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10.5. Indoor unit 37
10.6. Outdoor unit
40
11 2-way, 3-way Valve
45
11.1. Evacuation of Installation
46
11.2. Pumping down
47
11.3. Evacuation of Re-installation
48
11.4. Balance refrigerant of the 2-way, 3-way valves
49
11.5. Evacuation
50
11.6. Gas charging
51
12 Servicing Information
52
12.1. Distinction of Lead Free (PbF) Printed Circuit Board
52
12.2. Indoor Electronic Controller Removal Procedures
52
12.3. Indoor Fan Motor and Cross Flow Fan Removal
Procedures
54
12.4. Auto OFF/ON Button
55
12.5. Remote Control Reset
56
• High Efficiency
• Compact Design
• Wider range of horizontal discharge air.
• Air Filter with function to reduce dust and smoke.
• Automatic air swing and manual adjusted by Remote
Control for vertical airflow.
• Long installation piping.
− CS/CU-C9DKU, long piping up to 33ft.
− CS/CU-C12DKU, long piping up to 49ft.
13 Troubleshooting Guide 57
13.1. Refrigeration cycle system
57
13.2. Relationship between the condition of the air conditioner
and pressure and electric current
58
13.3. Diagnosis methods of a malfunction of a compressor
58
14 Technical Data
59
14.1. Thermostat characteristics
59
14.2. Operation characteristics
60
15 Exploded View (Indoor Unit)
64
16 Replacement Parts List (Indoor Unit)
65
17 Exploded View (Outdoor Unit)
66
18 Replacement Parts List (Outdoor Unit)
67
19 Electronic Circuit Diagram
68
19.1. Indoor Unit
68
19.2. Remote Control
74
19.3. Print Pattern Indoor Unit Printed Circuit Board
75
• Quality Improvement
− Random auto restart after power failure for safety restart
operation.
− Gas leakage protection.
− Prevent Compressor reverse cycle.
− Inner protector to protect Compressor.
− Noise prevention during soft dry operation.
− Blue Coated Condenser for high resistance to corrosion.
• Operation Improvement
− Quiet mode to provide quiet operation.
− Powerful mode to reach the desired room temperature
quickly.
− 24-hour timer setting.
• Serviceability Improvement
− Removable and washable Front Panel.
1 Features
2
CS-C9DKU CU-C9DKU / CS-C12DKU CU-C12DKU