Hitachi RAS-5HVNC1 - Page 8

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A10762290A
● Donotperformtheinstallationwork,refrigerantpipingwork,drainpump,drainpipingandelectricalwiring
connectionwithoutreferringtoourinstallationmanual.Iftheinstructionsarenotfollowed,itmayresultin
awaterleakage,electricshockorare.
● ThismachineusesrefrigerantR410AorrefrigerantR32.
Thetypeofenclosedrefrigerantisdescribedinthespecicationnameplateandcautionnameplate
attachedtotheoutdoorunit.Wheninstalling,repairing,orrelocating,donotmixsubstancesotherthanthe
refrigerantdescribedonthespecicationnameplateorcautionnameplateattachedtotheoutdoorunit.
Also,donotmixrefrigerantR410AandrefrigerantR32.Enteringnon-designatedrefrigerants,air,oxygen,
ammablesubstancessuchaspropaneoralcoholmaycauseexplosion,reorinjury.
● Donotpourwaterintotheindoorunit.Theseproductsareequippedwithelectricalparts.
Ifpoured,itwillcauseaseriouselectricalshock.
● DonotopentheservicecoverfortheindoororoutdoorunitwithoutturningOFFthemainpowersupply.
● Donottouchoradjustsafetydevicesinsidetheindoorunitoroutdoorunit.Ifthesedevicesaretouched
orreadjusted,itmaycauseaseriousaccident.
● Refrigerantleakagecancausedi󰀩cultywithbreathingduetoinsu󰀩cientair.TurnOFFthemainswitch,
extinguishanynakedamesandcontactyourservicecontractor,ifrefrigerantleakageoccurs.
● Makesurethatarefrigerantleaktesthasbeenperformed.Refrigerant(FluorocarbonorDiuoromethane)
forthisunitisnon-toxic,andodorless.Iftherefrigerantshouldsomehowescapeandcomeintocontact
withame,toxicgaswillform.Thisgasisheavierthanairandwillsettlenearoorareasandspread
whereitcancausesu󰀨ocationtothosenearby.Inaddition,diuoromethaneisammableandcancause
re.
● Theinstallerandsystemspecialistshallsecuresafetyagainstrefrigerantleakageaccordingtolocal
regulationsorstandards.
● UseanELB(EarthLeakageBreaker).
Intheeventoffault,thereisdangerofanelectricshockorareifitisnotused.
● Donotinstalltheoutdoorunitwherethereishighlevelofoilmist,ammablegases,saltyairorharmful
gasessuchassulfur.
● Forinstallation,rmlyconnecttherefrigerantpipebeforethecompressorstartsoperating.
Formaintenance,relocationanddisposal,removetherefrigerantpipeafterthecompressorstops.
● Donotperformashort-circuitoftheprotectiondevicesuchasthepressureswitchwhenoperating.
Itmaycauseareandexplosion.
● Donotaltertheproductandtheelectricalwiring.Itwillcauseaseriousaccident.
● Donotinstalltheindoorunitinammableenvironmenttoavoidreoranexplosion.
● Asthenewrefrigerant(R410AorR32)isadopted,therefrigerantoilhasbeenalsochanged,whichtends
tobea󰀨ectedbyforeignmatterssuchasmoisture,oxidelm,fat.Performtheinstallationworkwith
carenottoentermoisture,dustoroldrefrigerantintotherefrigerantcycle,otherwisethepartssuchas
expansionvalvebiteforeignmatterandtheoperationmaybeunavailable.
● Donotinsertthedrainpipetothedrainagetrenchwherecorrosivegasesoccur.Poisonousgasesow
intotheroom,sothatmaycausethepoisoning.
● CleaninginsideExistingRefrigerantPipe
*Non-ammableandnontoxicdetergentshallbeusedtocleanthepipe.Ifnot,itmaycauseare.
*Ventilatewell,otherwisecleaningthepipeinthesealedroommaycausesu󰀨ocation.Additionally,ifthe
detergentcontactsareandisunderhightemperature,itmaycausegenerationoftoxicgas.
*Thedetergentaftercleaningshallberecovered.Itisprohibitedtoemituorocarbonstotheatmosphere
withoutpermission.
DANGER