Bosch Climate 5000 Series Bedienungsanleitung

Service Manual

Ductless Air Conditioner / Heat Pump

Multi Zone Outdoor Units

Climate 5000 Series

BTC 769102304 A / 01.2023

WARNING:

fInstallation must be performed by a licensed

contractor, and per the instructions in the

installation manual. Improper installation can

cause water leakage, electrical shock, or fire.

fIn North America, installation must

be performed in accordance with the

requirement of NEC (National Electric Code)

and CEC (Canadian Electric Code) by licensed

and qualified personnel only.

fOnly contact a licensed contractor for repair

or maintenance of this unit.

Service Manual

Bosch Climate 5000 Series Ductless Air Conditioner / Heat Pump Multi Zone Outdoor Units (01.2023)

| 3

Service Manual

Bosch Climate 5000 Series Ductless Air Conditioner / Heat Pump Multi Zone Outdoor Units (01.2023)

Table of Contents

1 Key to Symbols and Safety Instructions 4

1.1 Key to Symbols 4

1.2 Safety 4

2 Part Names and Model Numbers 6

2.1 Outdoor Models 6

2.2 Indoor Models 6

2.3 Multizone Conﬁgurations 6

3 Dimensions 9

3.1 Outdoor Unit 9

4 Refrigerant Cycle Diagrams - Outdoor Models 10

4.1 For Model: 18K Multi Zone Regular System

BMS500-AAM018-1CSXRC 10

4.2 For Model: 18K Multi ZoneMax Performance System

BMS500-AAM018-1CSXHC 10

4.3 For Models: 27K Multi Zone Regular, 27K Multi Zone

Max Performance System BMS500-AAM027-1CSXRC,

BMS500-AAM027-1CSXHC 11

4.4 For Models: 36K Multi Zone Regular System

BMS500-AAM036-1CSXRC 11

4.5 For Model: 36K Multi Zone Max Performance System

BMS500-AAM036-1CSXHC 12

4.6 For Model: 48K Multi Zone Regular System

BMS500-AAM048-1CSXRC 12

4.7 For Model: 48K Multi Zone Max Performance System

BMS500-AAM048-1CSXHC 13

5 Wiring Diagrams 14

5.1 For Model: 18K Multi Zone Regular System

BMS500-AAM018-1CSXRC 14

5.2 For Model: 18K Multi Zone Max Performance System

BMS500-AAM018-1CSXHC 15

5.3 For Models: 27K Multi Zone Regular Heat & Max Performance

System BMS500-AAM027-1CSXRC,

BMS500-AAM027-1CSXHC 16

5.4 For Model: 36K Multi Zone Regular System

BMS500-AAM036-1CSXRC 17

5.5 For Model: 36K Multi Zone Max Performance System

BMS500-AAM036-1CSXHC 18

5.6 For Model: 48K Multi Zone Regular System

BMS500-AAM048-1CSXRC 19

5.7 For Model: 48K Multi Zone Max Performance System

BMS500-AAM048-1CSXHC 20

6 Installation Details 21

6.1 Torque Requirements 21

6.2 Connecting the Cables 21

6.3 Pipe Length and the Elevation 21

6.4 First Time Installation 22

6.5 Adding the Refrigerant to an Existing System 22

6.6 Collecting the Refrigerant Into the Outdoor Unit 24

6.7 Evacuation of the Complete Refrigeration Circuit, Indoor and

Outdoor Unit. 24

6.8 Operation Characteristics 25

7 Electronic Functions 26

7.1 Abbreviation 26

7.2 Electric Control Working Environment 26

7.3 Main Protection 26

7.4 Control and Functions 28

8 Troubleshooting 37

8.1 Multi Zone Outdoor Unit Error Codes 38

8.2 Quick Check by Error Codes 39

8.3 ODU PCB & IPM 40

8.4 Outdoor Unit Display 47

8.5 Diagnosis and Solution 52

9 Disassembly Guide 87

9.1 Outdoor Unit - BMS500-AAM018-1CSXRC 87

9.2 Outdoor Unit - BMS500-AAM027-1CSXRC,

BMS500-AAM018-1CSXHC, BMS500-AAM027-1CSXHC 91

9.3 Outdoor Unit - BMS500-AAM036-1CSXHC,

BMS500-AAM048-1CSXRC, BMS500-AAM048-1CSXHC 97

Service Manual

Bosch Climate 5000 Series Ductless Air Conditioner / Heat Pump Multi Zone Outdoor Units (01.2023)

1 Key to Symbols and Safety Instructions

1.1 Key to Symbols

Warnings

Warnings in this document are identiﬁed by a

warning triangle printed against a grey background.

Keywords at the start of a warning indicate the type and seriousness

of the ensuing risk if measures to prevent the risk are not taken.

The following keywords are deﬁned and can be used in this document:

fDANGER indicates a hazardous situation which, if not avoided, will result

in death or serious injury.

fWARNING indicates a hazardous situation which, if not avoided, could

result in death or serious injury.

fCAUTION indicates a hazardous situation which, if not avoided, could

result in minor to moderate injury.

fNOTICE is used to address practices not related to personal injury.

Important information

This symbol indicates important information where there is no risk to

people or property.

1.2 Safety

Please read safety precautions before installation

Incorrect installation due to ignoring instructions can cause serious damage or

injury.

WARNING: ELECTRICAL HAZARD

fDo not modify the length of the power supply cord or use an

extension cord to power the unit.

fDo not share the electrical outlet with other appliances.

Improper or insufficient power supply can cause fire or

electrical shock.

WARNING: INSTALLATION REQUIREMENTS

fInstallation must be performed by a licensed contractor,

and per the instructions in the installation manual. Improper

installation can cause water leakage, electrical shock, or fire.

fIn North America, installation must be performed in

accordance with the requirement of NEC (National Electric

Code) and CEC (Canadian Electric Code) by licensed and

qualified personnel only.

fOnly contact a licensed contractor for repair or maintenance

of this unit.

fOnly use the included accessories, parts, and specified

parts for installation. Using non-standard parts can cause

water leakage, electrical shock, fire, and can cause the unit

to fail.

fInstall the unit in a solid location that can support the unit’s

weight. If the chosen location cannot support the unit’s

weight, or the installation is not done properly, the unit may

drop and cause serious injury and/or damage.

WARNING:

fThis product can expose you to chemicals including Lead

and Lead components, which are known to the State

of California to cause cancer and birth defects or other

reproductive harm. For more information go to www.

P65Warnings.ca.gov.

| 5

Service Manual

Bosch Climate 5000 Series Ductless Air Conditioner / Heat Pump Multi Zone Outdoor Units (01.2023)

WARNING: ELECTRICAL HAZARD

fFor all electrical work, follow all local and national wiring

standards, regulations, and the Installation Manual.

The power supply to the outdoor unit requires a service

disconnect at the unit. Only use a dedicated circuit. Never

share a power source connected to this system. Insufficient

electrical capacity or defects in electrical work can cause

electrical shock or fire.

fFor all electrical work, use the specified cables. Connect

cables tightly, and clamp them securely to prevent external

forces from damaging the terminal. Improper electrical

connections can overheat and cause fire, and may also

cause shock.

fAll wiring must be properly arranged to ensure that the

control board cover can close properly. If the control board

cover is not closed properly, it can lead to corrosion and

cause the connection points on the terminal to heat up,

catch fire, or cause electrical shock.

fIn certain functional environments, such as kitchens, server

rooms, etc., the use of specially designed air-conditioning

units are highly recommended.

fIf the power supply cord is damaged, it must be replaced

by the manufacturer, its service agent or similarly qualified

persons such as a licensed electrician in order to avoid a

hazard.

fThe product must be properly grounded at the time of

installation, or electrical shock may occur.

WARNING: FIRE HAZARD

fFor units that have an auxiliary electric heater, do not

install the unit within 1 meter (3 feet) of any combustible

materials.

fDo not install the unit in a location that may be exposed

to combustible gas leaks. If combustible gas accumulates

around the unit, it may cause fire.

fDo not operate your air conditioner in a wet room such as a

bathroom or laundry room. Too much exposure to water can

cause electrical components to short circuit.

NOTICE: PROPERTY DAMAGE

fInstall condensate drainage piping according to the

instructions in this manual. Improper condensate drainage

may cause water damage to your home and property.

CAUTION: CONTAINS REFRIGERANT

fThis air-conditioning unit contains fluorinated gases. For

specific information on the type of gas and the amount,

please refer to the relevant label on the outdoor unit itself.

fInstallation, service, maintenance and repair of this unit

must be performed by a certified technician.

fProduct removal and recycling must be performed by a

certified technician.

fIf the system has a leak-detection system installed, it must

be checked for leaks at least every 12 months.

fWhen the unit is checked for leaks, proper record-keeping of

all checks is required.

Service Manual

Bosch Climate 5000 Series Ductless Air Conditioner / Heat Pump Multi Zone Outdoor Units (01.2023)

2 Part Names and Model Numbers

2.1 Outdoor Models

Voltage Capacity Max Zone Regular Outdoor Units Max Performance Outdoor Units

208-230V

18K 2 BMS500-AAM018-1CSXRC BMS500-AAM018-1CSXHC

27K 3 BMS500-AAM027-1CSXRC BMS500-AAM027-1CSXHC

36K 4 BMS500-AAM036-1CSXRC BMS500-AAM036-1CSXHC

48K 5 BMS500-AAM048-1CSXRC BMS500-AAM048-1CSXHC

Table 1

2.2 Indoor Models

Voltage Capacity Wall Mounted Indoor Units 4-Way Cassette Indoor Units Ducted Indoor Units

115V 12K BMS500-AAS012-0AHWXC – –

208-230V

6K BMS500-AAU006-1AHWXC – –

9K BMS500-AAU009-1AHWXC BMS500-AAU009-1AHCXB BMS500-AAU009-1AHDXB

12K BMS500-AAU012-1AHWXC BMS500-AAU012-1AHCXB BMS500-AAU012-1AHDXB

18K BMS500-AAU018-1AHWXC BMS500-AAU018-1AHCXB BMS500-AAU018-1AHDXB

24K BMS500-AAU024-1AHWXC BMS500-AAU024-1AHCXC BMS500-AAU024-1AHDXB

30K BMS500-AAU030-1AHWXC – –

36K BMS500-AAU036-1AHWXC BMS500-AAU036-1AHCXC BMS500-AAU036-1AHDXB

Table 2

For Indoor Units, please refer to Indoor Unit Service Manual.

2.3 Multizone Congurations

Capacity 2 ZONE 3 ZONE 4 ZONE 5 ZONE

18K

6+6

6+9

6+12

9+9

9+12

12+12

27K

6+12 6+6+6

6+18 6+6+9

9+9 6+6+12

9+12 6+6+18

9+18 6+9+9

12+12 6+9+12

12+18 6+9+18

18+18 6+12+12

6+12+18

9+9+9

9+9+12

9+9+18

9+12+12

12+12+12

Table 3

| 7

Service Manual

Bosch Climate 5000 Series Ductless Air Conditioner / Heat Pump Multi Zone Outdoor Units (01.2023)

Capacity 2 ZONE 3 ZONE 4 ZONE 5 ZONE

36K

6+18 6+6+12 6+6+6+6

6+24 6+6+18 6+6+6+9

9+18 6+6+24 6+6+6+12

9+24 6+9+12 6+6+6+18

12+12 6+9+18 6+6+6+24

12+18 6+9+24 6+6+9+9

12+24 6+12+12 6+6+9+12

18+18 6+12+18 6+6+9+18

18+24 6+12+24 6+6+9+24

24+24 6+18+18 6+6+12+12

6+18+24 6+6+12+18

9+9+9 6+6+12+24

9+9+12 6+9+9+9

9+9+18 6+9+9+12

9+9+24 6+9+9+18

9+12+12 6+9+9+24

9+12+18 6+9+12+12

9+12+24 6+9+12+18

9+18+18 6+12+12+12

12+12+12 6+12+12+18

12+12+18 9+9+9+9

12+12+24 9+9+9+12

12+18+18 9+9+9+18

9+9+12+12

9+9+12+18

9+12+12+12

12+12+12+12

Table 4

Service Manual

Bosch Climate 5000 Series Ductless Air Conditioner / Heat Pump Multi Zone Outdoor Units (01.2023)

Capacity 2 ZONE 3 ZONE 4 ZONE 5 ZONE

48K

9+24 6+6+24 6+6+6+18 6+6+6+6+9

9+30 6+6+30 6+6+6+24 6+6+6+6+12

9+36 6+6+36 6+6+6+30 6+6+6+6+18

12+24 6+9+24 6+6+6+36 6+6+6+6+24

12+30 6+9+30 6+6+9+18 6+6+6+6+30

12+36 6+9+36 6+6+9+24 6+6+6+6+36

18+18 6+12+18 6+6+9+30 6+6+6+9+9

18+24 6+12+24 6+6+9+36 6+6+6+9+12

18+30 6+12+30 6+6+12+12 6+6+6+9+18

18+36 6+12+36 6+6+12+18 6+6+6+9+24

24+30 6+18+18 6+6+12+24 6+6+6+9+30

24+36 6+18+24 6+6+12+30 6+6+6+9+36

30+30 6+18+30 6+6+12+36 6+6+6+12+12

6+18+36 6+6+18+18 6+6+6+12+18

6+24+24 6+6+18+24 6+6+6+12+24

6+24+30 6+6+18+30 6+6+6+12+30

9+9+18 6+6+24+24 6+6+6+18+18

9+9+24 6+9+9+12 6+6+6+18+24

9+9+30 6+9+9+18 6+6+9+9+9

9+9+36 6+9+9+24 6+6+9+9+12

9+12+12 6+9+9+30 6+6+9+9+18

9+12+18 6+9+9+36 6+6+9+9+24

9+12+24 6+9+12+12 6+6+9+9+30

9+12+30 6+9+12+18 6+6+9+12+12

9+12+36 6+9+12+24 6+6+9+12+18

9+18+18 6+9+12+30 6+6+9+12+24

9+18+24 6+9+12+36 6+6+9+12+30

9+18+30 6+9+18+18 6+6+9+18+18

9+18+36 6+9+18+24 6+6+9+18+24

9+24+24 6+9+18+30 6+6+12+12+12

9+24+30 6+12+12+12 6+6+12+12+18

12+12+12 6+12+12+18 6+6+12+12+24

12+12+18 6+12+12+24 6+6+12+18+18

12+12+24 6+12+12+30 6+9+9+9+9

12+12+30 6+12+18+18 6+9+9+9+12

12+12+36 6+12+18+24 6+9+9+9+18

12+18+18 9+9+9+9 6+9+9+9+24

12+18+24 9+9+9+12 6+9+9+9+30

12+18+30 9+9+9+18 6+9+9+12+12

12+24+24 9+9+9+24 6+9+9+12+18

18+18+18 9+9+9+30 6+9+9+12+24

18+18+24 9+9+9+36 6+9+9+18+18

9+9+12+12 6+9+12+12+12

9+9+12+18 6+9+12+12+18

9+9+12+24 6+9+12+12+24

9+9+12+30 6+12+12+12+12

9+9+18+18 6+12+12+12+18

9+9+18+24 9+9+9+9+9

9+12+12+12 9+9+9+9+12

9+12+12+18 9+9+9+9+18

9+12+12+24 9+9+9+9+24

9+12+12+30 9+9+9+12+12

9+12+18+18 9+9+9+12+18

9+12+18+24 9+9+9+12+24

12+12+12+12 9+9+12+12+12

12+12+12+18 9+9+12+12+18

12+12+12+24 9+12+12+12+12

12+12+18+18 12+12+12+12+12

Table 5

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Service Manual

Bosch Climate 5000 Series Ductless Air Conditioner / Heat Pump Multi Zone Outdoor Units (01.2023)

3 Dimensions

3.1 Outdoor Unit

Split type outdoor unit mounting dimensions

Figure 1

Split Type Outdoor Unit

Outdoor Model Outdoor Unit Dimensions mm (in.)

W x H x D

Mounting Dimensions

mm (in.)

Distance A Distance B

BMS500-AAM018-1CSXRC 890x673x342 (35.04x26.5x13.46) 663 (26.1) 354 (13.94)

BMS500-AAM018-1CSXHC,

BMS500-AAM027-1CSXRC,

BMS500-AAM027-1CSXHC,

BMS500-AAM036-1CSXRC

946x810x410 (37.24x31.89x16.14) 673 (26.5) 403 (15.87)

BMS500-AAM036-1CSXHC,

BMS500-AAM048-1CSXRC,

BMS500-AAM048-1CSXHC

952x1333x415 (37.48x52.48x16.34) 634 (24.96) 404 (15.9)

Table 6

10 |

Service Manual

Bosch Climate 5000 Series Ductless Air Conditioner / Heat Pump Multi Zone Outdoor Units (01.2023)

4 Refrigerant Cycle Diagrams - Outdoor Models

4.1 For Model: 18K Multi Zone Regular System

BMS500-AAM018-1CSXRC

Figure 2

LIQUID VALVE A

GAS VALVE A

HEAT

EXCHANGE

(EVAPORATOR)HEAT

EXCHANGE

(CONDENSER)

COOLING

HEATING

T2 Evaporator

temp. sensor

middle

T1 Room

temp. sensor

Condenser

temp. sensor

T4 Ambient

temp. sensor

INDOOR OUTDOOR

EXV A

CAPILLARY TUBE

EXV B

LIQUID VALVE B

GAS VALVE B

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

4.2 For Model: 18K Multi ZoneMax Performance System

BMS500-AAM018-1CSXHC

Figure 3

LIQUID VALVE A

GAS VALVE A

HEAT

EXCHANGE

(EVAPORATOR) HEAT

EXCHANGE

(CONDENSER)

COOLING

HEATING

T2 Evaporator

temp. sensor

middle

T1 Room

temp. sensor

Condenser

temp. sensor

T4 Ambient

temp. sensor

INDOOR OUTDOOR

EXV A

CAPILLARY TUBE

EXV B

LIQUID VALVE B

GAS VALVE B

Compressor

4-WAY VALVE

T5 Discharge

temp. sensor

AccumulatorHigh pressure

switch

Low pressure

switch

T2B-A

Evaporator

temp. sensor outlet

T2B-B

T2B-C

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