832571250 PWS Appendix F - BACnet DDC For HVAC.pdf

UNCLASSIFIED

APPENDIX F: BACNET DIRECT DIGITAL CONTROL

SYSTEMS (DDC) FOR HVAC

HAW RAISED FLOOR AND CRAH UPGRADE

EFFECTIVE DATE: 07 NOVEMBER 2024

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PART 1 GENERAL

1.1 SCOPE

This specification details the requirements for BACnet Direct Digital Control (DDC) Systems for HVAC, and shall be used in conjunction with DISA Facilities Engineering Standards, Attachment 25-01, Section 25 00 00 Integrated Automation.

New DDC systems shall utilize ICONICS GENESIS64.

1.2 REFERENCES

The publications listed below form a part of this specification to the extent referenced. The publications are referred within the text by the basic designation only. The current revision of the reference, including all issued updates, must be followed.

UNIFIED FACILITIES CRITERIA:

UFC 3-410-02 Direct Digital Control For HVAC And Other Building Control Systems

UFC 4-010-06 Cybersecurity Of Facility-Related Control Systems (FRCS)

DEFENSE INFORMATION SYSTEMS AGENCY (DISA)

TBD DISA Facilities Engineering Standards

Attachment 01-01 Section 01 33 00: Submittal Procedures

Attachment 01-02 Minimum Technical Specification for Structures, Systems, Equipment, & Components: Identification, Labeling, and Marking

Attachment 01-03 Project Commissioning, Close-Out, And Transition

Attachment 25-01 Section 25 00 00 Integrated Automation

AIR MOVEMENT AND CONTROL ASSOCIATION INTERNATIONAL (AMCA)

AMCA 500-D Laboratory Methods of Testing Dampers for Rating

AMERICAN SOCIETY OF HEATING, REFRIGERATING AND AIR-CONDITIONING

ENGINEERS (ASHRAE)

ASHRAEI STD 62.1 Ventilation for Acceptable Indoor Air Quality

ASHRAE STD 135 BACnet™ – A Data Communication Protocol for Building Automation and Control Networks

ARCNET TRADE ASSOCIATION (ATA)

ATA 878.1 Local Area Network: Token Bus

ASME INTERNATIONAL (ASME)

ASME B16.18 Cast Copper Alloy Solder Joint Pressure Fittings

ASME B16.22 Wrought Copper and Copper Alloy Solder Joint Pressure Fittings

ASME B16.26 Cast Copper Alloy Fittings for Flared Copper Tubes

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ASME B16.34 Valves - Flanged, Threaded and Welding End

ASME B16.5 Pipe Flanges and Flanged Fittings: NPS 1/2 Through NPS 24 Metric/Inch Standard

ASME B31.1 Power Piping

ASME B40.100 Pressure Gauges and Gauge Attachments

ASME BPVC SET Boiler and Pressure Vessels Code

ASTM INTERNATIONAL (ASTM)

ASTM A126 Standard Specification for Gray Iron Castings for Valves, Flanges, and Pipe Fittings

ASTM B117 Standard Practice for Operating Salt Spray (Fog) Apparatus

ASTM B32 Standard Specification for Solder Metal

ASTM B75/75M Standard Specification for Seamless Copper Tube

ASTM B88 Standard Specification for Seamless Copper Water Tube

ASTM B88M Standard Specification for Seamless Copper Water Tube (Metric)

ASTM D1238 Standard Test Method for Melt Flow Rates of Thermoplastics by Extrusion Plastometer

ASTM D1693 Standard Test Method for Environmental Stress-Cracking of Ethylene Plastics

ASTM D635 Standard Test Method for Rate of Burning and/or Extent and Time of Burning of Plastics in a Horizontal Position

ASTM D638 Standard Test Method for Tensile Properties of Plastics

ASTM D792 Standard Test Methods for Density and Specific Gravity (Relative Density) of Plastics by Displacement

CONSUMER TECHNOLOGY ASSOCIATION (CTA)

ANSI/CTA-709.1 Control Network Protocol Specification

INSTITUTE OF ELECTRICAL AND ELECTRONICS ENGINEERS (IEEE)

IEEE C57.13 Requirements for Instrument Transformers

IEEE C62.41.1 Guide on the Surges Environment in Low-Voltage (1000 V and Less) AC Power Circuits

IEEE C62.41.2 Recommended Practice on Characterization of Surges in Low- Voltage (1000 V and Less) AC Power Circuits

IEEE C62.45 Recommended Practice on Surge Testing for Equipment Connected to Low-Voltage (1000v and Less) AC Power Circuits

INTERNATIONAL ORGANIZATION FOR STANDARDIZATION (ISO)

ISO/IEC/IEEE 8802-3 Information Technology - Telecommunications and Information Exchange Between Systems - Local and Metropolitan Area Networks - Specific Requirements - Part 3: Standard for Ethernet

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NATIONAL ELECTRICAL MANUFACTURERS ASSOCIATION (NEMA)

ANSI C12.10 American National Standard for Physical Aspects of Watthour Meters - Safety Standards

NEMA 250 Enclosures for Electrical Equipment (1000 Volts Maximum)

NEMA ICS 6 Industrial Control and Systems: Enclosures

NATIONAL FIRE PROTECTION ASSOCIATION (NFPA)

NFPA 70 National Electrical Code

NFPA 72 National Fire Alarm and Signaling Code

NFPA 90A Standard for the Installation of Air Conditioning and Ventilating Systems

NATIONAL INSTITUTE OF STANDARDS IN TECHNOLOGY (NIST)

NIST SP 800-53 Security and Privacy Controls for Information Systems and Organizations

NIST SP 800-171 Protecting Controlled Unclassified Information in Nonfederal Systems and Organizations

SHEET METAL AND AIR CONDITIONING CONTRACTORS' NATIONAL ASSOCIATION

(SMACNA)

SMACNA 1966 HVAC Duct Construction Standards Metal and Flexible

UNDERWRITERS LABORATORIES (UL)

UL 506 Standard for Specialty Transformers

UL 508A Standard for Industrial Control Panels

UL 916 Standard for Energy Management Equipment

UL 1449 Standard for Surge Protective Devices

1.2.1 Modification of References

The advisory provisions are mandatory. Substitute "must" for "should" wherever it appears and interpret all references to the "authority having jurisdiction" and "owner" to mean the Contracting Officer and DISA.

1.3 DEFINITIONS

AC Alternating Current.

AI Analog Input

AMCA Air Movement and Control Association International

ANSI American National Standards Institute

AO Analog Output

ARCNET ATA 878.1. ARCNET is a deterministic LAN technology; meaning it is possible to determine the maximum delay before a device is able to transmit a message.

ASHRAE American Society of Heating, Refrigerating and Air-Conditioning Engineers

ASME American Society of Mechanical Engineers

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ASTM American Society for Testing and Materials

ATA Arcnet Trade Association

ATFP Anti-Terrorism/Force Protection.

AWG American Wire Gauge

B-AAC BACnet Advanced Application Controllers

BACnet Building Automation and Control Network; the common name for the communication standard ASHRAE STD 135. ASHRAE developed BACnet to provide a method for diverse building automation devices to communicate and share data over a network.

The standard defines methods and protocol for cooperating building automation devices to communicate over a variety of LAN technologies.

BACnet/IP An extension of BACnet, Annex J, defines this mechanism using a reserved UDP socket to transmit BACnet messages over IP networks. A BACnet/IP network is a collection of one or more IP subnetworks that share the same BACnet network number. See also "BACnet Broadcast Management Device".

BACnet Internetwork Two or more BACnet networks, possibly using different LAN technologies, connected with routers. In a BACnet internetwork, there exists only one message path between devices.

BACnet Network One or more BACnet segments that have the same network address and are interconnected by bridges at the physical and data link layers.

BACnet Segment One or more physical segments of BACnet devices on a BACnet network, connected at the physical layer by repeaters.

BAS Building Automation Systems, including DDC (Direct Digital Controls) used for facility automation and energy management.

BAS Owner The regional or local user responsible for managing all aspects of the BAS operation, including: Network connections, workstation management, submittal review, technical support, control parameters, and daily operation. The BAS Owner for all DISA projects is DISA and the local facility manager.

B-BC BACnet Building Controllers

BBMD BACnet Broadcast Management Device (BBMD). A communications device, typically combined with a BACnet router. A BBMD forwards BACnet broadcast messages to BACnet/IP devices and other BBMDs connected to the same BACnet/IP network.

Every IP subnetwork that is part of a BACnet/IP network must have only one BBMD.

See also "BACnet/IP".

BC Building Controllers.

BIBBs BACnet Interoperability Building Blocks. A collection of BACnet services used to describe supported tasks. BIBBs are often described in terms of "A" (client) and "B" (server) devices. The “A” device uses data provided by the "B" device, or requests an action from the “B” device.

BI Binary Input.

BI/BTL BACnet International/BACnet Testing Laboratories (Formerly BMA/BTL). The organization responsible for testing products for compliance with the BACnet standard, operated under the direction of BACnet International.

BO Binary Output

B-OWS BACnet Operator Workstation

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Bridge Network hardware that connects two or more network (or BACnet internetwork) segments at the physical and data link layers. A bridge may also filter messages.

Broadcast A message sent to all devices on a network segment.

BV Binary Value.

CD Compact Disc.

CT Switch Current Activated Switch

CTA Consumer Technology Association

Cv Valve flow coefficient.

DC Direct Current.

DDC Direct Digital Control. Digital controllers performing control logic. Usually the controller directly senses physical values, makes control decisions with internal programs, and outputs control signals to directly operate switches, valves, dampers, and motor controllers.

DDC System A network of digital controllers, communication architecture, and user interfaces. A DDC system with equipment monitoring, lighting controls systems, and life safety system monitoring used for facilities. A DDC system may include programming, sensors, actuators, switches, relays, factory controls, operator workstations, and various other devices, components, and attributes.

Device Any control system component, usually a digital controller, which contains a BACnet Device Object and uses BACnet to communicate with other devices. See also "Digital Controller".

Device Object Every BACnet device requires one Device Object, whose properties represent the network visible properties of that device. Every Device Object requires a unique Object Identifier number on the BACnet internetwork. This number is often referred to as the device instance.

Device Profile. A collection of BIBBs determining minimum BACnet capabilities of a device, defined in ASHRAE Standard 135, Annex L. Standard device profiles include BACnet Operator Workstations (B-OWS), BACnet Building Controllers (B-BC), BACnet Advanced Application Controllers (B-AAC), BACnet Application Specific Controllers (B-ASC), BACnet Smart Actuator (B-SA), and BACnet Smart Sensor (B-SS). Each device used in new construction is required to have a PICS statement listing BIBBs supported.

Digital Controller An electronic controller, usually with internal programming logic and digital and analog input/output capability, which performs control functions. In most cases, synonymous with a BACnet device described in this specification. See also "Device".

DISA Defense Information Systems Agency, Facilities Engineering Denver

Distributed Network Architecture. A network architecture in which multiple devices are located on the network, each having their own control logic and communicating with other devices in a peer-to-peer fashion. A failure of one of these devices or controllers shall not cause other devices on the network to fail. In the event of a network failure the controllers will continue to perform the programmed sequences of operation until network communication is restored.

DM-DCC-B Device Management Communication Control

DM-DDB-B Device Management Dynamic Device Binding-B

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DPDT Double Pole Double Throw.

DS-RP-B Data Sharing Read Property

DS-WP-B Data Sharing Write Property

DVD Digital Video Disk.

DVD±R/RW/CD-RW An optical drive which can write CDs and DVDs in both the one-time (R) and multiple-time (RW) formats.

DX Direct Expansion.

EEPROM Electrically Erasable Programmable Read Only Memory.

EMI Electromagnetic Interference.

Ethernet A family of local-area-network technologies providing high-speed networking features over various media.

FCU Fan Coil Units.

Firmware Software programmed into read only memory (ROM), flash memory, electrically erasable programmable read only memory (EEPROM), or erasable programmable read only memory (EPROM) chips.

FTU Fan Terminal Unit.

Gateway Communication hardware connecting two or more different protocols, similar to human language translators. The Gateway translates one protocol into equivalent concepts for the other protocol. In BACnet applications, a gateway has BACnet on one side and non-BACnet (usually proprietary) protocols on the other side.

Half Router. A device that participates as one partner in a BACnet point-to-point (PTP) connection. Two half- routers in an active PTP connection combine to form a single router.

Hub. A common connection point for devices on a network.

HVAC Heating, Ventilation, and Air Conditioning

IEEE Institute of Electrical and Electronics Engineers

Internet Protocol (IP, TCP/IP, UDP/IP. A communication method, the most common use is the World Wide Web. At the lowest level, it is based on Internet Protocol (IP), a method for conveying and routing packets of information over various LAN media. Two common protocols using IP are UDP and TCP.

inwc inches water column, or inches water gauge.

I/O Input/Output. Physical inputs and outputs to and from a device, although the term sometimes describes software, or "virtual" I/O. See also "Points".

I/O Expansion Unit An I/O expansion unit provides additional point capacity to a digital controller.

IP subnet IP identifies individual devices with a 32-bit number divided into four groups from 0 to

255. Devices are often grouped and share some portion of this number. For example, one device has IP address 209.185.47.68 and another device has IP address 209.185.47.82. These two devices share Class C subnet 209.185.47.00.

ISO International Organization for Standardization

LAN Local-Area Network. A communication network that spans a limited geographic area and uses the same basic communication technology throughout.

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LCD Liquid Crystal Display.

LonTalk ANSI/CTA-709.1. A communication protocol developed by Echelon Corp. LonTalk is an optional physical and data link layer for BACnet.

MAC Address Media Access Control address. The physical node address that identifies a device on a Local Area Network.

MS/TP Master-Slave/Token-Passing. ISO 8802-3. One of the LAN options for BACnet.

MS/TP uses twisted- pair wiring for relatively low speed and low cost communication (up to 4,000 ft at 76.8K bps).

Native BACnet Device A “native” BACnet device is a device that has been tested by the BACnet Testing Laboratories (BTL) and confirmed to adequately support ASHRAE standard 135.

Please reference the BTL website for detailed device listings.

NEMA National Electrical Manufacturers Association

Network Communication technology for data communications. BACnet approved network types are BACnet over Internet Protocol (IP), Point to Point (PTP) Ethernet, ARCNET, MS/TP, and LonTalk®.

Network Number A site-specific number assigned to each network segment to identify for routing. This network number must be unique throughout the BACnet internetwork.

NFPA National Fire Protection Association.

NTP Network Time Protocol.

Object The concept of organizing BACnet information into standard components with various associated properties. Examples include analog input objects and binary output objects.

Object Identifier An object property used to identify the object, including object type and instance.

Object Identifiers must be unique within a device.

Object Properties. Attributes of an object. Examples include present value and high limit properties of an analog input object. Properties are defined in ASHRAE STD 135; some are optional and some are required. Objects are controlled by reading from and writing to object properties.

OEM Original Equipment Manufacturer

O&M Operation & Maintenance

OWS Operator Work Station

Peer-to-Peer Peer-to-Peer refers to devices on a common network or backbone that can initiate and respond to communication directly with another device without the need of a master or server device.

PVT Performance Verification Test. The procedure for determining if the installed BAS meets design criteria prior to final acceptance. The PVT is performed after installation, testing, and balancing of mechanical systems. The PVT is performed by the Contractor in the presence of The Government.

PID Proportional, integral, and derivative control; three parameters used to control modulating equipment to maintain a setpoint. Derivative control is often not required for HVAC systems (leaving "PI" control).

PICS Protocol Implementation Conformance Statement (PICS), describing the BACnet capabilities of a device. See BACnet, Annex A for the standard format and content of a PICS statement.

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Points Physical and virtual inputs and outputs. See also "Input/Output".

PTP Point-to-Point protocol connects individual BACnet devices or networks using serial connections like modem-to-modem links.

Repeater. A network component that connects two or more physical segments at the physical layer.

RFI Radio Frequency Interference.

Router A BACnet router is a component that joins together two or more networks using different LAN technologies. Examples include joining a BACnet Ethernet LAN to a BACnet MS/TP LAN.

RTD Resistance Temperature Detector.

SD Smoke Detector

SMACNA Sheet Metal and Air Conditioning Contractors' National Association.

SPOF Single Point of Failure. In statistical probability terms, a “serial system.” A serial system is one in which all items must operate correctly for the system to operate.

Any system that contains only one component to do a job creates a single point of failure. If that single component fails, there is no alternate one to take its place

Stand-Alone Control. No networked DDC control, communication, or monitoring capabilities. Typically this consists of either simple/basic control sequences or simply hardwired interlocks between safeties on equipment. Devices may or may not be located near controlled equipment.

TAB Test and Balance

TCP Transmission Control Protocol. TCP establishes "sessions", which have end-to-end confirmation and guaranteed sequence of delivery. See IP.

UDP User Datagram Protocol. UDP conveys information to well-known "sockets" without confirmation of receipt. See IP

UL Underwriters Laboratories

USB Universal Serial Bus

VFD Variable Frequency Drive

1.4 ADMINISTRATIVE REQUIREMENTS

1.4.1 Sequencing

The control system work for this project shall proceed in the following order:

a. Submit and receive approval on the Shop Drawings, Product Data, and Certificates specified under the paragraph 1.5, SUBMITTALS.

b. Perform the control system installation work, including all field check-outs and tuning.

c. Provide support to TAB personnel as specified under the paragraph 3.4.1, Test and Balance Support.

d. Submit and receive approval of the Controls System Operators Manual specified under the paragraph 3.6.1, Controls System Operators Manual.

e. Submit and receive approval of the Pre-Performance Verification Testing Plan and the Commissioning Plan specified under paragraph 3.3.1.3, Conducting Performance Verification Testing and in DISA Facilities Engineering Standards, Attachment 01-03, Project Commissioning, Close-Out, And Transition.

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f. Submit and receive approval on the Training Documentation specified under the paragraph 3.6.2, Training. Submit at least 6 weeks before training.

g. Deliver the final Controls System Operators Manuals.

h. Conduct the Training.

i. Submit and receive approval of Closeout Submittals.

1.5 SUBMITTALS

Government approval is required for all submittals, extensions of design, critical materials, deviations, equipment whose compatibility with the entire system must be checked, and other items as designated by the Contracting Officer. Government approval is required for any deviations from the Solicitation or Accepted Proposal and other items as designated by the Contracting Officer. DISA will review and approve for the Contracting Officer those submittals reserved for Contracting Officer approval to verify submittals comply with the Contract requirements.

Submit the following in accordance with Section 01 33 00, Submittal Procedures:

SD-02 Shop Drawings

Include the following in the project's Control System Drawing Set:

Control system drawings title sheet

Floor Plan (BAS Equipment and BAS Network Routing)

List of I/O Points

Control System Components List

Control System Schematics

HVAC Equipment Sequence of Operations

HVAC Equipment Electrical Ladder Diagrams

Component Wiring Diagrams

Terminal Strip Diagrams

BACnet Communication Architecture Schematic

Electrical Power Sources

Wire numbers on all wires and terminations

SD-03 Product Data

Direct Digital Controllers

Include BACnet PICS for each controller/device type, including smart sensors (B-SS) and smart actuators (B-SA)

BACnet Gateways;

Include BACnet and workstation display information; bi-directional communication ability;

compliance with interoperability schedule; expansion capacity; handling of alarms, events, scheduling and trend data; and single device capability (not depending on multiple devices for exchanging information from either side of the gateway)

DDC Software;

BACnet Operator Workstation

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BACnet Operator Workstation DDC Software

Include BACnet PICS for Operator Workstation software

Sensors and Input Hardware

Output Hardware

Surge and transient protection

Indicators

Valves (per valve schedule)

SD-05 Design Data

Transformer Sizing Calculations

Pre-PVT Checklist

Commissioning Plan

SD-06 Test Reports

Pre-PVT Report

SD-07 Certificates

Credentials of the Contractor

Qualified Training Instructor

Qualified Permanent Service Organizations

SD-09 Manufacturer’s Field Reports

Pre-PVT Checklist

SD-10 Operation and Maintenance (O&M) Data

Controls System Operators Manual.

Training Plan.

Training Outline.

Training Content.

Training Manual.

Warranty.

SD-11 Closeout Submittals

Record Drawings.

Commissioning Reports.

Training Completion.

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1.6 MAINTENANCE MATERIAL SUBMITTALS

1.6.1 Spare Parts

Label the packaging for all spare parts with their manufacturer’s part number and nomenclature.

Provide the following spare parts:

a. One Controller for each type of controller used in the chiller system

b. One I/O expansion card for each type of controller used in the chiller system

c. One Controller for each type of controller used in the condenser water system (if different from the chiller plant)

d. One I/O expansion card for each type of controller used in the condenser water system (if different from the chiller plant)

e. Two of each type of fuse used in the DDC system

f. Two of each type of relay used in the DDC system

g. Two of each type of CT switches used in the DDC system

h. A set of actuators to support the condenser and evaporator valves for a single chiller

i. A set of actuators to support the supply and return valves for a single cooling tower cell

1.7 QUALITY CONTROL

1.7.1 Qualifications

1.7.1.1 Credentials of Contractor

The Contractor and Sub-Contractors must meet the following:

Have a minimum of 2 years of documented experience in the installation and commissioning of similar controls systems.

Provide a listing of the following:

o Product designs and installations that include at least three DDC systems installations, similar to the design of this project, programmed similar sequences of operation, and in successful service for a minimum period of 2 years.

o The approximate size of the controls scope of work (in dollars), project duration, name and address of installation, service organization, and date of installation.

Provide resumes of the Contractor’s project team, including phone numbers for all onsite personnel.

1.7.1.2 Qualified Training Instructor

The training instructor(s) must have 5 years minimum field experience with the installation and programming of Delta BACnet DDC systems.

1.7.1.3 Service Support

Support the equipment items by service organizations. Submit a certified list of qualified permanent service organizations for support of the equipment which includes their addresses and qualifications.

Provide service organizations that are able to render satisfactory service to the equipment on a regular and emergency basis during the warranty period of Contract.

Equipment must be supported by a service organization that is, in the opinion of the Contracting Officer, reasonably convenient to the site.

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1.8 DELIVERY, STORAGE, AND HANDLING

Carefully handle, store, and protect equipment and materials to prevent damage before and during installation in accordance with manufacturer's recommendations, and as approved by the Contracting Officer. Do not subject equipment and materials to shock. Replace damaged or defective items. Protect from the weather, humidity and temperature variation; and dirt, dust, or other contaminants.

Deliver equipment to an inside location in the facility. Provide all necessary equipment and lifts to receive and move the delivered equipment. If onsite storage is required, coordinate interim storage requirements and location with the Government as soon as possible. Provide physical installation to the final location inside the facility. Provide verification of inside delivery and onsite storage to The Government the onsite storage conditions meet the minimum requirements by the manufacturer to ensure warranty coverage.

1.9 PROJECT/SITE CONDITIONS

1.9.1 Designer Security Requirements

The designer of the DDC system shall maintain a security clearance in accordance with the Contract documents for the Contract that the work is being performed under.

1.9.2 DDC Operator, Installer and Repairer Security Requirements

All installer, operators and repairers of a DDC system shall posses and maintain a valid Secret security clearance. All operators and programmers of DDC systems shall additionally posses “Privileged User access”.

1.9.3 Agency Directive Security Requirements

All applicable devices that communicate with the BAS or have BAS capability not connected to the BAS shall be IPv6 compatible.

The contractor shall implement the described security controls in accordance with NIST SP 800-171 when handling the contract documents/programming which includes handling CUI.

All controls shall be in accordance with NIST SP 800-53.

1.10 WARRANTY

Provide a one-year, onsite, parts and labor manufacturer warranty, in writing, against defects in material and workmanship for 12 months after substantial project completion at no additional cost to The Government. The manufacturer must maintain a dispatch center 24 hours per day, 365 days per year, to minimize service response time and to maximize availability of qualified service personnel. Provide a 24 hour onsite diagnostic response to warranty issues within the warranty period. The manufacturer agrees to repair or replace components that fail in materials or workmanship within 5 business days of the arrival of the onsite diagnostic response. Warranty must include all labor, travel, material, and related expenses to restore system and/or components from failures through the warranty period. Warranty must provide start-up, maintenance, and emergency call back to ensure dependable operation throughout the warranty period.

PART 2 PRODUCTS

2.1 SYSTEM DESCRIPTION

a. Approved Controller and Software Manufacturers.

Delta Controls, latest hardware version.

Approved Sensor and Hardware Manufacturers are listed in the Sensor and Hardware section.

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b. Provide new BACnet, modify existing, and merge with existing BACnet DDC systems including associated equipment and accessories. All new devices must communicate using ASHRAE STD 135 BACnet communications without the use of gateways, unless gateways are requested or approved by The Government. When gateways are allowed, they must support ASHRAE STD 135, including all object properties and read-write services shown on designer provided and Government approved interoperability schedules. Manufacturer's products, including design, materials, fabrication, assembly, inspection, and testing shall be in accordance with ASHRAE STD 135, ASME B31.1, and NFPA 70, except where indicated otherwise.

c. When installing a new system, the installed system and components shall include the latest Delta Firmware.

d. When modifying an existing Delta Controls DDC System, the upgrade shall include an upgrade of the existing system (all components) to the latest Delta Controls firmware and software versions.

e. When modifying a Delta Controls DDC System, the upgrade or expansion shall include replacement of any operator workstation that is older than 2 years old at the time of the project end date or does not comply with the workstation requirements outlined in this specification for the upgraded software required in paragraph 2.1.d.

f. Provide a new workstation for all new installations when an existing workstation does not exist.

2.1.1 Design Requirements

All new work stations, controllers, devices, and components shall be listed by BACnet International’s BACnet Testing laboratories (BTL) with accessibility using a Web browser interface, and shall communicate exclusively using the ASHRAE Standard 135 BACnet communications protocol without the use of gateways, unless otherwise allowed by this Section of the technical specifications, specifically shown on the design drawings.

When installing a new system or expanding an existing system, the new components of the system shall be of the most recent Delta Hardware Build, and shall communicate seamlessly with previous versions of Delta Controls Hardware. The Contractor shall include in his pricing the cost to “flash” the existing previous Delta hardware versions with the latest firmware and software to match that of the latest hardware being installed.

The designer shall utilize this specification to develop a complete BAS design that incorporates the projects DDC requirements and necessary interfaces, graphics, and communication with the ICONICS GENISIS64 system outlined in DISA Facilities Engineering Standards, Attachment 25-01, Section 25 00 00 Integrated Automation.

2.1.1.1 Control System Drawings

Drawings shall be in accordance with the current release of the USACE Engineer Research and Development Center A/E/C CAD Standard. Models shall be drawn in model space at full scale (1:1).

Drawings shall be in paper space, sized at ANSI D, placed in the DISA Title Block. All pdf drawings submitted shall be text searchable. All measurements on project drawings shall be in United States Customary System (USCS) units unless stated otherwise. All drawings shall be compatible with the current version of AutoCAD. Provide a control system drawing set. Include in the drawing set:

Sheet Number Sheet Title

M600 Title Sheet, Legend, Sheet Index

M601-M609 Local Network Architecture/Enterprise Network Architecture

M610-M619 Floor Plans (BAS Components, Network Routing)

M620-M629 DDC Points List, DDC Control Programs

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Sheet Number Sheet Title

M630-M634 Chilled Water Systems

M635-M639 Condenser Water Systems

M640-M644 Hot Water Systems

M645-M669 Air Distribution Systems (AHU, VAV, CRAH, CRAC et cetera)

M670-M699 Monitoring of Electrical Systems, Points List, Programs

MD600 – MD650 BAS System Demo/Removal

Project floor plan drawings shall annotate all DDC equipment locations and network wiring. Include locations of all workstations.

2.1.1.2 List of I/O Points

Also known as a Point Schedule, provide for each input and output point physically connected to a digital controller: point name, point description, point tag (read only, read write) point type (Analog Output (AO), Analog Input (AI), Binary Output (BO), Binary Input (BI)), point sensor range, point actuator range, point address, BACnet object, associated BIBBS (where applicable), and point connection terminal number.

Typical schedules for multiple identical equipment are NOT permitted.

2.1.1.3 Control System Bill of Materials

Provide a complete list of control system components installed on this project. Include for each controller and device: Control system schematic name, control system schematic designation, device description, manufacturer, and manufacturer part number. For sensors, include point name, sensor range, and operating limits. For valves, include body style, Cv, design flow rate, pressure drop, valve characteristic (linear or equal percentage), and pipe connection size. For actuators, include point name, spring or non-spring return, modulating or two-position action, normal (power fail) position, nominal control signal operating range (0-10 volts DC or 4-20 milliamps), and operating limits.

2.1.1.4 Control System Schematics

Provide control system schematics. Include the following:

a. Location of each input and output device

b. Flow diagram for each piece of HVAC equipment

c. Name or symbol for each control system component, such as V-1 for a valve

d. Setpoints, with differential or proportional band values

e. Written sequence of operation for the HVAC equipment

f. Valve and Damper Schedules, with normal (power fail) position

2.1.1.5 HVAC Equipment Electrical Ladder Diagrams

Provide HVAC equipment electrical ladder diagrams. Indicate required electrical interlocks.

2.1.1.6 Component Wiring Diagrams

Provide a wiring diagram for each type of input device and output device. Indicate how each device is wired and powered; showing typical connections at the digital controller and power supply. Show for all field connected devices such as control relays, motor starters, actuators, sensors, and transmitters.

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2.1.1.7 Terminal Strip Diagrams

Provide a diagram of each terminal strip. Indicate the terminal strip location, termination numbers, and associated point names.

2.1.1.8 BACnet Communication Architecture Schematic

Provide a schematic showing the project's entire BACnet communication network, including addressing used for LANs, LAN devices including routers and bridges, gateways, controllers, workstations, and field interface devices. If applicable, show connection to existing networks.

2.1.1.9 Transformer Calculations

Provide calculations that demonstrate how each transformer being used in the DDC system was sized.

The calculations shall show all load power requirements.

2.1.2 Performance Requirements

2.1.2.1 Seismic Performance

Units must withstand the effects of a seismic event. Provide all necessary bracing and supports to meet requirements for installation for the site seismic design category in accordance with IBC or in accordance with the local seismic design category equivalent for OCONUS sites. Provide seismic calculations sealed by a Professional Engineer to confirm the installation meets the seismic requirement in accordance with

IBC.

The term “withstand” means “the unit remains in place without separation of any parts when subject to the seismic forces specified and remain fully operational after the seismic event.”

2.2 FABRICATION

2.2.1 Finishes

Manufacturer's standard factory finishing is acceptable.

2.2.2 Enclosures

Provide enclosures for equipment or cabinets which to not meet the following minimum ratings:

NEMA 1 for indoor installations.

NEMA 4 for installations outdoors or in damp environments such as chiller rooms, basements, crawlspaces, attics.

2.3 EQUIPMENT

2.3.1 Standard Products

Provide materials and equipment which are the standard products of a manufacturer regularly engaged in the manufacture of such products which are of equal material, design and workmanship. Products must meet the following:

a. Standard manufacturer’s products currently in production.

b. Satisfactorily in use for at least 1 year prior to bid opening.

c. Available for purchase in the commercial market through advertisements, manufacturer’s catalogs, or brochures for at least 1 year prior to bid opening.

d. Single manufacturer when two or more items of the same type are required.

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e. Supported by a local service organization.

2.3.2 DDC System

Provide a networked DDC system for stand-alone control in compliance with the latest revision of the ASHRAE STD 135 BACnet standard. Include all programming, objects, and services required to meet the sequence of control. Provide BACnet communications between the DDC system and native BACnet devices furnished with HVAC and central plant equipment. All devices provided shall be certified in the BACnet Testing Laboratories (BTL) Product Listing.

Provide an operator workstation with complete interface software capable of programming, configuring, and monitoring the digital controllers. Interface the new DDC system with the GENISIS64 system. Create graphics, trends, schedules, alarming on the ICONICS GENESIS64 System in accordance with DISA Facilities Engineering Standards, Attachment 25-01, Section 25 00 00 Integrated Automation.

2.3.2.1 Direct Digital Controllers

Direct digital controllers shall be UL 916 listed.

2.3.2.1.1 Redundancy and I/O Point capacity

Each critical system or equipment shall have its own dedicated controller(s), and power supply(s) with capacity to meet redundancy requirements as specified in other parts of this specification. Redundant critical systems or equipment shall not be combined on a single controller. Provide a minimum of 10% spare I/O capacity for future expansion in each controller cabinet. The controller cabinet must include field wiring terminals and power supply capacity to support the spare I/O Dedicated purpose controllers such as VAV and FCU serving individual devices are exempted from spare I/O capacity requirements.

2.3.2.1.2 Environmental Limits

Controllers shall be suitable for, or placed in protective enclosures suitable for the environment (temperature, humidity, dust, and vibration) where they are located.

2.3.2.1.3 Peer-to-peer communication in distributed network architecture

The control systems shall be designed such that each mechanical system shall operate under stand alone.

The Contractor shall provide controllers for each mechanical system. In the event of a network communication failure, or the loss of any field controller, the control system shall continue to operate independently. Failure of the operator work station (s) (OWS) shall have no effect on the field controllers, including those involved with global strategies.

2.3.2.1.4 Internal Clock

Provide internal clocks for all BACnet Building Controllers (B-BC) and BACnet Advanced Application Controllers (B-AAC). Automatically synchronize system clocks daily.

2.3.2.1.5 Memory

Provide sufficient memory for each controller to support the required control, communication, trends, alarms, and messages. Protect programs residing in memory with EEPROM, flash memory. The backup power source shall have capacity to maintain the memory during a 72-hour continuous power outage.

Rechargeable power sources shall be constantly charged while the controller is operating under normal line power. Batteries shall be replaceable without soldering. Trend and alarm history collected during normal operation shall not be lost during power outages less than 72 hours long.

2.3.2.1.6 Immunity to Power Fluctuations

Controllers shall operate at 90 to 110% nominal voltage rating.

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2.3.2.1.7 Transformer

The controller power supply shall be fused or current limiting and rated at 125% power consumption.

2.3.2.1.8 Wiring Terminations

Use screw terminal wiring terminations for all field-installed controllers. Provide field-removable modular terminal strip or a termination card connected by a ribbon cable for all controllers other than terminal units.

2.3.2.1.9 Input and Output Interface

Provide hard-wired input and output interface for all controllers as follows:

a. Protection: Shorting an input or output point to itself, to another point, or to ground shall cause no controller damage. Input or output point contact with sources up to 24 volts AC or DC for any duration shall cause no controller damage.

b. Binary Inputs: Binary inputs shall have a toggle switch and monitor on and off contacts from a "dry" remote device without external power, and external 5-24 VDC voltage inputs.

c. Pulse Accumulation Inputs: Pulse accumulation inputs shall conform to binary input requirements and accumulate pulses at a resolution suitable to the application.

d. Analog Inputs: Analog inputs shall monitor low-voltage (0-10 VDC), current (4-20 mA), or resistance (thermistor or RTD) signals.

e. Binary Outputs: Binary outputs shall have a toggle switch and send a pulsed 24 VDC low-voltage signal for modulation control, or provide a maintained open-closed position for on-off control. For HVAC equipment and plant controllers, provide for manual overrides, keyed three-position (on-off-auto) override switches and status lights. Where appropriate, provide a method to select normally open or normally closed operation.

f. Analog Outputs: Analog outputs shall send modulating 0-10 VDC or 4-20 mA signals to control output devices. Analog outputs shall have a toggle switch and method to adjust the analog signal, or provide a maintained open-closed position for on-off control. For HVAC equipment and plant controllers, provide for manual overrides, keyed three-position (on-off-auto) override switches, analog modulation method and status lights,

g. Tri-State Outputs: Tri-State outputs shall provide three-point floating control of terminal unit electronic actuators.

2.3.2.1.10 Digital Controller BACnet Internetwork

Provide a BACnet internetwork with control products, communication media, connectors, repeaters, hubs, and routers. Provide intermediate gateways, only when approved by The Government to connect existing non-BACnet devices to the BACnet internetwork. Controller and operator interface communication shall conform to ASHRAE STD 135, BACnet. Where appropriate use the building's existing Building Automation System (BAS) network. Do not connect to any DISA network unless provided approval in writing by the HC342 project engineer. If a controller becomes non-responsive, the remaining controllers shall continue operating and not be affected by the failed controller.

2.3.2.1.11 Communications Ports

Direct-Connect Interface Ports: Provide at least one extra communication port at each BACnet controller for direct connecting a notebook computer or BACnet hand-held terminal so all network BACnet objects and properties may be viewed and edited by the operator.

2.3.2.1.12 Prohibited Items

Modems not allowed for installation.

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Connecting Contractor owned computers or equipment is prohibited after the system is connected to the DDC network or any switch.

2.3.2.1.13 BACnet Gateways

Provide BACnet communication ports, whenever available as a plant equipment OEM standard option, for DDC integration via a single communication cable. Typical BACnet controlled plant equipment includes, but is not limited to, boilers, chillers, and variable frequency motor drives.

Provide gateways to connect BACnet to legacy systems, existing non-BACnet devices, and existing non-BACnet DDC controlled plant equipment, only when specifically approved by The Government.

Provide with each gateway an interoperability schedule showing each point or event on the legacy side that the BACnet "client" will read, and each parameter that the BACnet network will write to. Describe this interoperability in terms of BACnet services, or Interoperability Building Blocks (BIBBS), defined in ASHRAE STD 135 Annex K. Provide a two-year minimum warranty for each gateway, including parts and labor.

The following minimum capabilities are required:

a. Gateways shall be able to read and view all readable object properties listed in the interoperability schedule on the non-BACnet network to the BACnet network and vice versa where applicable.

b. Gateways shall be able to write to all writeable object properties listed in the interoperability schedule on the non-BACnet network from the BACnet network and vice versa where applicable.

c. Gateways shall provide single-pass (only one protocol to BACnet without intermediary protocols) translation from the non-BACnet protocol to BACnet and vice versa.

d. Gateways shall meet the requirements of Data Sharing Read Property (DS-RP-B), Data Sharing Write Property (DS-WP-B), Device Management Dynamic Device Binding-B (DM-DDB-B), and Device Management Communication Control (DM-DCC-B) BIBBs, in accordance with ASHRAE STD 135.

e. All unused ports and terminations on a Gateway shall be turned off/disabled via the gateways software, firmware, or configuration tool.

f. Gateways shall include all hardware, software, software licenses, and configuration tools for operator-to- gateway communications. Provide backup programming and parameters on CD/DVD media and the ability to modify, download, backup, and restore gateway configuration.

2.3.2.1.14 Digital Controller Cabinet

Provide each digital controller in a factory fabricated cabinet enclosure in accordance with paragraph 2.2, FABRICATION. Outdoor control panels and controllers must be able to withstand extreme ambient conditions, without malfunction or failure, whether or not the controlled equipment is running. If necessary, provide a thermostatically controlled panel heater in freezing locations, and an internal ventilating fan in locations exposed to direct sunlight. Cabinets shall have a hinged lockable door and an offset removable metal back plate, except controllers integral with terminal units, like those mounted on VAV boxes. Provide like-keyed locks for all hinged panels and a set of two keys for each panel to the Facility Manager.

Controller cabinet enclosures shall be UL 508A listed. All fabricated control panels shall comply and be certified UL 508A. Each panel assembly shall be fabricated and bench tested prior to being shipped to the site for field installation. Each panel shall be provided with its own UL 508A listing, identifiable by a UL label affixed to the backplane. Panel enclosure test results shall be logged, attached to a digital photograph of each panel, and included in the O&M package provided to the owner a project closeout.

Each cabinet that contains manual equipment operation as defined by this specification provide a phenolic label on the cabinet that describes the steps/actions required to manually operate the equipment.

2.3.2.1.15 Network Switches

See Appendix 1 for switch requirements.

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2.3.2.1.16 Main Power Switch and Receptacle

Provide each control cabinet with a main external power on/off switch located inside the cabinet. Provide each cabinet with a separate 120VAC duplex receptacle.

2.3.2.1.17 Standalone UPS

When required by this specification provide a standalone UPS with the correct input and output voltage to support the controls system being supported by the UPS. The UPS shall meet the following minimum requirements:

UPS Type: Online, Double Conversion AC output - ± 2% of output rating

Monitoring: Dry Contacts to alert on UPS alarm and failure

NO WEB MONITORING OPTIONS ARE PERMITTED.

Battery Metering: LED type

Battery Runtime: Full load for 5 minutes

2.3.2.1.18 DDC Redundancy Levels

See Appendix 2 for DDC Redundancy Level requirements

2.3.2.1.19 External Power Sources for DDC systems

DDC systems shall be installed with external power sources as follows:

System External Power

Source Standalone UPS Required

Air Handler and VAV (Admin Spaces) Essential Power No

Chiller Plants (supporting Data Centers) One Essential, One Critical*

Yes, Essential Power Source Only

Condenser Plants (supporting Data Centers) One Essential, One Critical*

Yes, Essential Power Source Only

Chiller Plants (Admin Spaces) Essential Yes

Condenser Plants (Admin Spaces) Essential Yes

Exhaust Systems (Life safety and Battery Rooms)

Critical No

* The term one is not intended to indicate providing a single source, but rather to indicate that one N system is to be powered by a particular source or power. Provide the quantity of redundant (2N) circuits necessary to provide a reliable and operable DDC system.

External power sources shall be sized in accordance with NFPA 70 (National Electrical Code).

2.3.2.1.20 Network Architecture

Utilize or install (as required by the Contract or design) the network established by the requirements of DISA Facilities Engineering Standards, Attachment 25-01, Section 25 00 00 Integrated Automation, to interconnect all DDC controllers in a Distributed Network Architecture fashion.

Install a MS/TP subnet from the nearest DDC controller to establish communication with administrative space equipment such as VAV’s, FTU’s, and exhaust systems.

Label all network wiring so that the labels are readable without having to disconnect or manipulate the wire to make the label legible.

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Wire insulation and jacket color for the network shall comply with the following table:

Equipment Connected Wire Jacket Color

Ethernet Blue

MS/TP, Modbus Orange

2.3.2.2 DDC Software

Refer to DISA Facilities Engineering Standards, Attachment 25-01, Section 25 00 00 Integrated Automation, for a list of data points.

2.3.2.2.1 Equipment Sequence of Operations

Refer to Appendices for the following generalized sequences of operations:

a. Air Systems

(1) Air Handlers

(2) Outside Air Handlers

(3) VAVs

(a) VAVs (Cooling Only)

(b) Fan Powered VAVs

(4) Fan Coil Units (FCU)

(5) Unit Heaters

(6) Exhaust Fans

(a) Administrative Room Exhaust Fans

(b) Battery Room Exhaust Fans

b. Water Systems

(1) Condenser Water Systems Supporting Computer Rooms

(2) Centrifugal Chilled Water Systems Supporting Computer Rooms

(3) Centrifugal Chilled Water Systems Supporting Administrative Rooms

(4) Air Cooled Chilled Water Systems Supporting Computer Rooms

(5) Air Cooled Chilled Water Systems Supporting Administrative Rooms

The BAS…