Bosch BMS500-AAM018-1CSXRC 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-AAM018-1CSXRC Specifications

General

Brand	Bosch
Model	BMS500-AAM018-1CSXRC
Category	Air Conditioner
Language	English

Summary

Key to Symbols and Safety Instructions

Safety Precautions

Provides essential safety guidelines and warnings for installation and operation.

Installation Details

Torque Requirements

Specifies torque values for tightening fittings to ensure proper installation.

Connecting the Cables

Pipe Length and Elevation

First Time Installation

Procedures for initial setup, including air purging and vacuum pump usage.

Adding Refrigerant to an Existing System

Instructions for charging refrigerant into a system that is already in use.

Collecting Refrigerant Into the Outdoor Unit

Evacuation of the Complete Refrigeration Circuit

Steps for evacuating the entire refrigeration system including indoor and outdoor units.

Operation Characteristics

Electronic Functions

Main Protection

Details various protection mechanisms for compressor, fan, and voltage.

Control and Functions

Explains system controls like capacity calculation, defrost, fan, EXV, and 4-way valve.

Troubleshooting

Multi Zone Outdoor Unit Error Codes

Lists display codes and their corresponding status for outdoor unit errors.

Quick Check by Error Codes

A table correlating error codes with potential causes like PCB, sensors, or components.

ODU PCB & IPM

Details PCB layouts and component connections for various outdoor unit models.

Outdoor Unit Display

Explains the outdoor unit's digital display and its point check function.

Diagnosis and Solution

Provides troubleshooting steps for specific error codes like EEPROM and communication errors.

Disassembly Guide

Outdoor Unit - BMS500-AAM018-1CSXRC

Outdoor Unit - BMS500-AAM027 Models

Outdoor Unit - BMS500-AAM036/AAM048 Models