DAIKIN ROOM AIR CONDITIONER

INSTALLATION MANUALR410A Split Series

Installation manualManuel dinstallation

Manual de instalación

Eng

lish

Fran

çais

Esp

añol

MODELS

FDXS09LVJUFDXS12LVJU

CDXS15LVJUCDXS18LVJUCDXS24LVJU

Manuel dinstallation

00_CV_3P297301-3C.indd 1 10/26/2012 11:23:56 AM

Eng

lish

■English 1

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. Besuretoestablishanearthconnection. 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.Useofotherpartsmaycausetheunittocometolose,waterleakage,electricalshock,fireorequipmentdamage.

•Installtheairconditioneronasolidbasethatislevelandcansupporttheweightoftheunit.Aninadequatebaseorincompleteinstallationmaycauseinjuryorequipmentdamageintheeventtheunitfallsoffthebaseorcomesloose.

•Electricalworkshallbecarriedoutinaccordancewiththeinstallationmanualandthenational,stateandlocalelectricalwiringcodes.Insufficientcapacityorincompleteelectricalworkmaycauseelectricalshock,fireorequipmentdamage.

•Besuretouseadedicatedpowercircuit.Neveruseapowersupplysharedbyanotherappliance.Followallappropriateelectricalcodes.

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

•Usethespecifiedtypesofwiresforelectricalconnectionsbetweentheindoorandoutdoorunits.Followallstateandlocalelectricalcodes.Firmlyclamptheinterconnectingwiressotheirterminalsreceivenoexternalstresses.Incompleteconnectionsorclampingmaycauseterminaloverheating,fireorequipmentdamage.

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Safety Precautions WARNING

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

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

•Duringpump-down,stopthecompressorbeforeremovingtherefrigerantpiping.Ifthecompressorisstillrunningandtheshut-offvalveisopenduringpump-down,airwillbesuckedinwhentherefrigerantpipingisremoved,causingabnormallyhighpressurewhichcouldleadtoequipmentdamageorandpersonalinjury.

•Duringinstallation,attachtherefrigerantpipingsecurelybeforerunningthecompressor.Iftherefrigerantpipesarenotattachedandtheshut-offvalveisopenwhenthecompressorisrun,airwillbesuckedin,causingabnormalpressureintherefrigerationcycle,whichmayresultinequipmentdamageandeveninjury.

•Installaleakcircuitbreaker,asrequired.Ifaleakcircuitbreakerisnotinstalled,electricshockmayresult.

•Besuretoinstallagroundfaultcircuitinterrupterbreaker.Failuretoinstallagroundfaultcircuitinterrupterbreakermayresultinelectricallyshocksorpersonalinjury.

CAUTION•Establishdrainpipingaccordingtotheinstructionsofthismanual.Inadequatepipingmaycausewaterdamage.

•Noteforinstallingtheoutdoorunit.(Forheatpumpmodelonly.)Inregionsofthecountrywheretheoutsidetemperatureisatorbelowthefreezingpoint,thedrainmayfreeze.Ifso,itisrecommendedthatanelectricheaterbeinstalledinordertoprotectthedrainfromfreezing.

•Tightentheflarenutaccordingtothespecifiedtorque.Atorquewrenchshouldbeused.Iftheflarenutistightenedtoomuch,theflarenutmaycrackovertimeandcauserefrigerantleakage.

•Donottouchtheheatexchangerfins.Improperhandlingmayresultininjury.

•Beverycarefulaboutproducttransportation.SomeproductsusePPbandsforpackaging.DonotuseanyPPbandsforameansoftransportation.Itisdangerous.

Accessories

Wireless remote

controller

1 pc.

Screws for conduit

mounting plate

2 pcs.

Insulation tube

1 pc.

Dry battery AAA. LR03 (alkaline)

Mounting frame Screws

M4 × 25

Decorative cover

Remote controller

holder

1 pc.1 pc. 1 pc.

Receiver kitAir filter

1 set 1 pc. 2 pcs.

2 pcs.

Clamp metal

1 pc. 1 pc.

Insulation for fitting

1 each

Sealing pad

Large and small

1 each

for gas pipe

for liquid pipe One is spare

Large

Small24 pcs.4 pcs.

Washer for hanger bracket

8 pcs. 2 pcs. 6 pcs. 1 set

Drain hose Sealingmaterial

Clamp Washer fixing plate

1 set

Screws for duct flanges

Stored in outlet vent

1 pc.

Hanger (right)

insulation

[ Other ] • Operation manual • Installation manual

1 pc.

Conduit mounting

plate

3 pcs. (only for CDXS)

2 large

1 small

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■English 3

Choosing an Installation Site•Beforechoosingtheinstallationsite,obtainuserapproval.

1. Indoor unit

CAUTION•Whenmovingtheunitduringorafterunpacking,makesuretoliftitbyholdingitsliftinglugs.Donotexertanypressureonotherparts,especiallytherefrigerantpiping,drainpipingandflangeparts.Wearprotectivegear(suchasgloves)wheninstallingtheunit.

•Ifyouthinkthehumidityinsidetheceilingmightexceed86°F(30°C)andRH80%,reinforcetheinsulationontheunitbody.Useglasswoolorpolyethylenefoamasinsulationsothatthethicknessismorethan0.4in(10mm)andfitsinsidetheceilingopening.

•Optimumairdistributionisensured.•Theairpassageisnotblocked.•Condensatecandrainproperly.•Theceilingisstrongenoughtobeartheweightoftheindoorunit.•Afalseceilingdoesnotseemtobeatanincline.•Sufficientclearanceformaintenanceandservicingisensured.•Pipingbetweentheindoorandoutdoorunitsiswithintheallowablelimits.(Refertotheinstallationmanualfortheoutdoorunit.)

•Theindoorunit,outdoorunit,powersupplywiringandtransmissionwiringisatleast3.3ft(1m)awayfromtelevisionsandradios.Thispreventsimageinterfer-enceandnoiseinelectricalappliances.(Noisemaybegenerateddependingontheconditionsunderwhichtheelectricwaveisgenerated,evenifa3.3ft(1m)allowanceismaintained.)

■Use suspension bolts to install the unit. Check whether or not the ceiling is strong enough to support the weight of the unit. If there is a risk that the ceiling is not strong enough, reinforce the ceiling before installing the unit.(Installationpitchismarkedonthecartonboxforinstallation.Refertoittocheckforpointsrequiringreinforcing.)Selectthe*Hdimensionsuchthatadownwardslopeofatleast1/100isensuredasindicatedin“Drain Piping Work”.•Theinstallationpitchislistedonthepackingmaterial,andshouldbecheckedwhendecidingwhethertoreinforcethelocationornot.

Control box Maintenancespace

12 (300)or more

13/16 (20) or more

100

(250

0)

or m

ore

*H=

9-1/

2 (2

40)

or m

ore

7-7/

8 (2

00)

Ceiling

Floor surface

(unit : in (mm))

If th

ere

is

no c

eilin

g

■ Select the signal receiver mounting location according to the following conditions:•Installthesignalreceiver,whichhasabuilt-intemperaturesensor,neartheintakeventwherethereisconvectionofairanditcangetanaccuratereadingoftheroom’stemperature.If theintakeventisinanotherroomortheunitcannotbeinstalledneartheintakeventforanyotherreason,installit5ft(1.5m)abovetheflooronawallwherethereisconvection.

•Inordertogetanaccuratereadingoftheroom’stemperature,installthesignalreceiverinalocationwhereitisnotexposeddirectlytocoldorhotairfromtheairdischargegrilleortodirectsunlight.

•Sincethereceiverhasabuilt-inlightreceptortoreceivesignalsfromthewirelessremotecontroller,donotmountitinalocationwherethesignalmaybeblockedbyacurtain,etc.

Air outlet grille: Wooden or plastic grille is recommended because condensation may occur depending on humidity conditions.

CAUTIONIfthesignalreceiverisnotinstalledinalocationwherethereisconvectionofair,itmaybeunabletogetanaccuratereadingoftheroom’stemperature.

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Choosing an Installation Site2. Wireless remote controller

•Turnonallthefluorescentlampsintheroom,ifany,andfindthesitewhereremotecontrollersignalsareproperlyreceivedbytheindoorunit(within13ft(4m)).

3. Outdoor unit•Foroutdoorunitinstallation,seetheinstallationmanualsuppliedwiththeoutdoorunit.

Preparations before Installation ■Relation of the unit to the suspension bolt positions. •Installtheinspectionopeningonthecontrolboxsidewheremaintenanceandinspectionofthecontrolboxareeasy.Installtheinspectionopeningalsointhelowerpartoftheunit.

■Make sure the range of the unit’s external static pres-sure is not exceeded.(Seethetechnicaldocumentationfortherangeoftheexternalstaticpressuresetting.)

■Open the installation hole. (Pre-set ceilings)•Oncetheinstallationholeisopenedintheceilingwheretheunitistobeinstalled,passrefrigerantpiping,drainpiping,transmis-sionwiring,andremotecontrollerwiring(unneededifusingawirelessremotecontroller)totheunit’spipingandwiringholes.See“Refrigerant Piping Work”,“Drain Piping Work”,and“Wiring”.

•Afteropeningtheceilinghole,makesureceilingislevelifneeded.Itmightbenecessarytoreinforcetheceilingframetopreventshaking.Consultanarchitectorcarpenterfordetails.

■ Install the suspension bolts.(UseW3/8toM10suspensionbolts.)•Useahole-in-anchor,sunkeninsert,sunkenanchorforexistingceilings,andasunkeninsert,sunkenanchororotherparttobeprocuredinthefieldtoreinforcetheceilingtobearingtheweightoftheunit.(RefertoFig.)

19-11/16 (500)

17-3/4 (450)

(Inspection opening size)

Air outlet

Suspensionbolt pitch

(unit : in (mm))

Air inlet

Control box

(Sus

pens

ion

bolt

pitc

h)

Ceiling

24-7/16 (620)

24-7/16 (620)

A

Arrow view Inspection door

(Ceiling opening)

<SERVICE SPACE>

A B

FDXS09/12 CDXS15/18A 27-9/16 (700)B 29-1/8 (740) 37 (940)

35-7/16 (900)CDXS24

44-7/8 (1140)43-5/16 (1000)

Note: All the above parts are field supplied.

Suspension bolt

Long nut or turn-buckle

Anchor bolt

Indoor unit

Ceiling slab

■Mount chamber cover and air filter (acces-sory).Forbottomintake,replacethechambercoverandtheprotectionnetintheprocedurelistedinFig.(1)Removetheprotectionnet.(6locations)

Removethechambercover.(7locations)(2)Reattachtheremovedchambercoverinthe

orientationshowninFig.(7locations)ReattachtheremovedprotectionnetintheorientationshowninFig.(6locations)RefertoFig.forthedirectionoftheprotectionnet.

Air inlet

Air inlet

(1)

Chamber cover

(2)

Air outletAir outlet

Chamber cover

Protection net

Protection net

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■English 5

(3)Attachsealingpadasshownintherightfigure.(Storedinoutletvent)(onlyforCDXS)(Inordertotakeintheairinsidetheceiling,andwhennottakinginairfromoutdoorair,itisnotnecessarytostick.)•Attachthesealingpad(accessory)totheplatemetalsectionswhicharenotcoveredbyanti-sweatmaterial.

•Makesuretherearenogapsbetweenthedifferentpiecesofsealingpad.

Air inlet

(3)

Air outlet Air outlet

Air inlet

Anti-sweat material included with the product

Anti-sweat material included with the product

Sealing pad (Small)

For rear intake type

Sealing pad (Large)

Sealing pad (Small)(accessory) (accessory)

Sealing pad (Large)

(accessory) (accessory)

For bottom intake type

(4)Attachthehanger(right)insulationtotherighthanger.(Storedinoutletvent)(Seethebelowfigureforthestickingbaseline.)

Hanger (right) insulation(accessory)

SlitStick

ing base line

Hanger bracket (right)

Arrow view

(5)Attachtheairfilter(accessory)inthemannershowninthediagram.

In case of bottom side In case of back side

FilterPush

Push

Main unit

Attach the filter to the main unit while pushing down on the bends. *

* FDXS09/12, CDXS15/18 : 2 bends CDXS24 : 3 bends

■When two indoor units are installed in one room, one of the two wireless remote controllers can be easily set for another addresses.

J4 ADDRESSEXIST 1CUT 2

PCB in the indoor unit • Cut the jumper JA on PCB.

• Cut the jumper J4.

Wireless remote controller

1 2 3

JAADDRESS:

CUTEXIST 1

2ADDRESSJA

JBJC

J4

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Indoor Unit Installation<< As for the parts to be used for installation work, be sure to use the provided accessories and specified

parts designated by our company. >>

■ Install the indoor unit temporarily. •Attachthehangerbrackettothesuspensionbolt.Besuretofixitsecurelybyusinganutandwasherfromtheupperandlowersidesofthehangerbracket.(RefertoFig.)

[ PRECAUTION ]Sincetheunitusesaplasticdrainpan,preventweldingspatterandotherforeignsubstancesfromenteringtheoutletholeduringinstallation.

■Adjust the height of the unit.

■Check the unit is horizontally level.

[ How to secure washers ]

Insert below washer

Washer fixing plate

(accessory)

Part to be procured in the field

[ Securing the hanger bracket ]

Washer for hanging bracket

Hanger bracket

Tighten(double nut)

(accessory)

Vinyl tubeLevel

CAUTION•Makesuretheunitisinstalledlevelusingaleveloraplastictubefilledwithwater.Inusingaplastictubeinsteadofalevel,adjustthetopsurfaceoftheunittothesurfaceofthewateratbothendsoftheplastictubeandadjusttheunithorizontally.(Onethingtowatchoutforinparticularisifitisinstalledsothattheslopeisnotinthedirectionofthedrainpiping,asthismightcauseleaking.)

■ Tighten the upper nut.

■Mounting the receiver.Mountthereceiverasshownbelow.

1 Press the receiver into the mounting frame.

2 Mount the completed assembly using two screws.

3 Press the decorative cover into the mounting frame.

Note) Mount the Remote controller cord far enough away from strong electrical wires (such as distribution wires for electrical lights, air conditioners, etc.) and from weak electrical wires (such as wires for telephones, intercoms, etc.).

For heat pump: If your feet feel cold when using the heating function, it is recommended that the air outlet grille shown at below be attached.

(Adjustable angle)45°

Outdoor unit InstallationInstallasdescribedintheinstallationmanualsuppliedwiththeoutdoorunit.

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Refrigerant Piping WorkSeetheinstallationmanualsuppliedwiththeoutdoorunit.

1. Flaring the pipe end1)Cutthepipeendwithapipecutter.2)Removeburrswiththecutsurfacefacingdown-

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

A

A

(Cut exactly at right angles.) Remove burrs

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.

Check

0-0.02in (0-0.5mm) 0.04-0.06in (1.0-1.5mm) 0.06-0.08in (1.5-2.0mm)

Set exactly at the position shown below.

Clutch-type

Flare tool for R410A

Clutch-type (Rigid-type) Wing-nut type (Imperial-type)

Conventional flare tool

Flaring

Die

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

2. Refrigerant piping1)Topreventgasleakage,applyrefrigerationmachineoiltotheinner

surfaceoftheflare.(UserefrigerationoilforR410A)

2)Alignthecentersofbothflaresandtightentheflarenuts3or4turnsbyhand.Thentightenthemfullywiththetorquewrenches.•Usetorquewrencheswhentighteningtheflarenutstopreventdamagetotheflarenutsandescapinggas.

Flarenuttighteningtorque

Gasside Liquidside

3/8inch(9.5mm)

1/2inch(12.7mm)

5/8inch(15.9mm)

1/4inch(6.4mm)

24.1-29.4ft•lbf(32.7-39.9N•m)

36.5-44.5ft•lbf(49.5-60.3N•m)

45.6-55.6ft•lbf(61.8-75.4N•m)

10.4-12.7ft•lbf(14.2-17.2N•m)

CAUTION•Overtightening may damage the flare and cause leaks.

3) After the work is finished, make sure to check that there is no gas leak. Torque wrench

Piping union

Flare nutSpanner

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.

4) After checking for gas leaks, be sure to insulate the pipe connections.•Insulateusingtheinsulationforfittingincludedwiththeliquidandgaspipes.Besides,makesuretheinsulationforfittingontheliquidandgaspipinghasitsseamsfacingup.(Tightenbothedgeswithclamp.)

•Forthegaspiping,wrapthemediumsealingpadovertheinsulationforfitting(flarenutpart).

Gas pipe

Liquid pipe

Piping insulation material (main unit)

Attach to baseFlare nut connection

Turn seams up

Insulation for fitting

(accessory)Clamp

Piping insulation material(Field supplied)

Gas Piping Insulation Procedure

(accessory)

Main unit

Clamp (accessory)

Flare nut connection

Turn seams up

Piping insulation material(Field supplied)

Piping insulation material (main unit)

Attach to base

Main unit

Insulation for fitting (accessory)

Liquid Piping Insulation Procedure

Small sealing pad

Measure the length of the gas pipe as you will have to cover it with the sealing tape.

(accessory)

Wrap the sealing tape around the gas pipe.

Main unit

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Refrigerant Piping WorkCAUTION

Besuretoinsulateanyfieldpipingallthewaytothepipingconnectioninsidetheunit.Anyexposedpipingmaycausecondensa-tionorburnsiftouched.

Cautions on Pipe Handling•Protecttheopenendofthepipeagainstdustandmoisture.(Tightenbothedgeswithclamp.)

•Allpipebendsshouldbeasgentleaspossible.Useapipebenderforbending.(Seetheminimumbendradiusinthetablebelow.)

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

Selection of Copper and Heat Insulation materialsWhenusingcommercialcopperpipesandfittings,observethefollowing:•Insulationmaterial:PolyethylenefoamHeattransferrate:0.041to0.052W/mK(0.024to0.030Btu/fth°F(0.035to0.045kcal/mh°C))BesuretouseinsulationthatisdesignedforusewithHVACSystems.

•Besuretoinsulateboththegasandliquidpipingandtoprovideinsulationdimensionsasbelow.

Gasside Liquidside GaspipethermalinsulationLiquidpipethermalinsulation

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

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

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

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

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

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.

1-3/16inch(30mm)ormore

1-9/16inch(40mm)ormore

1-15/16inch(50mm)ormore

1-3/16inch(30mm)ormore

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

Thickness0.039inch(1.0mm)(C1220T-O)

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

Also,whensubjecttohighhumidity,heatinsulationoftherefrigerantpiping(theunitpipingandbranchpiping)mustbefurtherreinforced.Reinforcetheinsulationwheninstallingtheunitnearbathrooms,kitchens,andothersimilarlocations.Refertothefollowing:•86°F(30°C),morethan75%RH:13/16inch(20mm)Min.inthicknessIftheinsulationisnotsufficient,condensationmayformonthesurfaceoftheinsulation.

•Useseparatethermalinsulationpipesforgasandliquidrefrigerantpipes.

Gas pipeLiquid pipe

Gas pipe insulation

Liquid pipe insulation

Finishing tape Drain hose

Drain Piping WorkCAUTION

Makesureallwaterisoutbeforemakingtheductconnection.

■ Install the drain piping.•Makesurethedrainworksproperly.•Thediameterofthedrainpipeshouldbegreaterthanorequaltothediameteroftheconnectingpipe(vinyltube;pipesize:25/32inch(20mm);outerdimension:1-1/32inch(26mm)).

Drain pipe connection hole

Refrigerant pipes

Connect the drain pipe after removing the rubber cap and insulation tubing attached to the connection hole.

•Keepthedrainpipeshortandslopingdownwardsatagradientofatleast1/100topreventairpocketsfromforming.

OK

Wrong

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■English 9

CAUTION•Water accumulating in the drain piping can cause the drain to clog.

•Tokeepthedraintubefromsagging,spacehangingwiresevery3(1)to5ft(1.5m).•Usethedrainhoseandthemetalclamp.Insertthedrainhosefullyintothedrainsocketandfirmlytightenthemetalclampwiththeupperpartofthetapeonthehoseend.Tightenthemetalclampuntilthescrewheadislessthan1/8inch(4mm)fromthehose.

•Thetwoareasbelowshouldbeinsulatedbecausecondensationmayformtherecausingwatertoleak.•Drainpipingpassingindoors•Drainsockets

Referringthefigurebelow,insulatethemetalclampanddrainhoseusingtheincludedlargesealingpad.

ϕ1/8 inch (4mm)

Large sealing pad

Clamp metal

(accessory)

(accessory)Clamp metal

Drain hoseTape

(accessory)

(accessory)

<PRECAUTIONS>

Drainpipingconnections•Donotconnectthedrainpipingdirectlytosewagepipesthatsmellofammonia.Theammoniainthesewagemightentertheindoorunitthroughthedrainpipesandcorrodetheheatexchanger.

•Donottwistorbendthedrainhose,sothatexcessiveforceisnotappliedtoit.(Thistypeoftreatmentmaycauseleaking.)

■After piping work is finished, check drainage flows smoothly.•Graduallyinsertapproximately1Lofwaterintothedrainpantocheckdrainageinthemannerdescribedbelow.

•Graduallypourapproximately1Lofwaterfromtheoutletholeintothedrainpantocheckdrainage.

•Checkthedrainage.

Portable pump

Refrigerant pipesBucket

Air outlet

Drain outlet

Installing the DuctConnecttheductsuppliedinthefield.Air inlet side

•Attachtheductandintake-sideflange(fieldsupply).•Connecttheflangetothemainunitwithaccessoryscrews(in16,20or24positions).•Wraptheintake-sideflangeandductconnectionareawithaluminumtapeorsomethingsimilartopreventairescaping.

CAUTION•Whenattachingaducttotheintakeside,besurealsotoattachanairfilterinsidetheairpassageontheintakeside.(Useanairfilterwhosedustcollectingefficiencyisatleast50%inagravimetrictechnique.)

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Installing the DuctOutlet side

•Connecttheductaccordingtotheinsideoftheoutlet-sideflange.•Wraptheoutlet-sideflangeandtheductconnectionareawithaluminumtapeorsomethingsimilartopreventairescaping.

Main unit

Air inlet side Outlet side

Connection screw(accessory)

(field supply)

(field supply)

(field supply)

(field supply)

Flange

Flange

Aluminum tape

Aluminum tape

Insulation material

CAUTION•Besuretoinsulatetheducttopreventcondensationfromforming.(Material:glasswoolorpolyethylenefoam,1inch(25mm)thick)

•Useelectricinsulationbetweentheductandthewallwhenusingmetalductstopassmetallathsofthenetorfenceshapeormetalplatingintowoodenbuildings.

WiringSeetheinstallationmanualsuppliedwiththeoutdoorunit.

■HOW TO CONNECT WIRINGS.•WireonlyafterremovingthecontrolboxcoverasshownintheFig.

*Remote controller wiring

Control box cover

Wiring Diagram(rear)

Conduit mounting plate(accessory)

Conduit(field supply)

Lock nut(field supply)

Screw(accessory)

Power supply wiringGround wire

• Wrap the power supply wiring and the remote controller wiring with the sealing material as shown in the figure below.(Otherwise, moisture or small creatures such as insects from the outside may cause short-circuit inside the control box.)Attach securely so that there are no gaps.

Insideunit

Outsideunit

[How to adhere it]

Wire

(accessory)Sealing material Wiring

through hole

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Eng

lish

■English 11

CAUTION•Whendoingthewiring,makesurethewiringisneatanddoesnotcausethecontrolboxcovertostickup,thenclosethecoverfirmly.Whenattachingthecontrolboxcover,makesureyoudonotpinchanywires.

•Outsidetheunit,separatethelowvoltagewiring(remotecontrollerwiring)andhighvoltagewiring(groundwireandpowersupplywiring)atleast5insothattheydonotpassthroughthesameplacetogether.Proximitymaycauseelectricalinterfer-ence,malfunctions,andbreakage.

[ PRECAUTION ]

•Seealsothe“ElectricalWiringDiagramLabel”whenwiringtheunitforpowersupply.

[ Connecting electrical wiring ]

•Power supply wiring and ground wireRemovethecontrolboxcover.Next,pullthewiresintotheunitthroughtheconduitandthreadthemthroughtheinsulationtube(accessory),thenconnecttothepowerwiringterminalblock(4P).Securethewirescoveredbytheinsulationtubewiththeclamp(accessory).Besuretoputthepartofthesheathedvinylintothecontrolbox.

Terminal block (4P)

Conduit

Power supply wiringGround wire

Indoor PC board(ASSY)

Clamp (for fixing in place) (accessory)

Power supply wiringGround wire

Power supply wiringGround wire

Insulation tube (accessory)

WARNING•Do not use tapped wires, stranded wires, extension cords, or starburst connections, as they may cause overheating,

electrical shock, or fire.

123

1 2 3 GRL1L2Use 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.

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12 ■English

Trial Operation and Testing1. Trial operation and testing

(1)Measurethesupplyvoltageandmakesurethatitfallsinthespecifiedrange.(2)Trialoperationshouldbecarriedoutineithercoolingorheatingmode.

(1) Press ON/OFF button to turn on the system.(2) Simultaneously press center of TEMP button and MODE button.(3) Press MODE button twice. (“ ” will appear on the display to indicate that Trial Operation mode is selected.)(4) Trial operation mode terminates in approx. 30 minutes and switches into normal mode. To quit the trial operation, press

ON/OFF button.

Trial operation from remote controller

Incoolingmode,selectthelowestprogrammabletemperature;inheatingmode,selectthehighestprogrammabletempera-ture.•Trialoperationmaybedisabledineithermodedependingontheroomtemperature.•Aftertrialoperationiscomplete,setthetemperaturetoanormallevel(79°F(26°C)to82°F(28°C)incoolingmode,68°F(20°C)to75°F(24°C)inheatingmode).

•Forprotection,thesystemdisablesrestartoperationfor3minutesafteritisturnedoff.

(3)CarryoutthetestoperationinaccordancewiththeOperationManualtoensurethatallfunctionsandparts,areworkingproperly.*Theairconditionerrequiresasmallamountofpowerinitsstandbymode.Ifthesystemisnottobeusedforsometimeafterinstallation,shutoffthecircuitbreakertoeliminateunnecessarypowerconsumption.

*Ifthecircuitbreakertripstoshutoffthepowertotheairconditioner,thesystemwillrestoretheoriginaloperationmodewhenthecircuitbreakeristurnedonagain.

2. Test items

Testitems Symptom(diagnosticdisplayonRC) Check

Indoorandoutdoorunitsareinstalledproperlyonsolidbases. Fall,vibration,noise

Norefrigerantgasleaks.Incompletecooling/heatingfunction

Refrigerantgasandliquidpipesandindoordrainhoseextensionarethermallyinsulated.

Waterleakage

Drainpipeisproperlyinstalled. Waterleakage

Systemisproperlygrounded. Electricalleakage

Thespecifiedwiresareusedforinterconnectingwireconnections. Inoperativeorburndamage

Indoororoutdoorunit’sairinletordischargehasclearpathofair.Shut-offvalvesareopened.

Incompletecooling/heatingfunction

Indoorunitproperlyreceivesremotecontrollercommands. Inoperative

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Two-dimensional bar code is a code for manufacturing.

3P297301-3C M11B121B (1210) HT

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