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TABLE OF CONTENTS
1. Safety Precautions .............................................3
2. Specification .......................................................5
3. Features.............................................................14
4. Location of Controls and Components..........15
4.1 Indoor Unit ..................................................15
4.2 Outdoor Unit ...............................................15
4.3 Remote Control ..........................................15
5. Dimensions .......................................................16
5.1 Indoor Unit ..................................................16
5.2 Outdoor Unit ...............................................18
6. Refrigeration Cycle Diagram ...........................20
6.1 CS-A9MKD CU-A9MKD
CS-A12MKD CU-A12MKD .........................20
6.2 CS-A18MKD CU-A18MKD
CS-A24MKD CU-A24MKD
CS-A28MKD CU-A28MKD .........................21
7. Block Diagram ..................................................22
7.1 CS-A9MKD CU-A9MKD .............................22
7.2 CS-A12MKD CU-A12MKD .........................23
7.3 CS-A18MKD CU-A18MKD
CS-A24MKD CU-A24MKD .........................24
7.4 CS-A28MKD CU-A28MKD .........................25
8. Wiring Connection Diagram ............................26
8.1 CS-A9MKD CU-A9MKD .............................26
8.2 CS-A12MKD CU-A12MKD .........................27
8.3 CS-A18MKD CU-A18MKD
CS-A24MKD CU-A24MKD .........................28
8.4 CS-A28MKD CU-A28MKD .........................29
9. Electronic Circuit Diagram ..............................30
9.1 CS-A9MKD CU-A9MKD .............................30
9.2 CS-A12MKD CU-A12MKD .........................31
9.3 CS-A18MKD CU-A18MKD
CS-A24MKD CU-A24MKD .........................32
9.4 CS-A28MKD CU-A28MKD .........................33
10. Printed Circuit Board .......................................34
10.1 Indoor Unit ..................................................34
11. Installation Instruction.....................................38
11.1 Select the Best Location.............................38
11.2 Indoor Unit ..................................................39
11.3 Outdoor Unit ...............................................43
12. Operation Control.............................................47
12.1 Heating Operation ......................................47
12.2 Cooling Operation.......................................50
12.3 Soft Dry Operation......................................52
12.4 Automatic Operation...................................54
12.5 Indoor Fan Speed Control ..........................55
12.6 Outdoor Fan Speed Control .......................59
12.7 Vertical Airflow Direction Control................60
12.8 Horizontal Airflow Direction Control............62
12.9 Powerful Operation.....................................63
12.10 Quiet Operation ..........................................64
12.11 Timer Control............................................. 66
12.12 Random Auto Restart Control ................... 66
12.13 Remote Control Signal Receiving Sound .. 66
12.14 Patrol Operation ........................................ 67
12.15 E-ion operation .......................................... 71
12.16 AUTO COMFORT and ECO NAVI Operation
................................................................... 74
13. Protection Control........................................... 79
13.1 Restart Control (Time Delay Safety Control)..
................................................................... 79
13.2 7 Minutes Time Save Control .................... 79
13.3 60 Seconds Forced Operation .................. 79
13.4 Starting Current Control ............................ 79
13.5 Freeze Prevention Control ........................ 79
13.6 Compressor Reverse Rotation Protection
Control ....................................................... 80
13.7 Dew Prevention Control ............................ 80
13.8 30 Minutes Time Save Control .................. 80
13.9 Compressor Overload Protection Control . 80
13.10 4-Way Valve Control.................................. 80
13.11 Outdoor Fan Motor Control ....................... 81
13.12 Hot Start Control........................................ 81
13.13 Cold Draft Prevention Control ................... 81
13.14 Deice Control............................................. 82
13.15 Restart Control (Time Delay Safety Control)..
................................................................... 84
13.16 7 Minutes Time Save Control .................... 84
13.17 60 Seconds Forced Operation .................. 84
13.18 Starting Current Control ............................ 84
13.19 Freeze Prevention Control ........................ 84
13.20 Compressor Reverse Rotation Protection
Control ....................................................... 85
13.21 Dew Prevention Control ............................ 85
13.22 Restart Control (Time Delay Safety Control)..
................................................................... 85
13.23 Compressor Reverse Rotation Protection
Control ....................................................... 85
13.24 Overload Protection Control ...................... 86
13.25 4-Way Valve Control.................................. 86
13.26 Hot Start Control........................................ 86
13.27 Cold Draft Prevention Control ................... 87
13.28 Deice Control............................................. 87
14. Servicing Mode ................................................ 89
14.1 Auto OFF/ON Button ................................. 89
14.2 Remote Control Button.............................. 90
15. Troubleshooting Guide................................... 91
15.1 Refrigeration cycle system ........................ 91
16. Disassembly and Assembly Instructions ..... 93
16.1 CS-A9MKD CS-A12MKD ......................... 93
16.2 CS-A18MKD CS-A24MKD CS-A28MKD. 97
17. Technical Data ............................................... 101
17.1 Thermostat Characteristics ..................... 101
17.2 Operation Characteristics........................ 102
18. Exploded View and Replacement Parts List122
18.1 Indoor Unit ............................................... 122
18.2 Outdoor Unit ............................................ 128
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