York VRF 2 -Way Cassette Indoor Unit User manual

SM-16002

SERVICE MANUAL

INVERTER-DRIVEN MULTI-SPLIT SYSTEM

HEAT PUMP AIR CONDITIONERS

Service Manual

< Indoor Units >

 ●2-WayCassetteType

  (H,Y,C)IC2018B21S

  (H,Y,C)IC2024B21S

SM-16002-rev.1

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willbe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-16002-rev.1

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-16002-rev.1

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-16002-rev.1

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source,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-16002-rev.1

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willbe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-16002-rev.1

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will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-16002-rev.1

 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source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-16002-rev.1

 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:C2IRK01.......................................................................................1-3

1.4.10 MotionSensorKit:SOR-NED................................................................................................1-3

1.5 OptionalParts..................................................................................................................................1-4

1.5.1 AntibacterialLongLifeFilter:F-90MD-K1..............................................................................1-4

1.5.2 FilterBox:B-90HD.................................................................................................................1-4

1.5.3 DuctAdapter:PD-150D..........................................................................................................1-4

1.5.4 Relayand3PinConnectorKit:PSC-5RA..............................................................................1-4

1.5.5 RemoteSensor:THM-R2A....................................................................................................1-4

1.5.6 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:C2IRK01.......................................................................................2-3

x

SM-16002-rev.1

- Table of Contents -

3. Troubleshooting.....................................................................................................................3-1

3.1 InitialTroubleshooting.....................................................................................................................3-2

3.1.1 CheckingElectricalWiringandPowerSource.......................................................................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........................................................................................................3-33

3.3 ProceduresforChecking.................................................................................................................3-43

3.4 TestRun..........................................................................................................................................3-43

3.4.1 TestRunUsingWiredController............................................................................................3-44

3.4.2 CheckingtheTestRun...........................................................................................................3-46

SM-16002-rev.1

 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 RemovingAirFilterandAirInletFlatGrille............................................................................4-3

4.2.2 RemovingElectricalBoxCover..............................................................................................4-4

4.2.3 RemovingOptionalDecorativePanel....................................................................................4-5

4.2.4 RemovingTurboFanandFanMotor.....................................................................................4-6

4.2.5 RemovingPrintedCircuitBoard.............................................................................................4-7

4.2.6 RemovingDrainPan..............................................................................................................4-8

4.2.7 RemovingAntibacterialAgentCase.......................................................................................4-9

4.2.8 RemovingDrain-upMechanism.............................................................................................4-10

4.2.9 RemovingFloatSwitch..........................................................................................................4-11

4.2.10 RemovingLiquidPipeThermistorandGasPipeThermistor................................................4-12

4.2.11 RemovingElectronicExpansionValveCoil...........................................................................4-13

4.2.12 RemovingAutoLouverMotorsandLouver............................................................................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.......................................................................................................................................4-17

4.4.1 forOutdoorUnit......................................................................................................................4-17

4.4.2 forChange-OverBox.............................................................................................................4-17

4.4.3 forIndoorUnits.......................................................................................................................4-18

4.4.3.1 PrintedCircuitBoard.........................................................................................................4-18

4.4.3.2 FanMotor..........................................................................................................................4-18

4.4.3.3 Thermistor.........................................................................................................................4-19

4.4.3.4 ElectronicExpansionValve...............................................................................................4-20

xii

SM-16002-rev.1

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......................................................................................................5-36

5.5.1 PowerSavingFunction..........................................................................................................5-36

5.5.2 ScheduleFunction.................................................................................................................5-38

5.5.3 IndicationFunction.................................................................................................................5-38

5.5.4 ComfortFunction....................................................................................................................5-39

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-16002-rev.1

1-1

INSTALLATION

1. Installation

1-2

SM-16002-rev.1

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 2-Way Cassette and Decorative Panel.

SM-16002-rev.1

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: C2IRK01

1.4.10 Motion Sensor Kit: SOR-NED

1-4

SM-16002-rev.1

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 Antibacterial Long Life Filter: F-90MD-K1

1.5.2 Filter Box: B-90HD

1.5.3 Duct Adapter: PD-150D

1.5.4 Relay and 3 Pin Connector Kit: PSC-5RA

1.5.5 Remote Sensor: THM-R2A

1.5.6 3P Connector Cable: PCC-1A

SM-16002-rev.1

2-1

OPERATION

2. Operation

2-2

SM-16002-rev.1

OPERATION

2.1 Indoor Unit

Refer to the Operation Manual for 2-Way Cassette.

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York VRF 2 -Way Cassette Indoor Unit User manual

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