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1、HVACGuideSpecificationsConstantVolumeApplicationSizeRange:5to20TonsCarrierModelNumber:50BYNPart1—General1.01SYSTEMDESCRIPTIONIndoorpackagedverticalair-cooledcoolingunitusinghermeticscrollcompressorsandbuilt-incondenserfanforcoolingduty.Unitshalldischargesupplyairverticallyorhor
2、izontallyandcondenserairhorizontallyasshownoncontractdrawings.1.02QUALITYASSURANCEA.UnitsshallberatedinaccordancewithARIStandard210/240or340/360asappropriate.B.UnitshallbedesignedtoconformtoANSI/ASHRAE15,latestrevisionsafetycode,andULStandard1995,andshallbeULlistedunderbothAmer
3、icanandCanadianStandards.C.UnitshallbebuiltinanISO9001:2000certifiedmanufacturingfacilityandshallbefullyrun-tested.D.Insulation,adhesive,andlinersystemshallmeetNFPA90Arequirementsforflamespreadandsmokegeneration.1.03DELIVERY,STORAGE,ANDHANDLINGUnitsshallbestoredandhandledaccord
4、ingtomanufacturer’srecommendations.Part2—Products2.01EQUIPMENTA.General:Factory-assembled,single-piece,air-cooledcoolingunit.Unitshallconsistofscrollrefrigerantcompressor(s),indoorfansectionwithbeltdrivecentrifugalfansandmotor,evaporatorcoilsectionwithdirectexpansioncoilanddrai
5、npan,air-cooledcondenserfansectionwithbeltdrivecentrifugalfansandmotor,factorywiring,pipingandcontrols,andasystemchargeofrefrigerant(R-22).Unitmaybeusedwithorwithoutreturnductwork.B.UnitCabinet:1.Cabinetshallbeconstructedofminimum18gagezincsurfacealloyedsteelwithabakedenamelfin
6、ish.UnitshallbecapableofwithstandingASTMB117500-hoursaltspraytest.2.Cabinetshallbefullyinsulated.Evaporatorsectionshallhaveafullmetallinercoveringallinsulation,andcondensersectionshallhavefullsoundattenuatinginsulation.UnitsshallbecapableofwithstandingARIinsulatingefficiencytes
7、tatminimumairflowwithoutcabinetsweating.3.Unitdrainpanshallhavepositiveslopetothedraintopreventstandingwaterinpan.4.Panelsforservicingshallbeeasilyremovableusingasinglewrenchsize.5.Flangesshallbeprovidedonallevaporatorandcondenserairconnectionsforattachmentofductwork.6.Unitslar
8、gerthan80in.tallshallbeabletobesplitintosectionsnomore
