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Service Manual
Ver.
01 13 01 2022
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UNI SPLIT
SERIES
ASGE-XXBI2
ASGE-XXBI2-3
ASC-XXBI2
ASF-XXBI2
ASD-XXBI2
EN

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Table of Contents
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Summarization of Contents

Safety and Product Information
Safety Notice on Maintenance
Details precautions and prohibitions during air conditioner maintenance.
Safety Notice on Operation
Outlines prohibited actions and warnings for safe air conditioner operation.
Product Overview
Lists outdoor (ODU) and indoor (IDU) unit models with their specifications.
Electrical Parameters
Details electrical specifications including circuit breaker capacity and wire gauge requirements.
System Operation and Control
Operation Modes
Explains cooling and heating modes, and control logic for key components like compressor and fans.
Control Modes and Protection
Covers specific control modes (EXV, fan, 4-way valve) and protection mechanisms against faults.
Unit Functions
Describes various functions such as filter reminder, child-lock, memory, and temperature unit switching.
Multi-Unit System Configuration
Details product collocation, pipe selection, and installation for UNI-COMBI multi-unit systems.
Troubleshooting and Maintenance
System Diagrams and PCB Layout
Provides electrical wiring diagrams and PCB layouts for troubleshooting and component identification.
Error Codes
Lists and explains various error codes displayed by the system, aiding in fault diagnosis.
Maintenance Procedures
Details system diagram, vacuum pumping, refrigerant charging, and component replacement procedures.
Component Removal and Replacement
Provides step-by-step instructions for removing and replacing major components from ODU and IDU.
Appendices - Sensor Data
Temperature Sensor Data Lists
Provides voltage lists for 15kΩ and 20kΩ temperature sensors at various temperatures.
Refrigerant Pressure-Temperature Data
Lists pressure-temperature data for R32 refrigerant, crucial for system performance checks.
Appendices - Operational Information
Operation Tools
Lists the necessary tools for installation, operation, and maintenance of the air conditioning unit.
Environmental and Refrigerant Notes
Provides notes on environmental protection, refrigerant handling, and producer/representative information.

Table of Contents