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ENG
Service
manual
ACP-09CH25AEF
ACP-12CH35AEF
ACP-18CH50AEF
ACP-09CH25AEG
ACP-12CH35AEG
ACP-18CH50AEG
ACP-24CH70AEG
NNO-1/09
RoHS

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Table of Contents
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Summarization of Contents

Precautionary Measures
Safety Precautions
General instructions to prevent injury to users and property damage.
Installation Warnings
Specific warnings for electrical work, grounding, circuit breakers, and handling.
Product Functionality Overview
Model Identification by Capacity
Lists indoor and outdoor unit model names based on cooling capacity (9k to 24k).
Unit Dimensions and Installation Clearances
Indoor Unit Dimensions
Detailed physical dimensions and required installation clearances for indoor units.
Outdoor Unit Dimensions
Detailed physical dimensions and required installation clearances for outdoor units.
Refrigerant Cycle and Wiring Diagrams
Refrigerant Cycle Diagram
Illustrates the flow of refrigerant through the cooling and heating cycles.
Indoor Unit Wiring Diagrams
Schematics detailing electrical connections for various indoor unit models.
Installation Procedures and Specifications
Wrench Torque and Cable Connection
Specifications for tightening torque and selecting power cord cross-sectional area.
Pipe Length and Elevation Guidelines
Guidance on pipe length, elevation limits, and additional refrigerant amounts.
Refrigerant Handling and Purging
Procedures for air purging, pumping down, re-air purging, and balancing refrigerant.
Evacuation and Gas Charging
Steps for system evacuation to remove moisture and gas charging with refrigerant.
Operation Characteristics and Controls
Operating Temperature and Humidity Limits
Defines optimal operating temperature ranges for cooling, heating, and drying modes.
Electronic Functions and Protections
Explains abbreviations, display icons, and main protection features.
Operation Modes and Functions
Explains various operational modes (fan, cooling, heating, auto, drying) and specific functions.
Troubleshooting and Error Diagnosis
Indoor Unit Error Display Codes
Correlates lamp indicators with specific indoor unit malfunctions.
Diagnosis and Solution Procedures
Flowcharts for diagnosing and resolving common issues like sensor, EEPROM, and fan problems.

Table of Contents