Fujitsu AOYG45KRTA Bedienungsanleitung

Fujitsu Klimaanlage AOYG45KRTA

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WARNING

• Installationofthisproductmustbedonebyexperiencedservicetechniciansor

professionalinstallersonlyinaccordancewiththismanual.Installationbynonprofes-

sionalorimproperinstallationoftheproductmaycauseseriousaccidentssuchas

injury,waterleakage,electricshock,orre.Iftheproductisinstalledindisregardof

theinstructionsinthismanual,itwillvoidthemanufacturer’swarranty.

• Toavoidgettinganelectricshock,nevertouchtheelectricalcomponentssoon

afterthepowersupplyhasbeenturnedo󰀨.Afterturningo󰀨thepower,alwayswait

10minutesormorebeforeyoutouchtheelectricalcomponents.

• Donotturnonthepoweruntilallworkhasbeencompleted.Turningonthepowerbe-

foretheworkiscompletedcancauseseriousaccidentssuchaselectricshockorre.

• Ifrefrigerantleakswhileworkisbeingcarriedout,ventilatethearea.Iftherefrigerant

comesincontactwithaame,itproducesatoxicgas.

• Installationmustbeperformedinaccordancewithregulations,codes,orstandards

forelectricalwiringandequipmentineachcountry,region,ortheinstallationplace.

• Donotusethisequipmentwithairoranyotherunspeciedrefrigerantintherefriger-

antlines.Excesspressurecancausearupture.

• Duringinstallation,makesurethattherefrigerantpipeisattachedrmlybeforeyou

runthecompressor.

Donotoperatethecompressorundertheconditionofrefrigerantpipingnotattached

properlywith3-wayvalveopen.Thismaycauseabnormalpressureintherefrigera-

tioncyclethatleadstoruptureandeveninjury.

• Wheninstallingorrelocatingtheairconditioner,donotmixgasesotherthanthe

speciedrefrigerant(R32)toentertherefrigerantcycle.

Ifairorothergasenterstherefrigerantcycle,thepressureinsidethecyclewillriseto

anabnormallyhighvalueandcauserupture,injury,etc.

• Toconnecttheindoorunitandoutdoorunit,useairconditionerpipingandcables

availablelocallyasstandardparts.Thismanualdescribesproperconnectionsusing

suchinstallationset.

• Donotmodifypowercable,useextensioncableorbranchwiring.Improperusemay

causeelectricshockorrebypoorconnection,insu󰀩cientinsulationorovercurrent.

• Donotpurgetheairwithrefrigerantsbutuseavacuumpumptovacuumtheinstallation.

• Thereisnotextrarefrigerantintheoutdoorunitforairpurging.

• UseavacuumpumpforR32orR410Aexclusively.

• Usingthesamevacuumpumpfordi󰀨erentrefrigerantsmaydamagethevacuum

pumportheunit.

• UseacleangaugemanifoldandcharginghoseforR32orR410Aexclusively.

• Donotusemeanstoacceleratethedefrostingprocessortoclean,otherthanthose

recommendedbythemanufacturer.

• Theapplianceshallbestoredinaroomwithoutcontinuouslyoperatingignitionsources

(forexample:openames,anoperatinggasapplianceoranoperatingelectricheater).

• Donotpierceorburn.

• Beawarethatrefrigerantsmaynotcontainanodour.

• Duringthepump-downoperation,makesurethatthecompressoristurnedo󰀨before

youremovetherefrigerantpiping.

Donotremovetheconnectionpipewhilethecompressorisinoperationwith3-way

valveopen.

Thismaycauseabnormalpressureintherefrigerationcyclethatleadstoruptureand

eveninjury.

• Thisapplianceisnotintendedforusebypersons(includingchildren)withreduced

physical,sensoryormentalcapabilities,orlackofexperienceandknowledge,unless

theyhavebeengivensupervisionorinstructionconcerninguseoftheappliancebya

personresponsiblefortheirsafety.Childrenshouldbesupervisedtoensurethatthey

donotplaywiththeappliance.

• Ifthepowercableortheconnectioncableisdamaged,itmustbereplacedbythe

manufacturer,itsserviceagentorsimilarqualiedpersonsinordertoavoidasafety

hazard.

• Keepanyrequiredventilationopeningsclearofobstruction.

CAUTION

• Fortheairconditionertoworkappropriately,installitaswritteninthismanual.

• Thisproductmustbeinstalledbyqualiedpersonnelwithacapacitycerticationof

handlingrefrigerantuids.Refertoregulationandlawsinuseoninstallationplace.

• Installtheproductbyfollowinglocalcodesandregulationsinforceattheplaceof

installation,andtheinstructionsprovidedbythemanufacturer.

• Thisproductispartofasetconstitutinganairconditioner.Theproductmustnotbe

installedaloneorbeinstalledwithnon-authorizeddevicebythemanufacturer.

• Alwaysuseaseparatepowersupplylineprotectedbyacircuitbreakeroperatingon

allwireswithadistancebetweencontactof3mmforthisproduct.

• Toprotectthepersons,ground(earth)theproductcorrectly,andusethepowercable

combinedwithanEarthLeakageCircuitBreaker(ELCB).

• Thisproductisnotexplosionproof,andthereforeshouldnotbeinstalledinexplosive

atmosphere.

• Thisproductcontainsnouser-serviceableparts.Alwaysconsultexperiencedservice

techniciansforrepairing.

• Wheninstallingpipesshorterthan3m,soundoftheoutdoorunitwillbetransferred

totheindoorunit,whichwillcauselargeoperatingsoundorsomeabnormalsound.

• Whenmovingorrelocatingtheairconditioner,consultexperiencedservicetechni-

ciansfordisconnectionandreinstallationoftheproduct.

• Donottouchthensoftheheatexchanger.Touchingtheheatexchangernscould

resultindamagetothensorpersonalinjurysuchasskinrupture.

• Anindooruniterror(errorcode:2-3)occursifanindoorunitforR410Aisconnectedto

therefrigerantsysteminaconcurrentmultipleconnectionenvironment.Inthatcase,

notetheindoormodelnamethatexperiencestheerror,andcontactourservicecentre.

AIRCONDITIONER

OUTDOORUNIT

INSTALLATION MANUAL

PARTNo.9379069960-02

1. SAFETY PRECAUTIONS

• Besuretoreadthismanualthoroughlybeforeinstallation.

• Thewarningsandprecautionsindicatedinthismanualcontainimportantinformation

pertainingtoyoursafety.Besuretoobservethem.

• Handthismanual,togetherwiththeoperationmanual,tothecustomer.Requestthe

customertokeepthemonhandforfutureuse,suchasforrelocatingorrepairingthe

unit.

WARNING

Indicatesapotentiallyorimminentlyhazardoussituation

which,ifnotavoided,couldresultindeathorseriousinjury.

CAUTION

Indicatesapotentiallyhazardoussituationthatmayresultin

minorormoderateinjuryordamagetoproperty.

[Originalinstructions] Forauthorizedservicepersonnelonly.

Contents

1. SAFETYPRECAUTIONS............................................................................1

2. PRODUCTSPECIFICATION.......................................................................3

2.1.Installationtools....................................................................................3

2.2.Accessories..........................................................................................4

2.3.Piperequirements................................................................................4

2.4.Electricalrequirements.........................................................................5

2.5.Additionalchargeamount.....................................................................5

2.6.Generalinformation..............................................................................6

3. INSTALLATIONWORK...............................................................................6

3.1.Installationdimensions.........................................................................7

3.2.Transportingtheunit.............................................................................7

3.3.Mountingtheunit..................................................................................8

3.4.Draininstallation...................................................................................8

3.5.Pipeinstallation....................................................................................8

3.6.Sealingtest.........................................................................................10

3.7.Vacuumprocess.................................................................................10

3.8.Additionalcharging............................................................................. 11

3.9.Electricalwiring................................................................................... 11

4. TESTRUN.................................................................................................14

4.1.Pre-testruncheckitems.....................................................................14

4.2.Testoperationmethod........................................................................14

4.3.Checklist.............................................................................................14

5. FINISHING.................................................................................................15

5.1.Installinginsulation.............................................................................15

5.2.Fillingwithputty..................................................................................15

6. HOWTOOPERATEDISPLAYUNIT.........................................................15

6.1.Displayunitposition............................................................................15

6.2.Descriptionofdisplayandbuttons......................................................15

7. FIELDSETTING........................................................................................16

7.1.Fieldsettingbuttons...........................................................................16

7.2.Functionsettings................................................................................16

8. EXTERNALINPUTANDOUTPUT............................................................ 17

8.1.Externalinput......................................................................................17

8.2.Externaloutput...................................................................................18

9. PUMPDOWN............................................................................................18

9.1.Preparationforpumpdown................................................................ 19

9.2.Pumpdownprocedure.......................................................................19

10. ERRORCODES........................................................................................19

10.1.Errordisplaymode...........................................................................19

10.2.Errorcodechecktable......................................................................20

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2-7.Checkstotherefrigerationequipment

• Whereelectricalcomponentsarebeingchanged,theyshallbetforthepurpose

andtothecorrectspecication.

• Atalltimesthemanufacturer’smaintenanceandserviceguidelinesshallbefollowed.

• Ifindoubtconsultthemanufacturer’stechnicaldepartmentforassistance.

• Thefollowingchecksshallbeappliedtoinstallationsusingammablerefrigerants.

-Thechargesizeisinaccordancewiththeroomsizewithinwhichtherefrigerant

containingpartsareinstalled.

-Theventilationmachineryandoutletsareoperatingadequatelyandarenot

obstructed.

-Ifanindirectrefrigeratingcircuitisbeingused,thesecondarycircuitshallbe

checkedforthepresenceofrefrigerant.

-Markingtotheequipmentcontinuestobevisibleandlegible.Markingsandsigns

thatareillegibleshallbecorrected.

-Refrigerationpipeorcomponentsareinstalledinapositionwheretheyareunlikely

tobeexposedtoanysubstancewhichmaycorroderefrigerantcontainingcompo-

nents,unlessthecomponentsareconstructedofmaterialswhichareinherently

resistanttobeingcorrodedoraresuitablyprotectedagainstbeingsocorroded.

2-8.Checkstoelectricaldevices

• Repairandmaintenancetoelectricalcomponentsshallincludeinitialsafetychecks

andcomponentinspectionprocedures.

• Ifafaultexiststhatcouldcompromisesafety,thennoelectricalsupplyshallbe

connectedtothecircuituntilitissatisfactorilydealtwith.

• Ifthefaultcannotbecorrectedimmediatelybutitisnecessarytocontinueopera-

tion,anadequatetemporarysolutionshallbeused.

• Thisshallbereportedtotheowneroftheequipmentsoallpartiesareadvised.

• Initialsafetychecksshallinclude.

-Thatcapacitorsaredischarged:thisshallbedoneinasafemannertoavoid

possibilityofsparking.

-Thattherenoliveelectricalcomponentsandwiringareexposedwhilecharging,

recoveringorpurgingthesystem.

-Thatthereiscontinuityofearthbonding.

3.Repairstosealedcomponents

• Duringrepairstosealedcomponents,allelectricalsuppliesshallbedisconnected

fromtheequipmentbeingworkeduponpriortoanyremovalofsealedcovers,etc.

• Ifitisabsolutelynecessarytohaveanelectricalsupplytoequipmentduringservic-

ing,thenapermanentlyoperatingformofleakdetectionshallbelocatedatthe

mostcriticalpointtowarnofapotentiallyhazardoussituation.

• Particularattentionshallbepaidtothefollowingtoensurethatbyworkingon

electricalcomponents,thecasingisnotalteredinsuchawaythatthelevelof

protectionisa󰀨ected.

• Thisshallincludedamagetocables,excessivenumberofconnections,terminals

notmadetooriginalspecication,damagetoseals,incorrectttingofglands,etc.

• Ensurethatapparatusismountedsecurely.

• Ensurethatsealsorsealingmaterialshavenotdegradedsuchthattheynolonger

servethepurposeofpreventingtheingressofammableatmospheres.

• Replacementpartsshallbeinaccordancewiththemanufacturer’sspecications.

NOTES:Theuseofsiliconsealantmayinhibitthee󰀨ectivenessofsometypesof

leakdetectionequipment.

Intrinsicallysafecomponentsdonothavetobeisolatedpriortoworking

onthem.

4.Repairtointrinsicallysafecomponents

• Donotapplyanypermanentinductiveorcapacitanceloadstothecircuitwithout

ensuringthatthiswillnotexceedthepermissiblevoltageandcurrentpermittedfor

theequipmentinuse.

• Intrinsicallysafecomponentsaretheonlytypesthatcanbeworkedonwhilelivein

thepresenceofaammableatmosphere.

• Thetestapparatusshallbeatthecorrectrating.

• Replacecomponentsonlywithpartsspeciedbythemanufacturer.

• Otherpartsmayresultintheignitionofrefrigerantintheatmospherefromaleak.

5.Cabling

• Checkthatcablingwillnotbesubjecttowear,corrosion,excessivepressure,vibra-

tion,sharpedgesoranyotheradverseenvironmentale󰀨ects.

• Thecheckshallalsotakeintoaccountthee󰀨ectsofagingorcontinualvibration

fromsourcessuchascompressorsorfans.

6.Detectionofammablerefrigerants

• Undernocircumstancesshallpotentialsourcesofignitionbeusedinthesearching

forordetectionofrefrigerantleaks.

• Ahalidetorch(oranyotherdetectorusinganakedame)shallnotbeused.

7.Leakdetectionmethods

• Electronicleakdetectorsshallbeusedtodetectammablerefrigerants,butthe

sensitivitymaynotbeadequate,ormayneedre-calibration.(Detectionequipment

shallbecalibratedinarefrigerant-freearea.)

• Ensurethatthedetectorisnotapotentialsourceofignitionandissuitableforthe

refrigerantused.

• LeakdetectionequipmentshallbesetatapercentageoftheLFLoftherefrigerant

andshallbecalibratedtotherefrigerantemployedandtheappropriatepercentage

ofgas(25%maximum)isconrmed.

• Leakdetectionuidsaresuitableforusewithmostrefrigerantsbuttheuseof

detergentscontainingchlorineshallbeavoidedasthechlorinemayreactwiththe

refrigerantandcorrodethecopperpipe-work.

• Ifaleakissuspected,allnakedamesshallberemoved/extinguished.

• Ifaleakageofrefrigerantisfoundwhichrequiresbrazing,alloftherefrigerantshall

berecoveredfromthesystem,orisolated(bymeansofshuto󰀨valves)inapartof

thesystemremotefromtheleak.

Oxygenfreenitrogen(OFN)shallthenbepurgedthroughthesystembothbefore

andduringthebrazingprocess.

Precautions for using R32 refrigerant

Thebasicinstallationworkproceduresarethesameasconventionalrefrigerant(R410A,

R22)models.

However,paycarefulattentiontothefollowingpoints:

WARNING

• Sincetheworkingpressureis1.6timeshigherthanthatofrefrigerantR22models,

someofthepipingandinstallationandservicetoolsarespecial.(Referto

“2.1.Instal-

lationtools”.)

Especially,whenreplacingarefrigerantR22modelwithanewrefrigerantR32model,

alwaysreplacetheconventionalpipingandarenutswiththeR32andR410Apiping

andarenutsontheoutdoorunitside.

ForR32andR410A,thesamearenutontheoutdoorunitsideandpipecanbe

used.

• ModelsthatuserefrigerantR32andR410Ahaveadi󰀨erentchargingportthread

diametertopreventerroneouschargingwithrefrigerantR22andforsafety.There-

fore,checkbeforehand.[ThechargingportthreaddiameterforR32andR410Ais1/2

inch.]

• BemorecarefulthanR22sothatforeignmatter(oil,water,etc.)doesnotenterthe

piping.

Also,whenstoringthepiping,securelysealtheopeningbypinching,taping,etc.

(HandlingofR32issimilartoR410A.)

CAUTION

1.Installation(Space)

• Thattheinstallationofpipe-workshallbekepttoaminimum.

• Thatpipe-workshallbeprotectedfromphysicaldamage.

• Thatcompliancewithnationalgasregulationsshallbeobserved.

• Thatmechanicalconnectionsshallbeaccessibleformaintenancepurposes.

• Incasesthatrequiremechanicalventilation,ventilationopeningsshallbekept

clearofobstruction.

• Whendisposingoftheproductisused,bebasedonnationalregulations,properly

processed.

2.Servicing

2-1.Servicepersonnel

• Anypersonwhoisinvolvedwithworkingonorbreakingintoarefrigerantcircuit

shouldholdacurrentvalidcerticatefromanindustry-accreditedassessment

authority,whichauthorizestheircompetencetohandlerefrigerantssafelyinac-

cordancewithanindustryrecognisedassessmentspecication.

• Servicingshallonlybeperformedasrecommendedbytheequipmentmanufac-

turer.Maintenanceandrepairrequiringtheassistanceofotherskilledpersonnel

shallbecarriedoutunderthesupervisionofthepersoncompetentintheuseof

ammablerefrigerants.

• Servicingshallbeperformedonlyasrecommendedbythemanufacturer.

2-2.Work

• Priortobeginningworkonsystemscontainingammablerefrigerants,safety

checksarenecessarytoensurethattheriskofignitionisminimised.Forrepairto

therefrigeratingsystem,theprecautionsin2-2to2-8shallbecompliedwithprior

toconductingworkonthesystem.

• Workshallbeundertakenunderacontrolledproceduresoastominimizetherisk

ofaammablegasorvapourbeingpresentwhiletheworkisbeingperformed.

• Allmaintenancesta󰀨andothersworkinginthelocalareashallbeinstructedonthe

natureofworkbeingcarriedout.

• Workinconnedspacesshallbeavoided.

• Theareaaroundtheworkspaceshallbesectionedo󰀨.

• Ensurethattheconditionswithintheareahavebeenmadesafebycontrolofam-

mablematerial.

2-3.Checkingforpresenceofrefrigerant

• Theareashallbecheckedwithanappropriaterefrigerantdetectorpriortoanddur-

ingwork,toensurethetechnicianisawareofpotentiallyammableatmospheres.

• Ensurethattheleakdetectionequipmentbeingusedissuitableforusewitham-

mablerefrigerants,i.e.nonsparking,adequatelysealedorintrinsicallysafe.

2-4.Presenceofreextinguisher

• Ifanyhotworkistobeconductedontherefrigerationequipmentoranyassociated

parts,appropriatereextinguishingequipmentshallbeavailableathand.

• HaveadrypowderorCO2reextinguisheradjacenttothechargingarea.

2-5.Noignitionsources

• Nopersoncarryingoutworkinrelationtoarefrigerationsystemwhichinvolves

exposinganypipeworkthatcontainsorhascontainedammablerefrigerantshall

useanysourcesofignitioninsuchamannerthatitmayleadtotheriskofreor

explosion.

• Allpossibleignitionsources,includingcigarettesmoking,shouldbekeptsu󰀩cient-

lyfarawayfromthesiteofinstallation,repairing,removinganddisposal,during

whichammablerefrigerantcanpossiblybereleasedtothesurroundingspace.

• Priortoworktakingplace,theareaaroundtheequipmentistobesurveyedto

makesurethattherearenoammablehazardsorignitionrisks.“NoSmoking”

signsshallbedisplayed.

2-6.Ventilatedarea

• Ensurethattheareaisintheopenorthatitisadequatelyventilatedbeforebreak-

ingintothesystemorconductinganyhotwork.

• Adegreeofventilationshallcontinueduringtheperiodthattheworkiscarriedout.

• Theventilationshouldsafelydisperseanyreleasedrefrigerantandpreferably

expelitexternallyintotheatmosphere.

En-3

CAUTION

8.Removalandevacuation

• Whenbreakingintotherefrigerantcircuittomakerepairs–orforanyother

purpose–conventionalproceduresshallbeused.

However,itisimportantthatbestpracticeisfollowedsinceammabilityisa

consideration.

Thefollowingprocedureshallbeadheredto:

• removerefrigerant

• purgethecircuitwithinertgas

• evacuate

• purgeagainwithinertgas

• openthecircuitbycuttingorbrazing

• Therefrigerantchargeshallberecoveredintothecorrectrecoverycylinders.

• Thesystemshallbe“ushed”withOFNtorendertheunitsafe.

• Thisprocessmayneedtoberepeatedseveraltimes.

• Compressedairoroxygenshallnotbeusedforthistask.

• FlushingshallbeachievedbybreakingthevacuuminthesystemwithOFNand

continuingtolluntiltheworkingpressureisachieved,thenventingtoatmosphere,

andnallypullingdowntoavacuum.

• Thisprocessshallberepeateduntilnorefrigerantiswithinthesystem.

• WhenthenalOFNchargeisused,thesystemshallbeventeddowntoatmo-

sphericpressuretoenableworktotakeplace.

• Thisoperationisabsolutelyvitalifbrazingoperationsonthepipeworkaretotake

place.

• Ensurethattheoutletforthevacuumpumpisnotclosetoanyignitionsourcesand

thereisventilationavailable.

9.Chargingprocedures

• Inadditiontoconventionalchargingprocedures,thefollowingrequirementsshall

befollowed.

-Ensurethatcontaminationofdi󰀨erentrefrigerantsdoesnotoccurwhenusing

chargingequipment.

-Hosesorlinesshallbeasshortaspossibletominimizetheamountofrefriger-

antcontainedinthem.

-Cylindersshallbekeptupright.

-Ensurethattherefrigerationsystemisearthedpriortochargingthesystemwith

refrigerant.

-Labelthesystemwhenchargingiscomplete(ifnotalready).

-Extremecareshallbetakennottooverlltherefrigerationsystem.

• PriortorechargingthesystemitshallbepressuretestedwithOFN.

• Thesystemshallbeleaktestedoncompletionofchargingbutpriortocommis-

sioning.

• Afollowupleaktestshallbecarriedoutpriortoleavingthesite.

10.Decommissioning

• Beforecarryingoutthisprocedure,itisessentialthatthetechnicianiscompletely

familiarwiththeequipmentandallitsdetails.

• Itisrecommendedgoodpracticethatallrefrigerantsarerecoveredsafely.

• Priortothetaskbeingcarriedout,anoilandrefrigerantsampleshallbetakenin

caseanalysisisrequiredpriortore-useofreclaimedrefrigerant.

• Itisessentialthatelectricalpowerisavailablebeforethetaskiscommenced.

a)Becomefamiliarwiththeequipmentanditsoperation.

b)Isolatesystemelectrically.

c)Beforeattemptingtheprocedureensurethat:

• mechanicalhandlingequipmentisavailable,ifrequired,forhandlingrefrig-

erantcylinders;

• allpersonalprotectiveequipmentisavailableandbeingusedcorrectly;

• therecoveryprocessissupervisedatalltimesbyacompetentperson;

• recoveryequipmentandcylindersconformtotheappropriatestandards.

d)Pumpdownrefrigerantsystem,ifpossible.

e)Ifavacuumisnotpossible,makeamanifoldsothatrefrigerantcanbere-

movedfromvariouspartsofthesystem.

f)Makesurethatcylinderissituatedonthescalesbeforerecoverytakesplace.

g)Starttherecoverymachineandoperateinaccordancewithmanufacturer’s

instructions.

h)Donotoverllcylinders.(Nomorethan80%volumeliquidcharge).

i)Donotexceedthemaximumworkingpressureofthecylinder,eventemporarily.

j)Whenthecylindershavebeenlledcorrectlyandtheprocesscompleted,make

surethatthecylindersandtheequipmentareremovedfromsitepromptlyand

allisolationvalvesontheequipmentareclosedo󰀨.

k)Recoveredrefrigerantshallnotbechargedintoanotherrefrigerationsystem

unlessithasbeencleanedandchecked.

11.Labelling

• Equipmentshallbelabelledstatingthatithasbeende-commissionedandemptied

ofrefrigerant.

• Thelabelshallbedatedandsigned.

• Ensurethattherearelabelsontheequipmentstatingtheequipmentcontainsam-

mablerefrigerant.

12.Recovery

• Whenremovingrefrigerantfromasystem,eitherforservicingordecommissioning,

itisrecommendedgoodpracticethatallrefrigerantsareremovedsafely.

• Whentransferringrefrigerantintocylinders,ensurethatonlyappropriaterefrigerant

recoverycylindersareemployed.

• Ensurethatthecorrectnumberofcylindersforholdingthetotalsystemchargeare

available.

• Allcylinderstobeusedaredesignatedfortherecoveredrefrigerantandlabelled

forthatrefrigerant(i.e.specialcylindersfortherecoveryofrefrigerant).

• Cylindersshallbecompletewithpressurereliefvalveandassociatedshut-o󰀨

valvesingoodworkingorder.

• Emptyrecoverycylindersareevacuatedand,ifpossible,cooledbeforerecovery

occurs.

• Therecoveryequipmentshallbeingoodworkingorderwithasetofinstructions

concerningtheequipmentthatisathandandshallbesuitablefortherecoveryof

ammablerefrigerants.

• Inaddition,asetofcalibratedweighingscalesshallbeavailableandingoodwork-

ingorder.

• Hosesshallbecompletewithleak-freedisconnectcouplingsandingoodcondition.

• Beforeusingtherecoverymachine,checkthatitisinsatisfactoryworkingorder,

hasbeenproperlymaintainedandthatanyassociatedelectricalcomponentsare

sealedtopreventignitionintheeventofarefrigerantrelease.

Consultmanufacturerifindoubt.

• Therecoveredrefrigerantshallbereturnedtotherefrigerantsupplierinthecorrect

recoverycylinder,andtherelevantWasteTransferNotearranged.

• Donotmixrefrigerantsinrecoveryunitsandespeciallynotincylinders.

• Ifcompressorsorcompressoroilsaretoberemoved,ensurethattheyhavebeen

evacuatedtoanacceptableleveltomakecertainthatammablerefrigerantdoes

notremainwithinthelubricant.

• Theevacuationprocessshallbecarriedoutpriortoreturningthecompressorto

thesuppliers.

• Onlyelectricheatingtothecompressorbodyshallbeemployedtoacceleratethis

process.

• Whenoilisdrainedfromasystem,itshallbecarriedoutsafely.

Explanationofsymbolsdisplayedontheindoorunitoroutdoorunit.

WARNING

Thissymbolshowsthatthisequipmentusesaammable

refrigerant.Iftherefrigerantisleaked,togetherwithan

externalignitionsource,thereisapossibilityofignition.

CAUTION ThissymbolshowsthattheOperationManualshouldbe

readcarefully.

CAUTION

Thissymbolshowsthataservicepersonnelshouldbe

handlingthisequipmentwithreferencetotheInstallation

Manual.

CAUTION Thissymbolshowsthatthereisinformationincludedinthe

OperationManualand/orInstallationManual.

2. PRODUCT SPECIFICATION

2.1. Installation tools

WARNING

• ToinstallaunitthatusesR32refrigerant,usededicatedtoolsandpipingmaterialsthat

havebeenmanufacturedspecicallyforR32(R410A)use.Becausethepressureof

R32refrigerantisapproximately1.6timeshigherthanR22,failuretousededicated

pipingmaterialorimproperinstallationcancauseruptureorinjury.Furthermore,itcan

causeseriousaccidentssuchaswaterleakage,electricshock,orre.

• Donotuseavacuumpumporrefrigerantrecoverytoolswithaseriesmotor,sinceit

mayignite.

Tool name Contents of change

Gaugemanifold Pressureishighandcannotbemeasuredwithaconventional

(R22)gauge.Topreventerroneousmixingofotherrefriger-

ants,thediameterofeachporthasbeenchanged.

Itisrecommendedthegaugewithseals-0.1to5.3MPa

(-1to53bar)forhighpressure.-0.1to3.8MPa(-1to38bar)

forlowpressure.

Chargehose Toincreasepressureresistance,thehosematerialandbase

sizewerechanged.(R32/R410A)

Vacuumpump Aconventionalvacuumpumpcanbeusedbyinstallinga

vacuumpumpadapter.

(Useofavacuumpumpwithaseriesmotorisprohibited.)

Gasleakagedetector SpecialgasleakagedetectorforHFCrefrigerantR32/R410A.

 Copper pipes

Itisnecessarytouseseamlesscopperpipesanditisdesirablethattheamountofresidual

oilislessthan40mg/10m.Donotusecopperpipeshavingacollapsed,deformedor

discoloredportion(especiallyontheinteriorsurface).Otherwise,theexpansionvalveor

capillarytubemaybecomeblockedwithcontaminants.

AsanairconditionerusingR32(R410A)incurspressurehigherthanwhenusingconven-

tionalrefrigerant,itisnecessarytochooseadequatematerials.

Produktspezifikationen

Marke:	Fujitsu
Kategorie:	Klimaanlage
Modell:	AOYG45KRTA

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