DAIKIN ROOM AIR CONDITIONER

INSTALLATION MANUALR410A Split Series

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lish

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MODELS

FTXS15LVJUFTXS18LVJUFTXS24LVJU

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Safety Precautions•ReadtheseSafetyPrecautionscarefullytoensurecorrectinstallation.•ThismanualclassifiestheprecautionsintoDANGER,WARNINGandCAUTION.Besuretofollowalltheprecau-tionsbelow: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.Givetheuseradequateinstructionscon-cerningtheuseandcleaningoftheunitaccordingtotheOperationManual.

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.

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

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

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Safety Precautions WARNING

•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.

•ElectricalworkmustbeperformedinaccordancewiththeNEC/CECbyauthorizedpersonnelonly.

AccessoriesIndoor unit A – M ,

Mountingplate 1 Remotecontrollerholder 1 Tube 1

Mountingplatefixingscrew3/16”×1”(M4×25mm)

9 Fixingscrewforremotecontroller

holder1/8”×13/16”(M3×20mm)2 Operationmanual 1

Titaniumapatitephotocatalyticair-purifyingfilter

2 DrybatteryAAA.LR03

(alkaline)2 Installationmanual 1

Wirelessremotecontroller 1 Indoorunitfixingscrew

3/16”×1/2”(M4×12mm)2 Screwcover 3

Choosing an Installation Site•Beforechoosingtheinstallationsite,obtainuserapproval.

1. Indoor unit•Theindoorunitshouldbesitedinaplacewhere:1)therestrictionsoninstallationspecifiedintheindoorunitinstallationdrawingsaremet,2)bothairinletandairoutlethaveclearpathsmet,3)theunitisnotinthepathofdirectsunlight,4)theunitisawayfromthesourceofheatorsteam,5)thereisnosourceofmachineoilvapour(thismayshortenindoorunitlife),6)cool(warm)airiscirculatedthroughouttheroom,7)theunitisawayfromelectronicignitiontypefluorescentlamps(inverterorrapidstarttype)astheymayshortenthe

remotecontrollerrange,8)theunitisatleast3.5ft(1m)awayfromanytelevisionorradioset(unitmaycauseinterferencewiththepictureorsound),9)installattherecommendedheight6ft(1.8m),10)nolaundryequipmentislocatedinthespace.

2. Wireless remote controller1)Turnonallthefluorescentlampsintheroom,ifany,andfindthesitewhereremotecontrolsignalsareproperly

receivedbytheindoorunit(within23ft/7m).

A E J

B FK

C GL

DH

M

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Indoor Unit Installation Drawings

Before screwing the remote controller holder to the wall, make sure that control signals are properly received by indoor unit.

E Remote controller holder

Fixing screw for remote controller holder 1/8” × 13/16” (M3 × 20mm)

F

D Wireless remote controller

Service lidOpening service lidService lid is opening/closing type.Opening method

1) Remove the service lid screw.2) Pull out the service lid diagonally

down in the direction of the arrow.3) Pull down.

INTELLIGENT EYE sensor

1-3/16” (30mm) or more from ceiling

Front panel

1-15/16” (50mm)or more from walls(on both sides)

Titanium apatite photocatalytic air purifying filter (2 pcs)

A Mounting plate

C

Air filters

Mounting plate fixing screw 3/16” × 1” (M4 × 25mm)

B

Titanium apatite photocatalytic air purifying filter

Filter frame

Air filter

Tab

3/16” × 5/8”(M4 × 16mm)

Screw cover (3 pcs)M Wrap the thermal insulation pipe with the finishing tape from bottom to top.

Cut thermal insulation pipe to an appropriate length and wrap it with tape, making sure that no gap is left in the insulation pipe’s cut line.

Caulk pipe hole gap with putty.

The mounting plate should be installed on a wall which can support the weight of the indoor unit.

How to attach the indoor unitHook the claws of the bottom frameto the mounting plate.If the claws are difficult to hook,remove the front grille.

How to remove the indoor unitPush up the marked area (at thelower part of the front grille) torelease the claws. If it is difficult torelease, remove the front grille.

Front grille

A Mountingplate

Clip

Bottom frame

Mark (rear side)

INTELLIGENT EYE sensor

CAUTION•DonothitorforcefullypushtheINTELLIGENTEYEsensor.Thiscanleadtodamageandmalfunction.•Donotplacelargeobjectsnearthesensor.Alsokeepheatingunitsorhumidifiersoutsidethesensor’sdetectionarea.

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Preparation before Installation1. Removing and installing front panel

•Removal methodHookfingersonthetabsontheleftandrightofthemainbody,andopenuntilthepanelstops.Slidethefrontpanelsidewaystodisengagetherotatingshaft.Thenpullthefrontpaneltowardyoutoremoveit.

•Installation methodAlignthetabsofthefrontpanelwiththegrooves,andpushallthewayin.Thencloseslowly.Pushthecenterofthelowersurfaceofthepanelfirmlytoengagethetabs.

Push the rotating shaft of the front panel into the groove.

2. Removing and installing front grille•Removal method1)Removefrontpaneltoremovetheairfilter.2)Remove6screwsfromthefrontgrille.3)Infrontofthe markofthefrontgrille,thereare3upperhooks.

Lightlypullthefrontgrilletowardyouwithonehand,andpushdownonthehookswiththefingersofyourotherhand.

mark area (3 locations)

Upper hook

Pushdown.

Upper hook

When there is no work space because the unit is close to ceiling

CAUTION•Besuretowearprotectiongloves.

Placebothhandsunderthecenterofthefrontgrille,andwhilepushingup,pullittowardyou.

•Installation method1)Installthefrontgrilleandfirmlyengagetheupperhooks(3locations).2)Install6screwsofthefrontgrille.3)Installtheairfilterandthenmountthefrontpanel.

2) Pull toward you.

1) Push up.

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3. How to set the different addressesWhen2indoorunitsareinstalledinoneroom,the2wirelessremotecontrollerscanbesetfordifferentaddresses.1)Removethemetalplateelectricalwiring

cover.(RefertotheWhen connecting to an HA system.)

2)Cuttheaddressjumper(JA)ontheprintedcircuitboard.

3)Cuttheaddressjumper(JA)intheremotecontroller.

ADDR

ESS

JA

ADDRESSJAEXIST 1CUT 2

Jumper

ADDRESS:JAEXIST 1CUT 2

4. When connecting to an HA system (wired remote controller, central remote controller etc.)1)Removethefrontgrille.(6screws)2)Removetheelectricalwiringbox.(1screw)3)Removethemetalplateelectricalwiringcover.(4tabs)4)AttachtheconnectioncordtotheS21connectorandpulltheharnessoutthroughthenotchedpartinthefigure.5)Replacetheelectricalwiringcoverasitwas,andpulltheharnessaround,asshowninthefigure.

3) Remove the metal plate electrical wiring cover.

4) Attach the connection cord to the S21 connector and pull the harness out through the notched part in the figure.

5) Replace the electrical wiring cover as it was, and pull the harness around, as shown in the figure.

Screw

PullPull

Slide

Tab

Tab

Slide

Metal plate electrical cover

Main body

HA connector(S21)

HA connector(S21)

Lay the HA cord as shown in the figure.

Refrigerant Piping WorkWith a multi indoor unit , install as described in the installation manual supplied with the Multi outdoor unit.

1. Flaring the pipe end 1)Cutthepipeendwithapipecutter.2)Removeburrswiththecutsurfacefacingdownwardso

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

Set exactly at the position shown below.

A

Flaring

Die 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

(Cut exactly at right angles.) Remove burrs.

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.

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

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Refrigerant Piping Work2. Refrigerant piping

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

Alignthecentersofbothflaresandtightentheflarenuts3or4turnsbyhand.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]

Torque wrench

Piping union

Flare nut

Spanner

[Tighten]

Flare nut tightening torqueGas side

Liquid side

1/4 inch (6.4mm)

45.6-55.6ft • lbf(61.8-75.4N • m)

10.4-12.7ft • lbf(14.2-17.2N • m)

5/8 inch (15.9mm)

36.5-44.5ft • lbf(49.5-60.3N • m)

1/2 inch (12.7mm)

15,18 class 24 class

2-1. Caution on piping handling 1)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

2-2. Selection of copper and heat insulation materials•Whenusingcommercialcopperpipesandfittings,observethefollowing:1)Insulationmaterial:Polyethylenefoam

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

Gas pipeLiquid pipe

Gas pipe insulation

Liquid pipe insulation

Finishing tape Drain hose

Inter-unit wire

2)Besuretoinsulateboththegasandliquidpipingandtoprovideinsulationdimensionsasbelow.

GassideLiquidside

Gaspipethermalinsulation Liquidpipethermalinsulation15,18class 24class 15,18class 24class

O.D.1/2inch(12.7mm)

O.D.5/8inch(15.9mm)

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

I.D.9/16-5/8inch(14-16mm)

I.D.5/8-25/32inch(16-20mm)

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

Minimumbendradius Thickness13/32inch(10mm)Min.

1-9/16inch(40mm)ormore1-3/16inch(30mm)ormore

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

3)Useseparatethermalinsulationpipesforgasandliquidrefrigerantpipes.

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Indoor Unit Installation1. Installing the mounting plate

•Themountingplateshouldbeinstalledonawallwhichcansupporttheweightoftheindoorunit.1)Temporarilysecurethemountingplatetothewall,makesurethattheplateiscompletelylevel,andmarktheboring

pointsonthewall.2)Securethemountingplatetothewallwithscrews.

Recommended mounting plate retention spots and dimensions

Keep here the piece cut out from the unit for piping

Through-the-wall hole ϕ3-1/8 (ϕ80)

Recommended mounting plate retention spots (9 spots in all)

(Bolt size : 3/8 (M10))

(Bolt size : 3/8 (M10))

Place a leveler on raised tab.

Gas pipe end Liquid pipe end

4-11/16(119)

41-5/16 (1050)

2-9/16(65)

1-3/

4(4

5)

13-3

/8 (

340)

5-7/8(149)

1-3/

4(4

5)

7-3/16 (182.5)3-1/2(89)

2-9/16(65)

15-1/4 (388)

2-1/

16(5

3)7-

1/2

(190

)

* The removed pipe port cover can be kept in the mounting plate pocket.

Removed pipe port cover

A Mounting plate

ϕ3-1/8(ϕ80)

ϕ3-1/8(ϕ80)

Drain hose position

5-1/4 (134)

unit : inch (mm)

Use tape measure as shown.Position the end of tape measure at

∆

2. Boring a wall hole and installing wall embedded pipe•Forwallscontainingmetalframeormetalboard,besuretouseawallembeddedpipeandwallcoverinthefeed-throughholetopreventpossibleheat,electricalshock,orfire.

•Besuretocaulkthegapsaroundthepipeswithcaulkingmaterialtopreventwaterleakage.1)Boreafeed-throughholeof3-1/8inch(80mm)inthewallsoithasa

downslopetowardtheoutside.2)Insertawallpipeintothehole.3)Insertawallcoverintowallpipe.4)Aftercompletingrefrigerantpiping,wiring,anddrainpiping,caulkpipe

holegapwithputty.

Inside Outside

Caulking

Wall embedded pipe (field supply)

Wall hole cover(field supply)

Wall embedded pipe (field supply)

ϕ3-1/8” (ϕ80mm)

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Indoor Unit Installation3. Laying piping, hoses, and wiring

3-1. Right-side, right-back, or right-bottom piping 1)Attachthedrainhosetotheundersideoftherefrigerantpipeswith

anadhesivevinyltape.2)Wraptherefrigerantpipesanddrainhosetogetherwithinsulation

tape.

Right-bottom piping

Right-side piping

Right-back piping

Bind refrigerant pipe and drain hose together with insulating tape.

Remove pipe port cover here for right-side piping.

Remove pipe port cover here for right-bottom piping.

3)Passthedrainhoseandrefrigerantpipesthroughthewallhole,thensettheindoorunitonthemountingplatehooksbyusingthe markingsatthetopoftheindoorunitasaguide.

Mounting plateA

3-2. Left-side, left-back, or left-bottom piping1)Replacethedrainpluganddrainhose.2)Attachthedrainhosetotheundersideoftherefrigerantpipes

withadhesivevinyltape.

Remove pipe port cover here for left-bottom piping.

Remove pipe port cover here for left-side piping.

Left-bottom piping

Left-side piping

Left-back piping

3)Besuretoconnectthedrainhosetothedrainportinplaceofadrainplug.

How to set drain plug.

No gap.Do not apply lubricating oil (refrigeration oil) when inserting.Application of causes deterioration and drain leakage of the plug.

Insert a hexagonal wrench 3/16” (4mm).

4)Shapetherefrigerantpipesalongthepipepathmarkingonthemountingplate.

5)Passdrainhoseandrefrigerantpipesthroughthewallhole,thensettheindoorunitonmountingplatehooks,usingthe markingsatthetopofindoorunitasaguide.

6)Pullintheinter-unitwire.7)Connecttheinter-unitpipes.

Drain hose

Caulk this hole with putty or caulking material. Bind with vinyl

tape.

A Mounting plate

Wrap insulating tape around the bent portion of refrigerant pipes. Overlap at least half the width of the tape with each turn.

8)Wraptherefrigerantpipesanddrainhosetogetherwithinsulationtapeasrightfigure,incaseofsettingthedrainhosethroughthebackoftheindoorunit.

9)Whileexercisingcaresothattheinter-unitwiredonotcatchindoorunit,pressthebottomedgeofindoorunitwithbothhandsuntilitisfirmlycaughtbythemountingplatehooks.Secureindoorunittothemountingplatewithindoorunitfixingscrews3/16×1/2inch(M4×12mm).

Refrigerantpipes

Drain hose

Bottom frameH Indoor unit fixing screw 3/16” × 1/2” (M4 × 12mm) (2 locations)

Mountingplate

AInter-unit wire

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3-3. Wall embedded piping•Insertthedrainhosetothisdepthsoitwon’tbepulledoutofthedrainpipe. Inner wall

Vinyl chloride drain pipe (VP-30)

Drain hose1-15/16” (50mm) or more

Insert the drain hose to this depth so it won’t be pulled out of drain pipe.

Outer wall

4. Wiring

With a multi indoor unit , install as described in the installation manual supplied with the Multi outdoor unit.

1)Asshownintheillustrationontheright-handside,insertthewiresincludingthegroundwireintotheconduitandsecurethemwithlocknutontotheconduitmountingplate.

2)Insertthewiresincludingthegroundwireintotube.3)Stripwireends(9/16inch(15mm)).4)Matchwirecolorswithterminalnumbersonindoorand

outdoorunit’sterminalblocksandfirmlyscrewwirestothecorrespondingterminals.

5)Connectthegroundwirestothecorrespondingterminals.6)Pullthewiresandcheckthatthewiresaresecurelyfixed

totheterminalblock.7)Incaseofconnectingtoanadaptersystem,runthe

remotecontrollercableandattachtheS21.(RefertoP5whenconnectingtoanHAsystem.)

8)Shapethewiressothattheservicelidfitssecurely,thencloseservicelid.

123

1 2 3 GRL1L2

Conduit mounting plate

Lock nut

Back

Conduit

Terminal block

Electrical component box

Use the specified wire type.

Wire retainer

Shape wires so that the service lid will fit securely.

TubeJ

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

Use AWG 14 wires.

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

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

•Whencarryingoutwiringconnection,takecarenottopullattheconduit.•Donotconnectthepowerwiretotheindoorunit.Doingsomaycauseelectricshockorfire.

J

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Indoor Unit Installation5. Drain piping

1)Connectthedrainhose,asdescribedright.

The drain hose should be inclined downward.

No trap is permitted.

Do not put the end of the hose in water.

2)Removetheairfiltersandpoursomewaterintothedrainpantocheckthewaterflowssmoothly.

3)Whendrainhoserequiresextension,obtainanextensionhosecommerciallyavailable.Besuretothermallyinsulatetheindoorsectionoftheextensionhose.

Indoor unit drain hose ϕ5

/8” (ϕ1

6mm

)

Extension drain hose

Heat insulation tube(field supply)

4)Whenconnectingarigidpolyvinylchloridepipe(nominaldiameter1/2inch(13mm))directlytothedrainhoseattachedtotheindoorunitaswithembeddedpipingwork,useanycommerciallyavailabledrainsocket(nominaldiameter1/2inch(13mm))asajoint.

Drain hose supplied with the indoor unit

Commercially available drain socket (nominal diameter 1/2 inch (13mm))

Commercially available rigid polyvinyl chloride pipe(nominal diameter 1/2 inch (13mm))

ϕ5/8

” (ϕ1

6mm

)

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Trial Operation and Testing1. Trial operation and testing

1-1 Measurethesupplyvoltageandmakesurethatitfallsinthespecifiedrange.

1-2 Trialoperationshouldbecarriedoutineithercoolingorheatingmode.

•Incoolingmode,selectthelowestprogrammabletemperature;inheatingmode,selectthehighestprogrammabletemperature.1)Trialoperationmaybedisabledineithermodedependingontheroomtemperature.

Usetheremotecontrollerfortrialoperationasdescribedbelow.2)Aftertrialoperationiscomplete,setthetemperaturetoanormallevel(78°Fto82°F(26°Cto28°C)incoolingmode,

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

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

•Ifthecircuitbreakertripstoshutoffthepowertotheairconditioner,thesystemwillrestoretheoriginaloperationmodewhenthecircuitbreakerisopenedagain.

Trial operation from remote controller1)Press“ON/OFF”buttontoturnonthesystem.2)Press“TEMP”button(2locations)and“MODE”buttonatthesametime.3)Press“MODE”buttontwice.

(“T”willappearonthedisplaytoindicatethattrialoperationmodeisselected.)4)Trialoperationterminatesinapprox.30minutesandswitchesintonormalmode.Toquitatrialoperation,press“ON/

OFF”button.

2. Test items

TestitemsSymptom

(diagnosticdisplayonRC)Check

Indoorandoutdoorunitsareinstalledproperlyonsolidbases. Fall,vibration,noise

Norefrigerantgasleaks.Incompletecooling/heatingfunction

Refrigerantgasandliquidpipesandindoordrainhoseextensionarethermallyinsulated.

Waterleakage

Draininglineisproperlyinstalled. Waterleakage

Systemisproperlygrounded. Electricalleakage

Thespecifiedwiresareusedforinter-unitwiring. Inoperativeorburndamage

Indoororoutdoorunit’sairinletorairoutlethasclearpathofair.Stopvalvesareopened.

Incompletecooling/heatingfunction

Indoorunitproperlyreceivesremotecontrolcommands. Inoperative

TheheatpumporcoolingonlymodeisselectablewiththeDIPswitchoftheremotecontroller.

Remotecontrollermalfunction-ing

01_EN_3P297301-2.indd 11 10/18/2011 2:00:52 PM

12 ■English

MEMO

01_EN_3P297301-2.indd 12 10/18/2011 2:00:52 PM

Two-dimensional bar code is a code for manufacturing.

3P297301-2 M11B120 (1111) HT

00_CV_3P297301-2.indd 2 10/18/2011 10:19:50 AM