Section 23 34 00HVAC FANSWord格式.docx

Section 23 34 00HVAC FANSWord格式.docx

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D.Section230511,COMMONWORKRESULTSFORHVACANDSTEAMGENERATION.

E.Section230512,GENERALMOTORREQUIREMENTSFORHVACANDSTEAMGENERATIONEQUIPMENT.

F.Section230541,NOISEANDVIBRATIONCONTROLFORHVACPIPINGANDEQUIPMENT.

G.Section230593,TESTING,ADJUSTING,ANDBALANCINGFORHVAC.

H.Section230923,DIRECT-DIGITALCONTROLSYSTEMFORHVAC.

I.Section237300,INDOORCENTRAL-STATIONAIR-HANDLINGUNITS.

J.Section238216,AIRCOILS.

K.Section262911,LOW-VOLTAGEMOTORSTARTERS.

1.3QUALITYASSURANCE

A.Refertoparagraph,QUALITYASSURANCE,inSection230511,COMMONWORKRESULTSFORHVACANDSTEAMGENERATION.

B.FansandpowerventilatorsshallbelistedinthecurrenteditionofAMCA26l,andshallbeartheAMCAperformanceseal.

C.OperatingLimitsforCentrifugalFans:

AMCA99（ClassI,II,andIII）.

D.Fansandpowerventilatorsshallcomplywiththefollowingstandards:

l.TestingandRating:

AMCA2l0.

2.SoundRating:

AMCA300.

E.VibrationToleranceforFansandPowerVentilators:

Section230541,NOISEANDVIBRATIONCONTROLFORHVACPIPINGANDEQUIPMENT.

F.PerformanceCriteria:

l.Thefanscheduleshallshowthedesignairvolumeandstaticpressure.SelectthefanmotorHPbyincreasingthefanBHPby10percenttoaccountforthedrivelossesandfieldconditions.

2.Selectthefanoperatingpointasfollows:

a.ForwardCurveandAxialFlowFans:

Righthandsideofpeakpressurepoint

b.AirFoil,BackwardInclined,orTubular:

Atornearthepeakstaticefficiency

G.SafetyCriteria:

Providemanufacturer'

sstandardscreenonfaninletanddischargewhereexposedtooperatingandmaintenancepersonnel.

H.CorrosionProtection:

1.Exceptforfansinfumehoodexhaustservice,allsteelshallbemillgalvanized,orphosphatizedandcoatedwithminimumtwocoats,corrosionresistantenamelpaint.Manufacturerspaintandpaintsystemshallmeettheminimumspecificationsof:

ASTMD1735waterfog;

ASTMB117saltspray;

ASTMD3359adhesion;

andASTMG152andG153forcarbonarclightapparatusforexposureofnon-metallicmaterial.

2.Fansforgeneralpurposefumehoods,orchemicalhoods,andradioisotopehoodsshallbeconstructedofmaterialscompatiblewiththechemicalsbeingtransportedintheairthroughthefan. 

I.Sparkresistantconstruction:

Ifflammablegas,vapororcombustibledustispresentinconcentrationsabove20%oftheLowerExplosiveLimit（LEL）,thefanconstructionshallbeasrecommendedbyAMCA'

sClassificationforSparkResistantConstruction.Drivesetshallbecomprisedofnon-staticbeltsforuseinanexplosive.

1.4SUBMITTALS

A.SubmitinaccordancewithSection01 

33 

23,SHOPDRAWINGS,PRODUCTDATA,andSAMPLES.

B.ManufacturersLiteratureandData:

l.Fansections,motorsanddrives.

2.Centrifugalfans,motors,drives,accessoriesandcoatings.

a.Inlinecentrifugalfans.

b.TubularCentrifugalFans.

c.Upblastkitchenhoodexhaustfans.

d.Industrialfans.

e.Utilityfansandventsets.

3.Prefabricatedroofcurbs.

4.Powerroofandwallventilators.

5.Centrifugalceilingfans.

6.Propellerfans.

7.Packagedhoodmakeupairunits.

8.Vaneaxialfans.

9.Tube-axialfans.

10.Aircurtainunits.

C.CertifiedSoundpowerlevelsforeachfan.

D.Motorratingstypes,electricalcharacteristicsandaccessories.

E.Roofcurbs.

F.Beltguards.

G.MaintenanceandOperatingmanualsinaccordancewithSection010000,GENERALREQUIREMENTS.

H.Certifiedfanperformancecurvesforeachfanshowingcubicfeetperminute（CFM）versusstaticpressure,efficiency,andhorsepowerfordesignpointofoperation.

1.5APPLICABLEPUBLICATIONS

A.Thepublicationslistedbelowformapartofthisspecificationtotheextentreferenced.Thepublicationsarereferencedinthetextbythebasicdesignationonly.

B.AirMovementandControlAssociationInternational,Inc.（AMCA）:

9986StandardsHandbook

2l006LaboratoryMethodsofTestingFansforAerodynamicPerformanceRating

26l-09DirectoryofProductsLicensedtobeartheAMCACertifiedRatingsSealPublishedAnnually

30008ReverberantRoomMethodforSoundTestingofFans

C.AmericanSocietyforTestingandMaterials（ASTM）:

B11707aStandardPracticeforOperatingSaltSpray（Fog）Apparatus

D173508StandardPracticeforTestingWaterResistanceofCoatingsUsingWaterFogApparatus

D335908StandardTestMethodsforMeasuringAdhesionbyTapeTest

G152-06StandardPracticeforOperatingOpenFlameCarbonArcLightApparatusforExposureofNon-MetallicMaterials

G153-04StandardPracticeforOperatingEnclosedCarbonArcLightApparatusforExposureofNon-MetallicMaterials

D.NationalFireProtectionAssociation（NFPA）:

NFPA9608StandardforVentilationControlandFireProtectionofCommercialCookingOperations

E.NationalSanitationFoundation（NSF）:

3707AirCurtainsforEntranceWaysinFoodandFoodServiceEstablishments

F.UnderwritersLaboratories,Inc.（UL）:

181-2005FactoryMadeAirDuctsandAirConnectors

1.6extramaterials

A.Provideoneadditionalsetofbeltsforallbelt-drivenfans.

PART2PRODUCTS

2.1FANSECTION（CabinetFan）

RefertospecificationSection237300,INDOORCENTRAL-STATIONAIR-HANDLINGUNITS.

2.2CENTRIFUGALFANS

A.StandardsandPerformanceCriteria:

RefertoParagraph,QUALITYASSURANCE.RecordfactoryvibrationtestresultsonthefanorfurnishtotheContractor.

SPECWRITERNOTE:

CoordinateFanarrangementwiththeequipmentscheduleondrawings.

B.Fanarrangement,unlessnotedorapprovedotherwise:

l.DWDlfans:

Arrangement3.

2.SWSlfans:

Arrangementl,3,9orl0,//exceptforfumehood（H7orHl3）exhaustfansArrangement3shallnotbeacceptable.//

C.Construction:

WheeldiametersandoutletareasshallbeinaccordancewithAMCAstandards.

l.Housing:

Lowcarbonsteel,arcweldedthroughout,bracedandsupportedbystructuralchannelorangleirontopreventvibrationorpulsation,flangedoutlet,inletfullystreamlined.Provideliftingclips,andcasingdrain.Providemanufacturer'

sstandardaccessdoor.Provide12.5mm（1/2inches）wiremeshscreensforfaninletswithoutductconnections.

2.Wheel:

Steelplatewithdieformedbladesweldedorrivetedinplace,factorybalancedstaticallyanddynamically.

3.Shaft:

Designedtooperateatnomorethan70percentofthefirstcriticalspeedatthetopofthespeedrangeofthefansclass.

4.Bearings:

HeavydutyballorrollertypesizedtoproduceaBl0lifeofnotlessthan50,000hours,andanaveragefatiguelifeof200,000hours.Extendfilledlubricationtubesforinteriorbearingsorductedunitstooutsideofhousing.

5.Belts:

Oilresistant,non-sparkingandnon-static.

6.BeltDrives:

Factoryinstalledwithfinalalignmentbeltadjustmentmadeafterinstallation.

7.MotorsandFanWheelPulleys:

Adjustablepitchforusewithmotorsthrough15HP,fixedpitchforusewithmotorslargerthan15HP.Selectpulleyssothatpitchadjustmentisatthemiddleoftheadjustmentrangeatfandesignconditions.

8.Motor,adjustablemotorbase,driveandguard:

Furnishfromfactorywithfan.RefertoSection230511,COMMONWORKRESULTSFORHVACANDSTEAMGENERATIONforspecifications.Provideprotectivesheetmetalenclosureforfanslocatedoutdoors.

9.Furnishvariablespeedfanmotorcontrollerswhereshownonthedrawings.RefertoSection,MOTORSTARTERS.RefertoSection230511,COMMONWORKRESULTSFORHVACANDSTEAMGENERATIONforcontroller/motorcombinationrequirements.

D.InlineCentrifugalFans:

InadditiontotherequirementsofparagraphsAand2.2.C3thru2.2.C9,provideminimum18Gaugegalvanizedsteelhousingwithinletandoutletflanges,backwardinclinedaluminumcentrifugalfanwheel,boltedaccessdoorandsupportsasrequired.Motorsshallbefactorypre-wiredtoanexternaljunctionbox.//Providefactorywireddisconnectswitch.//

E.TubularCentrifugalFans:

InadditiontotherequirementsofparagraphsAand2.2.C2thru2.2.C9provide;

1.Housings:

Hotrolledsteel,onepiecedesign,incorporatingintegralguidevanes,motormounts,boltedaccesshatchandendflanges.Providespuninletbellandscreenforunductedinletandscreenforunductedoutlet.Provideweldedsteel,flangedinletandoutletconesforductedconnection.Providemountinglegsorsuspensionbracketsasrequiredforsupport.Guidevanesshallstraightenthedischargeairpatterntoprovidelinearflow.

F.IndustrialFans:

Usewherescheduledorinlieuofcentrifugalfansforlowvolumehighstaticservice.ConstructionspecificationsparagraphsAandCforcentrifugalfansshallapply.Providematerialhandlingflatbladetypefanwheel.

G.UtilityFans,VentSetsandSmallCapacityFans:

Classldesign,arcweldedhousing,spunintakecone.Applicableconstructionspecification,paragraphsAandC,forcentrifugalfansshallapplyforwheeldiameters300mm（l2inches）andlarger.RequirementforAMCAsealiswaivedforwheeldiameterslessthan300mm（l2inches）andhousingsmaybecastiron.

SPECWRITERNOTE:

1.DesignatethefansthatarerequiredtobeexplosionproofintheFanSchedule.

2.SelectAMCAA,BorCsparkresistantconstructionasrequiredforapplication.

H.SparkResistant/Explosion