York VRF Floor Exposed Indoor Unit User manual

Category
Split-system air conditioners
Type
User manual
SM-18005
SERVICE MANUAL
INVERTER-DRIVEN MULTI-SPLIT SYSTEM
HEAT PUMP AIR CONDITIONERS
Service Manual
< Indoor Units >
●FloorExposedType
(H,Y,C)IFE006B21S
(H,Y,C)IFE008B21S
(H,Y,C)IFE012B21S
(H,Y,C)IFE015B21S
●FloorConcealedType
(H,Y,C)IFC006B21S
(H,Y,C)IFC008B21S
(H,Y,C)IFC012B21S
(H,Y,C)IFC015B21S
SM-18005
i
Important Notice
JohnsonControlsInc.pursuesapolicyofcontinuingimprovementindesignandperformanceinits
products.Assuch,JohnsonControlsInc.reservestherighttomakechangesatanytimewithoutprior
notice.
JohnsonControlsInc.cannotanticipateeverypossiblecircumstancethatmightinvolveapotential
hazard.
Thisheatpumpairconditioningunitisdesignedforstandardairconditioningapplicationsonly.Donot
usethisunitforanythingotherthanthepurposesforwhichitwasintendedfor.
Theinstallerandsystemspecialistshallsafeguardagainstleakageinaccordancewithlocalpipetter
andelectricalcodes.Thefollowingstandardsmaybeapplicable,iflocalregulationsarenotavailable.
InternationalOrganizationforStandardization:(ISO5149orEuropeanStandard,EN378).Nopartof
thismanualmaybereproducedinanywaywithouttheexpressedwrittenconsentofJohnsonControls
Inc.
ThisheatpumpairconditioningunitisoperatedandservicedintheUnitedStatesofAmericaand
comeswithafullcomplementoftheappropriateSafety,Danger,andCaution,warnings.
Ifyouhavequestions,pleasecontactyourdistributorordealer.
Thismanualprovidescommondescriptions,basicandadvancedinformationtomaintainandservice
thisheatpumpairconditioningunitwhichyouoperateaswellforothermodels.
Thisheatpumpairconditioningunithasbeendesignedforaspecictemperaturerange.Foroptimum
performanceandlonglife,operatethisunitwithintherangelimits.
Thismanualshouldbeconsideredasapermanentpartoftheairconditioningequipmentandshould
remainwiththeairconditioningequipment.
ii
SM-18005
Product Inspection upon Arrival
1. Uponreceivingthisproduct,inspectitforanydamagesincurredintransit.Claimsfordamage,either
apparentorconcealed,shouldbeledimmediatelywiththeshippingcompany.
2. Checkthemodelnumber,electricalcharacteristics(powersupply,voltage,andfrequencyrating),and
anyaccessoriestodetermineiftheyagreewiththepurchaseorder.
3. Thestandardutilizationforthisunitisexplainedintheseinstructions.Useofthisequipmentfor
purposesotherthanwhatitdesignedforisnotrecommended.
4. Pleasecontactyourlocalagentorcontractorasanyissuesinvolvinginstallation,performance,or
maintenancearise.Liabilitydoesnotcoverdefectsoriginatingfromunauthorizedmodications
performedbyacustomerwithoutthewrittenconsentofJohnsonControls,Inc.Performingany
mechanicalalterationsonthisproductwithouttheconsentofthemanufacturerwillrenderyourwarranty
nullandvoid.
SM-18005
iii
1. Introduction
ThisServiceManualconcentratesontheheatpumpairconditioningunits.
Readthismanualcarefullybeforeperformingservice.
2. Important Safety Instructions
Thismanualshouldbeconsideredasapermanentpartoftheairconditioningequipmentandshould
remainwiththeairconditioningequipment.
(Transportation/InstallationWork)>(RefrigerantPipingWork)>(ElectricalWiringWork)>(Ref.ChargeWork)>(Test
Run)>(User)
Signal Words
Indicatesahazardoussituationthat,ifnotavoided,couldresultindeathor
seriousinjury.
Indicatesahazardoussituationthat,ifnotavoided,couldresultinminoror
moderateinjury.
Indicatesinformationconsideredimportant,butnothazard-related
(forexample,messagesrelatingtopropertydamage).
General Precautions
Toreducetheriskofseriousinjuryordeath,readtheseinstructions
thoroughlyandfollowallwarningsorcautionsincludedinallmanualsthat
accompaniedtheproductandareattachedtotheunit.Referbacktothese
instructionsasneeded.
ThissystemshouldbeinstalledbypersonnelcertiedbyJohnsonControls,Inc.Personnelmustbe
qualiedaccordingtolocal,stateandnationalbuildingandsafetycodesandregulations.Incorrect
installationcouldcauseleaks,electricshock,reorexplosion.InareaswhereSeismic‘’Performance
requirementsarespecied,theappropriatemeasuresshouldbetakenduringinstallationtoguard
againstpossibledamageorinjurythatmightoccurinanearthquakeiftheunitisnotinstalled
correctly,injuriesmayoccurduetoafallingunit.
UseappropriatePersonalProtectiveEquipment(PPE),suchasglovesandprotectivegogglesand,
whereappropriate,haveagasmasknearby.Alsouseelectricalprotectionequipmentandtoolssuited
forelectricaloperationpurposes.Keepawetclothandareextinguishernearbyduringbrazing.Use
careinhandling,rigging,andsettingofbulkyequipment.
Whentransporting,becarefulwhenpickingup,movingandmountingtheseunits.Althoughthe
unitmaybepackedusingplasticstraps,donotusethemfortransportingtheunitfromonelocation
toanother.Donotstandonorputanymaterialontheunit.Getapartnertohelp,andbendwith
yourkneeswhenliftingtoreducestrainonyourback.Sharpedgesorthinaluminumnsontheair
conditionercancutngers,sowearprotectivegloves.
Donottouchoradjustanysafetydevicesinsidetheindoororoutdoorunits.Allsafetyfeatures,
disengagement,andinterlocksmustbeinplaceandfunctioningcorrectlybeforetheequipmentis
putintooperation.Ifthesedevicesareimproperlyadjustedortamperedwithinanyway,aserious
accidentcanoccur.Neverbypassorjump-outanysafetydeviceorswitch.
JohnsonControlswillnotassumeanyliabilityforinjuriesordamagecausedbynotfollowingsteps
outlinedordescribedinthismanual.UnauthorizedmodicationstoJohnsonControlsproductsare
prohibitedasthey…
Maycreatehazardswhichcouldresultindeath,seriousinjuryorequipmentdamage.
Willvoidproductwarranties.
Mayinvalidateproductregulatorycertications.
MayviolateOSHAstandards.
iv
SM-18005
Takethefollowingprecautionstoreducetheriskofpropertydamage.
Becarefulthatmoisture,dust,orvariantrefrigerantcompoundsnotentertherefrigerantcycleduring
installationwork.Foreignmattercoulddamageinternalcomponentsorcauseblockages.
Ifairltersarerequiredonthisunit,donotoperatetheunitwithouttheairltersetinplace.Iftheair
lterisnotinstalled,dustmayaccumulateandbreakdownmayresult.
Donotinstallthisunitinanyplacewheresilicongasescancoalesce.Ifthesilicongasmolecules
attachthemselvestothesurfaceoftheheatexchanger,thennedsurfaceswillrepelwater.Asa
result,anyamountofdrainagemoisturecondensatecanoverowfromthecondensatepanandcould
runinsideoftheelectricalbox,possiblycausingelectricalfailures.
Wheninstallingtheunitinahospitalorotherfacilitywhereelectromagneticwavesaregenerated
fromnearbymedicaland/orelectronicdevices,bepreparedfornoiseandelectronicinterference
ElectromagneticInterference(EMI).Donotinstallwherethewavescandirectlyradiateintothe
electricalbox,controllercable,orcontroller.Inverters,appliances,high-frequencymedicalequipment,
andradiocommunicationsequipmentmaycausetheunittomalfunction.Theoperationoftheunit
mayalsoadverselyaffectthesesamedevices.Installtheunitatleast10ft.(approximately3m)away
fromsuchdevices.
Whenawirelesscontrollerisused,locateatadistanceofatleast3.3ft.(approximately1m)between
theindoorunitandelectriclighting.Ifnot,thereceiverpartoftheunitmayhavedifcultyreceiving
operationcommands.
Donotinstalltheunitinanylocationwhereanimalsandplantscancomeintodirectcontactwiththe
outletairstream.Exposurecouldadverselyaffecttheanimalsandplants.
Donotinstalltheunitwithanydownwardslopetothesideofthecondensatepipe.Ifyoudo,youmay
havedrainwaterowingbackwhichmaycauseleaks.
Besurethecondensatehosedischargeswaterproperly.Ifconnectedincorrectly,itmaycauseleaks.
Donotinstalltheunitinanyplacewhereoilcanseepontotheunits,suchastableorseatingareasin
restaurants,andsoforth.Fortheselocationsorsocialvenues,usespecializedunitswithoil-resistant
featuresbuiltintothem.Inaddition,useaspecializedceilingfandesignedforrestaurantuse.These
specializedoil-resistantunitscanbeorderedforsuchapplications.However,inplaceswherelarge
quantitiesofoilcansplashontotheunit,suchasafactory,eventhespecializedunitscannotbeused.
Theseproductsshouldnotbeinstalledinsuchlocations.
Ifthewiredcontrollerisinstalledinalocationwhereelectromagneticradiationisgenerated,make
surethatthewiredcontrollerisshieldedandcablesaresleevedinsideconduittubing.
Ifthereisasourceofelectricalinterferencenearthepowersupply,installnoisesuppression
equipment(lter).
Duringthetestrun,checktheunit’soperationtemperature.Iftheunitisusedinanenvironment
wherethetemperatureexceedstheoperationboundary,itmaycauseseveredamage.Checkthe
operationaltemperatureboundaryinthemanual.Ifthereisnospeciedtemperature,usetheunit
withintheoperationaltemperatureboundaryof32to104°F(0to40°C).
ReadinstallationandappropriateusermanualsforconnectionwithPCorperipheraldevices.Ifa
warningwindowappearsonthePC,theproductstops,doesnotworkproperlyorworksintermittently,
immediatelystopusingtheequipment.
SM-18005
v
Installation Precautions
Toreducetheriskofseriousinjuryordeath,thefollowinginstallation
precautionsmustbefollowed.
Wheninstallingtheunitinto…
Awall:Makesurethewallisstrongenoughtoholdtheunit’sweight.Itmaybenecessaryto
constructastrongwoodormetalframetoprovideaddedsupport.
Aroom:Properlyinsulateanyrefrigeranttubingruninsidearoomtoprevent“sweating”thatcan
causedrippingandwaterdamagetowallandoors.
Damporunevenareas:Usearaisedconcretepadorconcreteblockstoprovideasolid,level
foundationfortheunittopreventwaterdamageandabnormalvibration.
Anareawithhighwinds:Securelyanchortheoutdoorunitdownwithboltsandametalframe.
Provideasuitablewindbafe.
Asnowyarea:Installtheoutdoorunitonaraisedplatformthatishigherthandriftingsnow.
Providesnowprotectionhood.
Iftheremotesensorsarenotusedwiththiscontroller,thendonotinstallthiscontroller…
inaroomwherethereisnothermostat.
wheretheunitisexposedtodirectsunshineordirectlight.
wheretheunitisincloseproximitytoaheatsource.
wherehot/coldairfromtheoutdoors,oradraftfromelsewhere(suchasairvents,diffusersor
grilles)canaffectaircirculation.
inareaswithpooraircirculationandventilation.
Donotinstalltheunitinthefollowingplaces.Doingsocanresultinanexplosion,re,deformation,
corrosion,orproductfailure.
Explosiveorammableatmosphere.
Wherere,oil,steam,orpowdercandirectlyentertheunit,suchasincloseproximityordirectly
aboveakitchenstove.
Whereoil(includingmachineryoil)maybepresent.
Wherecorrosivegasessuchaschlorine,bromine,orsuldecanaccumulate,suchasnearahot
tuborhotspring.
Wheredense,salt-ladenairowisheavy,suchasincoastalregions.
Wheretheairqualityisofhighacidity.
Whereharmfulgasescanbegeneratedfromdecomposition.
Donotpositionthecondensatepipefortheindoorunitnearanysanitarysewerswherecorrosive
gasesmaybepresent.Ifyoudo,toxicgasescanseepintobreathableairspacesandcancause
respiratoryinjuries.Ifthecondensatepipeisinstalledincorrectly,waterleakageanddamagetothe
ceiling,oor,furniture,orotherpossessionsmayresult.Ifcondensatepipingbecomesclogged,
moisturecanbackupandcandripfromtheindoorunit.Donotinstalltheindoorunitwheresuch
drippingcancausemoisturedamageorunevenlocations:Usearaisedconcretepadorconcrete
blockstoprovideasolid,levelfoundationfortheunittopreventwaterdamageandabnormal
vibration.
Beforeperforminganybrazingwork,besurethattherearenoammablematerialsoropenames
nearby.
Performatestruntoensurenormaloperation.Safetyguards,shields,barriers,covers,andprotective
devicesmustbeinplacewhilethecompressor/unitisoperating.Duringthetestrun,keepngersand
clothingawayfromanymovingparts.
Cleanupthesitewhennished,rememberingtocheckthatnometalscrapsorbitsofwiringhave
beenleftinsidetheunitbeinginstalled.
Duringtransportation,donotallowthebackrestoftheforkliftmakecontactwiththeunit,otherwise,
itmaycausedamagetotheheatexchangerandalsomaycauseinjurywhenstoppedorstarted
suddenly.
Removegasinsidetheclosingpipewhenthebrazingworkisperformed.Ifthebrazingllermetalis
meltedwithremaininggasinside,thepipeswillbeblownoffanditmaycauseinjury.
Besuretousenitrogengasforanairtighttest.Ifothergasessuchasoxygengas,acetylenegasor
uorocarbongasareaccidentallyused,itmaycauseexplosionorgasintoxication.
Afterinstallationworkforthesystemhasbeencompleted,explainthe“SafetyPrecautions,”theproperuse
andmaintenanceoftheunittothecustomeraccordingtotheinformationinallmanualsthatcamewiththe
system.AllmanualsandwarrantyinformationmustbegiventotheuserorleftneartheIndoorUnit.
vi
SM-18005
Refrigerant Precautions
Toreducetheriskofseriousinjuryordeath,thefollowingrefrigerant
precautionsmustbefollowed.
Asoriginallymanufactured,thisunitcontainsrefrigerantinstalledbyJohnsonControls.Johnson
Controlsusesonlyrefrigerantsthathavebeenapprovedforuseintheunit’sintendedhomecountry
ormarket.JohnsonControlsdistributorssimilarlyareonlyauthorizedtoproviderefrigerantsthat
havebeenapprovedforuseinthecountriesormarketstheyserve.Therefrigerantusedinthisunit
isidentiedontheunit’sfaceplateand/orintheassociatedmanuals.Anyadditionsofrefrigerantinto
thisunitmustcomplywiththecountry’srequirementswithregardtorefrigerantuseandshouldbe
obtainedfromJohnsonControlsdistributors.Useofanynon-approvedrefrigerantsubstituteswillvoid
thewarrantyandwillincreasethepotentialriskofinjuryordeath.
Ifinstalledinasmallroom,takemeasurestopreventtherefrigerantfromexceedingthemaximum
allowableconcentrationintheeventthatrefrigerantgasesshouldescape.Theinstallationshould
meettherequirementsinASHRAEStandards15and34.Ifrefrigerantgashasleakedduringthe
installationwork,ventilatetheroomimmediately.
Checkthedesignpressureforthisproductis601psi(4.15MPa).Thepressureoftherefrigerant
R410Ais1.4timeshigherthanthatoftherefrigerantR22.Therefore,therefrigerantpipingfor
R410AshallbethickerthanthatforR22.Makesuretousethespeciedrefrigerantpiping.Ifnot,the
refrigerantpipingmayraptureduetoanexcessiverefrigerantpressure.Besides,payattentionto
thepipingthicknesswhenusingcopperrefrigerantpiping.Thethicknessofcopperrefrigerantpiping
differsdependingonitsmaterial.
TherefrigerantR410Aisadopted.Therefrigerantoiltendstobeaffectedbyforeignmatterssuch
asmoisture,oxidelm,(orfat).Performtheinstallationworkwithcaretopreventmoisture,dust,or
differentrefrigerantfromenteringtherefrigerantcycle.Foreignmattercanbeintroducedintothecycle
fromsuchpartsasexpansionvalveandtheoperationmaybeunavailable.
Toavoidthepossibilityofdifferentrefrigerantorrefrigerantoilbeingintroducedintothecycle,the
sizesofthechargingconnectionshavebeenchangedfromR407CtypeandR22type.Itisnecessary
topreparetheappropriatetoolsbeforeperforminginstallationwork.
UserefrigerantpipesandjointswhichareapprovedforusewithR410A.
Acompressor/unitcomprisesapressurizedsystem.Neverloosenthreadedjointswhilethesystemis
underpressureandneveropenpressurizedsystemparts.
Beforeinstallationiscomplete,makesurethattherefrigerantleaktesthasbeenperformed.If
refrigerantgasesescapeintotheair,turnOFFthemainswitch,extinguishanyopenamesand
contactyourservicecontractor.Refrigerant(Fluorocarbon)forthisunitisodorless.Iftherefrigerant
shouldleakandcomeintocontactwithopenames,toxicgascouldbegenerated.Also,becausethe
uorocarbonsareheavierthanair,theysettletotheoor,whichcouldcauseasphyxiation.
Wheninstallingtheunit,andconnectingrefrigerantpiping,keepallpipingrunsasshortaspossible,
andmakesuretosecurelyconnecttherefrigerantpipingbeforethecompressorstartsoperating.If
therefrigerantpipingisnotconnectedandthecompressoractivateswiththestopvalveopened,the
refrigerantcyclecanbecomesubjectedtoextremelyhighpressure,whichcancauseanexplosionor
re.
Tightenthearenutwithatorquewrenchinthespeciedmanner.Donotapplyexcessiveforcetothe
arenutwhentightening.Ifyoudo,thearenutcancrackandrefrigerantleakagemayoccur.
Whenmaintaining,relocating,anddisposingoftheunit,dismantletherefrigerantpipingafterthe
compressorstops.
Whenpipesareremovedoutfromunderthepipingcover,aftertheinsulationworkiscompleted,
coverthegapbetweenthepipingcoverandpipesbyapacking(eld-supplied).Ifthegapisnot
covered,theunitmaybedamagedifsnow,rainwaterorsmallanimalsentertheunit.
Donotapplyanexcessiveforcetothespindlevalveattheendofopening.Otherwise,thespindle
valveiesoutduetorefrigerantpressure.Atthetestrun,fullyopenthegasandliquidvalves,
otherwise,thesedeviceswillbedamaged.(Itisclosedbeforeshipment.)
Ifthearrangementforoutdoorunitsisincorrect,itmaycauseowbackoftherefrigerantandresultin
failureoftheoutdoorunit.
Therefrigerantsystemmaybedamagediftheslopeofthepipingconnectionkitexceeds+15
o
.
SM-18005
vii
Electrical Precautions
Takethefollowingprecautionstoreducetheriskofelectricshock,reor
explosionresultinginseriousinjuryordeath.
Highlydangerouselectricalvoltagesareusedinthissystem.Carefullyrefertothewiringdiagramand
theseinstructionswhenwiring.Improperconnectionsandinadequategroundingcancauseserious
injuryordeath.
Performallelectricalworkinstrictaccordancewiththismanualandalltherelevantregulatory
standards.
Beforeservicing,openandtagalldisconnectswitches.Neverassumeelectricalpoweris
disconnected.Checkwithmeterandequipment.
Onlyuseelectricalprotectionequipmentandtoolssuitedforthisinstallation.
Insulateawiredcontrolleragainstmoistureandtemperatureextremes.
Usespeciedcablesbetweenunits.
Thenewairconditionermaynotfunctionnormallyinthefollowinginstances:
Ifelectricalpowerforthenewairconditionerissuppliedfromthesametransformerasthe
externalequipment*referredtobelow.
Ifthepowersupplycablesforthisexternalequipment*andthenewairconditionerunitare
locatedincloseproximitytoeachother.
externalequipment*:(Example):Alift,containercrane,rectierforelectricrailway,inverter
powerdevice,arcfurnace,electricfurnace,large-sizedinductionmotorandlarge-sized
switch.
Regardingthecasesmentionedabove,surgevoltagemaybeinductedintothepowersupply
cablesforthepackagedairconditionerduetoarapidchangeinpowerconsumptionofthedevice
andanactivationofaswitch.
Checkeldregulationsandstandardsbeforeperformingelectricalworkinordertoprotectthe
powersupplyforthenewairconditionerunit.
CommunicationcablingshallbeaminimumofAWG18(0.82mm
2
),2-Conductor,StrandedCopper.
ShieldedcablemustbeconsideredforapplicationsandroutinginareasofhighEMIandother
sourcesofpotentiallyexcessiveelectricalnoisetoreducethepotentialforcommunicationerrors.
Whenshieldedcablingisapplied,properbondingandterminationofthecableshieldisrequired
asperJohnsonControlsguidelines.Plenumandriserratingsforcommunicationcablesmustbe
consideredperapplicationandlocalcoderequirements.
Thepolarityoftheinputterminalsisimportant,sobesuretomatchthepolaritywhenusingcontacts
thathavepolarity.
Useanexclusivepowersupplyfortheairconditionerattheunit’sratedvoltage.
Highlydangerouselectricalvoltagesmaybeusedinthissystem.Carefullyrefertothewiringdiagram
andtheseinstructionswhenwiring.Improperconnectionsandinadequategroundingcancause
seriousinjuryordeath.
Beforeinstallingthecontrollerorremotedevices,ensurethattheindoorandoutdoorunitoperation
hasbeenstopped.Further,besuretowaitatleastveminutesbeforeturningoffthemainpower
switchtotheindoororoutdoorunits.Otherwise,waterleakageorelectricalbreakdownmayresult.
DonotopentheservicecoveroraccesspaneltotheindoororoutdoorunitswithoutturningOFFthe
mainpowersupply.Beforeconnectingorservicingthecontrollerorcablestoindoororoutdoorunits,
openandtagalldisconnectswitches.Neverassumeelectricalpowerisdisconnected.Checkwitha
meterandequipment.
ThisequipmentcanbeinstalledwithaGroundFaultCircuitBreaker(GFCI),whichisarecognized
measureforaddedprotectiontoaproperlygroundedunit.Installappropriatesizedbreakers/fuses
/overcurrentprotectionswitches,andwiringinaccordancewithlocal,stateandNECcodesand
requirements.Theequipmentinstallerisresponsibleforunderstandingandabidingbyapplicable
codesandrequirements.
viii
SM-18005
SM-18005
ix
- Table of Contents -
1. Installation..............................................................................................................................1-1
1.1 OutdoorUnit....................................................................................................................................1-2
1.2 Change-OverBox............................................................................................................................1-2
1.3 IndoorUnit.......................................................................................................................................1-2
1.4 ControlDevice................................................................................................................................1-3
1.4.1 WiredController:CIW01........................................................................................................1-3
1.4.2 SimplifiedWiredController:CIS01.........................................................................................1-3
1.4.3 WirelessController:CIR01.....................................................................................................1-3
1.4.4 MiniCentralController:CCM01.............................................................................................1-3
1.4.5 LargeCentralController:CCL01............................................................................................1-3
1.4.6 ComputerizedCentralControllerManagementSoftware:CCCS01......................................1-3
1.4.7 ComputerizedCentralControllerSoftware/OperationRatioforCCCS01............................1-3
1.4.8 ComputerizedCentralControllerAdapter:CCCA01..............................................................1-3
1.4.9 Infrared(IR)ReceiverKit:CWDIRK01...................................................................................1-3
1.5 OptionalParts..................................................................................................................................1-4
1.5.1 Relayand3PinConnectorKit:PSC-5RA..............................................................................1-4
1.5.2 RemoteSensor:THM-R2A....................................................................................................1-4
1.5.3 3PConnectorCable:PCC-1A................................................................................................1-4
2. Operation...............................................................................................................................2-1
2.1 IndoorUnit.......................................................................................................................................2-2
2.2 ControlDevice................................................................................................................................2-3
2.2.1 WiredController:CIW01........................................................................................................2-3
2.2.2 SimplifiedWiredController:CIS01.........................................................................................2-3
2.2.3 MiniCentralController:CCM01.............................................................................................2-3
2.2.4 LargeCentralController:CCL01............................................................................................2-3
2.2.5 ComputerizedCentralControllerManagementSoftware:CCCS01......................................2-3
2.2.6 ComputerizedCentralControllerSoftware/OperationRatioforCCCS01............................2-3
2.2.7 Infrared(IR)ReceiverKit:CWDIRK01...................................................................................2-3
x
SM-18005
- Table of Contents -
3. Troubleshooting.....................................................................................................................3-1
3.1 InitialTroubleshooting.....................................................................................................................3-2
3.1.1 CheckingElectricalWiringandPowerSupply.......................................................................3-2
3.1.2 LocationofPrintedCircuitBoards(PCBs).............................................................................3-6
3.1.3 CheckingRotarySwitchandDIPSwitchSettings.................................................................3-7
3.1.4 CheckingWiredController.....................................................................................................3-9
3.1.5 CheckingUsing7-SegmentDisplay.......................................................................................3-15
3.1.6 CheckingAlarmCodeHistory................................................................................................3-15
3.1.7 EmergencyOperation............................................................................................................3-15
3.2 TroubleshootingProcedures...........................................................................................................3-16
3.2.1 AlarmCodeTable...................................................................................................................3-17
3.2.2 TroubleshootingUsingAlarmCodes......................................................................................3-18
3.2.3 AbnormalitiesofDevices........................................................................................................3-32
3.3 ProceduresforChecking.................................................................................................................3-44
3.3.1 Self-CheckingofPCBsusingWiredController......................................................................3-44
3.3.2 Self-CheckingofWiredController..........................................................................................3-44
3.4 TestRun..........................................................................................................................................3-45
3.4.1 TestRunUsingWiredController............................................................................................3-46
3.4.2 TestRunfromOutdoorUnitSide...........................................................................................3-48
3.4.3 CheckingtheTestRun...........................................................................................................3-48
3.4.4 CheckListforRefrigerantSystem.........................................................................................3-49
3.4.5 ResetforAccumulatedOperationTimeofCompressor1-2(cUJ1-cUJ2).............................3-49
SM-18005
xi
- Table of Contents -
4. Maintenance..........................................................................................................................4-1
4.1MaintenanceofOutdoorUnit..........................................................................................................4-2
4.2 MaintenanceofIndoorUnit.............................................................................................................4-3
4.2.1 FloorExposedType...............................................................................................................4-3
4.2.1.1 RemovingAirInletGrille...................................................................................................4-3
4.2.1.2 RemovingAirFilter............................................................................................................4-4
4.2.1.3 RemovingAirOutletGrilles...............................................................................................4-4
4.2.1.4 RemovingFrontCover......................................................................................................4-5
4.2.1.5 RemovingFanMotor........................................................................................................4-6
4.2.1.6 RemovingPCB.................................................................................................................4-8
4.2.1.7 RemovingThermistorsforLiquidPipeandGasPipe.......................................................4-10
4.2.1.8 RemovingElectronicExpansionValveCoil......................................................................4-12
4.2.2 FloorConcealedType............................................................................................................4-13
4.2.2.1 RemovingAirFilter............................................................................................................4-13
4.2.2.2 RemovingFrontCover......................................................................................................4-13
4.2.2.3 RemovingFanMotor........................................................................................................4-14
4.2.2.4 RemovingPCB.................................................................................................................4-14
4.2.2.5 RemovingThermistorsforLiquidPipeandGasPipe.......................................................4-14
4.2.2.6 RemovingElectronicExpansionValveCoil......................................................................4-14
4.3 CleaningIndoorUnitHeatExchanger.............................................................................................4-15
4.3.1 RequiredToolsforCleaning...................................................................................................4-15
4.3.2 CleaningProcedure...............................................................................................................4-16
4.4 MainParts.......................................................................................................................................4-19
4.4.1 forOutdoorUnit......................................................................................................................4-19
4.4.2 forChange-OverBox.............................................................................................................4-19
4.4.3 forIndoorUnits.......................................................................................................................4-20
4.4.3.1 PrintedCircuitBoard.........................................................................................................4-20
4.4.3.2 FanMotor..........................................................................................................................4-21
4.4.3.3 Thermistor.........................................................................................................................4-22
4.4.3.4 ElectronicExpansionValve...............................................................................................4-23
xii
SM-18005
5. ExternalInput/OutputandFunctionSetting........................................................................... 5-1
5.1 DIPSwitchSettingsofOutdoorUnit...............................................................................................5-2
5.2 HighStaticPressureSetting(DSW5-No.5:ON).............................................................................5-2
5.3 ExternalInput/OutputandFunctionSettingModeforOutdoorUnit................................................5-2
5.4 ExternalInput/OutputandFunctionSettingModeforIndoorUnit..................................................5-3
5.4.1 ExternalInputandOutputSettings........................................................................................5-5
5.4.1.1 RemoteControlON/OFFFunction...................................................................................5-6
5.4.1.2 PowerSupplyON/OFF1(AutomaticOperationWhenPowerSupplyIsON)..................5-11
5.4.1.3 PowerSupplyON/OFF2(RestartingFunctionAfterPowerFailure)................................5-11
5.4.1.4 ControlbyField-SuppliedRoomThermostat
[InputSetting:Code(01)(forCooling),Code(02)(forHeating)]....................................5-12
5.4.1.5 RemoteCooling/HeatingChange[InputSetting:Code(07)]..........................................5-13
5.4.1.6 PickingUpOperationSignal.............................................................................................5-14
5.4.2 FunctionSetting.....................................................................................................................5-17
5.4.2.1 FunctionSelectionItem....................................................................................................5-17
5.4.2.2 DescriptionofFunctionSelectionItem.............................................................................5-23
5.5 FunctionsfromWiredController......................................................................................................5-35
5.5.1 PowerSavingFunction..........................................................................................................5-35
5.5.2 ScheduleFunction.................................................................................................................5-37
5.5.3 IndicationFunction.................................................................................................................5-37
5.5.4 ComfortFunction....................................................................................................................5-38
6. FieldWorkInstructions..........................................................................................................6-1
6.1 CautionforRefrigerantLeakage.....................................................................................................6-2
6.2 ModificationsofChargingRefrigerantsOtherthanThoseSpecifiedbyJohnsonControls.............6-3
6.3 MaintenanceWork..........................................................................................................................6-4
6.4 ServiceandMaintenanceRecordby7-SegmentDisplay...............................................................6-5
6.5 ServiceandMaintenanceRecordbyWiredController...................................................................6-6
6.6 ServiceandMaintenanceRecord...................................................................................................6-8
6.7 SaturationCurveforRefrigerant.....................................................................................................6-9
6.8 MollierChartforR410A...................................................................................................................6-10
7. ServicePartsList...................................................................................................................7-1
- Table of Contents -
SM-18005
1-1
INSTALLATION
1. Installation
1-2
SM-18005
INSTALLATION
1.1 Outdoor Unit
Refer to the Installation Manual for Outdoor Unit.
1.2 Change-Over Box
Refer to the Installation Manual for Change-Over Box.
1.3 Indoor Unit
Refer to the Installation Manual for Floor Exposed Type and Floor Concealed Type.
SM-18005
1-3
INSTALLATION
For more information of the above Control Devices, please refer to the Installation Manuals for each product.
1.4 Control Device
1.4.1 Wired Controller: CIW01
1.4.2 SimpliedWiredController:CIS01
1.4.3 Wireless Controller: CIR01
1.4.4 Mini Central Controller: CCM01
1.4.5 Large Central Controller: CCL01
1.4.6 Computerized Central Controller Management Software: CCCS01
1.4.7 Computerized Central Controller Software / Operation Ratio for CCCS01
1.4.8 Computerized Central Controller Adapter: CCCA01
1.4.9 Infrared (IR) Receiver Kit: CWDIRK01
1-4
SM-18005
INSTALLATION
For more information of the above Optional Parts, please refer to the Installation Manuals for each product.
1.5 Optional Parts
1.5.1 Relay and 3 Pin Connector Kit: PSC-5RA
1.5.2 Remote Sensor: THM-R2A
1.5.3 3P Connector Cable: PCC-1A
SM-18005
2-1
OPERATION
2. Operation
2-2
SM-18005
OPERATION
2.1 Indoor Unit
Refer to the Operation Manual for Floor Exposed Type and Floor Concealed Type.
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York VRF Floor Exposed Indoor Unit User manual

Category
Split-system air conditioners
Type
User manual

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