8.2. Soft Dry Operation 18
8.3. Automatic Operation 19
8.4. Operation Control 20
8.5. Indoor Fan Speed Control 23
8.6. Outdoor Fan Speed Control 24
8.7. Vertical Airflow Direction Control 24
8.8. Horizontal Airflow Direction Control 25
8.9. Powerful Operation 25
8.10. Quiet Operation 26
8.11. Ionizer Operation 27
8.12. Timer Control 28
8.13. Random Auto Restart Control 28
8.14. Remote Control Signal Receiving Sound 28
9 Operating Instructions 29
10 Installation Instructions 35
10.1. Safety Precautions 35
10.2. Indoor Unit 38
10.3. Outdoor Unit 42
11 3-way Valve 45
11.1. Air Purging of the Piping and Indoor Unit 46
12 Servicing Information 52
12.1. Indoor Electronic Controllers Removal Procedures 52
• 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 horizontal and vertical airflow.
• Long installation piping up to 25 meter.
• Supersonic Air Purifying System with SUPER alleru-buster.
− Inactive various harmful airbone elements including
allergens, viruses and bacteria.
− Generated supersonic waves enhance the ability to
collect dust and dirt in the air.
• Quality Improvement
− Random auto restart after power failure for safety restart
operation.
− Gas leakage detection.
− Prevent Compressor reverse cycle.
− Inner protector to protect Compressor.
− Noise prevention during soft dry operation.
− Blue coated Condenser for high resistance to corrosion.
− Anti-dew formation control (Cooling & Soft Dry).
• Operation Improvement
− Quiet mode to provide quiet operation.
− Powerful mode to reach the desired room temperature
quickly.
12.2. Cross Flow Fan and Indoor Fan Motor Removal
Procedures 53
12.3. Remote Control Reset 54
12.4. Auto OFF/ON Button 55
13 Troubleshooting Guide 56
13.1. Refrigeration cycle system 56
14 Technical Data 58
14.1. Thermostat characteristics 58
14.2. Operation characteristics 58
15 Exploded View (Indoor Unit) 60
15.1. CS-C18DKD CS-C24DKD 60
16 Replacement Parts List (Indoor Unit) 61
16.1. CS-C18DKD CS-C24DKD 61
17 Exploded View (Outdoor Unit) 62
17.1. CU-C18DKD 62
17.2. CU-C24DKD 63
18 Replacement Parts List (Outdoor Unit) 64
18.1. CU-C18DKD CU-C24DKD 64
19 Electronic Circuit Diagram 65
19.1. Indoor Unit & Outdoor Unit 65
19.2. Remote Control 70
19.3. Print Pattern Indoor Unit Printed Circuit Board 71
19.4. Print Pattern Indicator & Receiver Printed Circuit Board 72
− Ionizer control for generating negative ion in discharge
air.
− 24-hour timer setting.
• Serviceability Improvement
− Removable and washable Front Panel.
1 Features
2
CS-C18DKD CU-C18DKD / CS-C24DKD CU-C24DKD