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Bosch BMS500-AAS012-1CSXRA User Manual

Bosch BMS500-AAS012-1CSXRA
96 pages
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Bosch Ductless Air Conditioner / Heat Pump Outdoor Unit
Climate 5000 Series
Single Zone (Regular, HyperHeat, Light Commercial) ODU
Service Manual

Table of Contents

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Bosch BMS500-AAS012-1CSXRA Specifications

General IconGeneral
BrandBosch
ModelBMS500-AAS012-1CSXRA
CategoryAir Conditioner
LanguageEnglish

Summary

Key to Symbols and Safety Instructions

Safety

Provides essential safety precautions and warnings for installation and use, covering electrical hazards and requirements.

Installation Details

Adding the Refrigerant to an Existing System

Explains the procedure for charging the system with refrigerant, including recovery and adding.

Electronic Functions

Main Protection

Details various protection functions like compressor restart delay, temperature limits, and inverter module protection.

Operation Modes and Functions

Explains various operational modes (Cooling, Heating, Fan, Auto, Drying, Sleep) and their functions.

Error Codes

Error Codes - Wall Mounted Indoor Unit

Lists error codes for wall-mounted indoor units, their causes, and indicator flashes.

Error Codes - 4-Way Cassette Indoor Unit

Lists error codes specific to 4-way cassette indoor units and their causes.

Error Codes - Ducted Indoor Unit

Lists error codes for ducted indoor units and their corresponding causes and indicators.

Quick Check by Error Codes

Provides a table correlating error codes with potential causes like PCB, sensors, and wiring.

Wiring Diagrams

ODU PCB & IPM

Shows wiring diagrams for the Outdoor Unit's Printed Circuit Board (PCB) and Intelligent Power Module (IPM).

Indoor Wiring Diagram

Wiring diagrams for indoor units (Wall Mounted, Cassette, Ducted), showing connections and switch functions.

Outdoor Wiring Diagram

Wiring diagrams for various outdoor unit models, illustrating connections to the main board and components.

Diagnosis & Solution

EEPROM parameter error (EO/F4)

Troubleshooting steps for EEPROM parameter errors affecting indoor or outdoor PCBs.

Indoor/outdoor unit's communication (E1)

Troubleshooting guide for communication errors between indoor and outdoor units.

Zero crossing detection error (E2)

Troubleshooting for errors related to the zero crossing detection signal on the PCB.

Fan speed has been out of control (E3/F5)

Steps to diagnose and resolve issues with uncontrolled indoor or outdoor fan speeds.

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