EnglishInstallation manualR410A Split series

Français

EspañolManual de instalaciónSerie Split R410A

INSTALLATION MANUALR410A Split Series

ModelsRXS09LVJURXS12LVJU

00_CV_3P300674-1.indd 1 10/18/2011 10:38:27 AM

1■English

Safety Precautions•ReadtheseSafetyPrecautionscarefullytoensurecorrectinstallation.•ThismanualclassifiestheprecautionsintoDANGER,WARNINGandCAUTION.Besuretofollowalltheprecautionsbelow:theyareallimportantforensuringsafety.

DANGER ...... Indicates an imminently hazardous situation which, if not avoided, will result in death or serious injury.

WARNING .... Failure to follow any of WARNING is likely to result in such grave consequences as death or serious injury.

CAUTION ..... Failure to follow any of CAUTION may in some cases result in grave consequences.

•Thefollowingsafetysymbolsareusedthroughoutthismanual:

Besuretoobservethisinstruction. Besuretoestablishagroundconnection. Neverattempt.

•Aftercompletinginstallation,testtheunittocheckforinstallationerrors.GivetheuseradequateinstructionsconcerningtheuseandcleaningoftheunitaccordingtotheOperationManual.

DANGER•Refrigerantgasisheavierthanairandreplacesoxygen.Amassiveleakcouldleadtooxygendepletion,especiallyinbasements,andanasphyxiationhazardcouldoccurleadingtoseriousinjuryordeath.

•Iftherefrigerantgasleaksduringinstallation,ventilatetheareaimmediately.Refrigerantgasmayproduceatoxicgasifitcomesincontactwithfiresuchasfromafanheater,stoveorcookingdevice.Exposuretothisgascouldcausesevereinjuryordeath.

•Aftercompletingtheinstallationwork,checkthattherefrigerantgasdoesnotleak.Refrigerantgasmayproduceatoxicgasifitcomesincontactwithfiresuchasfromafanheater,stoveorcookingdevice.Exposuretothisgascouldcausesevereinjuryordeath.

•Donotgroundunitstowaterpipes,telephonewiresorlightningrodsbecauseincompletegroundingcouldcauseasevereshockhazardresultinginsevereinjuryordeath,andtogaspipesbecauseagasleakcouldresultinanexplosionwhichcouldleadtosevereinjuryordeath.

•Safelydisposeofthepackingmaterials.Packingmaterials,suchasnailsandothermetalorwoodenparts,maycausestabsorotherinjuries.Tearapartandthrowawayplasticpackagingbagssothatchildrenwillnotplaywiththem.Childrenplayingwithplasticbagsfacethedangerofdeathbysuffocation.

•Donotinstallunitinanareawhereflammablematerialsarepresentduetoriskofexplosionresultinginseriousinjuryordeath.

•Donotgroundunitstotelephonewiresorlightningrodsbecauselightningstrikescouldcauseasevereshockhazardresultinginsevereinjuryordeath,andtogaspipesbecauseagasleakcouldresultinanexplosionwhichcouldleadtosevereinjuryordeath.

WARNING•Installationshallbelefttotheauthorizeddealeroranothertrainedprofessional.Improperinstallationmaycausewaterleakage,electricalshock,fire,orequipmentdamage.

•Installtheairconditioneraccordingtotheinstructionsgiveninthismanual.Incompleteinstallationmaycausewaterleakage,electricalshock,fireorequipmentdamage.

•Besuretousethesuppliedorexactspecifiedinstallationparts.Useofotherpartsmaycausetheunittocometofall,waterleakage,electricalshock,fireorequipmentdamage.

•Installtheairconditioneronasolidbasethatislevelandcansupporttheweightoftheunit.Aninadequatebaseorincompleteinstallationmaycauseinjuryorequipmentdamageintheeventtheunitfallsoffthebaseorcomesloose.

•Electricalworkshallbecarriedoutinaccordancewiththeinstallationmanualandthenational,stateandlocalelectricalwiringcodes.Insufficientcapacityorincompleteelectricalworkmaycauseelectricalshock,fireorequipmentdamage.

•Besuretouseadedicatedpowercircuit.Neveruseapowersupplysharedbyanotherappliance.Followallappropriateelectricalcodes.

•Forwiring,useawireorcablelongenoughtocovertheentiredistancewithnosplicesifpossible.Donotuseanextensioncord.Donotputotherloadsonthepowersupply.Useanonlyaseparatededicatedpowercircuit.(Failuretodosomaycauseabnormalheat,electricshock,fireorequipmentdamage.)

•Usethespecifiedtypesofwiresforelectricalconnectionsbetweentheindoorandoutdoorunits.Followallstateandlocalelectricalcodes.Firmlyclamptheinter-unitwiresotheirterminalsreceivenoexternalstresses.Incompleteconnectionsorclampingmaycauseterminaloverheating,fireorequipmentdamage.

01_EN_3P300674-1.indd 1 10/6/2011 1:37:41 PM

2 ■English

Safety Precautions WARNING

•Afterconnectingallwiresbesuretoshapethecablessothattheydonotputunduestressontheelectricalcovers,panelsorterminals.Installcoversoverthewires.Incompletecoverinstallationmaycauseterminaloverheating,electricalshock,fireorequipmentdamage.

•Wheninstallingorrelocatingthesystem,besuretokeeptherefrigerantcircuitfreefromallsubstancesotherthanthespecifiedrefrigerant(R410A),suchasair.(Anypresenceofairorotherforeignsubstanceintherefrigerantcircuitcausesanabnormalpressurerisewhichmayresultinrupture,resultingininjury.)

•Duringpump-down,stopthecompressorbeforeremovingtherefrigerantpiping.Ifthecompressorisstillrunningandthestopvalveisopenduringpump-down,airwillbesuckedinwhentherefrigerantpipingisremoved,causingabnormallyhighpressurewhichcouldleadtoequipmentdamageorandpersonalinjury.

•Duringinstallation,attachtherefrigerantpipingsecurelybeforerunningthecompressor.Iftherefrigerantpipesarenotattachedandthestopvalveisopenduringpump-down,airwillbesuckedinwhenthecompressorisrun,causingabnormallyhighpressurewhichcouldleadtoequipmentdamageandpersonalinjury.

•Besuretoinstallagroundfaultcircuitinterrupterbreaker.Failuretoinstallagroundfaultcircuitinterrupterbreakermayresultinelectricallyshocks,orfirepersonalinjury.

CAUTION•Donotinstalltheairconditionerwheregasleakagewouldbeexposedtoopenflames.Ifthegasleaksandbuildsuparoundtheunit,itmaycatchfire.

•Establishdrainpipingaccordingtotheinstructionsofthismanual.Inadequatepipingmaycausewaterdamage.

•Tightentheflarenutaccordingtothespecifiedtorque.Atorquewrenchshouldbeused.Iftheflarenutistightenedtoomuch,theflarenutmaycrackovertimeandcauserefrigerantleakage.

•Donottouchtheheatexchangerfins.Improperhandlingmayresultininjury.

•Beverycarefulaboutproducttransportation.SomeproductsusePPbandsforpackaging.DonotuseanyPPbandsforameansoftransportation.Itisdangerous.

•Makesuretoprovideforadequatemeasuresinordertopreventthattheoutdoorunitbeusedasashelterbysmallanimals.Smallanimalsmakingcontactwithelectricalpartscancausemalfunctions,smokeorfire.Pleaseinstructthecustomertokeeptheareaaroundtheunitclean.

•Thetemperatureofrefrigerantcircuitwillbehigh,pleasekeeptheinter-unitwireawayfromcopperpipesthatarenotthermallyinsulated.

•ElectricalworkmustbeperformedinaccordancewiththeNEC/CECbyauthorizedpersonnelonly.

AccessoriesAccessoriessuppliedwiththeoutdoorunit:

Installationmanual 1

Drainplug

Thedrainplugislocatedinthebottomofthepackingcase.

1A

B

01_EN_3P300674-1.indd 2 10/6/2011 1:37:41 PM

3■English

Precautions for Selecting the Location1) Chooseaplacesolidenoughtobeartheweightandvibrationoftheunit,wheretheoperationsoundswillnotbeamplified.2) Choosealocationwherethehotairdischargedfromtheunitortheoperationsoundswillnotdisturbtheneighborsoftheuser.3) Avoidinstallingnearbedroomssothatoperationsoundswillnotbeaproblem.4) Theremustbesufficientspaceforcarryingtheunitintoandoutofthesite.5) Theremustbesufficientspaceforairpassageandnoobstructionsaroundtheairinletandtheairoutlet.6) Thesitemustbefreefromthepossibilityofflammablegasleakageinanearbyplace.7) Installunits,powercordsandinter-unitwireatleast10ft(3m)awayfromtelevisionandradiosets.Thisistopreventinterference

toimagesandsounds.(Noisesmaybeheardeveniftheyaremorethan10ft(3m)awaydependingonradiowaveconditions.)8) Incoastalareasorotherplaceswithsaltyatmosphereofsulfategas,corrosionmayshortenthelifeoftheairconditioner.9) Sincedrainflowsoutoftheoutdoorunit,donotplaceanythingundertheunitwhichmustbekeptawayfrommoisture.

NOTECannotbeinstalledhangingfromceilingorstacked.

CAUTIONWhenoperatingtheairconditionerinalowoutdoorambienttemperature,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.

01_EN_3P300674-1.indd 3 10/6/2011 1:37:42 PM

4 ■English

Outdoor Unit Installation Drawings

9-7/8 (250) from wall

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.(F

oot b

olt-h

ole

cen

ters

)

CAUTION**Set the piping length from 4.92ft (1.5m) to 65.6ft (20m).

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

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.

(Foot bolt-hole centers)(From unit’s side)

Max. allowable piping height

Min. allowable piping length

Max. allowable piping length 65.6ft (20m)

4.92ft (1.5m)

49.2ft (15m)

Liquid pipe

Gas pipe

O.D. 1/4 inch (6.4mm)

O.D. 3/8 inch (9.5mm)

0.21oz/ft (20g/m)

Additional refrigerant required for refrigerant pipe exceeding 32.8ft (10m) in 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 4.92ft (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 FDXS12 indoor unit, the shortest piping length should be no less than 9.84ft (3m).

unit : inch (mm)

22-5/8 (574) 4-1/8(105.5)

12-1

/4 (3

11)

Wrap the insulation pipe with the finishingtape from bottom to top.

Allow 11-13/16 inch (300mm) of work space below the ceiling surface.

01_EN_3P300674-1.indd 4 10/6/2011 1:37:42 PM

5■English

Installation Guidelines •Whereawallorotherobstacleisinthepathofoutdoorunit’sinletoroutletairflow,followtheinstallationguidelinesbelow.•Foranyofthebelowinstallationpatterns,thewallheightontheoutletsideshouldbe47-1/4inch(1200mm)orless.

More than 1-15/16 (50)

More than 3-15/16 (100)

Side view

47-1/4(1200)or less

More than 1-15/16 (50)

More than 1-15/16 (50)

More than 5-7/8 (150)

Top view

More than 3-15/16 (100)

Top view

unit: inch (mm)

More than 5-7/8 (150)

More than 11-13/16 (300)More than 1-15/16 (50)

Wall facing one side Walls facing two sides

Walls facing three sides

Precautions on Installation•Checkthestrengthandleveloftheinstallationgroundsothattheunitwillnotcauseanyoperatingvibrationornoiseafterinstalled.•Inaccordancewiththefoundationdrawing,fixtheunitsecurelybymeansofthefoundationbolts.(Prepare4setsofM8orM10foundationbolts,nutsandwasherseachwhichareavailableonthemarket.)

•Itisbesttoscrewinthefoundationboltsuntiltheirendsare3/4inch(20mm)fromthefoundationsurface.

3/4

inch

(2

0mm

)

Outdoor Unit Installation1. Installing outdoor unit

1) Wheninstallingtheoutdoorunit,referto“PrecautionsforSelectingtheLocation”andthe“OutdoorUnitInstallationDrawings”.2) Ifdrainworkisnecessary,followtheproceduresbelow.

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

additionalfootbasesofatleast1-1/4inch(30mm)inheightundertheoutdoorunit’sfeet.

3) Incoldareas,donotuseadrainhosewiththeoutdoorunit.(Otherwise,drainwatermayfreeze,impairingheatingperformance.)

Drain port

Bottom frame

Drain plug

Hose (available commercially,inner dia. 5/8 inch (16mm))

01_EN_3P300674-1.indd 5 10/6/2011 1:37:42 PM

6 ■English

Outdoor Unit Installation3. Flaring the pipe end

1) Cutthepipeendwithapipecutter.2) Removeburrswiththecutsurfacefacing

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

WARNING•Donotusemineraloilonflaredpart.•Preventmineraloilfromgettingintothesystemasthiswouldreducethelifetimeoftheunits.•Neverusepipingwhichhasbeenusedforpreviousinstallations.Onlyusepartswhicharedeliveredwiththeunit.•NeverinstalladriertothisR410Aunitinordertoguaranteeitslifetime.•Thedryingmaterialmaydissolveanddamagethesystem.•Incompleteflaringmaycauserefrigerantgasleakage.

4. Refrigerant piping

CAUTION•Usetheflarenutfixedtothemainunittopreventitfromcrackinganddeterioratingfromage.•Topreventgasleakage,applyrefrigerationoilonlytotheinnersurfaceoftheflare.(UserefrigerationoilforR410A.)•Usetorquewrencheswhentighteningtheflarenutstopreventdamagetotheflarenutsandgasleakage.

Flare nut tightening torque

Liquid side

1/4 inch (6.4mm)

10.4-12.7ft • lbf

(14.2-17.2N • m)

Gas side

3/8 inch (9.5mm)

24.1-29.4ft • Ibf

(32.7-39.9N • m)

Valve cap tightening torque

Liquid side

1/4 inch (6.4mm)

15.9-20.2ft • Ibf

(21.6-27.4N • m)

Gas side

3/8 inch (9.5mm)

15.9-20.2ft • Ibf

(21.6-27.4N • m)

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]• Align the centers of both flares and tighten the flare nuts 3 or 4 turns by hand. Then tighten them fully with the torque wrenches.

Service port cap tightening torque

7.9-10.8ft • lbf(10.8-14.7N • m)

(Cut exactly at right angles.) Remove burrs.

Set exactly at the position shown below.

A

Flaring

Die

Check

Flare’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 0-0.020 inch (0-0.5mm)

Clutch-type

Flare tool for R410A

0.039-0.059 inch (1.0-1.5mm)

Clutch-type (Rigid-type)

0.059-0.079 inch (1.5-2.0mm)

Wing-nut type (Imperial-type)

Conventional flare tool

01_EN_3P300674-1.indd 6 10/6/2011 1:37:42 PM

7■English

5. Purging air and checking gas leakage

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

•Whenpipingworkiscompleted,itisnecessarytopurgetheairandcheckforgasleakage.

•Ifusingadditionalrefrigerant,performairpurgingfromtherefrigerantpipesandindoorunitusingavacuumpump,thenchargeadditionalrefrigerant.

•Useahexagonalwrench(3/16inch(4mm))tooperatethestopvalverod.•Allrefrigerantpipejointsshouldbetightenedwithatorquewrenchatthespecifiedtighteningtorque.

1) Connectprojectionsideofcharginghose(whichcomesfromgaugemanifold)togasstopvalve’sserviceport.

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

3) Dovacuumpumpingandmakesurethatthecompoundpressuregaugereads–29.9inHg(–0.1MPa).*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 Upto49.2ft(15m) Morethan49.2ft(15m)

Runtime Notlessthan10min. Notlessthan15min

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

Gauge manifold

Compound pressure gauge

Pressure meter

Low-pressure valve

High-pressure valve

Charging hoses

Vacuum pump

Valve caps

Service port

Liquid stop valve

Gas stop valve

01_EN_3P300674-1.indd 7 10/6/2011 1:37:42 PM

8 ■English

Outdoor Unit Installation6. Refilling the refrigerant

Checkthetypeofrefrigeranttobeusedonthemachinenameplate.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.

7. Refrigerant piping work7-1 Caution on pipe handling

1) Protecttheopenendofthepipeagainstdustandmoisture.2) Allpipebendsshouldbeasgentleaspossible.Useapipebenderfor

bending.

7-2 Selection of copper and heat insulation materialsWhenusingcommercialcopperpipesandfittings,observethefollowing:1) Insulationmaterial:Polyethylenefoam

Heattransferrate:0.041to0.052W/mK(0.024to0.030Btu/fth°F(0.035to0.045kcal/mh°C))BesuretouseinsulationthatisdesignedforusewithHVACSystems.

2) Besuretoinsulateboththegasandliquidpipingandtoprovideinsulationdimensionsasbelow.

Gasside LiquidsideGaspipethermal

insulationLiquidpipethermal

insulationO.D.3/8inch(9.5mm)

O.D.1/4inch(6.4mm)

I.D.15/32-19/32inch(12-15mm)

I.D.5/16-13/32inch(8-10mm)

Minimumbendradius Thickness13/32inch(10mm)Min.1-3/16inch(30mm)ormore

Thickness0.031inch(0.8mm)(C1220T-O)

•Useseparatethermalinsulationpipesforgasandliquidrefrigerantpipes.

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

Gas pipeLiquid pipe

Gas pipe insulation

Liquid pipe insulation

Finishing tape Drain hose

Inter-unit wire

01_EN_3P300674-1.indd 8 10/6/2011 1:37:43 PM

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,closetheliquidstopvalvewitha

hexagonalwrench.4) After2to3minutes,closethegasstopvalveandstopforced

coolingoperation.

Forced cooling operation

■ Using the indoor unit ON/OFF switch

PresstheindoorunitON/OFFswitchforatleast5seconds.(Theoperationwillstart.)• Forcedcoolingoperationwillstopautomaticallyafteraround15minutes.

Tostoptheoperation,presstheindoorunitON/OFFswitch.

■ Using the indoor unit’s remote controller

1) Press“MODE”buttonandselectthecoolingmode.2) Press“ON/OFF”buttontoturnonthesystem.3) Pressbothof“TEMP”buttonand“MODE”buttonatthesametime.4) Press“MODE”buttontwice.( willbedisplayedandtheunitwillenterforcedcoolingoperation.)• Forcedcoolingoperationwillstopautomaticallyafteraround30minutes.

Tostoptheoperaion,press“ON/OFF”button.

■ Using the outdoor unit forced cooling operation switch

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

Tostoptheoperation,presstheswitch(SW1).

Wiring WARNING

•Donotusetappedwires,strandedwires,extensioncords,orstarburstconnections,astheymaycauseoverheating,electricalshock,orfire.•Donotuselocallypurchasedelectricalpartsinsidetheproduct.(Donotbranchthepowerforthedrainpump,etc.,fromtheterminalblock.)Doingsomaycauseelectricshockorfire.

•Besuretoinstallagroundfaultcircuitinterrupterbreaker.(Onethatcanhandlehigherharmonics.)(Thisunitusesaninverter,whichmeansthatitmustbeusedagroundfaultcircuitinterrupterbreakercapablehandlingharmonicsinordertopreventmalfunctioningofthegroundfaultcircuitinterrupterbreakeritself.)

•Useanall-poledisconnectiontypebreakerwithatleast1/8inch(3mm)betweenthecontactpointgaps.•Whencarryingoutwiringconnection,takecarenottopullattheconduit.•Donotconnectthepowerwiretotheindoorunit.Doingsomaycauseelectricshockorfire.

•Donotturnonthesafetybreakeruntilallworkiscompleted.

1) Striptheinsulationfromthewire(3/4inch(20mm)).

2) Connecttheconnectionwiresbetweentheindoorandoutdoorunitssothattheterminalnumbersmatch.Tightentheterminalscrewssecurely.Werecommendaflatheadscrewdriverbeusedtotightenthescrews.

Gas stop valve Valve cap

Hexagonal wrench

Close

Liquid stop valve

Service port

1 2 3

PushScrewdriver

Power supplyterminal block

Forced cooling operation switch(SW1)

123

1 2 3 L1L2GR

Safety breaker 15A

Ground faultcircuit interrupter

Ground

Use AWG16 if the connection wire length is less than 32.8ft (10m), or AWG14 if it is 32.8ft (10m) or more.

Outdoor unit

Indoor unit

Power supply60Hz 208-230V

Use AWG 14 wires.

01_EN_3P300674-1.indd 9 10/6/2011 1:37:43 PM

10 ■English

Wiring<Methodofmountingconduit>

1) Passwiresthroughtheconduitandsecurethemwithalocknut.2) Aftercompletingthework,reattachtheconduitmountingcoverandtheprotectionplatetoitsoriginalposition.

1 2 3

1 2 3 Power supplyterminal block

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

Use the specified wire type and connect it securely.

Conduit mounting plate

Conduit1/2 inch (21.3mm)

Lock nut

Observethenotesmentionedfollowingwhenwiringtothepowersupplyterminalblock.Precautionstobetakenforpowersupplywiring.

CAUTION•Whenconnectingtheconnectionwirestotheterminalblockusingasinglecorewire,besuretoperformcurling.Problemswiththeworkmaycauseheatandfires.

Strip wire end to this point.

Excessive strip length may cause electrical shock or leakage.

Good Wrong

•Ifthestrandedwiresmustbeused,makesuretousetheroundcrimp-styleterminalforconnectiontothepowersupplyterminalblock.Placetheroundcrimp-styleterminalsonthewiresuptothecoveredpartandsecureinplace.

Stranded wire

Round crimp-styleterminal

3) Pullthewireandmakesurethatitdoesnotdisconnect.Thenfixthewireinplacewithawirestop.

Stripping wire at terminal block

Good Wrong

01_EN_3P300674-1.indd 10 10/6/2011 1:37:44 PM

11■English

Facility Setting (cooling at low outdoor temperature)This function is designed for facilities such as equipment or computer rooms. It is never to be used in a residence or office where people occupy the space.

■ Cuttingjumper4(J4)onthecircuitboardwillexpandtheoperationrangedownto14°F(–10°C).Howeveritwillstopiftheoutdoortemperaturedropsbelow–0.4°F(–18°C)andstartbackuponcethetemperaturerisesagain.

1 2 3

S70

S40

S2S90

J5J4J3

Cut J4 with nippers or a similar tools.

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

•Cuttingjumper4(J4)setstheindoorfantaptothehighestposition.Notifytheuseraboutthis.

01_EN_3P300674-1.indd 11 10/6/2011 1:37:44 PM

12 ■English

Trial Operation and Testing1. Trial operation and testing

1-1Measurethesupplyvoltageandmakesurethatitfallsinthespecifiedrange.

1-2Trialoperationshouldbecarriedoutineithercoolingorheatingmode.

•Incoolingmode,selectthelowestprogrammabletemperature;inheatingmode,selectthehighestprogrammabletemperature.1) Trialoperationmaybedisabledineithermodedependingontheroomtemperature.2) Aftertrialoperationiscomplete,setthetemperaturetoanormallevel(78°Fto82°F(26°Cto28°C)incoolingmode,

68°Fto75°F(20°Cto24°C)inheatingmode).3) Forprotection,thesystemdisablesrestartoperationfor3minutesafteritisturnedoff.

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

•Ifthecircuitbreakertripstoshutoffthepowertotheairconditioner,thesystemwillrestoretheoriginaloperationmodewhenthecircuitbreakerisopenedagain.

2. Test itemsTestitems Symptom Check

Indoorandoutdoorunitsareinstalledproperlyonsolidbases. Fall,vibration,noise

Norefrigerantgasleaks.Incompletecooling/heatingfunction

Refrigerantgasandliquidpipesandindoordrainhoseextensionarethermallyinsulated.

Waterleakage

Draininglineisproperlyinstalled. Waterleakage

Systemisproperlygrounded. Electricalleakage

Thespecifiedwiresareusedforinter-unitwiring. Inoperativeorburndamage

Indoororoutdoorunit’sairinletorairoutlethasclearpathofair.Stopvalvesareopened.

Incompletecooling/heatingfunction

Indoorunitproperlyreceivesremotecontrolcommands. Inoperative

01_EN_3P300674-1.indd 12 10/6/2011 1:37:44 PM

3P300674-1 M11B134 (1111) HT

Two-dimensional bar code is a code for manufacturing.

00_CV_3P300674-1.indd 2 10/18/2011 10:38:27 AM