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1、RelatedCommercialResourcesCHAPTER3CENTRALCOOLINGANDHEATINGSystemCharacteristics...............................................................3.1SpaceConsiderations.................................................................3.7DesignConsiderations......................................
2、.........................3.2AutomaticControlsandBuildingManagementEquipment..................................................................................3.3Systems...................................................................................3.8DistributionSystems..................
3、................................................3.6MaintenanceManagementSystems...........................................3.9Acoustic,Vibration,andSeismicConsiderations......................3.6BuildingSystemCommissioning................................................3.9CENTRALcoolingand/o
4、rheatingplantsgeneratecoolingMultipletypesofequipmentandfuelsourcesmaybecombinedand/orheatinginonelocationfordistributiontomultipleloca-inoneplant.Theheatingandcoolingenergymaybeacombinationtionsinonebuildingoranentirecampusorneighborhood,andofelectricity,naturalgas,oil,coal,solar,geotherm
5、al,etc.Thisrepresentapproximately25%ofHVACsystemapplications.Cen-energyisconvertedintochilledwater,hotwater,orsteamthatisdis-tralcoolingandheatingsystemsareusedinalmostallclassesoftributedthroughthefacilityforairconditioning,heating,andpro-buildings,butparticularlyinverylargebuildingsandco
6、mplexesorcesses.Theoperating,maintenance,andfirstcostsofallthesewherethereisahighdensityofenergyuse.Theyareespeciallyoptionsshouldbediscussedwiththeownerbeforefinalselection.suitedtoapplicationswheremaximizingequipmentservicelifeandWhencombiningheatinggenerationsystems,itisimportanttonoteu
7、singenergyandoperationalworkforceefficientlyareimportant.thepresenceofdirect-firingcombustionsystemsorchilled-waterThefollowingfacilitytypesaregoodcandidatesforcentralcool-productionsystemsusingHFCorHCFCrefrigerants,becausetheingand/orheatingsystems:safetyrequ
