Specifications - City of Montpelier, Vermont

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Montpelier District HeatingCity of Montpelier, VTIssue Date:September 28, 2012Title:15900 – Direct Digital Control SystemPage #:18 of 40d. Independent Program Modules. Operator shall be able to developindependently executing program modules that can disable, enable andexchange data with other program modules.e. Debugging and Simulation. Operator shall be able to step through theprogram observing intermediate values and results. Operator shall beable to adjust input variables to simulate actual operating conditions.Operator shall be able to adjust each step's time increment to observeoperation of delays, integrators, and other timesensitive control logic.Debugger shall provide error messages for syntax and for executionerrors.f. Conditional Statements. Operator shall be able to program conditionallogic using compound Boolean (AND, OR, and NOT) and relational(EQUAL, LESS THAN, GREATER THAN, NOT EQUAL)comparisons.g. Mathematical Functions. Language shall support floatingpoint addition,subtraction, multiplication, division, and square root operations, as wellas absolute value calculation and programmatic selection of minimumand maximum values from a list of values.h. Variables: Operator shall be able to use variable values in programconditional statements and mathematical functions.1.) Time Variables. Operator shall be able to use predefinedvariables to represent time of day, day of the week, month of theyear, and date. Other predefined variables or simple control logicshall provide elapsed time in seconds, minutes, hours, and days.Operator shall be able to start, stop, and reset elapsed timevariables using the program language.2.) System Variables. Operator shall be able to use predefinedvariables to represent status and results of Controller Softwareand shall be able to enable, disable, and change setpoints ofController Software as described in Controller Software section.G. Portable Operator's Terminal. Provide all necessary software to configure an IBMcompatible laptop computer for use as a Portable Operator's Terminal. Operator shall beable to connect configured Terminal to the system network or directly to each controllerfor programming, setting up, and troubleshooting.2.4 CONTROLLER SOFTWAREA. Building and energy management application software shall reside and operate insystem controllers. Applications shall be editable through operator workstation, webbrowser interface, or engineering workstation.B. System Security. See Paragraph 2.3.F.5 (Security) and Paragraph 2.3.F.15.c (OperatorActivity).DIRECT DIGITAL CONTROL SYSTEMS1597218
Montpelier District HeatingCity of Montpelier, VTIssue Date:September 28, 2012Title:15900 – Direct Digital Control SystemPage #:19 of 40C. Scheduling. See Paragraph 2.3.D.4 (View and Adjust Operating Schedules). Systemshall provide the following schedule options as a minimum:1. Weekly. Provide separate schedules for each day of the week. Each scheduleshall be able to include up to 5 occupied periods (5 startstop pairs or 10 events).2. Exception. Operator shall be able to designate an exception schedule for each ofthe next 365 days. After an exception schedule has executed, system shalldiscard and replace exception schedule with standard schedule for that day ofthe week.3. Holiday. Operator shall be able to define 24 special or holiday schedules ofvarying length on a scheduling calendar that repeats each year.D. System Coordination. Operator shall be able to group related equipment based onfunction and location and to use these groups for scheduling and other applications.E. Binary and Analog Alarms. See Paragraph 2.3.F.7 (Alarm Processing).F. Alarm Reporting. See Paragraph 2.3.F.9 (Alarm Reactions).G. Remote Communication. System shall automatically contact operator workstation orserver on receipt of critical alarms. If no network connection is available, system shalluse a modem connection.H. Sequencing. Application software shall sequence chillers, boilers, and pumps asspecified in 15910 Sequence of Operations.I. PID Control. System shall provide direct and reverseacting PID (proportionalintegralderivative) algorithms. Each algorithm shall have antiwindup and selectable controlledvariable, setpoint, and PID gains. Each algorithm shall calculate a timevarying analogvalue that can be used to position an output or to stage a series of outputs.J. Staggered Start. System shall stagger controlled equipment restart after power outage.Operator shall be able to adjust equipment restart order and time delay betweenequipment restarts.K. AntiShort Cycling. Binary output objects shall be protected from short cycling bymeans of adjustable minimum ontime and offtime settings.L. On and Off Control with Differential. System shall provide direct and reverseactingon and off algorithms with adjustable differential to cycle a binary output based on acontrolled variable and setpoint.2.5 CONTROLLERSA. General. Provide Building Controllers (BC), Advanced Application Controllers (AAC),Application Specific Controllers (ASC), Smart Actuators (SA), and Smart Sensors (SS)as required to achieve performance specified. Every device in the system whichexecutes control logic and directly controls HVAC equipment must conform to astandard BACnet Device profile as specified in ANSI/ASHRAE 135, BACnet Annex L.Unless otherwise specified, hardwired actuators and sensors may be used in lieu ofBACnet Smart Actuators and Smart Sensors.B. BACnet.DIRECT DIGITAL CONTROL SYSTEMS1597219
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Title:Project ManualMontpelier Dist
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CONSTRUCTION of a DISTRICT HEATING
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The City also reserves the right to
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NOTICE OF AWARDTO:_________________
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successors, and assigns.IN WITNESS
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ATTEST:____________________________
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Witness as to Principal____________
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CHANGE ORDER # _________CHANGE ORDE
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PAYMENT REQUEST FORMMontpelier Dist
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1.17. PROJECT 3 The undertaking to
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9. PATENTSof the PROJECT will resul
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creditors, or if a trustee or recei
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21.3.2.4. Personal Injury Liability
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26.3. The CONTRACTOR shall be fully
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• Install piping and fittings (in
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The only items to be excluded from
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Materials:• Purchase, shipment, f
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price per linear foot of trench. Pa
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Description:This item consists of a
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This item consists of all work nece
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Materials shall meet the requiremen
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Materials:Materials shall meet the
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Materials:• Shipping, transport,
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2) of the type specified will be pa
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Products.Method of Measurement:The
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Materials:• Extra pipe materials
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Bid Item 51 - Pre
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Materials shall meet the requiremen
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B. MaterialsMaterials shall meet th
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shall be made to the CONTRACTOR for
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Measurement shall be on an each bas
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use of crushed stone); taking and r
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B. MaterialsMaterials shall meet th
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Bid Item 75^ - In
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16. The Contractor shall be respons
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02511, Hot Mix Asphalt Paving and t
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The Contractor is hereby informed t
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BASE BIDNo Item Description UnitEst
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44 Pre9insulated Underground Hot Wa
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SERVICE LATERALS AND SPURS BIDNo It
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[13] Remove and Reset Granite Curb
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________________________ __________
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Montpelier District HeatingPROJECT
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DEEE0003071/003SPECIAL TERMS AND CO
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DEEE0003071/003a. Method of Payment
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DEEE0003071/003a. Requirements. The
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DEEE0003071/003applicable sections
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DEEE0003071/00321. NATIONAL ENVIRON
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DEEE0003071/003The Government has n
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DEEE0003071/003F. Protecting State
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DEEE0003071/003L. CertificationsWit
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DEEE0003071/003(C) Quantity;(D) Cos
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DEEE0003071/003(4) An Agreement bet
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DEEE0003071/003(D) Cost;(E) Time of
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DEEE0003071/003(c) Recipients agree
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DEEE0003071/003(a) Davis Bacon Act(
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DEEE0003071/003of Labor withhold or
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DEEE0003071/003submission of the
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DEEE0003071/003(6) Contracts and Su
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DEEE0003071/003this award. On behal
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DEEE0003071/003are federal governme
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Title:Montpelier District HeatingCi
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Title:Montpelier District Heating01
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Title:01340 - SubmittalsMontpelier
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Montpelier District HeatingCity of
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Title:02200 - EarthworkMontpelier D
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Title:16110 - RacewaysMontpelier Di
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Title:16450 $ GroundingMontpelier D
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Specifications - City of Montpelier, Vermont

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