INSTALLATION
MANUAL
R410A Split Series
Installation manual
R410A Split series
English
Manuel dinstallation
Série split R410A
Français
Manual de instalación
Serie Split R410A
Español
Models
RXS30LVJU
RXS36LVJU
RKS30LVJU
RKS36LVJU
00_CV_3P300674-3B.indd 1
8/30/2012 9:26:48 AM
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.Givetheuseradequateinstructions
concerningtheuseandcleaningoftheunitaccordingtotheOperationManual.
DANGER
•Refrigerantgasisheavierthanairandreplacesoxygen.Amassiveleakcouldleadtooxygendepletion,especially
inbasements,andanasphyxiationhazardcouldoccurleadingtoseriousinjuryordeath.
•Iftherefrigerantgasleaksduringinstallation,ventilatetheareaimmediately.
Refrigerantgasmayproduceatoxicgasifitcomesincontactwithfiresuchasfromafanheater,stoveorcookingdevice.
Exposuretothisgascouldcausesevereinjuryordeath.
•Aftercompletingtheinstallationwork,checkthattherefrigerantgasdoesnotleak.
Refrigerantgasmayproduceatoxicgasifitcomesincontactwithfiresuchasfromafanheater,stoveorcookingdevice.
Exposuretothisgascouldcausesevereinjuryordeath.
•Donotgroundunitstowaterpipes,telephonewiresorlightningrodsbecauseincompletegroundingcouldcausea
severeshockhazardresultinginsevereinjuryordeath,andtogaspipesbecauseagasleakcouldresultinan
explosionwhichcouldleadtosevereinjuryordeath.
•Safelydisposeofthepackingmaterials.
Packingmaterials,suchasnailsandothermetalorwoodenparts,maycausestabsorotherinjuries.
Tearapartandthrowawayplasticpackagingbagssothatchildrenwillnotplaywiththem.
Childrenplayingwithplasticbagsfacethedangerofdeathbysuffocation.
•Donotinstallunitinanareawhereflammablematerialsarepresentduetoriskofexplosionresultinginserious
injuryordeath.
•Donotgroundunitstotelephonewiresorlightningrodsbecauselightningstrikescouldcauseasevereshock
hazardresultinginsevereinjuryordeath,andtogaspipesbecauseagasleakcouldresultinanexplosionwhich
couldleadtosevereinjuryordeath.
WARNING
•Installationshallbelefttotheauthorizeddealeroranothertrainedprofessional.
Improperinstallationmaycausewaterleakage,electricalshock,fire,orequipmentdamage.
•Installtheairconditioneraccordingtotheinstructionsgiveninthismanual.
Incompleteinstallationmaycausewaterleakage,electricalshock,fireorequipmentdamage.
•Besuretousethesuppliedorexactspecifiedinstallationparts.
Useofotherpartsmaycausetheunittocometofall,waterleakage,electricalshock,fireorequipmentdamage.
•Installtheairconditioneronasolidbasethatislevelandcansupporttheweightoftheunit.
Aninadequatebaseorincompleteinstallationmaycauseinjuryorequipmentdamageintheeventtheunitfallsoffthebaseorcomesloose.
•Electricalworkshallbecarriedoutinaccordancewiththeinstallationmanualandthenational,stateandlocal
electricalwiringcodes.
Insufficientcapacityorincompleteelectricalworkmaycauseelectricalshock,fireorequipmentdamage.
•Besuretouseadedicatedpowercircuit.Neveruseapowersupplysharedbyanotherappliance.
Followallappropriateelectricalcodes.
•Forwiring,useawireorcablelongenoughtocovertheentiredistancewithnosplicesifpossible.
Donotuseanextensioncord.Donotputotherloadsonthepowersupply.
Useanonlyaseparatededicatedpowercircuit.
(Failuretodosomaycauseabnormalheat,electricshock,fireorequipmentdamage.)
•Usethespecifiedtypesofwiresforelectricalconnectionsbetweentheindoorandoutdoorunits.
Followallstateandlocalelectricalcodes.
Firmlyclamptheinter-unitwiresotheirterminalsreceivenoexternalstresses.
Incompleteconnectionsorclampingmaycauseterminaloverheating,fireorequipmentdamage.
■English
01_EN_3P300674-3B.indd 1
1
8/28/2012 6:26:51 PM
Safety Precautions
WARNING
•Afterconnectingallwiresbesuretoshapethecablessothattheydonotputunduestressontheelectricalcovers,
panelsorterminals.
Installcoversoverthewires.Incompletecoverinstallationmaycauseterminaloverheating,electricalshock,fireorequipmentdamage.
•Wheninstallingorrelocatingthesystem,besuretokeeptherefrigerantcircuitfreefromallsubstancesotherthan
thespecifiedrefrigerant(R410A),suchasair.
(Anypresenceofairorotherforeignsubstanceintherefrigerantcircuitcausesanabnormalpressurerisewhichmayresultinrupture,resulting
ininjury.)
•Duringpump-down,stopthecompressorbeforeremovingtherefrigerantpiping.
Ifthecompressorisstillrunningandthestopvalveisopenduringpump-down,airwillbesuckedinwhentherefrigerantpipingisremoved,
causingabnormallyhighpressurewhichcouldleadtoequipmentdamageorandpersonalinjury.
•Duringinstallation,attachtherefrigerantpipingsecurelybeforerunningthecompressor.
Iftherefrigerantpipesarenotattachedandthestopvalveisopenduringinstallation,airwillbesuckedinwhenthecompressorisrun,causing
abnormallyhighpressurewhichcouldleadtoequipmentdamageandpersonalinjury.
•Besuretoinstallagroundfaultcircuitinterrupterbreaker.
Failuretoinstallagroundfaultcircuitinterrupterbreakermayresultinelectricallyshocks,orfirepersonalinjury.
CAUTION
•Donotinstalltheairconditionerwheregasleakagewouldbeexposedtoopenflames.
Ifthegasleaksandbuildsuparoundtheunit,itmaycatchfire.
•Establishdrainpipingaccordingtotheinstructionsofthismanual.
Inadequatepipingmaycausewaterdamage.
•Tightentheflarenutaccordingtothespecifiedtorque.Atorquewrenchshouldbeused.
Iftheflarenutistightenedtoomuch,theflarenutmaycrackovertimeandcauserefrigerantleakage.
•Donottouchtheheatexchangerfins.
Improperhandlingmayresultininjury.
•Beverycarefulaboutproducttransportation.
SomeproductsusePPbandsforpackaging.DonotuseanyPPbandsforameansoftransportation.Itisdangerous.
•Makesuretoprovideforadequatemeasuresinordertopreventthattheoutdoorunitbeusedasashelterbysmall
animals.
Smallanimalsmakingcontactwithelectricalpartscancausemalfunctions,smokeorfire.Pleaseinstructthecustomertokeeptheareaaround
theunitclean.
•Thetemperatureofrefrigerantcircuitwillbehigh,pleasekeeptheinter-unitwireawayfromcopperpipesthatare
notthermallyinsulated.
•ElectricalworkmustbeperformedinaccordancewiththeNEC/CECbyauthorizedpersonnelonly.
Accessories
Accessoriessuppliedwiththeoutdoorunit:
A Installationmanual
1
C Tube
2
D Bindingband
2
2
01_EN_3P300674-3B.indd 2
B Drainsocketassembly
(Onlyheatpumpmodels)
1
■English
8/28/2012 6:26:52 PM
Precautions for Selecting the Location
1)
2)
3)
4)
5)
6)
7)
Chooseaplacesolidenoughtobeartheweightandvibrationoftheunit,wheretheoperationsoundswillnotbeamplified.
Choosealocationwherethehotairdischargedfromtheunitortheoperationsoundswillnotdisturbtheneighborsoftheuser.
Avoidinstallingnearbedroomssothatoperationsoundswillnotbeaproblem.
Theremustbesufficientspacesforcarryingtheunitintoandoutofthesite.
Theremustbesufficientspaceforairpassageandnoobstructionsaroundtheairinletandtheairoutlet.
Thesitemustbefreefromthepossibilityofflammablegasleakageinanearbyplace.
Installunits,powercordsandinter-unitwireatleast10ft(3m)awayfromtelevisionandradiosets.Thisistopreventinterference
toimagesandsounds.(Noisesmaybeheardeveniftheyaremorethan10ft(3m)awaydependingonradiowaveconditions.)
8) Incoastalareasorotherplaceswithsaltyatmosphereofsulfategas,corrosionmayshortenthelifeoftheairconditioner.
9) Sincedrainflowsoutoftheoutdoorunit,donotplaceanythingundertheunitwhichmustbekeptawayfrommoisture.
NOTE
Cannotbeinstalledhangingfromceilingorstacked.
CAUTION
Whenoperatingtheairconditionerinalowoutdoorambient
temperature,besuretofollowtheinstructionsdescribedbelow.
•Topreventexposuretowind,installtheoutdoorunitwithitssuction
sidefacingthewall.
•Neverinstalltheoutdoorunitatasitewherethesuctionsidemay
beexposeddirectlytowind.
•Topreventexposuretowind,itisrecommendedtoinstallabaffle
plateontheairdischargesideoftheoutdoorunit.
•Inheavysnowfallareas,selectaninstallationsitewherethesnow
willnotaffecttheunit.
Construct a large canopy.
Construct a pedestal.
Install the unit high enough off the
ground to prevent burying in snow.
Precautions on Installation
3/4 inch
(20mm)
•Checkthestrengthandleveloftheinstallationgroundsothattheunitwillnotcauseanyoperatingvibrationornoiseafterinstalled.
•Inaccordancewiththefoundationdrawing,fixtheunitsecurelybymeansofthefoundationbolts.
(Prepare4setsof1/2inch(M12)foundationbolts,nutsandwasherseachwhichareavailableonthemarket.)
•Itisbesttoscrewinthefoundationboltsuntiltheirendsare3/4inch(20mm)fromthefoundationsurface.
■English
01_EN_3P300674-3B.indd 3
3
8/28/2012 6:26:52 PM
Outdoor Unit Installation Drawings
Max. allowable piping length
98.4ft (30m)
** Min. allowable piping length
6.56ft (2m)
Max. allowable piping height
65.6ft (20m)
* Additional refrigerant
required for refrigerant
pipe exceeding
32.8ft (10m) in length.
0.54oz/ft (50g/m)
Gas pipe
O.D. 5/8 inch (15.9mm)
Liquid pipe
O.D. 3/8 inch (9.5mm)
* 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 6.56ft (2m), 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.)
Wrap the insulation
pipe with the finishing
tape from bottom to top.
Allow 11-13/16 inch (300mm)
of work space below the
ceiling surface.
CAUTION
** Set the piping length
from 6.56ft (2m) to
98.4ft (30m).
9-7/8 (250) fro
m wall
Allow space for piping
and electrical servicing.
If there is the danger of the unit falling
or overturning, fix the unit with
foundation bolts, or with wire or other
means.
Right side plate
If the location does not have good
drainage, place the unit on a level
mounting base (or a plastic pedestal).
Install the outdoor unit in a level
position. Failure to do so may result in
water leakage or accumulation.
(Foot
bo
lt-hole
4
le
-3/
ho
13 350)
lt(
o
t b s)
oo er
(F ent
c
24-7/16
(620)
centers
)
Also insulate the connection on the outdoor unit.
unit : inch (mm)
Level mounting base
(available separately)
Clamping material
Insulation tube
Tape
Bottom frame
Use tape or insulating material on all connections
to prevent air from getting in between the copper
piping and the insulation tube.
Be sure to do this if the outdoor unit is installed
above.
4
01_EN_3P300674-3B.indd 4
■English
8/28/2012 6:26:52 PM
Installation Guidelines
•Whereawallorotherobstacleisinthepathofoutdoorunit’sinletoroutletairflow,followtheinstallationguidelinesbelow.
•Foranyofthebelowinstallationpatterns,thewallheightontheoutletsideshouldbe47-1/4inch(1200mm)orless.
Wall facing one side
More than
3-15/16 (100)
Walls facing two sides
More than
13-3/4 (350)
47-1/4
(1200)
or less
Walls facing three sides
More than
13-3/4 (350)
More than
3-15/16 (100)
More than
1-15/16 (50)
More than
3-15/16 (100)
More than
1-15/16 (50)
More than
13-3/4 (350)
More than
1-15/16 (50)
Top view
Top view
Side view
unit: inch (mm)
Outdoor Unit Installation
1.
Installing outdoor unit
1) Wheninstallingtheoutdoorunit,referto“PrecautionsforSelectingtheLocation”andthe“OutdoorUnitInstallationDrawings”.
2) Ifdrainworkisnecessary,followtheproceduresbelow.
2.
Drain work
•Usedrainplugfordrainage.
•Ifthedrainportiscoveredbyamountingbaseorfloorsurface,placeadditionalfootbasesofatleast3-15/16inch
(100mm)inheightundertheoutdoorunit’sfeet.
•Incoldareas,donotuseadrainsocket(A),draincaps(B)andadrainhosewiththeoutdoorunit.
(Otherwise,drainwatermayfreeze,impairingheatingperformance.)
1) Insertdrainreceiver(C)ontodrainsocket(A)anddraincap(B)beyond4
projectionsarounddrainsocketanddraincap.
2) Insertdrainsocketanddraincapsintotheirmatchingdrainhole;Drainsocket
(A)intodrainholeIanddraincaps(B)intotheotherdrainholes.After
insertion,turnthemabout40°clockwise.
(A) Drain socket
Projections
(B) Drain cap
Projections
(Besurenottoinsertthemintowrongdrain
holes,ortherecauseswaterleakage.)
I
(Viewfrombottom)
(C) Drain receiver
NOTE
Checkthatthedrainreceiver(C)iscorrectlyengagedwiththeprojectionsofthedrainsocket(A)anddraincap(B).
Otherwise,waterleakagemayresult.
Projections
(4 points)
Projections
(4 points)
3) C
onnectvinylhoseonthemarket(internaldiameterof1inch(25mm))todrainsocket(A).
(Ifthehoseistoolongandhangsdown,fixitcarefullytopreventthekinks.)
4) Makesurethatthereisnowaterleakagefromthedrainholes.
NOTE
Ifthedrainholesoftheoutdoorunitarecoveredwiththemountingbracketorthefloor,raisetheunittoprovidethespaceof
morethan3-15/16inch(100mm)underthelegoftheoutdoorunit.
■English
01_EN_3P300674-3B.indd 5
5
8/28/2012 6:26:53 PM
Outdoor Unit Installation
3.
Flaring the pipe end
1) Cutthepipeendwithapipecutter.
2) Removeburrswiththecutsurfacefacing
downwardsothatthechipsdonotenterthepipe.
3) Puttheflarenutonthepipe.
4) Flarethepipe.
5) Checkthattheflaringisproperlymade.
(Cut exactly at
right angles.)
Flaring
Set exactly at the position shown below.
A
Die
A
Remove burrs.
Flare tool for R410A
Conventional flare tool
Clutch-type
Clutch-type (Rigid-type) Wing-nut type (Imperial-type)
0-0.020 inch
(0-0.5mm)
0.039-0.059 inch
(1.0-1.5mm)
Check
Flare’s inner surface
must be flaw-free.
0.059-0.079 inch
(1.5-2.0mm)
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.
4.
Refrigerant piping
CAUTION
•Usetheflarenutfixedtothemainunittopreventitfromcrackinganddeterioratingfromage.
•Topreventgasleakage,applyrefrigerationoilonlytotheinnersurfaceoftheflare.(UserefrigerationoilforR410A.)
•Usetorquewrencheswhentighteningtheflarenutstopreventdamagetotheflarenutsandgasleakage.
• 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.
[Apply oil]
Do not apply refrigeration
oil to the outer surface.
Apply refrigeration oil to
the inner surface of the
flare.
Flare nut
Do not apply refrigeration oil to
the flare nut to avoid tightening
with excessive torque.
Flare nut tightening torque
Valve cap tightening torque
Gas side
Liquid side
Gas side
Liquid side
5/8 inch (15.9mm)
3/8 inch (9.5mm)
5/8 inch (15.9mm)
3/8 inch (9.5mm)
45.6-55.6ft • lbf
24.1-29.4ft • lbf
35.5-44.0ft • lbf
15.9-20.2ft • lbf
(61.8-75.4N • m)
(32.7-39.9N • m)
(48.1-59.7N • m)
(21.6-27.4N • m)
Service port cap tightening torque
7.9-10.8ft • lbf
(10.8-14.7N • m)
6
01_EN_3P300674-3B.indd 6
■English
8/28/2012 6:26:53 PM
5.
Purging air and checking gas leakage
WARNING
•Donotmixanysubstanceotherthanthespecifiedrefrigerant(R410A)intotherefrigerationcycle.
•Whenrefrigerantgasleaksoccur,ventilatetheroomassoonandasmuchaspossible.
•R410A,aswellasotherrefrigerants,shouldalwaysberecoveredandneverbereleaseddirectlyintotheenvironment.
•UseavacuumpumpforR410Aexclusively.Usingthesamevacuumpumpfordifferentrefrigerantsmaydamagethevacuum
pumportheunit.
•Whenpipingworkiscompleted,itisnecessarytopurgetheairandcheckforgas
leakage.
•Ifusingadditionalrefrigerant,performairpurgingfromtherefrigerantpipesandindoor
unitusingavacuumpump,thenchargeadditionalrefrigerant.
•Useahexagonalwrench(3/16inch(4mm))tooperatethestopvalverod.
•Allrefrigerantpipejointsshouldbetightenedwithatorquewrenchatthespecified
tighteningtorque.
Compound
Pressure meter
pressure gauge
Gauge
manifold
Low-pressure
valve
Charging
hoses
High-pressure
valve Valve caps
Liquid
stop
valve
Gas
stop
Vacuum pump Service port valve
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.Check
allpipejointsandretightennutsasneeded,thenrepeatsteps2)through4).
■English
01_EN_3P300674-3B.indd 7
7
8/28/2012 6:26:53 PM
Outdoor Unit Installation
6.
Refilling the refrigerant
Checkthetypeofrefrigeranttobeusedonthemachinenameplate.
Precautions when adding R410A
Fill from the gas pipe in liquid form.
Itisamixedrefrigerant,soaddingitingasformmaycausetherefrigerantcompositiontochange,preventingnormaloperation.
1) Beforefilling,checkwhetherthecylinderhasasiphonattachedornot.(Itshouldhavesomethinglike“liquidfillingsiphon
attached”displayedonit.)
Filling a cylinder with an attached siphon
Filling other cylinders
Stand the cylinder upright when
filling.
Turn the cylinder upside-down
when filling.
There is a siphon pipe inside, so the
cylinder need not be upside-down to
fill with liquid.
•BesuretousetheR410Atoolstoensurepressureandtopreventforeignobjectsentering.
7.
Refrigerant piping work
7-1 Caution on pipe handling
1) Protecttheopenendofthepipeagainstdustandmoisture.
2) Allpipebendsshouldbeasgentleaspossible.Useapipebenderfor
bending.
Rain
7-2 Selection of copper and heat insulation materials
If no flare cap is
available, cover the
flare mouth with
tape to keep dirt or
water out.
Whenusingcommercialcopperpipesandfittings,observethefollowing:
1) Insulationmaterial:Polyethylenefoam
Heattransferrate:0.041to0.052W/mK(0.024to0.030Btu/fth°F(0.035to0.045kcal/mh°C))
BesuretouseinsulationthatisdesignedforusewithHVACSystems.
2) Besuretoinsulateboththegasandliquidpipingandtoprovideinsulation
dimensionsasbelow.
Gasside
Liquidside
O.D.5/8inch
O.D.3/8inch
(15.9mm)
(9.5mm)
Minimumbendradius
1-15/16inch(50mm) 1-3/16inch(30mm)
ormore
ormore
Thickness
Thickness
0.039inch(1.0mm) 0.031inch(0.8mm)
(C1220T-O)
(C1220T-O)
Wall
Be sure to
place a cap.
Gaspipethermal
Liquidpipethermal
insulation
insulation
I.D.5/8-25/32inch I.D.15/32-19/32inch
(12-15mm)
(16-20mm)
Thickness13/32inch(10mm)Min.
Inter-unit wire
Gas pipe
Gas pipe
insulation
Liquid pipe
Liquid pipe
insulation
Finishing tape
Drain hose
•Useseparatethermalinsulationpipesforgasandliquidrefrigerantpipes.
8
01_EN_3P300674-3B.indd 8
■English
8/28/2012 6:26:54 PM
Pump Down Operation
In order to protect the environment, be sure to pump down when relocating or disposing of the unit.
1)
2)
3)
4)
Removethevalvecapfromliquidstopvalveandgasstopvalve.
Carryoutforcedcoolingoperation.
After5to10minutes,closetheliquidstopvalvewithahexagonalwrench.
After2to3minutes,closethegasstopvalveandstopforcedcoolingoperation.
Service port
Hexagonal
wrench
Close
Gas stop valve
Liquid stop valve
valve cap
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)
2)
3)
4)
•
Press“MODE”buttonandselectthecoolingmode.
Press“ON/OFF”buttontoturnonthesystem.
Pressbothof“TEMP”buttonand“MODE”buttonatthesametime.
Press“MODE”buttontwice.( willbedisplayedandtheunitwillenterforcedcoolingoperation.)
Forcedcoolingoperationwillstopautomaticallyafteraround30minutes.
Tostoptheoperaion,press“ON/OFF”button.
Wiring
WARNING
•Donotusetappedwires,strandedwires,extensioncords,orstarburstconnections,astheymaycauseoverheating,
electricalshock,orfire.
•Donotuselocallypurchasedelectricalpartsinsidetheproduct.(Donotbranchthepowerforthedrainpump,etc.,fromthe
terminalblock.)Doingsomaycauseelectricshockorfire.
•Besuretoinstallagroundfaultcircuitinterrupterbreaker.(Onethatcanhandlehigherharmonics.)
(Thisunitusesaninverter,whichmeansthatitmustbeusedagroundfaultcircuitinterrupterbreakercapablehandling
harmonicsinordertopreventmalfunctioningofthegroundfaultcircuitinterrupterbreakeritself.)
•Useanall-poledisconnectiontypebreakerwithatleast1/8inch(3mm)betweenthecontactpointgaps.
•Whencarryingoutwiringconnection,takecarenottopullattheconduit.
•Donotconnectthepowerwiretotheindoorunit.Doingsomaycauseelectricshockorfire.
•Donotturnonthesafetybreakeruntilallworkiscompleted.
1) Striptheinsulationfromthewire(3/4inch(20mm)).
2) Connecttheconnectionwiresbetweenthe
indoorandoutdoorunitssothattheterminal
numbersmatch.Tightentheterminalscrews
securely.Werecommendaflathead
screwdriverbeusedtotightenthescrews.
Firmly fix the wires with
the terminal screws.
Use AWG16 if the connection wire
length is less than 32.8ft (10m), or
AWG14 if it is 32.8ft (10m) or more.
Indoor
unit
1
2
3
Outdoor unit
1 23
L1 L2 GR
Use AWG 14 wires.
Safety
breaker
20A
Ground fault
circuit interrupter
Power supply
60Hz 208-230V
Ground
■English
01_EN_3P300674-3B.indd 9
9
8/28/2012 6:26:54 PM
Wiring
<Methodofmountingconduit>
Passwiresthroughtheconduitandsecurethemwithalocknut.
Lock nut
Wire retainer
Conduit mounting plate
Service port
Conduit mounting plate
Conduit
1/2 inch (21.3mm)
Power supply terminal block
1
2
3
L1
L2
D Binding band
(Accessory)
C Tube
(Accessory)
Secure the wires firmly
using the binding band, as
shown in the figure.
Secure firmly, making sure
no outside pressure is
exerted on the terminals.
• Use the specified wires and
connect them securely.
• Shape the wires so that there
is no lifting of the service hatch
or other structural parts.
Observethenotesmentionedfollowingwhenwiringtothepowersupplyterminalblock.
Precautionstobetakenforpowersupplywiring.
10
01_EN_3P300674-3B.indd 10
■English
8/28/2012 6:26:55 PM
CAUTION
•Whenconnectingtheconnectionwirestotheterminalblock
usingasinglecorewire,besuretoperformcurling.
Problemswiththeworkmaycauseheatandfires.
Good
Wrong
Stripping wire at terminal block
•Ifthestrandedwiresmustbeused,makesuretousetheround
crimp-styleterminalforconnectiontothepowersupplyterminal
block.Placetheroundcrimp-styleterminalsonthewiresupto
thecoveredpartandsecureinplace.
Round crimp-style
terminal
Stranded wire
•Groundterminalinstallation
Usethefollowingmethodwheninstallingthe
roundcrimp-styleterminal.
Good
Screw
Screw
Round crimpstyle terminal
Flat washer
Flat washer
Wrong
Round crimpstyle terminal
3) Pullthewireandmakesurethatitdoesnotdisconnect.Thenfixthewireinplacewithawirestop.
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.
1) Youcanexpandtheoperationrangeto14°F(–10°C)byturningonswitchB(SW4)onthePCB.Iftheoutdoortemperaturefalls
to–0.4°F(–18°C)orlower,theoperationwillstop.Iftheoutdoortemperaturerises,theoperationwillstartagain.
S102
S2
ON
A B CD
LED-A
Turn on
switch B.
SW4
SW1
CAUTION
•Iftheoutdoorunitisinstalledwheretheheatexchangeroftheunitisexposedtodirectwind,provideawindbreakwall.
•Intermittentnoisesmaybeproducedbytheindoorunitduetotheoutdoorfanturningonandoffwhenusingfacilitysettings.
•Donotplacehumidifiersorotheritemswhichmightraisethehumidityinroomswherefacilitysettingsarebeingused.
Ahumidifiermightcausedewcondensationfromtheindoorunitoutletvent.
•Usetheindoorunitatthehighestlevelofairflowrate.
■English
01_EN_3P300674-3B.indd 11
11
8/28/2012 6:26:55 PM
Trial Operation and Testing
1.
Trial operation and testing
1-1Measurethesupplyvoltageandmakesurethatitfallsinthespecifiedrange.
1-2Trialoperationshouldbecarriedoutineithercoolingorheatingmode.
■ Forheatpump
•Incoolingmode,selectthelowestprogrammabletemperature;inheatingmode,selectthehighestprogrammable
temperature.
1) Trialoperationmaybedisabledineithermodedependingontheroomtemperature.
2) Aftertrialoperationiscomplete,setthetemperaturetoanormallevel(78°Fto82°F(26°Cto28°C)incoolingmode,
68°Fto75°F(20°Cto24°C)inheatingmode).
3) Forprotection,thesystemdisablesrestartoperationfor3minutesafteritisturnedoff.
■ Forcoolingonly
•Selectthelowestprogrammabletemperature.
1) Trialoperationincoolingmodemaybedisableddependingontheroomtemperature.
2) Aftertrialoperationiscomplete,setthetemperaturetoanormallevel(78°Fto82°F(26°Cto28°C)).
3) Forprotection,thesystemdisablesrestartoperationfor3minutesafteritisturnedoff.
1-3Carryoutthetestoperationinaccordancewiththeoperationmanualtoensurethatallfunctionsandparts,
suchasfinmovement,areworkingproperly.
•Theairconditionerrequiresasmallamountofpowerinitsstandbymode.Ifthesystemisnottobeusedforsome
timeafterinstallation,shutoffthecircuitbreakertoeliminateunnecessarypowerconsumption.
•Ifthecircuitbreakertripstoshutoffthepowertotheairconditioner,thesystemwillrestoretheoriginaloperation
modewhenthecircuitbreakerisopenedagain.
2.
Test items
Testitems
Symptom
Indoorandoutdoorunitsareinstalledproperlyonsolidbases.
Fall,vibration,noise
Norefrigerantgasleaks.
Incompletecooling/heating
function
Refrigerantgasandliquidpipesandindoordrainhoseextensionare
thermallyinsulated.
Waterleakage
Draininglineisproperlyinstalled.
Waterleakage
Systemisproperlygrounded.
Electricalleakage
Thespecifiedwiresareusedforinter-unitwiring.
Inoperativeorburndamage
Indoororoutdoorunit’sairinletorairoutlethasclearpathofair.
Stopvalvesareopened.
Incompletecooling/heating
function
Indoorunitproperlyreceivesremotecontrolcommands.
Inoperative
12
01_EN_3P300674-3B.indd 12
Check
■English
8/28/2012 6:26:55 PM
Two-dimensional bar code is a code
for manufacturing.
3P300674-3B
00_CV_3P300674-3B.indd 2
M11B136B
(1209) HT
8/30/2012 9:26:49 AM