Amendment_0001.pdf

W68SBV50490372

AMENDMENT OF SOLICITATION/MODIFICATION OF CONTRACT

Except as provided herein, all terms and conditions of the document referenced in Item 9A or 10A, as heretofore changed, remains unchanged and in full force and effect.

15A. NAME AND TITLE OF SIGNER (Type or print)

30-105-04EXCEPTION TO SF 30

APPROVED BY OIRM 11-84

STANDARD FORM 30 (Rev. 10-83) Prescribed by GSA

FAR (48 CFR) 53.243

TITLE: Headquarters Building HVAC and Server Room Upgrades

The purpose of this amendment is to make the changes indicated in the Summary of Changes.

Proposal due date remains unchanged, July 30, 2015 at 4:00 p.m.

1. CONTRACT ID CODE PAGE OF PAGES

J 1 6

16A. NAME AND TITLE OF CONTRACTING OFFICER (Type or print)

16C. DATE SIGNED

BY 07-Jul-2015

16B. UNITED STATES OF AMERICA15C. DATE SIGNED15B. CONTRACTOR/OFFEROR

(Signature of Contracting Officer)(Signature of person authorized to sign)

8. NAME AND ADDRESS OF CONTRACTOR (No., Street, County, State and Zip Code) X W912EF-15-R-0034

X 9B. DATED (SEE ITEM 11)

19-Jun-2015

10B. DATED (SEE ITEM 13)

9A. AMENDMENT OF SOLICITATION NO.

11. THIS ITEM ONLY APPLIES TO AMENDMENTS OF SOLICITATIONS

X The above numbered solicitation is amended as set forth in Item 14. The hour and date specified for receipt of Offer is extended, X is not extended.

Offer must acknowledge receipt of this amendment prior to the hour and date specified in the solicitation or as amended by one of the following methods:

(a) By completing Items 8 and 15, and returning 1 copies of the amendment; (b) By acknowledging receipt of this amendment on each copy of the offer submitted;

or (c) By separate letter or telegram which includes a reference to the solicitation and amendment numbers. FAILURE OF YOUR ACKNOWLEDGMENT TO BE RECEIVED AT THE PLACE DESIGNATED FOR THE RECEIPT OF OFFERS PRIOR TO THE HOUR AND DATE SPECIFIED MAY RESULT IN

REJECTION OF YOUR OFFER. If by virtue of this amendment you desire to change an offer already submitted, such change may be made by telegram or letter, provided each telegram or letter makes reference to the solicitation and this amendment, and is received prior to the opening hour and date specified.

12. ACCOUNTING AND APPROPRIATION DATA (If required)

13. THIS ITEM APPLIES ONLY TO MODIFICATIONS OF CONTRACTS/ORDERS.

IT MODIFIES THE CONTRACT/ORDER NO. AS DESCRIBED IN ITEM 14.

A. THIS CHANGE ORDER IS ISSUED PURSUANT TO: (Specify authority) THE CHANGES SET FORTH IN ITEM 14 ARE MADE IN THE

CONTRACT ORDER NO. IN ITEM 10A.

B. THE ABOVE NUMBERED CONTRACT/ORDER IS MODIFIED TO REFLECT THE ADMINISTRATIVE CHANGES (such as changes in paying office, appropriation date, etc.) SET FORTH IN ITEM 14, PURSUANT TO THE AUTHORITY OF FAR 43.103(B).

C. THIS SUPPLEMENTAL AGREEMENT IS ENTERED INTO PURSUANT TO AUTHORITY OF:

D. OTHER (Specify type of modification and authority)

E. IMPORTANT: Contractor is not, is required to sign this document and return copies to the issuing office.

14. DESCRIPTION OF AMENDMENT/MODIFICATION (Organized by UCF section headings, including solicitation/contract subject matter where feasible.)

10A. MOD. OF CONTRACT/ORDER NO.

2. AMENDMENT/MODIFICATION NO. 5. PROJECT NO.(If applicable)

6. ISSUED BY

3. EFFECTIVE DATE

07-Jul-2015

CODE

USAED, WALLA WALLA - CONTRACTING DIV.

JANI C. LONG

201 N. THIRD AVENUE

WALLA WALLA WA 99362-1876

W912EF 7. ADMINISTERED BY (If other than item 6)

4. REQUISITION/PURCHASE REQ. NO.

CODE

See Item 6

FACILITY CODECODE

EMAIL:TEL:

W912EF-15-R-0034

SECTION SF 30 BLOCK 14 CONTINUATION PAGE

SUMMARY OF CHANGES

Revised the following Specifications:

SECTION 23 09 23.00 23 LONWORKS DIRECT DIGITAL CONTROL FOR HVAC AND OTHER

BUILDING CONTROL SYSTEMS

a. Revised the following paragraphs:

o 2.7 Flow Sensors

SECTION 00800 - SPECIAL CONTRACT REQUIREMENTS

The following have been modified:

ACCESS FOR FOREIGN NATIONALS:

SITE VISIT AND CONTRACT WORK: Security clearance for foreign nationals to attend a site visit or to perform onsite work requires a minimum of 4 weeks. Please send documentation by email (.pdf files are preferred) to jani.c.long@usace.army.mil and Phyllis.L.Buerstatte@usace.army.mil.

Acceptable forms of documentation include:

A US passport, Certificate of US citizenship (INS Form N-560 or N-561), Certificate of Naturalization (INS Form N-550 or N-570), foreign passport with I-551 stamp or attached INS Form I-94 indicating employment authorization, Alien Registration Receipt Card with photograph (INS Form I-151 or I-551), Temporary Resident Card (INS Form I-688), Employment Authorization Card (INS Form I-688A), Reentry Permit (INS Form I-327), Refugee Travel Document (INS Form I-571), Employment Authorization Document issued by the INS which contains a photograph (INS Form I-688B).

Foreign nationals must have received clearance prior to being granted access to the project site.

(End of Summary of Changes)

NWW DISTRICT HQ HVAC & SERVER ROOM UPGRADES W912EF-15-R-0034

Amend-0001

SECTION TABLE OF CONTENTS

DIVISION 23 - HEATING, VENTILATING, AND AIR CONDITIONING

SECTION 23 09 23.00 23

LONWORKS DIRECT DIGITAL CONTROL FOR HVAC AND OTHER BUILDING CONTROL SYSTEMS

PART 1 GENERAL

1.1 REFERENCES

1.2 DEFINITIONS

1.3 SYSTEM DESCRIPTION

1.3.1 System Requirements

1.3.2 Verification of Dimensions

1.3.3 Drawings

1.3.4 Data Packages/Submittals Requirements

1.4 SUBMITTALS

1.5 PROJECT SEQUENCING

1.6 QUALITY CONTROL (QC) CHECKLISTS

1.7 DELIVERY AND STORAGE

1.8 OPERATION AND MAINTENANCE (O&M) INSTRUCTIONS

1.9 SURGE PROTECTION

1.9.1 Power-Line Surge Protection

1.9.2 Surge Protection for Transmitter and Control Wiring

1.10 INPUT MEASUREMENT ACCURACY

PART 2 PRODUCTS

2.1 EQUIPMENT

2.1.1 General Requirements

2.1.2 Operation Environment Requirements

2.1.2.1 Pressure

2.1.2.2 Vibration

2.1.2.3 Temperature

2.1.2.3.1 Products Installed Indoors

2.1.2.3.2 Products Installed Outdoors or in Unconditioned Indoor

Spaces

2.1.2.4 Humidity

2.2 ENCLOSURES AND WEATHERSHIELDS

2.2.1 Enclosures

2.2.1.1 Outdoors

2.2.1.2 Mechanical and Electrical Rooms

2.2.1.3 Other Locations

2.2.2 Weathershields

2.3 NETWORK HARDWARE

2.3.1 CEA-709.1-D Network Routers

2.3.2 Gateways

2.3.3 CEA-709.1-D to IP Router

2.4 WIRE AND CABLE

2.4.1 Terminal Blocks

2.4.2 Control Network Wiring

2.4.3 Control Wiring for Binary Signals

2.4.4 Control Wiring for 120-Volt Circuits

SECTION 23 09 23.00 23

2.4.5 Control Wiring for Analog Signals

2.4.6 Transformers

2.5 AUTOMATIC CONTROL VALVES

2.5.1 Ball Valves

2.5.2 Butterfly Valves

2.5.3 Two-Way Valves

2.5.4 Three-Way Valves

2.5.5 Duct-Coil and Terminal-Unit-Coil Valves

2.5.6 Valves for Chilled-Water, Condenser-Water, and Glycol Service

2.6 DAMPERS

2.6.1 Damper Assembly

2.6.2 Operating Linkages

2.6.3 Damper Types

2.6.3.1 Flow Control Dampers

2.6.3.2 Mechanical Rooms and Other Utility Space Ventilation Dampers

2.6.3.3 Smoke Dampers

2.7 SENSORS AND INSTRUMENTATION

2.7.1 Transmitters

2.7.2 Temperature Sensors

2.7.2.1 Sensor Ranges and Accuracy

2.7.2.1.1 Conditioned Space Temperature

2.7.2.1.1.1 Operating Range

2.7.2.1.1.2 Accuracy

2.7.2.1.1.3 Drift

2.7.2.1.2 Unconditioned Space Temperature

2.7.2.1.2.1 Operating Range

2.7.2.1.2.2 Accuracy

2.7.2.1.2.3 Drift

2.7.2.1.3 Duct Temperature

2.7.2.1.3.1 Operating Range

2.7.2.1.3.2 Accuracy

2.7.2.1.3.3 Drift

2.7.2.1.4 Outside Air Temperature

2.7.2.1.4.1 Operating Range

2.7.2.1.4.2 Accuracy

2.7.2.1.4.3 Drift

2.7.2.1.5 Dual Temperature Water

2.7.2.1.5.1 Operating Range

2.7.2.1.5.2 Accuracy

2.7.2.1.5.3 Drift

2.7.2.1.6 Condenser Water

2.7.2.1.6.1 Operating Range

2.7.2.1.6.2 Accuracy

2.7.2.1.6.3 Drift

2.7.2.2 Point Temperature Sensors

2.7.2.3 Averaging Temperature Sensors

2.7.2.4 Thermowells

2.7.3 Relative Humidity Sensor

2.7.4 Differential Pressure Instrumentation

2.7.4.1 Differential Pressure Sensors

2.7.4.2 Differential Pressure Switch

2.7.5 Flow Sensors

2.7.5.1 Orifice Plate

2.7.5.2 Flow Nozzle

2.7.5.3 Venturi Tube

2.7.5.4 Annular Pitot Tube

2.7.5.5 Insertion Turbine Flowmeter

2.7.5.6 Vortex Shedding Flowmeter

2.7.5.7 Positive Displacement Flow Meter

SECTION 23 09 23.00 23

G4EDDRJR

Line

2.7.5.8 Flow Meters, Paddle Type

2.7.5.9 Flow Switch

2.7.6 Electrical Instruments

2.7.6.1 Watt or Watthour Transducers

2.7.6.2 Watthour Revenue Meter (with and without Demand Register)

2.7.6.3 Current Transducers

2.7.6.4 Current Sensing Relays (CSRs)

2.7.6.5 Voltage Transducers

2.7.7 pH Sensor

2.7.8 Vibration Switch

2.7.9 Conductivity Sensor

2.7.10 Turbidity Sensor

2.7.11 Chlorine Detector

2.7.12 Temperature Switch

2.7.12.1 Duct Mount Temperature Low Limit Safety Switch (Freezestat)

2.7.12.2 Pipe Mount Temperature Limit Switch (Aquastat)

2.7.13 Damper End Switches

2.8 INDICATING DEVICES

2.8.1 Thermometers

2.8.1.1 Piping System Thermometers

2.8.1.2 Air-Duct Thermometers

2.8.2 Pressure Gauges

2.8.3 Low Differential Pressure Gauges

2.9 OUTPUT DEVICES

2.9.1 Actuators

2.9.1.1 Valve Actuators

2.9.1.2 Damper Actuators

2.9.2 Relays

2.10 USER INPUT DEVICES

2.11 MULTIFUNCTION DEVICES

2.11.1 Current Sensing Relay Command Switch

2.11.2 Thermostats

2.12 DIRECT DIGITAL CONTROL (DDC) HARDWARE

2.12.1 General Requirements

2.12.2 Hardware Input-Output (I/O) Functions

2.12.2.1 Analog Inputs

2.12.2.2 Analog Outputs

2.12.2.3 Binary Inputs

2.12.2.4 Binary Outputs

2.12.2.4.1 Relay Contact Closures

2.12.2.4.2 Triac Outputs

2.12.2.5 Pulse Accumulator

2.12.3 Local Display Panel (LDP)

2.12.4 Application Specific Controller (ASC)

2.12.5 General Purpose Programmable Controller (GPPC)

2.12.6 Application Generic Controller (AGC)

2.12.7 Operator Workstation

2.12.7.1 Password Protection

2.12.7.2 LONworks Operator Workstation DDC Software

2.12.7.3 Graphics Software

PART 3 EXECUTION

3.1 EXISTING CONDITIONS SURVEY

3.2 CONTROL SYSTEM INSTALLATION

3.2.1 General Installation Requirements

3.2.1.1 HVAC Control System

3.2.1.2 Device Mounting Criteria

3.2.1.3 Labels and Tags

3.2.2 Building Control Network (BCN)

3.2.2.1 Building Control Network (BCN) Channel

3.2.2.2 Building Control Network (BCN) Backbone

3.2.2.3 Building Control Network (BCN) Installation

3.2.3 DDC Hardware

3.2.3.1 Hand-Off-Auto (H-O-A) Switches

3.2.3.2 Overrides for GPPCs and AGCs

3.2.3.2.1 Override SNVT of Same SNVT Type Method

3.2.3.2.2 HVAC Override SNVT Method

3.2.3.3 Overrides for ASCs

3.2.4 Gateways

3.2.5 Network Interface Jack

3.2.6 Room Instrument Mounting

3.2.7 Indication Devices Installed in Piping and Liquid Systems

3.2.8 Duct Smoke Detectors

3.2.9 Temperature Limit Switch

3.2.10 Averaging Temperature Sensing Elements

3.2.11 Air Flow Measurement Arrays (AFMA))

3.2.12 Relative Humidity Sensors

3.2.13 Flowmeters

3.2.14 Dampers

3.2.14.1 Damper Actuators

3.2.14.2 Damper Installation

3.2.15 Valves

3.2.15.1 Ball Valves

3.2.15.2 Butterfly Valves

3.2.16 Wire and Cable

3.3 DRAWINGS AND CALCULATIONS

3.3.1 DDC Contractor Design Drawings

3.3.1.1 Drawing Index and HVAC Design Drawing Legend

3.3.1.2 Valve Schedule

3.3.1.3 Damper Schedule

3.3.1.4 Thermostat and Occupancy Sensor Schedule

3.3.1.5 Equipment Schedule

3.3.1.6 Occupancy Schedule

3.3.1.7 Points Schedule

3.3.1.8 Riser Diagram of Building Control Network

3.3.1.9 Control System Schematics

3.3.1.10 Sequences of Operation Including Control Logic Diagrams

3.3.1.11 Controller, Motor Starter and Relay Wiring Diagram

3.3.2 Draft As-Built Drawings

3.3.3 Final As-Built Drawings

3.4 CONTROLLER TUNING

3.5 START-UP AND START-UP TEST

3.5.1 General

3.5.1.1 Systems Check

3.5.1.1.1 Step 1 - System Inspection

3.5.1.1.2 Step 2 - Calibration Accuracy Check

3.5.1.1.3 Step 3 - Actuator Range Check

3.5.1.2 Weather Dependent Test

3.5.2 Start-Up and Start-Up Testing Report

3.5.3 Draft LNS Database

3.6 PERFORMANCE VERIFICATION TEST (PVT)

3.6.1 PVT Procedures

3.6.1.1 Sensor Accuracy Checks

3.6.1.2 Temporary User Interface

3.6.1.3 Endurance Test

3.6.1.4 Network Peak Bandwidth Test

3.6.1.5 PVT Equipment List

3.6.2 PVT Execution

3.6.3 PVT Report

3.6.4 Final LNS Database

3.7 MAINTENANCE AND SERVICE

3.7.1 Description of Work

3.7.2 Personnel

3.7.3 Scheduled Inspections

3.7.4 Scheduled Work

3.7.5 Emergency Service

3.7.6 Operation

3.7.7 Records and Logs

3.7.8 Work Requests

3.7.9 System Modifications

3.7.9.1 TRAINING

-- End of Section Table of Contents --

LONWORKS DIRECT DIGITAL CONTROL FOR HVAC AND OTHER BUILDING CONTROL SYSTEMS

PART 1 GENERAL

1.1 REFERENCES

The publications listed below form a part of this specification to the extent referenced. The publications are referred to within the text by the basic designation only.

AIR MOVEMENT AND CONTROL ASSOCIATION INTERNATIONAL (AMCA)

AMCA 500-D (2012) Laboratory Methods of Testing Dampers for Rating

AMCA 511 (2013) Certified Ratings Program for Air Control Devices

AMERICAN SOCIETY OF HEATING, REFRIGERATING AND AIR-CONDITIONING

ENGINEERS (ASHRAE)

ASHRAE FUN IP (2013) Fundamentals Handbook, I-P Edition

ASME INTERNATIONAL (ASME)

ASME B16.15 (2013) Cast Copper Alloy Threaded Fittings Classes 125 and 250

ASME B16.34 (2013) Valves - Flanged, Threaded and Welding End

ASME B40.100 (2013) Pressure Gauges and Gauge Attachments

ASTM INTERNATIONAL (ASTM)

ASTM A536 (1984; R 2009) Standard Specification for Ductile Iron Castings

CONSUMER ELECTRONICS ASSOCIATION (CEA)

CEA-709.1-D (2014) Control Network Protocol Specification

CEA-709.3 (1999; R 2004) Free-Topology Twisted-Pair Channel Specification

CEA-852-C (2014) Tunneling Component Network Protocols Over Internet Protocol Channels

FLUID CONTROLS INSTITUTE (FCI)

FCI 70-2 (2013) Control Valve Seat Leakage

INSTITUTE OF ELECTRICAL AND ELECTRONICS ENGINEERS (IEEE)

IEEE 142 (2007; Errata 2014) Recommended Practice for Grounding of Industrial and Commercial Power Systems - IEEE Green Book

IEEE C62.41 (1991; R 1995) Recommended Practice on Surge Voltages in Low-Voltage AC Power Circuits

INTERNET ENGINEERING TASK FORCE (IETF)

IETF RFC 4361 (2006) Node-specific Client Identifiers for Dynamic Host Configuration Protocol Version Four (DHCPv4)

LONMARK INTERNATIONAL (LonMark)

LonMark Interoperability Guide (2005) LonMark Application-Layer Interoperability Guide and LonMark Layer 1-6 Interoperability Guide; Version 3.4

LonMark SCPT List (2003) LonMark SCPT Master List; Version 12

LonMark SNVT List (2003) LonMark SNVT Master List; Version

LonMark XIF Guide (2001) LonMark External Interface File Reference Guide; Revision 4.402

NATIONAL ELECTRICAL MANUFACTURERS ASSOCIATION (NEMA)

ANSI C12.1 (2008) Electric Meters Code for Electricity Metering

ANSI C12.20 (2010) Electricity Meters - 0.2 and 0.5 Accuracy Classes

NEMA 250 (2008) Enclosures for Electrical Equipment (1000 Volts Maximum)

NEMA/ANSI C12.10 (2011) Physical Aspects of Watthour Meters

- Safety Standards

NATIONAL FIRE PROTECTION ASSOCIATION (NFPA)

NFPA 70 (2014; AMD 1 2013; Errata 1 2013; AMD 2 2013; Errata 2 2013; AMD 3 2014; Errata 3 2014) National Electrical Code

NFPA 90A (2015) Standard for the Installation of Air Conditioning and Ventilating Systems

U.S. FEDERAL COMMUNICATIONS COMMISSION (FCC)

FCC Part 15 Radio Frequency Devices (47 CFR 15)

UNDERWRITERS LABORATORIES (UL)

UL 5085-3 (2006; Reprint Nov 20121) Low Voltage Transformers - Part 3: Class 2 and Class 3 Transformers

UL 555 (2006; Reprint May 2014) Standard for Fire Dampers

UL 555S (2014) Smoke Dampers

UL 916 (2007; Reprint Aug 2014) Standard for Energy Management Equipment

1.2 DEFINITIONS

The following list of definitions may contain terms not found elsewhere in the Section but are included here for completeness.

a. Application Generic Controller (AGC): A device that is furnished with a (limited) pre-established application that also has the capability of being programmed. Further, the ProgramID and XIF file of the device are fixed. The programming capability of an AGC may be less flexible than that of a General Purpose Programmable Controller (GPPC).

b. Application Specific Controller (ASC): A device that is furnished with a pre-established built in application that is configurable but not re-programmable. An ASC has a fixed factory-installed application program (i.e Program ID) with configurable settings.

c. Binary: A two-state system where an "ON" condition is represented by a high signal level and an "OFF" condition is represented by a low signal level. 'Digital' is sometimes used interchangeably with 'binary'.

d. Binding: The act of establishing communications between CEA-709.1-D devices by associating the output of a device to the input of another so that information is automatically (and regularly) sent.

e. Building Control Network (BCN): The CEA-709.1-D control network consisting of one or more TP/FT-10 channels, and possibly a single TP/XF-1250 channel, in doubly terminated bus topology.

f. Building Point of Connection (BPOC): The BPOC is the point of connection between the UMCS network backbone (an IP network) and the building control network backbone. The hardware at this location, that provides the connection is referred to as the BPOC Hardware. In general, the term "BPOC Location" means the place where this connection occurs, and "BPOC Hardware" means the device that provides the connection. Sometimes the term "BPOC" is used to mean either and its actual meaning (i.e. location or hardware) is determined by the context in which it is used.

g. Channel: A portion of the control network consisting of one or more segments connected by repeaters. Channels are separated by routers.

The device quantity limitation is dependent on the topology/media and device type. For example, a TP/FT-10 network with locally powered devices is limited to 128 devices per channel.

h. Commandable: See Overridable.

i. Configuration Property: Controller parameter used by the application which is usually set during installation/testing and seldom changed.

For example, the P and I settings of a P-I control loop. Also see 'Standard Configuration Property Type (SCPT)'

j. Control Logic Diagram: A graphical representation of control logic for multiple processes that make up a system.

k. Domain: A grouping of up to 32,385 nodes that can communicate directly with each other. (Devices in different domains cannot communicate directly with each other.) See also Node Address.

l. Explicit Messaging: A non-standard and often vendor (application) specific method of communication between devices where each message contains a message code that identifies the type of message and the devices use these codes to determine the action to take when the message is received.

m. External Interface File (XIF): A file which documents a device's external interface, specifically the number and types of LonMark objects, the number, types, directions, and connection attributes of network variables, and the number of message tags.

n. Functional Profile: A standard description, defined by LonMark, of one or more LonMark Objects used to classify and certify devices.

o. Gateway: A device that translates from one protocol application data format to another. Devices that change only the transport mechanism of the protocol - "translating" from TP/FT-10 to Ethernet/IP for example -are not gateways as the underlying data format does not change.

Gateways are also called Communications Bridges or Protocol Translators.

p. General Purpose Programmable Controller (GPPC): Unlike an ASC or AGC, a GPPC is not furnished with a fixed application program and does not have a fixed ProgramID or XIF file. A GPPC can be (re-)programmed, usually using vendor-supplied software. When a change to the program affects the external interface (and the XIF file) the ProgramID will change.

q. LonMark Object: A collection of network variables, configuration properties, and associated behavior defined by LonMark International and described by a Functional Profile. It defines how information is exchanged between devices on a network (inputs from and outputs to the network).

r. LNS Plug-in: Software which runs in an LNS compatible software tool, typically a network configuration tool. Device configuration plug-ins provide a 'user friendly' method to edit a device's configuration properties.

s. LonMark: See LonMark International. Also, a certification issued by LonMark International to CEA-709.1-D devices.

t. LonMark International: Standards committee consisting of numerous independent product developers, system integrators and end users dedicated to determining and maintaining the interoperability guidelines for LonWorks. Maintains guidelines for the interoperability of CEA-709.1-D devices and issues the LonMark Certification for

CEA-709.1-D devices.

u. LonMark Interoperability Association: See 'LonMark International'.

v. LonWorks: The term used to refer to the overall technology related to the CEA-709.1-D protocol (sometimes called "LonTalk"), (including the protocol itself, network management, interoperability guidelines and products.

w. LonWorks Network Services (LNS): A network management and database standard for CEA-709.1-D devices.

x. Monitoring and Control (M&C) Software: The UMCS 'front end' software which performs supervisory functions such as alarm handling, scheduling and data logging and provides a user interface for monitoring the system and configuring these functions.

y. Network Variable: See 'Standard Network Variable Type (SNVT)'.

z. Network Configuration Tool: The software used to configure the control network and set device configuration properties. This software creates and modifies the control network database (LNS Database).

aa. Node: A device that communicates using the CEA-709.1-D protocol and is connected to a CEA-709.1-D network.

bb. Node Address: The logical address of a node on the network, consisting of a Domain number, Subnet number and Node number. Note that the "Node number" portion of the address is the number assigned to the device during installation and is unique within a subnet. This is not the factory-set unique Node ID (see Node ID).

cc. Node ID: A unique 48-bit identifier assigned (at the factory) to each CEA-709.1-D device. Sometimes called the Neuron ID.

dd. Overridable: A point is overridable if its value can be changed using network variables outside of the normal sequence of operations where this change has priority over the sequence. Typically this override is from the Utility Monitoring and Control System (UMCS) Monitoring and Control (M&C) Software. Note that that this definition is not standard throughout industry; some refer to this capability as "commandable" and some use this term to refer to changing a value from a configuration tool.

ee. Polling: A device requesting data from another device.

ff. Program ID: An identifier (number) stored in the device (usually EEPROM) that identifies the node manufacturer, functionality of device (application & sequence), transceiver used, and the intended device usage.

gg. Repeater: A device that connects two control network segments and retransmits all information received on one side onto the other.

hh. Router: A device that connects two channels and controls traffic between the channels by retransmitting signals received from one subnet onto the other based on the signal destination. Routers are used to subdivide a control network and to control bandwidth usage.

ii. Segment: A 'single' section of a control network that contains no repeaters or routers. There is generally a limit on the number of devices on a segment, and this limit is dependent on the topology/media and device type. For example, a TP/FT-10 network with locally powered devices is limited to 64 devices per segment.

jj. Service Pin: A hardware push-button on a device which causes the device to broadcast a message (over the control network) containing its Node ID and Program ID. This broadcast can also be initiated via software.

kk. Standard Configuration Property Type (SCPT): Pronounced 'skip-it'. A standard format type (maintained by LonMark International) for Configuration Properties.

ll. Standard Network Variable Type (SNVT): Pronounced 'snivet'. A standard format type (maintained by LonMark International) used to define data information transmitted and received by the individual nodes. The term SNVT is used in two ways. Technically it is the acronym for Standard Network Variable Type, and is sometimes used in this manner. However, it is often used to indicate the network variable itself (i.e. it can mean "a network variable of a standard network variable type"). In general, the intended meaning should be clear from the context.

mm. Subnet: Consists of a logical grouping of up to 127 nodes, where the logical grouping is defined by node addressing. Each subnet is assigned a number which is unique within the Domain. See also Node Address.

nn. TP/FT-10: A Free Topology Twisted Pair network defined by CEA-709.3.

This is the most common media type for a CEA-709.1-D control network.

oo. TP/XF-1250: A high speed (1.25 Mbps) twisted pair, doubly-terminated bus network defined by the LonMark Interoperability Guidelines. This media is typically used only as a backbone media to connect multiple TP/FT-10 networks.

pp. UMCS Network: An IP network connecting multiple building control networks (BCNs) to the Monitoring and Control Software using the CEA-852-C standard.

qq. User-defined Configuration Property Type (UCPT): Pronounced 'u-keep-it'. A Configuration Property format type that is defined by the device manufacturer.

rr. User-defined Network Variable Type (UNVT): A network variable format defined by the device manufacturer. Note that UNVTs create non-standard communications (other vendor's devices may not correctly interpret it) and may close the system and therefore are not permitted by this specification.

1.3 SYSTEM DESCRIPTION

The Direct Digital Control (DDC) system shall be a complete system suitable for the control of the heating, ventilating and air conditioning (HVAC) and other building-level systems as specified and shown.

1.3.1 System Requirements

Systems installed under this specification shall have the following characteristics:

a. The control system shall be an open implementation of LonWorks technology using CEA-709.1-D as the communications protocol and using LonMark Standard Network Variable Types as defined in LonMark SNVT List exclusively for communication over the network.

b. LonWorks Network Services (LNS) shall be used for all network management including addressing and binding of network variables.

Submit to the project site two copies of the complete, fully-commissioned, valid, as-built Final LNS database (including all LNS credits) for the complete control network provided under this specification as a Technical Data Package. Each copy shall be on optical disk and shall be clearly marked identifying it as the LNS Database for the work covered under this specification and with the date of the most recent database modification. The submitted LNS Database shall consist of the entire folder structure of the LNS database (e.g. c:\Lm\DB\{database name}. All devices shall be on-line and commissioned into the LNS database.

c. The hardware shall perform the control sequences as specified and shown and provide control of the equipment as specified and shown.

d. Control sequence logic shall reside in DDC hardware in the building.

The building control network shall not be dependent upon connection to a Utility Monitoring and Control System (UMCS) for performance of control sequences in this specification. The hardware shall, to the greatest extent practical, perform the sequences without reliance on the building network.

e. The hardware shall be installed such that individual control equipment can be replaced by similar control equipment from other equipment manufacturers with no loss of system functionality.

f. All necessary documentation, configuration information, configuration tools, programs, drivers, and other software shall be licensed to and otherwise remain with the Government such that the Government or their agents are able to perform repair, replacement, upgrades, and expansions of the system without subsequent or future dependence on the Contractor.

g. Provide sufficient documentation and data, including rights to documentation and data, such that the Government or their agents can execute work to perform repair, replacement, upgrades, and expansions of the system without subsequent or future dependence on the Contractor.

h. Hardware shall be installed and configured such that the Government or their agents are able to perform repair, replacement, and upgrades of individual hardware without further interaction with the Contractor.

i. Control hardware shall be installed and configured to provide all input and output Standard Network Variables (SNVTs) as shown and as needed to meet the requirements of this specification.

j. All DDC devices installed under this specification shall communicate via CEA-709.1-D. The control system shall be installed such that a

SNVT output from any node on the network can be bound to any other node in the domain.

1.3.2 Verification of Dimensions

After becoming familiar with all details of the work, verify all dimensions in the field, and advise the Contracting Officer of any discrepancy before performing any work.

1.3.3 Drawings

The Government will not indicate all offsets, fittings, and accessories that may be required on the drawings. Carefully investigate the mechanical, electrical, and finish conditions that could affect the work to be performed, arrange such work accordingly, and provide all work necessary to meet such conditions.

1.3.4 Data Packages/Submittals Requirements

Technical data packages consisting of technical data and computer software (meaning technical data which relates to computer software) which are specifically identified in this project and which may be defined/required in other specifications shall be delivered strictly in accordance with the CONTRACT CLAUSES and in accordance with the Contract Data Requirements List, DD Form 1423. Data delivered shall be identified by reference to the particular specification paragraph against which it is furnished. All submittals not specified as technical data packages are considered 'shop drawings' under the Federal Acquisition Regulation Supplement (FARS) and shall contain no proprietary information and be delivered with unrestricted rights.

1.4 SUBMITTALS

Government approval is required for submittals with a "G" designation;

submittals having an "I" designation are for information only. Designation following the "G" or "I" designation identifies the office that will review the submittal for the Government. Submit the following in accordance with Section 01 33 00 SUBMITTAL PROCEDURES, and TABLE I. PROJECT SEQUENCING:

SD-02 Shop Drawings

DDC Contractor Design Drawings; G, NWK Draft As-Built Drawings; I, NWK Final As-Built Drawings; I,NWK

SD-03 Product Data

Manufacturer's Catalog Data; I, NWK Programming Software; I, NWK GPPC Application Programs; I, NWK AGC Application Programs; I, NWK XIF files; I, NWK Draft LNS Database; I, NWK Final LNS Database; I, NWK LNS Plug-in; I, NWK

SD-06 Test Reports

Existing Conditions Report; G, NWK

Start-Up and Start-Up Testing Report; G, C Pre-Construction QC Checklist; I, NWK Post-Construction QC Checklist; I, NWK

PVT Report; I, NWK

SD-10 Operation and Maintenance Data

Operation and Maintenance (O&M) Instructions:, Data Package 3; G, C

Submit Operation and Maintenance data in accordance with Section 01 78 23.00 28, OPERATION AND MAINTENANCE DATA and as specified herein.

SD-11 Closeout Submittals

Closeout QC Checklist; G, C

1.5 PROJECT SEQUENCING

TABLE I: PROJECT SEQUENCING lists the sequencing of submittals as specified in paragraph SUBMITTALS (denoted by an 'S' in the 'TYPE' column) and activities as specified in PART 3: EXECUTION (denoted by an 'E' in the 'TYPE' column). TABLE I does not specify overall project milestone and completion dates; these dates are specified in the contract documents.

a. Sequencing for submittals: The sequencing specified for submittals is the deadline by which the submittal shall be initially submitted to the Government. Following submission there will be a Government review period as specified in Section 01 33 00 SUBMITTAL PROCEDURES. If the submittal is not accepted by the Government, revise the submittal and resubmit it to the Government within 14 days of notification that the submittal has been rejected. Upon resubmittal there will be an additional Government review period. If the submittal is not accepted the process repeats until the submittal is accepted by the Government.

b. Sequencing for Activities: The sequencing specified for activities indicates the earliest the activity may begin.

c. Abbreviations: In TABLE I the abbreviation AAO is used for 'after approval of' and 'ACO' is used for 'after completion of'.

TABLE I. PROJECT SEQUENCING

ITEM # TYPE DESCRIPTION SEQUENCING (START

OF ACTIVITY or DEADLINE

FOR SUBMITTAL)

1 S Existing Conditions Report

2 S DDC Contractor Design Drawings

3 S Manufacturer's Catalog Data

4 S Network Bandwidth Usage Calculations

TABLE I. PROJECT SEQUENCING

5 S Pre-construction QC Checklist

6 E Install Building Control System

AAO #1 thru #5

7 E Start-Up and Start-Up Testing

ACO #6

8 S Post-Construction QC Checklist

30 days ACO #7

9 S Programming Software 15 days ACO #7

10 S XIF Files 15 days ACO #7

11 S LNS Plug-ins 15 days ACO #7

12 S Start-Up and Start-Up Testing Report

15 days ACO #7

13 S Draft As-Built Drawings 15 days ACO #7

14 S Draft LNS Database 7 days ACO #7

15 S PVT Procedures 14 days before schedule start of #16 and AAO #12

16 E PVT AAO #13, #14 and #15

17 S PVT Report 7 days ACO #16

18 S GPPC Application Programs and AGC Application Programs

7 days AAO #17

19 S Final LNS Database 7 days AAO #17

20 S Final As-Built Drawings 30 days AAO #17

21 S O&M Instructions AAO #20

22 S Training Documentation AAO #12 and 7 days before scheduled start of #23

23 E Training AAO #21 and #22

24 S Closeout QC Checklist ACO #23

1.6 QUALITY CONTROL (QC) CHECKLISTS

The Contractor's Chief Quality Control (QC) Representative shall complete the QC Checklist in APPENDIX A and submit 4 copies of the Pre-Construction QC Checklist, 4 copies of the Post-Construction QC Checklist and 4 copies of the Closeout QC Checklist. The QC Representative shall verify each item in the Checklist and initial in the provided area to indicate that the requirement has been met. The QC Representative shall sign and date the Checklist prior to submission to the Government.

The QC Checklist in APPENDIX A is available in electronic format for use with this section at:

http://www.wbdg.org/ccb/NAVGRAPH/graphtoc.pdf

1.7 DELIVERY AND STORAGE

Products shall be stored with protection from the weather, humidity, and temperature variations, dirt and dust, and other contaminants, within the storage condition limits published by the equipment manufacturer.

1.8 OPERATION AND MAINTENANCE (O&M) INSTRUCTIONS

Submit 2 copies of the Operation and Maintenance Instructions, indexed and in booklet form. The Operation and Maintenance Instructions shall be a single volume or in separate volumes, and may be submitted as a Technical Data Package. The HVAC control System Operation and Maintenance Instructions shall include:

a. "Manufacturer Data Package 3" as specified in Section 01 78 23.00 28 OPERATION AND MAINTENANCE DATA for each piece of control equipment.

b. "Manufacturer Data Package 4" as described in Section 01 78 23.00 28 OPERATION AND MAINTENANCE DATA for all air compressors.

c. HVAC control system sequences of operation formatted as specified.

d. Procedures for the HVAC system start-up, operation and shut-down including the manufacturer's supplied procedures for each piece of equipment, and procedures for the overall HVAC system.

e. As-built HVAC control system detail drawings formatted as specified.

f. A list of the configuration settings for all devices.

g. Routine maintenance checklist. The routine maintenance checklist shall be arranged in a columnar format. The first column shall list all installed devices, the second column shall state the maintenance activity or state no maintenance required, the third column shall state the frequency of the maintenance activity, and the fourth column for additional comments or reference.

h. Qualified service organization list.

i. Start-Up and Start-Up Testing Report.

j. Performance Verification Test (PVT) Procedures and Report.

1.9 SURGE PROTECTION

1.9.1 Power-Line Surge Protection

Equipment connected to ac circuits shall be protected against or withstand power-line surges. Equipment protection shall meet the requirements of IEEE C62.41. Fuses shall not be used for surge protection.

1.9.2 Surge Protection for Transmitter and Control Wiring

DDC hardware shall be protected against or withstand surges induced on control and transmitter wiring installed outdoors and as shown. The equipment protection shall be protected against the following two waveforms:

a. A waveform with a 10-microsecond rise time, a 1,000-microsecond decay time and a peak current of 60 amps.

b. A waveform with an 8-microsecond rise time, a 20-microsecond decay time and a peak current of 500 amperes.

1.10 INPUT MEASUREMENT ACCURACY

Sensors, transmitters and DDC Hardware shall be selected, installed and configured such that the maximum error of the measured value at the SNVT output of the DDC hardware is less than 105 percent of the maximum allowable error specified for the sensor or instrumentation.

PART 2 PRODUCTS

PART 2 of this specification covers requirements for Products (equipment).

Installation requirements for these products are covered in PART 3 of this specification.

2.1 EQUIPMENT

2.1.1 General Requirements

Units of the same type of equipment shall be products of a single manufacturer. Each major component of equipment shall have the manufacturer's name and address, and the model and serial number in a conspicuous place. Materials and equipment shall be standard products of a manufacturer regularly engaged in the manufacturing of these and similar products. The standard products shall have been in a satisfactory commercial or industrial use for two years prior to use on this project.

The two year use shall include applications of equipment and materials under similar circumstances and of similar size. DDC Hardware not meeting the two-year field service requirement shall be acceptable provided it has been successfully used by the Contractor in a minimum of two previous projects. The equipment items shall be supported by a service organization. Items of the same type and purpose shall be identical, including equipment, assemblies, parts and components. Manufacturer's catalog data sheets documenting compliance with product specifications shall be submitted as specified for each product installed under this specification.

2.1.2 Operation Environment Requirements

Unless otherwise specified, all products shall be rated for continuous operation under the following conditions:

2.1.2.1 Pressure

Pressure conditions normally encountered in the installed location.

2.1.2.2 Vibration

Vibration conditions normally encountered in the installed location.

2.1.2.3 Temperature

2.1.2.3.1 Products Installed Indoors

Ambient temperatures in the range of 32 to 112 degrees F and temperature conditions outside this range normally encountered at the installed location.

2.1.2.3.2 Products Installed Outdoors or in Unconditioned Indoor Spaces

Ambient temperatures in the range of -35 to +151 degrees F and temperature conditions outside this range normally encountered at the installed location.

2.1.2.4 Humidity

10 to 95 percent relative humidity, noncondensing and humidity conditions outside this range normally encountered at the installed location.

2.2 ENCLOSURES AND WEATHERSHIELDS

2.2.1 Enclosures

Enclosures shall meet the following minimum requirements. Enclosures supplied as an integral (pre-packaged) part of another product are acceptable.

2.2.1.1 Outdoors

Enclosures located outdoors shall meet NEMA 250 Type 4 requirements.

2.2.1.2 Mechanical and Electrical Rooms

Enclosures located in mechanical or electrical rooms shall meet NEMA 250 Type 2 requirements.

2.2.1.3 Other Locations

Enclosures in other locations including but not limited to occupied spaces, above ceilings, and plenum returns shall meet NEMA 250 Type 1 requirements.

2.2.2 Weathershields

Weathershields for sensors located outdoors shall prevent the sun from directly striking the sensor. The weathershield shall be provided with adequate ventilation so that the sensing element responds to the ambient conditions of the surroundings. The weathershield shall prevent rain from directly striking or dripping onto the sensor. Weathershields installed near outside air intake ducts shall be installed such that normal outside air flow does not cause rainwater to strike the sensor. Weathershields shall be constructed of galvanized steel painted white, unpainted aluminum, aluminum painted white, or white PVC.

2.3 NETWORK HARDWARE

2.3.1 CEA-709.1-D Network Routers

CEA-709.1-D Routers (including routers configured as repeaters) shall meet the requirements of CEA-709.1-D and shall provide connection between two or more CEA-709.3 TP/FT-10 channels or between two or more CEA-709.3 TP/FT-10 channels and a TP/XF-1250 channel.

2.3.2 Gateways

Gateways shall perform bi-directional protocol translation from one non- CEA-709.1-D protocol to CEA-709.1-D. Gateways shall incorporate a network connection to a TP/FT-10 network in accordance with CEA-709.3 and a connection for a non-CEA-709.1-D network.

2.3.3 CEA-709.1-D to IP Router

CEA-709.1-D to IP Routers shall perform layer 3 routing of CEA-709.1-D packets over an IP network in accordance with CEA-852-C. The router shall provide the appropriate connection to the IP network and connections to the CEA-709.3 TP/FT-10 or TP/XF-1250 network. CEA-709.1-D to IP Routers shall support the Dynamic Host Configuration Protocol (DHCP; IETF RFC 4361 for IP configuration and the use of an CEA-852-C Configuration Server (for CEA-852-C configuration), but shall not rely on these services for configuration. CEA-709.1-D to IP Routers shall be capable of manual configuration via a console RS-232 port.

2.4 WIRE AND CABLE

All wire and cable shall meet the requirements of NFPA 70 and NFPA 90A in addition to the requirements of this specification.

2.4.1 Terminal Blocks

Terminal blocks which are not integral to other equipment shall be insulated, modular, feed-through, clamp style with recessed captive screw-type clamping mechanism, shall be suitable for rail mounting, and shall have end plates and partition plates for separation or shall have enclosed sides.

2.4.2 Control Network Wiring

Control network wiring shall be twisted pair in accordance with CEA-709.3.

2.4.3 Control Wiring for Binary Signals

Control wiring for binary signals shall be 18 AWG copper and shall be rated for 300-volt service.

2.4.4 Control Wiring for 120-Volt Circuits

Wiring for 120-volt circuits shall be 18 AWG or thicker stranded copper and shall be rated for 600-volt service.

2.4.5 Control Wiring for Analog Signals

Control Wiring for Analog Signals shall be 18 AWG, copper, single- or multiple-twisted, minimum 2 inch lay of twist, 100 percent shielded pairs, and shall have a 300-volt insulation. Each pair shall have a 20 AWG tinned-copper drain wire and individual overall pair insulation. Cables shall have an overall aluminum-polyester or tinned-copper cable-shield tape, overall 20 AWG tinned-copper cable drain wire, and overall cable insulation.

2.4.6 Transformers

Transformers shall be UL 5085-3 approved. Transformers shall be sized so that the connected load is no greater than 80 percent of the transformer rated capacity.

2.5 AUTOMATIC CONTROL VALVES

Valves shall have stainless-steel stems and stuffing boxes with extended necks to clear the piping insulation. Valve bodies shall meet ASME B16.34 or ASME B16.15 pressure and temperature class ratings based on the design operating temperature and 150 percent of the system design operating pressure. Unless otherwise specified or shown, valve leakage shall meet FCI 70-2 Class IV leakage rating (0.01 percent of valve Kv). Unless otherwise specified or shown, valves shall have globe-style bodies. Unless otherwise specified:

a. bodies for valves smaller than 2 inches shall be brass or bronze, with threaded or union ends

b. bodies for 2 inch valves shall have threaded ends

c. bodies for valves 2 to 3 inches shall be of brass, bronze or iron.

d. bodies for valves larger than 2 inches shall be provided with flanged-end connections.

e. for modulating applications, valve Kv (Cv) shall be within 100 to 125 percent of the Kv (Cv) shown.

f. for two position applications (where the two positions are full open and full closed) the Kv (Cv) shall be the largest available for the valve size.

g. valve and actuator combination shall be normally open or normally closed as shown.

2.5.1 Ball Valves

Balls shall be stainless steel or nickel plated brass. Valves shall have blow-out proof stems.

2.5.2 Butterfly Valves

Butterfly valves shall be threaded lug type suitable for dead-end service and modulation to the fully-closed position, with carbon-steel bodies or with ductile iron bodies in accordance with ASTM A536. Butterfly valves shall have non-corrosive discs, stainless steel shafts supported by bearings, and EPDM seats suitable for temperatures from -20 to +250 degrees F. The rated Kv (Cv) for butterfly valves shall be the value Kv (Cv) at 70 percent (60 degrees) open position. Valve leakage shall meet FCI 70-2 Class VI leakage rating.

2.5.3 Two-Way Valves

Two-way modulating valves used for liquids shall have an equal-percentage characteristic. Two-way modulating valves used for steam shall have a linear characteristic.

2.5.4 Three-Way Valves

Three-way modulating valves shall provide equal percentage flow control with constant total flow throughout full plug travel.

2.5.5 Duct-Coil and Terminal-Unit-Coil Valves

Control valves with either flare-type or solder-type ends shall be provided for duct or terminal-unit coils. Flare nuts shall be provided for each flare-type end valve.

2.5.6 Valves for Chilled-Water, Condenser-Water, and Glycol Service

Valve internal trim shall be Type 316 stainless steel. Valves 4 inches and larger shall be butterfly valves.

2.6 DAMPERS

2.6.1 Damper Assembly

A single damper section shall have blades no longer than 48 inch and shall be no higher than 72 inch. Maximum damper blade width shall be 8 inch.

Larger sizes shall be made from a combination of sections. Dampers shall be steel, or other materials where shown. Flat blades shall be made rigid by folding the edges. Blade-operating linkages shall be within the frame so that blade-connecting devices within the same damper section shall not be located directly in the air stream. Damper axles shall be 1/2 inch minimum, plated steel rods supported in the damper frame by stainless steel or bronze bearings. Blades mounted vertically shall be supported by thrust bearings. Pressure drop through dampers shall not exceed 0.04 inches water gauge at 1,000 ft/min in the wide-open position. Frames shall not be less than 2 inch in width. Dampers shall be tested in accordance with AMCA 500-D.

2.6.2 Operating Linkages

Operating links external to dampers, such as crank arms, connecting rods, and line shafting for transmitting motion from damper actuators to dampers, shall withstand a load equal to at least 300 percent of the maximum required damper-operating force without deforming. Rod lengths shall be adjustable. Links shall be brass, bronze, zinc-coated steel, or stainless steel. Working parts of joints and clevises shall be brass, bronze, or stainless steel. Adjustments of crank arms shall control the open and closed positions of dampers.

2.6.3 Damper Types

2.6.3.1 Flow Control Dampers

Outside air, return air, relief air, exhaust, face and bypass dampers shall be provided where shown and shall be parallel-blade or opposed blade type.

Blades shall have interlocking edges. The channel frames of the dampers shall be provided with jamb seals to minimize air leakage. Outside air damper seals shall be suitable for an operating temperature range of -40 to

+167 degrees F. Dampers shall be rated at not less than 2000 ft/min air velocity.

2.6.3.2 Mechanical Rooms and Other Utility Space Ventilation Dampers

Utility space ventilation dampers shall be as shown. Dampers shall be rated at not less than 1500 ft/min air velocity.

2.6.3.3 Smoke Dampers

Smoke-damper and actuator assembly shall meet the current requirements of NFPA 90A, UL 555, and UL 555S. Combination fire and smoke dampers shall be rated for 250 degrees F Class II leakage per UL 555S.

2.7 SENSORS AND INSTRUMENTATION

fUnless otherwise specified, sensors and instrumentation shall incorporate an integral transmitter or be provided with a transmitter co-located with the sensor. Sensors and instrumentation, including their transmitters, shall meet the specified accuracy and drift requirements at the input of the connected DDC Hardware's analog-to-digital conversion. Sensors and instrumentation, including their transmitters, shall meet or exceed the specified range.

2.7.1 Transmitters

The transmitter shall match the characteristics of the sensor.

Transmitters providing analog values shall produce a linear 4-20 mAdc, 0-10 Vdc or SNVT output corresponding to the required operating range and shall have zero and span adjustment. Transmitters providing binary values shall have dry contacts or SNVT output. Transmitters with SNVT output are Application Specific Controllers (ASCs) and shall meet all ASC requirements. (note: ASCs are specified in paragraph DIRECT DIGITAL CONTROL

(DDC) HARDWARE)

2.7.2 Temperature Sensors

2.7.2.1 Sensor Ranges and Accuracy

Temperature sensors may be provided without transmitters. Temperature sensors, including transmitter if used, shall have minimum operating ranges, minimum accuracy and maximum drift as specified below for the application:

2.7.2.1.1 Conditioned Space Temperature

2.7.2.1.1.1 Operating Range

40 to 95 degrees F

2.7.2.1.1.2 Accuracy

+/- 1 degree F over the operating range

2.7.2.1.1.3 Drift

Maximum 1 degree F per year.

2.7.2.1.2 Unconditioned Space Temperature

2.7.2.1.2.1 Operating Range

20 to 150 degrees F.

2.7.2.1.2.2 Accuracy

+/- 1 degree F over the range of 30 to 131 degrees F and +/- 4 degrees F over the rest of the operating range.

2.7.2.1.2.3 Drift

Maximum 1 degree F per year.

2.7.2.1.3 Duct Temperature

2.7.2.1.3.1 Operating Range

40 to 140 degrees F.

2.7.2.1.3.2 Accuracy

+/- 2 degrees F.

2.7.2.1.3.3 Drift

Maximum 2 degrees F per year.

2.7.2.1.4 Outside Air Temperature

2.7.2.1.4.1 Operating Range

-50 to 125 degrees F.

2.7.2.1.4.2 Accuracy

a. +/- 2 degrees F over the range of -30 to +130 degrees F.

b. +/- 1 degree F over the range of 30 to 100 degrees F.

2.7.2.1.4.3 Drift

Maximum 1 degree…