD

ULE

PN

EU

MA

TIC

TR

AN

SD

UC

ER

0-1

6 V

DC

PR

ES

SU

RE

SW

ITC

H

SW

ITC

H C

LO

SU

RE

AU

XIL

IAR

Y C

ON

TA

CT

KW

PU

LS

E

TE

MP

ER

AT

UR

E

RE

LA

TIV

E H

UM

IDIT

Y

PS

I

0-5

VD

C

FLO

W

PR

ES

SU

RE

EQ

UIP

ME

NT

ST

AT

US

HIG

H/L

OW

LIM

IT

RU

N-T

IME

GR

AP

HIC

S

ST

AT

US

ALA

RM

S

CO

MM

UN

ICA

TO

N F

AIL

UR

E

MA

NA

GE

ME

NT

RE

PO

RT

S

OP

ER

AT

ING

LO

G

CO

OLD

OW

N O

PT

IMA

L S

/S

EC

ON

OM

IZE

R

NIG

HT

PU

RG

E

MA

INT

WO

RK

OR

DE

R

ALA

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ME

SS

AG

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UP

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/S

NIG

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CY

CLE

BU

ILD

ING

FIR

E/S

MO

KE

239010 - 33


TESTING, ADJUSTING AND BALANCING OF HVAC SYSTEM 239510 - 1

SECTION 239510 – TESTING, ADJUSTING AND BALANCING OF HVAC SYSTEM

PART 1 - GENERAL

1.1 WORK INCLUDED

A. The Work of this Section shall include the labor, materials, and equipment required for testing and balancing the water and air distribution systems

B. The services of an independent air balance and testing agency will be procured by the Construction Manager.

1.2 DEFINITIONS

A. AABC: Associated Air Balance Council.

B. NEBB: National Environmental Balancing Bureau.

C. TAB: Testing, adjusting, and balancing.

D. TABB: Testing, Adjusting, and Balancing Bureau.

1.3 SUBMITTALS

A. Field reports indicating deficiencies in systems that would prevent proper testing, adjusting, and balancing of systems and equipment to achieve specified performance.

B. Certified TAB reports, including instrument calibration reports, within thirty days after substantial completion of the project. Test and balance reports shall include the following documentation in addition to the documentation required in Part 3 - Execution:

1. Report table of contents.

2. Each individual final Reporting Form submitted must bear the signature of the person who recorded the data and the signature of the testing and balancing supervisor of the performing firm.

3. If more than one certified firm performs the TAB work, all final reports shall be submitted by that certified firm having managerial responsibility.

4. Identification of all types of instruments used and their last dates of calibration shall be submitted with the final report.

5. The final test report shall include appropriate reference to all problems regarding the system(s) encountered prior to, during and after testing and what action taken to correct the problem(s), including noise and vibration.

6. Prints (reduced in size) or sketches showing the following for easy reference to report data: a. Supply, return, and exhaust air outlet locations.



b. Air system(s) schematic(s) including terminal numbers and traverse locations.c. Hydronic system(s) schematic(s) including flow station locations. d. An approved copy of the balancing report shall be included in the Operating and

Maintenance Manual submittal.

1.4 PREPARATION AND COORDINATION

A. Shop drawings, submittal data, up-to-date revisions, change orders, and other data required for planning, preparation, and execution of the TAB work shall be provided to the TAB agency no later than 30 days prior to the start of TAB work.

B. System installation and equipment startup shall be complete prior to the TAB agency's being notified to begin.

C. Provide seven days' advance notice for each test. Include scheduled test dates and times.

D. Perform TAB after leakage and pressure tests on air and water distribution systems have been satisfactorily completed.

1.5 PROJECT CONDITIONS

A. Heating, ventilating, and air conditioning equipment shall be completely installed and in continuous operation as required to accomplish the test and balance work specified.

B. TAB shall be performed when outside conditions approximate design conditions indicated for heating and cooling functions.

C. Full Owner Occupancy: Owner will occupy the site and existing building during entire TAB period. Cooperate with Owner during TAB operations to minimize conflicts with Owner's operations.

D. Partial Owner Occupancy: Owner may occupy completed areas of building before Substantial Completion. Cooperate with Owner during TAB operations to minimize conflicts with Owner's operations.

E. Project Phasing: Testing and balancing shall be completed at the end of each phase of construction, prior to occupancy, and verified for all phases at the completion of construction. Refer to Division 01 and the architectural drawings for phasing requirements.

PART 2 - PRODUCTS

2.1 INSTRUMENTS

A. Instruments used for testing and balancing of systems shall have been calibrated within a period of six months prior to balancing. Test and balance reports shall include a letter of certification listing instrumentation used and last date of calibration.



PART 3 - EXECUTION

3.1 AIR SYSTEMS

A. Preliminary

1. Identify and list size, type, and manufacturer of all equipment to be tested, including air terminals. Use manufacturers' ratings for all equipment to make required calculations except where field tests show ratings to be impractical.

B. Air Handlers and Fans

1. Provide accessory components for motor drives, or replace complete drive package, whenever factory furnished drives on mechanical equipment do not provide design air flows.

2. Record equipment manufacturer, model and serial number.

3. Test and adjust fan RPM to design requirements.

4. Test and record motor voltage and running amperes including motor nameplate data, and starter heater ratings.

5. Make pitot tube traverse of main supply, exhaust and return ducts, determine CFM at fans, and adjust fans to design.

6. Test and record system static pressure, suction and discharge.

7. Test and adjust system for design outside air, CFM.

8. Test and adjust system for design recirculated air, CFM.

9. Test and record heating apparatus entering air temperatures, dry bulb.

10. Test and record cooling apparatus entering air temperatures, dry bulb and wet bulb.

11. Test and record heating apparatus leaving air temperatures, dry bulb.

12. Test and record cooling apparatus leaving air temperatures, dry bulb and wet bulb.

C. Distribution: Adjust zones or branch ducts to proper design CFM, supply and return.

D. Air terminals

1. Identify each air terminal from reports as to location and determine required flow reading.

2. Test and adjust each air terminal to within 10 percent of design requirements.

3. Adjust flow patterns from air terminal units to minimize drafts to extent design and equipment allows.

E. Verification

1. Prepare summation of readings of observed CFM for each system, compare with required CFM, and verify that duct losses are within an acceptable range.

2. Verify design CFM at fans as described above.



3.2 HYDRONIC SYSTEMS

A. Preliminary

1. List all mechanical specifications of tested equipment and verify against contract documents.

2. Open all line valves to full open position, close coil bypass stop valves then set mixing control valve to full coil flow.

3. For each pump: Verify rotation, test and record pump shutoff head, and test and record pump wide open head.

4. Verify proper water level in expansion tanks and in the system.

5. Verify that air vents in high points of water systems are installed and operating freely.

B. Central Equipment

1. Record equipment manufacturer, model and serial number.

2. Set chilled water and hot water pumps to proper flow quantity.

3. Adjust flow of hot water through boilers to design quantity.

4. Adjust steam pressure and record at each steam exchanger.

5. Observe leaving water temperatures and return water temperatures at boilers and heat exchangers. Reset to correct design temperatures.

6. Record pump operating suction and discharge pressures, determine final dynamic head.

C. Distribution

1. Balance flow of each chilled water coil and hot water coil.

2. Record steam pressure at each steam coil.

D. Terminal Units

1. Upon completion of flow readings and adjustments at coil, mark all settings and record inlet water and leaving water temperatures.

2. Observe pressure drop through coil at set flow rate on call for full cooling and for full heating.

3. Set valve in bypass to match coil flow pressure drop on full bypass.

E. Verification

1. Record rated and actual running amperage for each pump motor.

2. Record total dynamic head for each pump.

3.3 BUILDING AUTOMATION SYSTEM

A. In cooperation with the building automation system manufacturer's representative, set and adjust automatically operated devices to achieve required sequence of operations. Refer to Section239010, Building Automation System.



B. Testing organization shall verify all controls for proper calibration, setpoints and proper operation and list those controls requiring adjustment by building automation system installer.



WIRING OF HVAC EQUIPMENT 239610 - 1

SECTION 239610 – WIRING OF HVAC EQUIPMENT

PART 1 - GENERAL

1.1 WORK INCLUDED

A. The Work of this Section shall include the power and control wiring of HVAC equipment. It shall not include control wiring specifically detailed as part of the automatic temperature control system specified in Section 239010, Building Automation System.

PART 2 - PRODUCTS

(NOT USED)

PART 3 - EXECUTION

3.1 INSTALLATION

A. Mechanical equipment shall be wired in accordance with the following schedule:

Key:

Item furnished by.....Item installed by....Item wired by.....

the respective trade according to the following designations:

H = HVAC ContractorE = Electrical Contractor



HVAC Equipment Wiring Schedule

Equipment

Disconnect Means Controllers Control Devices

Rem

ote

Dis

conn

ect

Sw

itch

Inte

gra

l D

isco

nnec

t S

wit

ch

Wal

l S

wit

ch

Co

rd &

Plu

g

Mag

net

ic M

oto

r S

tr

Co

mb

inat

ion

Mot

or

Str

Man

ual

Mot

or S

tr

VF

D w

ith

Dis

conn

ect

Co

ntac

tor

Lin

e V

olta

ge S

tat

Lo

w V

olta

ge S

tat

Em

erg

ency

Pu

shbu

tto

n

Du

ct S

mo

ke D

etec

tor

Co

ntro

l P

anel

DD

C C

ont

rols

BA

S/A

TC

Con

trol

All

Co

ntro

ls

HP-RTU1 H H E H H

H H H H H

E E E H H

Condensate Pump HP-CP1

H H H

H H H

E E E

Boiler HP-B1HP-B2HP-B3

H E E H H

H E E H H

E E E H H

Primary Hot Water Pump HP-P1HP-P2HP-P3

H E E H H

H E E H H

E E E H H

Secondary Hot Water Pump HP-P4HP-P5

H H H H

H H H H

E E H H

Air Curtain AC-1AC-2AC-3AC-4

H H H H

H H H H

E E E H




Equipment


Rem

ote

Dis

conn

ect

Sw

itch

Inte

gra

l D

isco

nnec

t S

wit

ch

Wal

l S

wit

ch

Co

rd &

Plu

g

Mag

net

ic M

oto

r S

tr

Co

mb

inat

ion

Mot

or

Str

Man

ual

Mot

or S

tr

VF

D w

ith

Dis

conn

ect

Co

ntac

tor

Lin

e V

olta

ge S

tat

Lo

w V

olta

ge S

tat

Em

erg

ency

Pu

shbu

tto

n

Du

ct S

mo

ke D

etec

tor

Co

ntro

l P

anel

DD

C C

ont

rols

BA

S/A

TC

Con

trol

All

Co

ntro

ls

Horizontal Unit Heater UH-1 thru UH-4

H E H

H E H

E E E

Fan Powered VAV Box FPU-101

H E H H

H E H H

E E H H

Ductless Split System CC-1

H E H

H E H

E E H

Ductless Split System EB-1

H E H

H E H

E E H

Fan Powered VAV Box FPU-102

H E H H

H E H H

E E H H

HPAHU-2Supply Fan #1

H H H H

H H H H

E E H H




Equipment


Rem

ote

Dis

conn

ect

Sw

itch

Inte

gra

l D

isco

nnec

t S

wit

ch

Wal

l S

wit

ch

Co

rd &

Plu

g

Mag

net

ic M

oto

r S

tr

Co

mb

inat

ion

Mot

or

Str

Man

ual

Mot

or S

tr

VF

D w

ith

Dis

conn

ect

Co

ntac

tor

Lin

e V

olta

ge S

tat

Lo

w V

olta

ge S

tat

Em

erg

ency

Pu

shbu

tto

n

Du

ct S

mo

ke D

etec

tor

Co

ntro

l P

anel

DD

C C

ont

rols

BA

S/A

TC

Con

trol

All

Co

ntro

ls


H H H H

H H H H

E E H H


H H H H

H H H H

E E H H


H H E H H

H H H H H

E E E H H

HPAHU-2Return Fan #1

H H H H

H H H H

E E H H


H H E H H

H H H H H

E E E H H

HPAHU-2UV-C Light

H E

H E

E E




Equipment


Rem

ote

Dis

conn

ect

Sw

itch

Inte

gra

l D

isco

nnec

t S

wit

ch

Wal

l S

wit

ch

Co

rd &

Plu

g

Mag

net

ic M

oto

r S

tr

Co

mb

inat

ion

Mot

or

Str

Man

ual

Mot

or S

tr

VF

D w

ith

Dis

conn

ect

Co

ntac

tor

Lin

e V

olta

ge S

tat

Lo

w V

olta

ge S

tat

Em

erg

ency

Pu

shbu

tto

n

Du

ct S

mo

ke D

etec

tor

Co

ntro

l P

anel

DD

C C

ont

rols

BA

S/A

TC

Con

trol

All

Co

ntro

ls

HPAHU-2Lights Internal to Unit

H H

H H

E E


H H E H H

H H H H H

E E E H H


H H H H

H H H H

E E H H


H H H H

H H H H

E E H H


H H H H

H H H H

E E H H


H H E H H

H H H H H

E E E H H




Equipment


Rem

ote

Dis

conn

ect

Sw

itch

Inte

gra

l D

isco

nnec

t S

wit

ch

Wal

l S

wit

ch

Co

rd &

Plu

g

Mag

net

ic M

oto

r S

tr

Co

mb

inat

ion

Mot

or

Str

Man

ual

Mot

or S

tr

VF

D w

ith

Dis

conn

ect

Co

ntac

tor

Lin

e V

olta

ge S

tat

Lo

w V

olta

ge S

tat

Em

erg

ency

Pu

shbu

tto

n

Du

ct S

mo

ke D

etec

tor

Co

ntro

l P

anel

DD

C C

ont

rols

BA

S/A

TC

Con

trol

All

Co

ntro

ls


H H E H H

H H H H H

E E E H H

HPAHU-4UV-C Light

H E

H E

E E


H H

H H

E E

Horizontal Unit Heater UH-13 & UH-14

H E H

H E H

E E E


H H E H H

H H H H H

E E E H H


H H E H H

H H H H H

E E E H H




Equipment


Rem

ote

Dis

conn

ect

Sw

itch

Inte

gra

l D

isco

nnec

t S

wit

ch

Wal

l S

wit

ch

Co

rd &

Plu

g

Mag

net

ic M

oto

r S

tr

Co

mb

inat

ion

Mot

or

Str

Man

ual

Mot

or S

tr

VF

D w

ith

Dis

conn

ect

Co

ntac

tor

Lin

e V

olta

ge S

tat

Lo

w V

olta

ge S

tat

Em

erg

ency

Pu

shbu

tto

n

Du

ct S

mo

ke D

etec

tor

Co

ntro

l P

anel

DD

C C

ont

rols

BA

S/A

TC

Con

trol

All

Co

ntro

ls

HPAHU-5Return Fan

H H E H H

H H H H H

E E E H H

HPAHU-5UV-C Light

H E

H E

E E


H H

H H

E E

Room Pressure Monitor –Bronch/Endo

H H H

H H H

H H H

Room Pressure Monitor – OR’s

H H H

H H H

H H H

Room Pressure Monitor – Isolation Rooms

H H H

H H H

H H H




Equipment


Rem

ote

Dis

conn

ect

Sw

itch

Inte

gra

l D

isco

nnec

t S

wit

ch

Wal

l S

wit

ch

Co

rd &

Plu

g

Mag

net

ic M

oto

r S

tr

Co

mb

inat

ion

Mot

or

Str

Man

ual

Mot

or S

tr

VF

D w

ith

Dis

conn

ect

Co

ntac

tor

Lin

e V

olta

ge S

tat

Lo

w V

olta

ge S

tat

Em

erg

ency

Pu

shbu

tto

n

Du

ct S

mo

ke D

etec

tor

Co

ntro

l P

anel

DD

C C

ont

rols

BA

S/A

TC

Con

trol

All

Co

ntro

ls

Room Pressure Monitor – Central Sterile

H H H

H H H

H H H

HPAHU-6Supply Fan

H H E H H

H H H H H

E E E H H

HPAHU-6Return Fan

H H E H H

H H H H H

E E E H H

HPAHU-6UV-C Light

H E

H E

E E


H H

H H

E E

Horizontal Unit Heater UH-5 thru UH-12

H E H

H E H

E E E




Equipment


Rem

ote

Dis

conn

ect

Sw

itch

Inte

gra

l D

isco

nnec

t S

wit

ch

Wal

l S

wit

ch

Co

rd &

Plu

g

Mag

net

ic M

oto

r S

tr

Co

mb

inat

ion

Mot

or

Str

Man

ual

Mot

or S

tr

VF

D w

ith

Dis

conn

ect

Co

ntac

tor

Lin

e V

olta

ge S

tat

Lo

w V

olta

ge S

tat

Em

erg

ency

Pu

shbu

tto

n

Du

ct S

mo

ke D

etec

tor

Co

ntro

l P

anel

DD

C C

ont

rols

BA

S/A

TC

Con

trol

All

Co

ntro

ls

Steam Pressure Reducing Valve –Electrically Operated PRV-10

H H H

H H H

H H H

Steam Pressure Reducing Valve –Electrically Operated PRV-17

H H H

H H H

H H H

Steam Pressure Reducing Valve –Electrically OperatedPRV-20

H H H

H H H

H H H

HP-EF1 HP-EF2HP-EF3 HP-EF5HP-EF6 HP-EF7

H H H

H H H

E E H

Heat Tracing Cable –Chilled Water Piping

H E H

H E H

E E H

Heat Tracing Cable –Chilled Water Piping

H E H

H E H

E E H




Equipment


Rem

ote

Dis

conn

ect

Sw

itch

Inte

gra

l D

isco

nnec

t S

wit

ch

Wal

l S

wit

ch

Co

rd &

Plu

g

Mag

net

ic M

oto

r S

tr

Co

mb

inat

ion

Mot

or

Str

Man

ual

Mot

or S

tr

VF

D w

ith

Dis

conn

ect

Co

ntac

tor

Lin

e V

olta

ge S

tat

Lo

w V

olta

ge S

tat

Em

erg

ency

Pu

shbu

tto

n

Du

ct S

mo

ke D

etec

tor

Co

ntro

l P

anel

DD

C C

ont

rols

BA

S/A

TC

Con

trol

All

Co

ntro

ls

Chilled Water Pump P-7

H H H H

H H H H

E E H H

Chilled Water Pump P-8

H H H H

H H H H

E E H H

B. Unless noted, Contractor responsible for wiring of an item shall be responsible for furnishing and installing all wiring for that item and making all connections associated with this wiring.

C. Electrical Contractor shall furnish and install wiring from duct smoke detector to fire alarm panel. Mechanical Contractor shall furnish and install wiring from normally open auxiliary contact on duct smoke detector to control circuitry for shut down of equipment if duct smoke detector is activated.


Documents

SECTION 230505 – HVAC BASIC MATERIALS PART … · wellspan ech health pavilion addition and renovation rfma 2014.13.01 hvac basic materials 230505 - 1 section 230505 – hvac basic