Bosch BMS500-AAM048-1CSXHC 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-AAM048-1CSXHC Specifications

General

Brand	Bosch
Model	BMS500-AAM048-1CSXHC
Category	Air Conditioner
Language	English

Summary

Key to Symbols and Safety Instructions

Safety Precautions

Provides essential safety guidelines and warnings for installation and operation.

Wiring Diagrams

18K Multi Zone Regular System

18K Multi Zone Max Performance System

27K Multi Zone Regular Heat & Max Performance System

36K Multi Zone Regular System

36K Multi Zone Max Performance System

48K Multi Zone Regular System

48K Multi Zone Max Performance System

Installation Details

Torque Requirements

Specifies tightening torque values for pipe connections.

Connecting the Cables

Guidance on selecting and connecting power supply cables.

Pipe Length and Elevation

Details maximum piping lengths and height differences for system installation.

First Time Installation

Procedure for initial air purging using a vacuum pump.

Adding Refrigerant to Existing System

Instructions for charging refrigerant into an existing system.

Collecting Refrigerant Into Outdoor Unit

Steps for collecting refrigerant into the outdoor unit.

Evacuation of Refrigeration Circuit

Procedure for evacuating the complete refrigeration circuit.

Operation Characteristics

Electronic Functions

Main Protection

Covers compressor restart delay, temperature, fan, inverter, and voltage protections.

Control and Functions

Troubleshooting

Outdoor Unit Error Codes

Lists error codes and their LED status for outdoor unit malfunctions.

Quick Check by Error Codes

Provides a cross-reference table for error codes and potential causes.

ODU PCB & IPM

Diagnosis and Solution

Guides troubleshooting for EEPROM, communication, sensor, protection, and parts issues.

Disassembly Guide

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