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Bosch BMS500-AAM036-1CSXRC User Manual

Bosch BMS500-AAM036-1CSXRC
104 pages
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Service Manual
Ductless Air Conditioner / Heat Pump
Multi Zone Outdoor Units
Climate 5000 Series
BTC 769102304 A / 01.2023
WARNING:
f Installation 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.
f In 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.
f Only contact a licensed contractor for repair
or maintenance of this unit.

Table of Contents

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Bosch BMS500-AAM036-1CSXRC Specifications

General IconGeneral
BrandBosch
ModelBMS500-AAM036-1CSXRC
CategoryAir Conditioner
LanguageEnglish

Summary

Bosch Climate 5000 Series Outdoor Units Service Manual

Important Safety Warnings

Crucial safety instructions for installation and operation, including electrical and fire hazards.

Key to Symbols and Safety Instructions

Safety Precautions

Details critical safety warnings for installation and operation, including electrical hazards.

Refrigerant Cycle Diagrams

Wiring Diagrams

18K Multi Zone Regular System Wiring

Details the electrical connections for the 18K regular outdoor unit model.

18K Multi Zone Max Performance System Wiring

Details the electrical connections for the 18K Max Performance outdoor unit model.

27K Multi Zone System Wiring

Details electrical connections for 27K regular and max performance outdoor units.

36K Multi Zone Regular System Wiring

Details the electrical connections for the 36K regular outdoor unit model.

36K Multi Zone Max Performance System Wiring

Details the electrical connections for the 36K Max Performance outdoor unit model.

Installation Procedures

Electronic Functions and Protections

Key Protection Features

Covers compressor restart delay, temperature, fan speed, inverter, and voltage protection mechanisms.

Troubleshooting Procedures

Outdoor Unit Error Code Reference

Lists and describes various error codes displayed by the outdoor unit.

Indoor/Outdoor Communication Error (EL 01) Troubleshooting

Troubleshooting steps for communication failures between indoor and outdoor units.

Temperature Sensor Error Troubleshooting (EC 52-EC 56, EC 50)

Diagnoses and resolves errors related to faulty temperature sensors.

Voltage Protection Error Troubleshooting (PC 10-PC 12)

Troubleshooting steps for over-voltage and under-voltage protection errors.

Outdoor Fan Speed Error Troubleshooting (EC 07, EC 71)

Diagnoses and resolves issues with outdoor fan speed and overcurrent.

High Pressure Protection Error (PC 30) Troubleshooting

Troubleshooting steps for high-pressure protection errors.

Low Pressure Protection Error (PC 31) Troubleshooting

Troubleshooting steps for low-pressure protection errors.

Current Overload and Speed Errors (PC 08, PC 44, PC 46, PC 49) Troubleshooting

Troubleshoots current overload and compressor speed-related errors.

Compressor Discharge Temperature Protection Error (PC 06) Troubleshooting

Troubleshooting steps for compressor discharge temperature protection.

High Condenser Temperature Protection Error (PC 0A) Troubleshooting

Troubleshooting steps for high condenser temperature protection.

Inverter Module (IPM) Malfunction Error (P6) Troubleshooting

Troubleshooting for IPM module malfunctions.

Compressor Top Temperature Protection Error (PC 02) Troubleshooting

Troubleshooting for high compressor top temperature protection.

Outdoor DC Fan Motor Phase Failure Error (EC 72) Troubleshooting

Troubleshooting for lack of phase failure in the outdoor DC fan motor.

Compressor Phase Failure Protection Error (PC 43) Troubleshooting

Troubleshooting for compressor lack phase protection.

Disassembly and Component Removal

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