Fujitsu ARTG65LHTA Installation guide

Brand: Fujitsu

Model: ARTG65LHTA

Type: Installation guide

En-1

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.

Installationofthisproductmustbedonebyexperiencedservicetechniciansorprofes-

sionalinstallersonlyinaccordancewiththismanual.Installationbynonprofessional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.

Donotturnonthepoweruntilallworkhasbeencompleted.Turningonthepower

beforetheworkiscompletedcancauseseriousaccidentssuchaselectricshockor

re.

Toavoidgettinganelectricshock,nevertouchtheelectricalcomponentssoonafter

thepowersupplyhasbeenturnedoff.Afterturningoffthepower,alwayswait

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

Ifrefrigerantleakswhenyouareworking,ventilatethearea.Iftheleakingrefrigerant

isexposedtoadirectameitmayproduceatoxicgas.

Donotusethisequipmentwithairoranyotherunspeciedrefrigerantintherefriger-

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

Installationmustbeperformedinaccordancewithregulations,codes,orstandardsfor

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

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.

Toavoiddangerofsuffocation,keeptheplasticbagorthinlmusedasthepackaging

materialawayfromyoungchildren.

CAUTION

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

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

Readcarefullyallsafetyinformationwritteninthismanualbeforeyouinstallorusethe

airconditioner.

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,earth(ground)theproductcorrectly,andusethepowercable

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

Theproductisnotexplosionproof,andthereforeshouldnotbeinstalledinexplosive

atmosphere.

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.

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

techniciansforrepairing.

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

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

Donotplaceanyotherelectricalproductsorhouseholdbelongingsundertheproduct.

Condensationdrippingfromtheproductmightgetthemwet,andmaycausedamage

ormalfunctionoftheproperty.

PARTNo.9381386260

Forauthorizedservicepersonnelonly.

AIR CONDITIONER

Indoor Unit (Duct type)

INSTALLATION MANUAL

NOTE: Thismanualdescribeshowtoinstalltheairconditionerdescribedabove.Handling

andinstallationshallonlybedonebyprofessionalsasoutlinedinthismanual.

1. SAFETYPRECAUTIONS.................................................................................1

2. PRODUCTSPECIFICATION............................................................................2

2.1. PrecautionsforusingR410Arefrigerant ………………………………… 2

2.2. Installationtools …………………………………………………………… 2

2.3. Accessories ………………………………………………………………… 2

2.4. Selectingthepipematerial………………………………………………… 2

2.5. Piperequirement…………………………………………………………… 3

2.6. Electricalrequirement……………………………………………………… 3

2.7. Optionalparts ……………………………………………………………… 3

3. INSTALLATIONWORK....................................................................................3

3.1. Selectinganinstallationlocation ………………………………………… 3

3.2. Installationdimension……………………………………………………… 4

3.3. Installingtheunit …………………………………………………………… 4

3.4. Installingthedrainhose…………………………………………………… 5

3.5. Freshairintake……………………………………………………………… 6

4. PIPEINSTALLATION.......................................................................................7

4.1. Pipeconnection …………………………………………………………… 7

4.2. Installingheatinsulation…………………………………………………… 7

5. ELECTRICALWIRING.....................................................................................8

5.1. Wiringmethod ……………………………………………………………… 8

6. REMOTECONTROLLERSETTING................................................................9

7. FUNCTIONSETTING......................................................................................9

7.1. Functiondetails …………………………………………………………… 9

7.2. Staticpressure……………………………………………………………… 11

8. GROUPCONTROL........................................................................................ 11

8.1. Groupcontrolsystem ……………………………………………………… 11

8.2. Multipleremotecontrol ……………………………………………………12

9. OPTIONALPARTS.........................................................................................12

9.1. Optionalparts ………………………………………………………………12

9.2. Externalinputandoutput ………………………………………………… 12

9.3. Remotesensor ……………………………………………………………13

9.4. Installationdetails……………………………………………………………13

9.5. Fandelaysetting……………………………………………………………13

9.6. Wiringconnection …………………………………………………………13

10.CHECKLIST..................................................................................................14

11. TESTRUN.....................................................................................................14

12.CUSTOMERGUIDANCE...............................................................................14

13.ERRORCODES.............................................................................................14

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2. PRODUCT SPECIFICATION

2. 1. Precautions for using R410A refrigerant

WARNING

Donotintroduceanysubstanceotherthantheprescribedrefrigerantintotherefrigera-

tioncycle.Ifairenterstherefrigerationcycle,thepressureintherefrigerationcycle

willbecomeabnormallyhighandcausethepipingtorupture.

Ifthereisarefrigerantleak,makesurethatitdoesnotexceedtheconcentrationlimit.

Ifarefrigerantleakexceedstheconcentrationlimit,itcanleadtoaccidentssuchas

oxygenstarvation.

Donottouchrefrigerantthathasleakedfromtherefrigerantpipeconnectionsorother

area.Touchingtherefrigerantdirectlycancausefrostbite.

Ifarefrigerantleakoccursduringoperation,immediatelyvacatethepremisesand

thoroughlyventilatethearea.Iftherefrigerantcomesincontactwithaame,itpro-

ducesatoxicgas.

2. 2. Installation tools

WARNING

ToinstallaunitthatusesR410Arefrigerant,usededicatedtoolsandpipingmateri-

alsthathavebeenmanufacturedspecicallyforR410Ause.Becausethepressure

ofR410Arefrigerantisapproximately1.6timeshigherthanthe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.

Tool name Changes

Gauge manifold

Thepressureintherefrigerantsystemisextremelyhigh

andcannotbemeasuredwithaconventionalgauge.

Topreventerroneousmixingofotherrefrigerants,

thediameterofeachporthasbeenchanged.Itis

recommendedtouseagaugemanifoldwithahigh

pressuredisplayrangeof–0.1to5.3MPaandalow

pressuredisplayrangeof–0.1to3.8MPa.

Charging hose

Toincreasepressureresistance,thehosematerialand

basesizewerechanged.(Thechargingportthread

diameterforR410Ais1/2-20UNF.)

Vacuum pump

Aconventionalvacuumpumpcanbeusedbyinstallinga

vacuumpumpadapter.

Besurethatthepumpoildoesnotbackowintothe

system.Useonecapableforvacuumsuctionof

–100.7kPa(5Torr,–755mmHg).

Gas leakage detector SpecialgasleakagedetectorforR410Arefrigerant.

2. 3. Accessories

WARNING

Forinstallationpurposes,besuretousethepartssuppliedbythemanufactureror

otherprescribedparts.Theuseofnon-prescribedpartscancauseseriousaccidents

suchastheunitfalling,waterleakage,electricshock,orre.

•Thefollowinginstallationpartsarefurnished.Usethemasrequired.

•KeeptheInstallationManualinasafeplaceanddonotdiscardanyotheraccessories

untiltheinstallationworkhasbeencompleted.

Name and Shape Q’ty Description

OperationManual

InstallationManual

(indoorunit)

1 (Thisbook)

InstallationManual

(remotecontroller)

Name and Shape Q’ty Description

SpecialnutA

(largeange)

Forsuspendingtheindoorunit

fromceiling

SpecialnutB

(smallange) 



Washer

Couplerheatinsulation(large)



Forindoorsidepipejoint

(gaspipe)

Couplerheatinsulation(small)



Forindoorsidepipejoint

(liquidpipe)

Cabletie(large)

4 Forxingtheheatinsulation

Cabletie(medium)

Forxingtheremotecontroller

cable

Cabletie(small)

Forxingtheremotecontroller

cable

Remotecontroller

(WDDtype)

1 Forairconditioneroperation

Remotecontrolleraccessories

1set

Seeinstallationmanualfor

remotecontroller

Drainhoseinsulation

Insulatesthedrainhoseand

vinylhose

Drainhose

Forinstallingdrainpipe

VP25(O.D.32,I.D.25)

Hoseband

1 Forinstallingdrainhose

2. 4. Selecting the pipe material

CAUTION

Donotuseexistingpipes.

Usepipesthathavecleanexternalandinternalsideswithoutanycontaminationwhich

maycausetroubleduringuse,suchassulfur,oxide,dust,cuttingwaste,oil,orwater.

Itisnecessarytouseseamlesscopperpipes.

Material:Phosphordeoxidizedseamlesscopperpipes

Itisdesirablethattheamountofresidualoilislessthan40mg/10m.

Donotusecopperpipesthathaveacollapsed,deformed,ordiscoloredportion(es-

peciallyontheinteriorsurface).Otherwise,theexpansionvalveorcapillarytubemay

becomeblockedwithcontaminants.

Improperpipeselectionwilldegradeperformance.AsanairconditionerusingR410Ain-

curspressurehigherthanwhenusingconventionalrefrigerant,itisnecessarytochoose

adequatematerials.

•ThicknessesofcopperpipesusedwithR410Aareasshowninthetable.

•Neverusecopperpipesthinnerthanthoseindicatedinthetableeveniftheyareavailable

onthemarket.

Pipe outside diameter [mm (in.)] Thickness [mm]

6.35(1/4) 0.8

9.52(3/8) 0.8

12.70(1/2) 0.8

15.88(5/8) 1.0

19.05(3/4) 1.2

22.22(7/8) 1.0

25.40(1) 1.0

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2. 7. Optional parts

Parts name Model No. Summary

WiredRemoteController UTY-RNRYZ3

Forairconditioneroperation

(2-wiretype)

WiredRemoteController

UTY-RNNYN

UTY-RVNYU

Forairconditioneroperation

(3-wiretype)

SimpleRemoteController

UTY-RSRY

Forairconditioneroperation

(2-wiretype)

UTY-RSNYN

Forairconditioneroperation

(3-wiretype)

IRreceiverunit UTY-LBTYM Forairconditioneroperation

Zonecontrolinterface

UTY-CDPXZC

Usetocontrolindividualairow

toeachzone

UTY-CDPXZD

Remotesensor UTY-XSZX Roomtemperaturesensor

Externalinputandoutput

PCB

UTY-XCSX

Forconnectingexternal

devices

Externalconnectkit UTY-XWZXZG Forcontroloutputport

Airlterkit UTD-LFKA ―

Drainpumpkit UTZ-PX1NAB ―

Separationkitforduct UTD-TJKA Toavoidtrasses

3. INSTALLATION WORK

WARNING

Donotturnonthepoweruntilallinstallationworkiscomplete.

Carryingandinstallationoftheunitshouldbeperformedbyasufcientnumberof

peopleandwithsufcientequipmentthatisadequatefortheweightoftheunit.

Performingsuchworkwithaninsufcientnumberofpeopleorwithinadequate

equipmentcouldresultindroppingoftheunitorpersonalinjury.

CAUTION

Forinstallationdetails,refertothetechnicaldata.

3. 1. Selecting an installation location

Decidethemountingpositiontogetherwiththecustomerasfollows.

WARNING

Selectinstallationlocationsthatcanproperlysupporttheweightoftheindoorunit

andwhichwillnotamplifysoundorvibration.Iftheinstallationlocationisnotstrong

enough,theindoorunitmayfallandcauseinjuries.

Installtheunitssecurelysothattheydonottoppleorfall.

CAUTION

Donotinstalltheindoorunitinthefollowingareas:

• Areawithhighsaltcontent,suchasattheseaside.

Itwilldeterioratemetalparts,causingthepartstofallortheunittoleakwater.

• Arealledwithmineraloilorcontainingalargeamountofsplashedoilorsteam,

suchasakitchen.

Itwilldeteriorateplasticparts,causingthepartstofallortheunittoleakwater.

• Areathatgeneratessubstancesthatadverselyaffecttheequipment,suchassulfuric

gas,chlorinegas,acid,oralkali.Itwillcausethecopperpipesandbrazedjointsto

corrode,whichcancauserefrigerantleakage.

• Areathatcancausecombustiblegastoleak,containssuspendedcarbonbersor

ammabledust,orvolatileinammablessuchaspaintthinnerorgasoline.Ifgas

leaksandsettlesaroundtheunit,itcancauseare.

• Areawhereanimalsmayurinateontheunitorammoniamaybegenerated.

Donotusetheunitforspecialpurposes,suchasstoringfood,raisinganimals,growing

plants,orpreservingprecisiondevicesorartobjects.Itcandegradethequalityofthe

preservedorstoredobjects.

Donotinstallwherethereisthedangerofcombustiblegasleakage.

Donotinstalltheunitnearasourceofheat,steam,orammablegas.

Installtheunitwheredrainagedoesnotcauseanytrouble.

Installtheindoorunit,outdoorunit,powersupplycable,transmissioncable,andremote

controlcableatleast1mawayfromatelevisionorradioreceivers.Thepurposeofthis

istopreventTVreceptioninterferenceorradionoise.

(Eveniftheyareinstalledmorethan1mapart,youcouldstillreceivenoiseunder

somesignalconditions.)

Installtheunitwhereambienttemperaturedoesnotreach60°Cormore.

Takeameasuresuchasventilationforanenvironmentinwhichheatisretained.

Ifchildrenunder10yearsoldmayapproachtheunit,takepreventivemeasuressothat

theycannotreachtheunit.

2. 5. Pipe requirement

CAUTION

Refertotheinstallationmanualoftheoutdoorunitfordescriptionofthelengthofcon-

nectingpipeorfordifferenceofitselevation.

Diameter [mm (in.)]

Liquid

12.70(1/2)

Gas

25.40(1)

• Usepipewithwater-resistantheatinsulation.

CAUTION

•Wrapheatinsulationaroundbothgaspipeandliquidpipe.

Noheat-insulationworkorincorrectheat-insulationworkmaycausewaterleaks.

•Inareversecyclemodel,useheatinsulationwithheatresistanceabove120°C.

•Ifexpectedhumidityoftheinstallationlocationofrefrigerantpipesishigherthan

70%,wraptheheatinsulationaroundtherefrigerantpipes.

Iftheexpectedhumidityisbetween70%and80%,useheatinsulationthathas

athicknessof15mmormore.

Iftheexpectedhumidityishigherthan80%,useheatinsulationthathasa

thicknessof20mmormore.

•Theuseofthinnerheatinsulationthanspeciedabove,maycauseacondensation

onthesurfaceoftheinsulation.

•Useheatinsulationwiththermalconductivityof0.045W/(

m•K

)orless,at20

°C

2. 6. Electrical requirement

2. 6. 1. Cable specication

WARNING

Standardforelectricalwiringandequipmentdiffersineachcountryorregion.Beforeyou

startelectricalworking,conrmrelatedregulations,codes,orstandards.

Cable

Conductor size

(mm

)

Type

Remarks

Connectioncable 1.5(MIN.) Type60245IEC57

3Wire+Earth(Ground),

1φ240V

Powersupplycable

1.5(MIN.) Type60245IEC57

2Wire+Earth(Ground),

1φ240V

Max.CableLength:Limitvoltagedroptolessthan2%.Increasecablegaugeifvoltage

dropis2%ormore.

Cable

Conductor size

(mm

)

Type

Remarks

Remotecontroller

cable

(2-wiretype)

0.33to1.25

Non-polar2core,

twistedpair

Useshieldedcable(locally

purchased)inaccordance

withtheregionalcable

standard.

Remotecontroller

cable

(3-wiretype)

0.33 Polar3core

2. 6. 2. Circuit breaker specication

CAUTION

Besuretoinstallabreakerofthespeciedcapacity.

Regulationforbreakersdiffersfromeachlocality,referinaccordancewithlocalrules.

Breaker capacity

[A]

Earth leakage breaker

[mA]

15 30

•Selecttheappropriatebreakerofthedescribedspecicationaccordingtothenationalor

regionalstandards.

•Selectthebreakerthatenoughloadcurrentcanpassthroughit.

•Beforestartingworkcheckthatpowerisnotbeingsuppliedtoallpolesoftheindoorunit

andoutdoorunit.

•Installallelectricalworksinaccordancetostandard.

•Installthedisconnectdevicewithacontactgapofatleast3mminallpolesnearbythe

units.(Bothindoorunitandoutdoorunit)

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(1) Theinletandoutletportsshouldnotbeobstructed;theairshouldbeabletoblowall

overtheroom.

(2) Leavethespacerequiredtoservicetheairconditioner.

(3) Installtheunitwhereconnectiontotheoutdoorunitiseasy.

(4) Installtheunitwheretheconnectionpipecanbeeasilyinstalled.

(5) Installtheunitwherethedrainpipecanbeeasilyinstalled.

(6) Installtheunitwherenoiseandvibrationsarenotamplied.

(7) Takeservicing,etc.,intoconsiderationandleavethespaces.Alsoinstalltheunitwhere

theltercanberemoved.

(8) Donotinstalltheunitwhereitwillbeexposedtodirectsunlight.

Correctinitialinstallationlocationisimportantbecauseitisdifculttomoveunitafteritis

installed.



3. 2. Installation dimension

● Installation by which service space is made on top of the unit

(recommended)

Ifmaintenanceworkistobedonefromthetop,keepthespaceofthemorethan

450mmbetweentheindoorunitandceiling.

Unit: mm

20ormore

450ormore

2500ormore

(Whennoceiling)

500ormore

150or



● Installation by which service is carried out from the bottom of the unit

Unit: mm

2500ormore

(Whennoceiling)

150or

20ormore

500ormore

•

Provideaserviceaccessformaintenancepurposes.

(1) MaintenanceworkofthecontrolboxispossiblewiththeServiceaccessofthe

measurementshowninthegure.

(2) Ifmaintenanceworkistobedonefromthebottomside,theServiceaccessneedsto

belargerthantheoutsidedimensionofthefanunit.

(Bottom side) Unit: mm

Serviceaccess

700ormore

500ormore

Controlbox

AIR

(Bottom side) Unit: mm

600ormore

100

500ormore

Fanunitside

AIR

Serviceaccess

2000ormore

3. 3. Installing the unit

WARNING

Carryingandinstallationoftheunitshouldbeperformedbyasufcientnumber

ofpeopleandwithsufcientequipmentthatisadequatefortheweightoftheunit.

Performingsuchworkwithaninsufcientnumberofpeopleorwithinadequate

equipmentcouldresultindroppingoftheunitorpersonalinjury.

Ifthejobisdonewiththepanelframeonly,thereisariskthattheunitwillcomeloose.

Pleasetakecare.

Whenfasteningthehangers,maketheboltpositionsuniform.

CAUTION

Conrmthedirectionsoftheairintakeandoutletbeforeinstallingtheunit.

3. 3. 1. Instructions

Unpacking

•Leavethepackingmaterialsonuntiltheunitisattheinstallationsite.

•Removethepackinghardwareanddisposeofit.

•Becarefulnottodisposetheaccessories.

Unitispackedupsidedown.

Separating the unit for installation

Youcanseparatetheheatexchangerunitandfanunitforinstallation.

Refertothe“SEPARATIONMETHOD”labelattachedtotheindoorunitfordetails.

CAUTION

Donotinstallthepairedunits(heatexchangerunitandfanunit)inseparatelocations.

Itmaycausemalfunctionoftheproductorwaterleakage.

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3. 3. 2. Hanging bolt installation diagram

(Top side) Unit: mm

Inletport

Outletport

AIR

1500

1440

1400

780

900

850

(Right side) Unit: mm

277

282

316

HangingboltM10

(Locallypurchased)

SpecialnutA

(Accessories)

Washer

(Accessories)

Hanger

SpecialnutB

(Accessories)

Bolt Strength 9.81to14.71N·m(100to150kgf·cm)

CAUTION

FastentheunitsecurelywithspecialnutsAandBsothattheunitdoesnotfall.

3. 3. 3. Leveling

Baseverticaldirectionlevelingontheunit(rightandleft).

(Right side)

Level

AIR

Basehorizontaldirectionlevelingontopoftheunit.

Drainhose

0–5mm

Level

Giveaslighttilttothesidetowhichthedrainhoseisconnected.Thetiltshouldbeinthe

rangeof0mmto5mm.

3. 4. Installing the drain hose

CAUTION

Installthedrainhoseinaccordancewiththeinstructionsinthisinstallationmanualand

keeptheareawarmenoughtopreventcondensation.Problemswiththepipingmay

leadtowaterleaks.

Besuretoproperlyinsulatethedrainhosesothatthewaterwillnotdripfromthe

connectedparts.

Thepositionoftheinstalleddrainhoseshouldhaveadownwardgradientof1/100or

more.

Donotconnectthedrainhoseinwhichammoniaorothertypesofgasaffectingthe

unitisgenerated.Heatexchangeerosionmayoccur.

Installthedrainhoseaccordingtothemeasurementsgiveninthefollowinggure.

(Right side) Unit: mm

Drainpipe

Φ32mm(O.D.)

145

300

280

3. 4. 1. How to install the drain hose

(1) Installthedrainhose(accessories)tothedrainportoftheindoorunit.Attachthehose

bandaroundthehosewithinthedimensionshown.Securermlywiththehoseband.

(2) Attachthedrainpipe(locallypurchased).Usegeneralhardpolyvinylchloridepipe

(VP25)[outsidediameter38mm]andconnectitwithadhesive(polyvinylchloride)so

thatthereisnoleakage.

(3) Checkthedrainage.

(4) Wrapthedrainhoseinsulationaroundthedrainhoseconnection.

Hoseband(Accessories)

SoftPVCside

Areato

apply

adhesive

Jointpipe

(Locallypurchased)

Drainpipe(VP25)

(Locallypurchased)

5~10mm

20mm

Drainhose

(Accessories)

4mmorless

15mm

Indoorunit

Drainhose

100mm

Drainhoseinsulation

(Accessories)

Hoseband(Accessories)

Overlaptheheatinsulation.

Drainhoseinsulation

(Accessories)

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3. 4. 2. When drain pump is used (Option is necessary)

Gapof1.5to2m

700mmorless

Horizontalor

upwardgradient

Supporter

Max.300mm

Locallyarrangedpipe

GOOD

VP25[O.D

32mmormore]

Rise

Airbleeding

PROHIBITED

Trap

Observe the following procedures to construct centralized drain pipe ttings.

VP30ormore[O.D38mmormore]

Downwardgradient1/100ormore

700mmorless

NOTES:

• Installthedrainpipewithdownwardgradient(1/50to1/100)andsotherearenorisesor

trapsinthepipe.

Drain

pipe

Outlet

airow

Arrangethedrainpipe

lowerthanthisportion

GOOD

Trap

Rise

PROHIBITED

• Whenthepipeislong,installsupporters.

Supporter

1.5to2m

• Donotperformairbleeding.

Airbleeding

CAUTION

Makesurethedrainwaterisproperlydrained.

Topreventpeoplefromtouchingthepartsinsidetheunit,besuretoinstallgrilleson

theinletandoutletports.Thegrillesmustbedesignedinsuchawaythatcannotbe

removedwithouttools.

Settheappropriateexternalstaticpressurewithinthepermissiblerange.(Referto

“7.FUNCTIONSETTING”)

Ifanintakeductisinstalled,takecarenottodamagethetemperaturesensor(the

temperaturesensorisattachedtotheintakeportange).

CAUTION

BesuretoInstalltheairinletgrilleandairoutletgrilleforaircirculation.Thecorrect

temperaturecannotbedetected.



Unit

AirOutletGrille

(Locallypurchased)

AirInletGrille

(Locallypurchased)

(Room)

Duct

(Locallypurchased)

Whenconnectingtheduct,performduct-insulationappropriatefortheinstalling

environment.

Inappropriateinsulationworkmaycausecondensationonthesurfaceoftheinsulating

material,andmayleadtocondensationdripping.

3. 5. Fresh air intake

(Processing before use)

(1) Whentakinginfreshair,cutouttheslitofthecabinetontheleftsideoftheoutercase

withnippers.

Slit

Cabinet(ironplate)

CAUTION

Whenremovingthecabinet(ironplate),becarefulnottodamagetheindoorunit

internalpartsandsurroundingarea(outercase).

Whenprocessingthecabinet(ironplate),becarefulnottoinjureyourselfwithburrs,

etc.

(2) Installtheroundangetothefreshairintake.

Roundange(Locallypurchased)

(3) Connecttheducttotheroundange.

(4) Sealwithabandandvinyltape,etc.sothatairdoesnotleakfromtheconnection.

Duct

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4. PIPE INSTALLATION

WARNING

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2-wayor3-wayvalveopen.Thismaycauseabnormalpressureinthe

refrigerationcyclethatleadstobreakageandeveninjury.

Duringthepump-downoperation,makesurethatthecompressoristurnedoffbefore

youremovetherefrigerantpiping.

Donotremovetheconnectionpipewhilethecompressorisinoperationwith2-wayor

3-wayvalveopen.Thismaycauseabnormalpressureintherefrigerationcyclethat

leadstobreakageandeveninjury.

Wheninstallingandrelocatingtheairconditioner,donotmixgasesotherthanthe

speciedrefrigerant(R410A)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breakage,injury,etc.

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.

CAUTION

Bemorecarefulsothatforeignmatter(oil,water,etc.)doesnotenterthepiping

thanwithrefrigerantR410Amodels.Also,whenstoringthepiping,securelysealthe

openingsbypinching,taping,etc.

Whilebrazingthepipes,besuretoblowdrynitrogengasthroughthem.

4. 1. Pipe connection

4. 1. 1. Brazing

CAUTION

Ifairoranothertypeofrefrigerantenterstherefrigerationcycle,theinternalpressure

intherefrigerationcyclewillbecomeabnormallyhighandpreventtheunitfrom

exertingitsfullperformance.

Applynitrogengaswhilebrazingthepipes.Nitrogengaspressure:0.02MPa

(=pressurefeltsufcientlyonthebackofyourhand)

Cap

Pressureregulatingvalve

Nitrogengas

Brazingarea

Ifapipeisbrazedwithoutapplyingnitrogengas,itwillcreateanoxidationlm.This

candegradeperformanceordamagethepartsintheunit(suchasthecompressoror

valves).

Donotuseuxtobrazepipes.Iftheuxisthechlorinetype,itwillcausethepipes

tocorrode.Inaddition,iftheuxcontainsuoride,itwillaffecttherefrigerantpiping

systemduetodeteriorationofrefrigerantoil.

Forbrazingmaterial,usephosphorcopperthatdoesnotrequireux.

Connecting pipes

• Thegasandliquidpipesconnectionsmustbebrazed.

• Besuretobrazethembeforeperforminganywiringworkorinstallingthedrainpipe.



Pinchpipe

Gaspipe

Liquidpipe

Rubber

cap

WARNING

Besuretousewetcloth,etc.,toprotectthepiperubber,pipeheatinsulation,and

theheatinsulationofthesafetydrainpanasshownbelow.Becausethesepartsare

extremelyammable,theycancauseareiftheyarenotproperlyprotected.

Donotexposethethermistorinstalledintheheatexchangertotheame.

Failuretodosocouldresultintrouble.

Donotexposetheunit(controlbox,rearpanel,maintenancepanel,etc.)andtheinlet

grilletotheame.

Theexposureofthesepartstotheamewilladverselyaffecttheirappearanceand

functionsorcauseare.

Connection

pipes

Protectthese

areaswithwet

cloth,etc.

Liquidpipe

Completelycover

thepiperubberand

pipeheatinsulationwith

wetcloth,etc.,toprevent

themfromburning.

Gaspipe

CAUTION

Meltthebrazingltermetalonconnectingpartusingaburnerandremovethepinch

pipe.

Removethepinchpipeonlyafterprotectingitfromame.

Removetherubbercapandpinchpipeimmediatelybeforetheconnection.

4. 1. 2. Bending pipes

•Ifpipesareshapedbyhand,becarefulnottocollapsethem.

•Donotbendthepipesinananglemorethan90°.

•Whenpipesarerepeatedlybendorstretched,thematerialwillharden,makingitdifcult

tobendorstretchthemanymore.

•Donotbendorstretchthepipesmorethan3times.

CAUTION

Topreventbreakingofthepipe,avoidsharpbends.Bendthepipewitharadiusof

curvatureof150mmorover.

Ifthepipeisbentrepeatedlyatthesameplace,itwillbreak.

4. 2. Installing heat insulation

Installtheheatinsulationmaterialafterperformingarefrigerantleakcheck(seethe

installationmanualfortheoutdoorunitfordetails).

4. 2. 1. Coupler heat insulation

Nogaps

Indoorunitside

Cableties(large)

(Accessories)

Pipes

(Gasandliquidpipes)

Couplerheatinsulation

(Accessories)

Besuretooverlap

theinsulation.

CAUTION

Thereshouldbenogapsbetweentheinsulationandtheproduct.



CAUTION

Afterconnectingthepiping,checkthealljointsforgasleakagewithgasleakdetector.

Oncethepressurecheckinghasbeencompletedusingnitrogen,pleaserefertothe

outdoorunitinstallationmanualtocompletetheevacuationprocess.

Installheatinsulationaroundboththelarge(gas)andsmall(liquid)pipes.Failureto

dosomaycausewaterleaks.

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5. ELECTRICAL WIRING

WARNING

ElectricalworkmustbeperformedinaccordancewiththisManualbyaperson

certiedunderthenationalorregionalregulations.Besuretouseadedicatedcircuit

fortheunit.

Aninsufcientpowersupplycircuitorimproperlyperformedelectricalworkcancause

seriousaccidentssuchaselectricshockorre.

Beforestartingwork,checkthatpowerisnotbeingsuppliedtotheindoorunitand

outdoorunit.

Toavoidgettinganelectricshock,nevertouchtheelectricalcomponentssoonafter

thepowersupplyhasbeenturnedoff.Afterturningoffthepower,alwayswait

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

Usetheincludedconnectioncablesandpowercablesoronesspeciedbythe

manufacturer.Improperconnections,insufcientinsulation,orexceedingtheallowable

currentcancauseelectricshockorre.

Forwiring,usetheprescribedtypeofcables,connectthemsecurely,makingsure

thattherearenoexternalforcesofthecablesappliedtotheterminalconnections.

Improperlyconnectedorsecuredcablescancauseseriousaccidentssuchas

overheatingtheterminals,electricshock,orre.

Donotmodifythepowercables,useextensioncables,oruseanybranchesinthe

wiring.Improperconnections,insufcientinsulation,orexceedingtheallowable

currentcancauseelectricshockorre.

Matchtheterminalboardnumbersandconnectioncablecolorswiththoseofthe

outdoorunit.Erroneouswiringmaycauseburningoftheelectricparts.

Securelyconnecttheconnectioncablestotheterminalboard.Inaddition,securethe

cableswithwiringholders.Improperconnections,eitherinthewiringorattheendsof

thewiring,cancauseamalfunction,electricshock,orre.

Alwaysfastentheoutsidecoveringoftheconnectioncablewiththecableclamp.(If

theinsulatorischafed,electricleakagemayoccur.)

Securelyinstalltheelectricalboxcoverontheunit.Animproperlyinstalledelectrical

boxcovercancauseseriousaccidentssuchaselectricshockorrethroughexposure

todustorwater.

Installsleevesintoanyholesmadeinthewallsforwiring.Otherwise,ashortcircuit

couldresult.

Installagroundleakagebreaker.Inaddition,installthegroundleakagebreakerso

thattheentireACmainpowersupplyiscutoffatthesametime.Otherwise,electric

shockorrecouldresult.

Alwaysconnecttheearth(ground)cable.

Improperearthing(grounding)workcancauseelectricshocks.

Installtheremotecontrolcablessoasnottobetoucheddirectlywithyourhand.

Performwiringworkinaccordancewithstandardssothattheairconditionercanbe

operatedsafelyandpositively.

Connecttheconnectioncablermlytotheterminalboard.Imperfectinstallationmay

causeare.

CAUTION

Groundtheunit.

Donotconnecttheearth(ground)cabletoagaspipe,waterpipe,lightningrod,ora

telephoneearth(ground)cable.

Improperearthing(grounding)maycauseelectricshocks.

Donotconnectpowersupplycablestothetransmissionorremotecontrolterminals,

asthiswilldamagetheproduct.

Neverbundlethepowersupplycableandtransmissioncabletogether.Bundlingthese

cablestogetherwillcausemissoperation.

WhenhandlingPCB,staticelectricitychargedinthebodymaycausemalfunctionof

thePCB.Followthecautionsbelow:

• Establishagroundfortheindoorandoutdoorunitsandperipheraldevices.

• Cutpower(breaker)off.

• Touchmetalpartoftheindoorandoutdoorunitsformorethan10secondsto

dischargestaticelectricitychargedinthebody.

• DonottouchterminalsofpartsandpatternsimplementedonPCB.

5. 1. Wiring method

5. 1. 1. Connection diagrams

■

Connectioncable(tooutdoorunit)

•Powerforindoorandoutdoorunitissuppliedseparately.

Earth(ground)line

(Tooutdoorunit)

Controlline

Earth(ground)line

(Topowersupply)

Powerline

■

Wiredremotecontrollercable

Red

White

2-wire type

3-wire type

Red

White

Black

*Earth(Ground)theremotecontrollerifithasaearth(ground)wire.

5. 1. 2. Connection cable preparation



Earth(ground)wire

Powersupplycable

orconnectioncable

Keeptheearth(ground)wirelongerthantheotherwires.

•Usea4-corewirecable.

30mm

70mmormore

How to connect wiring to the terminals.

(1) Useringterminalswithinsulatingsleevesasshowninthegurebelowtoconnectto

theterminalblock.

(2) Securelycrimptheringterminalstothewiresusinganappropriatetoolsothatthe

wiresdonotcomeloose.



Strip10mm

Ring

terminal

Sleeve

(3) Usethespeciedwires,connectthemsecurely,andfastenthemsothatthereisno

stressplacedontheterminals.

(4) Useanappropriatescrewdrivertotightentheterminalscrews.

Donotuseascrewdriverthatistoosmall,otherwise,thescrewheadsmaybe

damagedandpreventthescrewsfrombeingproperlytightened.

(5) Donottightentheterminalscrewstoomuch,otherwise,thescrewsmaybreak.

(6) Seethetablebelowfortheterminalscrewtighteningtorques.

WARNING

Useringterminalsandtightentheterminalscrewstothespeciedtorques,otherwise,

abnormaloverheatingmaybeproducedandpossiblycauseseriousdamageinside

theunit.

Tightening torque [N·m (kgf·cm)]

M4screw 1.2to1.8(12to18)

M5screw 2.0to3.0(20to30)

Screwwith

specialwasher

Ring

terminal

Terminalblocks

Wire

Screwwith

special

washer

Ring

terminal

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5. 1. 3. Connection wiring

CAUTION

Becarefulnottomistakethepowersupplycableandconnectionwireswhen

installing.

Installsothatthewiresfortheremotecontrollerwillnotcomeincontactwithother

connectionwires.

(1) Removethecontrolboxcoverandinstalleachconnectionwire.

Controlboxcover

Loosenthescrews.(5places)

Controlline

Connection

cable

Power

supplycable

Powerline

Outdoor

unit

Power

supply

Earth(ground)Earth(ground)

NOTE: Besuretoconnectboththepowersupplyandconnectioncablesaccordingly.

 Ifbothcablesarenotconnected,theairconditionerwillnotfunctionproperly.

(2) Installthewiringfortheremotecontroller.

• SettheDIPswitchonthePrintedcircuitboardtothepreferredwiretype.

 [2WIREor3WIRE(factorysetting)]

DIPswitch

Printcircuitboard

(PCB)

• Connecttheremotecontrollercable.

Remotecontroller

2-wire type

White

Red

Remote

controller

cable

3-wire type

Black

White

Red

Remote

controller

cable

*Earth(Ground)theremotecontrollerifithasaearth(ground)wire.

NOTES:BesuretochangetheDIPSWtothecorrespondingremotecontroller.

 Whena2-wireremotecontrollerisconnectedtoa“3WIRE”setting,powerwill

notbesupplied.

 Whena3-wireremotecontrollerisconnectedtoa“2WIRE”setting,acommuni-

cationerrorwillbedetected.

(3) Afterwiringiscomplete,securetheremotecontrollercable,connectioncable,and

powersupplycablewiththecableclamps.

Connectioncable

(tooutdoorunit)

Powersupply

cable

Powerissupplieddirectlytotheindoorunit.

Remotecontroller

cable

Cabletie(medium)

(Accessories)

Controlbox

(4) Sealthecableoutletorothergapswithputtytopreventdewcondensationorinsect

fromenteringtheelectriccontrolbox.

(5) Replacethecontrolboxcover.

CAUTION

Donotbundletheremotecontrollercable,orwiretheremotecontrollercablein

parallel,withtheindoorunitconnectionwire(totheoutdoorunit)andthepowersupply

cable.Itmaycauseerroneousoperation.

6. REMOTE CONTROLLER SETTING

Toinstallandsettheremotecontroller,refertotheinstallationmanualoftheremote

controller(wiredtype).

7. FUNCTION SETTING

Tochangethefunctionsettings,refertotheproceduresdescribedintheinstallation

manualoftheremotecontroller(wiredtype).

Thefunctionsettingsareasfollows.

7. 1. Function details

Filter sign

Selectappropriateintervalsfordisplayingtheltersignontheindoorunitaccordingtothe

estimatedamountofdustintheairoftheroom.

Iftheindicationisnotrequired,select“Noindication”(03).

(♦...Factorysetting)

Function

Number

Setting

Value

Setting Description

00 Standard(2500hours)

01 Longinterval(4400hours)

02 Shortinterval(1250hours)

03 Noindication ♦

Room temperature control for indoor unit sensor

Dependingontheinstalledenvironment,correctionoftheroomtemperaturesensormay

berequired.

Selecttheappropriatecontrolsettingaccordingtotheinstalledenvironment.

The temperature correction values show the difference from the Standard setting “00”

(manufacturer’srecommendedvalue).

(♦...Factorysetting)

Function Number

Setting

Value

Setting Description

(Forcooling)

(Forheating)

00 Standardsetting ♦

01 Nocorrection0.0°C(0°F)

02 -0.5°C(-1°F)

More

Cooling

Less

Heating

03 -1.0°C(-2°F)

04 -1.5°C(-3°F)

05 -2.0°C(-4°F)

06 -2.5°C(-5°F)

07 -3.0°C(-6°F)

08 -3.5°C(-7°F)

09 -4.0°C(-8°F)

10 +0.5°C(+1°F)

Less

Cooling

More

Heating

11 +1.0°C(+2°F)

12 +1.5°C(+3°F)

13 +2.0°C(+4°F)

14 +2.5°C(+5°F)

15 +3.0°C(+6°F)

16 +3.5°C(+7°F)

17 +4.0°C(+8°F)

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Room temperature control for wired remote controller sensor

Dependingontheinstalledenvironment,correctionofthewireremotetemperaturesensor

mayberequired.

Selecttheappropriatecontrolsettingaccordingtotheinstalledenvironment.

Tochangethissetting,setFunction42toBoth“01”.

EnsurethattheThermoSensoriconisdisplayedontheremotecontrollerscreen.

(♦...Factorysetting)

Function number

Setting

value

Setting description

35

(Forcooling)

36

(Forheating)

00 Nocorrection ♦

01 Nocorrection0.0°C(0°F)

02 -0.5°C(-1°F)

More

Cooling

Less

Heating

03 -1.0°C(-2°F)

04 -1.5°C(-3°F)

05 -2.0°C(-4°F)

06 -2.5°C(-5°F)

07 -3.0°C(-6°F)

08 -3.5°C(-7°F)

09 -4.0°C(-8°F)

10 +0.5°C(+1°F)

Less

Cooling

More

Heating

11 +1.0°C(+2°F)

12 +1.5°C(+3°F)

13 +2.0°C(+4°F)

14 +2.5°C(+5°F)

15 +3.0°C(+6°F)

16 +3.5°C(+7°F)

17 +4.0°C(+8°F)

Auto restart

Enableordisableautomaticrestartafterapowerinterruption.

(♦...Factorysetting)

Function

Number

Setting

Value

Setting Description

00 Enable ♦

01 Disable

*Autorestart isanemergencyfunctionsuchasforpoweroutageetc.Donotattemptto

usethisfunctioninnormaloperation.Besuretooperatetheunitbyremotecontrolleror

externaldevice.

Room temperature sensor switching

(Onlyforwiredremotecontroller)

Whenusingthewiredremotecontrollertemperaturesensor,changethesettingto“Both”

(01).

(♦...Factorysetting)

Function

Number

Setting

Value

Setting Description

00 Indoorunit ♦

01 Both

00:Sensorontheindoorunitisactive.

01:Sensorsonbothindoorunitandwiredremotecontrollerareactive.

*

Remotecontrollersensormustbeturnedonbyusingtheremotecontroller

Cold air prevention

*Thissettingistodisablethecoldairpreventionfunctionduringheatingoperation.When

disabled,thefansettingwillalwaysfollowthesettingontheremotecontroller.(Excluding

defrostmode).

(♦...Factorysetting)

Function

Number

Setting

Value

Setting Description

00 Enable ♦

01 Disable

External input control

“Operation/Stop”modeor“Forcedstop”modecanbeselected.

(♦...Factorysetting)

Function

Number

Setting

Value

Setting Description

00 Operation/Stopmode1

♦

01 (Settingprohibited)

02 Forcedstopmode

03 Operation/Stopmode2

Room temperature sensor switching (Aux.)

Tousethetemperaturesensoronthewiredremotecontrolleronly,changethesettingto

“Wiredremotecontroller”(01).Thisfunctionwillonlyworkifthefunctionsetting42isset

at“Both”(01)

(♦...Factorysetting)

Function

Number

Setting

Value

Setting Description

00 Both

01 Wiredremotecontroller ♦

Indoor unit fan control for energy saving for cooling

Enables or disables the power-saving function by controlling theindoor unit fanrotation

whentheoutdoorunitisstoppedduringcoolingoperation.

(♦...Factorysetting)

Function

Number

Setting

Value

Setting description

00 Disable

01 Enable

02 Remotecontroller ♦

00:Whentheoutdoorunitisstopped,theindoorunitfanoperatescontinuouslyfollowing

thesettingontheremotecontroller.

01:Whentheoutdoorunitisstopped,theindoorunitfanoperatesintermittentlyatavery

lowspeed.

02:Enableordisablethisfunctionbyremotecontrollersetting.

*WhenusingawiredremotecontrollerwithoutIndoorunitfancontrolforenergysavingfor

coolingfunction,orwhenconnectingasinglesplitconverter,thesettingcannotbemade

byusingtheremotecontroller.Setto“00”or“01”.

 Toconrmiftheremotecontrollerhasthisfunction,refertotheoperationmanualofeach

remotecontroller.

Switching functions for external output terminal

Functionsoftheexternaloutputterminalcanbeswitched.

(♦...Factorysetting)

Function Number

Setting

Value

Setting Description

00 Operationstatus ♦

01to08 (Settingprohibited)

09 Errorstatus

10 Freshaircontrol

11 Auxiliaryheater

Setting record

•

 Recordanychangestothesettingsinthefollowingtable.

Function setting

Setting Value

Filtersign

Staticpressure

Roomtemperaturecontrolforindoorunitsensor

cooling

heating

Roomtemperaturecontrolforwiredremote

controllersensor

cooling

heating

Autorestart

Roomtemperaturesensorswitching

Coldairprevention

Externalinputcontrol

Roomtemperaturesensorswitching(Aux.)

Indoorunitfancontrolforenergysavingforcooling

Switchingfunctionsforexternaloutputterminal

AftercompletingtheFunctionSetting,besuretoturnoffthepowerandturnitonagain.

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7. 2. Static pressure

Thestaticpressurecanbesetbythefollowing2methods.Chooseaccordingly.

a. Manual setting (Function setting)

Selecttheappropriatestaticpressureaccordingtotheinstallationconditions.

(♦...Factorysetting)

Function

Number

Setting

Value

Setting Description

06 60Pa

07 70Pa

08 80Pa

09 90Pa

10 100Pa

11 110Pa

12 120Pa

13 130Pa

14 140Pa

15 150Pa

16 160Pa

17 170Pa

31 Standard60Pa ♦

32 Automaticairowadjustment

 Record the setting value of Function 26 in the Setting record table in “7.1. Function

details”.

b. Automatic airow adjustment

CAUTION

Thisfunctioncannotbeusedwhenthereisaboosterfanbetweentheducts.

Besurethatthestaticpressureiswithintheallowedrange.Incorrectsettingmay

causeincorrectadjustmentandmayresultininsufcientairoworwaterleakage.

Whentheexternalstaticpressureischangeableintheinstallationbyuseofautomatic

changeabledampers,etc.,setsothattheexternalstaticpressureisthelowest.

NOTES:

Besuretoconductthissettingbeforeanyotheroperation.Ifthemotoriswarmortheheat

exchangeriswet,falsedetectionmayleadtoincorrectadjustments.

Checkiftheelectricalwiringsandductinstallationsarecomplete.

Ifthereisadamperinstalledinthesystem,makesurethedamperisopen.

Checkiftheairlter(optional)isattached.

Ifthereareseveralinlet,outletports,makesuretheairowratesofeachportmatchthe

designedairowratebyadjustingthethrottles.

Automaticairowadjustmentispossiblebythefollowingprocedures.

1) ChangethesettingofFunction26to“Automaticairowadjustment”(32).

2) RuntheairconditioneronFanmode(High).

*Forinstructionsonhowtooperatetheairconditioner,refertotheoperationmanual

oftheremotecontroller.

 DuringAutomaticairowadjustment,themodewillbexedatFanmode(High).

 Whenthisfunctionisactive,donotoperatetheOutdoorunit.

3) Theairconditionerwillrunforabout1to8min.thenstopautomatically.

*Donotchangethethrottlesoftheinletandoutletportsduringoperation.

 WhenusedinaGroupcontrolsystem,thesettingwilltakeabout10min.

4) Turntheairconditioneroffandonagain.

5) CheckthesettingvalueofFunction26andrecordtheobtainedsettingvalueinthe

followingtable.    

 *Ifthesettingvaluehasnotchanged,repeattheprocedurefromstep1.

 

Function Number Setting value

CAUTION

Ifthedetectedsettingvalueisnotwithintherangeofstaticpressure,pleasecheck

andre-arrangetheinstallation,thenrepeattheprocedurefromstep1.Incorrect

settingmayresultininsufcientairoworwaterleakage.

WhentheductoroutletinstallationsarechangedaftertheAutomaticairow

adjustmentiscompleted,repeattheprocedurefromstep1.

8. GROUP CONTROL

CAUTION

Besuretoturnofftheelectricalbreakerbeforemakingsettings.

WhensettingDIPswitches,donottouchanyotherpartsonthecircuitboarddirectly

withyourbarehands.

8. 1. Group control system

CAUTION

Groupcontrolisonlypossiblebetweenunitswithremotecontrollersofthesametype.

Toconrmthetypeofremotecontroller,seethebackoftheremotecontrolleror

“2.3.Accessories”.

Anumberofindoorunitscanbeoperatedatthesametimeusingasingleremotecontroller.

(1) Connectupto16indoorunitsinasystem.(indoorunittoremotecontroller)

B C D E

I.U. I.U. I.U. I.U.

Remote

controller

A,B,C,D,E:Remotecontrollercable.(Referto“2.6.Electricalrequirement”)

A+B+C+D+E≤500m.

Exampleofwiringmethod(3-wiretype)

1 2 3 1 2 3 1 2 3 1 2 3

1 2 3

Indoorunit1 Indoorunit2 Indoorunit3 Indoorunit4

Remote

controllercable

Remote

controllercable

Remotecontroller

RWB

(2) SettheR.C.address(DIPswitchsetting)

 SettheR.C.addressofeachindoorunitusingtheDIPswitchontheindoorunit

circuitboard.

(a)2-wiretype

DIPswitch(RCADSW)...Factorysetting“00”

Sincetheremotecontrolleraddresssettingsareautomaticallycongured,youdonot

needtocongurethem.

Ifconguringmanually,itisnecessarytocongureboththeindoorunitandtheremote

controller.Fordetails,pleaserefertotheremotecontrollerinstallationmanual.

(b)3-wiretype

DIPswitch(RCADSW)...Factorysetting“00”

 Whenconnectingmultipleindoorunitsto1standardwiredremotecontroller,setthe

addressatRCADSWinsequencefrom“00”.

Setting Setting range Switch 100

Remotecontroller

address

00to15

Setting

example00

1 2 3 4

RCAD

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

Example



If4indoorunitsareconnected.

RC AD SW

Indoorunit1

Remote

controller

Indoorunit2 Indoorunit3 Indoorunit4

Set the R.C. address in accordance with the table below.

Indoor unit

R.C. address

DIP SWITCH No.

1 2 3 4

1 00 OFF OFF OFF OFF

2 01 ON OFF OFF OFF

3 02 OFF ON OFF OFF

4 03 ON ON OFF OFF

5 04 OFF OFF ON OFF

6 05 ON OFF ON OFF

7 06 OFF ON ON OFF

8 07 ON ON ON OFF

9 08 OFF OFF OFF ON

10 09 ON OFF OFF ON

11 10 OFF ON OFF ON

12 11 ON ON OFF ON

13 12 OFF OFF ON ON

14 13 ON OFF ON ON

15 14 OFF ON ON ON

16 15 ON ON ON ON

NOTES:

BesuretosetconsecutiveR.C.address.

Theindoorunitscannotbeoperatedifanumberisskipped.

8. 2. Multiple remote control

Upto2remotecontrollerscanbeusedtooperateoneindoorunit

CAUTION

Multipleinstallationmethoddescribedaboveisprohibitedtocombine3-wiretypewith

2-wireType.

I.U.

A B

I.U.

Primary Primary Secondary

A,B:Remotecontrollercable.(Referto“2.6.Electricalrequirement”)

A≤500m,A+B≤500m

9. OPTIONAL PARTS

WARNING

Regulationofcablediffersfromeachlocality,referinaccordancewithlocalrules.

Y1 Y2 Y3 1 2Y1 Y2 Y3 1 2

Terminal

(Externalin)

CN71

(Drainpump)

CN9

(Floatswitch)

CN47

(Externalout)

CN65

(Externalcom.1)

CN8

(Remotesensor)

CN48

(IRreceiver)

9. 1. Optional parts

Thisairconditionercanbeconnectedwiththefollowingoptionalkits.

Fordetailsonhowtoinstalloptionalparts,refertotheinstallationmanualincludedineach

item.

Optiontype ConnectorNo.

UTY-LBTYM(IRReceiver) CN48

UTY-XSZX(Remotesensor) CN8

UTY-XWZXZG(Externalconnectkit) CN47

UTY-XCSX(ExternalinputandoutputPCB)

CN65

UTZ-PX1NAB

(Drainpump) CN71

(Floatswitch) CN9

:

externaloutputterminalsetting,refertoFunctionNo.60in“7.FUNCTIONSETTING”.

:VarioussettingsareavailablebyusingtheoptionalExternalinputandoutputPCB.

:Otheroptions(convertersetc.)maybeconnectable.Pleaserefertothetechnicaldata

fordetails.

 NOTES:OptionsconnectingtoCN65cannotbeusedatthesametime.

9. 2. External input and output

9. 2. 1. External input

• IndoorunitfunctionssuchasOperation/StoporForcedstopcanbedonebyusing

indoorunitterminals.

• “Operation/Stop”modeor“Forcedstop”modecanbeselectedwithfunctionsettingof

indoorunit.

•

Atwistedpaircable(22AWG)shouldbeused.Maximumlengthofcableis150m(492ft.).

• Useanexternalinputandoutputcablewithappropriateexternaldimension,depending

onthenumberofcablestobeinstalled.

• Thewireconnectionshouldbeseparatefromthepowercableline.

Connecteddevice

Terminal

● Dry contact terminal

Whenapowersupplyisunnecessaryattheinputdeviceyouwanttoconnect,usetheDry

contactterminal.

Terminal

(Externalin)

Connecteddevice

*1:Theswitchcanbeusedonthefollowingcondition:DC12Vto24V,1mAto15mA.

Operation behavior

● Input signal type

Edge

OFF

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● When function setting is “Operation/Stop” mode 1.

Input signal Command

OFF→ON Operation

ON→OFF Stop

● When function setting is “Forced stop” mode.

Input signal Command

OFF→ON Forcedstop

ON→OFF Normal

* Whentheforcedstopistriggered,indoorunitstopsandOperation/Stopoperationbya

remotecontrollerisrestricted.

● When function setting is “Operation/Stop” mode 2.

Input signal Command

OFF→ON Operation

ON→OFF Stop(R.C.disabled)

9. 2. 2. External output

• Atwistedpaircable(22AWG)shouldbeused.Maximumlengthofcableis25m(82ft.).

• Useanexternalinputandoutputcablewithappropriateexternaldimension,depending

onthenumberofcablestobeinstalled.

• Outputvoltage:HiDC12V±2V,Lo0V.

• Permissiblecurrent:50mA

Output select

● When interlocking with external device

CN47

PCB

Connected

device

Relay(locallypurchased)

● When displaying “Operation/Stop”

CN47

PCB

Connecteddevice

Resistor

LED

Operation behavior

*Iffunctionsetting“60”issetto“00”

Function setting

Status Output voltage

Stop 0V

Operation DC12V

Normal 0V

Error DC12V

Indoorunitfanstop 0V

Indoorunitfanoperation DC12V

ExternalheaterOFF 0V

ExternalheaterON DC12V

9. 2. 3. Connection methods

Wire modication

• Removeinsulationfromwireattachedtowirekitconnector.

• Removeinsulationfromlocallypurchasedcable.Usecrimptypeinsulatedbutt

connectortojoineldcableandwirekitwire.

• Connectthewirewithconnectingwirewithsolder.

IMPORTANT:Besuretoinsulatetheconnectionbetweenthewires.

Locallypurchased

Optionparts

Externaloutputwire

Solderandinsulatetheconnectedparts.

•Connectingwirestotheterminals.

Useringterminalswithinsulatingsleevestoconnecttotheterminalblock.

•Connectionterminalsandwiringarrangement

Infollowinggure,allthepossibleconnectionsaredonefordescription.

Inactualinstallation,connectionswilldifferaccordingtoeachinstallationrequirements.

9. 3. Remote sensor

Remote sensor

•Removetheexistingconnectorandreplaceitwiththeremotesensorconnector(ensure

thatthecorrectconnectorisused).

•Theoriginalconnectorshouldbeinsulatedtoensurethatitdoesnotcomeintocontact

withotherelectricalcircuitry.

Settingforroomtemperaturecorrection

Whenaremotesensorisconnected,setthefunctionsettingofindoorunitasindicated

below.

•SetFunctionNumber“30”(Roomtemperaturecontrolforcooling)to“00”

•SetFunctionNumber“31”(Roomtemperaturecontrolforheating)to“01”

9. 4. Installation details

Wheninstallingoptionalpartsorlocallyprocureddevices,pleaseconnectthewiringas

shownintheinstallationnotesprovidedwiththismanual.

9. 5. Fan delay setting

Thissettingcanbeusedwhentheauxiliaryheaterismounted.

Whentheoperationisstoppedwhentheindoorunitisoperatingwithanauxiliaryheater,

theoperationcontinues1minutes.

ChangethefollowingsettingsbyusingtheDIPswitch.

SW101

DIP switch 101

DIP SW state

Details

OFF

Cannotbeused

(Donotchange)

3 Enable Disable Fandelaysetting

9. 6. Wiring connection

Cable

IRreceiverwire

Drainpumpwire

Floatswitchwire

[A]

Externalconnect

kitwire

Remotesensorwire

Externalin/outPCB

(option)

MainPCB

Externalin/outPCB

cableandEMIcore

(accessoryforoption)

EMI

core

[A]InstallspacersforExternalin/outPCB.(4places,accessoriesforoption)

NOTES:

Inthegure,allpossibleconnectionsareshownfordescription.

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10. CHECK LIST

Payspecialattentiontothecheckitemsbelowwheninstallingtheindoorunit(s).After

installationiscomplete,besuretocheckthefollowingcheckitemsagain.

Check items Check box

Hastheindoorunitbeeninstalledcorrectly?

Hastherebeenacheckforgasleaks(refrigerantpipes)?

Hasheatinsulationworkbeencompleted?

Doeswaterdraineasilyfromtheindoorunits?

Isthevoltageofthepowersourcethesameasthatindicatedonthelabel

ontheindoorunit?

Arethewiresandpipesallconnectedcompletely?

Istheindoorunitgrounded?

Istheconnectioncablethespeciedthickness?

Aretheinletsandoutletsfreeofanyobstacles?

Afterinstallationiscompleted,hastheproperoperationandhandling

beenexplainedtotheuser?

Operatetheunitaccordingtotheoperationmanualprovided,andcheck

thatitisoperatingnormally.

NOTES: Check for drainage

Pour about 1 liter of water or from the airflow outlet to the dew tray. Check for any

abnormalities such as strange noises. For installations with drain pump, check whether

thedrainpumpfunctionsnormally.

CAUTION

Makesurethedrainwaterisproperlydrained.

11. TEST RUN

Forhowtocarryoutthetestrun,refertotheinstallationmanualoftheremotecontroller.

Checkthefollowingitems:

(1) Isoperationofeachbuttonontheremotecontrollernormal?

(2) Donotairowdirectionlouversoperatenormally?

(3) Isthedrainnormal?

(4) Isthereanyerrornoiseandvibrationduringoperation?

• Donotoperatetheairconditionerontestrunforalongtime.

12. CUSTOMER GUIDANCE

Explainthefollowingtothecustomerinaccordancewiththeoperationmanual:

(1) Startingandstoppingmethod,operationswitching,temperatureadjustment,timer,air

owswitching,andotherremotecontrolleroperations.

(2) Cleaningandmaintenanceoftheproduct,andotheritemssuchasairltersandair

louversifapplicable.

(3) Givetheoperatingandinstallationmanualstothecustomer.

(4) Iftheindoorunitcustomcodeischanged,andtheinstallationincludesawireless

remotecontroller,informthecustomerthechangedcode.(Onsomewirelessremote

controllers,thecustomcodemayreturntoAwhenbatteriesarereplaced.)

13. ERROR CODES

Ifyouuseawiredtyperemotecontroller,errorcodeswillappearontheremotecontroller

display.Ifyouuseawirelessremotecontroller,thelampsontheIRreceiverunitwilloutput

errorcodesbywayofblinkingpatterns.Seethelampblinkingpatternsanderrorcodesin

thetablebelow.Anerrordisplayisdisplayedonlyduringoperation.

Formoredetails,refertotheinstallationmanualoftheremotecontroller.

Theerrorcodetablecontainserrorsirrelevanttothisproductaswell.

Error display

Wired

remote

controller

Error code

Description

OPERATION

lamp (green)

TIMER

lamp

(orange)

ECONOMY

lamp

(green)



(1)



(1)

Serialcommunicationerror



(1)



(2)

Wiredremotecontroller

communicationerror



(1)



(5)

Checkrununnished

Automaticairowadjustmenterror



(1)



(6)

PeripheralunittransmissionPCB

connectionerror



(1)



(8)

Externalcommunicationerror



(2)



(1)

UnitnumberorRefrigerantcircuit

addresssettingerror

[Simultaneousmulti-splittype]



(2)



(2)

Indoorunitcapacityerror



(2)



(3)

Combinationerror



(2)



(4)

•Connectionunitnumber

error(indoorsecondaryunit)

[Simultaneousmulti-splittype]

•Connectionunitnumbererror

(indoorunitorbranchunit)

[Flexiblemulti-splittype]



(2)



(6)

Indoorunitaddresssettingerror



(2)



(7)

Primaryunit,secondaryunitsetup

error[Simultaneousmulti-split

type]



(2)



(9)

Connectionunitnumbererrorin

wiredremotecontrollersystem



(3)



(1)

Powersupplyinterruptionerror



(3)



(2)

IndoorunitPCBmodel

informationerror



(3)



(3)

Indoorunitmotorelectricity

consumptiondetectionerror



(3)



(5)

Manualautoswitcherror



(3)



(9)

Indoorunitpowersupplyerrorfor

fanmotor



(3)



(10)

Indoorunitcommunicationcircuit

(wiredremotecontroller)error



(4)



(1)

Roomtemp.sensorerror



(4)



(2)

Indoorunitheatex.middletemp.

sensorerror



(4)



(4)

Humansensorerror



(5)



(1)

Indoorunitfanmotorerror



(5)



(3)

Drainpumperror



(5)



(7)

Dampererror



(5)



(15)

Indooruniterror



(6)



(1)

Outdoorunitreverse/missing

phaseandwiringerror



(6)



(2)

OutdoorunitmainPCB

modelinformationerroror

communicationerror



(6)



(3)

Invertererror



(6)



(4)

Activeltererror,PFCcircuiterror

9381386260_IM.indd 14 25/09/2020 10:41:56

En-15

Error display

Wired

remote

controller

Error code

Description

OPERATION

lamp (green)

TIMER

lamp

(orange)

ECONOMY

lamp

(green)



(6)



(5)

TripterminalLerror



(6)



(8)

Outdoorunitrushcurrentlimiting

resistertemp.riseerror



(6)



(10)

DisplayPCBmicrocomputers

communicationerror



(7)



(1)

Dischargetemp.sensorerror



(7)



(2)

Compressortemp.sensorerror



(7)



(3)

OutdoorunitHeatEx.liquidtemp.

sensorerror



(7)



(4)

Outdoortemp.sensorerror



(7)



(5)

SuctionGastemp.sensorerror



(7)



(6)

•2-wayvalvetemp.sensorerror

•3-wayvalvetemp.sensorerror



(7)



(7)

Heatsinktemp.sensorerror



(8)



(2)

•Sub-coolHeatEx.gasinlet

temp.sensorerror

•Sub-coolHeatEx.gasoutlet

temp.sensorerror



(8)



(3)

Liquidpipetemp.sensorerror



(8)



(4)

Currentsensorerror



(8)



(6)

•Dischargepressuresensorerror

•Suctionpressuresensorerror

•Highpressureswitcherror



(9)



(4)

Tripdetection



(9)



(5)

Compressorrotorposition

detectionerror(permanentstop)



(9)



(7)

Outdoorunitfanmotor1error



(9)



(8)

Outdoorunitfanmotor2error



(9)



(9)

4-wayvalveerror



(9)



(10)

Coil(expansionvalve)error



(10)



(1)

Dischargetemp.error



(10)



(3)

Compressortemp.error



(10)



(4)

Highpressureerror



(10)



(5)

Lowpressureerror



(13)



(2)

Branchboxeserror

[Flexiblemulti-splittype]

Displaymode



:0.5sON/0.5sOFF



:0.1sON/0.1sOFF

() :Numberofashing

9381386260_IM.indd 15 25/09/2020 10:41:59

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