FLOOR TYPE AIR CONDITIONERSMFZ-KJ25VE MFZ-KJ35VE MFZ-KJ50VE MFZ-KJ60VE
EnglishInstallatIon Manual For INSTALLER• When installingmulti units, refer to the installationmanual of themulti unit foroutdoorunitinstallation.
note:Thesemodelscanbeconnectedtothemultiunits,exceptforKJ60.
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ContEnts1. BEFOREINSTALLATION....................................12. INDOORUNITINSTALLATION...........................33. OUTDOORUNITINSTALLATION.......................64. PURGINGPROCEDURES,LEAKTEST,AND
TESTRUN...........................................................75. PUMPINGDOWN................................................7
1. BEFoRE InstallatIon1-1. tHE FolloWInG sHoulD alWaYs BE oBsERVED FoR saFEtY• Besuretoread“THEFOLLOWINGSHOULDALWAYSBEOBSERVEDFORSAFETY”beforeinstallingtheairconditioner.• Besuretoobservethewarningsandcautionsspecifiedhereastheyincludeimportantitemsrelatedtosafety.• Afterreadingthismanual,besuretokeepittogetherwiththeOPERATINGINSTRUCTIONSforfuturereference.
1-2. sElECtInG tHE InstallatIon loCatIon
CAUTION (Couldleadtoseriousinjuryinparticularenvironmentswhenoperatedincorrectly.)
Required tools for InstallationPhillipsscrewdriverLevelScaleUtilityknifeorscissors25,35class65mm/50,60class75mmholesawTorquewrench
Wrench(orspanner)4mmhexagonalwrenchFlaretoolforR410AGaugemanifoldforR410AVacuumpumpforR410AChargehoseforR410APipecutterwithreamer
n Do not install the unit by yourself (user). Incomplete installation could cause fire, electric
shock, injury due to theunit falling, or leakageofwater.Consultthedealerfromwhomyoupurchasedtheunitoraqualifiedinstaller.
n Perform the installation securely referring to the installation manual.
Incomplete installation could cause fire, electricshock, injury due to theunit falling, or leakageofwater.
n When installing the unit, use appropriate protec-tive equipment and tools for safety.
Failuretodosocouldcauseinjury.n Install the unit securely in a place which can
bear the weight of the unit. Iftheinstallationlocationcannotbeartheweightof
theunit,theunitcouldfallcausinginjury.n Electrical work should be performed by a quali-
fied, experienced electrician, according to the installation manual. Be sure to use an exclusive circuit. Do not connect other electrical appli-ances to the circuit.
If thecapacityof thepowercircuit is insufficientorthereisincompleteelectricalwork,itcouldresultinafireoranelectricshock.
n Earth the unit correctly. Donotconnecttheearthtoagaspipe,waterpipe,
lightningrodor telephoneearth.Defectiveearthingcouldcauseelectricshock.
n Do not damage the wires by applying excessive pressure with parts or screws.
Damagedwirescouldcausefireorelectricshock.n Be sure to cut off the main power in case of set-
ting up the indoor P.C. board or wiring works. Failuretodosocouldcauseelectricshock.n Use the specified wires to connect the indoor
and outdoor units securely and attach the wires firmly to the terminal block connecting sections so the stress of the wires is not applied to the sections. Do not extend the wires, or use inter-mediate connection.
Incomplete connectingand securing could causefire.
n Do not install the unit in a place where inflam-mable gas may leak.
Ifgasleaksandaccumulatesintheareaaroundtheunit,itcouldcauseanexplosion.
n Do not use intermediate connection of the power cord or the extension cord and do not connect many devices to one aC outlet.
Itcouldcauseafireoranelectricshockduetode-fective contact, defective insulation, exceeding thepermissiblecurrent,etc.
n Be sure to use the parts provided or specified parts for the installation work.
Theuseofdefectivepartscouldcausean injuryorleakageofwaterduetoafire,anelectricshock,theunitfalling,etc.
n When plugging the power supply plug into the outlet, make sure that there is no dust, clogging, or loose parts in both the outlet and the plug. Make sure that the power supply plug is pushed com-pletely into the outlet.
Ifthereisdust,clogging,orloosepartsonthepowersupplyplugortheoutlet,itcouldcauseelectricshockorfire. If loosepartsare foundon thepowersupplyplug,replaceit.
n attach the electrical cover to the indoor unit and the service panel to the outdoor unit securely.
Iftheelectricalcoveroftheindoorunitand/ortheserv-icepaneloftheoutdoorunitarenotattachedsecurely,itcouldresultinafireoranelectricshockduetodust,water,etc.
n When installing, relocating, or servicing the unit, make sure that no substance other than the specified refrigerant (R410A) enters the refriger-ant circuit.
Anypresenceofforeignsubstancesuchasaircancauseabnormal pressure riseandmay result inexplosionorinjury.Theuseofanyrefrigerantotherthan that specified for the systemwill causeme-chanical failure, systemmalfunction,orunit break-down.Intheworstcase,thiscouldleadtoaseriousimpedimenttosecuringproductsafety.
n Do not discharge the refrigerant into the atmos-phere. If refrigerant leaks during installation, venti-late the room.
If refrigerant comes in contactwith a fire, harmfulgascouldbegenerated.
n Check that the refrigerant gas does not leak after installation has been completed.
If refrigerant gas leaks indoors, and comes intocontactwiththeflameofafanheater,spaceheater,stove,etc.,harmfulsubstanceswillbegenerated.
n use appropriate tools and piping materials for installation.
ThepressureofR410Ais1.6timesmorethanR22.Notusingappropriatetoolsormaterialsandincom-plete installation could cause thepipes to burst orinjury.
n When pumping down the refrigerant, stop the compressor before disconnecting the refriger-ant pipes.
If the refrigerant pipesaredisconnectedwhile thecompressor is runningand thestopvalve isopen,aircouldbedrawninandthepressureintherefrig-eration cycle couldbecomeabnormally high.Thiscouldcausethepipestoburstorinjury.
n When installing the unit, securely connect the refrigerant pipes before starting the compres-sor.
If the compressor is startedbefore the refrigerantpipesare connectedandwhen the stop valve isopen,aircouldbedrawninandthepressureintherefrigeration cycle couldbecomeabnormally high.Thiscouldcausethepipestoburstorinjury.
n Fasten a flare nut with a torque wrench as speci-fied in this manual.
If fastened too tight, a flarenutmaybreakafter alongperiodandcauserefrigerantleakage.
n the unit shall be installed in accordance with national wiring regulations.
n Install an earth leakage breaker depending on the installation place.
Ifanearthleakagebreakerisnotinstalled,itcouldcauseelectricshock.
n Perform the drainage/piping work securely ac-cording to the installation manual.
If thereisdefect inthedrainage/pipingwork,watercoulddrop from theunit, soakinganddamaginghouseholdgoods.
n Do not touch the air inlet or the aluminum fins of the outdoor unit.
Thiscouldcauseinjury.
n Do not install the outdoor unit where small ani-mals may live.
If small animals enter and touch theelectric partsinsidetheunit,itcouldcauseamalfunction,smokeemission,orfire.Also,adviseusertokeeptheareaaroundtheunitclean.
WARNING (Couldleadtodeath,seriousinjury,etc.)
EN
GLI
SH
InDooR unIt • Whereairflowisnotblocked.• Whereairspreadsovertheentireroom.• Rigidwallwithoutvibration.• Where it is not exposed to direct sunshine.Donot
exposetodirectsunshinealsoduringtheperiodfol-lowingunpackingtobeforeuse.
• Whereeasilydrained.• At adistance1mormoreaway fromyourTVand
radio.Operationof theair conditionermay interferewith radio orTV reception.Anamplifiermaybe re-quiredfortheaffecteddevice.
• Inaplaceas farawayaspossible fromfluorescentandincandescentlights.
Inordertomaketheinfraredremotecontroloperatetheair-conditionernormally.Theheat from the lightsmaycausedeformationortheultravioletmaycausedeterioration.
• Wheretheairfiltercanberemovedandreplacedeasily.REMotE ContRollER • Whereitiseasytooperateandeasilyvisible.• Wherechildrencannottouchit.• Select thepositionwhere the indoorunitcanreceive
thesignal fromtheremotecontrollerproperly.Checkthat signals from the remotecontrolleraresurely re-ceivedbytheindoorunitfromthatposition(‘beep’or‘beepbeep’receivingtonesounds).Afterthat,attachremotecontrollerholder toapillarorwall and installwirelessremotecontroller.
note: In roomswhere inverter type fluorescent lampsareused,thesignalfromthewirelessremotecontrollermaynotbereceived.outDooR unIt• Whereitisnotexposedtostrongwind.• Whereairflowisgoodanddustless.• Whererainordirectsunlightcanbeavoidedasmuch
aspossible.• Whereneighboursarenot annoyedbyoperation
soundorhotair.• Whererigidwallorsupportisavailabletopreventthe
increaseofoperationsoundorvibration.• Wherethereisnoriskofcombustiblegasleakage.• When installing theunit at a high level, be sure to
securetheunitlegs.• Where it isat least3maway from theantennaof
TVsetor radio.Operationof theairconditionermayinterferewithradioorTVreceptioninareaswherere-ceptionisweak.Anamplifiermayberequiredfortheaffecteddevice.
• Installtheunithorizontally.• Pleaseinstallitinanareanotaffectedbysnowfallor
blowingsnow. Inareaswithheavysnow,please in-stallacanopy,apedestaland/orsomebaffleboards.
note:Itisadvisabletomakeapipingloopnearoutdoorunitsoastoreducevibrationtransmittedfromthere.
note: Whenoperatingtheairconditionerinlowoutsidetem-perature,besure to follow the instructionsdescribedbelow.• Never install theoutdoor unit in a placewhere
itsair inlet/outletsidemaybeexposeddirectly towind.
• Toprevent exposure towind, install theoutdoorunitwithitsairinletsidefacingthewall.
• Topreventexposure towind, it is recommendedtoinstallabaffleboardontheairoutletsideoftheoutdoorunit.
Avoid the followingplaces for installationwhereairconditionertroubleisliabletooccur.• Whereflammablegascouldleak.• Wherethereismuchmachineoil.• Whereoil is splashedorwhere thearea is filled
with oily smoke (suchas cookingareasand fac-tories, inwhich theproperties of plastic couldbechangedanddamaged).
• Saltyplacessuchastheseaside.• Where sulfidegas is generated suchasahot
spring.• Where there is high-frequencyorwirelessequip-
ment.• Where there is emissionof high levels ofVOCs,
includingphthalate compounds, formaldehyde,etc.,whichmaycausechemicalcracking.
Model names are indicated in 1-3.Wheninstallingmultiunits,refertotheinstallationmanualofthemultiunitforoutdoorunitinstallation.
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Indoorunit
Wallholesleeve(C)
Cutofftheextralength. Pipefixingband
(E)
Wallholecover(D)
Sealthewallholegapwithputty(H).
Fixthepipetowallwithpipefixingband(E).
Fixingscrew(F)
1-3. sPECIFICatIons
1-4. INSTALLATION DIAGRAM
aCCEssoRIEsCheckthefollowingpartsbeforeinstallation.(1) Drainhose* 1(2) Remotecontrollerholder 1(3) Fixingscrewfor(2)3.5×16mm(Black) 2(4) Pipecover 1(5) Band 2(6) Battery(AAA)for(12) 2(7) Indoorunitmountingbracket 1(8) Fixingscrewfor(7)4×25mm 5(9) Woodscrewforindoorunitfixation 4(10) Washerof(9) 4(11) Felttape(Forleftorleft-rearpiping) 1(12) Wirelessremotecontroller 1(13) Aircleaningfilter 2
* note:TheDrainhoseisconnectedtotheunit.
<Outdoorunit>(14) Drainsocket(VEtypeonly) 1
Unitsshouldbeinstalledbylicensedcontractoraccordingtolocalcoderequirements.
Aftertheleaktest,applyinsulatingmaterialtightlysothatthereisnogap.
Besuretousewallholesleeve(C)topreventindoor/outdoorconnectingwire(A)fromcontactingmetalpartsinthewallandtopreventdamagebyrodentsincasethewallishollow.
PaRts to BE PRoVIDED at YouR sItE(A) Indoor/outdoorunitconnectingwire* 1(B) Extensionpipe 1(C) Wallholesleeve 1(D) Wallholecover 1(E) Pipefixingband 2to5(F) Fixingscrewfor(E)4×20mm 2to5(G) Pipingtape 1(H) Putty 1
(I)Drainhose(orsoftPVChose,15mminnerdia.orhardPVCpipeVP16)
1 or 2
(J) Refrigerationoil 1(K) Powersupplycord* 1
* note:Placeindoor/outdoorunitconnectingwire(A)andpowersupplycord(K)atleast1mawayfromtheTVantennawire.
150m
morbe
low
fromthe
floor
100mmormore
Noobstruction
100mmormore
*1 Connect to thepower switchwhichhasagapof 3mmormorewhenopen to interrupt thesourcepowerphase.(When thepower switch is shut off, itmust interrupt allphases.)
*2 Usewiresinconformitywithdesign60245IEC57.*3 Never usepipeswith thickness less than specified.The
pressureresistancewillbeinsufficient.*4 Useacopperpipeoracopper-alloyseamlesspipe.
*5 Becarefulnottocrushorbendthepipeduringpipebend-ing.
*6 Refrigerantpipebendingradiusmustbe100mmormore.*7 Ifpipelengthexceeds7m,additionalrefrigerant(R410A)
charge is required. (Noadditional charge is required forpipelengthlessthan7m.)
Additionalrefrigerant=A×(pipelength(m)–7)
*8 Insulationmaterial :Heat resisting foamplastic 0.045specificgravity
*9 Be sure to use the insulationof specified thickness.Ex-cessive thicknessmay cause incorrect installationof theindoorunitandinsufficientthicknessmaycausedewdrip-page.
*10Singleconnectiononly.
Model Powersupply*1 Wirespecifications*2 Pipesize (thickness*3,*4)
Indoorunit Outdoorunit RatedVoltage Frequency Breaker
capacityPowersupply
(3-core)Indoor/outdoorconnectingwire Gas/Liquid
MFZ-KJ25VEMFZ-KJ35VE
MUFZ-KJ25VEMUFZ-KJ35VE
230V 50Hz10A 1.0mm2
4-core 2.0mm2
ø9.52/6.35mm(0.8mm)
MFZ-KJ50VE MUFZ-KJ50VE(HZ) 16A2.0mm2 ø12.7/6.35mm
(0.8mm)MFZ-KJ60VE*10 MUFZ-KJ60VE(HZ) 20A
(KJ25,35/KJ50,60)PipelengthandheightdifferenceMax.pipelength 20/30m
Max.heightdifference 12/15mMax.numberofbends*5,*6 10RefrigerantadjustmentA*7 30/20g/mInsulationthickness*8,*9 8mm
(KJ25,35/KJ50,60)100/500mmormore
100mmormore
(KJ25,35/KJ50,60)200/500mmormore
350mmormore
100mm
ormore
Appearanceoftheoutdoorunitmaydifferfromsomemodels.
Airinlet
Airoutlet
outdoor unit installation(KJ25,35/KJ50,60)
2/4-10mm×21mmslot
800/840mm150/175mm 500mm
344.5/390mm
285/330mm
304-325/349-371mm
40mm
Whenthepipingistobeattachedtoawallcontainingmetals(tinplated)ormetalnetting,useachemicallytreatedwoodenpiece20mmorthickerbetweenthewallandthepipingorwrap7to8turnsofinsulationvinyltapearoundthepiping.Touseexistingpiping,performCOOLoperationfor30minutesandpumpdownbeforeremovingtheoldairconditioner.Remakeflareaccordingtothedimensionfornewrefrigerant.
Drain piping for outdoor unit <VE type only>•Providedrainpipingbeforeindoorandoutdoorpipingconnection.
•Connectdrainhose(I)I.D.15mmasshownintheillustration.
•Makesuretoprovidedrainpipingwithadown-hillgradeforeasydrainflow.
(14) (I)
note:Installtheunithorizontally.Donot usedrain socket (14) in cold regions.Drainmayfreezeandmakethefanstop.Theoutdoor unit produces condensateduringtheheatingoperation.Select the installationplacetoensuretopreventtheoutdoorunitand/orthegroundsfrombeingwetbydrainwaterordamagedbyfrozendrainwater.
IMPoRtant notEs TocomplywiththerequirementsofAustralianstandardAS/NZS3000electricalinstallations(wir-ingrules),theelectricalwiringrequiredbetweentheindoorandoutdoorunitsmustbeinstalledbyalicencedelectricalcontractor.
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Wall
Outdoorside
2-2. HolE DRIllInG1)Determinethewallholeposition.2)Drilladia.65mmhole(dia.75mmforKJ50/60).Theoutdoorside
shouldbe5to7mmlowerthantheindoorside.3)Insertwallholesleeve(C).
2-1. FIXInG oF InDooR unIt MountInG BRaCKEt• Findastructuralmaterial(suchasastud)inthewallandfixbracket(7)horizontallywithfixingscrews(8).• Topreventbracket(7)fromvibrating,besuretoinstallthefixingscrewsintheholesindicatedintheillustration.Foraddedsupport,fixingscrewsmay
alsobeinstalledinotherholes.
2. InDooR unIt InstallatIon
FORRIGHTDOWNWARDORLEFTDOWN-WARDPIPING(Thefollowingfigureisaviewofthebottomoftheindoorunitfromabove.)
FORREARORLEFT-REARPIPING(Thefollowingfigureisafrontview oftheindoorunitinstallationlocation.)
FORLEFTPIPING FORRIGHTPIPING
HolE PosItIons
ø65mm(KJ25/35)ø75mm(KJ50/60) 5-7mm
2-3. InDooR unIt PREPaRatIonRemovethefrontpaneloftheindoorunit.1)Pushdownthetabonthebothsidesoftheunittoopenthefrontpanel.2)Pullthefrontpaneltowardyoutoremoveit.3)Removethe2screws.4)Opentherearhorizontalvane.5)Pushthe2locationsonthetopofthepanel,andthenpulltheupperpartofthepaneltowardyou.6)Removethepanelwhileliftingitup(slightly).
Rearhorizontalvane
Panel
PanelPush
Indoorunit
6060
6030
6030
Frontpanel
Frontpanel
Indoorunit
Indoorside
Rearhorizontalvane
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2-4-3. EMBEDDING THE INDOOR UNIT IN A WALL1.Makeaholeinthewall.2.Usingreinforcementmaterial,adjustthedepth.3.Remove6screwsthatfixthebasetotheunit.Removethebasefrom
theunit.4.Fixtheindoorunitat4pointswiththeincludedwoodscrews(9)and
washers(10).Tightenthescrewssecurely.
4
575
740
70
4
33
3
33 3
705
2-4. INDOOR UNIT INSTALLATION2-4-1. INSTALLING THE INDOOR UNIT ON THE FLOOR1.Placetheindoorunitontheflatfloor.2.Fixtheindoorunitat4pointswiththeincludedwoodscrews(9)and
washers(10).Tightenthescrewssecurely.
2-4-2. MOUNTING THE INDOOR UNIT ON THE WALL1.Hookthetopoftheindoorunitontheindoorunitmountingbracket(7).2.Fixtheindoorunitat4pointswiththeincludedwoodscrews(9)and
washers(10).Tightenthescrewssecurely.
405
137
387
Indoorterminalblock
Indoor/outdoorunit connectingwire(A)
Outdoorterminalblock
Earthwire(green/yellow)
• Makeearthwirealittlelongerthanothers.(Morethan45mm)• Forfutureservicing,giveextralengthtotheconnectingwires.• Donot fold theexcesswire,orcram it intosmallspace.Takecautionnot to
damagethewires.• Besuretoattacheachscrewtoitscorrespondentterminalwhensecuringthe
cordand/orthewiretotheterminalblock.
2-5. ConnECtInG WIREs FoR InDooR unIt1)RemoveVAclamp.2)Passindoor/outdoorunitconnectingwire(A)fromthebackoftheindoorunit
andprocesstheendofthewire.3)Loosen terminal screw,and connect first theearthwire, then indoor/outdoor
unit connectingwire (A) to the terminal block.Be careful not tomakemis-wiring.Fixthewiretotheterminalblocksecurelysothatnopartofitscoreisappeared,andnoexternalforceisconveyedtotheconnectingsectionoftheterminalblock.
4)Firmlytightentheterminalscrewstopreventthemfromloosening.Aftertight-ening,pullthewireslightlytoconfirmthattheydonotmove.
5)Secureindoor/outdoorunitconnectingwire(A)andtheearthwirewiththeVAclamp.Neverfail tohooktheleftclawoftheVAclamp.AttachtheVAclampsecurely.
Terminalblock
Fixingscrew
Indoor/outdoorunitconnectingwire(A)
VAclamp
Leadwire
35mm15mm
2-6. PIPE FoRMInG anD InstallatIonPipe Forming• Routethedrainhosediagonallybelowtheconnectingpipes.• Makesurethatthedrainhoseisnotroutedupwardandthatthereareno
wavesinthehose.• Donotpullthehosewhenapplyingthetape.• Routethepipingsothatitdoesnotprojectpasttherearoftheindoorunit.(Refer
tothefiguretotheright.)Connecting Pipe Installation• Installtheconnectingpipessothatthepipingcanmoveslightlytothefront,
back,left,andright.
Pipingtape
Drainhose
Refrigerantpiping
Pipingbentout-ward
Push
• Besuretoinsulatetheconnectingpipessothattheydonotcontactthepanel.• Becarefulnottocrushtheconnectingpipeswhenbendingthem.
Removethecover.
RIGHTDOWNWARDPIPING OTHERPIPING
Band(5)
Pipecover(4)
Band(5)
Reinforcementmaterial
Unit
Base
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Donotmakedrainpipingasshownbelow.
Accumulateddrainwater
Air
WavingWaterleakage
Donotraise
Waterleakage
Waterleakage
Tipofdrainhosedippedinwater
Ditch
Atleast50mmgap
Downwardslope
Drainhose
SofthoseI.D.15mm
DrainhoseHardvinylchloridepipeI.D.30mm
Insert securely
Differentdiameterjoint
70cmormore
Fig.1 Fig.2 Fig.3
2-7. DRaIn PIPInG• Iftheextensiondrainhosehastopassthrougharoom,besuretowrapitwithcommerciallysoldinsulation.• Thedrainhoseshouldpointdownwardforeasydrainflow.(Fig.1)• Ifthedrainhoseprovidedwiththeindoorunitistooshort,connectitwithdrainhose(I)thatshouldbeprovidedatyoursite.(Fig.2)• Whenconnectingthedrainhosetothehardvinylchloridepipe,besuretoinsertitsecurelyintothepipe.(Fig.3)
2-8. FRont PanEl InstallatIon1)Opentherearhorizontalvane.2)Attachthepanel.Makesurethatthecatchesareengaged.3)Fixthepanelwithscrews.4)Insertthebottompartofthefrontpanel.5)Push3placesontheupperpartofthefrontpaneltocloseit.
Wrap the felt tape (11) tightlyaround thepipesandhosestartingnearwherethepipesandhoseareroutedfromtheindoorunit.(Theoverlapwidthofthefelttape(11)shouldnotbemorethan1/2ofthetapewidth.)
Felttape(11)
Startwrappingthepipingtape(G)aroundthepipesandhose10mminsidetheindoorunit.
Fastentheendofthefelttape(11)withabandagestopper.
Makesurethatthedrainhoseisnotroutedupward.
FORLEFTORLEFT-REARPIPINGBundletheconnectingpipesanddrainhosetogether,andthenwraptheminfelttape(11).
Cutandusethelowersidepanelsontheleftandrightsidesoftheindoorunitasshownbelow.Smooththecutedgesofthesidepanelssothattheywillnotdamagetheinsulationcoating.• Forleftorrightpiping • Installingflushagainstawallwithmolding
Molding
Cutthelowersidepanelstomatchtheheightofthemolding.
Fig.5
Projection
Makesuretohookthecatch.
Drainhose
Pullthehosetoconfirmitiscon-nectedsecurely.
Fig.4
the Drain hose is removed at installation.• When routing thedrain piping,make sure that thedrain
hose(1)isroutedasshown.(Fig.4)• Insertthedrainhoseallthewaytothebaseofthedrain
pan(endconnection).(Fig.5) Makesurethatthecatchofthedrainhoseissecurelyhookedontotheprojectiononthehosefittingofthedrainpan.
• Afterconnectingthedrainhose,besuretopullthehosetoconfirmthatitisconnectedsecurely.
Frontpanel
Indoorunit
Indoorunit
Panel
Panel
2-9. ConnECtInG an IntERFaCE (option)/ConnECtoR CaBlE (option) to tHE aIR ConDItIonER
Thinpartoftheconnectingcable.Placethispartwherecustomerscannottouchit.Roomair
conditioner Mainbodyofaninterface
ThickpartoftheconnectingcableIndoorcontrolP.C.board
CN105forinterfaceCN104forconnectorcable
• Connectaninterface/connectorcabletotheindoorcontrolP.C.boardofanairconditionerwithaconnectingcable.
• Cuttingorextendingtheconnectingcableoftheinterface/connectorcableresultsindefectsinconnecting.Donotbundletheconnectingcabletogetherwithpowersupplycord,indoor/outdoorconnectingwire,and/orearthwire.Keepasmuchdistanceaspossiblebetweentheconnectingcableandthosewires.
• Thethinpartoftheconnectingcableshouldbestoredandplacedwherecustomerscannottouchit.
Rearhorizontalvane
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1)Removethepanel.2)OpenthecoveroftheindoorcontrolP.C.board.3)JointheconnectingcabletoCN105and/orCN104ontheindoorcontrolP.C.board.4)Routetheconnectingcablethroughthispointinthefigure.5)Attachthecableclampprovidedwithinterface/connectorcabletothethickpartofthe
connectingcablewithascrew4×16asshowninthefigure.6)ClosethecoveroftheindoorcontrolP.C.board.Becarefulnottocatchthethinpart
oftheconnectingcableinthecover.Reinstallthepanel.
5)
4)
3)CN105 WARNINGFix the connecting cable at the prescribed position securely.Incorrect installation may cause electric shock, fire, and/ or malfunction.
3. outDooR unIt InstallatIon
3-2. FlaRInG WoRK1)Cutthecopperpipecorrectlywithpipecutter.(Fig.1,2)2)Completelyremoveallburrsfromthecutcrosssectionofpipe.(Fig.3)
• Puttheendofthecopperpipetodownwarddirectionasyouremoveburrsinordertoavoidtoletburrsdropinthepiping.
3)Removeflarenutsattachedtoindoorandoutdoorunits,thenputthemonpipehavingcompletedburrremoval.(Notpossibletoputthemonafterflaringwork.)
4)Flaringwork(Fig.4,5).Firmlyholdcopperpipeinthedimensionshowninthetable.SelectAmmfromthetableaccordingtothetoolyouuse.
5)Check• ComparetheflaredworkwithFig.6.• Ifflareisnotedtobedefective,cutofftheflaredsectionanddoflaringworkagain.
3-3. PIPE ConnECtIon• Fastenflarenutwithatorquewrenchasspecifiedinthetable.• Whenfastenedtootight,flarenutmaybreakafteralongperiodandcauserefrigerantleakage.• Besure towrap insulationaround thepiping.Directcontactwith thebarepipingmay result inburnsor
frostbite.Indoor unit connectionConnectbothliquidandgaspipingstoindoorunit.• Applya thincoatof refrigerationoil (J)on theflaredendsof thepipes.Donotapply refrigerationoilon
screwthreads.Excessivetighteningtorquewillresultindamageonthescrew.• Forconnection,firstalignthecenter,thentightenthefirst3to4turnsofflarenut.• Usetighteningtorquetableaboveasaguidelineforindoorunitsideunionjointsection,andtightenusing
twowrenches.Excessivetighteningdamagestheflaresection.outdoor unit connectionConnectpipestostopvalvepipejointoftheoutdoorunitinthesamemannerappliedforindoorunit.• Fortightening,useatorquewrenchorspannerandusethesametighteningtorqueappliedforindoorunit.
3-4. INSULATION AND TAPING1)Coverpipingjointswithpipecover.2)Foroutdoorunitside,surelyinsulateeverypipingincludingvalves.3)Usingpipingtape(G),applytapingstartingfromtheentryofoutdoorunit.
• Stoptheendofpipingtape(G)withtape(withadhesiveagentattached).•Whenpipinghavetobearrangedthroughaboveceiling,closetorwherethetemperatureandhumidityarehigh,windadditionalcommerciallysoldinsulationtopreventcondensation.
Pipediameter(mm)
Nut(mm)
A(mm) TighteningtorqueClutchtype
tool forR410A
Clutchtypetool
forR22
Wingnuttypetool forR22
N•m kgf•cm
ø6.35(1/4”) 17
0to0.5 1.0to1.51.5to2.0
13.7to17.7 140to180ø9.52(3/8”) 22 34.3to41.2 350to420ø12.7(1/2”) 26
2.0to2.549.0to56.4 500to575
- - - -
Copperpipe
Good
TiltedUnevenBurred
Nogood
Fig.1 Fig.2
BurrCopperpipeSparereamer
Pipecutter
Clutchtype
Flaringtool
Fig.4
Fig.3
Smoothallaround
Evenlengthallaround
Insideisshiningwithoutanyscratches.
Flarenut
Die
Fig.5 Fig.6
Copperpipe
Wingnuttype
WARNING
When installing the unit, securely connect the refrigerant pipes before starting the compressor.
3-1. ConnECtInG WIREs FoR outDooR unIt1)Opentheservicepanel.2)Loosenterminalscrew,andconnectindoor/outdoorunitconnectingwire(A)fromthe
indoorunitcorrectlyontheterminalblock.Becarefulnottomakemis-wiring.Fixthewiretotheterminalblocksecurelysothatnopartofitscoreisappeared,andnoex-ternalforceisconveyedtotheconnectingsectionoftheterminalblock.
3)Firmly tighten the terminalscrews toprevent them from loosening.After tightening,pullthewireslightlytoconfirmthattheydonotmove.
4)Connectpowersupplycord(K).5)Fix indoor/outdoorunitconnectingwire(A)andpowersupplycord(K)withthecord
clamp.6)Closetheservicepanelsecurely.
• Makeearthwirealittlelongerthanothers.(Morethan100mm)• Forfutureservicing,giveextralengthtotheconnectingwires.• Besuretoattacheachscrewtoitscorrespondentterminalwhensecuringthecordand/or
thewiretotheterminalblock.
Terminalblock
Cordclamp
Terminalblock
Powersupplycord(K)
15mm35mm
Leadwire
<KJ25,35> <KJ50,60>Indoor/outdoorunitconnectingwire(A)
Power supply cord (K)
Whenmountingtheinterfaceandtheconnectorcable,usethisscrewtofixtheconnectingcable.
3)CN104
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En-7
Whenrelocatingordisposingoftheairconditioner,pumpdownthesystemfollowingtheprocedurebelowsothatnorefrigerantisreleasedintotheatmos-phere.1)Connectthegaugemanifoldvalvetotheserviceportofthestopvalveonthegaspipesideoftheoutdoorunit.2)Fullyclosethestopvalveontheliquidpipesideoftheoutdoorunit.3)Closethestopvalveonthegaspipesideoftheoutdoorunitalmostcompletelysothatitcanbeeasilyclosedfullywhenthepressuregaugeshows0
MPa[Gauge](0kgf/cm2).4)StarttheemergencyCOOLoperation.
TostarttheemergencyoperationinCOOLmode,disconnectthepowersupplyplugand/orturnoffthebreaker.After15seconds,connectthepowersupplyplugand/orturnonthebreaker,andthenpresstheE.O.SWonce.(TheemergencyCOOLoperationcanbeperformedcontinuouslyforupto30minutes.)
5)Fullyclosethestopvalveonthegaspipesideoftheoutdoorunitwhenthepressuregaugeshows0.05to0MPa[Gauge](approx.0.5to0kgf/cm2).6)StoptheemergencyCOOLoperation.
PresstheE.O.SWtwicetostoptheoperation.
5. PuMPInG DoWn
4-4. EXPLANATION TO THE USER• UsingtheOPERATINGINSTRUCTIONS,explaintotheuserhowtousetheairconditioner(howtousetheremotecontroller,howtoremovetheairfil-
ters,howtoremoveorputtheremotecontrollerintheremotecontrollerholder,howtoclean,precautionsforoperation,etc.)• RecommendtheusertoreadtheOPERATINGINSTRUCTIONScarefully.
Caution:• Aftertestrunorremotesignalreceptioncheck,turnofftheunitwiththeE.O.SWortheremotecontrollerbeforeturningoffthepowersupply.Notdo-
ingsowillcausetheunittostartoperationautomaticallywhenpowersupplyisresumed.to the user• Afterinstallingtheunit,makesuretoexplaintheuseraboutautorestartfunction.• Ifautorestartfunctionisunnecessary,itcanbedeactivated.Consulttheservicerepresentativetodeactivatethefunction.Refertotheservicemanual
fordetails.
4-3. AUTO RESTART FUNCTIONThisproductisequippedwithanautorestartfunction.Whenthepowersupplyisstoppedduringoperation,suchasduringblackouts,thefunctionautomati-callystartsoperationintheprevioussettingoncethepowersupplyisresumed.(Refertotheoperatinginstructionsfordetails.)
4-2. TEST RUNMake sure the following is done.•Panelisinstalledcorrectly.•Indoorandoutdoorunitsareinstalledcorrectly,andpowerissupplied.1)PresstheE.O.SWonceforCOOL,andtwiceforHEAToperation.Testrunwillbeperformedfor30minutes.Iftheleftlamp
oftheoperationindicatorblinksevery0.5seconds,inspecttheindoor/outdoorunitconnectingwire(A)formis-wiring.Afterthetestrun,emergencymode(settemperature24ºC)willstart.
2)Tostopoperation,presstheE.O.SWseveraltimesuntilallLEDlampsturnoff.Refertooperatinginstructionsfordetails.Checking the remote (infrared) signal receptionPresstheON/OFFbuttonontheremotecontroller(12)andcheckthatanelectronicsoundisheardfromtheindoorunit.PresstheON/OFFbuttonagaintoturntheairconditioneroff.• Oncethecompressorstops,therestartpreventivedeviceoperatessothecompressorwillnotoperatefor3minutestopro-
tecttheairconditioner.
4. PURGING PROCEDURES, LEAK TEST, AND TEST RUN
Emergencyoperationswitch(E.O.SW)
When pumping down the refrigerant, stop the compressor before disconnecting the refrigerant pipes. the compressor may burst if air etc. get into it.
WARNING
4-1. PURGING PROCEDURES AND LEAK TEST
StopvalveforGAS
Stopvalvecap(Torque19.6to29.4N•m,200 to300kgf•cm)
Vacuumpump(orthevacuumpumpwiththefunctiontopreventthebackflow)
Gaugemanifoldvalve(forR410A)
Compoundpressuregauge(forR410A)–0.101MPa
(–760mmHg)
HandleLow HandleHigh
Adapterforpre-ventingthebackflow
Chargehose(forR410A)
*Close*Open
Hexagonalwrench
Precautionswhenusingthecontrolvalve Whenattachingthecontrolvalvetotheserviceport,valvecoremayde-formorloosenifexcesspressureisapplied.Thismaycausegasleak.
Serviceport
BodyClose
OpenControlvalve
A
Whenattachingthecontrolvalvetotheserviceport,makesurethatthevalvecoreisinclosedposition,andthen tightenpartA.Donot tightenpartAor turnthebodywhenvalvecoreisinopenposition.
Serviceportcap(Torque13.7to17.7N•m,140to180kgf•cm)
*4to5turns
1)Removeserviceportcapofstopvalveon thesideof theoutdoorunitgaspipe.(Thestopvalvesarefullyclosedandcoveredincapsininitialstate.)
2)Connectgaugemanifoldvalveandvacuumpumptoserv-iceportofstopvalveonthegaspipesideof theoutdoorunit.
3)Runthevacuumpump.(Vacuumizeformorethan15min-utes.)
4)Check thevacuumwithgaugemanifoldvalve, thenclosegaugemanifoldvalve,andstopthevacuumpump.
5)Leaveas it is for oneor twominutes.Make surepointergaugemanifoldvalveremainsinthesameposition.Confirmthat pressuregauge shows–0.101MPa [Gauge] (–760mmHg).
6)Removegaugemanifoldvalvequicklyfromserviceportofstopvalve.
7)Afterrefrigerantpipesareconnectedandevacuated, fullyopenall stopvalvesonbothsidesofgaspipeand liquidpipe.Operatingwithout fully opening lowers theperform-anceandthiscausestrouble.
8)Refer to 1-3., and charge theprescribedamount of re-frigerant if needed.Be sure to charge slowlywith liquidrefrigerant.Otherwise,compositionoftherefrigerantinthesystemmaybechangedandaffectperformanceoftheairconditioner.
9)Tightencapofserviceporttoobtaintheinitialstatus.10)Leaktest
StopvalveforLIQUID
Pressuregauge(forR410A)
Chargehose
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HEAD OFFICE: TOKYO BLDG., 2-7-3, MARUNOUCHI, CHIYODA-KU, TOKYO 100-8310, JAPAN
JG79A867H02
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