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1、·UnitFifteenCommissioningofVariableAirVolumeSystems····WhatisCommissioning(Cx)?•Definition:“Aquality-focusedprocessforenhancingthedeliveryof
aproject.Theprocessfocusesonverifyingand
documentingthatthefacilityandallofitssystemsand
assembliesareplanned,designed,installed,tested,
2、
operated,andmaintainedtomeettheOwner’sProject
Requirements.”ASHRAEGuideline0-2005,TheCommissioningProcess····CommissioningPerson–Commissioningisoftenperformedbyanindependentthird-partyengineeringcompany.–Operatesasanowner’srepresentativetoinsurethe
installedsystemsmeetthe
own
3、ersrequirementsandthe
plansandspecifications–Usuallyhiredbytheowner,····sometimesbythearchitect,or
generalcontractor.····Allparticipantsintheconstructionprojecthavea
commissioningresponsibility.Participantsinclude
thecommissioningauthority,owner,design
professionals,constructi
4、onmanager,general
contractor,subcontractors,operationand
····maintenancemanager,suppliers,andequipment
manufacturers.····BenefitsofCommissioning•Reducedchangeorders•Lesswarrantyandcallbacksforcontractor•Smootherturnovertomaintenance•Improvedequipmentreliability•ReducedIEQprobl
5、ems–Reducedoccupantcomplaints–Improvedproductivity•Correctsystemoperationandinstallation•FacilitymeetsOwner’sexpectationandoperationalneeds····•Reducedutilityconsumptionandoperationalcosts····CommissioningObjectives•Ensurethefacilitymeetstheowner’sperformancerequirements•Provi
6、deasafeandhealthyenvironment•Provideoptimumenergyperformance•Provideafacilitythatcanbeefficientlyoperatedandmaintained•occupants····•Provideimproveddocumentationofsystemcharacteristics····Commissioning-Whatdidweusetodoandwhydoweneedit?•····CommissioningScope•MechanicalSystems–
7、AllHVACequipment–Buildingautomationsystemandhardwiredcontrols•ElectricalSystems–Switchgear,majordisconnects,backupgeneratorsandUPS(UninterruptedPowerSupply)•FireSafetySystems•SecuritySystems•Kitchenequipment····•Irrigationsystem•LaboratoryFumehoods,gascontrol····Commissioninga
8、ndConstructionPhasesPlanningDesignConstructionAcceptanceOccup
