Fujitsu ARU12RGLX Installation guide

ARU12RGLX
Fujitsu
Brand
Fujitsu
Model
ARU12RGLX
Type
Installation guide

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NOTES: 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.
•InstallationmustbeperformedinaccordancewiththerequirementofNEC(NationalElectri-
calCode)andCEC(CanadianElectricalCode)byauthorizedpersonnelonly.
•Allproductsaremanufactured tometricunitsandtolerances.UnitedStatescustomary
unitsareprovidedforreferenceonly.Incaseswhereexactdimensionsandtolerancesare
required,alwaysrefertometricunits.
1. SAFETY PRECAUTIONS
1. 1. IMPORTANT! Please read before starting
This air conditioning system meets strict safety and operating standards.
Astheinstallerorserviceperson,itisanimportantpartofyourjobtoinstallorservicethe
system so it operates safely and efficiently.
Forsafeinstallationandtrouble-freeoperation,youmust:
•Carefullyreadthisinstructionbookletbeforebeginning.
•Followeachinstallationorrepairstepexactlyasshown.
•Observealllocal,state,andnationalelectricalcodes.
•Paycloseattentiontoalldanger,warning,andcautionnoticesgiveninthismanual.
WARNING:
Thissymbolreferstoahazardorunsafepracticewhichcanresultin
severepersonalinjuryordeath.
CAUTION:
Thissymbolreferstoahazardorunsafepracticewhichcanresultin
personalinjuryandthepotentialforproductorpropertydamage.
•Hazardalertingsymbols
:Electrical :Safety/alert
If Necessary, Get Help
These instructions are all you need for most installation sites and maintenance conditions.
Ifyourequirehelpforaspecialproblem,contactoursales/serviceoutletoryourcertified
dealer for additional instructions.
In Case of Improper Installation
The manufacturer shall in no way be responsible for improper installation or maintenance
service,includingfailuretofollowtheinstructionsinthisdocument.
1. 2. Special precautions
When Wiring
ELECTRICAL SHOCK CAN CAUSE SEVERE PERSONAL INJURY OR DEATH. ONLY A
QUALIFIED, EXPERIENCED ELECTRICIAN SHOULD ATTEMPT TO WIRE THIS SYSTEM.
•Donotsupplypowertotheunituntilallwiringandtubingarecompletedorreconnected
andchecked.
•Highlydangerouselectricalvoltagesareusedinthissystem.Carefullyrefertothewir-
ingdiagramandtheseinstructionswhenwiring.Improperconnectionsandinadequate
earthing(grounding)cancauseaccidentalinjuryordeath.
•Earth(Ground)theunitfollowinglocalelectricalcodes.
•Connectallwiringtightly.Loosewiringmaycauseoverheatingatconnectionpointsand
apossiblerehazard.
When Transporting
Becareful when picking up andmoving the indoor and outdoorunits. Get a partner to
help,andbendyourkneeswhenliftingtoreducestrainonyourback.Sharpedgesorthin
aluminumnsontheairconditionercancutyourngers.
When Installing...
...In a Ceiling or Wall
Makesuretheceiling/wallisstrongenoughtoholdtheunit’sweight.Itmaybenecessary
to construct a strong wood or metal frame to provide added support.
...In a Room
Properly insulate any tubing run inside a room to prevent “sweating” that can cause
drippingandwaterdamagetowallsandoors.
...In an Area with High Winds
Securelyanchortheoutdoorunitdownwithboltsandametalframe.
Provideasuitableairbafe.
...In a Snowy Area (for Heat Pump-type Systems)
Installtheoutdoorunitonaraisedplatformthatishigherthandriftingsnow.
AIRCONDITIONER
INDOORUNIT(Ducttype)
INSTALLATION MANUAL
PARTNo.9381386246-03
Forauthorizedservicepersonnelonly.
Contents
1. SAFETYPRECAUTIONS ……………………………………………… 1
1.1. IMPORTANT!Pleasereadbeforestarting ……………………… 1
1.2. Special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. Piperequirement …………………………………………………… 3
2.5. Electricalrequirement ……………………………………………… 3
2.6. Optional parts ……………………………………………………… 3
2.7. Selectingthepipematerial ………………………………………… 3
3. INSTALLATIONWORK ………………………………………………… 4
3.1. Selectinganinstallationlocation ………………………………… 4
3.2. Installationdimension ……………………………………………… 4
3.3. Installingtheunit …………………………………………………… 4
3.4. Intakeductconnection ……………………………………………5
3.5. Draininstallation …………………………………………………… 6
3.6. Pipe installation …………………………………………………… 7
3.7. Freshairintake ……………………………………………………… 8
3.8. Electricalwiring …………………………………………………… 8
3.9. Remotecontrollerinstallation ……………………………………… 9
4. OPTIONALINSTALLATIONWORK ………………………………… 10
4.1. Optionalkitinstallation ………………………………………… 10
4.2. Externalinputandoutput ……………………………………… 10
4.3. Remotesensor ………………………………………………… 11
5. REMOTECONTROLINSTALLATION ……………………………… 11
5.1. Groupcontrol …………………………………………………… 11
5.2. Multiple remote control ………………………………………… 11
5.3. DIPswitch101setting …………………………………………… 11
6. FUNCTIONSETTING ………………………………………………… 12
6.1. Function details ………………………………………………… 12
6.2. Staticpressure …………………………………………………… 13
7. CHECKLIST …………………………………………………………… 13
8. TESTRUN ……………………………………………………………… 14
8.1. Checkitems ……………………………………………………… 14
8.2. Operation method ……………………………………………… 14
9. FINISHING ……………………………………………………………… 14
10.CUSTOMERGUIDANCE ……………………………………………… 14
11. ERRORCODES ……………………………………………………… 14
9381386246-03_IM.indb 1 7/25/2019 09:57:02
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When Connecting Refrigerant Tubing
•Keepalltubingrunsasshortaspossible.
•Usethearemethodforconnectingtubing.
•Applyrefrigerantlubricanttothematchingsurfacesoftheareanduniontubesbefore
connectingthem,thentightenthenutwithatorquewrenchforaleak-freeconnection.
•Checkcarefullyforleaksbeforeopeningtherefrigerantvalves.
When Servicing
•TurnthepowerOFFatthemaincircuitbreakerpanelbeforeopeningtheunittocheckor
repair electrical parts and wiring.
•Keepyourngersandclothingawayfromanymovingparts.
•Cleanupthesiteafteryounish,rememberingtocheckthatnometalscrapsorbitsof
wiring have been left inside the unit being serviced.
•Afterinstallation,explaincorrectoperationtothecustomer,usingtheoperatingmanual.
WARNING
Nevertouchelectricalcomponentsimmediatelyafterthepowersupplyhasbeenturned
off.Electricalshockmayoccur.Afterturningoffthepower,alwayswait10minutesor
more before touching electrical components.
•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operatingmanual,tothecustomer.Requestthe
customertokeepthemonhandforfutureuse,suchasforrelocatingorrepairingtheunit.
WARNING
•Installationofthisproductmustbedonebyexperiencedservicetechniciansorprofes-
sionalinstallersonlyinaccordancewiththismanual.Installationbynon-professional
orimproperinstallationoftheproductmight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be-
foretheworkiscompletedcancauseseriousaccidentssuchaselectricshockorre.
•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.
•Installationmustbeperformedinaccordancewithregulations,codes,orstandardsfor
electricalwiringandequipmentineachcountry,region,ortheinstallationplace.
•Donotusemeanstoacceleratethedefrostingprocessortoclean,otherthanthose
recommended by the manufacturer.
•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.
•CancerandReproductiveHarm-www.P65Warnings.ca.gov.
CAUTION
•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adevicenotauthorized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1/8in(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).
•Thisproductisnotexplosionproof,andthereforeshouldnotbeinstalledinanexplo-
sive atmosphere.
•Thisproductcontainsnouser-serviceableparts.Alwaysconsultexperiencedservice
technicians for repairing.
•Whenmovingorrelocatingtheairconditioner,consultexperiencedservicetechnicians
for disconnection and reinstallation of the product.
•Donottouchthealuminumnsofheatexchangerbuilt-intheindoororoutdoorunitto
avoidpersonalinjurywhenyouinstallormaintaintheunit.
•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 to the property.
•Becarefulnottoscratchtheairconditionerwhenhandlingit.
2. PRODUCT SPECIFICATION
2. 1. Precautions for using R410A refrigerant
• Thebasicinstallationworkproceduresarethesameasconventionalrefrigerant
(R22)models.
However,paycarefulattentiontothefollowingpoints:
• Sincetheworkingpressureis1.6timeshigherthanthatofconventionalrefriger-
ant(R22)models,someofthepipingandinstallationandservicetoolsarespecial.
(Refertothefollowingtable.)
Especially,whenreplacingaconventionalrefrigerant(R22)modelwithanewrefriger-
antR410Amodel,alwaysreplacetheconventionalpipingandarenutswiththe
R410Apipingandarenuts.
• ModelsthatuserefrigerantR410Ahaveadifferentchargingportthreaddiameterto
preventerroneouschargingwithconventionalrefrigerant(R22)andforsafety.There-
fore,checkbeforehand.[ThechargingportthreaddiameterforR410Ais1/2-20UNF.]
• Bemorecarefulthatforeignmatter(oil,water,etc.)doesnotenterthepipingthan
withrefrigerant(R22)models.Also,whenstoringthepiping,securelysealtheopen-
ingbypinching,taping,etc.
• Whenchargingtherefrigerant,takeintoaccounttheslightchangeinthecomposition
ofthegasandliquidphases.Andalwayschargefromtheliquidphasewhererefriger-
ant composition is stable.
2. 2. Installation tools
Tool name Contents of change
Gauge manifold
PressureishighandcannotbemeasuredwithaR22
gauge.Topreventerroneousmixingofotherrefrigerants,
the diameter of each port has been changed.
Itisrecommendedtousegaugewithseals-30inHgto768
psi(-0.1to5.3MPa)forhighpressure.
-30inHgto551psi(-0.1to3.8MPa)forlowpressure.
Charge hose
Toincreasepressureresistance,thehosematerialandbase
sizewerechanged.
Vacuum pump
Aconventionalvacuumpump can be usedbyinstallinga
vacuum pump adapter.
Gas leakage detector SpecialgasleakagedetectorforHFCrefrigerantR410A.
■
Copper pipes
Itis necessary to use seamless copper pipes and it is desirable that the amount of residual
oilislessthan0.004oz/100ft(40mg/10m).Donotusecopperpipeshavingacollapsed,
deformedordiscoloredportion(especiallyontheinteriorsurface).Otherwise,theexpansion
valueorcapillarytubemaybecomeblockedwithcontaminants.
AsanairconditionerusingR410AincurspressurehigherthanwhenusingR22,itisneces-
sarytochooseadequatematerials.
WARNING
•Donotusetheexisting(forR22)pipingandarenuts.
Iftheexistingmaterialsareused,thepressureinsidetherefrigerantcyclewillrise
andcausefailure,injury,etc.(UsethespecialR410Amaterials.)
•Use(rellorreplacewith)speciedrefrigerant(R410A)only.Useofunspeciedrefrig-
erantcancauseproductmalfunction,burst,orinjury.
•Donotmixanygasorimpuritiesexceptspeciedrefrigerant(R410A).Inowofairor
applicationofunspeciedmaterialmakestheinternalpressureoftherefrigerantcycle
toohigh,andmaycauseproductmalfunction,burstofpiping,orinjury.
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.
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2. 5. Electrical requirement
Theindoorunitispoweredfromtheoutdoorunit.Donotpowerindoorunitfromseparate
power source.
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
(AWG)
Remarks
Connectioncable AWG18to16
3Wire+Earth(Ground),
1Ø208/230V
CableLength:Limitvoltagedroptolessthan2%.Increasecablegaugeifvoltagedropis
2%ormore.
Cable
Conductor size
(AWG)
Remarks
Remotecontrollercable(2-wiretype) AWG22to16
Non-polar2-wired,
twisted pair
2. 6. Optional parts
Refertoeachinstallationmanualforthemethodofinstallingoptionalparts.
Parts name Model No. Application
Wiredremotecontroller UTY-RNRUZ2
For air conditioner operation
(2-wiredtype)
Simpleremotecontroller
UTY-RSRY
For air conditioner operation
(2-wiredtype)
UTY-RHRY
W-LANinterface UTY-TFSXZ2 ForwirelessLANcontrol
IRreceiverunit UTY-LBTUM For air conditioner operation
Thermostat convertor UTY-TTRX For air conditioner operation
Remotesensor UTY-XSZX
For measuring room tempera-
ture
Externalinputandoutput
PCB
UTY-XCSX
Forconnectingexternal
devices
Externalinputandoutput
PCBbracket
UTZ-GXNA
ForinstallingtheExternalinput
andoutputPCB
Externalconnectkit UTY-XWZXZG For control output port
Airlterkit UTD-LFNA/B/C
LFNA:36/42/48model
LFNB:18/24/30model
LFNC:12model
2. 7. Selecting the pipe material
CAUTION
•Donotuseexistingpipesfromanotherrefrigerationsystemorrefrigerant.
•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0.04oz/100ft(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
incurspressurehigherthanwhenusingconventional(R22)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.
Thicknesses of Annealed Copper Pipes (R410A)
Pipe outside diameter [in (mm)] Thickness [in (mm)]
1/4(6.35) 0.032(0.80)
3/8(9.52) 0.032(0.80)
1/2(12.70) 0.032(0.80)
5/8(15.88) 0.039(1.00)
3/4(19.05) 0.039(1.20)
Name and Shape Q’ty Description
Operating Manual
1
InstallationManual
(indoorunit)
1 (Thisbook)
SpecialnutA
(largeange)
4
For suspending the indoor unit
from ceiling
SpecialnutB
(smallange)
4
Washer
8
Couplerheatinsulation(large)
1
Forindoorsidepipejoint
(gaspipe)
Couplerheatinsulation(small)
1
Forindoorsidepipejoint
(liquidpipe)
Cabletie(large)
4 Forxingtheheatinsulation
Cabletie(medium)
1
Forxingtheremotecontroller
cable
Cabletie(small)
1
Forxingtheremotecontroller
cable
Drainhoseinsulation
1
Insulatesthedrainhoseand
vinyl hose
Drainhose
1
For installing drain pipe
(Ø1in[I.D.],Ø1-1/4in[O.D.])
Hose Band
1 For installing drain hose
2. 4. 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.
Model
Diameter [in (mm)]
Gas pipe Liquid pipe
12 3/8(9.52) 1/4(6.35)
18 1/2(12.70) 1/4(6.35)
24/30/36/42/48 5/8(15.88) 3/8(9.52)
• Usepipewithwater-resistantheatinsulation.
CAUTION
Installheatinsulationaroundboththegasandliquidpipes.Failuretodosomaycause
waterleaks.
Useheatinsulationwithheatresistanceabove248°F(120°C).(Reversecyclemodel
only)
Inaddition,ifthehumiditylevelattheinstallationlocationoftherefrigerantpipingis
expectedtoexceed70%,installheatinsulationaroundtherefrigerantpiping.Ifthe
expectedhumiditylevelis70to80%,useheatinsulationthatis9/16in(15mm)or
thickerandiftheexpectedhumidityexceeds80%,useheatinsulationthatis13/16in
(20mm)orthicker.Ifheatinsulationisusedthatisnotasthickasspecified,condensa-
tionmayformonthesurfaceoftheinsulation.Inaddition,useheatinsulationwithheat
conductivityof0.045W/(m·K)orless(at68°F(20°C)).
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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equip-
ment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unitinthefollowingareas:
– Areawithhighsaltcontent,suchasattheseaside.Itwilldeterioratemetalparts,
causingthepartstofail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failortheunit
toleakwater.
– Areawhereisclosetoheatsources.
– 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,grow-
ingplants,orpreservingprecisiondevicesorartobjects.Itcandegradethequalityof
thepreservedorstoredobjects.
•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40in(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40in(1m)apart,youcouldstillreceivenoise
undersomesignalconditions.)
•Ifchildrenunder10yearsoldmayapproachtheunit,takepreventivemeasuressothat
they cannot reach the unit.
•Installtheunitwhereambienttemperaturedoesnotreach140°F(60°C)ormore.
Takeameasuresuchasventilationforanenvironmentinwhichheatisretained.
(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
Unit: in (mm)
6(150)
or more
12(300)
or more
99(2500)ormore
(Whennoceiling)
1(20)ormore
1(20)ormore
Provide a service access for maintenance purposes.
(Bottom side) Unit: in (mm)
AIR
Controlbox
12(300)or
more
20(500)ormore
20(500)ormore
Serviceaccess
*Theserviceaccessnecessaryforfanunitsandltermaintenance.
(Bottom side) Unit: in (mm)
AIR
Serviceaccess
Fan unit side
12(300)ormore
20(500)ormore
4(100)ormore
4(100)
3. 3. Installing the unit
WARNING
•Installtheairconditionerinalocationwhichcanwithstandaloadofatleast3times
theweightofthemainunitandwhichwillnotamplifysoundorvibration.Iftheinstal-
lationlocationisnotstrongenough,theindoorunitmayfallandcauseinjuries.
MODEL Withstandableweight(Unitweightx3*)
AR12 198Lbs(90kg)
AR18/24/30 277Lbs(126kg)
AR36/42/48 363Lbs(165kg)
*InaccordancewithULstandards.
•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equip-
ment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.
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CAUTION
Conrmthedirectionsoftheairintakeandoutletbeforeinstallingtheunit.
3. 3. 1. Position the ceiling hole
Hanging bolt installation diagram.
Unit: in (mm)
(Top side)
29-1/2(750)
27-9/16(700)
24-13/16(630)
A
B
C
Model
Dimension [in (mm)]
A B
C
12 27-9/16(700) 29-1/8(740) 31-1/2(800)
18/24/30 39-3/8(1000) 40-15/16(1040) 43-5/16(1100)
36/42/48 55-1/8(1400) 56-11/16(1440) 59-1/16(1500)
(Right side)
2-1/4
(57)
7/8
(22)
8-9/16(218)
10-1/16(256)
8-3/4(222)
1
(25)
7/8
(22)
3. 3. 2. Body installation
HangingboltM10
(Locallypurchased)
SpecialnutA
(Accessory)
Washer
(Accessory)
Hanger
SpecialnutB
(Accessory)
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
AIR
Basehorizontaldirectionlevelingontopoftheunit.
Drainhose
0to3/16in
(0to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to3/16in(0to5mm).
3. 4. Intake duct connection
Followtheprocedureinthefollowinggure.
*18/24/30/36/42/48modelisdifferentfromthegure.
(Backside)
12model:27-9/16in(700mm)
18/24/30model:39-3/8in(1000mm)
36/42/48model:55-1/8in(1400mm)
300mm
Theairinletductcanbechangedbyreplacingtheintakegrilleandservicepanel.
Forthebottomairintake,position(1)theintakegrille,and(2)theservicepanel,asshown
inthefollowinggure.(Thefactorysettingisbackairintake.)
(2)
(1)
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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
“6.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).
•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
(Fieldsupply)
AirInletGrille
(Fieldsupply)
(Room)
Duct
(Fieldsupply)
•Whenconnectingtheduct,performduct-insulationappropriatefortheinstallingenvi-
ronment.
Inappropriateinsulationworkmaycausecondensationonthesurfaceoftheinsulat-
ingmaterial,andmayleadtocondensationdripping.
3. 5. Drain installation
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.
Unit: in (mm)
11(280)
1-9/16(40)
11-13/16(300)
5-1/16(128)
2-9/16(65)
5-11/16(145)
9-1/8(232)
1-1/8(29)
Drainpipe
O.D.Ø1-1/4(32)
Drainpipe
O.D.Ø1-1/4(32)
(Right side)
3. 5. 1. Installing the drain hose
(1) Installthedrainhose(accessory)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
[outsidediameter1-1/16in(26.6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.
Unit: in (mm)
Hoseband(Accessory)
SoftPVCside
Areato
apply
adhesive
Joint pipe
(Locallypurchased)
Drainpipe[O.D.1-1/16(26.6)]
(Locallypurchased)
3/16~3/8
(5~10)
13/16(20)
Drainhose
(Accessory)
3/16(4)orless
9/16(15)
Indoorunit
Drainhose
3-15/16in
(100mm)
Drainhoseinsulation
(Accessory)
Hoseband(Accessory)
Overlap the heat insulation.
Drainhoseinsulation
(Accessory)
■
When drain pump is used
Unit: in (mm)
Gapof60to79(1,500to2,000)
27(700)orless
Horizontalor
upward gradient
Supporter
Max.
12(300)
Locallyarrangedpipe
GOOD
O.D
1-1/16(26.6)
or more
Rise
Airbleeding
PROHIBITED
Trap
Observe the following procedures to construct centralized drain pipe
ttings.
O.D1-1/2in(38mm)ormore
Downwardgradient1/100ormore
28in(700mm)orless
■
When drain pump is not used (Natural drainage)
Ifthedrainpumpisnotused,pleasemovethepositionofthedraincapandinsulation.
NOTE:
• Installthedrainpipewithdownwardgradient(1/50to1/100)andsotherearenorisesor
traps in the pipe.
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Drain
pipe
Outlet
airow
Arrangethedrainpipe
lower than this portion
GOOD
• Whenthepipeislong,installsupporters.
Supporter
60to79in(1.5to2m)
Trap
Rise
PROHIBITED
Airbleeding
3. 5. 2. Check for drainage
Pourabout1literofwaterfromthepositionshowninthediagramorfromtheairowoutlet
tothedewtray.Checkforanyabnormalitiessuchasstrangenoisesandwhetherthedrain
pump functions normally.
CAUTION
Makesurethedrainwaterisproperlydrained.
3. 6. 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open-
ingsbypinching,taping,etc.
•Whilebrazingthepipes,besuretoblowdrynitrogengasthroughthem.
3. 6. 1. Pipe connection
■
Flaring
UsespecialpipecutterandaretooldesignedforR410Apipework.
(1) Cuttheconnectionpipetothenecessarylengthwithapipecutter.
(2) Holdthepipedownwardsothatcuttingswillnotenterthepipeandremoveanyburrs.
(3) Insertthearenut(alwaysusethearenutattachedtotheindoorunit(s)andoutdoor
unitorbranchboxrespectively)ontothepipeandperformtheareprocessingwitha
aretool.UsethespecialR410Aaretool,ortheconventionalaretool.Leakageof
refrigerantmayresultifotherarenutsareused.
(4) Protectthe pipesbypinching themor withtapeto preventdust,dirt,orwater from
entering the pipes.
Checkif[L]isareduniformly
andisnotcrackedorscratched.
Pipe
Die
B
A
L
Pipe outside diameter
[in (mm)]
Dimension A [in (mm)]
Dimension B
0 (0)
-0.015 (-0.4)
[in (mm)]
Flare tool for R410A,
clutch type
1/4(6.35)
0to0.020
(0to0.5)
3/8(9.1)
3/8(9.52) 1/2(13.2)
1/2(12.70) 5/8(16.6)
5/8(15.88) 3/4(19.7)
3/4(19.05) 15/16(24.0)
Whenusingconventional(R22)flaretoolstoflareR410Apipes,thedimensionAshould
beapproximately0.020in(0.5mm)morethanindicatedinthetable(forflaringwith
R410Aflaretools)toachievethespecifiedflaring.Useathicknessgaugetomeasurethe
dimensionA.ItisrecommendedthataR410Aflaringtoolisused.
Widthacross
ats
Pipe outside diameter
[in (mm)]
Width across flats of Flare
nut [in (mm)]
1/4(6.35) 11/16(17)
3/8(9.52) 7/8(22)
1/2(12.70) 1(26)
5/8(15.88) 1-1/8(29)
3/4(19.05) 1-7/16(36)
■
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1-15/16in(50mm)orover.
•Ifthepipeisbentrepeatedlyatthesameplace,itwillbreak.
■
Flare connection
CAUTION
•Besuretoapplythepipeagainsttheportontheindoorunitcorrectly.Ifthecentering
isimproper,thearenutcannotbetightenedsmoothly.Ifthearenutisforcedto
turn,thethreadswillbedamaged.
•Donotremovethearenutfromtheindoorunitpipeuntilimmediatelybeforecon-
necting the connection pipe.
•Donotusemineraloilonaredpart.Preventmineraloilfromgettingintothesystem
as this would reduce the lifetime of the units.
(1) Detachthecapsandplugsfromthepipes.
(2) Centeringthepipeagainstportontheindoorunit,turnthearenutwithyourhand.
(3) Whenthearenutistightenedproperlybyyourhand,holdthebodysidecouplingwith
aseparatespanner,thentightenwithatorquewrench.(Seethetablebelowforthe
arenuttighteningtorques.)
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CAUTION
•Holdthetorquewrenchatitsgrip,keepingitintherightanglewiththepipe,inorder
totightenthearenutcorrectly.
•Tighten thearenutswithatorquewrenchusingthespeciedtighteningmethod.
Otherwise,thearenutscouldbreakafteraprolongedperiod,causingrefrigerantto
leakandgenerateahazardousgasiftherefrigerantcomesintocontactwithaame.
Connectionpipe
Tightenwith2wrenches.
HoldingWrench
Flare nut
Torquewrench
Indoorunitpipe
(Bodyside)
Flare nut [in (mm)] Tightening torque [ft·lb (N·m)]
1/4(6.35)dia. 12to13(16to18)
3/8(9.52)dia. 24to31(32to42)
1/2(12.70)dia. 36to45(49to61)
5/8(15.88)dia. 46to55(63to75)
3/4(19.05)dia. 66to81(90to110)
3. 7. 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.
•WhenusingtheFreshairintake,settheRoomtemperaturesensorswitching(Aux.)
to“WiredRemoteController”(01),ortousetheRemotesensor.
(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
3. 8. 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.
•Usetheincludedconnectioncablesandpowercablesoronesspeciedbythemanu-
facturer.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.Im-
properly connected or secured cables can cause serious accidents such as overheat-
ing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cur-
rent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expo-
sure 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dis-
charge static electricity charged in the body.
– DonottouchterminalsofpartsandpatternsimplementedonPCB.
3. 8. 1. Wiring system diagram
■
Connection cable (to outdoor unit)
Earth(ground)line
Power line
Controlline
Indoorunit
Outdoor unit
Disconnectswitch
(Locallypurchased)
NOTES:DisconnectSwitch-Fieldsuppliedifrequiredbylocalcode.Selectthecorrect
capacity of disconnect switch according to the load.
■
Wired remote controller cable
Red
White
2-wire type
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3. 8. 2. Connection cable preparation
■
Connection cable
Earth(ground)
wire
Conduitconnector
Keeptheearth(ground)wirelongerthantheotherwires.
■
Remote controller cable
For 2-wire type
1-3/16in(30mm)
3. 8. 3. 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3/8in(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 [lbf·in (N·m)]
M4screw 11to16(1.2to1.8)
Screwwith
special washer
Ring
terminal
Terminalblocks
Wire
Wire
Screwwith
special
washer
Ring
terminal
3. 8. 4. Connection wiring
CAUTION
•Becarefulnottomistakethepowersupplycableandconnectionwireswheninstall-
ing.
•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.(3locations)
Conduitconnector
(Locallypurchased)
Locknut
(Locallypurchased)
Attachtheconduitconnectoronthewiringconnectingport.
(Thegrommetedgingandtheconnectioncableclampare
notused.)
■
Connection cable
Controlline
Conduit
connector
Power line
Outdoor
unit
Earth(ground)
■
Remote controller cable
2-wire type
White
Red
Remote
controller
cable
Remotecontroller
*Earth(Ground)theremotecontrollerifithasaearth(ground)wire.
(2) Afterwiringiscomplete,securetheremotecontrollercableandconnectioncable
with the wire clamper or cable tie.
Connectioncable
(tooutdoorunit)
Remotecontrollercable
Cabletie(medium)
(Accessory)
Controlbox
Wireclamper
(3) Sealthecableoutletorothergapswithputtytopreventdewcondensationorinsect
fromenteringtheelectriccontrolbox.
(4) Replacethecontrolboxcover.
CAUTION
•Donotbundletheremotecontrollercable,orwiretheremotecontrollercableinpar-
allel,withtheindoorunitconnectionwire(totheoutdoorunit)andthepowersupply
cable.Itmaycauseerroneousoperation.
•Tightentheindoorunitconnectionwireandpowersupplyindoorandoutdoorunit,
terminalboardconnectionsrmlywiththeterminalboardscrews.Faultyconnection
maycauseare.
•Connecttheindoorunitconnectionwirebymatchingthenumbersoftheoutdoorand
indoor units terminal board numbers as shown in terminal label.
•Besuretorefertotheconnectiondiagramforthecorrecteldwiring.Wrongwiring
causes malfunction of the unit.
(5) Fixtheconduitwiththesupportersasshownbelow.
Conduit(Powersupplycable)
Indoorunit
Supporter
30in
(756mm)
or less
54in
(1,361mm)
or less
54in
(1,361mm)
or less
54in
(1,361mm)
or less
3. 9. Remote controller installation
Toinstallandsettheremotecontroller,refertotheinstallationmanualoftheremote
controller(wiredtype).
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4. OPTIONAL INSTALLATION WORK
4. 1. Optional kit installation
WARNING
Regulationofcablediffersfromeachlocality,referinaccordancewithlocalrules.
Y1 Y2 Y3 12Y1 Y2 Y3 12
Terminal
(Externalin)
CN8(Remotesensor)
CN48
(IRreceiver)
CN65
(Externalin/outPCB)
CN47
(Externalout)
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.
ConnectorNo. Option type
CN48 IRreceiver(UTY-LBTUM)
CN8 Remotesensor(UTY-XSZX)
CN47*1 Connectwire(UTY-XWZXZG)
CN65*2 ExternalinputandoutputPCB(UTY-XCSX)
*1:
Forexternaloutputterminalsetting,refertoFunctionNo.60in“6.FUNCTIONSETTING”.
*2:Otheroptions(WLANadapter,converters,etc.)maybeavailablebyusingtheoptional
ExternalinputandoutputPCB.
4. 2. External input and output
4. 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492ft.(150m).
• 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.
● Dry contact terminal
Whenapowersupplyisunnecessaryattheinputdeviceyouwanttoconnect,usetheDry
contact terminal.
*1
PCB
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
ON
OFF
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.
Connecteddevice
Terminal
When function setting is "Operation/Stop" mode 2.
Input signal Command
OFF→ON Operation
ON→OFF Stop(R.C.disabled)
4. 2. 2. External output
• Atwistedpaircable(22AWG)shouldbeused.Maximumlengthofcableis82ft.(25m).
• 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)
or
● 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
60
00
Stop 0V
Operation DC12V
01-05
OFF 0V
ON DC12V
06
Stop 0V
Operation DC12V
07-08
OFF 0V
ON DC12V
09
Normal 0V
Error DC12V
10
Indoorunitfanstop 0V
Indoorunitfanoperation DC12V
11
ExternalheaterOFF 0V
ExternalheaterON DC12V
4. 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.
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4. 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”
5. REMOTE CONTROL INSTALLATION
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.
•UseaninsulatedscrewdrivertosettheDIPswitches.
5. 1. Group control
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.6.Optionalparts”.
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)
A
BCDE
I.U. I.U. I.U. I.U.
Remote
controller
A,B,C,D,E:Remotecontrollercable.(Referto“2.5.Electricalrequirement”)
A+B+C+D+E≤1640ft(500m)
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.
SW100
●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.
Setting Setting range Switch 100
Remotecontroller
address
00to15
Setting
example00
1234
ON
RCAD
Example
If4indoorunitsareconnected.
RC AD SW
00
RC AD SW
01
RC AD SW
02
RC AD SW
03
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
NOTE:
BesuretosetconsecutiveR.C.address.
Theindoorunitscannotbeoperatedifanumberisskipped.
5. 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Wiredtypewith
2WiredType.
A
I.U.
AB
I.U.
Primary Primary Secondary
A,B:Remotecontrollercable.(Referto“2.5.Electricalrequirement”)
A≤1640ft(500m),A+B≤1640ft(500m)
5. 3. DIP switch 101 setting
■
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.
■
Drainage function setting
Ifcontaineddrainpumpisnotused,setthedrainagefunctionto“Disable”inthedrainage
function switching.
ChangethefollowingsettingsbyusingtheDIPswitch.
SW101
(♦...Factorysetting)
DIP switch 101
DIP SW state
Details
ON
OFF
1
Disable
Enable♦
Drainagefunctionsetting
2
-
-
Cannotbeused(DonotChange)
3
Enable
Disable♦
Fan delay setting
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6. 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.
6. 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
11
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
30
(Forcooling)
31
(Forheating)
00 Standardsetting ♦
01 Nocorrection0°F(0.0°C)
02 -1°F(-0.5°C)
More
Cooling
Less
Heating
03 -2°F(-1.0°C)
04 -3°F(-1.5°C)
05 -4°F(-2.0°C)
06 -5°F(-2.5°C)
07 -6°F(-3.0°C)
08 -7°F(-3.5°C)
09 -8°F(-4.0°C)
10 +1°F(+0.5°C)
Less
Cooling
More
Heating
11 +2°F(+1.0°C)
12 +3°F(+1.5°C)
13 +4°F(+2.0°C)
14 +5°F(+2.5°C)
15 +6°F(+3.0°C)
16 +7°F(+3.5°C)
17 +8°F(+4.0°C)
■
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°F(0.0°C)
02 -1°F(-0.5°C)
More
Cooling
Less
Heating
03 -2°F(-1.0°C)
04 -3°F(-1.5°C)
05 -4°F(-2.0°C)
06 -5°F(-2.5°C)
07 -6°F(-3.0°C)
08 -7°F(-3.5°C)
09 -8°F(-4.0°C)
10 +1°F(+0.5°C)
Less
Cooling
More
Heating
11 +2°F(+1.0°C)
12 +3°F(+1.5°C)
13 +4°F(+2.0°C)
14 +5°F(+2.5°C)
15 +6°F(+3.0°C)
16 +7°F(+3.5°C)
17 +8°F(+4.0°C)
■
Auto restart
Enableordisableautomaticrestartafterapowerinterruption.
(♦...Factorysetting)
Function
Number
Setting
Value
Setting Description
40
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wirelessremotecontroller)
WhenusingtheWiredremotecontrollertemperaturesensor,changethesettingto"Both"
(01).
(♦...Factorysetting)
Function
Number
Setting
Value
Setting Description
42
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
43
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
46
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
48
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
49
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operatingmanualofeach
remote controller.
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■
Switching functions for external output terminal
Functionsoftheexternaloutputterminalcanbeswitched.
(♦...Factorysetting)
Function
Number
Setting
Value
Setting Description
60
00 Operation status ♦
01to08
Other status
(RefertotheDesign&technicalmanual.)
09 Errorstatus
10 Fresh air control
11 Externalheateroutput
■
Emergency heat for external output terminal
• Enablesordisablesemergencyheatinput.
• To use thisfunction, select "External heater output" afterentering "Function Number
60".Formoreinformation,pleaserefertotheDesign&technicalmanual.
(♦...Factorysetting)
Function
Number
Setting
Value
Setting Description
73
00 Disable ♦
01 Enable
■
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
Emergencyheatforexternaloutputterminal
AftercompletingtheFunctionSetting,besuretoturnoffthepowerandturnitonagain.
6. 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
26
03 0.12in.WG(30Pa)
04 0.16in.WG(40Pa)
05 0.20in.WG(50Pa)
06 0.24in.WG(60Pa)
07 0.28in.WG(70Pa)
08 0.32in.WG(80Pa)
09 0.36in.WG(90Pa)
10 0.40in.WG(100Pa)
11 0.44in.WG(110Pa)
12 0.48in.WG(120Pa)
13 0.52in.WG(130Pa)
14 0.56in.WG(140Pa)
15 0.60in.WG(150Pa)
16 0.64in.WG(160Pa)
17 0.68in.WG(170Pa)
18 0.72in.WG(180Pa)
19 0.76in.WG(190Pa)
20 0.80in.WG(200Pa)
31
Standard0.18in.WG(45Pa):12/18/24model
0.23in.WG(57Pa):30/36/42model
0.28in.WG(70Pa):48model
♦
32 Automaticairowadjustment
* The range of static pressure is different by model.
Fordetails,seetheFanperformancecurveofthetechnicaldata.
Model name Rangeofstaticpressure
12/18/24/30/36model 0.12to0.8in.WG(30to200Pa)
42/48model
0.12to0.72in.WG(30to180Pa)
RecordthesettingvalueofFunction26intheSettingrecordtablein“6.1.Functionde-
tails”.
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auto-
matic changeable dampers,etc.,setsothattheexternalstaticpressureisthelowest.
NOTE:
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
26
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set-
tingmayresultininsufcientairoworwaterleakage.
•WhentheductoroutletinstallationsarechangedaftertheAutomaticairowadjust-
ment is completed,repeattheprocedurefromstep1.
7. 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operatingmanualprovided,andcheck
that it is operating normally.
9381386246-03_IM.indb 13 7/25/2019 09:57:25
En-14
8. TEST RUN
8. 1. Check items
□Isoperationofeachbuttonontheremotecontrolunitnormal?
□Doeseachlamplightnormally?
□Isthedrainnormal?
□Donothaveanabnormalnoiseandvibrationduringoperation?
Donotoperatetheairconditionerintestrunforalongtime.
8. 2. Operation method
Dependingonyourinstallation,choosefromthefollowing:
■
By the wireless remote controller (with [TEST RUN] button)
• Tostarttestrun,pressthe[START/STOP]buttonandthe[TESTRUN]buttononthe
remote controller.
• Toendtestrun,presstheremotecontroller[START/STOP]button.
■
By the IR receiver unit
• Tostarttestrun,pressthe[MANUALAUTO]buttonoftheIRreceiverformorethan10
seconds(forcedcooling).
• Toendtestrun,pressthe[MANUALAUTO]buttonformorethan3secondsorpress
theremotecontroller[START/STOP]button.
• TheOperationindicatorlampandTimerindicatorlampwillsimultaneouslyashduring
the test run mode.
■
By the wired remote controller
• Fortheoperationmethod,refertotheinstallationmanualandtheoperatingmanualof
the wired remote controller.
HeatingtestrunwillbegininafewminuteswhenHEATisselectedbytheremotecontroller
[reversecyclemodelonly].
9. FINISHING
Installtheheatinsulationmaterialafterperformingarefrigerantleakcheck(seethe
installation manual for the outdoorunitfordetails).
Coupler heat insulation
Nogaps
Indoorunitside
Cableties(large)
(Accessory)
Pipes
(Gasandliquidpipes)
Couplerheatinsulation
(Accessory)
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.
10. CUSTOMER GUIDANCE
Explainthefollowingtothecustomerinaccordancewiththeoperatingmanual:
(1) Startingandstoppingmethod,operationswitching,temperatureadjustment,timer,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.)
11. ERROR CODES
Ifyouuseawiredtyperemotecontroller,errorcodeswillappearontheremotecontrol-
ler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.
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]
(2)
(2)
Indoorunitcapacityerror
(2)
(3)
Combinationerror
(2)
(4)
•Connectionunitnumber
error(indoorsecondaryunit)
[SimultaneousMulti]
•Connectionunitnumbererror
(indoorunitorbranchunit)
[FlexibleMulti]
(2)
(6)
Indoorunitaddresssettingerror
(2)
(7)
Primaryunit,secondaryunitsetup
error[SimultaneousMulti]
(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
9381386246-03_IM.indb 14 7/25/2019 09:57:32
En-15
Error display
Wired
remote
controller
Error code
Description
OPERATION
lamp (green)
TIMER
lamp
(orange)
ECONOMY
lamp
(green)
(5)
(3)
Drainpumperror
(5)
(4)
ElectricaircleanerreverseVDD
error
(5)
(5)
Filter set error
(5)
(7)
Dampererror
(5)
(8)
Intakegrilleerror
(5)
(9)
Indoorunitfanmotor2error
(Leftsidefan)
(5)
(10)
Indoorunitfanmotor3error
(Rightsidefan)
(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
(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
Error display
Wired
remote
controller
Error code
Description
OPERATION
lamp (green)
TIMER
lamp
(orange)
ECONOMY
lamp
(green)
(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]
Displaymode
:0.5sON/0.5sOFF
:0.1sON/0.1sOFF
() :Numberofashing
9381386246-03_IM.indb 15 7/25/2019 09:57:41
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Fujitsu ARU12RGLX Installation guide

ARU12RGLX
Fujitsu
Brand
Fujitsu
Model
ARU12RGLX
Type
Installation guide
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