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RXS15LVJU

Daikin RXS15LVJU Installation guide

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  • What safety precautions should be taken during installation?
    What are the accessories supplied with the outdoor unit?
    What factors should be considered when selecting the installation location?
    What is the maximum allowable piping length and height?
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English
Installation manual
R410A Split series
Français
Español
Manuel dinstallation
Série split R410A
Manual de instalación
Serie Split R410A
INSTALLATION
MANUAL
R410A Split Series
Models
RXS15LVJU
RXS18LVJU
00_CV_3P296778-1.indd 1 10/17/2011 2:44:16 PM
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English
Safety Precautions
•ReadtheseSafetyPrecautionscarefullytoensurecorrectinstallation.
•ThismanualclassiestheprecautionsintoDANGER,WARNINGandCAUTION.
Besuretofollowalltheprecautionsbelow:theyareallimportantforensuringsafety.
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.
•Thefollowingsafetysymbolsareusedthroughoutthismanual:
Besuretoobservethisinstruction. Besuretoestablishagroundconnection. Neverattempt.
•Aftercompletinginstallation,testtheunittocheckforinstallationerrors.Givetheuseradequateinstructions
concerningtheuseandcleaningoftheunitaccordingtotheOperationManual.
DANGER
•Refrigerantgasisheavierthanairandreplacesoxygen.Amassiveleakcouldleadtooxygendepletion,especially
inbasements,andanasphyxiationhazardcouldoccurleadingtoseriousinjuryordeath.
•Iftherefrigerantgasleaksduringinstallation,ventilatetheareaimmediately.
Refrigerantgasmayproduceatoxicgasifitcomesincontactwithresuchasfromafanheater,stoveorcookingdevice.
Exposuretothisgascouldcausesevereinjuryordeath.
•Aftercompletingtheinstallationwork,checkthattherefrigerantgasdoesnotleak.
Refrigerantgasmayproduceatoxicgasifitcomesincontactwithresuchasfromafanheater,stoveorcookingdevice.
Exposuretothisgascouldcausesevereinjuryordeath.
•Donotgroundunitstowaterpipes,telephonewiresorlightningrodsbecauseincompletegroundingcouldcausea
severeshockhazardresultinginsevereinjuryordeath,andtogaspipesbecauseagasleakcouldresultinan
explosionwhichcouldleadtosevereinjuryordeath.
•Safelydisposeofthepackingmaterials.
Packingmaterials,suchasnailsandothermetalorwoodenparts,maycausestabsorotherinjuries.
Tearapartandthrowawayplasticpackagingbagssothatchildrenwillnotplaywiththem.
Childrenplayingwithplasticbagsfacethedangerofdeathbysuffocation.
•Donotinstallunitinanareawhereammablematerialsarepresentduetoriskofexplosionresultinginserious
injuryordeath.
•Donotgroundunitstotelephonewiresorlightningrodsbecauselightningstrikescouldcauseasevereshock
hazardresultinginsevereinjuryordeath,andtogaspipesbecauseagasleakcouldresultinanexplosionwhich
couldleadtosevereinjuryordeath.
WARNING
•Installationshallbelefttotheauthorizeddealeroranothertrainedprofessional.
Improperinstallationmaycausewaterleakage,electricalshock,re,orequipmentdamage.
•Installtheairconditioneraccordingtotheinstructionsgiveninthismanual.
Incompleteinstallationmaycausewaterleakage,electricalshock,reorequipmentdamage.
•Besuretousethesuppliedorexactspeciedinstallationparts.
Useofotherpartsmaycausetheunittocometofall,waterleakage,electricalshock,reorequipmentdamage.
•Installtheairconditioneronasolidbasethatislevelandcansupporttheweightoftheunit.
Aninadequatebaseorincompleteinstallationmaycauseinjuryorequipmentdamageintheeventtheunitfallsoffthebaseorcomesloose.
•Electricalworkshallbecarriedoutinaccordancewiththeinstallationmanualandthenational,stateandlocal
electricalwiringcodes.
Insufcientcapacityorincompleteelectricalworkmaycauseelectricalshock,reorequipmentdamage.
•Besuretouseadedicatedpowercircuit.Neveruseapowersupplysharedbyanotherappliance.
Followallappropriateelectricalcodes.
•Forwiring,useawireorcablelongenoughtocovertheentiredistancewithnosplicesifpossible.
Donotuseanextensioncord.Donotputotherloadsonthepowersupply.
Useanonlyaseparatededicatedpowercircuit.
(Failuretodosomaycauseabnormalheat,electricshock,reorequipmentdamage.)
•Usethespeciedtypesofwiresforelectricalconnectionsbetweentheindoorandoutdoorunits.
Followallstateandlocalelectricalcodes.
Firmlyclamptheinter-unitwiresotheirterminalsreceivenoexternalstresses.
Incompleteconnectionsorclampingmaycauseterminaloverheating,reorequipmentdamage.
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Safety Precautions
WARNING
•Afterconnectingallwiresbesuretoshapethecablessothattheydonotputunduestressontheelectricalcovers,
panelsorterminals.
Installcoversoverthewires.Incompletecoverinstallationmaycauseterminaloverheating,electricalshock,reorequipmentdamage.
•Wheninstallingorrelocatingthesystem,besuretokeeptherefrigerantcircuitfreefromallsubstancesotherthan
thespeciedrefrigerant(R410A),suchasair.
(Anypresenceofairorotherforeignsubstanceintherefrigerantcircuitcausesanabnormalpressurerisewhichmayresultinrupture,resulting
ininjury.)
•Duringpump-down,stopthecompressorbeforeremovingtherefrigerantpiping.
Ifthecompressorisstillrunningandthestopvalveisopenduringpump-down,airwillbesuckedinwhentherefrigerantpipingisremoved,
causingabnormallyhighpressurewhichcouldleadtoequipmentdamageorandpersonalinjury.
•Duringinstallation,attachtherefrigerantpipingsecurelybeforerunningthecompressor.
Iftherefrigerantpipesarenotattachedandthestopvalveisopenduringpump-down,airwillbesuckedinwhenthecompressorisrun,
causingabnormallyhighpressurewhichcouldleadtoequipmentdamageandpersonalinjury.
•Besuretoinstallagroundfaultcircuitinterrupterbreaker.
Failuretoinstallagroundfaultcircuitinterrupterbreakermayresultinelectricallyshocks,orrepersonalinjury.
CAUTION
•Donotinstalltheairconditionerwheregasleakagewouldbeexposedtoopenames.
Ifthegasleaksandbuildsuparoundtheunit,itmaycatchre.
•Establishdrainpipingaccordingtotheinstructionsofthismanual.
Inadequatepipingmaycausewaterdamage.
•Tightenthearenutaccordingtothespeciedtorque.Atorquewrenchshouldbeused.
Ifthearenutistightenedtoomuch,thearenutmaycrackovertimeandcauserefrigerantleakage.
•Donottouchtheheatexchangerns.
Improperhandlingmayresultininjury.
•Beverycarefulaboutproducttransportation.
SomeproductsusePPbandsforpackaging.DonotuseanyPPbandsforameansoftransportation.Itisdangerous.
•Makesuretoprovideforadequatemeasuresinordertopreventthattheoutdoorunitbeusedasashelterbysmall
animals.
Smallanimalsmakingcontactwithelectricalpartscancausemalfunctions,smokeorre.Pleaseinstructthecustomertokeeptheareaaround
theunitclean.
•Thetemperatureofrefrigerantcircuitwillbehigh,pleasekeeptheinter-unitwireawayfromcopperpipesthatare
notthermallyinsulated.
•ElectricalworkmustbeperformedinaccordancewiththeNEC/CECbyauthorizedpersonnelonly.
Accessories
Accessoriessuppliedwiththeoutdoorunit:
Installationmanual 1
Drainplug
Thedrainplugislocatedinthebottomofthe
packingcase.
1
A
B
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Precautions for Selecting the Location
1) Chooseaplacesolidenoughtobeartheweightandvibrationoftheunit,wheretheoperationsoundswillnotbeamplied.
2)
Choosealocationwherethehotairdischargedfromtheunitortheoperationsoundswillnotdisturbtheneighborsoftheuser.
3)
Avoidinstallingnearbedroomssothatoperationsoundswillnotbeaproblem.
4)
Theremustbesufcientspaceforcarryingtheunitintoandoutofthesite.
5)
Theremustbesufcientspaceforairpassageandnoobstructionsaroundtheairinletandtheairoutlet.
6)
Thesitemustbefreefromthepossibilityofammablegasleakageinanearbyplace.
7)
Installunits,powercordsandinter-unitwireatleast10ft(3m)awayfromtelevisionandradiosets.Thisistopreventinterference
toimagesandsounds.(Noisesmaybeheardeveniftheyaremorethan10ft(3m)awaydependingonradiowaveconditions.)
8)
Incoastalareasorotherplaceswithsaltyatmosphereofsulfategas,corrosionmayshortenthelifeoftheairconditioner.
9)
Sincedrainowsoutoftheoutdoorunit,donotplaceanythingundertheunitwhichmustbekeptawayfrommoisture.
NOTE
Cannotbeinstalledhangingfromceilingorstacked.
CAUTION
Whenoperatingtheairconditionerinalowoutdoorambient
temperature,besuretofollowtheinstructionsdescribedbelow.
•Topreventexposuretowind,installtheoutdoorunitwithitssuction
sidefacingthewall.
•Neverinstalltheoutdoorunitatasitewherethesuctionsidemay
beexposeddirectlytowind.
•Topreventexposuretowind,itisrecommendedtoinstallabafe
plateontheairdischargesideoftheoutdoorunit.
•Inheavysnowfallareas,selectaninstallationsitewherethesnow
willnotaffecttheunit.
Construct a large canopy.
Construct a pedestal.
Install the unit high enough off the
ground to prevent burying in snow.
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Outdoor Unit Installation Drawings
Service lid
Allow 11-13/16 inch
(300mm) of work space
below the ceiling surface.
Allow space for piping
and electrical servicing.
(Foot bolt-hole
centers)
CAUTION
**Set the piping length
from 4.92ft (1.5m) to
98.4ft (30m).
Stop valve cover
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 98.4ft (30m)
4.92ft (1.5m)
65.6ft (20m)
Liquid pipe
Gas pipe
O.D. 1/4 inch (6.4mm)
O.D. 1/2 inch (12.7mm)
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.)
unit : inch (mm)
9-7/8 (250) from wall
22-13/16 (580)
4-3/4
(120)
13 (330)
Wrap the insulation
pipe with the finishing
tape from bottom to top.
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Installation Guidelines
•Whereawallorotherobstacleisinthepathofoutdoorunit’sinletoroutletairow,followtheinstallationguidelinesbelow.
•Foranyofthebelowinstallationpatterns,thewallheightontheoutletsideshouldbe47-1/4inch(1200mm)orless.
More than
3-15/16 (100)
More than
13-3/4 (350)
Side view
47-1/4
(1200)
or less
More than
1-15/16 (50)
More than
1-15/16 (50)
More than
13-3/4 (350)
Top view
More than
3-15/16 (100)
Top view
unit: inch (mm)
More than 3-15/16 (100)
More than 13-3/4 (350)
More than
1-15/16 (50)
Wall facing one side Walls facing two sides
Walls facing three sides
Precautions on Installation
•
Checkthestrengthandleveloftheinstallationgroundsothattheunitwillnotcauseanyoperatingvibrationornoiseafterinstalled.
•Inaccordancewiththefoundationdrawing,xtheunitsecurelybymeansofthefoundationbolts.(Prepare4setsofM8orM10
foundationbolts,nutsandwasherseachwhichareavailableonthemarket.)
•Itisbesttoscrewinthefoundationboltsuntiltheirendsare3/4inch(20mm)fromthefoundationsurface.
3/4 inch
(20mm)
Outdoor Unit Installation
1. Installing outdoor unit
1)
Wheninstallingtheoutdoorunit,referto“PrecautionsforSelectingtheLocation”andthe“OutdoorUnitInstallationDrawings”.
2) Ifdrainworkisnecessary,followtheproceduresbelow.
2. Drain work
1) Usedrainplugfordrainage.
2) Ifthedrainportiscoveredbyamountingbaseoroorsurface,place
additionalfootbasesofatleast1-1/4inch(30mm)inheightundertheoutdoor
unit’sfeet.
3) Incoldareas,donotuseadrainhosewiththeoutdoorunit.
(Otherwise,drainwatermayfreeze,impairingheatingperformance.)
Drain port
Bottom frame
Drain plug
Hose (available commercially,
inner dia. 5/8 inch (16mm))
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Outdoor Unit Installation
3. Flaring the pipe end
1) Cutthepipeendwithapipecutter.
2) Removeburrswiththecutsurfacefacing
downwardsothatthechipsdonotenterthepipe.
3) Putthearenutonthepipe.
4) Flarethepipe.
5) Checkthatthearingisproperlymade.
WARNING
•Donotusemineraloilonaredpart.
•Preventmineraloilfromgettingintothesystemasthiswouldreducethelifetimeoftheunits.
•Neverusepipingwhichhasbeenusedforpreviousinstallations.Onlyusepartswhicharedeliveredwiththeunit.
•NeverinstalladriertothisR410Aunitinordertoguaranteeitslifetime.
•Thedryingmaterialmaydissolveanddamagethesystem.
•Incompletearingmaycauserefrigerantgasleakage.
4. Refrigerant piping
CAUTION
•Usethearenutxedtothemainunittopreventitfromcrackinganddeterioratingfromage.
•Topreventgasleakage,applyrefrigerationoilonlytotheinnersurfaceoftheare.(UserefrigerationoilforR410A.)
•Usetorquewrencheswhentighteningthearenutstopreventdamagetothearenutsandgasleakage.
Flare nut tightening torque
Liquid side
1/4 inch (6.4mm)
10.4-12.7ft • lbf
(14.2-17.2N • m)
Gas side
1/2 inch (12.7mm)
36.5-44.5ft • lbf
(49.5-60.3N • m)
Valve cap tightening torque
Liquid side
1/4 inch (6.4mm)
15.9-20.2ft • Ibf
(21.6-27.4N • m)
Gas side
1/2 inch (12.7mm)
35.5-44.0ft • Ibf
(48.1-59.7N • m)
Service port cap tightening torque
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.
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
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5. Purging air and checking gas leakage
WARNING
•Donotmixanysubstanceotherthanthespeciedrefrigerant(R410A)intotherefrigerationcycle.
•Whenrefrigerantgasleaksoccur,ventilatetheroomassoonandasmuchaspossible.
•R410A,aswellasotherrefrigerants,shouldalwaysberecoveredandneverbereleaseddirectlyintotheenvironment.
•
UseavacuumpumpforR410Aexclusively.Usingthesamevacuumpumpfordifferentrefrigerantsmaydamagethevacuum
pumportheunit.
•Whenpipingworkiscompleted,itisnecessarytopurgetheairandcheckforgasleakage.
•Ifusingadditionalrefrigerant,performairpurgingfromtherefrigerantpipes
andindoorunitusingavacuumpump,thenchargeadditionalrefrigerant.
•Useahexagonalwrench(3/16inch(4mm))tooperatethestopvalverod.
•Allrefrigerantpipejointsshouldbetightenedwithatorquewrenchatthe
speciedtighteningtorque.
1) Connectprojectionsideofcharginghose(whichcomesfromgaugemanifold)togasstopvalve’sserviceport.
2) Fullyopengaugemanifold’slow-pressurevalve(Lo)andcompletelycloseitshigh-pressurevalve(Hi).
(High-pressurevalvesubsequentlyrequiresnooperation.)
3) Dovacuumpumpingandmakesurethatthecompoundpressuregaugereads–29.9inHg(–0.1MPa).*1
4) Closegaugemanifold’slow-pressurevalve(Lo)andstopvacuumpump.
(Keepthisstateforafewminutestomakesurethatthecompoundpressuregaugepointerdoesnotswingback.)*2
5) Removecapsfromliquidstopvalveandgasstopvalve.
6) Turntheliquidstopvalve’srod90degreescounterclockwisewithahexagonalwrenchtoopenvalve.
Closeitafter5seconds,andcheckforgasleakage.
Usingsoapywater,checkforgasleakagefromindoorunit’sareandoutdoorunit’sareandvalverods.
Afterthecheckiscomplete,wipeallsoapywateroff.
7) Disconnectcharginghosefromgasstopvalve’sserviceport,thenfullyopenliquidandgasstopvalves.
(Donotattempttoturnvalverodbeyonditsstop.)
8) Tightenvalvecapsandserviceportcapsfortheliquidandgasstopvalveswithatorquewrenchatthespeciedtorques.
*1.Pipelengthvs.vacuumpumpruntime
Pipelength Upto49.2ft(15m) Morethan49.2ft(15m)
Runtime Notlessthan10min. Notlessthan15min
*2.Ifthecompoundpressuregaugepointerswingsback,refrigerantmayhavewatercontentoraloosepipejointmayexists.Check
allpipejointsandretightennutsasneeded,thenrepeatsteps2)through4).
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
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Outdoor Unit Installation
6. Relling the refrigerant
Checkthetypeofrefrigeranttobeusedonthemachinenameplate.
Precautions when adding R410A
Fill from the gas pipe in liquid form.
Itisamixedrefrigerant,soaddingitingasformmaycausetherefrigerantcompositiontochange,preventingnormaloperation.
1) Beforelling,checkwhetherthecylinderhasasiphonattachedornot.(Itshouldhavesomethinglike“liquidllingsiphon
attached”displayedonit.)
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.
•BesuretousetheR410Atoolstoensurepressureandtopreventforeignobjectsentering.
7. Refrigerant piping work
7-1 Caution on pipe handling
1) Protecttheopenendofthepipeagainstdustandmoisture.
2) Allpipebendsshouldbeasgentleaspossible.Useapipebenderfor
bending.
7-2 Selection of copper and heat insulation materials
Whenusingcommercialcopperpipesandttings,observethefollowing:
1) Insulationmaterial:Polyethylenefoam
Heattransferrate:0.041to0.052W/mK(0.024to0.030Btu/fth°F(0.035to0.045kcal/mh°C))
BesuretouseinsulationthatisdesignedforusewithHVACSystems.
2) Besuretoinsulateboththegasandliquidpipingandtoprovideinsulation
dimensionsasbelow.
Gasside Liquidside
Gaspipethermal
insulation
Liquidpipethermal
insulation
O.D.1/2inch
(12.7mm)
O.D.1/4inch
(6.4mm)
I.D.9/16-5/8inch
(14-16mm)
I.D.5/16-13/32inch
(8-10mm)
Minimumbendradius Thickness13/32inch(10mm)Min.
1-9/16inch(40mm)
ormore
1-3/16inch(30mm)
ormore
Thickness0.031inch(0.8mm)(C1220T-O)
•Useseparatethermalinsulationpipesforgasandliquidrefrigerantpipes.
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 pipe
Liquid pipe
Gas pipe
insulation
Liquid pipe
insulation
Finishing tape
Drain hose
Inter-unit wire
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Pump Down Operation
In order to protect the environment, be sure to pump down when relocating or disposing of the unit.
1) Removethevalvecapfromliquidstopvalveandgasstop
valve.
2) Carryoutforcedcoolingoperation.
3) After5to10minutes,closetheliquidstopvalvewitha
hexagonalwrench.
4) After2to3minutes,closethegasstopvalveandstopforced
coolingoperation.
Forced cooling operation
■
Using the indoor unit ON/OFF switch
PresstheindoorunitON/OFFswitchforatleast5seconds.(Theoperationwillstart.)
• Forcedcoolingoperationwillstopautomaticallyafteraround15minutes.
Tostoptheoperation,presstheindoorunitON/OFFswitch.
■
Using the indoor unit’s remote controller
1) Press“MODE”buttonandselectthecoolingmode.
2) Press“ON/OFF”buttontoturnonthesystem.
3) Pressbothof“TEMP”buttonand“MODE”buttonatthesametime.
4) Press“MODE”buttontwice.(
willbedisplayedandtheunitwillenterforcedcoolingoperation.)
• Forcedcoolingoperationwillstopautomaticallyafteraround30minutes.
Tostoptheoperation,press“ON/OFF”button.
■
Using the outdoor unit forced cooling operation switch
Forcedcoolingoperationcanbeperformedwhentheoutdoorunitforcedcoolingoperationswitchispressedwithin
around3minutesafterpowerissupplied.
• Pushon“
”withascrewdriver.(Theoperationwillstart.)
• Forcedcoolingoperationwillstopautomaticallyafteraround15minutes.
Tostoptheoperation,presstheswitch(SW1).
1
2
3
Screwdriver
Forced cooling
operation switch
(SW1)
Push
Wiring
WARNING
•
Donotusetappedwires,strandedwires,extensioncords,orstarburstconnections,astheymaycauseoverheating,electricalshock,orre.
•Donotuselocallypurchasedelectricalpartsinsidetheproduct.(Donotbranchthepowerforthedrainpump,etc.,fromthe
terminalblock.)Doingsomaycauseelectricshockorre.
•Besuretoinstallagroundfaultcircuitinterrupterbreaker.(Onethatcanhandlehigherharmonics.)
(Thisunitusesaninverter,whichmeansthatitmustbeusedagroundfaultcircuitinterrupterbreakercapablehandling
harmonicsinordertopreventmalfunctioningofthegroundfaultcircuitinterrupterbreakeritself.)
•Useanall-poledisconnectiontypebreakerwithatleast1/8inch(3mm)betweenthecontactpointgaps.
•Whencarryingoutwiringconnection,takecarenottopullattheconduit.
•Donotconnectthepowerwiretotheindoorunit.Doingsomaycauseelectricshockorre.
•Donotturnonthesafetybreakeruntilallworkiscompleted.
1)
Striptheinsulationfromthewire(3/4inch(20mm)).
2) Connecttheconnectionwiresbetweenthe
indoorandoutdoorunitssothattheterminal
numbersmatch.Tightentheterminalscrews
securely.Werecommendaathead
screwdriverbeusedtotightenthescrews.
Gas stop valve
Valve cap
Hexagonal wrench
Close
Liquid stop valve
Service port
1
2
3
1 2 3
GR
L1L2
Safety
breaker
20A
Ground fault
circuit 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 supply
60Hz 208-230V
Use AWG 14 wires.
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Wiring
<Workbeforewiring>
Aprotectionplateisxedforprotectionfromthehigh-voltagesection.
Beforestaringwiringwork,dismounttheprotectionplatebyremovingthe2screwsanddismounttheconduitmountingcoverby
removingthe2screws.
<Methodofmountingconduit>
1) Passwiresthroughtheconduitandsecurethemwithalocknut.
2) Aftercompletingthework,reattachtheconduitmountingcoverandtheprotectionplatetoitsoriginalposition.
1
2
3
1
2
3
Screw
Protection plate
Conduit
mounting
plate
Conduit
1/2 inch (21.3mm)
Lock nut
Power supply
terminal block
Shape wires so
that the protection
plate and conduit
mounting plate fit
securely.
Observethenotesmentionedfollowingwhenwiringtothepowersupplyterminalboard.
Precautionstobetakenforpowersupplywiring.
CAUTION
•Whenconnectingtheconnectionwirestotheterminalboard
usingasinglecorewire,besuretoperformcurling.
Problemswiththeworkmaycauseheatandres.
Strip wire end
to this point.
Excessive strip length
may cause electrical
shock or leakage.
Good Wrong
•Ifthestrandedwiresmustbeused,makesuretousethe
roundcrimp-styleterminalforconnectiontothepower
supplyterminalblock.Placetheroundcrimp-style
terminalsonthewiresuptothecoveredpartandsecurein
place.
Stranded wire
Round crimp-style
terminal
3) Pullthewireandmakesurethatitdoesnotdisconnect.Thenxthewireinplacewithawirestop.
Stripping wire at terminal block
Good Wrong
01_EN_3P296778-1.indd 10 10/7/2011 8:44:54 AM
11
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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 ofce where people occupy the space.
■
Cuttingjumper6(J6)onthecircuitboardwillexpandtheoperationrangedownto14°F(–10°C).Howeveritwillstopif
theoutdoortemperaturedropsbelow–0.4°F(–18°C)andstartbackuponcethetemperaturerisesagain.
1) Removethe3screwsonthesideandremovethetopplateoftheoutdoorunit.
2) Removethedripproofcover.
3) Cutthejumper(J6)ofthePCBinside.
J5
J7
J8
J6
GND
Top plate
PCB
Drip proof cover
1) Remove the
3 screws.
2) Remove the drip
proof cover.
3) Cut jumper J6.
CAUTION
•Iftheoutdoorunitisinstalledwheretheheatexchangeroftheunitisexposedtodirectwind,provideawindbreakwall.
•Intermittentnoisesmaybeproducedbytheindoorunitduetotheoutdoorfanturningonandoffwhenusingfacilitysettings.
•Donotplacehumidiersorotheritemswhichmightraisethehumidityinroomswherefacilitysettingsarebeingused.
Ahumidiermightcausedewcondensationfromtheindoorunitoutletvent.
•Cuttingjumper6(J6)setstheindoorfantaptothehighestposition.Notifytheuseraboutthis.
01_EN_3P296778-1.indd 11 10/7/2011 8:44:54 AM
12
■
English
Trial Operation and Testing
1. Trial operation and testing
1-1Measurethesupplyvoltageandmakesurethatitfallsinthespeciedrange.
1-2Trialoperationshouldbecarriedoutineithercoolingorheatingmode.
•Incoolingmode,selectthelowestprogrammabletemperature;inheatingmode,selectthehighestprogrammable
temperature.
1) Trialoperationmaybedisabledineithermodedependingontheroomtemperature.
2) Aftertrialoperationiscomplete,setthetemperaturetoanormallevel(78°Fto82°F(26°Cto28°C)incoolingmode,
68°Fto75°F(20°Cto24°C)inheatingmode).
3) Forprotection,thesystemdisablesrestartoperationfor3minutesafteritisturnedoff.
1-3Carryoutthetestoperationinaccordancewiththeoperationmanualtoensurethatallfunctionsandparts,
suchasnmovement,areworkingproperly.
•Theairconditionerrequiresasmallamountofpowerinitsstandbymode.Ifthesystemisnottobeusedforsome
timeafterinstallation,shutoffthecircuitbreakertoeliminateunnecessarypowerconsumption.
•Ifthecircuitbreakertripstoshutoffthepowertotheairconditioner,thesystemwillrestoretheoriginaloperation
modewhenthecircuitbreakerisopenedagain.
2. Test items
Testitems Symptom Check
Indoorandoutdoorunitsareinstalledproperlyonsolidbases. Fall,vibration,noise
Norefrigerantgasleaks.
Incompletecooling/heating
function
Refrigerantgasandliquidpipesandindoordrainhoseextensionare
thermallyinsulated.
Waterleakage
Draininglineisproperlyinstalled. Waterleakage
Systemisproperlygrounded. Electricalleakage
Thespeciedwiresareusedforinter-unitwiring. Inoperativeorburndamage
Indoororoutdoorunit’sairinletorairoutlethasclearpathofair.
Stopvalvesareopened.
Incompletecooling/heating
function
Indoorunitproperlyreceivesremotecontrolcommands. Inoperative
01_EN_3P296778-1.indd 12 10/7/2011 8:44:54 AM
3P296778-1
M11B087
(1111)
HT
Two-dimensional bar code is a code
for manufacturing.
00_CV_3P296778-1.indd 2 10/17/2011 2:44:16 PM
/