Bosch BMS500-AAU012-1AHDXB User Manual

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.

Bosch BMS500-AAU012-1AHDXB Specifications

General

Brand	Bosch
Model	BMS500-AAU012-1AHDXB
Category	Air Conditioner
Language	English

Summary

Symbols and Safety Instructions

Safety Precautions

Outlines critical safety rules for installation and operation.

Installation Procedures

Torque Requirements

Cable Connections

Pipe Length and Elevation Limits

Initial Installation and Refrigerant Handling

Guides on vacuuming, purging, and charging refrigerant.

Electronic Functions and Controls

Main Protection Mechanisms

Details internal protections for compressor, fan, and inverter modules.

Operational Controls

Troubleshooting and Error Codes

Safety Warnings

Emphasizes electrical hazards and precautions before troubleshooting.

Outdoor Unit Error Codes

Lists error codes displayed by the outdoor unit and their meanings.

Quick Error Code Checks

Provides a matrix linking error codes to potential causes.

Diagnosis and Solutions

Offers step-by-step solutions for specific error codes.

PCB and IPM Information

Component Checks

Temperature Sensor Checks

Guides on testing temperature sensors using a multimeter.

Compressor Checks

Details how to measure compressor winding resistance.

Electrical Component Checks

Disassembly and Component Removal

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