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EN
SERVICE MANUAL
UNI SPLIT SERIES
ASC-xxBI, ASD-xxBI, ASF-xxBI,
ASGE-xxBI, ASGE-xxBI-3

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Summarization of Contents

Safety Notice
Safety Notice on Maintenance
Important safety precautions for maintaining the air conditioner, covering prohibitions and warnings.
Safety Notice on Operation
Critical safety guidelines for operating the air conditioning unit, including prohibitions and warnings.
1. Product Introduction
1.1 Lists of Units
Lists the different models of indoor and outdoor units available in the series.
1.2 Electrical Parameters
Specifies electrical requirements, circuit breaker capacity, and power cord details for units.
2. Control
2.1 Operation Mode
Describes the operational modes of the air conditioner, including cooling and heating cycles.
2.2 Control Mode
Explains different control modes, special features, and protection mechanisms.
2.3 Functions
Lists and describes various user-selectable functions and settings.
2.3.10 Connect to Interface of Centralized Control
Details how to connect the unit to a centralized control system.
3. Troubleshooting
3.1 Wiring Diagrams
Provides detailed wiring diagrams for outdoor and indoor units.
3.2 PCB Layout
Illustrates the layout of components on the Printed Circuit Board (PCB).
3.3 Error Code
A comprehensive list of error codes and their corresponding descriptions.
3.4 Troubleshooting
Step-by-step guides for diagnosing and resolving common operational issues.
3.5 Failures Not Caused by Errors
Guides on checking common operational failures not related to error codes.
4. Maintenance
4.1 System Diagram
Provides a schematic overview of the air conditioning system components.
4.2 Connection Pipe Vacuum Pumping
Detailed steps for performing vacuum pumping on connection pipes.
4.3 Refrigerant Charging
Instructions for charging refrigerant into the system, including pre-charging.
4.4 Maintenance of Major Components
Procedures for maintaining key components of the unit.
Appendices
1. Resistance/temperature lists of temperature sensors
Tables listing resistance and voltage values for temperature sensors at different temperatures.
2. Temperature/Pressure List of Refrigerant
Data correlating refrigerant pressure and temperature for R32.
3. Refrigerant Notice/Concentration
Information on R32 refrigerant, installation areas, and minimum construction areas.
4. Operation Tools
Lists the necessary tools for operating and maintaining the air conditioner.

Table of Contents