& COMPUTER ROOM ELECTRICAL UPGRADES tower equipment emergency generator city of richmond & computer room electrical upgrades section 230100-1 hvac general requirements section 230100

RADIO TOWER EQUIPMENT EMERGENCY GENERATOR CITY OF RICHMOND

& COMPUTER ROOM ELECTRICAL UPGRADES

TABLE OF CONTENTS

TECHNICAL SPECIFICATIONS

TABLE OF CONTENTS

DIVISION 23 – MECHANICAL SYSTEMS

230100 HVAC General Requirements

230513 Motors 230548 HVAC Vibration Controls

230553 Identification

230593 Testing, Adjusting, and Balancing

233113 Metal Ducts 233300 Air Duct Accessories

233423 HVAC System Fans

DIVISION 26 – ELECTRICAL SYSTEMS

260100 Basic Electrical Requirements

260500 Basic Electrical Materials and Methods

260529 Hangers and Supports 260533 Raceway and Boxes

260553 Identification for Electrical Systems

262416 Panelboards 263213 Natural Gas Packaged Engine Generator

263353 Static Transfer Switch

263370 Power Distribution Unit


& COMPUTER ROOM ELECTRICAL UPGRADES

TABLE OF CONTENTS


& COMPUTER ROOM ELECTRICAL UPGRADES SECTION 230100-1 HVAC GENERAL REQUIREMENTS

SECTION 230100 – HVAC GENERAL REQUIREMENTS

PART 1 - GENERAL

1.1. SUMMARY

A. This section includes general requirements and information for Division 23 work.

1.2. DEFINITIONS

A. Definitions:

1. Occupancy Conditions:

a. Full Owner Occupancy: Owner will occupy the site and existing building during

entire construction period.

2. Finished Spaces: Spaces other than mechanical and electrical equipment rooms, furred

spaces, pipe and duct chases, unheated spaces immediately below roof, spaces above

ceilings, unexcavated spaces, crawlspaces, and tunnels.

3. Exposed, Interior Installations: Exposed to view indoors. Examples include finished occupied spaces and mechanical equipment rooms.

4. Exposed, Exterior Installations: Exposed to view outdoors or subject to outdoor

ambient temperatures and weather conditions. Examples include rooftop locations.

1.3. INFORMATIONAL SUBMITTALS

A. Welding certificates.

1.4. QUALITY ASSURANCE

A. Welding Qualifications:

1. Installer Qualifications: Certify that each welder has passed AWS qualification tests for welding processes involved and that certification is current.

a. AWS D1.1, "Structural Welding Code--Steel."

b. AWS D1.3, "Structural Welding Code--Sheet Steel."

c. AWS D1.4, "Structural Welding Code--Reinforcing Steel."

1.5. PROJECT DOCUMENTS

A. The Division 23 project documents are diagrammatic in nature and are intended to represent complete and functioning systems. If any aspect of the work is undefined or unclear, submit

your questions in writing prior to the final addendum deadline as defined in the specifications

and/or at the pre-bid conference. If any aspect of the work is undefined or unclear after the



final addendum, include the cost for the highest quality solution. The contractor is

encouraged to thoroughly review the contract documents and site conditions prior to bidding.

B. Listed Manufacturers: Manufacturers listed in the Division 23 specification sections and on

drawings must meet all the requirements of the project documents. Listed manufacturers that

do not meet the requirements will not be accepted. In addition to construction and

performance requirements, the proposed equipment must meet the physical dimension and weight limitations of the project. Verify existing conditions in the field, when applicable, and

proposed conditions prior to submitting equipment for Engineer review. When full project

coordination drawings are not required, generate coordination drawings to the level of detail necessary to determine if the proposed equipment will comply with the project documents

and manufacturer recommended maintenance clearances.

1.6. COORDINATION

A. Maintenance Access: Install equipment and devices in such a manner to be readily accessible

for testing, adjusting, balancing, inspection and maintenance. All concealed equipment and

devices, shall be installed within accessible rooms. Equipment and/or devices not coordinated prior to installation, as judged by the Engineer, shall be removed and reinstalled at no added

cost.

1.7. VOC CONTENTS

A. Low Volatile Organic Compounds (VOC) Requirements: All adhesives, mastics, sealants

and compounds factory or field applied that are installed indoors and all paint field applied shall be certified as low VOC content when calculated according to 40 CFR 59, Subpart D

(EPA Method 24).

1. Adhesives: 50 g/L or less, except 80 g/L or less for calcium silicate and mineral fiber

insulation and 30 g/L or less for metal-to-metal adhesives.

2. Mastics: 50 g/L or less.

3. Sealants: 250 g/L or less for duct sealants and 420 g/L or less for equipment insulation

joint sealants.

4. Compounds: 490 g/L or less for CPVC welding compounds and 510 g/L or less for

PVC welding compounds.

5. Paints: 50 g/L or less for flat paints and primers and 150 g/L or less for non-flat paints.

PART 2 - PRODUCTS

2.1. PAINTS AND PRIMERS

A. General: Provide primers and paints designed for the intended applications. All primers and

paints used indoors shall be low-odor and low VOC content type.

B. Primers:

1. Metal Applications: Water-based rust-inhibitive primer.



2. Aluminum Applications: Quick-drying primer for aluminum.

3. Wood Applications: Latex-based wood primer.

4. Interior Applications: Interior latex primer/sealer.

C. Paints:

1. Interior Applications: High-performance interior latex.

2. Exterior Applications: Exterior latex.

3. Match gloss level to adjacent finishes when applicable. Flat gloss level for all other

applications, unless otherwise indicated.

2.2. CONCRETE MATERIALS

A. Concrete: Use the following unless otherwise indicated:

1. Equipment Housekeeping Pads: Light-weight aggregate with 3000 psi, 28-day minimum compressive strength.

2. Miscellaneous Uses: Medium-weight aggregate with 4000 psi, 28-day minimum

compressive strength.

B. Reinforcing Bars: ASTM A 615/A 615M, Grade 60, deformed.

C. Welded Wire Steel Reinforcement: ASTM A 185, fabricated from as-drawn steel wire into

flat sheets.

2.3. PATCHING MATERIALS

A. General: Comply with requirements specified in other Sections.

B. In-Place Materials: Use materials identical to in-place materials. For exposed surfaces, use materials that visually match in-place adjacent surfaces to the fullest extent possible.

1. If identical materials are unavailable or cannot be used, use materials that, when

installed, will match the visual and functional performance of in-place materials.

PART 3 - EXECUTION

3.1. DOCUMENTATION OF PROJECT CONDITIONS

A. Project Conditions: Document in digital-format photos and video the existing project

conditions and continue to document the conditions as the project progresses. Owner claims

of contractor damage will be judged by the documented conditions.

3.2. WELDING AND BRAZING

A. Generator Engine Exhaust:



1. Systems shall be fabricated, assembled and welded/brazed/ soldered in accordance with

ASME B31.3, and Power Piping Codes PFI ES 1, PFI ES 3, PFI ES 7, PFI ES 21, PFI ES 31, PFI ES 35, and PFI TB1 of the Piping Fabrication Institute's companion code

requirements.

B. Non-Destructive Inspection and Testing: Engineer shall visually inspect pipe welds. Based

on visual inspections, upon order of the Engineer, non-destructive testing of selected pipe welds shall be performed by a qualified testing agency, at the expense of the Owner, using

one of the following methods selected by the Engineer. The welds inspected shall be selected

randomly, but the selection shall include an examination of welds made by each welding operator or welder.

1. Radiographic testing in accordance with ASTM E 94:

a. Make identification of defects by comparing radiographs to reference radiographs in ASTM E 390.

b. Film shall positively and properly identify as to member being inspected,

location of weld, and location of film on weld.

c. Stamp identification on steel so film may be easily identified and matched to identification mark.

2. Ultrasonic testing in accordance with ASTM E 164:

a. Size of defects will be determined by relating amplitude of oscilloscope traces to hole in ASTM reference weldment.

b. Diameter of reference holes shall be 3/32-inch.

c. Weld defects which are cause for rejection include cracks, lack of fusion, incomplete penetration, porosity, or slag inclusions which produce reflections

equal to or greater than 80 percent of reference hole reflection and have linear

dimensions as indicated by transducer movement exceeding 1/4-inch for material

thickness up to and including 3/4-inch.

C. Correction of Defective Welds: If random testing reveals that any welds fail to meet

minimum quality requirements, an additional 10 percent of the welds in that same group shall

be inspected at the Contractor's expense. If all of the additional welds inspected meet the quality requirements, the entire group of welds represented shall be accepted and the

defective welds shall be repaired. If any of the additional welds inspected also fail to meet

the quality requirements, that entire group of welds shall be rejected. At the Contractor's

option, the rejected welds shall be removed and the joints re-welded or the rejected welds shall be 100 percent tested as hereinbefore specified and all defective weld areas removed

and re-welded.

1. If the initial testing reveals any deficient welds, then all initial and follow-up testing and all work required to replace the deficient welds shall be at the Contractor’s

expense.

2. If the initial testing does not reveal any deficiencies, then the initial testing shall be at the Owner’s expense.

3.3. PAINTING



A. Comply with manufacturer's written instructions and recommendations in "MPI Architectural

Painting Specification Manual" applicable to substrates indicated.

B. Clean substrates of substances that could impair bond of paints, including dirt, oil, grease,

and incompatible paints and encapsulants.

1. Remove incompatible primers and re-prime substrate with compatible primers as

required to produce paint systems indicated.

C. Apply paints to produce surface films without cloudiness, spotting, holidays, laps, brush

marks, roller tracking, runs, sags, ropiness, or other surface imperfections. Cut in sharp lines

and color breaks.

D. Painting of Division 23 Work: Paint items exposed in equipment rooms and occupied spaces

including, but not limited to, the following:

1. Visible portions of internal surfaces of metal ducts, without liner, behind air inlets and outlets.

2. Duct, equipment, and pipe insulation having cotton, canvas or metal insulation

covering or other paintable jacket material as required by Section 230553 and

elsewhere as indicated.

3. Mechanical equipment that is indicated to have a factory-primed finish for field

painting.

E. Protect work of other trades against damage from paint application. Correct damage to work of other trades by cleaning, repairing, replacing, and refinishing, as approved by Engineer,

and leave in an undamaged condition.

F. At completion of construction activities of other trades, touch up and restore damaged or defaced painted surfaces. Repair marred and damaged factory-painted finishes with materials

and procedures to match original factory finish.

3.4. CONCRETE

A. Design, construct, erect, brace, and maintain formwork according to ACI 301.

B. Comply with CRSI's "Manual of Standard Practice" for fabricating, placing, and supporting

reinforcement.

C. Comply with ACI 301 for measuring, batching, mixing, transporting, and placing concrete.

D. Equipment Concrete Bases: Housekeeping pads shall match the indicated dimensions but not

be less than required to extend 4-inches beyond the equipment footprint in each direction and

have chamfered edges.

1. Concrete Base Depths:

a. HVAC Equipment: Minimum 4-inches thick, unless otherwise indicated.

2. Install dowel rods to connect concrete base to concrete floor. Unless otherwise indicated, install dowel rods on 18-inch centers around the full perimeter of the base.

3. Install epoxy-coated anchor bolts for supported equipment that extend through concrete

base, and anchor into structural concrete floor.



4. Place and secure anchorage devices. Use supported equipment manufacturer's setting

drawings, templates, diagrams, instructions, and directions furnished with items to be embedded.

5. Install anchor bolts to elevations required for proper attachment to supported

equipment.

6. Install anchor bolts according to anchor-bolt manufacturer's written instructions.

3.5. PIPING SYSTEM INSTALLATION GENERAL REQUIREMENTS

A. Install piping according to the following requirements and Division 23 Sections specifying piping systems.

B. Drawing plans, schematics, and diagrams indicate general location and arrangement of piping

systems. Indicated locations and arrangements were used to size pipe and calculate friction loss, expansion, and other design considerations. Install piping as indicated unless deviations

to layout are approved on Coordination Drawings.

C. Install piping indicated to be exposed and piping in equipment rooms and service areas at

right angles or parallel to building walls. Diagonal runs are prohibited unless specifically indicated otherwise.

D. Install piping at indicated slopes.

E. Install piping free of sags and bends.

F. Install fittings for changes in direction and branch connections.

G. Verify final equipment locations for roughing-in.

H. Comply with manufacturer’s recommendations for equipment connections.

3.6. EQUIPMENT INSTALLATION GENERAL REQUIREMENTS

A. Install equipment to allow maximum possible headroom unless specific mounting heights are

not indicated.

B. Install equipment level and plumb, parallel and perpendicular to other building systems and

components in exposed interior spaces, unless otherwise indicated.

C. Install HVAC equipment to facilitate service, maintenance, and repair or replacement of components. Connect equipment for ease of disconnecting, with minimum interference to

other installations. Extend grease fittings to accessible locations.

D. Install equipment to allow right of way for piping installed at required slope.

END OF SECTION 23 01 00


& COMPUTER ROOM ELECTRICAL UPGRADES SECTION 230513-1 MOTOR REQUIREMENTS FOR HVAC EQUIPMENT

SECTION 230513 - MOTOR REQUIREMENTS FOR HVAC EQUIPMENT

PART 1 - GENERAL

1.1. SUMMARY

A. Section includes general requirements for all HVAC motors

PART 2 - PRODUCTS

2.1. GENERAL MOTOR REQUIREMENTS

A. Comply with NEMA MG 1 unless otherwise indicated.

B. Comply with IEEE 841 for severe-duty motors.

2.2. MOTOR CHARACTERISTICS

A. Duty: Continuous duty at ambient temperature of 40 deg C and at altitude of 3300 feet above

sea-level.

B. 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.

2.3. POLYPHASE MOTORS

A. Description: NEMA MG 1, Design B, medium induction motors.

1. General Use: Open drip-proof (ODP) motors.

B. Efficiency: NEMA Premium Efficiency rated motors.

C. Service Factor: 1.15.

D. Multispeed Motors: Variable torque.

1. For motors with 2:1 speed ratio, consequent pole, single winding.

2. For motors with other than 2:1 speed ratio, separate winding for each speed.

E. Rotor: Random-wound, squirrel cage.

F. Bearings: Regreasable, shielded, antifriction ball bearings suitable for radial and thrust

loading.

G. Temperature Rise: Class B.

H. Insulation: Class F.

I. Code Letter Designation:

1. Motors Smaller than 15 HP: Manufacturer's standard starting characteristic.


& COMPUTER ROOM ELECTRICAL UPGRADES SECTION 230513-2 MOTOR REQUIREMENTS FOR HVAC EQUIPMENT

J. Enclosure Material: Cast iron for motor frame sizes 324T and larger; rolled steel for motor

frame sizes smaller than 324T

K. Motors Used with Reduced-Voltage and Multispeed Controllers: Match wiring connection

requirements for controller with required motor leads. Provide terminals in motor terminal

box, suited to control method.

PART 3 - EXECUTION (Not Applicable)



& COMPUTER ROOM ELECTRICAL UPGRADES SECTION 230548-1 HVAC VIBRATION, WIND AND SEISMIC CONTROLS

SECTION 230548 – HVAC VIBRATION, WIND AND SEISMIC CONTROLS

PART 1 - GENERAL

1.1. SUMMARY

A. Section includes vibration and seismic control devices and related materials, including isolators, mounts, guides and supports.

B. Description: Delegated design of all equipment and materials installed under Division 23.

1. Vibration Isolation: Applies to all HVAC equipment and materials.

1.2. ACTION SUBMITTALS

A. Product Data: For each type of product.

1. Include rated load, rated deflection, and overload capacity for each vibration isolation

device.

2. Illustrate and indicate style, material, strength, fastening provision, and finish for each

type and size of vibration isolation, wind restraint and seismic restraint device required.


A. Welding Qualifications: Qualify procedures and personnel according to AWS D1.1/D1.1M, "Structural Welding Code - Steel."

PART 2 - PRODUCTS

2.1. MANUFACTUERS

A. Manufacturers: Subject to compliance with requirements, provide product by one of the

following for spring and elastomeric isolators:

1. Mason Industries, Inc.

2. Kinetics Noise Control, Inc.

3. Vibration Eliminator Company, Inc.

2.2. ELASTOMERIC HANGERS

A. Description: Elastomeric Mount in a Steel Frame with Upper and Lower Steel Hanger Rods.

1. Frame: Steel, fabricated with a connection for an upper threaded hanger rod and an

opening on the underside to allow for a maximum of 30 degrees of angular lower hanger-rod misalignment without binding or reducing isolation efficiency.

2. Dampening Element: Molded, oil-resistant rubber, neoprene, or other elastomeric

material with a projecting bushing for the underside opening preventing steel to steel contact.



2.3. SPRING HANGERS

A. Description: Combination Coil-Spring and Elastomeric-Insert Hanger with Spring and Insert

in Compression.

1. Frame: Steel, fabricated for connection to threaded hanger rods and to allow for a

maximum of 30 degrees of angular hanger-rod misalignment without binding or reducing isolation efficiency.

2. Outside Spring Diameter: Not less than 80 percent of the compressed height of the

spring at rated load.

3. Minimum Additional Travel: 50 percent of the required deflection at rated load.

4. Lateral Stiffness: More than 80 percent of rated vertical stiffness.

5. Overload Capacity: Support 200 percent of rated load, fully compressed, without deformation or failure.

6. Elastomeric Element: Molded, oil-resistant rubber or neoprene. Steel-washer-reinforced

cup to support spring and bushing projecting through bottom of frame.

7. Adjustable Vertical Stop: Steel washer with neoprene washer "up-stop" on lower threaded rod.

8. Self-centering hanger-rod cap to ensure concentricity between hanger rod and support

spring coil.

2.4. MECHANICAL ANCHOR BOLTS

A. Mechanical Anchor Bolts: Drilled-in and stud-wedge or female-wedge type in zinc-coated

steel for interior applications and stainless steel for exterior applications. Select anchor bolts

with strength required for anchor and as tested according to ASTM E 488.

2.5. ADHESIVE ANCHOR BOLTS

A. Adhesive Anchor Bolts: Drilled-in and capsule anchor system containing PVC or urethane

methacrylate-based resin and accelerator, or injected polymer or hybrid mortar adhesive. Provide anchor bolts and hardware with zinc-coated steel for interior applications and

stainless steel for exterior applications. Select anchor bolts with strength required for anchor

and as tested according to ASTM E 488.

PART 3 - EXECUTION

3.1. EXAMINATION

A. Examine areas and equipment to receive vibration isolation and seismic and wind control

devices for compliance with requirements for installation tolerances and other conditions

affecting performance of the Work.



B. Examine roughing-in of reinforcement and cast-in-place anchors to verify actual locations

before installation.

C. Proceed with installation only after unsatisfactory conditions have been corrected.

3.2. FIELD QUALITY CONTROL

A. Perform tests and inspections:

1. Measure isolator restraint clearance.

2. Measure isolator deflection.

B. Remove and replace malfunctioning units and retest as specified above.

C. Prepare test and inspection reports.

3.3. ADJUSTING

A. Adjust limit stops on restrained-spring isolators to mount equipment at normal operating

height. After equipment installation is complete, adjust limit stops so they are out of contact

during normal operation.





& COMPUTER ROOM ELECTRICAL UPGRADES SECTION 230553-1 IDENTIFICATION FOR HVAC PIPING AND EQUIPMENT

SECTION 230553 - IDENTIFICATION FOR HVAC PIPING AND EQUIPMENT

PART 1 - GENERAL

1.1. SUMMARY

A. Section includes equipment, pipe and duct labels and tags.


A. Product Data: For each type of product indicated.

B. Samples: For color, letter style, and graphic representation required for each identification

material and device.

1.3. COORDINATION

A. Coordinate installation of identifying devices with completion of covering and painting of

surfaces where devices are to be applied.

B. Coordinate installation of identifying devices with locations of access panels and doors.

PART 2 - PRODUCTS

2.1. EQUIPMENT LABELS

A. Plastic Labels for Equipment: 1/8-inch multilayer, multicolor, plastic labels for mechanical

engraving suitable for temperatures up to 160 deg F with pre-drilled holes for stainless steel rivets or self-tapping screws. Labels shall be minimum 6 inches wide and 2-inch tall with

1.25-inch white letters on black background.

1. TAGS MUST BE MECHANICALLY FASTENED.

B. Label Content: Include equipment's drawing designation or unique equipment number.

2.2. PIPE LABELS

A. Pipe Label Contents: Include identification of piping service using same designations or abbreviations as used on Drawings, pipe size, and an arrow indicating flow direction.

1. Flow-Direction Arrows: Integral with piping system service lettering to accommodate

both directions, or as separate unit on each pipe label to indicate flow direction.

2. Lettering Size: At least 1-1/2 inches high.

2.3. DUCT LABELS

A. Duct Label Contents: Include identification of duct service using same designations or abbreviations as used on drawings, duct size, and an arrow indicating flow direction.


& COMPUTER ROOM ELECTRICAL UPGRADES SECTION 230553-2 IDENTIFICATION FOR HVAC PIPING AND EQUIPMENT

1. Flow-Direction Arrows: Integral with duct system service lettering to accommodate

both directions, or as separate unit on each duct label to indicate flow direction.

2. Lettering Size: At least 1-1/2 inches high.

2.4. STENCILS

A. Stencils: Prepared with letter sizes according to ASME A13.1 for piping; minimum letter height of 1-1/4 inches for ducts; and minimum letter height of 3/4 inch for access panel and

door labels, equipment labels, and similar operational instructions. Stencil paint shall be

exterior, gloss, acrylic enamel.

PART 3 - EXECUTION

3.1. PREPARATION

A. Clean piping and equipment surfaces of substances that could impair bond of identification

devices, including dirt, oil, grease, release agents, and incompatible primers, paints, and

encapsulants.

3.2. EQUIPMENT LABEL INSTALLATION

A. Permanently fasten labels on each major item of mechanical equipment.

B. Locate equipment labels where accessible and visible.

3.3. PIPE LABEL INSTALLATION

A. Stencil pipe labels where piping is exposed:

1. Spaced at maximum intervals of 25 feet along each run. Reduce intervals to 10 feet in

areas of congested piping and equipment.

B. Pipe Label Color Schedule:

1. Engine Exhaust: Black background with Red letters and flow arrows.

2. Natural Gas, LP Gas and Fuel Oil Piping: Bright Yellow background with Black

letters and flow arrows.

3.4. DUCT LABEL INSTALLATION

A. Stenciled Duct Label: Stenciled labels, showing service and flow direction,

B. Locate labels near points where ducts enter into concealed spaces and at maximum intervals of 25 feet in each space where ducts are exposed or concealed by removable ceiling system.



& COMPUTER ROOM ELECTRICAL UPGRADES SECTION 230593-1 TESTING, ADJUSTING AND BALANCING

SECTION 230593 - TESTING, ADJUSTING AND BALANCING

PART 1 - GENERAL

1.1. SUMMARY

A. Section includes testing, adjusting and balancing (TAB) of air systems

1. HVAC Air Systems:

a. TAB of new central and dedicated HVAC air systems including supply and exhaust air to design requirements.

1.2. INFORMATIONAL SUBMITTALS

A. Qualification Data: Within 30 days of the Notice to Proceed, submit documentation that the

TAB contractor and the project's TAB team members meet the qualifications specified in

"Quality Assurance".

B. Instrument calibration reports, to include the following: instrument type and make; serial

number; application; dates of use; and dates of calibration.

1.3. CLOSEOUT SUBMITTALS

A. Final certified TAB report with all systems in a single report.


A. TAB Contractor Qualifications: Engage a TAB entity certified by the Associated Air Balance

Council (AABC) or National Environmental Balancing Bureau (NEBB).

1. TAB Field Supervisor: TAB contractor employee who is certified by AABC or NEBB.

2. TAB Technician: TAB contractor employee who is certified by AABC or NEBB.

B. Certify TAB field data reports and perform the following:

1. Review field data reports to validate accuracy of data and to prepare certified TAB

reports.

2. Certify that the TAB team complied with the approved TAB plan and the procedures

specified and referenced in this Specification.

C. TAB Report Forms: Use standard AABC report forms as reviewed by the engineer.

D. Instrumentation Type, Quantity, Accuracy, and Calibration: As described in ASHRAE-111,

Section 5, "Instrumentation."

E. ASHRAE Compliance: Applicable requirements in ASHRAE 62.1, Section 7.2.2 - "Air

Balancing."

F. ASHRAE/IESNA Compliance: Applicable requirements in ASHRAE/IESNA 90.1,

Section 6.7.2.3 - "System Balancing."

1.5. PROJECT CONDITIONS



A. 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.

1.6. COORDINATION

A. Notice: Provide 10 day notice for each test. Include scheduled test dates and times.

PART 2 - PRODUCTS (Not Applicable)

PART 3 - EXECUTION

3.1. EXAMINATION

A. Examine the Contract Documents to become familiar with Project requirements and to

discover conditions in systems' designs that may preclude proper TAB of systems and equipment.

B. Examine the approved submittals for HVAC systems and equipment.

C. Examine design data including HVAC system descriptions, statements of design assumptions

for environmental conditions and systems' output, and statements of philosophies and assumptions about HVAC system and equipment controls.

D. Examine equipment performance data including fan curves.

E. Examine system and equipment installations and verify that field quality-control testing, cleaning, and adjusting specified in individual Sections have been performed.

F. Examine test reports specified in individual system and equipment Sections.

G. Examine HVAC equipment and filters and verify that bearings are greased, belts are aligned and tight, and equipment with functioning controls is ready for operation.

3.2. PREPARATION

A. Complete system-readiness checks and prepare reports. Verify the following:

1. Permanent electrical-power wiring is complete.

2. Ceilings are installed in critical areas where air-pattern adjustments are required and

access to balancing devices is provided.

3. Windows and doors can be closed so indicated conditions for system operations can be

met.

3.3. GENERAL PROCEDURES FOR TESTING AND BALANCING

A. Perform testing and balancing procedures on each system according to the procedures

contained in ASHRAE-111 and in this Section.

1. Comply with requirements in ASHRAE-62.1, Section-7.2.2 - "Air Balancing."

B. Cut insulation, ducts, pipes, and equipment cabinets for installation of test probes to the

minimum extent necessary for TAB procedures.



1. After testing and balancing, install test ports and duct access doors that comply with

requirements in Section 233300 "Air Duct Accessories."

2. Install and join new insulation that matches removed materials. Restore insulation,

coverings, vapor barrier, and finish according to specifications.

C. Mark equipment and balancing devices, including damper-control positions, valve position

indicators, fan-speed-control levers, and similar controls and devices, with paint or other suitable, permanent identification material to show final settings.

D. Take and report testing and balancing measurements in inch-pound (IP) units.

3.4. GENERAL PROCEDURES FOR BALANCING AIR SYSTEMS

A. Prepare test reports for both fans and outlets. Obtain manufacturer's outlet factors and

recommended testing procedures. Crosscheck the summation of required outlet volumes with required fan volumes.

B. Prepare schematic diagrams of systems' "as-built" duct layouts.

C. Determine the best locations in main and branch ducts for accurate duct-airflow

measurements.

D. Locate start-stop and disconnect switches, electrical interlocks, and motor starters.

E. Verify that motor starters are equipped with properly sized thermal protection.

F. Check for airflow blockages.

G. Verify that air duct system is sealed as specified.

3.5. PROCEDURES FOR CONSTANT-VOLUME AIR SYSTEMS

A. Adjust fans to deliver total indicated airflows within the maximum allowable fan speed listed

by fan manufacturer.

1. Measure total airflow.

a. Where sufficient space in ducts is unavailable for Pitot-tube traverse measurements, measure airflow at terminal outlets and inlets and calculate the

total airflow.

2. Measure fan static pressures as follows to determine actual static pressure:

a. Measure outlet static pressure as far downstream from the fan as practical and

upstream from restrictions in ducts such as elbows and transitions.

b. Measure static pressure directly at the fan outlet.

c. Measure inlet static pressure of single-inlet fans in the inlet duct as near the fan as possible, upstream from the flexible connection, and downstream from duct

restrictions.

d. Measure inlet static pressure of double-inlet fans through the wall of the plenum that houses the fan.

3. Measure static pressure across each component that makes up an air-handling unit,

rooftop unit, and other air-handling and -treating equipment.



4. Do not make fan-speed adjustments that result in motor overload. Consult equipment

manufacturers about fan-speed safety factors. Measure fan-motor amperage to ensure that no overload will occur. Measure amperage to determine the maximum required

brake horsepower.

B. Measure air outlets and inlets without making adjustments.

1. Measure terminal outlets using a direct-reading hood or outlet manufacturer's written instructions and calculating factors.

3.6. TOLERANCES

A. Set HVAC system's air flow rates within the following tolerances:

1. Supply, and Exhaust Fans and Equipment with Fans: Plus or minus 10 percent.

2. Air Outlets and Inlets: Plus or minus 10 percent.

3.7. FINAL REPORT

A. General: Prepare a certified written report; tabulate and divide the report into separate

sections for tested systems and balanced systems.

1. Include a certification sheet at the front of the report's binder, signed and sealed by the

certified testing and balancing engineer.

2. Include a list of instruments used for procedures, along with proof of calibration.

B. Final Report Contents: In addition to certified field-report data, include the following:

1. Fan curves.

2. Manufacturers' test data.

3. Field test reports prepared by system and equipment installers.

4. Other information relative to equipment performance; do not include Shop Drawings

and product data.

C. General Report Data: In addition to form titles and entries, include the following data:

1. Title page.

2. Name and address of the TAB contractor.

3. Project name.

4. Project location.

5. Architect's name and address.

6. Engineer's name and address.

7. Contractor's name and address.

8. Report date.

9. Signature of TAB supervisor who certifies the report.

10. Table of Contents with the total number of pages defined for each section of the report. Number each page in the report.



11. Summary of contents including the following:

a. Indicated versus final performance.

b. Notable characteristics of systems.

c. Description of system operation sequence if it varies from the contract

documents.

12. Nomenclature sheets for each item of equipment.

13. Data for terminal units, including manufacturer's name, type, size, and fittings.

14. Notes to explain why certain final data in the body of reports vary from indicated

values.

15. Test conditions for fans performance forms including the following:

a. Fan drive settings including settings and percentage of maximum pitch diameter.

D. Fan Test Reports: For supply and exhaust fans, include the following:

1. Fan Data:

a. System identification.

b. Location.

c. Make and type.

d. Model number and size.

e. Manufacturer's serial number.

f. Arrangement and class.

g. Sheave make, size and bore.

h. Center-to-center dimensions of sheave, and amount of adjustment.

2. Motor Data:

a. Motor make, and frame type and size.

b. Horsepower and rpm.

c. Volts, phase, and hertz.

d. Full-load amperage and service factor.

3. Test Data (Indicated and Actual Values):

a. Total airflow rate.

b. Total system static pressure.

c. Fan rpm.

d. Discharge static pressure.

e. Suction static pressure.

E. Instrument Calibration Reports:

1. Report Data:

a. Instrument type and make.



b. Serial number.

c. Application.

d. Dates of use.

e. Dates of calibration.

3.8. INSPECTIONS

A. Inspection:

1. After testing and balancing is complete, operate each system and randomly check

measurements to verify that the system is operating according to the final test and balance readings documented in the final report.

2. Check the following for each system:

a. Measure airflow of at least 100 percent of air outlets/inlets.

b. Note deviations from the contract documents in the final report.

B. TAB Work will be considered defective if it does not pass final inspections. If TAB Work

fails, proceed as follows:

1. Recheck all measurements and make adjustments. Revise the final report and balancing device settings to include all changes; resubmit the final report and request a second

inspection.

2. If the second inspection also fails, owner may contract the services of another TAB contractor to complete TAB work according to the contract documents and deduct the

cost of the services from the original TAB contractor's final payment.




& COMPUTER ROOM ELECTRICAL UPGRADES SECTION 233113-1 METAL DUCTS

SECTION 233113 - METAL DUCTS

PART 1 - GENERAL

1.1. SUMMARY

A. Section includes single-wall oval and rectangular metal duct and fittings and associated duct

liner, sealants, gaskets, hangers and supports.

1.2. PERFORMANCE REQUIREMENTS

A. Delegated Duct Design: Duct construction, including sheet metal thicknesses, seam and joint construction, reinforcements, and hangers and supports, shall comply with SMACNA's

"HVAC Duct Construction Standards - Metal and Flexible" and performance requirements

and design criteria indicated in "Duct Schedule" Article.

B. Airstream Surfaces: Surfaces in contact with the airstream shall comply with requirements in

ASHRAE-62.1.


A. Product Data: For each type of adhesives and sealants and gaskets.

B. Shop Drawings: For all new ductwork and accessories.

1. Factory- and shop-fabricated ducts and fittings.

2. Reinforcement and spacing.

3. Seam and joint construction.

4. Hangers and supports, including methods for duct and building attachment and vibration isolation.

5. Sheet metal thicknesses.

PART 2 - PRODUCTS

2.1. GENERAL DUCT AND FITTINGS CONSTRUCTION REQUIREMENTS

A. General Fabrication Requirements: Comply with SMACNA's "HVAC Duct Construction Standards - Metal and Flexible" based on indicated static-pressure class listed in Part 3, with

the following exceptions:

1. Minimum Sheet Metal Thickness:

a. Galvanized Sheet Steel: 0.0276-inches (24 gage).

B. General Cleanliness Requirements: Comply with SMACNA’s “Duct Cleanliness for New

Construction Guidelines”.

1. Minimum Duct Cleanliness Level: C (“Advanced Level”)



a. Internal surfaces shall be wiped clean after fabrication prior to sealing for

shipment.

b. Self-adhesive labels may be affixed to only the outside surfaces of the duct.

C. Duct Dimensions: Dimensions in the construction documents indicate as follows:

1. Rectangular Duct: Nominal inside width and height of the duct.

2. Round Duct: Nominal inside diameter of the duct.

3. Oval Duct: Nominal inside width and depth diameter (of the round sides connecting

the flat portions) of the duct.

D. Rectangular Ducts shall comply with the following standards:

1. Transverse Joints: Select joint types and fabricate according to SMACNA's "HVAC

Duct Construction Standards - Metal and Flexible," Figure 2-1, "Rectangular

Duct/Transverse 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 2-2, "Rectangular Duct/Longitudinal Seams," 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 4, "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."

E. Round and Flat Oval Ducts shall comply with the following standards:

1. Transverse Joints: Select joint types and fabricate according to SMACNA's "HVAC

Duct Construction Standards - Metal and Flexible," Figure 3-1, "Round Duct

Transverse 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. Transverse Joints in Ducts Larger Than 60-inches diameter: Flanged.

3. Longitudinal Seams: Select seam types and fabricate according to SMACNA's "HVAC Duct Construction Standards - Metal and Flexible," Figure 3-2, "Round Duct

Longitudinal Seams," 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."

4. Tees and Laterals: Select types and fabricate according to SMACNA's "HVAC Duct

Construction Standards - Metal and Flexible," Figure 3-5, "90 Degree Tees and Laterals," and Figure 3-6, "Conical Tees," 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."



2.2. SHEET METAL MATERIALS

A. General Material Requirements: Comply with SMACNA's "HVAC Duct Construction Standards - Metal and Flexible" for acceptable materials, material thicknesses, and duct

construction methods unless otherwise indicated. Sheet metal materials shall be free of

pitting, seam marks, roller marks, stains, discolorations, and other imperfections.

B. Galvanized Sheet Steel: Comply with ASTM A 653/A 653M.

1. Galvanized Coating Designation:

a. Outdoor Applications: G90.

C. Reinforcement Shapes and Plates: ASTM A 36/A 36M, steel plates, shapes, and bars; black and galvanized.

1. Where black- and galvanized-steel shapes and plates are used to reinforce aluminum

ducts, isolate the different metals with butyl rubber, neoprene, or EPDM gasket materials.

D. Tie Rods: Galvanized steel, 1/4-inch minimum diameter for lengths 36 inches or less; 3/8-

inch minimum diameter for lengths longer than 36 inches.

2.3. SEALANT AND GASKETS

A. General Sealant and Gasket Requirements: Surface-burning characteristics for sealants and

gaskets shall be a maximum flame-spread index of 25 and a maximum smoke-developed

index of 50 when tested according to UL 723; certified by an NRTL.

B. Water-Based Joint and Seam Sealant:

1. Application Method: Brush on.

2. Solids Content: Minimum 65 percent.

3. Shore A Hardness: Minimum 20.

4. Water resistant.

5. Mold and mildew resistant.

6. VOC: Maximum 75 g/L (less water).

7. Maximum Static-Pressure Class: 10-inch wg, positive and negative.

8. Service: Indoor or outdoor.

9. Substrate: Compatible with galvanized sheet steel (both PVC coated and bare),

stainless steel, or aluminum sheets.

C. Flanged Joint Sealant: Comply with ASTM C 920.

1. General: Single-component, acid-curing, silicone, elastomeric.

2. Type: S.

3. Grade: NS.

4. Class: 25.



5. Use: O.

6. For indoor applications, sealant shall have a VOC content of 250 g/L or less when calculated according to 40 CFR 59, Subpart D (EPA Method 24).

D. Flange Gaskets: Butyl rubber, neoprene, or EPDM polymer with polyisobutylene plasticizer.

2.4. HANGERS AND SUPPORTS

A. Hanger Rods for Noncorrosive Environments: Cadmium-plated steel rods and nuts.

B. Strap and Rod Sizes: Comply with SMACNA's "HVAC Duct Construction Standards - Metal

and Flexible," Table 5-1, "Rectangular Duct Hangers Minimum Size," and Table 5-2, "Minimum Hanger Sizes for Round Duct."

C. Duct Attachments: Sheet metal screws, blind rivets, or self-tapping metal screws; compatible

with duct materials.

PART 3 - EXECUTION

3.1. DUCT INSTALLATION

A. Drawing plans, schematics, and diagrams indicate general location and arrangement of duct system. Indicated duct locations, configurations, and arrangements were used to size ducts

and calculate friction loss for air-handling equipment sizing and for other design

considerations. Install duct systems as indicated unless deviations to layout are approved on Shop Drawings and Coordination Drawings.

B. Install ducts according to SMACNA's "HVAC Duct Construction Standards - Metal and

Flexible" unless otherwise indicated.

C. Install ducts according to SMACNA’s “Duct Cleanliness for New Construction Guidelines”.

1. Store duct, fittings and accessories on pallets in a clean and dry location.

2. All sections of duct, fittings and accessories shall be sealed for shipping and storage.

They may be sealed at all openings with polyethylene film, shrink-wrapped, bagged or equivalent. Exposed openings shall remain sealed until temporary filtration is in place.

3. Internal surfaces shall be wiped clean as each is installed to prevent construction dust

and debris from accumulating.

D. Install round and flat-oval ducts in maximum practical lengths.

E. Install ducts with fewest possible joints.

F. Install factory- or shop-fabricated fittings for changes in direction, size, and shape and for

branch connections.

G. Unless otherwise indicated, install ducts vertically and horizontally, and parallel and

perpendicular to building lines.

H. Install ducts close to walls, overhead construction, columns, and other structural and permanent enclosure elements of building.

I. Protect duct interiors from moisture, construction debris and dust, and other foreign materials.

Comply with SMACNA's "IAQ Guidelines for Occupied Buildings Under Construction," Appendix G, "Duct Cleanliness for New Construction Guidelines."



3.2. INSTALLATION OF EXPOSED DUCTWORK

A. Protect ducts exposed in finished spaces from being dented, scratched, or damaged.

B. Trim duct sealants flush with metal. Create a smooth and uniform exposed bead. Do not use

two-part tape sealing system.

C. Grind welds to provide smooth surface free of burrs, sharp edges, and weld splatter.

D. Maintain consistency, symmetry, and uniformity in the arrangement and fabrication of

fittings, hangers and supports, duct accessories, and air outlets.

E. Repair or replace damaged sections and finished work that does not comply with these requirements.

3.3. HANGER AND SUPPORT INSTALLATION

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

Chapter 5, "Hangers and Supports."

B. Building Attachments: Concrete inserts, powder-actuated fasteners, or structural-steel

fasteners appropriate for construction materials to which hangers are being attached.

1. Where practical, install concrete inserts before placing concrete.

2. Install powder-actuated concrete fasteners after concrete is placed and completely

cured.

3. Use powder-actuated concrete fasteners for standard-weight aggregate concretes or for

slabs more than 4 inches thick.

4. Do not use powder-actuated concrete fasteners for lightweight-aggregate concretes or for slabs less than 4 inches thick.

5. Do not use powder-actuated concrete fasteners for seismic restraints.

C. Hanger Spacing: Comply with SMACNA's "HVAC Duct Construction Standards - Metal and

Flexible," Table 5-1, "Rectangular Duct Hangers Minimum Size," and Table 5-2, "Minimum Hanger Sizes for Round Duct," for maximum hanger spacing; install hangers and supports

within 24 inches of each elbow and within 48 inches of each branch intersection.

D. Hangers Exposed to View: Threaded rod and angle or channel supports.

E. Support vertical ducts with steel angles or channel secured to the sides of the duct with welds,

bolts, sheet metal screws, or blind rivets; support at each floor and at maximum intervals of

10 feet.

F. Install upper attachments to structures. Select and size upper attachments with pull-out, tension, and shear capacities appropriate for supported loads and building materials where

used.

3.4. CONNECTIONS

A. Make connections to equipment with flexible connectors.

B. Comply with SMACNA's "HVAC Duct Construction Standards - Metal and Flexible" for branch, outlet and inlet, and terminal unit connections.




A. Perform inspections.

B. Reseal any noticeable air leakage, stiffen duct ballooning, and correct vibrations.

3.6. DUCT SCHEDULE

A. Fabricate ducts to the requirements indicated.

1. Medium Pressure Air Systems:

a. Construction: Single-wall galvanized sheet steel when concealed or exposed to

view in mechanical spaces.

b. Static Pressure Class: 4-inches w.g

c. SMACNA Seal Class: A

d. SMACNA Leakage Class: 3

B. Elbow Configuration:

1. Rectangular Duct: Comply with SMACNA's "HVAC Duct Construction Standards -

Metal and Flexible," Figure 4-2, "Rectangular Elbows."

a. Radius Type RE-1 with minimum 1.5 radius-to-diameter ratio.

2. Round Duct: Comply with SMACNA's "HVAC Duct Construction Standards - Metal

and Flexible," Figure 3-4, "Round Duct Elbows."

a. Minimum Radius-to-Diameter Ratio and Elbow Segments: Comply with SMACNA's "HVAC Duct Construction Standards - Metal and Flexible," Table

3-1, "Mitered Elbows." Elbows with less than 90-degree change of direction have

proportionately fewer segments.

b. Velocity 1000 fpm or Lower: 0.5 radius-to-diameter ratio and three segments for 90-degree elbow.

c. Velocity 1000 to 1500 fpm: 1.0 radius-to-diameter ratio and four segments for

90-degree elbow.

d. Velocity 1500 fpm or Higher: 1.5 radius-to-diameter ratio and five segments for

90-degree elbow.

e. Round Elbows, 12 Inches and Smaller in Diameter: Stamped or pleated.

f. Round Elbows, 14 Inches and Larger in Diameter: Welded



& COMPUTER ROOM ELECTRICAL UPGRADES SECTION 233300-1 AIR DUCT ACCESSORIES

SECTION 233300 - AIR DUCT ACCESSORIES

PART 1 - GENERAL

1.1. SUMMARY

A. Section includes air duct accessories including flexible ducts; flange and flexible connectors; duct-mounted access doors; and duct hardware.


A. Product Data: For each type of product.


A. Operation and Maintenance Data: For air duct accessories to include in operation and

maintenance manuals.

PART 2 - PRODUCTS

2.1. ASSEMBLY DESCRIPTION

A. Comply with NFPA 90A, "Installation of Air Conditioning and Ventilating Systems," and with NFPA 90B, "Installation of Warm Air Heating and Air Conditioning Systems."

B. Comply with SMACNA's "HVAC Duct Construction Standards - Metal and Flexible" for

acceptable materials, material thicknesses, and duct construction methods unless otherwise indicated. Sheet metal materials shall be free of pitting, seam marks, roller marks, stains,

discolorations, and other imperfections.

2.2. MATERIALS

A. Galvanized Sheet Steel: Comply with ASTM A 653/A 653M.

1. Galvanized Coating Designation: G60.

2. Exposed-Surface Finish: Mill phosphatized.

B. Reinforcement Shapes and Plates: Galvanized-steel reinforcement where installed on

galvanized sheet metal ducts.

C. Tie Rods: Galvanized steel, 1/4-inch minimum diameter for lengths 36 inches or less; 3/8-

inch minimum diameter for lengths longer than 36 inches.

2.3. DUCT-MOUNTED ACCESS DOORS

A. General: Factory-fabricated access panels according to SMACNA's "HVAC Duct Construction Standards - Metal and Flexible"; Figures 7-2, "Duct Access Doors and Panels,"

and 7-3, "Access Doors - Round Duct."



1. Doors: Double wall, minimum 20-gauge galvanized sheet metal with 1-inch mineral

fiber or foam insulation fill and thickness and be air-tight suitable for duct pressure and leakage classification.

2. Frames: Galvanized sheet steel, with bend-over tabs and foam or neoprene gaskets.

Security chain to restrain door to frame.

3. Hinges and Latches: 24-inches square or smaller, continuous piano hinge and 2 cam latches; 24-inches x 48-inches or smaller, continuous piano hinge and 2 cam latches;

and larger than 24-inches x 48-inches, continuous piano hinge and 3 cam latches.

B. Access doors must be installed prior to duct pressure and leakage testing. If the Engineer determines the access doors cannot meet the requirements of the testing, they shall be

replaced with a higher quality door at the contractor’s expense.

2.4. FLEXIBLE CONNECTORS

A. Materials: Flame-retardant or noncombustible fabrics.

B. Coatings and Adhesives: Comply with UL 181, Class 1.

C. Metal-Edged Connectors: Factory fabricated with a fabric strip 3-1/2 inches wide attached to two strips of 2-3/4-inch wide, 0.028-inch thick, galvanized sheet steel or 0.032-inch thick

aluminum sheets. Provide metal compatible with connected ducts.

D. Indoor System, Flexible Connector Fabric: Glass fabric double coated with neoprene with a minimum weight of 26 oz/sqyd; tensile strength of 480 lbf/inch in the wrap and 360 lbf/inch

in the filling; and a service temperature range of (-) 40 deg F to 200 deg F.

E. Thrust Limits: Combination coil spring and elastomeric insert with spring and insert in compression, and with a load stop. Include rod and angle-iron brackets for attaching to fan

discharge and duct. They shall be factory-fabricated for HVAC applications up to 10-inches

w.g. of pressure.

F. Grounding Straps: Flexible braided copper grounding strips, flat or round, providing an equivalent ampacity of a #6 AWG conductor.

PART 3 - EXECUTION

3.1. INSTALLATION

A. Install duct accessories according to applicable details in SMACNA's "HVAC Duct

Construction Standards - Metal and Flexible" for metal ducts and in NAIMA AH116, "Fibrous Glass Duct Construction Standards," for fibrous-glass ducts.

B. Install duct accessories of materials suited to duct materials; use galvanized-steel accessories

in galvanized-steel and fibrous-glass ducts.

C. Install flexible connectors to connect ducts to equipment. Install flexible grounding strip(s)

from equipment to duct.

D. Install thrust limits at centerline of thrust, symmetrical on both sides of equipment. Attach thrust limits at centerline of thrust and adjust to a maximum of 1/4-inch movement during

start and stop of fans.




A. Tests and Inspections:

1. Inspect locations of access doors and verify that purpose of access door can be

performed.





& COMPUTER ROOM ELECTRICAL UPGRADES SECTION 233423-1 HVAC SYSTEM FANS

SECTION 233423 - HVAC SYSTEM FANS

PART 1 - GENERAL

1.1. SUMMARY

A. Section includes in-line vane axial fans.

1.2. PERFORMANCE REQUIREMENTS

A. Operating Limits: Classify according to AMCA 99.


A. Product Data: For each type of product indicated. Include rated capacities, operating characteristics, and furnished specialties and accessories. The product data shall also include

the following: certified fan performance curves with system operating conditions indicated;

certified fan sound-power ratings; motor ratings and electrical characteristics, plus motor and

electrical accessories; material thickness and finishes; dampers, including housings, linkages, and operators; roof curbs; and fan speed controllers.


A. Operation and Maintenance Data: For power ventilators to include in emergency, operation,

and maintenance manuals.

1.5. MAINTENANCE MATERIAL SUBMITTALS

A. Furnish extra materials that match products installed and that are packaged with protective

covering for storage and identified with labels describing contents.

PART 2 - PRODUCTS

2.1. GENERAL REQUIREMENTS

A. Manufacturers: Subject to compliance with requirements, provide products by the following:

1. Greenheck Fan Corp.

2. Loren Cook Company

3. PennBarry

4. Twin City Fan and Blower

B. Description: Factory fabricated, assembled, tested, and finished, direct-driven (as scheduled) fans consisting of housing, wheel, fan shaft, bearings, motor, drive assembly and support

structure with factory installed and wired service disconnect switch. Deliver fans as factory-

assembled units, to the extent allowable by shipping limitations.

C. AMCA Compliance: Comply with AMCA performance requirements and bear the AMCA-

Certified Ratings Seal. Classify operating limits according to AMCA 99.



1. Sound-Power Level Ratings: Comply with AMCA 301, "Methods for Calculating Fan

Sound Ratings from Laboratory Test Data." Factory test fans according to AMCA 300, "Reverberant Room Method for Sound Testing of Fans." Label fans with the AMCA-

Certified Ratings Seal.

2. Fan Performance Ratings: Establish flow rate, pressure, power, air density, speed of

rotation, and efficiency by factory tests and ratings according to AMCA 210/ASHRAE 51, "Laboratory Methods of Testing Fans for Certified Aerodynamic Performance

Rating."

D. Shafts: Fan shafts shall be statically and dynamically balanced and selected for continuous operation at maximum rated fan speed and motor horsepower, with adjustable alignment.

Shafts shall be turned, ground, and polished hot-rolled steel with keyway and finished with an

anti-corrosive coating. They shall be designed to operate at no more than 70 percent of first critical speed at top of fan's speed range.

E. Pre-lubricated and Sealed Shaft Bearings: Self-aligning, pillow-block type bearings rated for

L10 at 100,000 hours.

1. Extend grease fitting to accessible location outside of unit.

F. Direct Drives: Factory-mounted with 1.2 service factor based on fan motor.

G. Motors: Comply with requirements of Section 230513.

H. Speed Controller: Where indicated, provide solid-state, factory-mounted, variable speed controller for air flow balancing.

I. 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.

1. Disconnect Switch: Factory wired and mounted non-fusible type with thermal-

overload protection mounted to the fan housing, unless otherwise indicated. Wiring

shall be enclosed in aluminum conduit.

2.2. IN-LINE VANE AXIAL FANS

A. General Description: Inline vane axial fan with heavy gauge steel housing with steel

straightening vanes; inlet and outlet flanges; support bracket for floor, sidewall or ceiling mounting; rotor blades and hub shall be heat treated cast aluminum; adjustable pitch blades;

motor-side back-guard complying with OSHA standards; and direct-drive as scheduled.

B. Manufacturer: Greenheck VADS, Loren Cook VA-D Series, PennBarry TXD Series, or

Twin City TCVA Series.

PART 3 - EXECUTION

3.1. INSTALLATION

A. Install power ventilators level and plumb.

B. Equipment Mounting:

1. Comply with requirements for vibration isolation and seismic control devices specified in Section 230548.



C. Support suspended units from structure using threaded steel rods and spring hangers with

vertical-limit stops having a static deflection of 1 inch. Vibration-control devices are specified in Section 230548.

D. Install units with clearances for service and maintenance.

E. Label units according to requirements specified in Section 230553.

3.2. CONNECTIONS

A. Drawings indicate general arrangement of ducts and duct accessories. Make final duct

connections with flexible connectors. Flexible connectors are specified in Section 233300.

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

C. Ground equipment according to Division 26.

D. Connect wiring according to Division 26.


A. Perform the following tests and inspections:

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, align and adjust belts, and install belt guards.

5. Verify lubrication for bearings and other moving parts.

6. Remove and replace malfunctioning units and retest as specified above.

B. Test and adjust controls and safeties. Replace damaged and malfunctioning controls and equipment.


3.4. ADJUSTING

A. Comply with requirements in Section 230593 "Testing, Adjusting, and Balancing for HVAC"

for testing, adjusting, and balancing procedures.

B. Replace fan or motor as required to achieve design airflow.

C. Lubricate bearings.





& COMPUTER ROOM ELECTRICAL UPGRADES SECTION 260100-1

BASIC ELECTRICAL REQUIREMENTS

SECTION 260100 - BASIC ELECTRICAL REQUIREMENTS

PART 1 - GENERAL

1.1 RELATED DOCUMENTS

A. Drawings and general provisions of Contract, including General and Supplementary Conditions

and the Division 01010 General Conditions to the Contract, apply to this and the other sections

of Division 26.

B. All sections of Division 26 are interrelated. Where materials are required to complete work

associated with equipment in a specific section, but the materials are not specified within that

specific section, the requirements for those materials shall be as specified elsewhere in Division 26.

1.2 SUMMARY

A. This Section includes general administrative and procedural requirements for electrical

installations. The following administrative and procedural requirements are included in this Section to expand the requirements specified in the Division 01010 General Conditions to the

Contract:

1. Submittals. 2. Coordination drawings.

3. Record documents.

4. Maintenance manuals. 5. Rough-ins.

6. Electrical installations.

7. Cutting and patching.

8. Inspections

B. Related Sections: The following sections contain requirements that relate to this section:

1. Division 26 Section "Basic Electrical Materials and Methods," for materials and methods

common to the remainder of Division 26.

1.3 SUBMITTALS

A. General: Follow the procedures specified in Division 01010 General Conditions to the

Contract.

B. Specific Requirements to Electrical Product Data and Shop Drawing Submittals: 1. Submit newly prepared information, drawn to scale where applicable. Do not reproduce

Contract Documents or use Contract Document images in the preparation of submittals.

2. Any deviations from Contract Documents shall be clearly noted and highlighted, encircled, or otherwise visually identified.




3. Product Data and Shop Drawings are separate items and shall be submitted with separate

submittal numbers. Where both Product Data and Shop Drawings are required by the

same specification section (i.e. Fire alarm) both items shall be submitted for review at the same time. Product Data and Shop Drawings will be reviewed separately by Engineer,

but Engineer reserves the right to withhold review until both items have been received.

4. Submittal Documents Quality: Facsimile documents are prohibited. Submittals containing sheets copied from facsimile documents will be automatically Rejected and

returned to Contractor without review. Also submittals containing poor quality copies

will be automatically Rejected and returned to Contractor without review. 5. Submittal Document Binding: Use report covers with 3-hole, dual-prong tang fasteners

or slide fasteners. Velo- and comb bound documents are also acceptable. Use of 3-ring

binders is prohibited and will be automatically Rejected and returned to Contractor

without review.

C. Additional copies may be required by individual sections of these Specifications.

D. Substitution of Equivalent Products: Where individual sections require submittal for

substitution of manufacturers and products equivalent to those listed under Manufacturers paragraph, submittals shall be in accordance with that section. Engineer has final authority on

equivalence and acceptance.

1. Submittal of Substitution Request Forms are permitted by Prime Bidders only. Substitution Request Forms submitted by a vendor, distributor, or sub-contractor will not

be accepted or reviewed.

1.4 RECORD DOCUMENTS

A. Prepare record documents in accordance with the requirements in Division 01010 General Conditions to the Contract. In addition to the requirements specified in the Division 01010

General Conditions to the Contract, indicate installed conditions for:

1. Major raceway systems, size and location, for both exterior and interior; locations of control devices; distribution and branch electrical circuitry; and fuse and circuit breaker

size and arrangements.

2. Equipment locations (exposed and concealed), dimensioned from prominent building

lines. 3. Approved substitutions, Contract Modifications, and actual equipment and materials

installed.

1.5 OPERATION & MAINTENANCE MANUALS

A. Prepare maintenance manuals in accordance with the Division General Conditions to the

Contract In addition to the requirements specified in the Division General Conditions to the

Contract, include the following information for equipment items: 1. Product data for all equipment installed during construction. Product data shall be

manufacturer literature, cut-sheets, and/or catalogs and shall clearly depict manufacturer

and model number along with standard features and optional features where applicable.

2. Where available for installed equipment, Contractor shall include manufacturer’s published Installation and/or Owner’s manuals.




3. Description of function, normal operating characteristics and limitations, performance

curves, engineering data and tests, and complete nomenclature and commercial numbers

of replacement parts. 4. Maintenance procedures for routine preventative maintenance and troubleshooting;

disassembly, repair, and reassembly; aligning and adjusting instructions.

5. Warranty Information: Copies of documentation for all additional and secondary warranties shall be included.

1.6 DELIVERY, STORAGE, AND HANDLING

A. Deliver products to the project properly identified with names, model numbers, types, grades, compliance labels, and other information needed for identification.

PART 2 - PRODUCTS (Not Applicable)

PART 3 - EXECUTION

3.1 ROUGH-IN

A. Verify final locations for rough-ins with field measurements and with the requirements of the

actual equipment to be connected.

B. Refer to equipment specifications in Divisions 26 for rough-in requirements.

3.2 ELECTRICAL INSTALLATIONS

A. General: Sequence, coordinate, and integrate the various elements of electrical systems,

materials, and equipment. Comply with the following requirements: 1. Coordinate electrical systems, equipment, and materials installation with other building

components.

2. Verify all dimensions by field measurements.

3. Arrange for chases, slots, and openings in other building components during progress of construction, to allow for electrical installations.

4. Coordinate the installation of required supporting devices and sleeves to be set in

poured-in-place concrete and other structural components, as they are constructed. 5. Sequence, coordinate, and integrate installations of electrical materials and equipment for

efficient flow of the Work. Give particular attention to large equipment requiring

positioning prior to closing in the building.

6. Where mounting heights are not detailed or dimensioned, install systems, materials, and equipment to provide the maximum headroom possible.

7. Coordinate connection of electrical systems with exterior underground utilities and

services. Comply with requirements of governing regulations, franchised service companies, and controlling agencies. Provide required connection for each service.

8. Install systems, materials, and equipment to conform with approved submittal data,

including coordination drawings, to greatest extent possible. Conform to arrangements




indicated by the Contract Documents, recognizing that portions of the Work are shown

only in diagrammatic form. Where coordination requirements conflict with individual

system requirements, refer conflict to the Architect. 9. Install systems, materials, and equipment level and plumb, parallel and perpendicular to

other building systems and components, where installed exposed in finished spaces.

10. Install electrical equipment to facilitate servicing, maintenance, and repair or replacement of equipment components. As much as practical, connect equipment for ease of

disconnecting, with minimum of interference with other installations.

11. Install access panel or doors where units are concealed behind finished surfaces. 12. Install systems, materials, and equipment giving right-of-way priority to systems required

to be installed at a specified slope.

B. Basis of Design: Where specific systems and products are shown or specified with a Basis of

Design, the supporting work and appurtenances are shown and specified uniquely for the Basis of Design. Where systems and products other than the Basis of Design are installed, Contractor

shall adjust circuiting, raceway infrastructure, cable type, wire size, supporting means, backbox

type, and any other appurtenance as required for a complete, fully functional and operational system or product.

3.3 CUTTING AND PATCHING

A. General: Perform cutting and patching in accordance with the following requirements: 1. Perform cutting, fitting, and patching of electrical equipment and materials required to:

a. Remove and replace defective Work.

b. Remove and replace Work not conforming to requirements of the Contract

Documents. c. Upon written instructions from the Engineer, uncover and restore Work to provide

for Engineer observation of concealed Work.

2. Cut, remove, and legally dispose of selected electrical equipment, components, and materials as indicated, including but not limited to removal of electrical items indicated to

be removed and items made obsolete by the new Work.

3. Protect the structure, furnishings, finishes, and adjacent materials not indicated or

scheduled to be removed. 4. Protection of Installed Work: During cutting and patching operations, protect adjacent

installations. Provide and maintain temporary partitions or dust barriers adequate to

prevent the spread of dust and dirt to adjacent areas. 5. Patch existing finished surfaces and building components using new materials matching

existing materials and experienced Installers. Installers' qualifications refer to the

materials and methods required for the surface and building components being patched.

3.4 INSPECTIONS

A. Authority Having Jurisdiction: Notify and schedule all inspections, with a minimum of 10 days

notice in writing prior, to the Authority Having Jurisdiction.

END OF SECTION 260100


& COMPUTER ROOM ELECTRICAL UPGRADES SECTION 260500-1 BASIC ELECTRICAL MATERIALS AND METHODS

SECTION 260500 - BASIC ELECTRICAL MATERIALS AND METHODS

PART 1 - GENERAL


A. Drawings and general provisions of the Contract, including General and Supplementary

Conditions and Division 01010 General Conditions to the Contract, apply to this Section.

1.2 SUMMARY

A. This Section includes the following:

1. Electrical Equipment Installation.

2. Sleeves and sleeve seals for raceway and cable. 3. Firestopping.

4. Concrete equipment bases.

5. Cutting and patching for electrical construction. 6. Touchup painting.

1.3 QUALITY ASSURANCE

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. Comply with NFPA 70.

1.4 COORDINATION

A. Coordinate chases, slots, inserts, sleeves, and openings with general construction work and

arrange in building structure during progress of construction to facilitate the electrical

installations that follow.

B. Sequence, coordinate, and integrate installing electrical materials and equipment for efficient

flow of the Work. Coordinate installing large equipment requiring positioning before closing in

rooms.

C. Coordinate location of access panels and doors for electrical items that are concealed by finished surfaces.

PART 2 - PRODUCTS



2.1 SLEEVES FOR RACEWAYS AND CABLES

A. Steel Pipe Sleeves: ASTM A 53/A 53M, Type E, Grade B, Schedule 40, galvanized steel, plain ends.

2.2 CONCRETE BASES

A. Concrete: 3000-psi (20.7-MPa), 28-day compressive strength.

2.3 TOUCHUP PAINT

A. For Equipment: Equipment manufacturer's paint selected to match installed equipment finish.

B. Galvanized Surfaces: Zinc-rich paint recommended by item manufacturer.

PART 3 - EXECUTION

3.1 ELECTRICAL EQUIPMENT INSTALLATION

A. Headroom Maintenance: If mounting heights or other location criteria are not indicated,

arrange and install components and equipment to provide the maximum possible headroom.

B. Materials and Components: Install level, plumb, and parallel and perpendicular to other

building systems and components, unless otherwise indicated.

C. Equipment: Install to facilitate service, maintenance, and repair or replacement of components.

Connect for ease of disconnecting, with minimum interference with other installations. Provide any additional supporting means not provided by manufacturer to install equipment.

D. Right of Way: Give to raceways and piping systems installed at a required slope.

3.2 SLEEVE INSTALLATION FOR ELECTRICAL PENETRATIONS

A. Electrical penetrations occur when raceways, cables, or wireways, penetrate concrete slabs,

concrete or masonry walls, or fire-rated floor and wall assemblies.

B. Concrete Slabs and Walls: Install sleeves for penetrations in core-drilled holes.

C. Fire-Rated Assemblies: Install sleeves for penetrations of fire-rated floor and wall assemblies.

D. Sleeves for power raceway and cables: Steel, cut sleeves to length for mounting flush with both

surfaces of walls.

E. Extend sleeves installed in floors 2 inches (50 mm) above finished floor level.

F. Size pipe sleeves to provide 1/4-inch (6.4-mm) annular clear space between sleeve and raceway

or cable, unless indicated otherwise.



G. Seal space outside of sleeves with grout for penetrations of concrete and masonry

1. Promptly pack grout solidly between sleeve and wall so no voids remain. Tool exposed surfaces smooth; protect grout while curing.

H. Interior Penetrations of Non-Fire-Rated Walls and Floors: Seal annular space between sleeve

and raceway or cable, using joint sealant appropriate for size, depth, and location of joint.

I. Fire-Rated-Assembly Penetrations: Maintain indicated fire rating of walls, partitions, ceilings, and floors at raceway and cable penetrations. Install sleeves and seal raceway and cable

penetration sleeves with firestop materials.

3.3 FIRESTOPPING

A. Apply firestopping to cable and raceway penetrations of fire-rated floor and wall assemblies to

achieve fire-resistance rating of the assembly. Firestopping materials and installation

requirements are indicated on plans.

3.4 CONCRETE BASES

A. Construct concrete bases of dimensions indicated, but not less than 4 inches (100 mm) larger, in

both directions, than supported unit. Follow supported equipment manufacturer's anchorage

recommendations and setting templates for anchor-bolt and tie locations, unless otherwise indicated. Use 3000-psi (20.7-MPa), 28-day compressive-strength concrete.

3.5 CUTTING AND PATCHING

A. Cut, channel, chase, and drill floors, walls, partitions, ceilings, and other surfaces required to permit electrical installations. Perform cutting by skilled mechanics of trades involved.

B. Repair and refinish disturbed finish materials and other surfaces to match adjacent undisturbed

surfaces. Install new fireproofing where existing firestopping has been disturbed. Repair and refinish materials and other surfaces by skilled mechanics of trades involved.

3.6 REFINISHING AND TOUCHUP PAINTING

A. Refinish and touch up paint.

1. Clean damaged and disturbed areas and apply primer, intermediate, and finish coats to suit the degree of damage at each location.

2. Follow paint manufacturer's written instructions for surface preparation and for timing

and application of successive coats. 3. Repair damage to galvanized finishes with zinc-rich paint recommended by

manufacturer.

4. Repair damage to PVC or paint finishes with matching touchup coating recommended by

manufacturer.



3.7 CLEANING AND PROTECTION

A. On completion of installation, including outlets, fittings, and devices, inspect exposed finish. Remove burrs, dirt, paint spots, and construction debris.

B. Protect equipment and installations and maintain conditions to ensure that coatings, finishes,

and cabinets are without damage or deterioration at time of Substantial Completion.



& COMPUTER ROOM ELECTRICAL UPGRADES SECTION 260529-1 HANGERS AND SUPPORTS

SECTION 260529 - HANGERS AND SUPPORTS

PART 1 - GENERAL



Conditions to the Contract, apply to this Section.

1.2 SUMMARY

A. This Section includes the following:

1. Hangers and supports for electrical equipment and systems.

2. Construction requirements for concrete bases.

1.3 DEFINITIONS

A. EMT: Electrical metallic tubing.

B. IMC: Intermediate metal conduit.

C. RMC: Rigid metal conduit.

1.4 SUBMITTALS

A. Product Data: For anchors, supports, and slotted channel/strut systems.


A. Comply with NFPA 70.

1.6 COORDINATION

A. Coordinate size and location of concrete bases. Cast anchor-bolt inserts into bases.

B. Coordinate installation of roof curbs, equipment supports, and roof penetrations.



PART 2 - PRODUCTS

2.1 COATINGS

A. Coating: Supports, support hardware, and fasteners shall be protected with zinc coating or with

treatment of equivalent corrosion resistance using approved alternative treatment, finish, or

inherent material characteristic. Products for use outdoors shall be hot-dip galvanized.

2.2 MANUFACTURED SUPPORTING DEVICES

A. Raceway Supports: Clevis hangers, riser clamps, two-hole conduit straps, threaded C-clamps

with retainers, ceiling trapeze hangers, wall brackets, and spring steel clamps as described in

NECA 1 and NECA 101.

B. Fasteners: Types, materials, and construction features as follows:

1. Expansion Anchors: Carbon steel wedge or sleeve type for use in hardened portland

cement concrete, steel, or wood, with tension, shear, and pullout capacities appropriate for supported loads and building materials where used.

2. Powder-Driven Threaded Studs: Heat-treated steel for use in hardened portland cement

concrete, steel, or wood, with tension, shear, and pullout capacities appropriate for

supported loads and building materials where used. 3. Toggle Bolts: All steel springhead type.

4. Hanger Rods: Threaded steel.

C. Cable Supports for Vertical Conduit: Factory-fabricated assembly consisting of threaded body and insulating wedging plug for nonarmored electrical cables in riser conduits. Provide plugs

with number and size of conductor gripping holes as required to suit individual risers.

Construct body of malleable-iron casting with hot-dip galvanized finish.

D. U-Channel Systems: Comply with MFMA-4, factory-fabricated components for field assembly;

16-gage steel channels, with 9/16-inch-diameter holes, at a minimum of 8 inches on center, in

top surface. Provide fittings and accessories that mate and match with U-channel and are of the

same manufacture.

2.3 FABRICATED SUPPORTING DEVICES

A. General: Shop- or field-fabricated supports or manufactured supports assembled from

U-channel components.

B. Steel Brackets: Fabricated of angles, channels, and other standard structural shapes. Connect

with welds and machine bolts to form rigid supports.



PART 3 - EXECUTION

3.1 INSTALLATION

A. Install supporting devices to fasten electrical components securely and permanently in

accordance with NEC requirements.

B. Coordinate with the building structural system and with other electrical installation.

C. Raceway Supports: Comply with the NEC and the following requirements:

1. Conform to manufacturer's recommendations for selection and installation of supports.

2. Strength of each support shall be adequate to carry present and future load multiplied by

a safety factor of at least four. Where this determination results in a safety allowance of less than 200 lbs, provide additional strength until there is a minimum of 200 lbs safety

allowance in the strength of each support.

3. Install individual and multiple (trapeze) raceway hangers and riser clamps as necessary to support raceways. Provide U-bolts, clamps, attachments, and other hardware necessary

for hanger assembly and for securing hanger rods and conduits.

4. Support parallel runs of horizontal raceways together on trapeze-type hangers.

5. Support individual horizontal raceways by separate pipe hangers. Spring steel fasteners may be used in lieu of hangers only for 1-1/2-inch and smaller raceways serving lighting

and receptacle branch circuits above suspended ceilings only. For hanger rods with

spring steel fasteners, use 1/4-inch-diameter or larger threaded steel. Use spring steel fasteners that are specifically designed for supporting single conduits or tubing. Spring

steel fasteners are not permitted for use where exposed.

6. Support raceways installed on interior of exterior building walls a minimum of ¼ inch from wall surface using “clamp-back” struts.

7. Space supports for raceways in accordance with Table I of this section. Space supports

for raceway types not covered by the above in accordance with NEC.

8. Support exposed and concealed raceway within 1 foot of an unsupported box and access fittings. In horizontal runs, support at the box and access fittings may be omitted where

box or access fittings are independently supported and raceway terminals are not made

with chase nipples or threadless box connectors. 9. In vertical runs, arrange support so the load produced by the weight of the raceway and

the enclosed conductors is carried entirely by the conduit supports with no weight load on

raceway terminals. Spring steel fasteners are not permitted for use in vertical runs.

Support individual vertical runs using two-hole straps. Support parallel runs of vertical raceway together on channel using bolted clamps.

D. Miscellaneous Supports: Support miscellaneous electrical components as required to produce

the same structural safety factors as specified for raceway supports. Install metal channel racks for mounting cabinets, panelboards, disconnects, control enclosures, pull boxes, junction boxes,

transformers, and other devices.

E. In open overhead spaces, cast boxes threaded to raceways need not be supported separately except where used for fixture support; support sheet metal boxes directly from the building

structure or by bar hangers. Where bar hangers are used, attach the bar to raceways on opposite

sides of the box and support the raceway with an approved type of fastener not more than 24

inches from the box.



F. Fastening: Unless otherwise indicated, fasten electrical items and their supporting hardware

securely to the building structure, including but not limited to conduits, raceways, cables, cable trays, busways, cabinets, panelboards, transformers, boxes, disconnect switches, and control

components in accordance with the following:

1. Fasten by means of wood screws or screw-type nails on wood, toggle bolts on hollow

masonry units, concrete inserts or expansion bolts on concrete or solid masonry, and machine screws, welded threaded studs, or spring-tension clamps on steel. Threaded

studs driven by a powder charge and provided with lock washers and nuts may be used

instead of expansion bolts and machine or wood screws. Do not weld conduit, pipe straps, or items other than threaded studs to steel structures. In partitions of light steel

construction, use sheet metal screws.

2. Holes cut to depth of more than 1-1/2 inches in reinforced concrete beams or to depth of more than 3/4 inch in concrete shall not cut the main reinforcing bars. Fill holes that are

not used.

3. Ensure that the load applied to any fastener does not exceed 25 percent of the proof test

load. Use vibration- and shock- resistant fasteners for attachments to concrete slabs.



3.2 TABLE I: SPACING FOR RACEWAY SUPPORTS

HORIZONTAL RUNS

Raceway No. of RMC &

Size Conductors IMC EMT OFR

(Inches) in Run Location (1) (1) (1) 1/2,3/4 1 or 2 Flat ceiling or wall. 5 5 5

1/2,3/4 1 or 2 Where it is difficult 7 7 5

to provide supports except at intervals fixed

by the building construction.

1/2,3/4 3 or more Any location. 7 7 ... 1/2-1 3 or more Any location.

1 & larger 1 or 2 Flat ceiling or wall. 6 6 ...

1 & larger 1 or 2 Where it is difficult to 10 10 5

provide supports except at intervals fixed by the

building construction.

1 & larger 3 or more Any location. 10 10 ... Any .... Concealed. 10 10 ...

VERTICAL RUNS No. of RMC &

Raceway Size Conductors IMC EMT OFR

(Inches) in Run Location (1,2) (1) (1)

1/2,3/4 .... Exposed. 7 7 ... 1,1-1/4 .... Exposed. 8 8 ...

1-1/2 and larger .... Exposed. 10 10 ...

Up to 2 .... Shaftway. 14 10 ... 2-1/2 .... Shaftway. 16 10 ...

3 & larger .... Shaftway. 20 10 ...

Any .... Concealed. 10 10 5

NOTES:

(1) Support spacing listed in feet. Maximum spacing of supports 10 feet. (2) Maximum spacings for IMC above apply to straight runs only.

Otherwise the maximums for EMT apply.

Abbreviations: EMT Electrical metallic tubing.

IMC Intermediate metallic conduit.

RMC Rigid metallic conduit. OFR Optical Fiber Raceway.





& COMPUTER ROOM ELECTRICAL UPGRADES SECTION 260533-1 RACEWAY AND BOXES

SECTION 260533 - RACEWAY AND BOXES

PART 1 - GENERAL



Conditions to the Contract, apply to this Section.

1.2 SUMMARY

A. This Section includes interior and exterior raceways, fittings, boxes, enclosures, and cabinets for

electrical wiring.

1.3 DEFINITIONS

A. EMT: Electrical metallic tubing.

B. FMC: Flexible metal conduit.

C. IMC: Intermediate metal conduit.

D. LFMC: Liquidtight flexible metal conduit.

1.4 SUBMITTALS

A. Product Data: For raceways, wireways and fittings, floor boxes, hinged-cover enclosures, and

cabinets.


A. Electrical Components, Devices, and Accessories: Listed and labeled as defined in NFPA 70,



PART 2 - PRODUCTS

2.1 METAL CONDUIT AND TUBING

A. Available Manufacturers: Subject to compliance with requirements, manufacturers offering

products that may be incorporated into the Work include, but are not limited to, the following:



1. Allied Tube & Conduit; a Tyco International Ltd. Co.

2. O-Z Gedney; a unit of General Signal. 3. Wheatland Tube Company.

B. Rigid Steel Conduit: ANSI C80.1.

C. IMC: ANSI C80.6.

D. EMT: ANSI C80.3.

E. LFMC: Flexible steel conduit with PVC jacket.

F. Fittings for Conduit (Including all Types and Flexible and Liquidtight), EMT, and Cable:

NEMA FB 1; listed for type and size raceway with which used, and for application and environment in which installed.

1. Conduit Fittings for Hazardous (Classified) Locations: Comply with UL 886.

2. Fittings for EMT: Plated-steel hexagonal type. Cast, pot metal,or crimp type fittings are not acceptable. Steel compression for conduit below 2 ½”. Steel set-screw for conduit 2

½” and larger.

3. Box connectors shall be insulated throat type.

G. Joint Compound for Rigid Steel Conduit or IMC: Listed for use in cable connector assemblies, and compounded for use to lubricate and protect threaded raceway joints from corrosion and

enhance their conductivity.

2.2 METAL WIREWAYS



1. Cooper B-Line, Inc. 2. Hoffman.

3. Square D; Schneider Electric.

4. Austin Electrical Enclosures

B. Description: Sheet metal sized and shaped as indicated, NEMA 250, Type 1, unless otherwise indicated.

C. Fittings and Accessories: Include couplings, offsets, elbows, expansion joints, adapters, hold-

down straps, end caps, and other fittings to match and mate with wireways as required for complete system.

D. Wireway Covers: Hinged type.

E. Finish: Manufacturer's standard enamel finish.

2.3 BOXES, ENCLOSURES, AND CABINETS



1. Cooper Crouse-Hinds; Div. of Cooper Industries, Inc.



2. EGS/Appleton Electric.

3. Hoffman. 4. RACO; a Hubbell Company.

5. Thomas & Betts Corporation.

B. Sheet Metal Outlet and Device Boxes: NEMA OS 1.

C. Cast-Metal Outlet and Device Boxes: NEMA FB 1, ferrous alloy, Type FD, with gasketed cover.

D. Hinged-Cover Enclosures: NEMA 250, Type 1, with continuous-hinge cover with flush latch,

unless otherwise indicated. 1. Metal Enclosures: Steel, finished inside and out with manufacturer's standard enamel.

E. Cabinets:

1. NEMA 250, Type 1, galvanized-steel box with removable interior panel and removable front, finished inside and out with manufacturer's standard enamel.

2. Hinged door in front cover with flush latch and concealed hinge.

3. Key latch to match panelboards.

4. Metal barriers to separate wiring of different systems and voltage. 5. Accessory feet where required for freestanding equipment.

PART 3 - EXECUTION

3.1 RACEWAY APPLICATION

A. Outdoors: Apply raceway products as specified below, unless otherwise indicated:

1. Exposed Conduit: Rigid steel conduit.

2. Connection to Vibrating Equipment (Including Transformers and Hydraulic, Pneumatic, Electric Solenoid, or Motor-Driven Equipment): LFMC.

3. Boxes and Enclosures, Aboveground: NEMA 250, Type 4.

B. Indoors: Apply raceway products as specified below, unless otherwise indicated:

1. Exposed, boiler room, UPS room and radio equipment room: EMT. 2. Exposed in G Level parking area: Rigid steel conduit.

a. HVAC Controls Raceway: EMT raceway containing HVAC controls wiring shall

have a factory applied yellow finish. 3. Concealed in Ceilings and Interior Walls and Partitions: EMT.

4. Connection to Vibrating Equipment (Including Transformers and Hydraulic, Pneumatic,

Electric Solenoid, or Motor-Driven Equipment): LFMC

5. Damp or Wet Locations: Rigid steel conduit. 6. Boxes and Enclosures: NEMA 250, Type 1, except use NEMA 250, Type 4, stainless

steel in damp or wet locations.

C. Raceway Fittings: Compatible with raceways and suitable for use and location. 1. Rigid and Intermediate Steel Conduit: Use threaded rigid steel conduit fittings, unless

otherwise indicated.



3.2 INSTALLATION

A. Install raceways, boxes, enclosures, and cabinets as indicated, according to manufacturer's written instructions.

B. Minimum Raceway Size:

1. Interior: 3/4-inch trade size.

C. Conceal conduit and EMT, unless otherwise indicated, within finished ceilings, and floors.

D. Keep raceways at least 6 inches (150 mm) away from parallel runs of flues and steam or hot-

water pipes. Install horizontal raceway runs above water and steam piping.

E. Install raceways level and square and at proper elevations. Provide adequate headroom.

F. Complete raceway installation before starting conductor installation.

G. Support raceways as specified in Division 26 Section "Supporting Devices."

H. Use temporary closures to prevent foreign matter from entering raceways.

I. Make bends and offsets so ID is not reduced. Keep legs of bends in the same plane and straight

legs of offsets parallel, unless otherwise indicated.

J. Use raceway fittings compatible with raceways and suitable for use and location. For

intermediate steel conduit, use threaded rigid steel conduit fittings, unless otherwise indicated.

K. Run concealed raceways, with a minimum of bends, in the shortest practical distance

considering the type of building construction and obstructions, unless otherwise indicated.

L. Install exposed raceways parallel to or at right angles to nearby surfaces or structural members, and follow the surface contours as much as practical.

1. Run parallel or banked raceways together, on common supports where practical.

2. Make bends in parallel or banked runs from same centerline to make bends parallel. Use factory elbows only where elbows can be installed parallel; otherwise, provide field

bends for parallel raceways.

M. Join raceways with fittings designed and approved for the purpose and make joints tight.

1. Make raceway terminations tight. Use bonding bushings or wedges at connections subject to vibration. Use bonding jumpers where joints cannot be made tight.

2. Use insulating bushings to protect conductors.

N. Terminations: Where raceways are terminated with locknuts and bushings, align raceways to

enter squarely and install locknuts with dished part against the box. Where terminations are not

secure with 1 locknut, use 2 locknuts: 1 inside and 1 outside the box.

1. Where concentric, eccentric, or over-sized knock outs are encountered, a grounding-type insulated bushing shall be provided.

O. Where raceways are terminated with threaded hubs, screw raceways or fittings tightly into the

hub so the end bears against the wire protection shoulder. Where chase nipples are used, align



raceways so the coupling is square to the box and tighten the chase nipple so no threads are

exposed.

P. Install pull wires in empty raceways. Use No. 14 AWG zinc-coated steel or monofilament

plastic line with not less than 200-lb (90-kg) tensile strength. Leave at least 12 inches (300 mm)

of slack at each end of the pull wire.

Q. Flexible Connections: Use maximum of 6 feet (1830 mm) of flexible conduit for recessed and semirecessed lighting fixtures; Use liquidtight flexible conduit for all equipment including

equipment subject to vibration, noise transmission, or movement; and for all motors. Install

separate ground conductor across flexible connections.

R. Install hinged-cover enclosures and cabinets plumb. Support at each corner.

3.3 FIRESTOPPING

A. Apply firestopping to electrical penetrations of fire-rated floor and wall assemblies to restore original fire-resistance rating of assembly.

3.4 PROTECTION

A. Provide final protection and maintain conditions that ensure coatings, finishes, and cabinets are

without damage or deterioration at time of Substantial Completion. 1. Repair damage to galvanized finishes with zinc-rich paint recommended by

manufacturer.





& COMPUTER ROOM ELECTRICAL UPGRADES SECTION 260553-1 IDENTIFICATION FOR ELECTRICAL SYSTEMS

SECTION 260553 - IDENTIFICATION FOR ELECTRICAL SYSTEMS

PART 1 - GENERAL




1.2 SUMMARY

A. This Section includes electrical identification materials and devices required to comply with

ANSI C2, NFPA 70, OSHA standards, and authorities having jurisdiction.

1.3 SUBMITTALS

A. Product Data: For each electrical identification product indicated.


A. Comply with ANSI C2.


C. Comply with ANSI A13.1 and NFPA 70 for color-coding.

D. Comply with ANSI Z535.4 for safety signs and labels.

E. Adhesive-attached labeling materials, including label stocks, laminating adhesives, and inks used by label printers, shall comply with UL 969.

PART 2 - PRODUCTS

2.1 RACEWAY AND CABLE LABELS

A. Colored Adhesive Tape: Self-adhesive vinyl tape not less than 3 mils thick by 1 to 2 inches

wide (0.08 mm thick by 25 to 51 mm wide).

B. Tape Markers: Vinyl or vinyl-cloth, self-adhesive, wraparound type with preprinted numbers and letters.

C. Plasticized Card-Stock Tags: Vinyl cloth with preprinted and field-printed legends. Orange

background, unless otherwise indicated, with eyelet for fastener.



2.2 NAMEPLATES AND SIGNS

A. Safety Signs: Comply with 29 CFR, Chapter XVII, Part 1910.145.

B. Engraved Plastic Nameplates and Signs: Engraving stock, melamine plastic laminate, minimum

1/16 inch (1.6 mm) thick for signs up to 20 sq. in. (129 sq. cm) and 1/8 inch (3.2 mm) thick for

larger sizes.

1. Punched or drilled for mechanical fasteners.

C. Fasteners for Nameplates and Signs: Self-tapping, stainless-steel screws or No. 10/32,

stainless-steel machine screws with nuts and flat and lock washers.

2.3 MISCELLANEOUS IDENTIFICATION PRODUCTS

A. Cable Ties: Fungus-inert, self-extinguishing, one-piece, self-locking, Type 6/6 nylon cable ties.

1. Minimum Width: 3/16 inch (5 mm).

2. Tensile Strength: 50 lb (22.3 kg) minimum. 3. Temperature Range: Minus 40 to plus 185 deg F (Minus 40 to plus 85 deg C).

4. Color: According to color-coding.

B. Paint: Formulated for the type of surface and intended use.

1. Primer for Galvanized Metal: Single-component acrylic vehicle formulated for galvanized surfaces.

2. Primer for Concrete Masonry Units: Heavy-duty-resin block filler.

3. Primer for Concrete: Clear, alkali-resistant, binder-type sealer. 4. Enamel: Silicone-alkyd or alkyd urethane as recommended by primer manufacturer.

PART 3 - EXECUTION

3.1 INSTALLATION

A. Identification Materials and Devices: Install at locations for most convenient viewing without

interference with operation and maintenance of equipment.

B. Lettering, Colors, and Graphics: Coordinate names, abbreviations, colors, and other

designations with corresponding designations in the Contract Documents or with those required by codes and standards. Use consistent designations throughout Project.

1. General 120/208V Equipment: Blue label with white core.

2. General 277/480V Equipment: Black label with white core. 3. Emergency Generation Equipment: Green label with white core.

C. Sequence of Work: If identification is applied to surfaces that require finish, install

identification after completing finish work.

D. Self-Adhesive Identification Products: Clean surfaces before applying.

E. Install painted identification according to manufacturer's written instructions and as follows:

1. Clean surfaces of dust, loose material, and oily films before painting.

2. Prime surfaces using type of primer specified for surface.



3. Apply one intermediate and one finish coat of enamel.

F. Color Banding Raceways and Exposed Cables: Band exposed and accessible raceways of the systems listed below:

1. Bands: Pretensioned, wraparound plastic sleeves; colored adhesive tape; or a

combination of both. Make each color band 2 inches (51 mm) wide, completely

encircling conduit, and place adjacent bands of two-color markings in contact, side by side.

2. Band Locations: At changes in direction, at penetrations of walls and floors, at 50-foot

(15-m) maximum intervals in straight runs, and at 25-foot (7.6-m) maximum intervals in congested areas. Also provide color banding at outlet box stub-ups.

3. Apply the following colors to the systems listed below:

a. Emergency Systems: Green. b. Stand-by Systems: Green.

4. Color code cover of raceway junction boxes following the colors listed above.

5. Spare raceway for future use shall be identified as such and shall indicate where raceway

originates and terminates on each end.

G. Caution Labels for Indoor Boxes and Enclosures for Power and Lighting: Install pressure-

sensitive, self-adhesive labels identifying system voltage with black letters on orange

background. Install on exterior of door or cover.

H. Circuit Identification Labels on Outlet Boxes, Junction Boxes and Pull Boxes: Install labels

externally.

1. Outlet boxes (receptacles and switches) and exposed junction boxes: Pressure-sensitive, self-adhesive plastic label on faceplate. Use clear label with black letters.

2. Concealed junction and pull boxes: Neat handwritten label using permanent black

marker.

3. Labeling Legend: Permanent, waterproof listing of panel and circuit number or equivalent.

4. Future Use Circuits: Circuits for future use shall be identified as such and list panel and

circuit number of source.

I. Secondary Service, Feeder, and Branch-Circuit Conductors: Color-code throughout the

secondary electrical system.

1. Color-code 208/120-V system as follows:

a. Phase A: Black. b. Phase B: Red.

c. Phase C: Blue.

d. Neutral: White. e. Ground: Green.

2. Color-code 480/277-V system as follows:

a. Phase A: Brown. b. Phase B: Orange.

c. Phase C: Yellow.

d. Neutral: Gray.

e. Ground: Green.

3. Factory apply color the entire length of conductors, except the following field-applied,

color-coding methods may be used instead of factory-coded wire for sizes larger than No. 10 AWG:



a. Colored, pressure-sensitive plastic tape in half-lapped turns for a distance of 6

inches (150 mm) from terminal points and in boxes where splices or taps are made. Apply last two turns of tape with no tension to prevent possible unwinding. Use 1-

inch- (25-mm-) wide tape in colors specified. Adjust tape bands to avoid

obscuring cable identification markings.

b. Colored cable ties applied in groups of three ties of specified color to each wire at each terminal or splice point starting 3 inches (76 mm) from the terminal and

spaced 3 inches (76 mm) apart. Apply with a special tool or pliers, tighten to a

snug fit, and cut off excess length.

J. Apply identification to conductors as follows:

1. Conductors to Be Extended in the Future: Indicate source and circuit numbers.

2. Multiple Power or Lighting Circuits in the Same Enclosure: Identify each conductor with source, voltage, circuit number, and phase. Use color-coding to identify circuits' voltage

and phase.

3. Multiple Control and Communication Circuits in the Same Enclosure: Identify each

conductor by its system and circuit designation. Use a consistent system of tags, color-coding, or cable marking tape.

K. Equipment Identification Labels: Engraved plastic laminate. Install on each unit of equipment,

including central or master unit of each system. Locate label on exterior of any enclosure. This includes all new equipment unless units are specified with their own self-explanatory

identification. Unless otherwise indicated, provide three lines of text with 1/4-inch high

lettering on 1-1/2-inch high label; where four lines of text are required, use labels 2 inches high. Use surface and core colors as listed in Part 2 above. Provide labels for all electrical equipment

listed below. In general, all labels shall include riser diagram ID, amperage, voltage, number of

phases/poles, and equipment served from (source). (Provide sample to engineer for approval

prior to installation on equipment.) Provide additional information as listed below: 1. Panelboards: MCB/MLO.

2. Disconnect switches/motor starters: equipment served by.

a. Provide label for all disconnects/starters provide by Division 23, 24 or 26. 3. Enclosed circuit breakers: equipment served by.

a. Provide label for all enclosed circuit breakers provide by Division 23, 24 or 26.

4. Transformers: equipment served by.



& COMPUTER ROOM ELECTRICAL UPGRADES SECTION 262416-1 PANELBOARDS

SECTION 262416 - PANELBOARDS

PART 1 - GENERAL




1.2 SUMMARY

A. Section Includes:

1. Distribution panelboards.

2. Lighting and appliance branch-circuit panelboards.

1.3 DEFINITIONS

A. SVR: Suppressed voltage rating.

B. TVSS: Transient voltage surge suppressor.

1.4 SUBMITTALS

A. Product Data: For each type of panelboard, switching and overcurrent protective device,

transient voltage suppression device, accessory, and component indicated. Include dimensions

and manufacturers' technical data on features, performance, electrical characteristics, ratings, and finishes.

B. Shop Drawings: For each panelboard and related equipment.

1. Include dimensioned plans, elevations, sections, and details. Show tabulations of installed devices, equipment features, and ratings.

2. Detail enclosure types and details for types other than NEMA 250, Type 1.

3. Detail bus configuration, current, and voltage ratings. 4. Short-circuit current rating of panelboards and overcurrent protective devices.

5. Detail features, characteristics, ratings, and factory settings of individual overcurrent protective

devices and auxiliary components.

C. Field Quality-Control Reports: 1. Test procedures used.

2. Test results that comply with requirements.

3. Results of failed tests and corrective action taken to achieve test results that comply with requirements.



D. Panelboard Schedules: For installation in panelboards. Room names and numbers shall match

the final signage at the site. Submit final versions prior to installation in panelboard.

E. Operation and Maintenance Data: For panelboards and components to include in emergency,

operation, and maintenance manuals. In addition to items specified in Division 01010 General

Conditions to the Contract, include the following:

1. Manufacturer's written instructions for testing and adjusting overcurrent protective devices.


A. Source Limitations: Obtain panelboards, overcurrent protective devices, components, and

accessories from single source from single manufacturer.

B. Product Selection for Restricted Space: Drawings indicate maximum dimensions for

panelboards including clearances between panelboards and adjacent surfaces and other items.

Comply with indicated maximum dimensions.

C. 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.

D. Comply with NEMA PB 1.

E. Comply with NFPA 70.


A. Handle and prepare panelboards for installation according to NEMA PB 1.

1.7 PROJECT CONDITIONS

A. Environmental Limitations:

1. Do not deliver or install panelboards until spaces are enclosed and weathertight, wet work in spaces

is complete and dry, work above panelboards is complete, and temporary HVAC system is operating and maintaining ambient temperature and humidity conditions at occupancy levels during

the remainder of the construction period.

1.8 COORDINATION

A. Coordinate layout and installation of panelboards and components with other construction that penetrates walls or is supported by them, including electrical and other types of equipment,

raceways, piping, encumbrances to workspace clearance requirements, and adjacent surfaces.

Maintain required workspace clearances and required clearances for equipment access doors and panels.



PART 2 - PRODUCTS

2.1 MANUFACTURERS

A. Available Manufacturers: Subject to compliance with requirements, available manufacturers

offering products that may be incorporated into the Work include, the following to match the

majority of exiting panels within the building:

1. Siemens Energy & Automation, Inc. 2. Square D; a brand of Schneider Electric.

2.2 GENERAL REQUIREMENTS FOR PANELBOARDS

A. Enclosures: Flush- and surface-mounted cabinets as noted on schedules.

1. Rated for environmental conditions at installed location.

a. Indoor Dry and Clean Locations: NEMA 250, Type 1.

b. Outdoor Locations: NEMA 250, Type 4. c. Kitchen Areas: NEMA 250, Type 4X stainless steel.

d. Other Wet or Damp Indoor Locations: NEMA 250, Type 4.

2. Front Cover: For surface-mounted fronts, match box dimensions; for flush-mounted fronts,

overlap box.

a. Flush Mounted Panelboards: Standard front cover. Secured to box with concealed

trim clamps. Match box dimensions.

b. Surface Mounted Panelboards: Entire front trim hinged to box. Continuous piano hinge. Provide standard door with front trim.

3. Gutter Extension and Barrier: Same gage and finish as panelboard enclosure; integral with

enclosure body. Arrange to isolate individual panel sections. 4. Finishes:

a. Panels and Trim: Steel, factory finished immediately after cleaning and pretreating

with manufacturer's standard two-coat, baked-on finish consisting of prime coat

and thermosetting topcoat. b. Back Boxes: Galvanized steel.

5. Directory Card: Inside panelboard door, mounted in metal frame with transparent protective cover.

6. Main Overcurrent Protective Devices: Molded-case circuit breakers. a. Center Mounted Main: Branch mounted main breakers are not allowed.

7. Branch Overcurrent Protective Devices: Molded-case circuit breakers.

a. Center mounted branch devices and sub-feed branch devices are not allowed.

B. Incoming Mains Location: Top and bottom.

C. Phase, Neutral, and Ground Buses: Hard-drawn copper, 98 percent conductivity

1. Neutral Bus: Neutral bus rated 100 percent of phase bus.



2. Equipment Ground Bus: Adequate for feeder and branch-circuit equipment grounding conductors;

bonded to box.

D. Main and Neutral Lugs: Mechanical type suitable for use with conductor material.

E. Feed-through Lugs: Not acceptable.

F. Future Devices: Mounting brackets, bus connections, filler plates, and necessary appurtenances

required for future installation of devices. Future devices indicated as “SPACE” on drawings.

G. Panelboard Short-Circuit Current Rating: Fully rated to interrupt symmetrical short-circuit

current available at terminals. Series rating of equipment is not acceptable.

2.3 DISTRIBUTION PANELBOARDS

A. Panelboards: NEMA PB 1, power and feeder distribution type.

B. Doors: Secured with vault-type latch with tumbler lock; keyed alike.

1. For doors more than 36 inches (914 mm) high, provide two latches, keyed alike.

C. Mains: Circuit breaker.

D. Branch Overcurrent Protective Devices for Circuit-Breaker Frame Sizes 125 A and Smaller:

Bolt-on circuit breakers.

E. Branch Overcurrent Protective Devices for Circuit-Breaker Frame Sizes Larger Than 125 A: Bolt-on circuit breakers; plug-in circuit breakers where individual positive-locking device

requires mechanical release for removal.

2.4 LIGHTING AND APPLIANCE BRANCH-CIRCUIT PANELBOARDS

A. Panelboards: NEMA PB 1, lighting and appliance branch-circuit type.

B. Mains: Circuit breaker, unless otherwise noted on drawings.

C. Branch Overcurrent Protective Devices: Bolt-on circuit breakers, replaceable without disturbing adjacent units.

D. Doors: Concealed hinges; secured with flush latch with tumbler lock; keyed alike.

2.5 DISCONNECTING AND OVERCURRENT PROTECTIVE DEVICES

A. Molded-Case Circuit Breaker (MCCB): Comply with UL 489, with full interrupting capacity to meet available fault currents.

1. Thermal-Magnetic Circuit Breakers: Inverse time-current element for low-level overloads, and

instantaneous magnetic trip element for short circuits. Field adjustable instantaneous trip setting for circuit-breaker frame sizes 250 A to 600A.



2. Molded-Case Circuit-Breaker (MCCB) Features and Accessories:

a. Standard frame sizes, trip ratings, and number of poles.

b. Lugs: Mechanical style, suitable for number, size, trip ratings, and conductor

materials.

c. Undervoltage Trip: Set to operate at 35 to 75 percent of rated voltage without intentional time delay.

d. Handle Clamp: Loose attachment, for holding circuit-breaker handle in on

position.

PART 3 - EXECUTION

3.1 EXAMINATION

A. Receive, inspect, handle, and store panelboards according to NEMA PB 1.1.

B. Examine panelboards before installation. Reject panelboards that are damaged or rusted or have

been subjected to water saturation.

C. Examine elements and surfaces to receive panelboards for compliance with installation

tolerances and other conditions affecting performance of the Work.

D. Proceed with installation only after unsatisfactory conditions have been corrected.

3.2 INSTALLATION

A. Install panelboards and accessories according to NEMA PB 1.1.

B. Temporary Lifting Provisions: Remove temporary lifting eyes, channels, and brackets and

temporary blocking of moving parts from panelboards.

C. Mount top of trim 90 inches (2286 mm) above finished floor unless otherwise indicated.

D. Mount panelboard cabinet plumb and rigid without distortion of box. Mount recessed

panelboards with fronts uniformly flush with wall finish and mating with back box.

E. Install filler plates in unused spaces.

F. Stub eight 3/4-inch empty conduits from panelboard into accessible ceiling space or space designated to be ceiling space in the future. Stub four 3/4-inch empty conduits into raised floor

space or below slab not on grade.

G. Arrange conductors in gutters into groups and bundle and wrap with wire ties.

H. Comply with NECA 1.



3.3 IDENTIFICATION

A. Identify field-installed conductors, interconnecting wiring, and components; provide warning signs complying with Division 26 Section "Identification for Electrical Systems."

B. Create a directory to indicate installed circuit loads; incorporate Owner's final room

designations. Obtain approval before installing. Use a computer or typewriter to create

directory; handwritten directories are not acceptable.

C. Panelboard Nameplates: Label each panelboard with a nameplate complying with requirements

for identification specified in Division 26 Section "Identification for Electrical Systems."

D. Device Nameplates: Label each branch circuit device in distribution panelboards with a nameplate complying with requirements for identification specified in Division 26 Section

"Identification for Electrical Systems."

3.4 FIELD QUALITY CONTROL

A. Tests and Inspections:

1. Perform each visual and mechanical inspection and electrical test stated in NETA Acceptance

Testing Specification. Issue report indicating compliance with test parameters.

2. Correct malfunctioning units on-site, where possible, and retest to demonstrate compliance; otherwise, replace with new units and retest.

B. Panelboards will be considered defective if they do not pass tests and inspections.

C. Prepare test and inspection reports. Include notation of deficiencies detected, remedial action taken, and observations after remedial action.

3.5 ADJUSTING

A. Set field-adjustable circuit-breaker trip ranges. Unless otherwise noted, trip settings shall mimic trip characteristics for thermal magnetic circuit-breakers of similar trip rating.

B. Load Balancing: After Substantial Completion, but not more than 60 days after Final

Acceptance, measure load balancing and make circuit changes.

1. Measure as directed during period of normal system loading. 2. Perform load-balancing circuit changes outside normal occupancy/working schedule of the facility

and at time directed. Avoid disrupting critical 24-hour services such as fax machines and on-line

data processing, computing, transmitting, and receiving equipment. 3. After circuit changes, recheck loads during normal load period. Record all load readings before

and after changes and submit test records.

4. Tolerance: Difference exceeding 20 percent between phase loads, within a panelboard, is not

acceptable. Rebalance and recheck as necessary to meet this minimum requirement.



& COMPUTER ROOM ELECTRICAL UPGRADES SECTION 263213-1 NATURAL GAS PACKAGED ENGINE GENERATORS

SECTION 263213 – NATURAL GAS PACKAGED ENGINE GENERATOR

PART 1 - GENERAL



Conditions and Division 1 Specification Sections, apply to this Section.

1.2 SUMMARY

A. Brief Description: Provide 100 kW/125 Kva, Natural gas rated, 277/480v, three phase , four

wire packaged natural gas-engine generator set with permanent magnet excitation generator.

Provide generator with sound attenuated outdoor enclosure. Generator shall be installed and tested per NFPA 110 for emergency systems.

B. This Section includes packaged natural gas-engine generator sets with the following features

and accessories: 1.

2. Engine-generator set.

3. Sound Attenuated Outdoor enclosure.

4. Starting Battery 5. Battery charger.

6. Muffler.

7. Remote annunciator.

1.3 DEFINITIONS

A. Operational Bandwidth: The total variation from the lowest to highest value of a parameter

over the range of conditions indicated, expressed as a percentage of the nominal value of the parameter.

B. Steady-State Voltage Modulation: The uniform cyclical variation of voltage within the

operational bandwidth, expressed in Hertz or cycles per second.

1.4 SUBMITTALS

A. Product Data: The Contractor shall submit all data necessary to evaluate equipment

compliance. Data submittal shall include, at a minimum, the manufacturer; model and catalog

numbers, dimensions, construction materials, operating and performance characteristics, controls, finish and other pertinent information.

1.

2. Thermal damage curve for generator

3. Sound Attenuated Enclosure: Provide manufacturer’s standard product data which demonstrates compliance with specified sound pressure levels.



4. Engine Emissions Data: Provide manufacturer’s standard product data or letter on

manufacturer’s letterhead describing emissions levels as required below.

B. Shop Drawings: Detail equipment assemblies and indicate dimensions, weights, loads, required

clearances, method of field assembly, components, and location and size of each field

connection.

1. 2. Dimensioned outline plan and elevation drawings of engine-generator set and other

components specified.

3. Circuit breaker layout shall be shown in shop drawings.

C. Qualification Data: For Installer and manufacturer. See below.

D. Test Reports:

1. 2. Report of factory test on prototype units similar to unit to be shipped for this Project,

showing evidence of compliance with specified requirements.

3. Report of sound generation.

4. Report of exhaust emissions showing compliance with applicable regulations. 5. Field quality-control test reports.

E. Operation and Maintenance Data: The Contractor shall provide the Owner with (3) copies of

technical literature on all system components. For packaged engine generators to include in emergency, operation, and maintenance manuals. Include the following:

1.

2. List of tools and replacement items recommended to be stored at the Project for ready access. Include part and drawing numbers, current unit prices, and source of supply.

3. Service manuals and parts list.

4. Shop drawing submittal information.

5. Wiring and control diagrams. 6. Test reports and certificates.


A. Installer Qualifications: Manufacturer's authorized representative who is trained and approved for installation of units required for this Project.

1. Maintenance Proximity: Supplier shall have a parts and service facility located within

100 miles of project site with factory-trained technicians in full time employ and a stock

of spare parts facility must be within two hours' maximum response time

B. Source Limitations: Obtain packaged generator sets and auxiliary components through one

source from a single manufacturer.

C. 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.

D. Comply with NFPA 37.



E. Comply with NFPA 70.

F. Comply with Level 1 systems of NFPA 110.

G. Engine Exhaust Emissions: Comply with applicable state and local government requirements

where more stringent than requirements listed in this Section.

H. Noise Emission: Comply with applicable state and local government requirements for

maximum noise level at adjacent property boundaries due to sound emitted by generator set including engine, engine exhaust, engine cooling-air intake and discharge, and other

components of installation where more stringent than requirements listed in this Section.

1.6 COORDINATION

A. Coordinate size and location of concrete bases. Cast anchor-bolt inserts into bases. Concrete,

reinforcement, and formwork requirements are specified in Division 3.

1.7 EXTENDED WARRANTY

A. Special Warranty: Manufacturer's standard form in which manufacturer agrees to repair or

replace components of packaged engine generators and associated auxiliary components that

fail in materials or workmanship within specified warranty period. Warranty shall include all

parts, labor (including travel), expenses and equipment necessary to perform replacement and/or repairs.

1. Warranty Period: 5 years from date of Substantial Completion. Where manufacturer’s

standard warranty only covers equipment from date of manufacturer, the Contractor shall provide difference in warranty period.

1.8 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 each of lubricating oil, fuel, and combustion-air filters.

PART 2 - PRODUCTS

2.1 MANUFACTURERS


products shall be the following:

1. 2. Olympian/Caterpillar; Engine Div.

3. Generac Power Systems, Inc.

4. Kohler Co; Generator Division.

5.



6.

2.2 ENGINE-GENERATOR SET

A. Factory-assembled and –tested, engine-generator set.

B. Power Output Ratings: Nominal ratings as listed in summary, with capacity as required to

operate as a unit as evidenced by records of prototype testing.

C. Output Connections: Three phase, four wire, wye; factory set for 277/480 volt, three phase, four wire, 12 lead reconnectable.

D. Safety Standard: Comply with ASME B15.1.

E. Nameplates: Each major system component shall be equipped with a nameplate to identify manufacturer's name and address, and model and serial number of component.

F. Fabricate engine-generator-set mounting frame and attachment of components to resist

generator-set movement during a seismic event when generator-set mounting frame is anchored to building structure.

G. Mounting Frame: Adequate strength and rigidity to maintain alignment of mounted

components without depending on concrete foundation. Mounting frame shall be free from

sharp edges and corners and shall have lifting attachments arranged for lifting with slings without damaging components.

1. Rigging Diagram: Inscribed on metal plate permanently attached to mounting frame to

indicate location and lifting capacity of each lifting attachment and generator-set center of gravity.

2.3 GENERATOR-SET PERFORMANCE

A. Steady-State Voltage Operational Bandwidth: 3 percent of rated output voltage from no load to full load.

B. Steady-State Voltage Modulation Frequency: Less than 1 Hz.

C. Transient Voltage Performance: Not more than 20 percent variation for 50 percent step-load

increase or decrease. Voltage shall recover and remain within the steady-state operating band within three seconds.

D. Steady-State Frequency Operational Bandwidth: 0.5 percent of rated frequency from no load to

full load.

E. Steady-State Frequency Stability: When system is operating at any constant load within the

rated load, there shall be no random speed variations outside the steady-state operational band

and no hunting or surging of speed.



F. Transient Frequency Performance: Less than 5 percent variation for a 50 percent step-load

increase or decrease. Frequency shall recover and remain within the steady-state operating band within five seconds.

G. Output Waveform: At no load, harmonic content measured line to line or line to neutral shall

not exceed 5 percent total and 3 percent for single harmonics. The telephone influence factor,

determined according to NEMA MG 1, shall not exceed 50 percent.

H. Sustained Short-Circuit Current: For a 3-phase, bolted short circuit at system output terminals,

the system shall supply a minimum of 250 percent of rated full-load current for not less than 10

seconds and then clear the fault automatically, without damage to generator system components.

I. Start Time: Generator-set shall be comply fully operational and loaded within 10 seconds from

loss of power or initiation of plant exerciser and manual run per NFPA 110.

J. Generator frequency and voltage stability shall be maintained while operating solid state and variable frequency drives equipment.

K. Oversizing alternator compared with the rated power output of the engine is permissible to meet

specified performance.

1. Nameplate Data for Oversized Generator: Show ratings required by the Contract Documents rather than ratings that would normally be applied to generator size installed.

2.4 SERVICE CONDITIONS

A. Environmental Conditions: Engine-generator system shall withstand the following environmental conditions without mechanical or electrical damage or degradation of

performance capability:

1. Ambient Temperature: Minus 15 to plus 40 deg C. 2. Relative Humidity: 0 to 95 percent.

3. Altitude: Sea level to 1000 feet (300 m).

2.5 ENGINE

A. Fuel: Natural Gas.

B. Rated Engine Speed: 1800 rpm.

C. Maximum Piston Speed for Four-Cycle Engines: 2250 fpm (11.4 m/s).

D. Lubrication System: The following items are mounted on engine or skid: 1.

2. Thermostatic Control Valve: Control flow in system to maintain optimum oil

temperature. Unit shall be capable of full flow and is designed to be fail-safe.

3. Crankcase Drain: Arranged for complete gravity drainage to an easily removable container with no disassembly and without use of pumps, siphons, special tools, or

appliances.



E. Engine Fuel System:

1. Natural Gas: a. Carburetor.

b. Secondary Gas Regulators.

c. Fuel-Shutoff Solenoid Valves.

F. Elevation of ignition source shall be a minimum of 18” AFF unless listed as flammable vapor ignition resistance.

G. Coolant Jacket Heater: Electric-immersion type, factory installed in coolant jacket system.

Provide piping with shut-off valves.

H. Governor: Adjustable electronic isochronous, with speed sensing.

2.6 ENGINE COOLING SYSTEM

A. Description: Closed loop, liquid cooled, with radiator factory mounted on engine-generator-set mounting frame and integral engine-driven coolant pump.

B. Radiator: Vertical Discharge. See requirements for sound attenuated weatherproof enclosure.

1.

2. Rated for specified coolant. 3. Size of Radiator: Adequate to contain expansion of total system coolant from cold start

to 110 percent load condition

C. Coolant: Solution of 50 percent ethylene-glycol-based antifreeze and 50 percent water, with anticorrosion additives as recommended by engine manufacturer.

D. Temperature Control: Self-contained, engine mounted, thermostatic-control valve modulates

coolant flow automatically to maintain optimum constant coolant temperature as recommended by engine manufacturer.

E. Coolant Hose: Flexible assembly with inside surface of nonporous rubber and outer covering of

aging-, ultraviolet-, and abrasion-resistant fabric.

1. 2. Rating: 50-psig (345-kPa) maximum working pressure with coolant at 180 deg F

(82 deg C), and noncollapsible under vacuum.

3. End Fittings: Flanges or steel pipe nipples with clamps to suit piping and equipment connections.

2.7 ENGINE EXHAUST SYSTEM

A. Muffler: Integral to sound attenuated enclosure. See sound enclosure paragraph for further

requirements.



B. Exhaust piping shall terminate vertically with bird screen and flapper-style rain cap. Exhaust

piping external to enclosure shall be A STM A 53/A 53M, Schedule 40, welded, black steel, with welded joints and fittings

C. Connection from Engine to Exhaust System: Flexible section of corrugated stainless-steel pipe.

D. Connection from Exhaust Pipe to Muffler: Stainless-steel expansion joint with liner.

2.8 COMBUSTION-AIR INTAKE

A. Description: Standard-duty, engine-mounted air cleaner with replaceable dry-filter element and

"blocked filter" indicator.

2.9 STARTING SYSTEM

A. Description: 24-V electric, with negative ground and including the following items:

1. Components: Sized so they will not be damaged during a full engine-cranking cycle with

ambient temperature at maximum specified in "Environmental Conditions" Paragraph in "Service Conditions" Article.

2. Cranking Motor: Heavy-duty unit that automatically engages and releases from engine

flywheel without binding.

3. Battery: Adequate capacity within ambient temperature range specified in "Environmental Conditions" Paragraph in "Service Conditions" Article to provide

cranking cycle at least three times without recharging.

4. Battery Cable: Size as recommended by engine manufacturer for cable length indicated. Include required interconnecting conductors and connection accessories.

5. Heated Battery Compartment: Factory fabricated of metal with acid-resistant finish and

thermal insulation. Thermostatically controlled heater shall be arranged to maintain battery above 10 deg C regardless of external ambient temperature within range specified

in "Environmental Conditions" Paragraph in "Service Conditions" Article. Include

accessories required to support and fasten batteries in place.

6. Battery-Charging Alternator: Factory mounted on engine with solid-state voltage regulation and 45-A minimum continuous rating.

7. Battery Charger: Current-limiting, automatic-equalizing and float-charging type. Unit

shall comply with UL 1236 and include the following features: a. Operation: Equalizing-charging rate of 10 A shall be initiated automatically after

battery has lost charge until an adjustable equalizing voltage is achieved at battery

terminals. Unit shall then be automatically switched to a lower float-charging

mode and shall continue to operate in that mode until battery is discharged again. b. Automatic Temperature Compensation: Adjust float and equalize voltages for

variations in ambient temperature from minus 40 deg C to plus 60 deg C to prevent

overcharging at high temperatures and undercharging at low temperatures. c. Automatic Voltage Regulation: Maintain constant output voltage regardless of

input voltage variations up to plus or minus 10 percent.

d. Ammeter and Voltmeter: Flush mounted in door. Meters shall indicate charging rates.



e. Safety Functions: Sense abnormally low battery voltage and close contacts

providing low battery voltage indication on control and monitoring panel. Sense high battery voltage and loss of ac input or dc output of battery charger. Either

condition shall close contacts that provide a battery-charger malfunction indication

at system control and monitoring panel.

f. Enclosure and Mounting: NEMA 250, Type 1, wall-mounted cabinet suitable for mounting in generator enclosure.

2.10 CONTROL AND MONITORING

A. Functional Description: When mode-selector switch on the control and monitoring panel is in the automatic position, remote-control contacts in one or more separate automatic transfer

switches initiate starting and stopping of the generator set. When mode-selector switch is

switched to the on position, the generator set starts. The off position of the same switch initiates generator-set shutdown. When generator set is running, specified system or equipment failures

or derangements automatically shut down the generator set and initiate alarms. Operation of a

remote emergency-stop switch also shuts down the generator set.

B. Configuration: Operating and safety indications, protective devices, basic system controls, and engine gages shall be grouped in a common control and monitoring panel mounted on the

generator set. Mounting method shall isolate the control panel from generator-set vibration.

C. Indicating and Protective Devices and Controls: NFPA 110 Level 1 compliant. 1. AC voltmeter (2% accuracy).

2. AC ammeter (2% accuracy).

3. AC frequency meter. 4. DC voltmeter (alternator battery charging).

5. Engine-coolant temperature gage.

6. Engine lubricating-oil pressure gage.

7. Running-time meter. 8. Ammeter-voltmeter, phase-selector switch(es).

9. Generator-voltage adjusting rheostat.

10. Auto-Start-Stop switch. 11. Emergency Stop switch.

12. Overspeed shutdown device.

13. Coolant high-temperature shutdown device.

14. Coolant low-level shutdown device. 15. Oil low-pressure shutdown device.

16. Generator overload.

D. Supporting Items: Include sensors, transducers, terminals, relays, and other devices and include wiring required to support specified items. Locate sensors and other supporting items on engine

or generator, unless otherwise indicated.

E. Remote Annunciator with Audible Alarm: NFPA 110 Level 1 compliant. Visually signal the occurrence of the events as listed below on remote annunciator. Audibly signal the occurrence

of any event without differentiating between event types. Connect so that after an alarm is

silenced, clearing of initiating condition will reactivate alarm until silencing switch is reset.



1.

2. Control switch not in auto position. 3. Engine high-temperature prealarm.

4. Engine high-temperature shutdown.

5. Lube-oil low-pressure prealarm.

6. Lube-oil low-pressure shutdown. 7. Overspeed shutdown.

8. Overcrank shutdown.

9. Low coolant level. 10. Coolant low-temperature alarm.

11. Battery-charger malfunction alarm.

12. Battery low-voltage alarm. 13. Generator overload.

2.11 GENERATOR OVERCURRENT AND FAULT PROTECTION

A. Generator Circuit Breakers: Molded-case, thermal-magnetic type; 100 percent rated; complying

with NEMA AB 1 and UL 489. Provide multiple breakers as indicated on the plans. 1.

2. Tripping Characteristic: Designed specifically for generator protection.

3. Trip Rating: Matched to generator rating. 4. Shunt Trip: Connected to trip breaker when generator set is shut down by other

protective devices.

5. Mounting: Adjacent to or integrated with control and monitoring panel.

B. Ground-Fault Indication: Comply with NFPA 70, Article 700-7(d). Integrate ground-fault

alarm indication with other generator-set alarm indications.

C. Mounting Panel: Sized to accommodate number of circuit breakers as shown on plans.

2.12 GENERATOR, EXCITER, AND VOLTAGE REGULATOR

A. Provide generator with permanent magnet excitation.

B. Comply with NEMA MG 1 and specified performance requirements.

C. Drive: Generator shaft shall be directly connected to engine shaft. Exciter shall be rotated integrally with generator rotor.

D. Electrical Insulation: Class F per NEMA MG1-1.65.

E. Stator-Winding Leads: Brought out to terminal box to permit future reconnection for other

voltages if required.

F. Construction shall prevent mechanical, electrical, and thermal damage due to vibration,

overspeed up to 125 percent of rating, and heat during operation at 110 percent of rated

capacity.



G. Excitation shall use no slip or collector rings, or brushes, and shall be arranged to sustain

generator output under short-circuit conditions as specified.

H. Enclosure: Driproof.

I. Instrument Transformers: Mounted within generator enclosure.

J. Voltage Regulator: Solid-state type, separate from exciter, providing performance as specified.

1. Adjusting rheostat on control and monitoring panel shall provide plus or minus 5 percent adjustment of output-voltage operating band.

K. Strip Heater: Thermostatically controlled unit arranged to maintain stator windings above dew

point.

L. Windings: Two-thirds pitch stator winding and fully linked amortisseur winding.

M. Subtransient Reactance: 12 percent, maximum.

2.13 SOUND ATTENUATED WEATHERPROOF GENERATOR-SET ENCLOSURE

A. Description: Vandal-resistant, sound attenuating, weatherproof steel housing, wind resistant up

to 100 mph (160 km/h). Enclosure shall be constructed of 14 gauge cold rolled steel. Multiple

panels shall be lockable and provide adequate access to components requiring maintenance.

Panels shall be removable by one person without tools. Instruments and control shall be mounted within enclosure. Enclosure shall be provided with Manufacturer's standard enamel

over corrosion-resistant pretreatment and compatible standard primer.

B. Engine Cooling Airflow through Enclosure: Maintain temperature rise of system components within required limits when unit operates at 110 percent of rated load for 2 hours with ambient

temperature at top of range specified in system service conditions.

1. Vertical Discharge: Discharge of radiator exhaust/discharge shall exit enclosure vertically up away from enclosure.

2. Louvers: Fixed-engine cooling-air inlet and discharge. Storm-proof and drainable

louvers prevent entry of rain and snow.

C. Exhaust Silencing System: Exhaust silencing system shall be totally self-contained within enclosure. Exhaust system shall terminate in vertical discharge. All sound levels produced by

exhaust system shall be included in measurements listed below.

D. Sound Attenuation: Manufacturer’s standard enclosure literature shall demonstrate compliance with the following sound levels at 1800 RPM engine speed.

1.

2. At 3’ from enclosure: 84/80 dBA (full load/no load).

3. At 23’ from enclosure: 77/74 dBA (full load/no load). 4. At 50’ from enclosure: 70/67 dBA (full load/no load).

E. Convenience Outlets: Factory wired. Arrange for external electrical connection.



2.14 SOURCE QUALITY CONTROL

A. Prototype Testing: Factory test engine-generator set using same engine model, constructed of identical or equivalent components and equipped with identical or equivalent accessories.

1. Tests: Comply with NFPA 110, Level 1 energy converters in Paragraphs 3.2.1, 3.2.1.1,

and 3.2.1.2.

2. Generator Tests: Comply with IEEE 115. 3. Components and Accessories: Items furnished with installed unit that are not identical to

those on tested prototype shall have been factory tested to demonstrate compatibility and

reliability.

B. Project-Specific Equipment Tests: Before shipment, factory test engine-generator set and other

system components and accessories manufactured specifically for this Project. Perform tests at

rated load and power factor. Include the following tests: 1. Full load run.

2. Maximum power.

3. Voltage regulation.

4. Transient and steady-state governing. 5. Single-step load pickup.

6. Safety shutdown.

7. Observation of Factory Tests: Provide 14 days' advance notice of tests and opportunity for observation of tests by Owner's Representative.

C. Report factory test results within 10 days of completion of test.

PART 3 - EXECUTION

3.1 EXAMINATION

A. Examine areas, equipment bases, and conditions, with Installer present, for compliance with

requirements for installation and other conditions affecting packaged engine-generator

performance.

B. Examine roughing-in of piping systems and electrical connections. Verify actual locations of

connections before packaged engine-generator installation.

C. Proceed with installation only after unsatisfactory conditions have been corrected.

3.2 GENERATOR STARING SIGNAL:

A. The stating signal will originate from the existing automatic transfer switch DPATS3, see sheet

E2.2 for location and model number. Contractor shall program existing ATS to operate

generator. The generator will start on a time delay of 45 seconds if utility source is not available. The time delay period will be discussed/verified with owner and engineer during

programing



3.3 CONCRETE BASES

A. Coordinate size and location of concrete bases with actual equipment to be installed. Refer to detail on plans.

3.4 INSTALLATION

A. Comply with packaged engine-generator manufacturers' written installation and alignment

instructions and with NFPA 110.

B. Elevation of fuel ignition source shall be a minimum of 18” AFF unless listed as flammable

vapor ignition resistance

C. Install packaged engine generators level on concrete base.

D. Install packaged engine generator to provide access, without removing connections or

accessories, for periodic maintenance.

E. Electrical Wiring: Install electrical devices furnished by equipment manufacturers but not specified to be factory mounted.

3.5 CONNECTIONS

A. Drawings indicate general arrangement of piping and specialties. The following are specific

connection requirements: 1. Connect fuel piping to engines with flexible fuel lines.

2. Connect exhaust-system piping to engines.

B. Ground equipment according to Division 26 Section "Grounding and Bonding."

C. Connect wiring according to Division 26 Section "Conductors and Cables."

D. Tighten electrical connectors and terminals according to manufacturer's published torque-

tightening values. If manufacturer's torque values are not indicated, use those specified in UL 486A.

3.6 IDENTIFICATION

A. Identify system components according to Division 26 Section "Basic Electrical Materials and

Methods."


A. Manufacturer's Field Service: Engage a factory-authorized service representative to

inspect, test, and adjust field-assembled components and equipment installation, including



connections, and to assist in field testing. Report results in writing. The Owner shall be given

advanced 10 day notice in order to witness testing.

B. Perform the following field tests and inspections and prepare test reports:

1. Testing shall be in accordance with NFPA 110-2202 including cycle crank and

performance tests.

2. Perform each electrical test and visual and mechanical inspection stated in NETA ATS, Sections 7.15.2.1 and 7.22.1 (except for vibration baseline test). Certify compliance with

test parameters.

3. Perform tests recommended by manufacturer. 4. Battery Tests: Equalize charging of battery cells according to manufacturer's written

instructions. Record individual cell voltages.

a. Measure charging voltage and voltages between available battery terminals for full-charging and float-charging conditions. Check electrolyte level and specific

gravity under both conditions.

b. Test for contact integrity of all connectors. Perform an integrity load test and a

capacity load test for the battery. c. Verify acceptance of charge for each element of the battery after discharge.

d. Verify that measurements are within manufacturer's specifications.

5. Battery-Charger Tests: Verify specified rates of charge for both equalizing and float-charging conditions.

6. System Integrity Tests: Methodically verify proper installation, connection, and integrity

of each element of engine-generator system before and during system operation. Check for air, exhaust, and fluid leaks.

7. Exhaust-System Back-Pressure Test: Use a manometer with a scale exceeding 40-inch

wg (120 kPa). Connect to exhaust line close to engine exhaust manifold. Verify that

back pressure at full-rated load is within manufacturer's written allowable limits for the engine.

8. Voltage and Frequency Transient Stability Tests: Use recording oscilloscope to measure

voltage and frequency transients for 50 and 100 percent step-load increases and decreases, and verify that performance is as specified.

9. Harmonic-Content Tests: Measure harmonic content of output voltage under 25 percent

and at 100 percent of rated linear load. Verify that harmonic content is within specified

limits. Check harmonic content of output voltage when operating variable speed drives. 10. Noise Level Tests: Measure A-weighted level of noise emanating from generator-set

installation, including engine exhaust and cooling-air intake and discharge, at four

locations on the property line, and compare measured levels with required values.

C. Load Bank Testing: Prior to acceptance of the installation, the generator shall be subjected to a

four hour load bank test. This test shall be performed at the job site in the presence of an

Owner’s representative. Test shall include continuous operation of generator set at 50% load for one hour, 75% for next hour, and 100% for final two hours. Upon completion of the four

hour test, the generator shall be shut-down after the cool down period. Next the generator shall

be started and immediately upon reaching rated speed, 100% percent load shall be applied to

demonstrate one step full load capability. The capability of the system to pick up full standby service load with 10 second of power outage shall also be demonstrated. After testing is

complete:

1. Copy of the generator’s load test report shall be sent to the engineer of record, and the owner.



D. Coordinate tests with tests for transfer switches and run them concurrently.

E. Test instruments shall have been calibrated within the last 12 months, traceable to standards of the National Institute for Standards and Technology, and adequate for making positive

observation of test results. Make calibration records available for examination on request.

F. Leak Test: After installation, charge system and test for leaks. Repair leaks and retest until no

leaks exist.

G. Operational Test: After electrical circuitry has been energized, start units to confirm proper

motor rotation and unit operation.

H. Test and adjust controls and safeties. Replace damaged and malfunctioning controls and equipment.

I. Remove and replace malfunctioning units and retest and reinspect as specified above.

J. Retest: Correct deficiencies identified by tests and observations and retest until specified requirements are met.

K. Report results of tests and inspections in writing. Record adjustable relay settings and measured

insulation resistances, time delays, and other values and observations. Attach a label or tag to

each tested component indicating satisfactory completion of tests.

3.8 STARTUP SERVICE

A. Engage a factory-authorized service representative to perform startup service. Representative

shall inspect and test field-assembled components and equipment installation, including piping and electrical connections. Report results in writing. Complete installation and startup checks

according to manufacturer's written instructions.

3.9 DEMONSTRATION

A. Engage a factory-authorized service representative to train Owner's maintenance personnel to

adjust, operate, and maintain packaged engine generators.

1. Coordinate this training with that for transfer switches.



& COMPUTER ROOM ELECTRICAL UPGRADES SECTION 263353-1 STATIC UNINTERRUPTIBLE POWER SUPPLY

SECTION 263353 - STATIC UNINTERRUPTIBLE POWER SUPPLY

PART 1 - GENERAL




1.2 SUMMARY

A. This Section includes three-phase, static bypass transfer switch.

B. These specifications describe the requirements for an automatic static transfer switch. The

transfer switch is a solid-state, three-pole, dual-position transfer switch designed to switch automatically and manually between two synchronized three-phase AC power sources without

an interruption of power to the load longer than 1/4 cycle.

C. The input power shall be supplied from two different AC power sources, which are nominally of the same voltage level, phase rotation and frequency. The primary purpose of the transfer

switch is to allow virtually uninterrupted transfer from one source to the other in case of the

failure of one source or by manual initiation for test or maintenance. The switching action shall

not connect together the two sources of power that would allow backfeeding one source to the other. The transfer switch shall allow for either source to be designated as the preferred source.

The switch will automatically transfer to the preferred source and remain so until manually

initiated to transfer or until the selected source fails. If the selected source fails, the transfer switch shall transfer without interruption greater than 1/4 cycle to the other source, designated

as the alternate source. The transfer switch shall be furnished with key-interlocked static switch

isolation and bypass breakers to each source, which allow uninterrupted manual transfer to and from either source for maintenance.

D. Scope of Work

1. Provide two 480V, 1000 amp automatic static transfer switch. Switch will be installed in

existing system.

1.3 DEFINITIONS

A. EMI: Electromagnetic interference.

B. LCD: Liquid-crystal display.

C. LED: Light-emitting diode.

D. THD: Total harmonic distortion.



1.4 SUBMITTALS

A. Product Data: Include data on features, components, ratings, and performance for each UPS component indicated.

B. Shop Drawings: Detail assemblies of equipment indicating dimensions, weights, components,

and location and identification of each field connection. Show access, workspace, and

clearance requirements; details of control panels; and battery arrangement.

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

2. Dimensioned Outline Drawings of Equipment Unit: Identify center of gravity and locate

and describe mounting and anchorage provisions. 3. Detailed description of equipment anchorage devices on which the certification is based

and their installation requirements.

C. Qualification Data: For Installer and manufacturer.

D. Manufacturer Certificates: For each product, signed by manufacturers.

E. Factory Test Reports: Comply with specified requirements.

F. Field Quality-Control and Performance Test Reports: Indicate test results compared with

specified performance requirements, and provide justification and resolution of differences if values do not agree.

G. Operation and Maintenance Data:

1. Lists of spare parts and replacement components recommended being stored at Project site for ready access.

2. Detailed operating instructions covering operation under both normal and abnormal

conditions.


A. Installer Qualifications: Manufacturer's authorized representative who is trained and approved

for both installation and maintenance of units required for this Project.

B. The specified system shall be designed, manufactured, tested and installed in accordance with:

• American National Standards Institute (ANSI)

• Canadian Standards Association (CSA)

• Institute of Electrical and Electronics Engineers (IEEE)

• ISO 9001

• National Electrical Code (NEC)

• National Electrical Manufacturers Association (NEMA)

• National Fire Protection Association (NFPA)

• Underwriters Laboratories (UL) (ULc)

• EN 50091-2

• EN 61000-6-3 & 6-2



• EN 60947-6-1

• IEC 62310

C. Electrical Components, Devices, and Accessories: Listed and labeled as defined in NFPA 70,


D. UL Compliance: UL listed per UL Standard 1008 for Automatic Transfer Switches.

E. Comply with the latest FCC Part 15 EMI emission limits for Class A computing devices and the emission limits of EN50091-1, 2, 3 Class A.

F. Comply with the immunity requirements of EN50082-1.


A. Deliver equipment in fully enclosed vehicles after specified environmental conditions have been

permanently established in spaces where equipment is to be placed.

B. Store equipment in spaces with environments controlled within manufacturer's ambient

temperature and humidity tolerances for non-operating equipment.

PART 2 - PRODUCTS

2.1 MANUFACTURERS

A. Manufacturers: Basis of Design and quality standard of product desired and not to restrict bidders to a specific brand, make, manufacturer or specific name. The manufacturers and

products listed in Schedule are used only to set forth and convey to bidders the general style,

type, character, and quality of product desired

1. Liebert Corporation; a division of Emerson Model STS2

2.2 AUTOMATIC STATIC TRANSFER SWITCH

A. Design Requirements

1. Voltage: Input/Output voltage specifications of the switch shall be (480) volts, three

phase, (60) Hz, (4)-wire plus ground.

2. Output Load Capacity: Specified output load capacity of the switch shall be (100)A. The switch shall be continuous to carry a full 100% load.



B. Modes of Operation: The Static Transfer Switch shall be a three-pole, double-throw, solid-state,

automatic transfer switch that is fed from two AC power sources. One source shall be designated as the preferred source, while the other is the alternate source. Selection of which

input source is preferred shall be user selectable from the operator control panel. All transfers

shall be a fast break-before-make with no overlap in conduction from one source to the other.

All transfers, including sense and transfer times, shall have less than a ¼ cycle interruption in power to the load.

The Static Transfer Switch is fuseless and consists of six pairs of Silicon Controlled Rectifiers

(SCRs) connected in an AC switch configuration. The brick type SCRs are continuous rated to carry 100% of the switch rated load while operating within the switch specifications. The use

of fuses for protection is not permitted due to possible fuse clearing in an out of phase transfer.

The Static Transfer Switch logic power shall automatically power up when connected to the power source. The control panel shall be active as long as one input to be switch is energized.

The switch shall be supplied with factory default settings, mechanical trim pots shall not be

used for calibration or adjusting settings. All settings must be adjustable; the settings shall be

adjusted/configured from the LCD display.

1. Normal Mode. The unit is fed by two sources with the output connected to the load. In

normal operation, the load shall be connected to the preferred source as long as all phases

of the preferred source are within the acceptable limits. Upon failure of the preferred source, the load shall be transferred to the alternate source until such time as the preferred

source returns to within the acceptable limits. Transfer voltage limited shall be ±10% of

the nominal input voltage for steady state conditions, with low voltage transfer limits having an inverse time relationship that is within the IEEE Std. 446 computer voltage

tolerance envelope. After the preferred source returns to within the acceptable voltage

limits for at least the preset adjustable retransfer time delay (typically 3 seconds) and is in

phase with the alternate source, the load shall be retransferred automatically to the preferred source. The automatic retransfer to the preferred source can be disabled if so

selected by the user from the operator control panel. When the automatic retransfer is

disabled, emergency transfers from the alternate source to the preferred source shall not be disabled upon alternate source failure.

2. Load Current Inhibit. The switch shall sense the load current and, if the load current

exceeds an adjustable preset level deemed to represent a load inrush or fault condition,

the switch shall disable the automatic transfer even if the voltage on the selected source exceeds the transfer limits. The load current transfer inhibit shall be automatically reset

after the current returns to normal to allow for continued protection against a source

failure.

3. Manual Transfer. The switch shall allow manually initiated transfers between two

sources, providing the alternate source in within acceptable voltage limits and phase

tolerances with the preferred source. Allowable phase differences between the sources for manually initiated transfers shall be adjustable from the operator control panel. The

switch shall be capable of tolerating transfers up to 180 degrees out of phase for

emergency conditions. However, the user-adjustable phase synchronization window

shall be limited to ±30 degrees. If the transfer is manually initiated, the switch shall transfer between the two sources without interruption of power to the load greater than 1

millisecond provided that both sources are available and synchronized within the user-

adjustable phase synchronization window. For sources where the two frequencies are not



exactly the same (as would be the case between a utility and standby generator source),

manually initiated transfers shall be delayed by the switch until the two sources are within the user-adjustable phase synchronization window.

4. Emergency Transfer. In an effort to maintain power to the load, upon loss of the source

that the load is connect to , the switch shall automatically transfer to the other source in

less than ¼ cycle, overriding any retransfer time delays or other inhibits except load overcurrent providing that the other source is available. If one source is shorted

upstream, causing an undervoltage condition on that source, the switch will sense the

undervoltage and transfer to the alternate source.

5. SCR Failure. The switch shall continuously monitor the status of the SCR switching

devices for proper operation. In the event of a shorted SCR on the source powering the

load, the switch shall automatically alarm the condition and trip open the other source isolation breaker. In the event of a shorted SCR on the other source, the switch shall

automatically alarm the condition and trip open the other source isolation breaker. In the

event of an open SCR, the switch shall automatically alarm the condition and transfer to

the other source. All open and shorted SCT alarm conditions shall be latched and require the system to be repaired and reset to restore normal operation.

6. Maintenance Bypass. The switch shall be furnished with key-interlocked maintenance

bypass breakers that allow the switch power, controls, and monitoring electronics to be bypassed to either input source for maintenance without interruption of power to the load.

The packaging of the switch shall have all electronics isolated from the input, output, and

bypass connections to allow safe servicing of any components without access to hazardous voltages when the unit is in maintenance bypass.

C. Performance Requirements

1. Nominal Input/Output Voltage: 480 volts three phase (4) wire-plus-ground.

2. Voltage Range: ±10%, -10% of nominal 3. Frequency: (50) (60) Hz ±Hz

4. Maximum Continuous Current: 100 amps

5. Load Power Factor Range: 0.75 to 1.0 leading or lagging 6. Load Crest Factor: Up to 3.5

7. Source Voltage Distortion: Up to 10% THD with notches and ringing transients.

8. Surge Protection: Sustains input surges without damage per criteria listed in ANSI

C62.41 Category A and B 9. Sensing and Transfer Time: 4 ms

Overload Capability 125% for 30 minutes (100-400)A

150% for 2 minutes 500% for 0.25 seconds

10. Short Circuit Withstand Capability:

480v-100A-100ka short circuit withstand rating.

D. Reliability 1. The static transfer switch shall be designed for high reliability and high availability with

an MTBF exceeding 1,000,000 hours. To the fullest extent practical, redundant circuits

and components shall be used to eliminate single points of failure.



2. Redundant power supplies shall be provided to prevent any single-point power supply

failure mode. The static transfer switch shall have two completely separate power supplies mounted on separate boards so a power supply can be replaced while the load is

on bypass. There shall be two separate DC buses, one from each power supply, to provide

redundancy throughout the controls.

3. Control logic shall be triple-redundant. Each of the three logic modules shall have its own separate power connection to each power supply bus. Each logic module shall be fused to

prevent it from shorting the power supplies if an internal failure occurs. Gating and

control logic shall be partitioned so that the failure of one source’s gating or sensing logic does not prevent the switch from transferring to the other source.

4. All electrical components requiring normal maintenance or repair shall be replaceable

without de-energizing the load, assuming that at least one source is available. Solid-state switching devices shall be packaged to allow safe repair of the switching devices without

having to de-energize the load. All molded case switches or non-auto circuit breakers

shall be of a plug-in or draw-out type to allow replacement without de-energizing the

load. All control and logic components shall be mounted separate from the power components.

5. No fuses are to be used to protect the solid-state power switching devices. All solid-state

power switching devices shall be rated to prevent hazardous device failure in power systems with available fault currents up to 65,000A @ 480V.

6. The static transfer switch shall be designed for front access only. The static transfer

switch shall be designed so all installation, repairs and maintenance can be done from the

front or top of the unit. The static transfer switch shall be designed to minimize the exposure of hazardous voltages to allow safe servicing of the unit while the load is

energized. Barriers shall be used on and around customer connections to protect

personnel during maintenance

E. System Components

1. The static transfer switch shall be equipped with five molded-case, plug-in, non-

automatic circuit breakers. The breakers shall be UL listed and IEC rated for use at the system voltage. The plug-in feature of the breaker shall include interlock, which prevents

the breaker from being unplugged without being in the Off (open) position. Three of the

breakers shall provide for total isolation of the solid-state switching devices with an input breaker for each source and a load isolation breaker. Two of the breakers shall provide

for maintenance bypassing of the solid-state switching devices to either input source. Key

interlocks shall be provided on the breakers to prevent improper maintenance bypass-ing

of the solid-state switch. A bypass breaker cannot be closed unless the solid-state switch is con-nected to the same input source, and only one bypass breaker can be closed at a

time. All breakers shall be equipped with N.O. and N.C. auxiliary switches for

monitoring of the breaker positions. The two input breakers for the solid-state switching devices also shall be equipped with 48 VDC shunt trips to allow for control by the switch

logic.

2. The static transfer swtich consist of six pairs of SCRs connected in an AC switch configuration. The SCRs shall be brick-type and rated to carry the full 100% rated load.

The SCRs shall be rated to prevent hazardous device failure in power systems with

available fault currents listed in Section 1.4.3, Item K.

3. The static transfer switch shall be provided with a microprocessor-based control panel for operator inter-face to configure and monitor the static transfer switch. The control panel

shall be located on the front of the unit and can be operated without opening the hinged

front door. The display shall not be mounted to the front door so the door can be easily



removed for maintenance. A backlit, menu-driven, full graphics, color touch-screen

Liquid Crystal Display (LCD) shall be used to display sys-tem information, status information, a one-line diagram of the static transfer, active alarms, alarm history

information, startup and bypass instructions. No mechanical pushbuttons shall be used.

The mimic panel screen shall indicate the power flow, the status of all molded-case non-

automatic circuit breakers, the preferred source and the static transfer switch position (connected to source 1 or 2) as well as active alarms.

Pop-up boxes selected from the menu bar shall be provided for operator interface to the

LCD con-trol panel for menu selection, control of the preferred source, manual transfer initiation, au-to/manual retransfer selection and other system setpoints. In addition, an

operator can silence and reset the audible alarm by touching the screen. To facilitate STS

operation, help text, step-by-step startup, transfer and maintenance bypass procedures shall be displayed on the LCD screen. For manual transfers, a syncscope shall display the

leading or lagging real-time phase difference be-tween the two input sources.

The control panel shall be equipped with an internal RS232 port and Flash memory to

allow the static transfer switch software to be upgraded by a factory-trained customer engineer without shutting down the load.

To facilitate diagnostics, an event log of the last 512 alarm events shall be stored in non-

volatile memory and displayed on the LCD. Two history logs, each having 64 frames of unit status frozen upon an alarm condition designated as a freeze fault, will be stored in

non-volatile memory and displayable on the LCD. A frame shall be acquired every 4

milliseconds, with 40 frames before the fault and 23 frames after the fault. Each frame contains metering data, active alarms/faults and unit status. A system calendar and real-

time clock shall be included to time-stamp all stored events. Monitored parameters shall

be acquired two times per 4-millisecond frame.

CAN bus shall be used to communicate between the logic and the control panel as well as the op-tions.

For remote monitoring, a serial RS-232 port shall provide present switch status

information, alarm history information and the history of status screens that are triggered upon a major alarm event.

4. Active alarms shall be monitored and displayed simultaneously as part of the LCD event

panel. The following alarm messages shall be displayed: Source 1 Failure CB1 (Source 1) Open Power Supply S1 AC Failed

Source 2 Failure CB2 (Source 2) Open Power Supply S2 AC Failed

Sources Out of Sync CB3 (Output) Open Power Supply DC A Failed

An audible alarm shall be activated when any of the alarms occurs. All alarms shall be

displayed in text form.

5. The following metering parameters shall be displayed:

• Input AC voltage for both sources, line-to-line for each phase • Input AC current for both sources for each phase

• Input frequency for both sources

• Output kVA

• Output kW • Percent load

• Number of switch transfers

• Synchronization phase angle All voltages and currents shall be measured using true-RMS techniques for accurate

representation of non-sinusoidal waveforms associated with computers and other

electronic loads. The metering parameters shall have a full-scale accuracy of ±2%.



PART 3 - EXECUTION


A. A minimum of five years’ experience in the design, manufacture and testing of static transfer

switches systems is required. The specified system shall be completely factory-tested before

shipment. Testing shall include, but shall not be limited to: quality control checks, Hi-Pot test (two times rated voltage plus 1000 volts, per UL requirements), transfer tests and metering

calibration tests. The system shall be designed, manufactured and tested according to world-

class quality standards. The manufacturer shall be ISO 9001 certified.

B. Factory Testing Before shipment, the manufacturer shall fully and completely test the static

transfer switch to assure compliance with the specifications.

C. Record of Tests and Inspections: Maintain and submit documentation of tests and inspections,

including references to manufacturers' written instructions and other test and inspection criteria. Include results of tests, inspections, and retests.

3.2 DEMONSTRATION

A. Engage a factory-authorized service representative to train Owner's maintenance personnel to adjust, operate, and maintain the static transfer switch.

3.3 TRAINING

1. Maintenance training courses for customer employees shall be made available by the static transfer switch manufacturer. This training is in addition to the basic operator

training conducted as a part of the system startup.

2. The training course shall cover STS theory, location of subassemblies, safety and STS

operational procedures. The course shall include control, metering and feedback circuits to the Printed Circuit Board (PCB) level. Troubleshooting and fault isolation using alarm

information and internal self-diagnostics should be stressed.

B. Final Reports: Provide a final comprehensive report at the end of final test and analysis period.



& COMPUTER ROOM ELECTRICAL UPGRADES SECTION 263370-1 POWER DISTRIBUTION UNIT

SECTION 263370 – POWER DISTRIBUTION UNIT

PART 1 - GENERAL




1.2 SUMMARY

A. These specifications describe requirements for a complete power conditioning and distribution

system, supplying computer grade power to sensitive loads. The specified system shall provide

isolation*, distribution, control and monitoring of AC power. It shall include all equipment to properly interface the AC power source to the intended load.

B. Scope of Work

1. Provide two 125KVA units, Input voltage 480 volt, Output voltage 120/208 volt, 3-phase, 4-wire

1.3 DEFINITIONS

A. EMI: Electromagnetic interference.

B. LCD: Liquid-crystal display.

C. LED: Light-emitting diode.

D. THD: Total harmonic distortion.

1.4 SUBMITTALS

A. Product Data: Include data on features, components, ratings, and performance for each PDU

component indicated.

B. Shop Drawings: Detail assemblies of equipment indicating dimensions, weights, components, and location and identification of each field connection. Show access, workspace, and

clearance requirements; details of control panels; and battery arrangement.

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

2. Dimensioned Outline Drawings of Equipment Unit: Identify center of gravity and locate and describe mounting and anchorage provisions.

3. Detailed description of equipment anchorage devices on which the certification is based

and their installation requirements.



C. Qualification Data: For Installer and manufacturer.

D. Manufacturer Certificates: For each product, signed by manufacturers.

E. Factory Test Reports: Comply with specified requirements.

F. Field Quality-Control and Performance Test Reports: Indicate test results compared with

specified performance requirements, and provide justification and resolution of differences if

values do not agree.

G. Operation and Maintenance Data:

1. Lists of spare parts and replacement components recommended being stored at Project

site for ready access. 2. Detailed operating instructions covering operation under both normal and abnormal

conditions.


A. Installer Qualifications: Manufacturer's authorized representative who is trained and approved

for both installation and maintenance of units required for this Project.

B. The specified system shall be designed, manufactured, tested and installed in accordance with:

1. American National Standards Institute (ANSI) 2. Canadian Standards Association (CSA)

3. Federal Information Processing Standards Publication 94 (FIPS Pub 94)

4. Institute of Electrical and Electronics Engineers (IEEE) 5. ISO 9001

6. National Electrical Code (NEC - NFPA 70)

7. National Electrical Manufacturers Association (NEMA) 8. National Fire Protection Association (NFPA 75)

C. Underwriters The system shall be UL listed as a complete system under UL 60950 Standard for

Information Technology Equipment (UL listing applies to 60 Hz units only). 50 Hz units shall

comply with EN and the European Low Voltage Directive and be CE marked.

D. The specified system shall comply with latest FCC Part 15 EMI emission limits for Class A computing devices and the emission and immunity limits of EN50081-2/EN550022 Class A

and EN50082-2.

E. The system shall safely withstand without mis-operation or damage:

1. Transient voltage surges on the AC power input as defined by ANSI/IEEE C62.41 for

Category B3 locations (high surge exposure industrial and commercial facilities), 2. Electrostatic discharges (ESD) up to 10 kV at any point on the exterior of the unit

3. Electromagnetic fields from portable transmitters within 3 ft. (1m) of the unit.




A. Deliver equipment in fully enclosed vehicles after specified environmental conditions have been permanently established in spaces where equipment is to be placed.

B. Store equipment in spaces with environments controlled within manufacturer's ambient

temperature and humidity tolerances for non-operating equipment.

PART 2 - PRODUCTS

2.1 MANUFACTURERS

A. Manufacturers: Basis of Design and quality standard of product desired and not to restrict bidders to a specific brand, make, manufacturer or specific name. The manufacturers and

products listed in Schedule are used only to set forth and convey to bidders the general style,

type, character, and quality of product desired

1. Liebert Corporation; a division of Emerson Model PPU

2.2 FRAME CONSTRUCTION AND ENCLOSURE

A. The frame shall be constructed of welded steel to provide a strong substructure. The enclosure shall be mounted on four (4) heavy-duty swivel casters for portability and ease of installation and shall be provided with four permanent leveling jacks for final installation. The unit shall have easily removable and interchangeable output cable trays for each panelboard to allow matching of the size and number of cable/conduit openings to the site requirements. A

minimum of 42 cable/conduit openings shall be provided for each output panelboard. All service shall be capable of being performed with access to the front plus a choice of any one side or rear for installation flexibility. Retrofitting additional power distribution cables shall require access to the front of the unit only. A tool shall be required to remove the exterior panels, which access the hazardous voltage area of the unit. To ensure grounding integrity and for static protection and EMI/RFI shielding, the removable exterior panels shall be grounded to the frame by way of stranded copper wire. Hinged double front doors shall provide access to the main input circuit breaker and to all output circuit breakers. The color of the exterior panels shall be Black Gray Matte, color code ZP-7021.

B. The unit shall be naturally convection-cooled. No fans for forced-air cooling system shall be used. The convection cooling method shall allow continuous full-load operation without activation of over-temperature circuits. Heat rejection shall be through a screened protective top, which prohibits entry of foreign material.

C. The frame shall be configured to accept future field installation of additional bolt-on distribu-tion sections containing additional panelboard and cable tray capacity.

D. The complete system dimensions shall be a maximum of 44 in. (1118 mm) wide by 68 in. (1727 mm) high by 32 in. (813 mm) deep. The distributed floor weight shall be less than 250 lb./sq.ft. (1225 kg/sq. m).



2.3 INPUT POWER CONNECTIONS

A. A main input cable shall be provided for connection between the specified unit and the input voltage junction box. The cable shall be 10 ft. (3m) long and consist of the appropriate number and size of conductors inside a UL/CSA listed liquid-tight, flexible metal conduit.

B. The conductors shall be UL/CSA listed, 90°C minimum insulation, copper conductors, sized in accordance with the NEC, based on the main input circuit breaker rating. Both for reliability and per the NEC, no plug-and-receptacle connectors shall be used for the input power cable(s).

2.4 MAIN INPUT CIRCUIT BREAKER

A. The specified unit shall be equipped with a main input circuit breaker to provide over-current protection and a means for disconnecting all power to the unit. The main input circuit breaker shall be a three-pole molded case circuit breaker sized for 125% of the specified full load input current and rated for 600 VAC. The minimum UL-listed interrupting rating for the main input circuit breaker shall be 25,000 RMS symmetrical amperes at 480 volts AC. The main input cir-cuit breaker shall include a 24 VDC shunt trip mechanism to interface with unit controls, EPO buttons and other remote controls as required by the NEC and local codes.

2.5 ISOLATION TRANSFORMER

A. The unit shall contain an electro-statically shielded isolation transformer with a rating as de-scribed in Section 1.3. The transformer shall be a dry-type, double-shielded, three-phase, com-mon-core, convection air-cooled transformer. The transformer shall conform to UL1561, with 150°C maximum temperature rise. All transformer windings shall be copper. The transformer shall be energy efficient and meet NEMA standards TP-1 2002. The transformer shall exhibit the following characteristics: percent impedance, 3.7 to 5.3%; common mode noise attenuation, 120 dB; harmonic voltage distortion, 0.5% maximum additive; full-load efficiency, 96 to 98.6%.

B. The isolation transformer shall be provided with six full-capacity compensation taps at 2-1/2% increments to accommodate field adjustment to match the source voltage. These compensation taps shall be easily accessible by removal of one exterior panel. Tap changes include: two above

nominal voltage (upper range limit of +5%), nominal voltage and four below nominal voltage (lower range limit of -10%).

C. The unit shall be provided with additional thermal overload protection for the transformer. An alarm shall notify personnel if the transformer temperature reaches 180°C. The unit shall automatically shut down if the transformer temperature reaches 200°C. Temperature sensors shall be located in each coil of the three phase windings.

2.6 MANUAL RESTART

A. The specified unit shall be equipped with a manual restart feature to allow for an orderly supervised startup after power failure. The control circuit shall automatically energize the shunt trip mechanism of the main input breaker upon sensing output voltage failure. A field-selectable

auto-restart mode shall be provided to deactivate the manual restart if desired.



2.7 EMERGENCY POWER OFF (EPO)

A. The local EPO shall include a fully guarded and illuminated “Emergency Power Off” pushbutton. Pressing the EPO switch shall immediately shut down the unit by activating the shunt trip of the main input circuit breaker. As part of the EPO circuit, an interface shall also be

provided for connecting one or more normally open or normally closed remote EPO switches to the EPO circuit. For flexibility in meeting shutdown control schemes, the local EPO (unit shutdown) circuit shall be isolated from the remote EPO (room shutdown) circuit. The remote EPO circuit shall be designed to allow direct connection of multiple units with single and multiple shutdown control contacts.

2.8 COMPUTER GRADE GROUND

A. The specified system shall include a computer-grade, single-point ground in accordance with computer manufacturer’s recommendations, IEEE Std. 1100 and the requirements of the NEC. The transformer output neutral shall be solidly grounded in accordance with NEC article 250-26. Grounding conductors shall be sized in accordance with IEC 364-HD-384 and applicable

national and local codes.

2.9 OUTPUT DISTRIBUTION PANELBOARDS

A. The specified system shall contain Two (2) vertically mounted output Square D bolt-in panelboards for distribution to the intended loads. Each output distribution panelboard shall be individually protected by a main panelboard circuit breaker. Each panelboard shall be totally enclosed with a hinged accent panel that provides access to that panelboard without exposing other portions of the unit. The panelboard shall have a rating of 225 amperes, with an interrupting rating of RMS at 240/120 VAC. The panelboards shall each provide a total of 72 single-pole branch circuit breaker positions. Each panelboard shall include separate isolated neutral and safety-ground bus bars for the neutral and safety-ground connections for at least 42

output circuits. The neutral bus bar and wiring shall be sized for at least 1.73 times the panelboard full load rating to accommodate high harmonic neutral currents associated with single-phase nonlinear loads.

2.10 BRANCH CIRCUIT BREAKERS

A. Each load shall be protected by an individual branch circuit breaker as shown on the plans. Single-pole, two-pole and three-pole Square D bolt-on type branch breakers up through 100 amperes shall be utilized. Each branch circuit breaker shall provide over-current protection and shall clearly indicate the ON, OFF and TRIPPED positions. All branch circuit breakers shall have a minimum interrupting rating of 10kA RMS at 240/120 VAC. Each branch circuit breaker shall be sized in accordance with the NEC and shall be UL/CSA listed. Branch circuit breakers

shall have an associated directory label, located adjacent to the breaker, identifying the branch circuit number and the equipment being served.

2.11 POWER MONITORING SYSTEM

A. The specified system shall be equipped with a microprocessor-based power monitor panel. The monitor panel shall gather and process information from electrical and environmental sensors,



relays and switches both internal and external to the unit. The monitored parameters and alarms shall be displayed on the unit monitor panel and shall also be available for communication to a

Liebert centralized monitoring system using a two-wire, twisted-pair, low-voltage signal circuit having an RS-422 format for reliable communication up to 1000 meters. Additionally, the monitor panel shall be equipped with an RS-232 service port for adjusting parameters and performing diagnostics and an isolated RS-232 ASCII port for communication to other monitoring systems.

2.12 MONITORED PARAMETERS

A. The monitoring system shall monitor and display all of the following parameters:

1. Input Voltage, Line-To-Line for all three phases

2. Output Voltages, Line-to-Line for all three phases

3. Output Voltages, Line-To-Neutral for all three phases

4. Output Voltage Total Harmonic Distortion (THD) for all three phases

5. Output Current for all three phases

6. Output Current Total Harmonic Distortion (THD) all three phases

7. Output Current Crest Factor (Peak/RMS) for all three phases

8. Output Current Harmonic K-Factor for all three phases

9. Output Neutral Current

10. System Ground Current

11. Output Frequency

12. Output kVA

13. Output kW

14. Output Power Factor

15. Output kW-Hours

16. Percent Load

17. Date

18. Time

B. All three phases of the three-phase parameters shall be displayed simultaneously. All voltage

and current parameters shall be monitored using true RMS measurements for accurate represen-tation of non-sinusoidal waveforms typical of computers and other sensitive loads.

2.13 ALARM ANNUNCIATION

A. The monitoring system shall detect and annunciate by audible alarm and alarm message the following conditions:

1. Output Overvoltage

2. Output Undervoltage

3. Output Overcurrent

4. Neutral Overcurrent

5. Ground Overcurrent

6. Output Voltage Distortion



7. Frequency Deviation

8. Phase Sequence Error

9. Phase Loss

10. Transformer Overtemp

11. All alarm thresholds for monitored parameters shall be adjustable by way of the service port to match site requirements. The factory setpoints for the alarms shall be as follows:

12. Output Overvoltage - output voltage exceeds +6% of nominal

13. Output Undervoltage - output voltage falls below -13% of nominal

14. Output Overcurrent - output current exceeds 95% of full load amps

15. Neutral Overcurrent - neutral current exceeds 95% of full load amps

16. Ground Overcurrent - ground current exceeds 5 amps

17. Output Voltage Distortion - output voltage THD exceeds 10%

18. Frequency Deviation - output frequency exceeds ±0.5Hz of nominal

B. To facilitate troubleshooting, all alarms shall be stored in battery-backed (non-volatile) memory until reset to protect against erasure by a power outage. Alarms shall be able to be manually reset after the alarm condition has been corrected either at the unit or by way of the central monitoring system.

2.14 CUSTOM ALARM ANNUNCIATION

A. The monitoring system shall be capable of providing alarm annunciation for up to five contact closures (4 N.O. and 1 N.C.). A custom alarm message up to 20 characters shall be provided for each contact. Alarm messages shall be programmable by way of the service port to match site requirements.

2.15 SUMMARY ALARM CONTACT

A. A Form C (1 N.O. and 1 N.C.) Summary Alarm Contact shall be provided for remote alarm status. The contacts shall change state upon occurrence of any alarm and shall rest upon alarm silence.

2.16 DISPLAY

A. All monitored parameters and alarm messages shall be displayed on a 4 x 20 character, high-visibility liquid crystal display (LCD) located on the unit front door within a decorative bezel. Included in the bezel shall be an Identifying Unit Number, Emergency Power Off (EPO) switch and an Alarm Present/Silence switch.

B. The Alarm Present/Silence switch shall be illuminated upon occurrence of any alarm and remain illuminated until all alarms are reset. The switch shall also be used to silence the audible alarm and reset inactive alarms.



2.17 AUTOSCAN

A. For ease of operation, the monitoring system shall include an autoscan mode which provides continuous sequential selection and display of all monitored parameters and active alarm messages. A “Hold/Sequence” switch shall be provided to interrupt the autoscan mode and

manually select the displayed parameters when desired.

2.18 ACCESSORIES AND COMPONENTS TO BE INCLUDED

A. Network Interface Card (NIC)

1. STS shall have an OpenComms Network card, which enables the STS to communicate to a network management system (NMS). The Network Interface Card (NIC) will include internal hardware and software to communicate (via SNMP and HTTP) to any I.P.-based Ethernet network through a RJ-45 connector. The NIC shall provide redundant paths for communications that make it possible to connect to a Building Management System

(BMS) using Modbus while simultaneously communicating to a NMS through SNMP and HTTP. A terminal block shall be provided to connect to Modbus.

B. Floor Pedestals – NOTE: Height shown below should be verified prior to placing order

2. Floor Pedestals shall be furnished to level the unit and to provide bottom cabling access without relying upon a raised floor for support. The nominal height of the floor pedestals shall be 18 inches with adjustment for ±3 inches.

PART 3 - EXECUTION


A. Factory startup, preventive maintenance and full service for the specified system shall be

available and included upon request. The manufacturer shall directly employ a nationwide

service organization of factory-trained field service personnel dedicated to the startup, maintenance and repair of the manufacturer’s power equipment. The manufacturer shall

maintain a national dispatch center 24 hours per day, 365 days per year, to minimize service

response time and to maximize availability of qualified service personnel. Factory Testing

Before shipment, the manufacturer shall fully and completely test the static transfer switch to assure compliance with the specifications.

B. Record of Tests and Inspections: Maintain and submit documentation of tests and inspections,

including references to manufacturers' written instructions and other test and inspection criteria. Include results of tests, inspections, and retests.

3.2 DEMONSTRATION

A. Engage a factory-authorized service representative to train Owner's maintenance personnel to adjust, operate, and maintain the static transfer switch.



3.3 TRAINING

1. Maintenance training courses for customer employees shall be made available by the static transfer switch manufacturer. This training is in addition to the basic operator training

conducted as a part of the system startup.

2. The training course shall cover STS theory, location of subassemblies, safety and STS

operational procedures. The course shall include control, metering and feedback circuits to the Printed Circuit Board (PCB) level. Troubleshooting and fault isolation using alarm information

and internal self-diagnostics should be stressed.

3. Final Reports: Provide a final comprehensive report at the end of final test and analysis period.
