Daikin RXS12LVJU Installation guide
- Category
- Split-system air conditioners
- Type
- Installation guide
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Installation manual
R410A Split series
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Manual de instalación
Serie Split R410A
INSTALLATION
MANUAL
R410A Split Series
Models
RXS09LVJU
RXS12LVJU
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Safety Precautions
•ReadtheseSafetyPrecautionscarefullytoensurecorrectinstallation.
•ThismanualclassiestheprecautionsintoDANGER,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.
Refrigerantgasmayproduceatoxicgasifitcomesincontactwithresuchasfromafanheater,stoveorcookingdevice.
Exposuretothisgascouldcausesevereinjuryordeath.
•Aftercompletingtheinstallationwork,checkthattherefrigerantgasdoesnotleak.
Refrigerantgasmayproduceatoxicgasifitcomesincontactwithresuchasfromafanheater,stoveorcookingdevice.
Exposuretothisgascouldcausesevereinjuryordeath.
•Donotgroundunitstowaterpipes,telephonewiresorlightningrodsbecauseincompletegroundingcouldcausea
severeshockhazardresultinginsevereinjuryordeath,andtogaspipesbecauseagasleakcouldresultinan
explosionwhichcouldleadtosevereinjuryordeath.
•Safelydisposeofthepackingmaterials.
Packingmaterials,suchasnailsandothermetalorwoodenparts,maycausestabsorotherinjuries.
Tearapartandthrowawayplasticpackagingbagssothatchildrenwillnotplaywiththem.
Childrenplayingwithplasticbagsfacethedangerofdeathbysuffocation.
•Donotinstallunitinanareawhereammablematerialsarepresentduetoriskofexplosionresultinginserious
injuryordeath.
•Donotgroundunitstotelephonewiresorlightningrodsbecauselightningstrikescouldcauseasevereshock
hazardresultinginsevereinjuryordeath,andtogaspipesbecauseagasleakcouldresultinanexplosionwhich
couldleadtosevereinjuryordeath.
WARNING
•Installationshallbelefttotheauthorizeddealeroranothertrainedprofessional.
Improperinstallationmaycausewaterleakage,electricalshock,re,orequipmentdamage.
•Installtheairconditioneraccordingtotheinstructionsgiveninthismanual.
Incompleteinstallationmaycausewaterleakage,electricalshock,reorequipmentdamage.
•Besuretousethesuppliedorexactspeciedinstallationparts.
Useofotherpartsmaycausetheunittocometofall,waterleakage,electricalshock,reorequipmentdamage.
•Installtheairconditioneronasolidbasethatislevelandcansupporttheweightoftheunit.
Aninadequatebaseorincompleteinstallationmaycauseinjuryorequipmentdamageintheeventtheunitfallsoffthebaseorcomesloose.
•Electricalworkshallbecarriedoutinaccordancewiththeinstallationmanualandthenational,stateandlocal
electricalwiringcodes.
Insufcientcapacityorincompleteelectricalworkmaycauseelectricalshock,reorequipmentdamage.
•Besuretouseadedicatedpowercircuit.Neveruseapowersupplysharedbyanotherappliance.
Followallappropriateelectricalcodes.
•Forwiring,useawireorcablelongenoughtocovertheentiredistancewithnosplicesifpossible.
Donotuseanextensioncord.Donotputotherloadsonthepowersupply.
Useanonlyaseparatededicatedpowercircuit.
(Failuretodosomaycauseabnormalheat,electricshock,reorequipmentdamage.)
•Usethespeciedtypesofwiresforelectricalconnectionsbetweentheindoorandoutdoorunits.
Followallstateandlocalelectricalcodes.
Firmlyclamptheinter-unitwiresotheirterminalsreceivenoexternalstresses.
Incompleteconnectionsorclampingmaycauseterminaloverheating,reorequipmentdamage.
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Safety Precautions
WARNING
•Afterconnectingallwiresbesuretoshapethecablessothattheydonotputunduestressontheelectricalcovers,
panelsorterminals.
Installcoversoverthewires.Incompletecoverinstallationmaycauseterminaloverheating,electricalshock,reorequipmentdamage.
•Wheninstallingorrelocatingthesystem,besuretokeeptherefrigerantcircuitfreefromallsubstancesotherthan
thespeciedrefrigerant(R410A),suchasair.
(Anypresenceofairorotherforeignsubstanceintherefrigerantcircuitcausesanabnormalpressurerisewhichmayresultinrupture,resulting
ininjury.)
•Duringpump-down,stopthecompressorbeforeremovingtherefrigerantpiping.
Ifthecompressorisstillrunningandthestopvalveisopenduringpump-down,airwillbesuckedinwhentherefrigerantpipingisremoved,
causingabnormallyhighpressurewhichcouldleadtoequipmentdamageorandpersonalinjury.
•Duringinstallation,attachtherefrigerantpipingsecurelybeforerunningthecompressor.
Iftherefrigerantpipesarenotattachedandthestopvalveisopenduringinstallation,airwillbesuckedinwhenthecompressorisrun,causing
abnormallyhighpressurewhichcouldleadtoequipmentdamageandpersonalinjury.
•Besuretoinstallagroundfaultcircuitinterrupterbreaker.
Failuretoinstallagroundfaultcircuitinterrupterbreakermayresultinelectricallyshocks,orrepersonalinjury.
CAUTION
•Donotinstalltheairconditionerwheregasleakagewouldbeexposedtoopenames.
Ifthegasleaksandbuildsuparoundtheunit,itmaycatchre.
•Establishdrainpipingaccordingtotheinstructionsofthismanual.
Inadequatepipingmaycausewaterdamage.
•Tightenthearenutaccordingtothespeciedtorque.Atorquewrenchshouldbeused.
Ifthearenutistightenedtoomuch,thearenutmaycrackovertimeandcauserefrigerantleakage.
•Donottouchtheheatexchangerns.
Improperhandlingmayresultininjury.
•Beverycarefulaboutproducttransportation.
SomeproductsusePPbandsforpackaging.DonotuseanyPPbandsforameansoftransportation.Itisdangerous.
•Makesuretoprovideforadequatemeasuresinordertopreventthattheoutdoorunitbeusedasashelterbysmall
animals.
Smallanimalsmakingcontactwithelectricalpartscancausemalfunctions,smokeorre.Pleaseinstructthecustomertokeeptheareaaround
theunitclean.
•Thetemperatureofrefrigerantcircuitwillbehigh,pleasekeeptheinter-unitwireawayfromcopperpipesthatare
notthermallyinsulated.
•ElectricalworkmustbeperformedinaccordancewiththeNEC/CECbyauthorizedpersonnelonly.
Accessories
Accessoriessuppliedwiththeoutdoorunit:
Installationmanual 1
Drainplug
Thedrainplugislocatedinthebottomofthe
packingcase.
1
A
B
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Precautions for Selecting the Location
1) Chooseaplacesolidenoughtobeartheweightandvibrationoftheunit,wheretheoperationsoundswillnotbeamplied.
2)
Choosealocationwherethehotairdischargedfromtheunitortheoperationsoundswillnotdisturbtheneighborsoftheuser.
3)
Avoidinstallingnearbedroomssothatoperationsoundswillnotbeaproblem.
4)
Theremustbesufcientspaceforcarryingtheunitintoandoutofthesite.
5)
Theremustbesufcientspaceforairpassageandnoobstructionsaroundtheairinletandtheairoutlet.
6)
Thesitemustbefreefromthepossibilityofammablegasleakageinanearbyplace.
7)
Installunits,powercordsandinter-unitwireatleast10ft(3m)awayfromtelevisionandradiosets.Thisistopreventinterference
toimagesandsounds.(Noisesmaybeheardeveniftheyaremorethan10ft(3m)awaydependingonradiowaveconditions.)
8)
Incoastalareasorotherplaceswithsaltyatmosphereofsulfategas,corrosionmayshortenthelifeoftheairconditioner.
9)
Sincedrainowsoutoftheoutdoorunit,donotplaceanythingundertheunitwhichmustbekeptawayfrommoisture.
NOTE
Cannotbeinstalledhangingfromceilingorstacked.
CAUTION
Whenoperatingtheairconditionerinalowoutdoorambient
temperature,besuretofollowtheinstructionsdescribedbelow.
•To preventexposuretowind,installtheoutdoorunitwithitssuction
sidefacingthewall.
•Neverinstalltheoutdoorunitatasitewherethesuctionsidemay
beexposeddirectlytowind.
•To preventexposuretowind,itisrecommendedtoinstallabafe
plateontheairdischargesideoftheoutdoorunit.
•Inheavysnowfallareas,selectaninstallationsitewherethesnow
willnotaffecttheunit.
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
9-7/8 (250) from wall
How to remove the stop
valve cover.
Remove the screw on the
stop valve cover.
Slide the lid downward
to remove it.
How to attach the stop
valve cover.
Insert the upper part of
the stop valve cover into the
outdoor unit to install.
Tighten the screws.
Stop valve cover
Allow space for piping
and electrical servicing.
(Foot bolt-hole
centers)
CAUTION
**Set the piping length
from 4.92ft (1.5m) to
65.6ft (20m).
Where there is a danger of
the unit falling, use foot bolts,
or wires.
In sites with poor drainage,
use block bases for outdoor
unit.
Adjust foot height until the
unit is leveled. Otherwise,
water leakage or pooling of
water may occur.
(Foot bolt-hole centers)
(From unit’s side)
Max. allowable piping height
Min. allowable piping length
Max. allowable piping length 65.6ft (20m)
4.92ft (1.5m)
49.2ft (15m)
Liquid pipe
Gas pipe
O.D. 1/4 inch (6.4mm)
O.D. 3/8 inch (9.5mm)
0.21oz/ft (20g/m)
Additional refrigerant
required for refrigerant
pipe exceeding
32.8ft (10m) in length.
**
*
*
Be sure to add the proper amount of additional refrigerant.
Failure to do so may result in reduced performance.
**
The suggested shortest pipe length is 4.92ft (1.5m), in order to avoid
noise from the outdoor unit and vibration.
(Mechanical noise and vibration may occur depending on how
the unit is installed and the environment in which it is used.)
When connecting the FDXS12 indoor unit, the shortest piping length
should be no less than 9.84ft (3m).
unit : inch (mm)
22-5/8 (574)
4-1/8
(105.5)
12-1/4 (311)
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.
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Installation Guidelines
•Whereawallorotherobstacleisinthepathofoutdoorunit’sinletoroutletairow,followtheinstallationguidelinesbelow.
•Foranyofthebelowinstallationpatterns,thewallheightontheoutletsideshouldbe47-1/4inch(1200mm)orless.
More than
1-15/16 (50)
More than
3-15/16 (100)
Side view
47-1/4
(1200)
or less
More than
1-15/16 (50)
More than
1-15/16 (50)
More than
5-7/8 (150)
Top view
More than
3-15/16 (100)
Top view
unit: inch (mm)
More than 5-7/8 (150)
More than 11-13/16 (300)
More than
1-15/16 (50)
Wall facing one side Walls facing two sides
Walls facing three sides
Precautions on Installation
•
Checkthestrengthandleveloftheinstallationgroundsothattheunitwillnotcauseanyoperatingvibrationornoiseafterinstalled.
•Inaccordancewiththefoundationdrawing,xtheunitsecurelybymeansofthefoundationbolts.(Prepare4setsofM8orM10
foundationbolts,nutsandwasherseachwhichareavailableonthemarket.)
•Itisbesttoscrewinthefoundationboltsuntiltheirendsare3/4inch(20mm)fromthefoundationsurface.
3/4 inch
(20mm)
Outdoor Unit Installation
1. Installing outdoor unit
1)
Wheninstallingtheoutdoorunit,referto“PrecautionsforSelectingtheLocation”andthe“OutdoorUnitInstallationDrawings”.
2) Ifdrainworkisnecessary,followtheproceduresbelow.
2. Drain work
1) Usedrainplugfordrainage.
2) Ifthedrainportiscoveredbyamountingbaseoroorsurface,place
additionalfootbasesofatleast1-1/4inch(30mm)inheightundertheoutdoor
unit’sfeet.
3) Incoldareas,donotuseadrainhosewiththeoutdoorunit.
(Otherwise,drainwatermayfreeze,impairingheatingperformance.)
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) Cutthepipeendwithapipecutter.
2) Removeburrswiththecutsurfacefacing
downwardsothatthechipsdonotenterthepipe.
3) Putthearenutonthepipe.
4) Flarethepipe.
5) Checkthatthearingisproperlymade.
WARNING
•Donotusemineraloilonaredpart.
•Preventmineraloilfromgettingintothesystemasthiswouldreducethelifetimeoftheunits.
•Neverusepipingwhichhasbeenusedforpreviousinstallations.Onlyusepartswhicharedeliveredwiththeunit.
•NeverinstalladriertothisR410Aunitinordertoguaranteeitslifetime.
•Thedryingmaterialmaydissolveanddamagethesystem.
•Incompletearingmaycauserefrigerantgasleakage.
4. Refrigerant piping
CAUTION
•Usethearenutxedtothemainunittopreventitfromcrackinganddeterioratingfromage.
•To preventgasleakage,applyrefrigerationoilonlytotheinnersurfaceoftheare.(UserefrigerationoilforR410A.)
•Usetorquewrencheswhentighteningthearenutstopreventdamagetothearenutsandgasleakage.
Flare nut tightening torque
Liquid side
1/4 inch (6.4mm)
10.4-12.7ft • lbf
(14.2-17.2N • m)
Gas side
3/8 inch (9.5mm)
24.1-29.4ft • Ibf
(32.7-39.9N • m)
Valve cap tightening torque
Liquid side
1/4 inch (6.4mm)
15.9-20.2ft • Ibf
(21.6-27.4N • m)
Gas side
3/8 inch (9.5mm)
15.9-20.2ft • Ibf
(21.6-27.4N • m)
Do not apply refrigeration
oil to the outer surface.
Flare nut
Apply refrigeration oil to
the inner surface of the
flare.
Do not apply refrigeration oil to
the flare nut to avoid tightening
with excessive torque.
[Apply oil]
• Align the centers of both flares and tighten the flare
nuts 3 or 4 turns by hand. Then tighten them fully with
the torque wrenches.
Service port cap tightening torque
7.9-10.8ft • lbf
(10.8-14.7N • m)
(Cut exactly at
right angles.)
Remove burrs.
Set exactly at the position shown below.
A
Flaring
Die
Check
Flare’s inner surface
must be flaw-free.
The pipe end must
be evenly flared in a
perfect circle.
Make sure that the
flare nut is fitted.
A
0-0.020 inch
(0-0.5mm)
Clutch-type
Flare tool for R410A
0.039-0.059 inch
(1.0-1.5mm)
Clutch-type (Rigid-type)
0.059-0.079 inch
(1.5-2.0mm)
Wing-nut type (Imperial-type)
Conventional flare tool
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5. Purging air and checking gas leakage
WARNING
•Donotmixanysubstanceotherthanthespeciedrefrigerant(R410A)intotherefrigerationcycle.
•Whenrefrigerantgasleaksoccur,ventilatetheroomassoonandasmuchaspossible.
•R410A,aswellasotherrefrigerants,shouldalwaysberecoveredandneverbereleaseddirectlyintotheenvironment.
•
UseavacuumpumpforR410Aexclusively.Usingthesamevacuumpumpfordifferentrefrigerantsmaydamagethevacuum
pumportheunit.
•Whenpipingworkiscompleted,itisnecessarytopurgetheairandcheckfor
gasleakage.
•Ifusingadditionalrefrigerant,performairpurgingfromtherefrigerantpipes
andindoorunitusingavacuumpump,thenchargeadditionalrefrigerant.
•Useahexagonalwrench(3/16inch(4mm))tooperatethestopvalverod.
•Allrefrigerantpipejointsshouldbetightenedwithatorquewrenchatthe
speciedtighteningtorque.
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) Tu r ntheliquidstopvalve’srod90degreescounterclockwisewithahexagonalwrenchtoopenvalve.
Closeitafter5seconds,andcheckforgasleakage.
Usingsoapywater,checkforgasleakagefromindoorunit’sareandoutdoorunit’sareandvalverods.
Afterthecheckiscomplete,wipeallsoapywateroff.
7) Disconnectcharginghosefromgasstopvalve’sserviceport,thenfullyopenliquidandgasstopvalves.
(Donotattempttoturnvalverodbeyonditsstop.)
8) Tightenvalvecapsandserviceportcapsfortheliquidandgasstopvalveswithatorquewrenchatthespeciedtorques.
*1.Pipelengthvs.vacuumpumpruntime
Pipelength Upto49.2ft(15m) Morethan49.2ft(15m)
Runtime Notlessthan10min. Notlessthan15min
*2.Ifthecompoundpressuregaugepointerswingsback,refrigerantmayhavewatercontentoraloosepipejointmayexists.Check
allpipejointsandretightennutsasneeded,thenrepeatsteps2)through4).
Gauge
manifold
Compound
pressure gauge
Pressure meter
Low-pressure
valve
High-pressure
valve
Charging
hoses
Vacuum pump
Valve caps
Service port
Liquid
stop
valve
Gas
stop
valve
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Outdoor Unit Installation
6. Relling the refrigerant
Checkthetypeofrefrigeranttobeusedonthemachinenameplate.
Precautions when adding R410A
Fill from the gas pipe in liquid form.
Itisamixedrefrigerant,soaddingitingasformmaycausetherefrigerantcompositiontochange,preventingnormaloperation.
1) Beforelling,checkwhetherthecylinderhasasiphonattachedornot.(Itshouldhavesomethinglike“liquidllingsiphon
attached”displayedonit.)
Filling a cylinder with an attached siphon
Stand the cylinder upright when
filling.
There is a siphon pipe inside, so the
cylinder need not be upside-down to
fill with liquid.
Filling other cylinders
Turn the cylinder upside-down
when filling.
•BesuretousetheR410Atoolstoensurepressureandtopreventforeignobjectsentering.
7. Refrigerant piping work
7-1 Caution on pipe handling
1) Protecttheopenendofthepipeagainstdustandmoisture.
2) Allpipebendsshouldbeasgentleaspossible.Useapipebenderfor
bending.
7-2 Selection of copper and heat insulation materials
Whenusingcommercialcopperpipesandttings,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
Gaspipethermal
insulation
Liquidpipethermal
insulation
O.D.3/8inch
(9.5mm)
O.D.1/4inch
(6.4mm)
I.
D.15/32-19/32inch
(12-15mm)
I.D.5/16-13/32inch
(8-10mm)
Minimumbendradius Thickness13/32inch(10mm)Min.
1-3/16inch(30mm)ormore
Thickness0.031inch(0.8mm)(C1220T-O)
•Useseparatethermalinsulationpipesforgasandliquidrefrigerantpipes.
Wall
If no flare cap is
available, cover the
flare mouth with
tape to keep dirt or
water out.
Be sure to
place a cap.
Rain
Gas 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) Removethevalvecapfromliquidstopvalveandgasstop
valve.
2) Carryoutforcedcoolingoperation.
3) After5to10minutes,closetheliquidstopvalvewitha
hexagonalwrench.
4) After2to3minutes,closethegasstopvalveandstopforced
coolingoperation.
Forced cooling operation
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Using the indoor unit ON/OFF switch
PresstheindoorunitON/OFFswitchforatleast5seconds.(Theoperationwillstart.)
• Forcedcoolingoperationwillstopautomaticallyafteraround15minutes.
To stoptheoperation,presstheindoorunitON/OFFswitch.
■
Using the indoor unit’s remote controller
1) Press“MODE”buttonandselectthecoolingmode.
2) Press“ON/OFF”buttontoturnonthesystem.
3) Pressbothof“TEMP”buttonand“MODE”buttonatthesametime.
4) Press“MODE”buttontwice.(
willbedisplayedandtheunitwillenterforcedcoolingoperation.)
• Forcedcoolingoperationwillstopautomaticallyafteraround30minutes.
To stoptheoperaion,press“ON/OFF”button.
Wiring
WARNING
•Donotusetappedwires,strandedwires,extensioncords,orstarburstconnections,astheymaycauseoverheating,
electricalshock,orre.
•Donotuselocallypurchasedelectricalpartsinsidetheproduct.(Donotbranchthepowerforthedrainpump,etc.,fromthe
terminalblock.)Doingsomaycauseelectricshockorre.
•Besuretoinstallagroundfaultcircuitinterrupterbreaker.(Onethatcanhandlehigherharmonics.)
(Thisunitusesaninverter,whichmeansthatitmustbeusedagroundfaultcircuitinterrupterbreakercapablehandling
harmonicsinordertopreventmalfunctioningofthegroundfaultcircuitinterrupterbreakeritself.)
•Useanall-poledisconnectiontypebreakerwithatleast1/8inch(3mm)betweenthecontactpointgaps.
•Whencarryingoutwiringconnection,takecarenottopullattheconduit.
•Donotconnectthepowerwiretotheindoorunit.Doingsomaycauseelectricshockorre.
•Donotturnonthesafetybreakeruntilallworkiscompleted.
1)
Striptheinsulationfromthewire(3/4inch(20mm)).
2) Connecttheconnectionwiresbetweenthe
indoorandoutdoorunitssothattheterminal
numbersmatch.Tightentheterminalscrews
securely.Werecommendaathead
screwdriverbeusedtotightenthescrews.
Gas stop valve
Valve cap
Hexagonal wrench
Close
Liquid stop valve
Service port
1
2
3
123
L1L2
GR
Safety
breaker
15A
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
<Methodofmountingconduit>
1) Passwiresthroughtheconduitandsecurethemwithalocknut.
2) Aftercompletingthework,reattachtheconduitmountingcoverandtheprotectionplatetoitsoriginalposition.
1 2 3
1 2 3
Power supply
terminal block
Shape wires so
that the service
lid and stop
valve cover fit
securely.
Use the specified wire type and
connect it securely.
Conduit
mounting
plate
Conduit
1/2 inch
(21.3mm)
Lock nut
Observethenotesmentionedfollowingwhenwiringtothepowersupplyterminalblock.
Precautionstobetakenforpowersupplywiring.
CAUTION
•Whenconnectingtheconnectionwirestotheterminalblock
usingasinglecorewire,besuretoperformcurling.
Problemswiththeworkmaycauseheatandres.
Strip wire end
to this point.
Excessive strip length
may cause electrical
shock or leakage.
Good Wrong
•Ifthestrandedwiresmustbeused,makesuretousethe
roundcrimp-styleterminalforconnectiontothepower
supplyterminalblock.Placetheroundcrimp-style
terminalsonthewiresuptothecoveredpartandsecurein
place.
Stranded wire
Round crimp-style
terminal
3) Pullthewireandmakesurethatitdoesnotdisconnect.Thenxthewireinplacewithawirestop.
Stripping wire at terminal block
Good Wrong
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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 ofce where people occupy the space.
■
Cuttingjumper4(J4)onthecircuitboardwillexpandtheoperationrangedownto14°F(–10°C).Howeveritwillstopif
theoutdoortemperaturedropsbelow–0.4°F(–18°C)andstartbackuponcethetemperaturerisesagain.
1
2
3
S70
S40
S2
S90
J5
J4
J3
Cut J4 with nippers
or a similar tools.
CAUTION
•Iftheoutdoorunitisinstalledwheretheheatexchangeroftheunitisexposedtodirectwind,provideawindbreakwall.
•Intermittentnoisesmaybeproducedbytheindoorunitduetotheoutdoorfanturningonandoffwhenusingfacilitysettings.
•Donotplacehumidiersorotheritemswhichmightraisethehumidityinroomswherefacilitysettingsarebeingused.
Ahumidiermightcausedewcondensationfromtheindoorunitoutletvent.
•Cuttingjumper4(J4)setstheindoorfantaptothehighestposition.Notifytheuseraboutthis.
01_EN_3P300674-1B.indd 11 8/28/2012 5:51:00 PM
12
■
English
Trial Operation and Testing
1. Trial operation and testing
1-1Measurethesupplyvoltageandmakesurethatitfallsinthespeciedrange.
1-2Trialoperationshouldbecarriedoutineithercoolingorheatingmode.
•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.
1-3Carryoutthetestoperationinaccordancewiththeoperationmanualtoensurethatallfunctionsandparts,
suchasnmovement,areworkingproperly.
•Theairconditionerrequiresasmallamountofpowerinitsstandbymode.Ifthesystemisnottobeusedforsome
timeafterinstallation,shutoffthecircuitbreakertoeliminateunnecessarypowerconsumption.
•Ifthecircuitbreakertripstoshutoffthepowertotheairconditioner,thesystemwillrestoretheoriginaloperation
modewhenthecircuitbreakerisopenedagain.
2. Test items
Testitems Symptom Check
Indoorandoutdoorunitsareinstalledproperlyonsolidbases. Fall,vibration,noise
Norefrigerantgasleaks.
Incompletecooling/heating
function
Refrigerantgasandliquidpipesandindoordrainhoseextensionare
thermallyinsulated.
Waterleakage
Draininglineisproperlyinstalled. Waterleakage
Systemisproperlygrounded. Electricalleakage
Thespeciedwiresareusedforinter-unitwiring. Inoperativeorburndamage
Indoororoutdoorunit’sairinletorairoutlethasclearpathofair.
Stopvalvesareopened.
Incompletecooling/heating
function
Indoorunitproperlyreceivesremotecontrolcommands. Inoperative
01_EN_3P300674-1B.indd 12 8/28/2012 5:51:01 PM
3P300674-1B
M11B134A
(1209)
HT
Two-dimensional bar code is a code
for manufacturing.
00_CV_3P300674-1B.indd 2 8/27/2012 11:09:12 PM
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Daikin RXS12LVJU Installation guide
- Category
- Split-system air conditioners
- Type
- Installation guide
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