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Installation and Maintenance Manual
CSU-05HCAA
CSU-09HCAA
CSU-18HCAA
CSU-24HCAA
CSU-09HHAA
CSU-18HHAA
CSU-24HHAA
CSU-07HCAA
CSU-12HCAA
CSU-21HCAA
CSU-12HHAA
CSU-21HHAA

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Summarization of Contents

VI. Installation Instructions
1. Installation Diagram
Visual guide for installing the indoor and outdoor units.
2. Safety Regulations
Critical safety precautions and warnings for installation and repair.
3. Unit Installation Procedures
Detailed steps for unit installation, location, and mounting.
4. Connection and Test Run
Procedures for connecting units, pipes, and performing initial tests.
5. Post-Installation Steps
Steps for face plate installation, unit disassembly, and refrigerant replenishment.
VII. Troubleshooting
1. Precautions for Malfunction Repair
Safety guidelines and general checks before performing repairs.
2. Troubleshooting Flow Chart
Visual guide to diagnose common operational issues.
3. Trouble Selfchecking Table
Table correlating LED displays with symptoms and faults.
4. Fault Standards of Main Components
Specifications for testing key components for faults.
A. Inspection of Indoor Fan Motor
Specific troubleshooting steps for the indoor fan motor.
B. Inspection on the Receiver Circuit Board
Diagnostic procedures for the receiver circuit board.
C. Inspection on Indoor Electric Control Board
Checks for the indoor unit's electric control board.
D. Inspection of Outdoor Unit
Troubleshooting steps for the outdoor unit.
E. Location of Detecting Points and Voltage
Identifying points for voltage measurements on circuit boards.
VIII. Parts List
5K/7K/9K/12K Indoor Unit Parts
List of components for indoor units (5K-12K models).
12K,18K Series Outdoor Unit Parts
Component list for 12K/18K series outdoor units.
21K,24K Series Outdoor Unit Parts
Component list for 21K/24K series outdoor units.
Remote Control and Others Parts
Parts list for remote controls and associated accessories.