INSTALLATION MANUAL

FOR INSTALLER

Floor Type Air-ConditionerMFZ-KA25VAMFZ-KA35VAMFZ-KA50VA

•Thismanualonlydescribestheinstallationofindoorunit. Wheninstallingtheoutdoorunit,refertotheinstallation

manualofoutdoorunit.

English

CONTENTS1. BEFOREINSTALLATION..............................................................................2

2. INDOORUNITINSTALLATION.....................................................................4

3. FLARINGWORKANDPIPECONNECTION.................................................7

4. TESTRUN.....................................................................................................8

5. PUMPINGDOWN..........................................................................................8

6. CONNECTINGANINTERFACETOTHEAIRCONDITIONER(OPTION)....9

IMPORTANT NOTESTOCOMPLYWITHTHEREQUIREMENTSOFAUSTRALIANSTANDARDAS/NZS3000ELECTRICALINSTALLATIONS(WiringRules),THEELECTRICALWIRINGREQUIREDBETWEENTHEINDOORANDOUTDOORUNITSMUSTBEINSTALLEDBYALICENCEDELECTRICALCONTRACTOR.

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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.)

n Do not install the unit by yourself (user). Incomplete installationcouldcausefireorelectricshock, injurydueto

theunitfalling,orleakageofwater.Consultthedealerfromwhomyoupurchasedtheunitoraqualifiedinstaller.

n Perform the installation securely referring to the installation manual.

Incomplete installationcouldcausefireorelectricshock, injuryduetotheunitfalling,orleakageofwater.

n When installing the unit, use appropriate protective equipment and tools for safety.

Failuretodosocouldcauseinjury.n Install the unit securely in a place which can bear the weight of

the unit. If the installation location cannot bear the weight of the unit, the unit

couldfallcausinginjury.n Perform electrical work according to the installation manual and

be sure to use an exclusive circuit. Do not connect other electrical appliances to the circuit.

Ifthecapacityofthepowercircuitisinsufficientorthereisincompleteelectricalwork,itcouldresultinafireoranelectricshock.

n Do not damage the wires by applying excessive pressure with parts or screws.

Damagedwirescouldcausefire.n Be sure to cut off the main power in case of setting up the indoor

P.C. board or wiring works. Failuretodosocouldcauseelectricshock.n Use the specified wires to connect the indoor and outdoor units se-

curely and attach the wires firmly to the terminal block connecting sections so the stress of the wires is not applied to the sections.

Incompleteconnectingandsecuringcouldcausefire.n Do not install the unit in a place where inflammable gas may leak. Ifgasleaksandaccumulatesintheareaaroundtheunit,itcouldcause

anexplosion.n Do not use intermediate connection of the power cord or the ex-

tension cord and do not connect many devices to one AC outlet. Itcouldcauseafireoranelectricshockduetodefectivecontact,de-

fectiveinsulation,exceedingthepermissiblecurrent,etc.n Be sure to use the parts provided or specified parts for the instal-

lation work. Theuseof defectiveparts could causean injuryor leakageofwater

duetoafire,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 completely into the outlet.

Ifthereisdust,clogging,orloosepartsonthepowersupplyplugortheoutlet, itcouldcauseelectricshockorfire.If loosepartsarefoundonthepowersupplyplug,replaceit.

n Attach the electrical cover to the indoor unit and the service panel to the outdoor unit securely.

Iftheelectricalcoveroftheindoorunitand/ortheservicepaneloftheoutdoor unit arenot attached securely, it could result in a fireor anelectricshockduetodust,water,etc.

n When installing, relocating, or servicing the unit, make sure that no substance other than the specified refrigerant (R410A) enters the refrigerant circuit.

Any presence of foreign substance such as air can cause abnormalpressureriseandmayresultinexplosionorinjury.Theuseofanyre-frigerantotherthanthatspecifiedforthesystemwillcausemechanicalfailure,systemmalfunction,orunitbreakdown. In theworstcase, thiscouldleadtoaseriousimpedimenttosecuringproductsafety.

n Do not discharge the refrigerant into the atmosphere. If refrigerant leaks during installation, ventilate the room.

Ifrefrigerantcomesincontactwithafire,harmfulgascouldbegener-ated.

n Check that the refrigerant gas does not leak after installation has been completed.

Ifrefrigerantgasleaksindoors,andcomesintocontactwiththeflameofa fanheater, spaceheater, stove,etc.,harmful substanceswill begenerated.

n Use appropriate tools and piping materials for installation. ThepressureofR410Ais1.6timesmorethanR22.Notusingappropri-

atetoolsormaterialsandincompleteinstallationcouldcausethepipestoburstorinjury.

n When pumping down the refrigerant, stop the compressor before disconnecting the refrigerant pipes.

If the refrigerantpipesaredisconnectedwhile thecompressor is run-ningandthestopvalveisopen,aircouldbedrawninandthepressurein the refrigeration cycle could become abnormally high. This couldcausethepipestoburstorinjury.

n When installing the unit, securely connect the refrigerant pipes before starting the compressor.

Ifthecompressorisstartedbeforetherefrigerantpipesareconnectedandwhenthestopvalve isopen,aircouldbedrawninandthepres-sure in the refrigeration cycle couldbecomeabnormally high.Thiscouldcausethepipestoburstorinjury.

n Fasten a flare nut with a torque wrench as specified in this manual.

Iffastenedtootight,aflarenutmaybreakafteralongperiodandcauserefrigerantleakage.

n The unit shall be installed in accordance with national wiring regu-lations.

n Earth the unit correctly. Donotconnecttheearthtoagaspipe,waterpipe,lightningrodortel-

ephoneearth.Defectiveearthingcouldcauseelectricshock.

n Install an earth leakage breaker depending on the installation place.

If an earth leakage breaker is not installed, it could cause electricshock.

n Perform the drainage/piping work securely according to the instal-lation manual.

Ifthereisdefectinthedrainage/pipingwork,watercoulddropfromtheunit,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 animals may live. If small animals enter and touch the electric parts inside the unit, it

couldcauseamalfunction,smokeemission,orfire.Also,adviseusertokeeptheareaaroundtheunitclean.

INDOOR UNIT • Whereairflowisnotblocked.• Wherecoolairspreadsovertheentireroom.• Rigidwallwithoutvibration.• Whereitisnotexposedtodirectsunshine.• Whereeasilydrained.• Atadistance1mormoreawayfromyourTVandradio.Operationofthe

airconditionermayinterferewithradioorTVreceptioninareaswherere-ceptionisweak.Anamplifiermayberequiredfortheaffecteddevice.

• In a placeas far awayaspossible from fluorescent and incandescentlights(sotheinfraredremotecontrolcanoperatetheairconditionernor-mally).

• Wheretheairfiltercanberemovedandreplacedeasily.

REMOTE CONTROLLER • Whereitiseasytooperateandeasilyvisible.• Wherechildrencannottouchit.• Selectapositionabout1.2mabovethefloorandcheckthatsignalsfrom

the remote controller are surely receivedby the indoorunit from thatposition (‘beep’or ‘beepbeep’ receiving tonesounds).After that,attachremotecontrollerholder(2) toapillarorwalland installwirelessremotecontroller(12).

Note: Inroomswhereinvertertypefluorescentlampsareused,thesignalfromthewirelessremotecontrollermaynotbereceived.

WARNING (Couldleadtodeath,seriousinjury,etc.)

PhillipsscrewdriverLevelScaleUtilityknifeorscissors25,35class65mm/50Class75mmholesawTorquewrenchWrench(orspanner)

4mmhexagonalwrenchFlaretoolforR410AGaugemanifoldforR410AVacuumpumpforR410AChargehoseforR410APipecutterwithreamer

1-3. REQUIRED TOOLS FOR INSTALLATION

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1-4. SPECIFICATIONS

*1Connecttothepowerswitchwhichhasagapof3mmormorewhenopentointerruptthesourcepowerphase.(Whenthepowerswitchisshutoff,itmustinterruptallphases.)

*2Usewiresinconformitywithdesign60245IEC57.*3Neverusepipeswith thickness less thanspecified.Thepressureresistance

willbeinsufficient.*4Useacopperpipeoracopper-alloyseamlesspipe.

*5Becarefulnottocrushorbendthepipeduringpipebending.*6Refrigerantpipebendingradiusmustbe100mmormore.*7Insulationmaterial:Heatresistingfoamplastic0.045specificgravity*8Besuretousetheinsulationofspecifiedthickness.Excessivethicknessmay

cause incorrect installation of the indoor unit and insufficient thicknessmaycausedewdrippage.

ModelPowersupply*1 Wirespecifications*2 Pipesize

(thickness*3,*4) Pipelengthandheightdifference*5,*6

RatedVoltage Frequency Indoor/outdoorcon-

nectingwire Gas Liquid Max.pipelength

Max.heightdifference

Insulationthickness*7,*8

MFZ-KA25/35VA230V 50Hz 4-core

1.5mm2ø9.52mm(0.8mm) ø6.35mm

(0.8mm)20m 12m

8mmø12.7mm(1.0mm) 30m 15mMFZ-KA50VA

1-5. 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 1

* Note:TheDrainhoseisconnectedtotheunit.

Unitsshouldbeinstalledbylicensedcontractoraccordingtolocalcoderequirements.

Indoorunit

Wallholesleeve(C)

Cutofftheextralength. Pipefixingband

(E)

Wallholecover(D)

Sealthewallholegapwithputty(H).

Fixthepipetowallwithpipefixingband(E).

Fixingscrew(F)

Aftertheleaktest,applyinsulatingmate-rialtightlysothatthereisnogap.

Whenthepipingistobeattachedtoawallcontainingmetals(tinplated)ormetalnetting,useachemicallytreatedwoodenpiece20mmorthickerbetweenthewallandthepipingorwrap7to8turnsofinsulationvinyltapearoundthepiping.Touseexistingpiping,performCOOLoperationfor30minutesandpumpdownbeforeremovingtheoldairconditioner.Remakeflareaccordingtothedimensionfornewrefrigerant.

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)

1or2

(J) Refrigerationoil 1* Note:Placeindoor/outdoorunitconnectingwire(A)andpowersupplycordatleast1mawayfromtheTVantennawire.

150m

mor

below

fromthe

floor

100mmormore

100m

mor

mor

e

100mmormore

Outdoorunitsmaybedifferentinappearance.

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Wall

Outdoorside

2-2. HOLE DRILLING1)Determinethewallholeposition.2)Drill a dia. 65 mm hole (dia. 75 mm forKA50).The outdoor side

shouldbe5to7mmlowerthantheindoorside.3)Insertwallholesleeve(C).

2-1. FIXING OF INDOOR UNIT MOUNTING BRACKET• Findastructuralmaterial(suchasastud)inthewallandfixbracket(7)horizontallywithfixingscrews(8).• Topreventbracket(7)fromvibrating,besuretoinstallthefixingscrewsintheholesindicatedby[->]intheillustration.Foraddedsupport,fixingscrews

mayalsobeinstalledinotherholes.

2. INDOOR UNIT INSTALLATION

FORRIGHTDOWNWARDORLEFTDOWN-WARDPIPING(Thefollowingfigureisaviewofthebottomoftheindoorunitfromabove.)

FORREARORLEFT-REARPIPING(Thefollowingfigureisafrontviewoftheindoorunitinstallationlocation.)

FORLEFTPIPING FORRIGHTPIPING

Whentheunitisinstalledonthewall.

Whentheunitisinstalledonthefloor.

HOLE POSITIONS

ø65mm(KA25/35)ø75mm(KA50) 5-7mm

2-3. INDOOR UNIT PREPARATIONRemovethefrontpaneloftheindoorunit.1)Pushthe2 locationsmarked“PUSH”ontheupperpartof thefront

grilleuntila“click”isheard.2)Openthefrontgrilletowardyou.3)Removethe2screws.4)Grasptherearhorizontalvaneattheupperairoutlet,andopenit.5)Pushthe3locationsonthetopofthefrontpanel,andthenpullthe

upperpartofthefrontpaneltowardyou.6)Removethefrontpanelwhileliftingitup(slightly). * Thefrontpanelcanberemovedwithoutopeningthedamperofthe

lowerairoutlet.

*Donotopenthedamperofthelowerairoutlet.

Fronthorizontalvane

Rearhorizontalvane

Frontpanel

Frontpanel Push

Indoorunit

Indoorunit

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Indoorterminalblock

Indoor/outdoorunitconnectingwire(A)

Outdoorterminalblock

Earthwire(green/yellow)

• Makeearthwirealittlelongerthanothers.(Morethan55mm)• Forfutureservicing,giveextralengthtotheconnectingwires.

2-6. CONNECTING WIRES FOR INDOOR UNITYoucanconnectindoor/outdoorleadwirewithoutremovingthefrontgrille.

1)Openthefrontgrille.2)Removepanel.3)Removeelectricalcover.4)Removecordclamp.5)Passindoor/outdoorunitconnectingwire(A)fromthebackofthe

indoorunitandprocesstheendofthewire.6)Loosen terminal screw, and connect first the earth wire, then

indoor/outdoor unit connectingwire (A) to the terminal block.Becarefulnot tomakemis-wiring.Fix thewire to the terminalblocksecurely so thatnopart of its core isappeared,andnoexternalforceisconveyedtotheconnectingsectionoftheterminalblock.

7)Firmlytightentheterminalscrewstopreventthemfromloosening.After tightening, pull thewires lightly to confirm that theydonotmove.

8)Secureindoor/outdoorunitconnectingwire(A)andtheearthwirewith the cord clamp. Never fail to hook the left claw of the cordclamp.Attachthecordclampsecurely.

Leadwire

Terminalblock

Fixingscrew

Indoor/outdoorunitconnectingwire(A)

Electricalcover

Cordclamp

35mm15mm

2-5. EMBEDDING THE INDOOR UNIT IN A WALL

• Wheninstallingagrating,useagratingwithnarrowupperandlowerhorizontalbarssothattheairflowfromtheupperandlowerairout-lets does not contact thebars. If thehorizontal barswill block thelowerairoutlet,useastand,etc.,toadjusttheheightoftheindoorunit.Iftheupperorlowerairoutletisblocked,theairconditionerwillnotbeabletocoolorwarmtheroomwell.

• Donotblockthereceiverwiththegrating.Otherwise,thegratingwillinterferewiththeremotecontrollersignalandsignificantlyreducethedistanceandarea(angle)fromwhichthesignalscanbereceived.

• Use a grating with vertical bars, etc., that has at least 75% openarea. If the gratinghashorizontal barsor if the openarea is lessthan75%,performancecouldbereduced.

• When the indoorunit is embedded in a wall (built-in), the time ittakesfortheroomtemperaturetoreachthesettemperaturewillin-crease.

100ormore Upperairoutlet

Lowerairoutlet

ReceiverGrating

Indoorunit

100ormore

25-35

100ormore

EMBEDDED INDOOR UNIT SETTING (MUST BE PERFORMED)• Whenembeddingtheindoorunitinawall,restrictthemovementof

thehorizontal vane for theupperairoutlet so that it onlyoperateshorizontally.

• Ifthissettingisnotperformed,heatwillbuildupinthewallandtheroomwillnotbecooledorwarmedproperly.

• CutthewiresontheleftandrightsidesofJRFBLusingapairofnip-pers,etc.,asshownbelow.

Cutthewiresonbothends.

Cut

Controlboard

2-4. INDOOR UNIT INSTALLATION• Hookthetopoftheindoorunitontheindoorunitmountingbracket(7).• Usetheincludedwoodscrews(9)andwasher(10),andfastenthe

indoorunitat2 locations( )eachat thetopandthemiddleof theunit.

CuttheJRFBLwires.

JRFBL

JR24

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Donotmakedrainpipingasshownbelow.

Accumulateddrainwater

Air

WavingWaterleakage

Donotraise

Waterleakage

Waterleakage

Tipofdrainhosedippedinwater

Ditch

Atleast50mmgap

Downwardslope

Drainhose

SofthoseI.D.15mm

DrainhoseHardvinylchloridepipeI.D.30mm

Insertsecurely

Differentdiameterjoint

70cmormore

Fig.1 Fig.2 Fig.3

2-8. DRAIN PIPING• Iftheextensiondrainhosehastopassthrougharoom,besuretowrapitwithcommerciallysoldinsulation.• Thedrainhoseshouldpointdownwardforeasydrainflow.(Fig.1)• Ifthedrainhoseprovidedwiththeindoorunitistooshort,connectitwithdrainhose(I)thatshouldbeprovidedatyoursite.(Fig.2)• Whenconnectingthedrainhosetothehardvinylchloridepipe,besuretoinsertitsecurelyintothepipe.(Fig.3)

2-7. PIPE FORMING AND INSTALLATIONPipe Forming

• Routethedrainhosediagonallybelowtheconnectingpipes.• Makesurethatthedrainhoseisnotroutedupwardandthatthere

arenowavesinthehose.• Donotpullthehosewhenapplyingthetape.• Routethepipingsothatitdoesnotprojectpasttherearofthe

indoorunit.(Refertothefiguretotheright.)

Connecting Pipe Installation• Installtheconnectingpipessothatthepipingcanmoveslightlyto

thefront,back,left,andright.

Pipingtape

Drainhose

Refrigerantpiping

Pipingbentout-ward

Push

• Besuretoinsulatetheconnectingpipesandplacethemneartherearoftheindoorunitsothattheydonotcontactthefrontpanel.

• Becarefulnottocrushtheconnectingpipeswhenbendingthem.

Wrapthefelttape(11)tightlyaroundthepipesandhosestartingnearwherethepipesandhoseareroutedfromtheindoorunit.(Theoverlapwidthofthefelttape(11)shouldnotbemorethan1/2ofthetapewidth.)

Felttape(11)

Startwrappingthepipingtape(G)aroundthepipesandhose10mminsidetheindoorunit.

Fastentheendofthefelttape(11)withabandagestopper.

Makesurethatthedrainhoseisnotroutedupward.

FORLEFTORLEFT-REARPIPINGBundletheconnectingpipesanddrainhosetogether,andthenwraptheminfelttape(11).

Cutandusethelowersidepanelsontheleftandrightsidesofthein-doorunitasshownbelow.Smooththecutedgesofthesidepanelssothattheywillnotdamagetheinsulationcoating.

• Forleftorrightpiping • Installingflushagainstawallwithmolding

Molding

Cutthelowersidepanelstomatchtheheightofthemolding.

RIGHTDOWNWARDPIPING OTHERPIPING

Band(5)

Removethecover.

Pipecover(4)

Band(5)

The Drain hose is removed at installation.• Whenroutingthedrainpiping,makesurethatthedrainhose(1)isroutedasshown.(Fig.4)• Insertthedrainhoseallthewaytothebaseofthedrainpan(endconnection).(Fig.5) Makesurethatthecatchofthedrainhoseissecurelyhookedontotheprojectiononthehosefittingofthedrainpan.• Afterconnectingthedrainhose,besuretopullthehosetoconfirmthatitisconnectedsecurely.

200

50

Fig.4Thecatchshouldbelocatedontheundersideofthehose. Fig.5

Projection*Thisprojectionislocatedontheundersideofthehosefitting.

Makesuretohookthecatch.

Drainhose

Pullthehosetoconfirmitiscon-nectedsecurely.

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3. FLARINGWORKANDPIPECONNECTION

3-1.FLARINGWORK1)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.

3-2.PIPECONNECTION• Fastenflarenutwithatorquewrenchasspecifiedinthetable.• Whenfastenedtootight,flarenutmaybreakafteralongperiodandcauserefrigerantleakage.IndoorunitconnectionConnectbothliquidandgaspipingstoindoorunit.• Applyathincoatofrefrigerationoil(J)ontheseatsurfaceofpipe.• Forconnection,firstalignthecenter,thentightenthefirst3to4turnsofflarenut.• Usetighteningtorquetableaboveasaguidelineforindoorunitsideunionjointsection,andtightenusingtwowrench-

es.Excessivetighteningdamagestheflaresection.

OutdoorunitconnectionConnectpipestostopvalvepipejointoftheoutdoorunitinthesamemannerappliedforindoorunit.• Fortightening,useatorquewrenchorspannerandusethesametighteningtorqueappliedforindoorunit.

3-3.INSULATIONANDTAPING1)Coverpipingjointswithpipecover.2)Foroutdoorunitside,surelyinsulateeverypipingincludingvalves.3)Usingpipingtape(G),applytapingstartingfromtheentryofoutdoorunit.

• Stoptheendofpipingtape(G)withtape(withadhesiveagentattached).• Whenpipinghavetobearrangedthroughaboveceiling,closetorwherethetemperatureandhumidityarehigh,windadditionalcommerciallysold

insulationtopreventcondensation.

Pipediameter(mm)

Nut(mm)

A(mm) TighteningtorqueClutch

typetoolforR410A

Clutchtypetool

forR22

WingnuttypetoolforR22

N•m kgf•cm

ø6.35(1/4”) 1�

0to0.5 1.0to1.51.5to2.0

13.�to1�.� 140to180ø9.52(3/8”) 22 34.3to41.2 350to420ø12.7(1/2”) 26

2.0to2.549.0to56.4 500to575

ø15.88(5/8”) 29 73.5to78.4 750to800

Copperpipe

Good

TiltedUnevenBurred

Nogood

Fig.1

Fig.2

BurrCopperpipe

SparereamerPipecutter

Clutchtype

Flaringtool

Fig.4

Fig.3

Smoothallaround

Evenlengthallaround

Insideisshin-ingwithoutanyscratches.

Flarenut

Die

Fig.5 Fig.6

Copperpipe

Wingnuttype

2-9.FRONTPANELINSTALLATION1)Openthehorizontalvanefortheupperairoutlet.2)Fitthefrontpanelontotheindoorunitfromthefront,andthenpush

theupperandlowerareasthataremarkedwitharrows.3)Pushtheareasbelowtheupperairoutletandtheareasaboveand

belowthelowerairoutletthataremarkedwitharrows.4)After installingthefrontpanel, install the2screwsbelowtheupper

airoutlet.

WARNING

Wheninstallingtheunit,securelyconnecttherefrigerantpipesbeforestartingthecompressor.

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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

4-3. 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.

4-2. AUTO RESTART FUNCTIONThisproductisequippedwithanautorestartfunction.Whenthepowersupplyisstoppedduringoperation,suchasduringblackouts,thefunctionautomati-callystartsoperationintheprevioussettingoncethepowersupplyisresumed.(Refertotheoperatinginstructionsfordetails.)

4-1. TEST RUNMake sure the following is done.•Theareaaroundthedamperisfreeofanyobjects,andthemovementofthedamperisnotblocked.•Panelisinstalledcorrectly.•Indoorandoutdoorunitsareinstalledcorrectly,andpowerissupplied.

1)PresstheE.O.SWonceforCOOL,andtwiceforHEAToperation.Testrunwillbeperformedfor30minutes.Iftheleftlampoftheoperationindicatorblinksevery0.5seconds,inspecttheindoor/outdoorunitconnectingwire(A)formis-wiring.Afterthetestrun,emergencymode(settemperature24ºC)willstart.

2)Tostopoperation,presstheE.O.SWseveraltimesuntilallLEDlampsturnoff.Refertooperatingin-structionsfordetails.

Checking the remote (infrared) signal receptionPresstheON/OFFbuttonontheremotecontroller(12)andcheckthatanelectronicsoundisheardfromtheindoorunit.PresstheON/OFFbuttonagaintoturntheairconditioneroff.• Oncethecompressorstops,therestartpreventivedeviceoperatessothecompressorwillnotoperatefor3minutestoprotecttheairconditioner.

4. 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

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6. CONNECTING AN INTERFACE TO THE AIR CONDITIONER (OPTION)

2.Removethefrontpanelandtheelectricalcover.3.Slideouttheindoorcontrolboard,andconnecttheconnectingcabletoCN105ontheindoorcontrolboard.4.Removethescrew(B)showninthephotoblow.Fixthemountingcordclamp(medium) ,whichhasattachedtotheconnectingcable,withthescrew(B).5.Securetheconnectingcablewiththeclampandhookaccordingtothephotobelow.

6.Reinstalltheindoorcontrolboard,theelectricalcover,andthefrontpanel.

Screw(B)

Mountingcordclamp(medium)

Connectingcable

Clamp

Hook

Electricalbox

50mmInsulationcoatingpart

Mountingcordclamp(medium)

Connecting an interface to the air conditioner•Connectaninterfacetotheindoorcontrolboardofanairconditionerwithaconnectingcable.•Cuttingorextendingtheconnectingcableoftheinterfaceresultsindefectsinconnecting.Donotbundletheconnectingcabletogetherwithpowersupply

cord,indoor/outdoorconnectingwire,and/orearthwire.Keepasmuchdistanceaspossiblebetweentheconnectingcableandthosewires.•Thethinpartoftheconnectingcableshouldbestoredandplacedwherecustomerscannottouchit.

Thinpartoftheconnectingcable.Placethispartwherecustomerscannottouchit.

Roomairconditioner

Indoorcontrolboard

CN105 Thickpartoftheconnectingcable

MainbodyofaninterfaceConnector

1.Attachthemountingcordclamp(medium) totheconnectingcableat50mmfromtheedgeofaninsulationcoatingpart.

Fix the connecting cable at the prescribed position securely.Incorrect installation may cause electric shock, fire, and/ or malfunction.

WARNING

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HEAD OFFICE: TOKYO BLDG., 2-7-3, MARUNOUCHI, CHIYODA-KU, TOKYO 100-8310, JAPAN

JG79A144H06

HEAD OFFICE: TOKYO BLDG., 2-7-3, MARUNOUCHI, CHIYODA-KU, TOKYO 100-8310, JAPAN

JG79A144H06.indd 12 2012/09/25 9:44:26