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INSTALLATION MANUALR410A Split Series

Installation manualR410A Split series

InstallationsanleitungSplit-Baureihe R410A

Manuel dinstallationSérie split R410A

MontagehandleidingR410A Split-systeem

Manual de instalaciónSerie Split R410A

Manuale dinstallazioneSerie Multiambienti R410A

Εγχειρίδιο εγκατάστασηςδιαιρούμενης σειράς R410A

Manual de Instalação Série split R410A

Руководство по монтажуСерия R410A с раздельной установкой

Montaj kılavuzlarıR410A Split serisi

ModelsRXS20K3V1B RKS20J2V1BRXS25K3V1B RKS25J2V1BRXS20K2V1B RKS35J2V1BRXS25K2V1BRXS35K2V1BRXS20J2V1BRXS25J2V1BRXS35J2V1B

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1 ■English

Safety Precautions•TheprecautionsdescribedhereinareclassifiedasWARNINGandCAUTION.Theybothcontainimportantinforma-tionregardingsafety.Besuretoobserveallprecautionswithoutfail.

•MeaningofWARNINGandCAUTIONnotices

WARNING ........Failure to follow these instructions properly may result in personal injury or loss of life.

CAUTION .........Failure to observe these instructions properly may result in property damage or personal injury, which may be serious depending on the circumstances.

•Thesafetymarksshowninthismanualhavethefollowingmeanings:

Besuretofollowtheinstructions. Besuretoestablishanearthconnection. Neverattempt.

•Aftercompletinginstallation,conductatrialoperationtocheckforfaultsandexplaintothecustomerhowtooperatetheairconditionerandtakecareofitwiththeaidoftheoperationmanual.

WARNING•Askyourdealerorqualifiedpersonneltocarryoutinstallationwork.Donotattempttoinstalltheairconditioneryourself.Improperinstallationmayresultinwaterleakage,electricshocksorfire.

•Installtheairconditionerinaccordancewiththeinstructionsinthisinstallationmanual.Improperinstallationmayresultinwaterleakage,electricshocksorfire.

•Besuretouseonlythespecifiedaccessoriesandpartsforinstallationwork.Failuretousethespecifiedpartsmayresultintheunitfalling,waterleakage,electricshocksorfire.

•Installtheairconditioneronafoundationstrongenoughtowithstandtheweightoftheunit.Afoundationofinsufficientstrengthmayresultintheequipmentfallingandcausinginjury.

•Electricalworkmustbeperformedinaccordancewithrelevantlocalandnationalregulationsandwithinstructionsinthisinstallationmanual.Besuretouseadedicatedpowersupplycircuitonly.Insufficiencyofpowercircuitcapacityandimproperworkmanshipmayresultinelectricshocksorfire.

•Useacableofsuitablelength.Donotusetappedwiresoranextensionlead,asthismaycauseoverheating,electricshocksorfire.

•Makesurethatallwiringissecured,thespecifiedwiresareused,andthatthereisnostrainontheterminalconnectionsorwires.Improperconnectionsorsecuringofwiresmayresultinabnormalheatbuild-uporfire.

•Whenwiringthepowersupplyandconnectingthewiringbetweentheindoorandoutdoorunits,positionthewiressothatthecontrolboxlidcanbesecurelyfastened.Improperpositioningofthecontrolboxlidmayresultinelectricshocks,fireoroverheatingterminals.

•Ifrefrigerantgasleaksduringinstallation,ventilatetheareaimmediately.Toxicgasmaybeproducediftherefrigerantcomesintocontactwithfire.

•Aftercompletinginstallation,checkforrefrigerantgasleakage.Toxicgasmaybeproducediftherefrigerantgasleaksintotheroomandcomesintocontactwithasourceoffire,suchasafanheater,stoveorcooker.

•Wheninstallingorrelocatingtheairconditioner,besuretobleedtherefrigerantcircuittoensureitisfreeofair,anduseonlythespecifiedrefrigerant(R410A).Thepresenceofairorotherforeignmatterintherefrigerantcircuitcausesabnormalpressurerise,whichmayresultinequipmentdamageandeveninjury.

•Duringinstallation,attachtherefrigerantpipingsecurelybeforerunningthecompressor.Iftherefrigerantpipesarenotattachedandthestopvalveisopenwhenthecompressorisrun,airwillbesuckedin,causingabnormalpressureintherefrigerationcycle,whichmayresultinequipmentdamageandeveninjury.

•Duringpump-down,stopthecompressorbeforeremovingtherefrigerantpiping.Ifthecompressorisstillrunningandthestopvalveisopenduringpump-down,airwillbesuckedinwhentherefrigerantpipingisremoved,causingabnormalpressureintherefrigerationcycle,whichmayresultinequipmentdamageandeveninjury.

•Besuretoearththeairconditioner.Donotearththeunittoautilitypipe,lightningconductorortelephoneearthlead.Imperfectearthingmayresultinelectricshocks.

•Besuretoinstallanearthleakagebreaker.Failuretoinstallanearthleakagebreakermayresultinelectricshocksorfire.

CAUTION•Donotinstalltheairconditioneratanyplacewherethereisadangerofflammablegasleakage.Intheeventofagasleakage,build-upofgasneartheairconditionermaycauseafiretobreakout.

•Whilefollowingtheinstructionsinthisinstallationmanual,installdrainpipingtoensureproperdrainageandinsulatepipingtopreventcondensation.Improperdrainpipingmayresultinindoorwaterleakageandpropertydamage.

•Tightentheflarenutaccordingtothespecifiedmethodsuchaswithatorquewrench.Iftheflarenutistootight,itmaycrackafterprolongeduse,causingrefrigerantleakage.

•Makesuretoprovideforadequatemeasuresinordertopreventthattheoutdoorunitbeusedasashelterbysmallanimals.Smallanimalsmakingcontactwithelectricalpartscancausemalfunctions,smokeorfire.Pleaseinstructthecustomertokeeptheareaaroundtheunitclean.

•Thetemperatureofrefrigerantcircuitwillbehigh,pleasekeeptheinter-unitwireawayfromcopperpipesthatarenotthermallyinsulated.

01_EN_3P297037-2D.indd 1 11/1/2012 11:04:40 AM

■English 2

AccessoriesAccessoriessuppliedwiththeoutdoorunit:

Installationmanual 1

Drainplug(heatpumpmodels)

Thereisonthebottompackingcase.

1

Refrigerantchargelabel

1

Multilingualfluorinatedgreenhousegaseslabel

1

Precautions for Selecting the Location1)Chooseaplacesolidenoughtobeartheweightandvibrationoftheunit,wheretheoperationnoisewillnotbeamplified.2)Choosealocationwherethehotairdischargedfromtheunitortheoperationnoisewillnotcauseanuisancetotheneighbours

oftheuser.3)Avoidplacesnearabedroomandthelike,sothattheoperationnoisewillcausenotrouble.4)Theremustbesufficientspacesforcarryingtheunitintoandoutofthesite.5)Theremustbesufficientspaceforairpassageandnoobstructionsaroundtheairinletandtheairoutlet.6)Thesitemustbefreefromthepossibilityofflammablegasleakageinanearbyplace.7)Installunits,powercordsandinter-unitwireatleast3mawayfromtelevisionandradiosets.Thisistopreventinterferenceto

imagesandsounds.(Noisesmaybeheardeveniftheyaremorethan3mawaydependingonradiowaveconditions.)8)Incoastalareasorotherplaceswithsaltyatmosphereofsulfategas,corrosionmayshortenthelifeoftheairconditioner.9)Sincedrainflowsoutoftheoutdoorunit,donotplaceundertheunitanythingwhichmustbekeptawayfrommoisture.

NOTECannotbeinstalledhangingfromceilingorstacked.

CAUTIONWhenoperatingtheairconditionerinalowoutdoorambienttempera-ture,besuretofollowtheinstructionsdescribedbelow.•Topreventexposuretowind,installtheoutdoorunitwithitssuctionsidefacingthewall.

•Neverinstalltheoutdoorunitatasitewherethesuctionsidemaybeexposeddirectlytowind.

•Topreventexposuretowind,itisrecommendedtoinstallabaffleplateontheairdischargesideoftheoutdoorunit.

•Inheavysnowfallareas,selectaninstallationsitewherethesnowwillnotaffecttheunit.

Construct a large canopy.Construct a pedestal.

Install the unit high enough off the ground to prevent burying in snow.

A

BC

D

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3 ■English

Outdoor Unit Installation Drawings

(Foo

t bol

t-hol

e

cent

res)

311

574(Foot bolt-hole centres)(From unit’s side)

105.5

O.D. 9.5mmGas pipe

Liquid pipe O.D. 6.4mm

20g/m

15m

20mMax. allowable piping length

Max. allowable piping height

Additional refrigerantrequired for refrigerant pipe exceeding 10m in length.

*Wrap the insulation pipe with the finishing tape from bottom to top.

In sites with poor drainage, use block bases for outdoor unit. Adjust foot height until the unit is leveled. Otherwise, water leakage or pooling of water may occur.

Where there is a danger of the unit falling, use foot bolts, or wires.

250mm from wall

unit: mm

How to remove the stop valve cover

Remove the screw on the stop valve cover.Slide the lid downward to remove it.

How to attach the stop valve cover

Insert the upper part of the stop valve cover into the outdoor unit to install.Tighten the screws.

Stop valve cover

Allow space for piping and electrical servicing.

1.5mMin. allowable piping length**

* Be sure to add the proper amount of additional refrigerant. Failure to do so may result in reduced performance.** The suggested shortest pipe length is 1.5m, in order to avoid

noise from the outdoor unit and vibration. (Mechanical noise and vibration may occur depending on how the unit is installed and the environment in which it is used.)

When connecting the FVXS indoor unit, the shortest piping length should be no less than around 2.5m.

CAUTION**Set the piping length

from 1.5m to 20m.

Allow 300mm of work space below the ceiling surface.

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■English 4

Installation Guidelines•Whereawallorotherobstacleisinthepathofoutdoorunit’sinletoroutletairflow,followtheinstallationguidelinesbelow.•Foranyofthebelowinstallationpatterns,thewallheightontheoutletsideshouldbe1200mmorless.

More than 50 More than 100

Side view

Direction of air

1200or less

Wall facing one side

Top view

More than 50 More than 50

More than 100

Walls facing two sides

Top view

More than 150

More than 300More than 50

unit: mm

Walls facing three sides

More than 150

Precautions on Installation•Checkthestrengthandleveloftheinstallationgroundsothattheunitwillnotcauseanyoperatingvibrationornoiseafterinstalled.

•Inaccordancewiththefoundationdrawing,fixtheunitsecurelybymeansofthefoundationbolts.(Prepare4setsofM8orM10foundationbolts,nutsandwasherseachwhichareavailableonthemarket.)

•Itisbesttoscrewinthefoundationboltsuntiltheirendsare20mmfromthefoundationsurface.

20

Outdoor Unit Installation1. Installing outdoor unit

1)Wheninstallingtheoutdoorunit,referto“PrecautionsforSelectingtheLocation”andthe“OutdoorUnitInstallationDrawings”.

2)Ifdrainworkisnecessary,followtheproceduresbelow.

2. Drain work1)Usedrainplugfordrainage.2)Ifthedrainportiscoveredbyamountingbaseorfloorsurface,place

additionalfootbasesofatleast30mminheightundertheoutdoorunit’sfeet.3)Incoldareas,donotuseadrainhosewiththeoutdoorunit.

(Otherwise,drainwatermayfreeze,impairingheatingperformance.)

Drain port

Bottom frame

Drain plug

Hose (available commercially,inner dia. 16mm)

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5 ■English

Outdoor Unit Installation3. Flaring the pipe end

1)Cutthepipeendwithapipecutter.2)Removeburrswiththecutsurfacefacing

downwardsothatthechipsdonotenterthepipe.3)Puttheflarenutonthepipe.4)Flarethepipe.5)Checkthattheflaringisproperlymade.

(Cut exactly at right angles.) Remove burrs.

Set exactly at the position shown below.

A

Flaring

Die

CheckFlare’s inner surface must be flaw-free.

The pipe end must be evenly flared in a perfect circle.

Make sure that the flare nut is fitted.

A 0-0.5mm

Clutch-type

Flare tool for R410A

1.0-1.5mm

Clutch-type (Rigid-type)

1.5-2.0mm

Wing-nut type (Imperial-type)

Conventional flare tool

WARNING•Donotusemineraloilonflaredpart.•Preventmineraloilfromgettingintothesystemasthiswouldreducethelifetimeoftheunits.•Neverusepipingwhichhasbeenusedforpreviousinstallations.Onlyusepartswhicharedeliveredwiththeunit.•DoneverinstalladriertothisR410Aunitinordertoguaranteeitslifetime.•Thedryingmaterialmaydissolveanddamagethesystem.•Incompleteflaringmaycauserefrigerantgasleakage.

4. Refrigerant piping work

CAUTION•Usetheflarenutfixedtothemainunit.(Topreventcrackingoftheflarenutbyageddeterioration.)•Topreventgasleakage,applyrefrigerationoilonlytotheinnersurfaceoftheflare.(UserefrigerationoilforR410A.)•Usetorquewrencheswhentighteningtheflarenutstopreventdamagetotheflarenutsandgasleakage.

•Alignthecentresofbothflaresandtightentheflarenuts3or4turnsbyhand.Thentightenthemfullywiththetorquewrenches. Do not apply refrigeration

oil to the outer surface.

Flare nut

Apply refrigeration oil to

the inner surface of the

flare.

Do not apply refrigeration oil to the flare nut

to avoid tightening with excessive torque.

[Apply oil]

Flare nut tightening torqueGas side Liquid side3/8 inch 1/4 inch

32.7-39.9N • m(333-407kgf • cm)

14.2-17.2N • m(144-175kgf • cm)

Valve cap tightening torqueGas side Liquid side3/8 inch 1/4 inch

21.6-27.4N • m(220-280kgf • cm)

21.6-27.4N • m(220-280kgf • cm)

Service port cap tightening torque

10.8-14.7N • m(110-150kgf • cm)

01_EN_3P297037-2D.indd 5 11/1/2012 11:04:42 AM

■English 6

4-1 Caution on pipe handling1)Protecttheopenendofthepipeagainstdustandmoisture.2)Allpipebendsshouldbeasgentleaspossible.Useapipebender

forbending.

Wall

If no flare cap is available, cover the flare mouth with tape to keep dirt or water out.

Be sure to place a cap.

Rain

4-2 Selection of copper and heat insulation materialsWhenusingcommercialcopperpipesandfittings,observethefollowing:1)Insulationmaterial:Polyethylenefoam

Heattransferrate:0.041to0.052W/mK(0.035to0.045kcal/mh°C)Refrigerantgaspipe’ssurfacetemperaturereaches110°Cmax.Chooseheatinsulationmaterialsthatwillwithstandthistemperature.

2)Besuretoinsulateboththegasandliquidpipingandtoprovideinsulationdimensionsasbelow.

Gasside LiquidsideGaspipethermal

insulationLiquidpipethermal

insulationO.D.9.5mm O.D.6.4mm I.D.12-15mm I.D.8-10mm

Minimumbendradius Thickness10mmMin.30mmormore

Thickness0.8mm(C1220T-O)

3)Useseparatethermalinsulationpipesforgasandliquidrefrigerantpipes.

Gas pipeLiquid pipe

Gas pipe insulation

Liquid pipe insulation

Finishing tape Drain hose

Inter-unit wire

01_EN_3P297037-2D.indd 6 11/1/2012 11:04:42 AM

7 ■English

Outdoor Unit Installation5. Purging air and checking gas leakage

WARNING•Donotmixanysubstanceotherthanthespecifiedrefrigerant(R410A)intotherefrigerationcycle.•Whenrefrigerantgasleaksoccur,ventilatetheroomassoonandasmuchaspossible.•R410A,aswellasotherrefrigerants,shouldalwaysberecoveredandneverbereleaseddirectlyintotheenvironment.•UseavacuumpumpforR410Aexclusively.Usingthesamevacuumpumpfordifferentrefrigerantsmaydamagethevacuumpumportheunit.

•Whenpipingworkiscompleted,itisnecessarytopurgetheairandcheckforgasleakage.

•Ifusingadditionalrefrigerant,performairpurgingfromtherefrigerantpipesandindoorunitusingavacuumpump,thenchargeadditionalrefrigerant.

•Useahexagonalwrench(4mm)tooperatethestopvalverod.•Allrefrigerantpipejointsshouldbetightenedwithatorquewrenchatthespecifiedtighteningtorque.

Compound pressure gauge

Pressure metre

High-pressure valve

Low-pressure valve

Vacuum pump Service port

Liquid stop valveValve caps

Gas stop valve

Charging hoses

Gauge manifold

1)Connectprojectionsideofcharginghose(whichcomesfromgaugemanifold)togasstopvalve’sserviceport.

2)Fullyopengaugemanifold’slow-pressurevalve(Lo)andcompletelycloseitshigh-pressurevalve(Hi).(High-pressurevalvesubsequentlyrequiresnooperation.)

3)Dovacuumpumpingandmakesurethatthecompoundpressuregaugereads–0.1MPa(–76cmHg).*1

4)Closegaugemanifold’slow-pressurevalve(Lo)andstopvacuumpump.(Keepthisstateforafewminutestomakesurethatthecompoundpressuregaugepointerdoesnotswingback.)*2

5)Removecapsfromliquidstopvalveandgasstopvalve.

6)Turntheliquidstopvalve’srod90degreescounterclockwisewithahexagonalwrenchtoopenvalve.Closeitafter5seconds,andcheckforgasleakage.Usingsoapywater,checkforgasleakagefromindoorunit’sflareandoutdoorunit’sflareandvalverods.Afterthecheckiscomplete,wipeallsoapywateroff.

7)Disconnectcharginghosefromgasstopvalve’sserviceport,thenfullyopenliquidandgasstopvalves.(Donotattempttoturnvalverodbeyonditsstop.)

8)Tightenvalvecapsandserviceportcapsfortheliquidandgasstopvalveswithatorquewrenchatthespecifiedtorques.

*1.Pipelengthvs.vacuumpumpruntime.

Pipelength Upto15m Morethan15mRuntime Notlessthan10min. Notlessthan15min.

*2. Ifthecompoundpressuregaugepointerswingsback,refrigerantmayhavewatercontentoraloosepipejointmayexists.Checkallpipejointsandretightennutsasneeded,thenrepeatsteps2)through4).

01_EN_3P297037-2D.indd 7 11/1/2012 11:04:42 AM

■English 8

6. Refilling the refrigerantCheckthetypeofrefrigeranttobeusedonthemachinenameplate.Precautions when adding R410AFill from the gas pipe in liquid form.Itisamixedrefrigerant,soaddingitingasformmaycausetherefrigerantcompositiontochange,preventingnormaloperation.1)Beforefilling,checkwhetherthecylinderhasasiphonattachedornot.(Itshouldhavesomethinglike“liquidfillingsiphonattached”displayedonit.)

Filling a cylinder with an attached siphon

Stand the cylinder upright when filling.

There is a siphon pipe inside, so the cylinder need not be upside-down to fill with liquid.

Filling other cylinders

Turn the cylinder upside-down when filling.

•BesuretousetheR410Atoolstoensurepressureandtopreventforeignobjectsentering.

3

56

2

1

4

Please fill in with indelible ink, ■ 1 the factory refrigerant charge of the product, ■ 2 the additional refrigerant amount charged in the field and■ 1 + 2 the total refrigerant charge on the refrigerant charge label supplied with the product.

Important information regarding the refrigerant usedThis product contains fluorinated greenhouse gases covered by the Kyoto Protocol. Do not vent gases into the atmosphere.

Refrigerant type: R410AGWP(1) value: 1975 (1) GWP = global warming potential

1 factory refrigerant charge of the product: see unit name plate

2 additional refrigerant amount charged in the field

3 total refrigerant charge

4 Contains fluorinated greenhouse gases covered by the Kyoto Protocol

5 outdoor unit

6 refrigerant cylinder and manifold for charging

The filled out label must be adhered in the proximity of the product charging port (e.g. onto the inside of the stop valve cover).

NOTENationalimplementationofEUregulationoncertainfluorinatedgreenhousegasesmayrequiretoprovidetheappropriateofficialnationallanguageontheunit.Thereforeanadditionalmultilingualfluorinatedgreenhousegaseslabelissuppliedwiththeunit.Stickinginstructionsareillustratedonthebacksideofthatlabel.

Standby Electricity SavingThe standby electricity saving function turns off power supply to the outdoor unit and sets the indoor unit into standby electricity saving mode, thus reducing the power consumption of the air conditioner.The standby electricity saving function works on the following indoor units.

For all models after the FTXS20/25/35J type

CAUTION•The standby electricity saving function cannot be used for models other than the specified ones.

■ Procedure for turning on standby electricity saving function

1)Checkthatthemainpowersupplyisturnedoff.Turnitoffifhasnotbeenturnedoff.

2)Removethestopvalvecover.3)Disconnecttheselectiveconnectorforstandbyelectricity

saving.4)Turnonthemainpowersupply.

1 2 31 2 3

Standby electricity saving function off.

Standby electricity saving function on.

The standby electricity saving function is turned off before shipping.

CAUTION•Beforeconnectingordisconnectingtheselectiveconnectorforstandbyelectricitysaving,makesurethatthemainpowersupplyisturnedoff.

•Theselectiveconnectorforstandbyelectricitysavingisrequiredifanindoorunitotherthantheaboveapplicableonesisconnected.

01_EN_3P297037-2D.indd 8 11/1/2012 11:04:43 AM

9 ■English

Pump Down OperationIn order to protect the environment, be sure to pump down when relocating or disposing of the unit.

1)Removethevalvecapfromliquidstopvalveandgasstopvalve.2)Carryoutforcedcoolingoperation.3)After5to10minutes,closetheliquidstopvalvewithahexagonalwrench.4)After2to3minutes,closethegasstopvalveandstopforcedcoolingoperation.

Gas stop valve Valve cap

Hexagonal wrench

Close

Liquid stop valve

Service port

Forced cooling operation ■ Using the indoor unit ON/OFF switchPresstheindoorunitON/OFFswitchforatleast5seconds.(Theoperationwillstart.)•Forcedcoolingoperationwillstopautomaticallyafteraround15minutes.Tostoptheoperation,presstheindoorunitON/OFFswitch.

■ Using the indoor unit’s remote controller

•Pleasereadabouttheprocedurein“Trialoperationfromremotecontrol-ler”intheinstallationmanualattachedtotheindoorunit.Pleasesettheoperationmodeto“cooling”.

■ Using the outdoor unit forced cooling operation switch (with standby electricity saving function turned off)

Forcedcoolingoperationcanbeperformedwhentheoutdoorunitforcedcoolingoperationswitchispressedwithinaround3minutesafterpowerissupplied.Pushon“ ”(SW1)withascrewdriver.(Theoperationwillstart.)•Forcedcoolingoperationwillstopautomaticallyafteraround15minutes.Tostoptheoperation,presstheswitch(SW1).

1 2 3

The selective connector for standby electricity saving in use (with standby electricity saving function turned off)

PushScrewdriver

Power supplyterminal block

Forced coolingoperation switch (SW1)

CAUTION•Whenpressingtheswitch,donottouchtheterminalblock.Ithasahighvoltage,sodoingsomaycauseelectricshock.•Afterclosingtheliquidstopvalve,closethegasstopvalvewithin3minutes,thenstoptheforcedcoolingoperation.

Facility Setting (cooling at low outdoor temperature)This function is limited only for facilities (the target of air conditioning is equipment (such as computer)). Never use it in a residence or office (the space where there is a human).1)Cuttingjumper4(J4)onthecircuitboardwillexpandtheoperationrangedownto–15°C.Howeveritwillstopiftheoutdoor

temperaturedropsbelow–20°Candstartbackuponcethetemperaturerisesagain.

1 2 3

S70

S40

S2S90

J5J4J3

Cut J4 with nippers or a similar tools.

CAUTION•Iftheoutdoorunitisinstalledwheretheheatexchangeroftheunitisexposedtodirectwind,provideawindbreakwall.•Intermittentnoisesmaybeproducedbytheindoorunitduetotheoutdoorfanturningonandoffwhenusingfacilitysettings.•Donotplacehumidifiersorotheritemswhichmightraisethehumidityinroomswherefacilitysettingsarebeingused.Ahumidifiermightcausedewjumpingfromtheindoorunitoutletvent.

•Cuttingjumper4(J4)setstheindoorfantaptothehighestposition.Notifytheuseraboutthis.

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■English 10

WiringWARNING•Donotusetappedwires,strandedwires,extensioncords,orstarburstconnections,astheymaycauseoverheating,electricalshock,orfire.

•Donotuselocallypurchasedelectricalpartsinsidetheproduct.(Donotbranchthepowerforthedrainpump,etc.,fromtheterminalblock.)Doingsomaycauseelectricshockorfire.

•Besuretoinstallanearthleakdetector.(Onethatcanhandlehigherharmonics.)(Thisunitusesaninverter,whichmeansthatitmustbeusedanearthleakdetectorcapablehandlingharmonicsinordertopreventmalfunctioningoftheearthleakdetectoritself.)

•Useanall-poledisconnectiontypebreakerwithatleast3mmbetweenthecontactpointgaps.•Donotconnectthepowerwiretotheindoorunit.Doingsomaycauseelectricshockorfire.

•Donotturnonthesafetybreakeruntilallworkiscompleted.1)Striptheinsulationfromthewire(20mm).2)Connecttheconnectionwiresbetweenthe

indoorandoutdoorunitssothattheterminalnumbersmatch.Tightentheterminalscrewssecurely.Werecommendaflatheadscrewdriverbeusedtotightenthescrews.Thescrewsarepackedwiththeterminalboard.

123

1 2 3 L N

Safety breaker 16A

Earth leakage circuit breaker

Earth

Inter-unit wire4-core 1.5mm² or moreH05RN

Firmly fix the wires with the terminal screws. Outdoor unit

Indoor unit

Power supply50Hz 220-240V

Firmly fix the wires with the terminal screws.

Power supply wire3-core 2.5mm² or moreH05RN

1 2 3

Use the specified wire type and connect it securely.

Firmly secure wire retainer so wire terminations will not receive external stress.

1 2 3

L N

Power supplyterminal block

Shape wires so that the service lid and stop valve cover fit securely.

Observethenotesmentionedfollowingwhenwiringtothepowersupplyterminalboard.Precautionstobetakenforpowersupplywiring.

CAUTION•Whenconnectingtheconnectionwirestotheterminalboardusingasinglecorewire,besuretoperformcurling.Problemswiththeworkmaycauseheatandfires.

Strip wire endto this point.

Excessive strip lengthmay cause electricalshock or leakage.

Good Wrong

Good WrongStripping wire at terminal block

•Ifthestrandedwiresmustbeused,makesuretousetheroundcrimp-styleterminalforconnectiontothepowersupplyterminalblock.Placetheroundcrimp-styleterminalsonthewiresuptothecoveredpartandsecureinplace. Stranded wire

Round crimp-styleterminal

3)Pullthewireandmakesurethatitdoesnotdisconnect.Thenfixthewireinplacewithawirestop.

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11 ■English

Trial Operation and Testing1. Trial operation and testing

1-1Measurethesupplyvoltageandmakesurethatitfallsinthespecifiedrange.

1-2Trialoperationshouldbecarriedoutineithercoolingorheatingmode.

•Incoolingmode,selectthelowestprogrammabletemperature;inheatingmode,selectthehighestprogrammabletemperature.1)Trialoperationmaybedisabledineithermodedependingontheroomtemperature.2)Aftertrialoperationiscomplete,setthetemperaturetoanormallevel(26°Cto28°Cincoolingmode,20°Cto24°Cin

heatingmode).3)Forprotection,thesystemdisablesrestartoperationfor3minutesafteritisturnedoff.

1-3Carryoutthetestoperationinaccordancewiththeoperationmanualtoensurethatallfunctionsandparts,suchaslouvermovement,areworkingproperly.•Theairconditionerrequiresasmallamountofpowerinitsstandbymode.Ifthesystemisnottobeusedforsometimeafterinstallation,shutoffthecircuitbreakertoeliminateunnecessarypowerconsumption.

•Ifthecircuitbreakertripstoshutoffthepowertotheairconditioner,thesystemwillrestoretheoriginaloperationmodewhenthecircuitbreakerisopenedagain.

2. Test items

Testitems Symptom Check

Indoorandoutdoorunitsareinstalledproperlyonsolidbases. Fall,vibration,noise

Norefrigerantgasleaks.Incompletecooling/heatingfunction

Refrigerantgasandliquidpipesandindoordrainhoseextensionarethermallyinsulated.

Waterleakage

Draininglineisproperlyinstalled. Waterleakage

Systemisproperlyearthed. Electricalleakage

Thespecifiedwiresareusedforinter-unitwiring. Inoperativeorburndamage

Indoororoutdoorunit’sairinletoroutlethasclearpathofair.Incompletecooling/heatingfunction

Stopvalvesareopened.Incompletecooling/heatingfunction

Indoorunitproperlyreceivesremotecontrolcommands. Inoperative

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Two-dimensional bar code is a code for manufacturing.

3P297037-2D M12B067A (1210) HT

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