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TABLE OF CONTENTS
1. Safety Precautions .............................................3
2. Specification .......................................................5
3. Features.............................................................13
4. Location of Controls and Components..........14
4.1 Indoor Unit ..................................................14
4.2 Outdoor Unit ...............................................14
4.3 Remote Control ..........................................14
5. Dimensions .......................................................15
5.1 Indoor Unit ..................................................15
5.2 Outdoor Unit ...............................................17
6. Refrigeration Cycle Diagram ...........................19
6.1 CS-A9KKD CU-A9KKD CS-A12KKD CU-
A12KKD......................................................19
6.2 CS-A18KKD CU-A18KKD CS-A24KKD CU-
A24KKD CS-A28KKD CU-A28KKD ...........20
7. Block Diagram ..................................................21
7.1 CS-A9KKD CU-A9KKD ..............................21
7.2 CS-A12KKD CU-A12KKD ..........................22
7.3 CS-A18KKD CU-A18KKD CS-A24KKD CU-
A24KKD......................................................23
7.4 CS-A28KKD CU-A28KKD ..........................24
8. Wiring Connection Diagram ............................25
8.1 CS-A9KKD CU-A9KKD ..............................25
8.2 CS-A12KKD CU-A12KKD ..........................26
8.3 CS-A18KKD CU-A18KKD CS-A24KKD CU-
A24KKD......................................................27
8.4 CS-A28KKD CU-A28KKD ..........................28
9. Electronic Circuit Diagram ..............................29
9.1 CS-A9KKD CU-A9KKD ..............................29
9.2 CS-A12KKD CU-A12KKD ..........................30
9.3 CS-A18KKD CU-A18KKD CS-A24KKD CU-
A24KKD......................................................31
9.4 CS-A28KKD CU-A28KKD ..........................32
10. Printed Circuit Board .......................................33
10.1 Indoor Unit ..................................................33
11. Installation Instruction.....................................37
11.1 Select the Best Location.............................37
11.2 Indoor Unit ..................................................38
11.3 Outdoor Unit ...............................................42
12. Operation Control.............................................46
12.1 Heating Operation ......................................46
12.2 Cooling Operation.......................................48
12.3 Soft Dry Operation......................................50
12.4 Automatic Operation...................................52
12.5 Indoor Fan Speed Control ..........................53
12.6 Outdoor Fan Speed Control .......................57
12.7 Vertical Airflow Direction Control................58
12.8 Horizontal Airflow Direction Control............60
12.9 Powerful Operation.....................................61
12.10 Quiet Operation ..........................................62
12.11 Timer Control............................................. 64
12.12 Random Auto Restart Control ................... 64
12.13 Remote Control Signal Receiving Sound .. 64
12.14 Patrol Operation ........................................ 65
12.15 E-ion operation .......................................... 69
12.16 ECO Patrol Operation................................ 72
13. Protection Control ........................................... 77
13.1 Restart Control (Time Delay Safety Control)..
................................................................... 77
13.2 7 Minutes Time Save Control .................... 77
13.3 60 Seconds Forced Operation .................. 77
13.4 Starting Current Control ............................ 77
13.5 Freeze Prevention Control ........................ 77
13.6 Compressor Reverse Rotation Protection
Control ....................................................... 78
13.7 Dew Prevention Control ............................ 78
13.8 30 Minutes Time Save Control .................. 78
13.9 Compressor Overload Protection Control . 78
13.10 4-Way Valve Control.................................. 78
13.11 Outdoor Fan Motor Control ....................... 79
13.12 Hot Start Control........................................ 79
13.13 Cold Draft Prevention Control ................... 79
13.14 Deice Control............................................. 80
13.15 Restart Control (Time Delay Safety Control)..
................................................................... 82
13.16 7 Minutes Time Save Control .................... 82
13.17 60 Seconds Forced Operation .................. 82
13.18 Starting Current Control ............................ 82
13.19 Freeze Prevention Control ........................ 82
13.20 Compressor Reverse Rotation Protection
Control ....................................................... 83
13.21 Dew Prevention Control ............................ 83
13.22 Restart Control (Time Delay Safety Control)..
................................................................... 83
13.23 Compressor Reverse Rotation Protection
Control ....................................................... 83
13.24 Overload Protection Control ...................... 84
13.25 4-Way Valve Control.................................. 84
13.26 Hot Start Control........................................ 84
13.27 Cold Draft Prevention Control ................... 85
13.28 Deice Control............................................. 85
14. Servicing Mode ................................................ 87
14.1 Auto OFF/ON Button ................................. 87
14.2 Remote Control Button.............................. 88
15. Troubleshooting Guide................................... 89
15.1 Refrigeration cycle system ........................ 89
16. Disassembly and Assembly Instructions ..... 91
16.1 CS-A9KKD CS-A12KKD .......................... 91
16.2 CS-A18KKD CS-A24KKD CS-A28KKD .. 95
17. Technical Data ................................................. 99
17.1 Thermostat Characteristics ....................... 99
17.2 Operation Characteristics........................ 100
18. Exploded View and Replacement Parts List120
18.1 Indoor Unit ............................................... 120
18.2 Outdoor Unit ............................................ 126
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