Specifications - City of Montpelier, Vermont

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Title:Montpelier District HeatingCity of Montpelier, VT15891 – Metal Ductwork & AccessoriesIssue Date:September 28, 2012Page #:15 of 19A. General: Assemble and install ductwork in accordance with recognized industrypractices which will achieve airtight and noiseless (no objectionable noise)systems, capable of performing each indicated service. Install each run withminimum number of joints. Align ductwork accurately at connections, within1/8" misalignment tolerance and with internal surfaces smooth. Support ductsrigidly with suitable ties, braces, hangers and anchors of type which will holdducts truetoshape and to prevent buckling. Support vertical ducts at every floor.B. Routing: Locate ductwork runs, except as otherwise indicated, vertically andhorizontally and avoid diagonal runs wherever possible. Locate runs as indicatedby drawings, details and notations or, if not otherwise indicated, run ductwork inshortest route which does not obstruct useable space or block access for servicingbuilding and its equipment. Hold ducts close to walls, overhead construction,columns, and other structural and permanent enclosure elements of building.Limit clearance to 1/2" where furring is shown for enclosure or concealment ofducts, but allow for insulation thickness, if any. Where possible, locate insulatedductwork for 1" clearance outside of insulation. Wherever possible in finishedand occupied spaces, conceal ductwork from view, by locating in mechanicalshafts, hollow wall construction or above suspended ceilings. Do not encasehorizontal runs in solid partitions, except as specifically shown. Coordinatelayout with suspended ceiling and lighting layouts and similar finished work.C. Electrical Equipment Spaces: Do not route ductwork through transformer vaultsand electrical equipment spaces and enclosures.D. Penetrations: Where ducts pass through interior partitions and exterior walls, andare exposed to view, conceal space between construction opening and duct or ductinsulation with sheet metal flanges of same gauge as duct. Overlap opening on 4sides by at least 1½". Fasten to duct or substrate.METAL DUCTWORK AND ACCESSORIES 15891 15
Title:Montpelier District HeatingCity of Montpelier, VT15891 – Metal Ductwork & AccessoriesIssue Date:September 28, 2012Page #:16 of 19E. Coordination: Coordinate duct installations with installation of accessories,dampers, coil frames, equipment, controls and other associated work of ductworksystem.F. Installation: Install metal ductwork in accordance with SMACNA HVAC DuctConstruction Standards. Provide all auxiliary steel for attachment of ductsupports to the building structure.G. Volume Dampers: Prior to the installation of the sheet metal ducts, the sheetmetal contractor shall coordinate with the balancing contractor to insure volumedampers are located in locations where the balancing contractor can effectivelyperform his trade.3.3 INSTALLATION OF FLEXIBLE DUCTSA. Maximum Length: For any duct run using flexible ductwork, do not exceed 6'0"extended length.B. Installation: Install in accordance with Section III of SMACNA's, “HVAC DuctConstruction Standards, Metal and Flexible, Third Edition (2005)”.1. Bends shall be made with not less than 1 duct diameter centerline radius.2. Duct shall be supported at the manufacturer’s recommended intervals butnot less than 5 feet. Maximum permissible sag of 6” between supports.3. Duct hangers in contact with the flexible duct shall not be less than 1”wide and shall not reduce the internal diameter of the duct.4. Factory installed suspension systems that are integral to the flexible ductare acceptable for hanging when the manufacturer’s procedures arefollowed.METAL DUCTWORK AND ACCESSORIES 15891 16
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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:15100 - ValvesMontpelier Dist
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Page 465 and 466: Montpelier District HeatingCity of
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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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