Bosch Climate 5000 Series User manual

Bosch DuctlessAirConditioner/HeatPump
Climate5000Series
MultiZoneOutdoorUnits
ServiceManual

2|BoschClimate5000SeriesDuctlessAirConditioner/HeatPumpMultiZoneOutdoorUnits ServiceManual
08.2020|BoschThermotechnologyCorp.Datasubjecttochange

ServiceManual BoschClimate5000SeriesDuctlessAirConditioner/HeatPumpMultiZoneOutdoorUnits |3
BoschThermotechnologyCorp.|08.2020 Datasubjecttochange
TableofContents
1 KeytoSymbolsandSafetyInstructions 4
1.1 KeytoSymbols 4
1.2 Safety 4
2 PartNamesandModelNumbers 6
2.1 OutdoorModels 6
2.2 IndoorModels 6
3 Dimensions 7
3.1 OutdoorUnit 7
4 RefrigerantCycleDiagrams-OutdoorModels 8
4.1 ForModel:18KMultiZoneRegularSystem
BMS500-AAM018-1CSXRA 8
4.2 ForModel:18KMultiZoneHyperHeatSystem
BMS500-AAM018-1CSXHB 8
4.3 ForModels:27KMultiZoneRegular,27KMultiZoneHyperHeat
SystemBMS500-AAM027-1CSXRA,
BMS500-AAM027-1CSXHB 9
4.4 ForModels:36KMultiZoneRegular,36KMultiZoneHyperHeat
SystemBMS500-AAM036-1CSXRA,
BMS500-AAM036-1CSXHB 9
4.5 ForModel:48KMultiZoneRegularSystem
BMS500-AAM048-1CSXRA 10
5 WiringDiagram 10
6 InstallationDetails 11
6.1 TorqueRequirements 11
6.2 ConnectingtheCables 11
6.3 PipeLengthandtheElevation 11
6.4 FirstTimeInstallation 11
6.5 AddingtheRefrigeranttoanExistingSystem 12
6.7 OperationCharacteristics 14
7 ElectronicFunctions 15
7.1 Abbreviation 15
7.2 MainProtection 15
7.4 OperationModesandFunctions 16
8 Troubleshooting 22
8.1 MultiZoneOutdoorUnitErrorCodes 23
8.2 QuickCheckbyErrorCodes 24
8.3 ODUPCB&IPM 25
8.4 OutdoorUnitDisplay 31
8.5 OutdoorWiringDiagram 33
8.6 DiagnosisandSolution 40
9 DisassemblyGuide 71
9.1 OutdoorUnit-BMS500-AAM018-1CSXRA 71
9.2 OutdoorUnit-BMS500-AAM027-1CSXRA,
BMS500-AAM018-1CSXHB,BMS500-AAM027-1CSXHB 76
9.3 OutdoorUnit-BMS500-AAM036-1CSXRA 83
9.4 OutdoorUnit-BMS500-AAM048-1CSXRA,
BMS500-AAM036-1CSXHB 88

4|BoschClimate5000SeriesDuctlessAirConditioner/HeatPumpMultiZoneOutdoorUnits ServiceManual
08.2020|BoschThermotechnologyCorp.Datasubjecttochange
1 Key toSymbolsandSafetyInstructions
1.1 KeytoSymbols
Warnings
WarningsinthisdocumentareidentiÀedbya
warningtriangleprintedagainstagreybackground.
Keywordsatthestartofawarningindicatethetypeandseriousness
oftheensuingriskifmeasurestopreventtheriskarenottaken.
ThefollowingkeywordsaredeÀnedandcanbeusedinthisdocument:
fDANGER indicatesahazardoussituationwhich,ifnotavoided,willresult
indeathorseriousinjury.
fWARNINGindicatesahazardoussituationwhich,ifnotavoided,could
resultindeathorseriousinjury.
fCAUTION indicatesahazardoussituationwhich,ifnotavoided,could
resultinminortomoderateinjury.
fNOTICEisusedtoaddresspracticesnotrelatedtopersonalinjury.
Importantinformation
Thissymbolindicatesimportantinformationwherethereisnoriskto
peopleorproperty.
1.2 Safety
Pleasereadsafetyprecautionsbeforeinstallation
Incorrectinstallationduetoignoringinstructionscancauseseriousdamageor
injury.
WARNING:ELECTRICALHAZARD
fDonotmodifythelengthofthepowersupplycordorusean
extensioncordtopowertheunit.
fDonotsharetheelectricaloutletwithotherappliances.
Improperorinsufficientpowersupplycancausefireor
electricalshock.
WARNING:INSTALLATIONREQUIREMENTS
fInstallationmustbeperformedbyalicensedcontractor,
andpertheinstructionsintheinstallationmanual.Improper
installationcancausewaterleakage,electricalshock,orfire.
fInNorthAmerica,installationmustbeperformedin
accordancewiththerequirementofNEC(NationalElectric
Code)andCEC(CanadianElectricCode)bylicensedand
qualifiedpersonnelonly.
fOnlycontactalicensedcontractorforrepairormaintenance
ofthisunit.
fOnlyusetheincludedaccessories,parts,andspecified
partsforinstallation.Usingnon-standardpartscancause
waterleakage,electricalshock,fire,andcancausetheunit
tofail.
fInstalltheunitinasolidlocationthatcansupporttheunit’s
weight.Ifthechosenlocationcannotsupporttheunit’s
weight,ortheinstallationisnotdoneproperly,theunitmay
dropandcauseseriousinjuryand/ordamage.
WARNING:
fThisproductcanexposeyoutochemicalsincludingLead
andLeadcomponents,whichareknowntotheState
ofCaliforniatocausecancerandbirthdefectsorother
reproductiveharm.Formoreinformationgotowww.
P65Warnings.ca.gov.

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WARNING:ELECTRICALHAZARD
fForallelectricalwork,followalllocalandnationalwiring
standards,regulations,andtheInstallationManual.
Thepowersupplytotheoutdoorunitrequiresaservice
disconnectattheunit. Onlyuseadedicatedcircuit. Never
shareapowersourceconnectedtothissystem.Insufficient
electricalcapacityordefectsinelectricalworkcancause
electricalshockorfire.
fForallelectricalwork,usethespecifiedcables.Connect
cablestightly,andclampthemsecurelytopreventexternal
forcesfromdamagingtheterminal.Improperelectrical
connectionscanoverheatandcausefire,andmayalso
causeshock.
fAllwiringmustbeproperlyarrangedtoensurethatthe
controlboardcovercancloseproperly.Ifthecontrolboard
coverisnotclosedproperly,itcanleadtocorrosionand
causetheconnectionpointsontheterminaltoheatup,
catchfire,orcauseelectricalshock.
fIncertainfunctionalenvironments,suchaskitchens,server
rooms,etc.,theuseofspeciallydesignedair-conditioning
unitsarehighlyrecommended.
fIfthepowersupplycordisdamaged,itmustbereplaced
bythemanufacturer,itsserviceagentorsimilarlyqualified
personssuchasalicensedelectricianinordertoavoida
hazard.
fTheproductmustbeproperlygroundedatthetimeof
installation,orelectricalshockmayoccur.
WARNING:FIRE HAZARD
fForunitsthathaveanauxiliaryelectricheater,donot
installtheunitwithin1meter(3feet)ofanycombustible
materials.
fDonotinstalltheunitinalocationthatmaybeexposed
tocombustiblegasleaks.Ifcombustiblegasaccumulates
aroundtheunit,itmaycausefire.
fDonotoperateyourairconditionerinawetroomsuchasa
bathroomorlaundryroom.Toomuchexposuretowatercan
causeelectricalcomponentstoshortcircuit.
NOTICE:PROPERTYDAMAGE
fInstallcondensatedrainagepipingaccordingtothe
instructionsinthismanual.Impropercondensatedrainage
maycausewaterdamagetoyourhomeandproperty.
CAUTION:CONTAINS REFRIGERANT
fThisair-conditioningunitcontainsfluorinatedgases.For
specificinformationonthetypeofgasandtheamount,
pleaserefertotherelevantlabelontheoutdoorunititself.
fInstallation,service,maintenanceandrepairofthisunit
mustbeperformedbyacertifiedtechnician.
fProductremovalandrecyclingmustbeperformedbya
certifiedtechnician.
fIfthesystemhasaleak-detectionsysteminstalled,itmust
becheckedforleaksatleastevery12months.
fWhentheunitischeckedforleaks,properrecord-keepingof
allchecksisrequired.

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08.2020|BoschThermotechnologyCorp.Datasubjecttochange
2 PartNamesandModelNumbers
2.1 OutdoorModels
Voltage Capacity MaxZone RegularOutdoorUnits HyperHeatOutdoorUnits
208-230V
18K 2 BMS500-AAM018-1CSXRA BMS500-AAM018-1CSXHB
27K 3 BMS500-AAM027-1CSXRA BMS500-AAM027-1CSXHB
36K 4 BMS500-AAM036-1CSXRA BMS500-AAM036-1CSXHB
48K 5 BMS500-AAM048-1CSXRA ȉ
Table 1
2.2 IndoorModels
Voltage Capacity WallMountedIndoorUnits 4-WayCassetteIndoorUnits DuctedIndoorUnits
208-230V
9K BMS500-AAU009-1AHWXB BMS500-AAU009-1AHCXB BMS500-AAU009-1AHDXB
12K BMS500-AAU012-1AHWXB BMS500-AAU012-1AHCXB BMS500-AAU012-1AHDXB
18K BMS500-AAU018-1AHWXB BMS500-AAU018-1AHCXB BMS500-AAU018-1AHDXB
24K BMS500-AAU024-1AHWXB BMS500-AAU024-1AHCXB BMS500-AAU024-1AHDXB
Table 2
ForIndoorUnits,pleaserefertoIndoorUnitServiceManual.

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3 Dimensions
3.1 OutdoorUnit
Splittypeoutdoorunitmountingdimensions
Figure 1
Split Type Outdoor Unit
H
W
W
H
A
B
D
OutdoorModel OutdoorUnitDimensionsmm(in.)
WxHxD
MountingDimensions
mm(in.)
DistanceA DistanceB
BMS500-AAM018-1CSXRA 845x702x363(33.27x27.6x14.3) 540(21.26) 350(13.8)
BMS500-AAM027-1CSXRA,
BMS500-AAM027-1CSXHB,
BMS500-AAM036-1CSXRA,
BMS500-AAM036-1CSXHB
946x810x410(37.24x31.9x16.14) 673(26.5) 403(15.87)
BMS500-AAM036-1CSXHB,
BMS500-AAM048-1CSXRA 952x1333x415(37.5x52.5x16.34) 634(24.96) 404(15.9)
Table 3

8|BoschClimate5000SeriesDuctlessAirConditioner/HeatPumpMultiZoneOutdoorUnits ServiceManual
08.2020|BoschThermotechnologyCorp.Datasubjecttochange
4 RefrigerantCycleDiagrams-OutdoorModels
4.1 ForModel:18KMultiZoneRegularSystem
BMS500-AAM018-1CSXRA
Figure 2
LIQUID VALVE A
GAS VALVE A
HEAT
EXCHANGE
(EVAPORATOR)
HEAT
EXCHANGE
(CONDENSER)
Compressor
4-WAY VALVE
COOLING
HEATING
T2 Evaporator
temp. sensor
middle
T1 Room
temp. sensor
T3
Condenser
temp. sensor
T5 Discharge
temp. sensor
T4 Ambient
temp. sensor
INDOOR OUTDOOR
EXV A CAPILLARY A
CHECK VALVE
CAPILLARY TUBE
EXV B CAPILLARY B
LIQUID VALVE B
GAS VALVE B
Accumulator
T2B-A Evaporator
temp. sensor outlet
T2B-B
4.2 ForModel:18KMultiZoneHyperHeatSystem
BMS500-AAM018-1CSXHB
Figure 3
LIQUID VALVE A
GAS VALVE A
HEAT
EXCHANGE
(EVAPORATOR)
HEAT
EXCHANGE
(CONDENSER)
Compressor
4-WAY VALVE
COOLING
HEATING
T2 Evaporator
temp. sensor
middle
T1 Room
temp. sensor
T3
Condenser
temp. sensor
T5 Discharge
temp. sensor
T4 Ambient
temp. sensor
INDOOR OUTDOOR
EXV A CAPILLARY A
CHECK VALVE
CAPILLARY TUBE
EXV B CAPILLARY B
LIQUID VALVE B
GAS VALVE B
Accumulator
T2B-A Evaporator
temp. sensor outlet
T2B-B

ServiceManual BoschClimate5000SeriesDuctlessAirConditioner/HeatPumpMultiZoneOutdoorUnits |9
BoschThermotechnologyCorp.|08.2020 Datasubjecttochange
4.3 ForModels: 27K Multi ZoneRegular,27KMultiZoneHyperHeat
SystemBMS500-AAM027-1CSXRA,BMS500-AAM027-1CSXHB
Figure 4
LIQUID VALVE A
GAS VALVE A
HEAT
EXCHANGE
(EVAPORATOR)
HEAT
EXCHANGE
(CONDENSER)
Compressor
4-WAY VALVE
COOLING
HEATING
T2 Evaporator
temp. sensor
middle
T1 Room
temp. sensor
T3
Condenser
temp. sensor
T5 Discharge
temp. sensor
T4 Ambient
temp. sensor
INDOOR OUTDOOR
EXV A CAPILLARY A
CHECK VALVE
CAPILLARY TUBE
EXV B CAPILLARY B
LIQUID VALVE B
GAS VALVE B
EXV C CAPILLARY C
LIQUID VALVE C
GAS VALVE C
Accumulator
T2B-A Evaporator
temp. sensor outlet
T2B-B
T2B-C
4.4 ForModels:36KMultiZoneRegular,36KMultiZoneHyperHeat
SystemBMS500-AAM036-1CSXRA, BMS500-AAM036-1CSXHB
Figure 5
LIQUID VALVE A
GAS VALVE A
HEAT
EXCHANGE
(EVAPORATOR)
HEAT
EXCHANGE
(CONDENSER)
Compressor
4-WAY VALVE
COOLING
HEATING
T2 Evaporator
temp. sensor
middle
T1 Room
temp. sensor
T3
Condenser
temp. sensor
T5 Discharge
temp. sensor
T4 Ambient
temp. sensor
INDOOR OUTDOOR
EXV A CAPILLARY A
CHECK VALVE
CAPILLARY TUBE
EXV B CAPILLARY B
LIQUID VALVE B
GAS VALVE B
EXV C CAPILLARY C
LIQUID VALVE C
GAS VALVE C
EXV D CAPILLARY D
LIQUID VALVE D
GAS VALVE D Accumulator
High pressure
switch
Low pressure
switch
T2B-A Evaporator
temp. sensor outlet
T2B-B
T2B-C
T2B-D

10|BoschClimate5000SeriesDuctlessAirConditioner/HeatPumpMultiZoneOutdoorUnits ServiceManual
08.2020|BoschThermotechnologyCorp.Datasubjecttochange
4.5 ForModel:48KMultiZoneRegularSystem
BMS500-AAM048-1CSXRA
Figure 6
LIQUID VALVE A
GAS VALVE A
HEAT
EXCHANGE
(EVAPORATOR) HEAT
EXCHANGE
(CONDENSER)
COOLING
HEATING
T2 Evaporator
temp. sensor
T1 Room
temp. sensor
T3
Condenser
temp. sensor
T4 Ambient
temp. sensor
INDOOR OUTDOOR
EXV A CAPILLARY A
CHECK VALVE
CAPILLARY TUBE
EXV B CAPILLARY B
LIQUID VALVE B
GAS VALVE B
EXV C CAPILLARY C
LIQUID VALVE C
GAS VALVE C
EXV D CAPILLARY D
LIQUID VALVE D
GAS VALVE D
EXV E CAPILLARY E
LIQUID VALVE E
GAS VALVE E
Compressor
4-WAY VALVE
T5 Discharge
temp. sensor
Accumulator High pressure
switch
Low pressure
switch
T2B-A Evaporator
temp. sensor outlet
T2B-B
T2B-C
T2B-D
T2B-E
5 WiringDiagram
Refertowiringdiagramintheinstallationmanual(IOM)orontheunit.