Hitachi PSC-A128EX3 - Electrical Precautions

Electrical Precautions
Takethefollowingprecautionstoreducetheriskofelectricshock,reor
explosionresultinginseriousinjuryordeath.
● Highlydangerouselectricalvoltagesareusedinthissystem.Carefullyrefertothewiringdiagram
andtheseinstructionswhenwiring.Improperconnectionsandinadequategroundingcancause
serious injury or death.
● Beforeservicing,openandtagalldisconnectswitches.Neverassumethatelectricalpoweris
disconnected.Checkwithmeterandequipment.
● Onlyuseelectricalprotectionequipmentandtoolssuitedforthisinstallation.
● UsespeciedcablesbetweenCentralStationEXandthepowersupply/airconditioner/external
equipment.
● Shieldedcommunicationcableisnotalwaysrequiredbutstronglyrecommendedtoprevent
communicationissuesforapplicationssuchas:HeavyandLightIndustrialBuildings,Telecom
Centers,DataCenters,Airports,RadioStations,Hospitals/Healthcarebuildings,andO󰀩ces.
● Useadedicatedpowersupplyfortheairconditionerattheunit’sratedvoltage.
● Besuretoinstallcircuitbreakers(groundfaultinterrupter,isolatingswitch,moldedcasecircuit
breakerandsoon),withthespeciedcapacity.Ensurethatthewiringterminalsaretightenedsecurely
torecommendedtorquespecications.
● Clampelectricalwiressecurelywithacableclampafterallwiringisconnectedtotheterminalblock.
Inaddition,runwiressecurelythroughthewiringaccesschannel.
● Wheninstallingthepowerlines,donotapplytensiontothecables.Securethesuspendedcablesat
regularintervals,butnottootightly.
● TurnOFFanddisconnectCentralStationEXfromthepowersourcewhenwiring.
DonotopenthebackcoverwithoutturningOFFthemainpowersupply.
● Donotcleanwith,orpourwaterinto,CentralStationEXasitcouldcauseelectricshockand/or
damagetheproduct.Donotusestrongdetergentsuchasasolvent.Cleanwithasoftcloth.
● Checkthatthegroundcableissecurelyconnected.Donotconnectgroundwiringtogaspiping,water
piping,lightningconductor,ortelephonegroundcables.
● Iftherearefrequentoccurrenceswithblownfusesorippedcircuitbreakers,shutdownthesystem
immediatelyandcontactyourservicecontractor.
A12124920A
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