Heating, Ventilating and Air Conditioning (Hvac) Control Systems

8/6/2019 Heating, Ventilating and Air Conditioning (Hvac) Control Systems

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Am #0002 - 1

DEPARTMENT OF THE ARMYOmaha District, Corps of Engineers

106 South 15th StreetOmaha, Nebraska 68102-1618

_________________________________:NOTICE: Failure to acknowledge : Solicitation No. W9128F 06 R 0004:all amendments may cause rejec- ::tion of the offer. See FAR : Date of Issue: 04 JAN 2006:52.215-1 of Section 00100 : Date of Receiving Proposals:

09 FEB 2006

Amendment No. 000227 January 2006

SUBJECT: Amendment No. 0002 to specification and drawings for Construction ofLEADERSHIP DEVELOPMENT CENTER, CRWU 06-3003, BUCKLEY AFB, COLORADO.Solicitation No. W9128F 06 R 0004.

TO: Prospective Offerors and Others Concerned

1. The specifications and drawings for subject project are hereby modifiedas follows (revise all specification indices, attachment lists, and drawingindices accordingly).

a. Specifications. (Descriptive Changes.)

(1) Section 15951 References, in the following specificationsections and paragraphs, delete reference to Section 15951 andtitle and substitute 15950 HEATING, VENTILATING AND AIRCONDITIONING (HVAC) CONTROL SYSTEMS:

Section Paragraph01451A 3.513851 2.5.1.215569 2.5.615620 2.9.215700 2.10.315995 1.216402 3.1.8

(2) Section 15951, delete this section in its entirety andsubstitute attached Section 15950.

b. Drawings (Reissued). The following sheet of drawing code AF 179-90-01 is revised with latest revision date of 27 January 2006, and reissuedwith this amendment. Reissued drawings are available at: http://ebs-

nwo.wes.army.mil for this solicitation.

(1) Sheet E3.01.

2. This amendment is a part of the proposing papers and its receipt shall beacknowledged on the Standard Form 1442. All other conditions and requirementsof the specifications remain unchanged. If the proposals have been mailedprior to receiving this amendment, you will notify the office where proposalsare received, in the specified manner, immediately of its receipt and of anychanges in your proposal occasioned thereby.


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Am #0002 - 2

a. Hand-Carried Proposals shall be delivered to the U.S. Army Corpsof Engineers, Omaha District, Contracting Division (Room 301), 106 South 15thStreet, Omaha, Nebraska 68102-1618.

b. Mailed Proposals shall be addressed as noted in Item 8 on Page00010-1 of Standard Form 1442.

3. Offers will be received until 2:00 p.m., local time at place ofreceiving proposals, 09 JAN 2006.

Attachments:Section 15950 HEATING, VENTILATING AND AIR CONDITIONING (HVAC) CONTROL SYSTEMSDwgs. listed in 1.b. above

U.S. Army Engineer District, OmahaCorps of Engineers106 South 15th StreetOmaha, Nebraska 68102-1618

27 January 2006DRL/4547


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Leadership Development Center, CRWU 06-3003, Buckley AFB, Co BU44

SECTION TABLE OF CONTENTS

DIVISION 15 - MECHANICAL

SECTION 15950

HEATING, VENTILATING AND AIR CONDITIONING (HVAC) CONTROL SYSTEMS

12/01

PART 1 GENERAL

1.1 REFERENCES1.2 SUBMITTALS1.3 GENERAL REQUIREMENTS

1.3.1 Sole Source Requirement1.3.2 Verification of Dimensions1.3.3 Drawings1.3.4 Component Responsibility

1.3.4.1 Products Furnished But Not Installed Under This Section1.3.4.2 Products Not Furnished or Installed But Integrated With

Work of This Section1.3.4.3 Related Sections

1.3.5 System Description1.3.5.1 General1.3.5.2 Building Temperature Control System1.3.5.3 System Expansion1.3.5.4 DDC/EMCS Requirements1.3.5.5 Web Enabled Requirement

1.4 DELIVERY, STORAGE, PROTECTION1.5 OPERATION MANUAL1.6 MAINTENANCE AND REPAIR MANUAL

PART 2 PRODUCTS

2.1 MATERIAL AND EQUIPMENT2.2 SYSTEM PERFORMANCE2.3 COMMUNICATION2.4 OPERATOR INTERFACE2.5 CONTROLLER SOFTWARE

2.5.1 System Security2.5.2 Scheduling2.5.3 System Coordination2.5.4 Binary Alarms2.5.5 Analog Alarms2.5.6 Alarm Reporting2.5.7 Remote Communication2.5.8 Demand Limiting2.5.9 Maintenance Management2.5.10 Sequencing2.5.11 PID Control2.5.12 Staggered Start2.5.13 Energy Calculations2.5.14 Anti-Short Cycling2.5.15 On/Off Control with Differential2.5.16 Run-time Totalization

SECTION 15950 Page 1 Am #0002


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2.6 BUILDING CONTROLLERS2.6.1 General2.6.2 Communication2.6.3 Environment

2.7 CUSTOM APPLICATION CONTROLLERS2.7.1 General2.7.2 Communication2.7.3 Environment

2.8 INPUT / OUTPUT INTERFACE2.9 POWER SUPPLIES AND LINE FILTERING2.10 GENERAL EQUIPMENT REQUIREMENTS

2.10.1 Electrical and Electronic Devices2.10.2 Standard Signals2.10.3 Ambient Temperature Limits2.10.4 Nameplates, Lens Caps, and Tag Nameplates2.10.5 Year 2000 Compliance

2.11 MATERIALS2.11.1 Tubing

2.11.1.1 Plastic2.11.2 Wiring

2.11.2.1 Terminal Blocks2.11.2.2 Control Wiring for 24-Volt Circuits2.11.2.3 Wiring for 120-Volt Circuits2.11.2.4 Analog Signal Wiring Circuits2.11.2.5 Instrumentation Cable2.11.2.6 Nonconducting Wiring Duct2.11.2.7 Transformers

2.12 ACTUATORS2.12 Valve Actuators2.13 AUTOMATIC CONTROL VALVES

2.13.1 Valve Assembly2.13.2 Butterfly-Valve Assembly2.13.3 Two-Way Valves2.13.4 Three-Way Valves2.13.5 Duct-Coil and Terminal-Unit-Coil Valves2.13.6 Valves for Chilled-Water and Glycol Service2.13.7 Valves for Hot-Water Service

2.14 DAMPERS2.14.1 Damper Assembly

2.14.1.1 Operating Links2.14.1.2 Damper Types

2.14.2 Outside-Air, Return-Air, and Relief-Air Dampers2.15 INSTRUMENTATION

2.15.1 Measurements2.15.2 Temperature Instruments

2.15.2.1 Resistance Temperature Detectors (RTD)2.15.2.2 Continuous-Averaging RTD2.15.2.3 RTD Transmitter

2.15.3 Electronic Air-Flow-Measurement Stations and Transmitters2.15.3.1 Stations2.15.3.2 Transmitters

2.15.4 Differential Pressure Instruments2.15.5 Thermowells2.15.6 Sunshields

2.16 THERMOSTATS2.16.1 Nonmodulating Capillary Thermostats and Aquastats2.16.2 Low-Temperature-Protection Thermostats2.16.3 Modulating Capillary Thermostats

2.17 PRESSURE SWITCHES



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2.17.1 Pressure Switches2.17.2 Differential-Pressure Switches

2.18 INDICATING DEVICES2.18.1 Thermometers

2.18.1.1 Piping System Thermometers2.18.1.2 Piping System Thermometer Stems2.18.1.3 Non-Averaging Air-Duct Thermometers2.18.1.4 Averaging Air-Duct Thermometers2.18.1.5 Accuracy

2.18.2 Pressure Gauges2.18.2.1 Hydronic-System Gauges

2.18.3 Low Differential Pressure Gauges2.19 CONTROL DEVICES AND ACCESSORIES

2.19.1 Function Modules2.19.1.1 Minimum-Position Switch and Temperature-Setpoint Device2.19.1.2 Signal-Inverter Modules2.19.1.3 High-Low Signal Selector2.19.1.4 Sequencer Modules (Dual Limit Alarm)2.19.1.5 Loop Driver Modules

2.19.2 Relays2.19.3 Current Sensing Relays2.19.4 Direct Current (DC) Power Supply2.19.5 Power Line Conditioner (PLC)

2.20 PILOT LIGHTS AND MANUAL SWITCHES2.21 HVAC SYSTEM CONTROL PANELS

2.21.1 Panel Assembly2.21.2 Panel Electrical Requirements2.21.3 Enclosure2.21.4 Mounting and Labeling2.21.5 Wiring and Tubing

2.21.5.1 Panel Wiring2.21.5.2 Panel Terminal Blocks2.21.5.3 Wiring Identification

2.21.6 EMCS Terminal Blocks2.22 ELECTRONIC VARIABLE AIR VOLUME (VAV) TERMINAL UNIT CONTROLS

2.22.1 VAV Terminal Units2.22.2 Terminal-Unit Controls

2.22.2.1 Box Control Device2.22.2.2 Communication and Programming Device

PART 3 EXECUTION

3.1 GENERAL INSTALLATION CRITERIA3.1.1 Examination3.1.2 Coordination3.1.3 Device Mounting Criteria3.1.4 Control System Wiring

3.1.4.1 Power-Line Surge Protection3.1.4.2 Surge Protection for Transmitter and Control Wiring3.1.4.3 Controller Output Loop Impedance Limitation3.1.4.4 Adjustable Setpoints

3.2 CONTROL SYSTEM INSTALLATION3.2.1 Damper Actuators3.2.2 Sensors3.2.3 Room-Instrument Mounting3.2.4 Manual Emergency Fan Shutdown Switches3.2.5 Low-Temperature-Protection Thermostats3.2.6 Averaging-Temperature Sensing Elements3.2.7 Flow Switch



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3.2.8 Indication Devices Installed in Piping and Liquid Systems3.2.9 Wiring3.2.10 Warning Labels

3.2.10.1 Equipment3.2.10.2 Motor Starters and Control Panels

3.2.11 Identification of Hardware and Wiring3.2.12 Controllers3.2.13 Programming

3.2.13.1 Internal Memory3.2.13.2 Point/Object Naming3.2.13.3 Software Programming3.2.13.4 Operator Interface

3.3 CONTROL SEQUENCES OF OPERATION3.4 COMMISSIONING PROCEDURES

3.4.1 General Procedures3.4.1.1 Evaluations3.4.1.2 Item Check3.4.1.3 Weather-Dependent Test Procedures3.4.1.4 Configuration3.4.1.5 Two-Point Accuracy Check3.4.1.6 Insertion, Immersion Temperature3.4.1.7 Averaging Temperature3.4.1.8 Controller Stations3.4.1.9 Controller-Tuning Procedure3.4.1.10 Controller Manual-Tuning Procedure3.4.1.11 Setting the Controller

3.4.2 Unit Heater3.4.3 Single Building Hydronic-Heating with Hot Water Boiler3.4.4 Single Building Hydronic-Cooling with Air-Cooled Chillers3.4.5 Variable Air Volume Control with Heating and Cooling Coils;

Exhaust Fan3.5 BALANCING, COMMISSIONING, AND TESTING

3.5.1 Coordination with HVAC System Balancing3.5.2 Control System Calibration, Adjustments, and Commissioning3.5.3 Performance Verification Test3.5.4 Posted and Panel Instructions3.5.5 Alarms and Interlocks3.5.6 Control System Demonstration and Acceptance

3.5.6.1 Demonstration3.5.6.2 Acceptance

3.6 TRAINING3.6.1 Training-Course Requirements3.6.2 Training-Course Content

-- End of Section Table of Contents --



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SECTION 15950

HEATING, VENTILATING AND AIR CONDITIONING (HVAC) CONTROL SYSTEMS12/01

PART 1 GENERAL

1.1 REFERENCES

The publications listed below form a part of this specification to theextent referenced. The publications are referred to in the text by basicdesignation only.

AIR MOVEMENT AND CONTROL ASSOCIATION (AMCA)

AMCA 500-D (1997) Laboratory Methods of TestingDampers for Rating

AMERICAN SOCIETY FOR TESTING AND MATERIALS (ASTM)

ASTM D 1693 (2000) Environmental Stress-Cracking ofEthylene Plastics

ASTM D 635 (2003) Rate of Burning and/or Extent andTime of Burning of Self-SupportingPlastics in a Horizontal Position

ASME INTERNATIONAL (ASME)

ASME B40.1 (1991) Gauges - Pressure Indicating DialType - Elastic Element

INSTITUTE OF ELECTRICAL AND ELECTRONICS ENGINEERS (IEEE)

IEEE C62.41 (1991; R 1995) Recommended Practice forSurge Voltages in Low-Voltage AC PowerCircuits

MILITARY STANDARDS (MIL-STD)

MIL-STD 810 Shock and Vibration

NATIONAL ELECTRICAL MANUFACTURERS ASSOCIATION (NEMA)

NEMA 250 (2003) Enclosures for Electrical Equipment(1000 Volts Maximum)

NATIONAL FIRE PROTECTION ASSOCIATION (NFPA)

NFPA 70 (2005) National Electrical Code

NFPA 90A (2002) Installation of Air Conditioningand Ventilating Systems



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U.S. NATIONAL ARCHIVES AND RECORDS ADMINISTRATION (NARA)

47 CFR 15 Radio Frequency Devices

UNDERWRITERS LABORATORIES (UL)

UL 508 (1999; Rev thru Dec 2003) IndustrialControl Equipment

UL 916 (1998; Rev thru Nov 2001) Energy

Management Equipment

UL 94 (1996; Rev thru Dec 2003) Tests forFlammability of Plastic Materials forParts in Devices and Appliances

1.2 SUBMITTALS

Government approval is required for submittals with a "G" designation;submittals not having a "G" designation are for information only. Whenused, a designation following the "G" designation identifies the officethat will review the submittal for the Government. The following shall besubmitted in accordance with Section 01330 SUBMITTAL PROCEDURES:

SD-02 Shop Drawings

Drawings; G, AE

Drawings on A1 34 by 22 inch sheets in the form and arrangementshown. The drawings shall use the same abbreviations, symbols,nomenclature and device identifiers shown. Each control-systemelement on a drawing shall have a unique identifier as shown. AllHVAC control system drawings shall be delivered together as acomplete submittal. Drawings shall be submitted for each HVACsystem.

a. HVAC control system drawings shall include the following:

Sheet One: Control Legend and General Notes.

Sheet Two: General and Scheduling Notes.

Sheet Three: Heating Water Controls and Schematic.

Sheet Four: Chilled Water Controls and Schematic.

Sheet Five: VAV AHU Return Controls and Schematic.

Sheet Six: System 01 Sequence of Operation.

Sheet Seven: Exhaust Fans and Control Schematic.

b. An HVAC control system drawing index showing the name and numberof the building, military site, State or other similardesignation, and Country. The drawing index shall list all HVACcontrol system drawings, including the drawing number, sheetnumber, drawing title, and computer filename when used.

c. An HVAC control system legend showing generic symbols and the name



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of devices shown on the HVAC control system drawings.

d. A valve schedule showing each valve's unique identifier, size,flow coefficient (Cv), pressure drop at specified flow rate,spring range, positive positioner range, actuator size, close-offpressure data, dimensions, and access and clearance requirementsdata.

e. A damper schedule showing each damper and actuator's identifier,nominal and actual sizes, orientation of axis and frame, directionof blade rotation, spring ranges, operation rate, positivepositioner ranges, locations of actuators and damper end switches,arrangement of sections in multi-section dampers, and methods ofconnecting dampers, actuators, and linkages. The damper scheduleshall include the maximum leakage rate at the operatingstatic-pressure differential. The damper schedule shall containactuator selection data supported by calculations of the torquerequired to move and seal the dampers, access and clearancerequirements.

f. An HVAC control system equipment schedule showing the controlloop, device unique identifier, device function, setpoint, inputrange, and additional important parameters (i.e. output range).

g. HVAC control system sequences of operation and applicableprogramming code.

h. An HVAC control system ladder diagram showing all relays,contacts, pilot lights, switches, fuses and starters connected tothe control system.

i. HVAC control panel arrangement drawings showing both side andfront views of the panel. The drawing shall show panel andmounting dimensions.

j. HVAC control panel cross-section drawings showing mounting railsand standoffs for devices.

k. HVAC control panel inner door layout drawings showing both frontand rear views of the inner door. The drawings shall show devicelocations, labels, nameplate legends, and fabrication details.

l. HVAC control panel back-panel layout drawings showing devicelocations, labels, nameplate legends, terminal block layout,fabrication details, and enclosure operating temperature-risecalculations.

m. HVAC control system wiring diagrams showing functional wiringdiagrams of the interconnection of conductors and cables to HVACcontrol panel terminal blocks and to the identified terminals ofdevices, starters and package equipment. The wiring diagramsshall show all necessary jumpers and ground connections. Thewiring diagrams shall show the labels of all conductors. Sourcesof power required for HVAC control systems and forpackaged-equipment control systems shall be identified back to thepanel-board circuit breaker number, HVAC system control panel,magnetic starter, or packaged equipment control circuit. Eachpower supply and transformer not integral to a controller,starter, or packaged equipment shall be shown. The connected



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volt-ampere load and the power supply volt-ampere rating shall beshown.

SD-03 Product Data

HVAC Control System

Service Organizations

Six copies of a list of service organizations qualified toservice the HVAC control system. The list shall include theservice organization name, address, technical point of contact andtelephone number, and contractual point of contact and telephonenumber.

Equipment Compliance Booklet

An HVAC control system equipment compliance booklet (ECB) inindexed booklet form with numbered tabs separating the informationon each device. It shall consist of, but not be limited to, datasheets and catalog cuts which document compliance of all devicesand components with the specifications. The ECB shall be indexedin alphabetical order by the unique identifiers. Devices andcomponents which do not have unique identifiers shall follow thedevices and components with unique identifiers and shall beindexed in alphabetical order according to their functional name.The ECB shall include a bill of materials for each HVAC controlsystem. The bill of materials shall function as the table ofcontents for the ECB and shall include the device's uniqueidentifier, device function, manufacturer, model/part/catalognumber used for ordering, and tab number where the deviceinformation is located in the ECB.

Commissioning Procedures

a. Six copies of the HVAC control system commissioningprocedures, in indexed booklet form, 60 days prior to thescheduled start of commissioning. Commissioning procedures shallbe provided for each HVAC control system, and for each type ofterminal-unit control system. The commissioning procedures shallreflect the format and language of this specification, and referto devices by their unique identifiers as shown. Thecommissioning procedures shall be specific for each HVAC system,and shall give detailed step-by-step procedures for commissioningof the system.

b. Commissioning procedures documenting detailed,product-specific set-up procedures, configuration procedures,adjustment procedures, and calibration procedures for each device.

Where the detailed product-specific commissioning procedures areincluded in manufacturer supplied manuals, reference may be madein the HVAC control system commissioning procedures to the manuals.

c. Commissioning procedures documenting controller configurationchecksheets for each controller listing all configurationparameters, dip switch and jumper settings, and initialrecommended P, I and D values. The configuration parameters shallbe listed in the order in which they appear during theconfiguration process. Each configuration parameter shall be



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noted as being: set per specs with no field adjustment required,set per specs but field adjustable, or not applicable.

d. Commissioning procedures showing a time clock configurationchecksheet listing all parameters, and switch settings. Theparameters shall be listed in the order which they appear duringthe setup process.

e. An HVAC control system commissioning procedures equipment listthat lists the equipment to be used to accomplish commissioning.The list shall include manufacturer name, model number, equipmentfunction, the date of the latest calibration, and the results ofthe latest calibration.

Performance Verification Test Procedures

Six copies of the HVAC control system performance verificationtest procedures, in indexed booklet form, 60 days before theContractor's scheduled test dates. The performance verificationtest procedures shall refer to the devices by their uniqueidentifiers as shown, shall explain, step-by-step, the actions andexpected results that will demonstrate that the HVAC controlsystem performs in accordance with the sequences of operation. AnHVAC control system performance verification test equipment listshall be included that lists the equipment to be used duringperformance verification testing. The list shall includemanufacturer name, model number, equipment function, the date ofthe latest calibration, and the results of the latest calibration.

Training Course Requirements

Six copies of HVAC control system training course material 30 daysprior to the scheduled start of the training course. The trainingcourse material shall include the operation manual, maintenanceand repair manual, and paper copies of overheads used in thecourse. An HVAC control system training course, in outline form,with a proposed time schedule. Approval of the planned trainingschedule shall be obtained from the Government at least 60 daysprior to the start of the training.

SD-06 Test Reports

Commissioning Report; G, AO

Six copies of the HVAC control system commissioning report, inindexed booklet form, within 30 days after completion of thesystem commissioning. The commissioning report shall include datacollected during the HVAC control system commissioning and shallfollow the format of the commissioning procedures. Thecommissioning report shall include all controller and time clockchecksheets with final values listed for all parameters,setpoints, P, I, D setting constants, calibration data for alldevices, and results of adjustments.

Performance Verification Test; G, AO

Six copies of the HVAC control system performance verificationtest report, in indexed booklet form, within 30 days aftercompletion of the test. The HVAC control system performance



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verification test report shall include data collected during theHVAC control system performance verification test. The originalcopies of data gathered during the performance verification testshall be turned over to the Government after Government approvalof the test results.

An ASME Air-Storage Tank Certificate for each storage tank.

SD-10 Operation and Maintenance Data

Operation Manual; G, AO

Maintenance and Repair Manual; G, AO

Six copies of the HVAC control system operation manual and HVACcontrol system maintenance and repair manual for each HVAC controlsystem 30 days before the date scheduled for the training course.

1.3 GENERAL REQUIREMENTS

1.3.1 Sole Source Requirement

The Control System shall be procured by the construction Contractor fromDelta Controls/Setpoint Systems Corporation. Notwithstanding Section 00700Contract Clauses clause "FAR 52.236-5, Material and Workmanship", alldirect digital controllers, software, software programming, web enabledsoftware and programming, and graphic generation shall beprocured/installed only by Delta Controls/ Setpoint Systems Corporation inorder that system installed is fully integrated and connected to existingBAFB Delta Controls EMCS. No other product will be acceptable. TheCompetition Advocate authorizes sole source procurement.

Delta Controls SETPOINT Systems Corp2680 South Platte River DriveDenver, CO 80223Contact: Neil Gifford

1.3.2 Verification of Dimensions

The Contractor shall become familiar with all details of the work, shallverify all dimensions in the field, and shall advise the ContractingOfficer of any discrepancy before performing any work.

1.3.3 Drawings

Because of the small scale of the drawings, it is not possible to indicateall offsets, fittings, and accessories that may be required. TheContractor shall investigate the mechanical, electrical, and finishconditions that could affect the work to be performed, shall arrange suchwork accordingly, and shall furnish all work necessary to meet suchconditions.

1.3.4 Component Responsibility

1.3.4.1 Products Furnished But Not Installed Under This Section

a. Section 15181 - Chilled Water Piping and Accessories & 15569A - WaterHeating; Gas; Up to 20 MBTUH



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(1) Control Valves(2) Flow Switches(3) Temperature Sensor Wells and Sockets

b. Section 15895 - Air Supply, Distribution, Ventilation, and ExhaustSystems

(1) Automatic Control Dampers(2) Airflow Stations(3) Terminal Unit Controls

1.3.4.2 Products Not Furnished or Installed But Integrated With Work ofThis Section

a. Section 13851 - Fire Detection and Alarm System Addressable

(1) Duct Smoke Detectors

b. Section 15181 - Chilled Water Piping and Accessories & Section 15620A -Liquid Chillers

(1) Chiller Controls

c. Section 15569 - Water Heating; Gas; Up to 20 MBTUH

(1) Boiler Controls

d. Section 15895 - Air Supply, Distribution, Ventilation, and ExhaustSystems

(1) Air Handling Equipment - Adjustable Frequency Drives(2) VAV Terminal Units - Cross-flow Velocity Sensors

1.3.4.3 Related Sections

The General Conditions of the Contract, Supplementary Conditions, andGeneral Requirements are a part of this section and shall be used inconjunction with this section as a part of the contract documents.Contractor is bound by provisions of Unified Facilities GuideSpecifications (UFGS) Division 00 and Division 01.

The following sections constitute related work:

a. Section 13851 - Fire Detection and Alarm System Addressable

b. Section 15181 - Chilled Water Piping Systems

c. Section 15569 - Water Heating; Gas; Up to 20 MBTUH

d. Section 15620 - Liquid Chillers

e. Section 15700 - Unitary Heating and Cooling Equipment

f. Section 15895 - Air Supply, Distribution, Ventilation, and ExhaustSystems

g. Section 15990 - Testing, Adjusting, and Balancing of HVAC Systems

h. Section 15995 - Commissioning of HVAC Systems



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i. Not Used

j. Section 16442 - Switchboards and Switchgear

k. Section 16402 - Interior Distribution System

1.3.5 System Description

1.3.5.1 General

The control system shall be as shown and consist of a high-speed,peer-to-peer network of Direct Digital Controllers (DDC) and an operatorworkstation residing and communicating on a Native BACnet per ASHRAEStandard 135-1995. The operator workstation shall be a personal computer(PC) with a color monitor, mouse, keyboard, and printer. The PC will allowa user to interface with the network via multi-tasking dynamic colorgraphics. Each mechanical system, building floor plan, and control devicewill be depicted by point-and-click graphics. A modem shall be provided forremote access to the network and for paging the operators when an alarmoccurs.

All new unit controllers shall be of the direct digital control (DDC) typeand shall be interconnected. Programming shall reside at the individualDDC controllers with the capability to modify programming through thecontroller or as indicated elsewhere.

The Building Automation System (BAS) shall consist of the individual DDCcontrollers and the associated control points and accessories, an EMCScontrol panel (DTC cabinet), and a front-end operator station (personalcomputer) along with all necessary graphic software and programming.Capability for programming the entire BAS, including the individual DDCcontrollers, shall reside at the EMCS control panel through the operatorstation. Loss of communication between the EMCS control panel andindividual DDC controllers shall not affect the operation of the individualDDC controllers.

All new controls shall be compatible with the existing Base EnergyMonitoring and Control System (EMCS). The BAS shall be linked to and shallbe part of the EMCS. Capability for programming the entire BAS shallreside at the EMCS. Loss of communication between the EMCS and the BASshall not affect the operation of the BAS.

1.3.5.2 Building Temperature Control System

All HVAC functions in the HVAC system shall be controlled and monitored bythe EMCS. The design of the control system for the HVAC equipment shall bein accordance with this section. The system will directly control eachair-handling unit by maintaining discharge air temperature, duct andbuilding static pressure, and outside air economizer control. The hotwater boiler and pumping system will operate to reset the hot water supplytemperature based upon outside air temperature and pump lead-lag control.The chiller and chilled water pump system will operate based on outside airtemperature and pump lead/lag control. In addition, each terminal variableair volume (VAV) unit will be controlled by individual DDC zone controllersnetworked with the primary DDC panels. Each zone controller will providefor occupied/unoccupied mode of operation by individual zone. For energyconservation, the system will be programmed for optimal Start/Stop of theair-handling units and hot and chilled water systems, night setback, VAV



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terminal regulated air volume, night purge control, and other modes ofoperation as described in the sequences of operation.

1.3.5.3 System Expansion

The system will provide for future expansion to include monitoring of thecard access, fire alarm, utility meters and lighting control systems. Thecontrol system serving the facility shall be a system expansion of, andsources to match, the BAFB EMCS. All services, materials, equipment,hardware, and software necessary to install the EMCS expansion and forinterfacing to the BAFB EMCS system shall be provided. At the completion ofthe system expansion, all the new control panels and input and outputcontrol points/devices shall be fully integrated into BAFB EMCS system.The building shall be prepped for EMCS in accordance with requirementsavailable from Setpoint Systems Incorporated.

1.3.5.4 DDC/EMCS Requirements

Local Direct Digital Control (DDC) panel(s) located in each facilitymechanical room(s) shall control all mechanical systems and equipment. TheDDC design shall be provided using this section. To facilitate maintenanceand to allow manual starting and stopping of equipment by maintenancepersonnel, a hard-wired Hand-Off-Automatic (HOA) control switch shall beprovided for each major piece of equipment including: (air handling unitfans, pumps, exhaust fans, etc.) This will provide an override for theautomatic DDC start and stop functions.

1.3.5.5 Web Enabled Requirement

Provide access to the control system via the internet. The control systemshall be supplied with a complete web enabled package.

1.4 DELIVERY, STORAGE, PROTECTION

Products shall be stored with protection from the weather temperaturevariations, dirt and dust, and other contaminants, within thestorage-condition limits published by the equipment manufacturer. Dampersshall be stored so that seal integrity, blade alignment and frame alignmentare maintained.

Temperature control contractor shall protect all work and material fromdamage by its work or employees, and shall be liable for all damage caused.

Temperature control contractor shall be responsible for its work andequipment until finally inspected, tested, and accepted. Protect anymaterials not immediately installed. Close all open ends of work withtemporary covers or plugs during storage and construction to prevent entryof foreign objects.

1.5 OPERATION MANUAL

An HVAC control system operation manual for each HVAC control system, inindexed booklet form, shall be provided. The operation manual shallinclude the HVAC control system sequence of operation, and procedures forthe HVAC system start-up, operation and shut-down. The operation manualshall include as-built HVAC control system detail drawings. The operationmanual shall include the as-built controller configuration checksheets, theas-built time clock configuration checksheet, the HVAC control system frontpanel description, the procedures for changing HVAC system controller



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setpoints, the procedures for gaining manual control of processes, the timeclock manufacturer's manual control of processes, the time clockmanufacturer's operation manual, and the controller manufacturer'soperation manual.

a. The HVAC control system front panel description shall explain themeaning and use of the lights, switches, gauges, and controllerdisplays located in the front panel. Each light, switch, gauge,and display described shall be numbered and referenced to adrawing of the front panel.

b. The procedures for changing HVAC system controller setpoints shalldescribe the step-by-step procedures required to change: theprocess variable setpoints of controllers, the alarm setpoints ofcontrollers, the controller bias settings, and controller setpointreset schedules.

c. The procedures for gaining manual control of processes shalldescribe step-by-step procedures required to gain manual controlof devices and manually adjust their positions.

1.6 MAINTENANCE AND REPAIR MANUAL

An HVAC control system maintenance and repair manual for each HVAC controlsystem, in indexed booklet form in hardback binders, shall be provided.The maintenance and repair manual shall include the routine maintenancechecklist, a recommended repair methods list, a list of recommendedmaintenance and repair tools, the qualified service organization list, theas-built commissioning procedures and report, the as-built performanceverification test procedures and report, and the as-built equipment databooklet (EDB).

a. The routine maintenance checklist shall be arranged in a columnarformat. The first column shall list all devices listed in theequipment compliance booklet (ECB), the second column shall statethe maintenance activity or state no maintenance required, thethird column shall state the frequency of the maintenanceactivity, and the fourth column for additional comments orreference.

b. The recommended repair methods list shall be arranged in acolumnar format and shall list all devices in the equipmentcompliance booklet (ECB) and state the guidance on recommendedrepair methods, either field repair, factory repair, or whole-itemreplacement.

c. The as-built equipment data booklet (EDB) shall include theequipment compliance booklet (ECB) and all manufacturer supplieduser manuals and information.

d. If the operation manual and the maintenance and repair manual areprovided in a common volume, they shall be clearly differentiatedand separately indexed.

PART 2 PRODUCTS

2.1 MATERIAL AND EQUIPMENT

Material and equipment shall be new standard products provided by Delta



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Controls by Setpoint Systems Corporation. The standard products shall havebeen in satisfactory commercial or industrial use for 2 years prior to bidopening. The 2-year use shall include applications of equipment andmaterials under similar circumstances and of similar size. The 2 yearsexperience must be satisfactorily completed by a product which has beensold or is offered for sale on the commercial market throughadvertisements, manufacturers' catalogs, or brochures. Products havingless than a 2-year field service record will be acceptable if a certifiedrecord of satisfactory field operation, for not less than 6000 hoursexclusive of the manufacturer's factory tests, can be shown. The equipmentitems shall be supported by a service organization. The Contractor shallsubmit a certified list of qualified permanent service organizations andqualifications. These service organizations shall be reasonably convenientto the equipment on a regular and emergency basis during the warrantyperiod. Spare parts shall be available for at least five years aftercompletion of this contract.

2.2 SYSTEM PERFORMANCE

Performance Standards. The system shall conform to the following:

a. Graphic Display. The system shall display a graphic with 20 dynamicpoints/objects with all current data within 10 seconds.

b. Graphic Refresh. The system shall update a graphic with 20 dynamicpoints/objects with all current data within 8 seconds.

c. Object Command. The maximum time between the command of a binaryobject by the operator and the reaction by the device shall be lessthan 2 seconds. Analog objects should start to adjust within 2 seconds.

d. Object Scan. All changes of state and change of analog values will betransmitted over the high-speed Ethernet network such that any dataused or displayed at a controller or workstation will have been currentwithin the previous 60 seconds.

e. Alarm Response Time. The maximum time from when an object goes intoalarm to when it is annunciated at the workstation shall not exceed 45seconds.

f. Program Execution Frequency. Custom and standard applications shall becapable of running as often as once every 5 seconds. The Contractorshall be responsible for selecting execution times consistent with themechanical process under control.

g. Performance. Programmable controllers shall be able to execute DDC PIDcontrol loops at a selectable frequency of at least once per second.The controller shall scan and update the process value and outputgenerated by this calculation at this same frequency.

h. Multiple Alarm Annunciations. All workstations on the network mustreceive alarms within 5 seconds of each other.

i. Reporting Accuracy. The system shall report all values with anend-to-end accuracy as listed or better than those listed in Table 3-1.

j. Stability of Control. Control loops shall maintain measured variableat setpoint within the tolerances listed in Table 3-2.



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Reporting Accuracy Table

Measured Variable Reported Accuracy

Space Temperature 1FDucted Air 1FOutside Air 2FDewpoint 3FWater Temperature 1FDelta-T 0.25FRelative Humidity 5% RHWater Flow 5% of full scale

Airflow (terminal) 10% of full scale (see Note 1) Airflow (measuring stations) 5% of full scale Air Pressure (ducts) 0.1 "W.G. Air Pressure (space) 0.01 "W.G.

Water Pressure 2% of full scale (see Note 2)Electrical 5% of reading (see Note 3)

(A, V, W, Power factor)Carbon Monoxide (CO) 5% of readingCarbon Dioxide (CO2) 50 ppm

Note 1: 10%-100% of scaleNote 2: For both absolute and differential pressureNote 3: Not including utility-supplied meters

Control Stability and Accuracy Table

Controlled Variable Control Accuracy Range of Medium

Air Pressure 0.2" w.g. 0-6" w.g.0.01" w.g. -0.1 to 0.1" w.g.

Airflow 100 cfmTemperature 1.0FHumidity 5% RHFluid Pressure 1.5 psi 1-150 psi

1.0" w.g. 0-50"w.g. differential

2.3 COMMUNICATION

a. All control products provided for this project shall comprise a NativeBACnet internetwork. Communication involving control components (i.e.,all types of controllers and operator interfaces) shall conform to

ANSI/ASHRAE Standard 135-1995, BACnet.

b. Each BACnet device shall operate on the Native BACnet DataLink/Physical layer protocol specified for that device as defined inthis section.

c. The Contractor shall provide all communication media, connectors,repeaters, bridges, hubs, and routers necessary for the internetwork.

d. All controllers shall have a communication port for connections withthe operator interfaces using the Native BACnet Data Link/ Physicallayer protocol.

e. A device on the internetwork shall be provided with a 28,800-baud modemthat will allow for remote operator interface using the Native BACnetPTP Data Link/ Physical layer protocol. Remote operator interface via



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this modem shall allow for communication with any and all controllerson this network as described in Paragraph F below.

f. Communication services over the internetwork shall result in operatorinterface and value passing that is transparent to the internetworkarchitecture as follows:

1. Connection of an operator interface device to any one controlleron the internetwork will allow the operator to interface with allother controllers as if that interface were directly connected tothe other controllers. Data, status information, reports, systemsoftware, custom programs, etc., for all controllers shall beavailable for viewing and editing from any one controller on theinternetwork.

2. All database values (e.g., objects, software variables, customprogram variables) of any one controller shall be readable by anyother controller on the internetwork. A controller shallautomatically perform this value passing when a reference to anobject name not located in that controller is entered into thecontroller's database. An operator/installer shall not berequired to set up any communication services to performinternetwork value passing.

g. The time clocks in all controllers shall be automatically synchronizeddaily via the internetwork. An operator change to the time clock inany controller shall be automatically broadcast to all controllers onthe internetwork.

2.4 OPERATOR INTERFACE

a. Furnish one PC-based workstation. Workstation shall be able to accessall information in the system. These workstations shall reside on thesame Ethernet protocol network as the Building Controllers.

b. Workstation information access shall use the BACnet protocol.Communication shall use the ISO 8802-3 (Ethernet) Data Link/ Physicallayer protocol.

c. Hardware for workstation shall consist of the following:

1. Furnish IBM compatible PCs as shown. The CPU shall be a minimum ofan Intel Pentium and operate at a minimum of 400 MHz. A minimumof 16 megabytes of RAM, one 1.44 megabyte 3.5 inch diskette drive,CD drive and an 800-megabyte hard disk with a minimum access timeof 12 milliseconds shall be provided. A two-button mouse alsowill be provided. Furnish all required serial, parallel, andnetwork communication ports, and all cables for proper systemoperation. The PC shall have a minimum of a 17" VGA monitor.

2. Furnish one auto-dial telephone modem per workstation andassociated cables for communication to remote buildings andworkstations. The modem shall transmit at a minimum of 28,800baud, and communicate over voice-grade telephone lines and complyto BACnet data link Point-To-Point.

3. Each workstation shall have one printer, with tractor feed, andassociated cables. Each printer shall be capable of a minimum 160characters per second operation and be compatible with standard



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parallel or serial communication. Supply one box of minimum 2,000sheets of printer paper and two printer ribbons or cartridges.

4. The workstation shall use the Read (Initiate) and Write (Execute)Services as defined in clauses 15.5 and 15.8, respectively, of

ASHRAE Standard 135-95, to communicate with BACnet objects in theinternetwork.

Operator Workstation BACnet Services

BACnet Services Description Initiate Execute Acknowledge Alarms x x

Confirmed COV Notification x xConfirmed Event Notification x xGet Alarm Summary x xGet Enrolment Summary x xSubscribe COV x xUnconfirmed COV Notification x xUnconfirmed Event Notification x x

Atomic Read File x x Atomic Write File x x Add List Element --- x

Remove List Element --- xCreate Object x xDelete Object x xRead Property x xRead Property Multiple x xWrite Property x xRead Range x xWrite Property Multiple x xDevice Communication Control x xConfirmed Private Transfer x xUnconfirmed Private Transfer x xReinitialize Device x ---Time Synchronization x ---Who-Has --- xI-Have x ---Who-Is x xI-Am x x

5. BACnet Functional Groups. The Operator Workstation shall supportthe following BACnet functional groups: Clock, Event Initiation,Event Response, COV Event Response, Files, Reinitialize, DeviceCommunication, Time Master and Router.

6. The Operator Workstation shall have the capability to create,delete and support the following BACnet Objects:

(a) ANALOG INPUT, ANALOG OUTPUT AND ANALOG VALUE: These objectsshall have the following writeable properties: Object Name; ObjectValue; Description; COV Increment; Out of Service and Units. Inaddition, these objects shall support the properties: Device type;Reliability; Min./Max. Values; Update Interval and Resolution.

(b) BINARY INPUT, BINARY OUTPUT AND BINARY VALUE: These objectsshall have the following writeable properties: Object Name; ObjectValue; Description; Polarity; Default Value; Min On/Off and Out ofService. In addition, these objects shall support the properties:Device Type; Reliability; Active/Inactive Texts; Update Interval;



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delete, or change dynamic objects on a graphic. Dynamic objectsshall include analog and binary values, dynamic text, static text,and animation files. Graphics shall have the ability to showanimation by shifting image files based on the status of theobject.

3. Custom Graphics. Custom graphic files shall be created with theuse of a graphics generation package furnished with the system.The graphics generation package shall be a graphically basedsystem that uses the mouse to create and modify graphics that aresaved in industry standard formats such as PCX, TIFF, and GEM.The graphics generation package also shall provide the capabilityof capturing or converting graphics from other programs such asDesigner or AutoCAD.

4. Graphics Library. Furnish a complete library of standard HVACequipment graphics such as chillers, boilers, air handlers,terminals, fan coils, and unit ventilators. This library alsoshall include standard symbols for other equipment including fans,pumps, coils, valves, piping, dampers, and ductwork. The libraryshall be furnished in a file format compatible with the graphicsgeneration package program. Graphics shall be created bydrag-and-drop selection of graphic symbols and drag-and-link withBACnet objects with dynamic and interactive display fields.

5. Multilingual. Software shall support on-line operating languageselection with on the fly toggling capabilities between English,Spanish, French, German, Chinese, etc.

6. Dynamic Data Exchange (DDE). Software shall support dynamic datasharing with other Windows-based programs for third party add-onfunctionality e.g. preventative maintenance, tenant billing, etc.

e. System Applications. Each workstation shall provide operator interfaceand off line storage of system information. Provide the followingapplications at each workstation:

1. Automatic System Database Save and Restore. Each workstationshall store on the hard disk a copy of the current database ofeach Building Controller. This database shall be updated whenevera change is made in any system panel. The storage of this datashall be automatic and not require operator intervention. In theevent of a database loss in a building management panel, the firstworkstation to detect the loss shall automatically restore thedatabase for that panel. The operator may disable this capability.

2. Manual Database Save and Restore. A system operator with theproper password clearance shall be able to save the database fromany system panel. The operator also shall be able to clear apanel database and manually initiate a download of a specifieddatabase to any panel in the system.

3. System Configuration. The workstation software shall provide amethod of configuring the system. This shall allow for futuresystem changes or additions by users under proper passwordprotection.

4. On-Line Help. Provide a context-sensitive, on-line help system toassist the operator in operating and editing the system. On- line



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help shall be available for all applications and shall provide therelevant data for that particular screen. Additional helpinformation shall be available through the use of hypertext.

5. Security. Each operator shall be required to log on to the systemwith a user name and password in order to view, edit, add, ordelete data. System security shall be selectable for eachoperator. The system supervisor shall have the ability to setpasswords and security levels for all other operators. Eachoperator password shall be able to restrict the functionsaccessible to viewing and/or changing each system application,editor, and object. Each operator shall automatically be loggedoff of the system if no keyboard or mouse activity is detected.This auto logoff time shall be set per operator password. Allsystem security data shall be stored in an encrypted format.

6. System Diagnostics. The system shall automatically monitor theoperation of all workstations, printers, modems, networkconnections, building management panels, and controllers. Thefailure of any device shall be annunciated to the operator.

7. Alarm Processing. Any object in the system shall be configurableto alarm in and out of normal state. The operator shall be ableto configure the alarm limits, alarm limit differentials, states,and reactions for each object in the system.

8. Alarm Messages. Alarm messages shall use the English languagedescriptor for the object in alarm, in such a way that theoperator will be able to recognize the source, location, andnature of the alarm without relying upon acronyms or othermnemonics.

9. Alarm Reactions. The operator shall be able to determine (byobject) what if any actions are to be taken during an alarm.

Actions shall include logging, printing, starting programs,displaying messages, dialing out to remote stations, paging,providing audible annunciation, or displaying specific systemgraphics. Each of these actions shall be configurable byworkstation and time of day. An object in alarm that has not beenacknowledged within an operator-specified time period shall bemoved to a higher level of priority. The actions for that levelwill then be followed.

10. Trend Logs. The operator shall be able to define a custom trendlog for any data object in the system. This definition shallinclude change-of-value digital, change-of-value analog, timeinterval, start time, and stop time. Trend data shall be sampledand stored on the Building Controller panel, and be archivable onthe hard disk and be retrievable for use in spreadsheets andstandard database programs.

11. Alarm and Event Log. The operator shall be able to view allsystem alarms and change of states from any location in thesystem. Events shall be listed chronologically. An operator withthe proper security level may acknowledge and clear alarms. Allthat have not been cleared by the operator shall be archived tothe hard disk on the workstation.

12. Object and Property Status and Control. Provide a method for the



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operator to view, and edit if applicable, the status of any objectand property in the system. The status shall be available bymenu, on graphics, or through custom programs.

13. Clock Synchronization. The real-time clocks in all buildingcontrol panels and workstations shall be using the BACnet TimeSynchronization service. The system also shall be able toautomatically synchronize all system clocks daily from anyoperator-designated device in the system. The system shallautomatically adjust for daylight savings and standard time, ifapplicable.

14. Reports and Logs. Provide a reporting package that allows theoperator to select, modify, or create reports. Each report shallbe definable as to data content, format, interval, and date.Report data shall be archivable on the hard disk for historicalreporting. Provide the ability for the operator to obtainreal-time logs of all objects by type or status (e.g., alarm,lockout, normal). Reports and logs shall be stored on the PC harddisk in a format that is readily accessible by other standardsoftware applications, including spreadsheets and word processing.

Reports and logs shall be readily printed to the system printerand shall be set to be printed either on operator command or at aspecific time each day.

15. Standard Reports. The following standard system reports shall beprovided for this project. Provide ability for the Owner toreadily customize these reports for this project.

(a) Electrical Meter Report: Provide a monthly report showingthe daily electrical consumption and peak electrical demand foreach building meter. Provide an annual (12-month) summary reportshowing the monthly electrical consumption and peak demand foreach meter.

(b) Gas Meter Report: Provide a monthly report showing the dailynatural gas consumption for each meter. Provide an annual(12-month) report that shows the monthly consumption for eachmeter.

(c) Weather Data Report: Provide a monthly report showing thedaily minimum, maximum, and average outdoor air temperature - aswell as the number of heating and cooling degree days for eachday. Provide an annual (12-month) report showing the minimum,maximum, and average outdoor air temperature for the month - aswell as the number of heating and cooling degree-days for themonth.

(d) Tenant Override Reports: Provide a monthly report showingthe daily total time in hours that each tenant has requestedafter-hours HVAC and lighting services. Provide an annual summaryreport that shows the override usage on a monthly basis.

(e) All Objects: All system (or sub-system) objects and theircurrent values.

(f) Alarm Summary: All current alarms (except those in alarmlockout).



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(g) Disabled Objects: All objects that are disabled.

(h) Alarm Lockout Objects: All objects in alarm lockout (whethermanual or automatic).

(i) Alarm Lockout Objects in Alarm: All objects in alarm lockoutthat are currently in alarm.

(j) Logs:

(1) Alarm History

(2) System Messages

(3) System Events

(4) Trends

(k) Custom Reports: Provide the capability for the operator toeasily define any system data into a daily, weekly, monthly, orannual report. These reports shall be time and date stamped, andshall contain a report title and the name of the facility.

f. Workstation Applications Editors. Each PC workstation shall supportediting of all system applications. Provide editors for eachapplication at the PC workstation. The applications shall bedownloaded and executed at one or more of the controller panels.

1. Controller. Provide a full-screen editor for each type ofapplication that shall allow the operator to view and change theconfiguration, name, control parameters, and setpoints for allcontrollers.

2. Scheduling. An editor for the scheduling application shall beprovided at each workstation. Provide a method of selecting thedesired schedule and month. This shall consist of a monthlycalendar for each schedule. Exception schedules and holidaysshall be shown clearly on the calendar. Provide a method forallowing several related objects to follow a schedule. The startand stop times for each object shall be adjustable from thismaster schedule. Schedules shall be easy to copy to other objectsand/or dates.

3. Custom Application Programming. Provide the tools to create,modify, and debug custom application programming. The operatorshall be able to create, edit, and download custom programs at thesame time that all other system applications are operating. Thesystem shall be fully operable while custom routines are edited,compiled, and downloaded. The programming language shall have thefollowing features:

(a) The language shall be English language oriented, be based onthe syntax of BASIC, FORTRAN, C, or PASCAL, and allow forfree-form programming (i.e., not column-oriented or "fill in theblanks"). Alternatively, the programming language can begraphically-based using function blocks as long as blocks areavailable that directly provide the functions listed below, andthat custom or compound function blocks can be created.



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(b) A full-screen character editor/programming environment shallbe provided. The editor shall be cursor/mouse-driven and allowthe user to insert, add, modify, and delete custom programmingcode. It also shall incorporate word processing features such ascut/paste and find/replace.

(c) The programming language shall allow independently executingprogram modules to be developed. Each module shall be able toindependently enable and disable other modules.

(d) The editor/programming environment shall have adebugging/simulation capability that allows the user to stepthrough the program and observe any intermediate values and/orresults. The debugger also shall provide error messages forsyntax and execution errors.

(e) The programming language shall support conditional statements(IF/THEN/ELSE/ELSE-IF) using compound Boolean (AND, OR, and NOT)and/or relations (EQUAL, LESS THAN, GREATER THAN, NOT EQUAL)comparisons.

(f) The programming language shall support floating pointarithmetic using the following operators: +, -, /, x, square root,and x-to-the-y-power. The following mathematical functions alsoshall be provided: natural log, log, trigonometric functions(sine, cosine, etc.), absolute value, and minimum/maximum valuefrom a list of values.

(g) The programming language shall have predefined variables thatrepresent time of day, day of the week, month of the year, and thedate. Other predefined variables shall provide elapsed time inseconds, minutes, hours, and days. These elapsed time variablesshall be able to be reset by the language so that interval-timingfunctions can be stopped and started within a program. Valuesfrom all of the above variables shall be readable by the languageso that they can be used in a program for such purposes as IF/THENcomparisons, calculations, etc.

(h) The language shall be able to read the values of thevariables and use them in programming statement logic,comparisons, and calculations.

(i) The programming language shall have predefined variablesrepresenting the status and results of the System Software, andshall be able to enable, disable, and change the setpoints of theSystem Software described below.

2.5 CONTROLLER SOFTWARE

Furnish the following applications software for building and energymanagement. All software applications shall reside and operate in thesystem controllers. Editing of applications shall occur at the operatorworkstation.

2.5.1 System Security

a. User access shall be secured using individual security passwords anduser names.



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b. Passwords shall restrict the user to the objects, applications, andsystem functions as assigned by the system manager.

c. User Log On/Log Off attempts shall be recorded.

d. The system shall protect itself from unauthorized use by automaticallylogging off following the last keystroke. The delay time shall beuser-definable.

2.5.2 Scheduling

Provide the capability to schedule each object or group of objects in thesystem. Each schedule shall consist of the following:

a. Weekly Schedule. Provide separate schedules for each day of the week.Each of these schedules should include the capability for start, stop,optimal start, optimal stop, and night economizer. Each schedule mayconsist of up to 10 events. When a group of objects are scheduledtogether, provide the capability to adjust the start and stop times foreach member.

b. Exception Schedules. Provide the ability for the operator to designateany day of the year as an exception schedule. Exception schedules maybe defined up to a year in advance. Once an exception schedule isexecuted, it will be discarded and replaced by the standard schedulefor that day of the week.

c. Holiday Schedules. Provide the capability for the operator to defineup to 99 special or holiday schedules. These schedules may be placedon the scheduling calendar and will be repeated each year. Theoperator shall be able to define the length of each holiday period.

2.5.3 System Coordination

Provide a standard application for the proper coordination of equipment.This application shall provide the operator with a method of groupingtogether equipment based on function and location. This group may then beused for scheduling and other applications.

2.5.4 Binary Alarms

Each binary object shall be set to alarm based on the operator-specifiedstate. Provide the capability to automatically and manually disablealarming.

2.5.5 Analog Alarms

Each analog object shall have both high and low alarm limits. Alarmingmust be able to be automatically and manually disabled.

2.5.6 Alarm Reporting

The operator shall be able to determine the action to be taken in the eventof an alarm. Alarms shall be routed to the appropriate workstations basedon time and other conditions. An alarm shall be able to start programs,print, be logged in the event log, generate custom messages, and displaygraphics.



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2.5.7 Remote Communication

The system shall have the ability to dial out in the event of an alarmusing BACnet Point-To-Point at a minimum of 28,800 baud. Receivers shallbe BACnet workstations.

2.5.8 Demand Limiting

a. The demand limiting program shall monitor building power consumptionfrom signals generated by a pulse generator (provided by others)mounted at the building power meter, or from a watt transducer orcurrent transformer attached to the building feeder lines.

b. The demand-limiting program shall predict the probable power demandsuch that action can be taken to prevent exceeding the demand limit.When demand prediction exceeds demand limit, action will be taken toreduce loads in a predetermined manner. When demand predictionindicates the demand limit will not be exceeded, action will be takento restore loads in a predetermined manner.

c. Demand reduction shall be accomplished by the following means:

1. Reset air handling unit supply temperature setpoint up by 2F.

2. Reset space temperature setpoints up by 2F.

3. De-energize equipment based upon priority.

d. Demand limiting parameters, frequency of calculations, time intervals,and other relevant variables shall be based on the means by which thelocal power company computes demand charges.

e. Provide demand-limiting prediction and control for any individual metermonitored by the system or for the total of any combination of meters.

f. Provide the means for an operator to make the following changes on-line:

1. Addition and deletion of loads controlled.

2. Changes in demand intervals.

3. Changes in demand limit for meter(s).

4. Maximum shutoff time for equipment.

5. Minimum shutoff time for equipment.

6. Select rotational or sequential shedding and restoring.

7. Shed/restore priority.

g. Provide the following information and reports, to be available on anhourly, daily, and monthly basis:

1. Total electric consumption.

2. Peak demand.

3. Date and time of peak demand.



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4. Daily peak demand.

2.5.9 Maintenance Management

The system shall monitor equipment status and generate maintenance messagesbased upon user-designated run-time, starts, and/or calendar date limits.

2.5.10 Sequencing

Provide application software to properly sequence the start and stop ofchillers, boilers, and pumps to minimize energy usage in the facility.

2.5.11 PID Control

A PID (proportional-integral-derivative) algorithm with direct or reverseaction and anti-windup shall be supplied. The algorithm shall calculate atime-varying analog value that is used to position an output or stage aseries of outputs. The controlled variable, setpoint, and PID gains shallbe user-selectable.

2.5.12 Staggered Start

This application shall prevent all controlled equipment from simultaneouslyrestarting after a power outage. The order in which equipment (or groupsof equipment) is started, along with the time delay between starts, shallbe user-selectable.

2.5.13 Energy Calculations

Provide software to allow instantaneous power (e.g., kW) or flow rates(e.g., GPM) to be accumulated and converted to energy usage data. Providean algorithm that calculates a sliding-window kW demand value.

2.5.14 Anti-Short Cycling

All binary output objects shall be protected from short cycling. Thisfeature shall allow minimum on-time and off-time to be selected.

2.5.15 On/Off Control with Differential

Provide an algorithm that allows a binary output to be cycled based on acontrolled variable and setpoint. The algorithm shall be direct-acting orreverse-acting, and incorporate an adjustable differential.

2.5.16 Run-time Totalization

Provide software to totalize run-times for all binary input objects. Ahigh run-time alarm shall be assigned, if required, by the operator.

2.6 BUILDING CONTROLLERS

2.6.1 General

Provide an adequate number of Building Controllers to achieve theperformance specified in article "System Performance." Each of thesepanels shall meet the following requirements.

a. The Building Automation System shall be comprised of one or more



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independent, standalone, microprocessor-based Building Controllers tomanage the global strategies described in the System Software section.

b. The Building Controller shall have sufficient memory to support itsoperating system, database, and programming requirements.

c. Data shall be shared between networked Building Controllers.

d. The operating system of the Building Controller shall manage the inputand output communication signals to allow distributed controllers toshare real and virtual object information, and allow central monitoringand alarms.

e. Controllers that perform scheduling shall have a real-time clock.

f. The Building Controller shall continually check the status of itsprocessor and memory circuits. If an abnormal operation is detected,the controller shall:

1. Assume a predetermined failure mode.

2. Generate an alarm notification.

g. The Building Controller shall communicate with other BACnet objects onthe internetwork using the Read (Execute and Initiate) and Write(Execute and Initiate) Property services as defined in Clauses 15.5 and15.8, respectively, of ASHRAE Standard 135-95.

Building Controller BACnet Services

BACnet Services Description Initiate Execute Acknowledge Alarms x x

Confirmed COV Notification x xConfirmed Event Notification x xGet Alarm Summary x xGet Enrolment Summary x xSubscribe COV x xUnconfirmed COV Notification x xUnconfirmed Event Notification x x

Atomic Read File x x Atomic Write File x x Add List Element --- x

Remove List Element --- xCreate Object x xDelete Object x xRead Property x xRead Property Multiple x xWrite Property x xRead Range x xWrite Property Multiple x xDevice Communication Control x xConfirmed Private Transfer x xUnconfirmed Private Transfer x xReinitialize Device x ---Time Synchronization x ---Who-Has --- xI-Have x ---Who-Is x xI-Am x x



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Building Controller BACnet Services

h. BACnet Functional Groups. The Building Controller shall support thefollowing BACnet functional groups: Clock, Event Initiation, COV EventResponse, Files, Device Communication, Time Master and Router.

2.6.2 Communication

a. Each Building Controller shall support a communications card. Thecommunications card shall be connected to the Building Controller by anindustry stackable PC-104 bus connection. The communications card isconnected to the BACnet network using the ISO 8802-3 (Ethernet) DataLink/ Physical layer protocol. The communications card shall providefor three diverse Ethernet installations; 10Base2, 10BASE5 and 10BaseTconnections.

b. Each Building Controller with a communications card shall performBACnet routing if connected to a network of Custom Application and

Application Specific Controllers.

c. The controller shall provide a service communication port using BACnetData Link/ Physical layer protocol P-T-P for connection to a hand-heldworkstation/or printer and/or modem.

d. The Building Controller shall support non-proprietary open protocols,e.g. Modbus, CAB, etc. Interface to the Building Controller shall bethrough an EIA 232 Point-To-Point connection.

e. The Building Controller secondary communication network shall supportone LonWorks FTT port at 78 Kbits/s.

2.6.3 Environment

Controller hardware shall be suitable for the anticipated ambientconditions.

a. Controllers used outdoors and/or in wet ambient conditions shall bemounted within waterproof enclosures, and shall be rated for operationat 32F to 100F and 10 to 90% RH.

b. Controllers used in conditioned space shall be mounted in dust proofenclosures, and shall be rated for operation at 32F to 120F.

1. Serviceability. Provide diagnostic LEDs for power, communication,and processor. All wiring connections shall be made to field-removable, modular terminal strips - or to a termination cardconnected by a ribbon cable.

2. Memory. The Building Controller shall have as a minimum standardSRAM of 256 KB, standard DRAM of 1MB and standard non-volatile 1MB of flash memory in lieu of EPROM. Memory shall be userextendible through RAM chip sockets and SIMMs for future memoryexpansion.

3. Immunity to power and noise. Controller shall be able to operateat 90% to 110% of nominal voltage rating and shall perform anorderly shutdown below 80% nominal voltage. The BuildingController shall maintain all BIOS and programming information inthe event of a power loss for at least 72 hours. Operation shall



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be protected against electrical noise of 5 to 120 Hz and fromkeyed radios up to 5 W at 3 ft.

4. Inputs/Outputs. Controller shall support a directly connectedinput/output board with 16 universal inputs and 16 universaloutputs. Input/output board to be expandable through individualI/O modules and up to 3 I/O expansion boards. A fully expandedcontroller shall support up to 145 connected inputs/outputs.

a. Inputs. Controller input/output board shall support drycontact, 0-5 VDC and 0-10 VDC- voltage, 4-20 mA- current andthermistor-resistive signal types on an individual basis forconnecting any status or sensing device. Analog resolution shallbe 12-bit A to D.

b. Ouputs. Controller input/output board shall supportplug-and-play I/O modules configured with manual-auto-off overrideswitch, potentiometer and input channel for feedback status or andunrelated analog or digital input. Output supported shall be 0-10VDC-voltage and/or 4-20mA-current.

5. Diagnostics. Controller input/output board shall have red LEDsproviding input status indication.

6. External Power. Controller input/ouput board shall have fouron-board 24 VDC terminal for directly connected active transducers.

7. The Building Controller shall have the capability to create,delete and support the following BACnet Objects:

a. ANALOG INPUT, ANALOG OUTPUT AND ANALOG VALUE: These objectsshall have the following writeable properties: Object Name; ObjectValue; Description; COV Increment; Out of Service and Units. Inaddition, these objects shall support the properties: Device type;Reliability; Min./Max. Values; Update Interval and Resolution.

b. BINARY INPUT, BINARY OUTPUT AND BINARY VALUE: These objectsshall have the following writeable properties: Object Name; ObjectValue; Description; Polarity; Default Value; Min On/Off and Out ofService. In addition, these objects shall support the properties:Device Type; Reliability; Active/Inactive Texts; Update Interval;Resolution; Change-of-State Time; Count Times and Time Reset.

c. CALENDAR: This object shall have the following writeableproperties: Object Name; Object Value; Description; and Date List.

d. DEVICE: This object shall have the following writeableproperties: Object Name; Description; Location; and UTC Offset.

e. EVENT ENROLMENT: This object shall have the followingwriteable properties: Object Name; Object Value;Description;Out-of-Service; Event & Notify Types; Paramenters;Property Ref; Enable; and Notification Class.

f. FILE: This object shall have the following writeableproperties: Object Name; Description; File Type; and File Access.

g. LOOP (PID): This object shall have the following writeableproperties: Object Name; Object Value; Description; Polarity;



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Response, Files, Device Communication, Time Master and Router.

2.7.2 Communication

a. Each Controller shall reside on a BACnet network using the MS/TP DataLink/ Physical layer protocol.

b. The controller shall provide a service communication port using BACnetData Link/ Physical layer protocol for connection to a hand-heldworkstation.

2.7.3 Environment

Controller hardware shall be suitable for the anticipated ambientconditions.

a. Controllers used outdoors and/or in wet ambient conditions shall bemounted within waterproof enclosures, and shall be rated for operationat 32F to 100F.

b. Controllers used in conditioned space shall be mounted in dust proofenclosures, and shall be rated for operation at 32F to 120F.

1. Serviceability. Provide diagnostic LEDs for power, communication,and processor. All wiring connections shall be made to field-removable, modular terminal strips - or to a termination cardconnected by a ribbon cable.

2. Memory. The Controller shall have non-volatile flash memory.

3. Immunity to power and noise. Controller shall be able to operateat 90% to 110% of nominal voltage rating and shall perform anorderly shutdown below 80% nominal voltage. Operation shall beprotected against electrical noise of 5 to 120 Hz and from keyedradios up to 5 W at 3 ft.

4. Inputs/Outputs. Controller shall support a directly connectedinput/output board with 16 universal inputs and 16 universaloutputs. Input/output board to be expandable through individualI/O modules and up to 3 I/O expansion boards. A fully expandedcontroller shall support up to 145 connected inputs/outputs.

(a) Inputs. Controller input/output board shall support drycontact, 0-5 VDC and 0-10 VDC- voltage, 4-20 mA- current andthermistor-resistive signal types on an individual basis forconnecting any status or sensing device. Analog resolution shallbe 12-bit A to D.

(b) Outputs. Controller input/output board shall supportplug-and-play I/O modules configured with manual-auto-off overrideswitch, potentiometer and input channel for feedback status or andunrelated analog or digital input. Output supported shall be 0-10VDC-voltage and/or 4-20mA-current.

5. Diagnostics. Controller input/output board shall have red LEDsproviding input status indication.

6. External Power. Controller input/ouput board shall have fouron-board 24 VDC terminal for directly connected active transducers.



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2.8 INPUT / OUTPUT INTERFACE

a. Hardwired inputs and output points/objects may be wired into the systemthrough Building, Custom Application, or Application SpecificControllers.

b. All input and output points shall be protected such that shorting ofthe point to itself, to another point, or to ground, will cause nodamage tot he controller. All input and output points shall beprotected from voltage up to 24 volts of any duration, such tat contactwith this voltage will cause no damage to the controller. Inputs andoutputs shall be arranged on interchangeable modules or circuit boardsto allow the replacement of a damaged module or board without replacingthe entire controller.

c. Digital inputs shall allow the monitoring of ON/OFF signals from remotedevices. The digital inputs shall provide a current of at least 12 mAto be compatible with commonly available control devices, and shall beprotected against the effects of contact bounce and noise. Digitalinputs shall sense "dry contact" closure without external power (otherthan that provided by the controller) being applied.

d. Pulse accumulation inputs. This type of point/object shall conform toall requirements of a binary input point/object, and also accept up to10 pulses per second for pulse accumulation.

e. Analog inputs shall allow the monitoring of 0-5 VDC, 0-10 VDC-voltage,and 4-20 mA-current, or thermistors, RTD-resistance signals. Analoginputs shall be compatible, and be field configurable to commonlyavailable sensing devices.

f. Digital outputs shall provide for ON/OFF operation, or a pulsedlow-voltage signal for pulse width modulation control. Digital outputson Building and Custom Application Controllers shall havethree-position override switches, Hand-Off-Auto with status lights.Outputs shall be selectable for either normally open or normally closedoperation.

g. Analog outputs shall provide a modulating signal for the control of enddevices. Outputs shall provide either a 0 to 10 VDC or a 4 to 20 mAsignal as required to provide proper control of the output device.

Analog outputs on Building or Custom Application Controllers shall havestatus lights and a two-position (AUTO/MANUAL) switch and manuallyadjustable potentiometer for manual override. Analog outputs shall notexhibit a drift of greater than 0.4% of range per year.

h. Tri-State Outputs. Provide tri-state outputs (two coordinated binaryoutputs) for control of three-point floating type electronic actuatorswithout feedback. Use of three-point floating devices shall be limitedto zone control and terminal unit control applications (VAV terminalunits, duct mounted heating coils, zone dampers, radiation, etc.).Control algorithms shall run the zone actuator to one end of its strokeonce every 24 hours for verification of operator tracking.

i. Input/Output points/objects shall be universal type, i.e., controllerinput or output may be designated (in software) as either a binary oranalog type point/object with appropriate properties. ApplicationSpecific Controllers are exempted from this requirement.



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j. System Object Capacity. The system size shall be expandable to atleast twice the number of input/output objects required for thisproject. Additional controllers (along with associated devices andwiring) shall be all that is necessary to achieve this capacityrequirement. The operator interfaces installed for this project shallnot require any hardware additions or software revisions in order toexpand the system.

2.9 POWER SUPPLIES AND LINE FILTERING

a. All control transformers shall be UL Listed. Furnish Class 2 currentlimiting type, or furnish over-current protection in both primary andsecondary circuits for Class 2 service per NEC requirements. Limitconnected loads to 80% of rated capacity.

1. DC power supply output shall match output current and voltagerequirements. Unit shall be full-wave rectifier type with outputripple of 5.0 mV maximum peak-to-peak. Regulation shall be 1.0%line and load combined, with 100 microsecond response time for 50%load changes. Unit shall have built in over-voltage andover-current protection, and shall be able to withstand a 150%current overload for at least 3 seconds without trip-out orfailure.

(a) Unit shall operate between 32F and 120F. EM/RF shall meetFCC Class B and VDE 0871 for Class B, and MIL-STD 810 for shockand vibration.

(b) Line voltage units shall be UL Recognized and CSA Approved.

b. Power line filtering.

1. Provide transient voltage and surge suppression for allworkstations and controllers either internally or as an externalcomponent. Surge protection shall have the following at a minimum:

(a) Dielectric strength of 1,000 volts minimum

(b) Response time of 10 nanoseconds or less

(c) Transverse mode noise attenuation of 65 dB or greater

(d) Common mode noise attenuation of 150 dB or better at 40 Hz to100 Hz.

2.10 GENERAL EQUIPMENT REQUIREMENTS

2.10.1 Electrical and Electronic Devices

All electrical and electronic devices not located within an HVAC controlpanel shall have a NEMA Type 1 enclosure in accordance with NEMA 250 unlessotherwise shown.

2.10.2 Standard Signals

The output of all analog transmitters and the analog input and output ofall controllers and function modules shall be 4-to-20 mAdc signals. Thesignal shall originate from current-sourcing devices and shall be receivedby current-sinking devices.



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2.10.3 Ambient Temperature Limits

Ambient Temperature Actuators and positive positioners, and transmittersshall operate within temperature limit ratings of 40 to 140 degrees F. Allpanel-mounted instruments shall operate within limit ratings of 35 to 120degrees F and 10 percent to 95 percent relative humidity, noncondensing.

All devices installed outdoors shall operate within limit ratings of minus40 to plus 150 degrees F.

2.10.4 Nameplates, Lens Caps, and Tag Nameplates

Nameplates, lens caps, and lens caps bearing legends as shown and tagsbearing device-unique identifiers as shown shall have engraved or stampedcharacters. A plastic or metal tag shall be mechanically attached directlyto each device or attached by a metal chain or wire. Each air flowmeasurement station shall have a tag showing flow rate range for signaloutput range, duct size, and identifier as shown.

2.10.5 Year 2000 Compliance

All equipment shall be Year 2000 compliant and shall be able to accuratelyprocess date/time data (including, but not limited to, calculating,comparing, and sequencing) from, into, and between the twentieth andtwenty-first centuries, including leap year calculations, when used inaccordance with the product documentation provided by the contractor,provided that all products (e.g. hardware, software, firmware) used incombination with other information technology, shall accurately processdate/time data if other information technology properly exchanges date/timedata with it.

2.11 MATERIALS

2.11.1 Tubing

2.11.1.1 Plastic

Plastic tubing shall have barbed fittings. Plastic tubing shall have theburning characteristics of linear low-density polyethylene tubing, shall beself-extinguishing when tested in accordance with ASTM D 635, shall have UL94 V-2 flammability classification, and shall withstand stress crackingwhen tested in accordance with ASTM D 1693.

2.11.2 Wiring

All control and interlock wiring shall comply with national and localelectrical codes and Division 16 and this specification. Where therequirements of this section differ with those in Division 16, therequirements of this section shall take precedence.

2.11.2.1 Terminal Blocks

Terminal blocks shall be insulated, modular, feed-through, clamp style withrecessed captive screw-type clamping mechanism, shall be suitable for railmounting, and shall have end plates and partition plates for separation orshall have enclosed sides.



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2.11.2.2 Control Wiring for 24-Volt Circuits

Control wiring for 24-volt circuits shall be 18 AWG minimum, strandedcopper and shall be rated for 300-volt service.

Documents

Heating, Ventilating and Air Conditioning (Hvac) Control Systems