2 
TABLE OF CONTENTS 
1  Safety Precautions .............................................3 
2  Specification .......................................................5 
3  Location of Controls and Components............9 
3.1  Indoor Unit ....................................................9 
3.2  Outdoor Unit .................................................9 
3.3  Remote Control ............................................9 
4  Dimensions .......................................................10 
4.1  Indoor Unit ..................................................10 
4.2  Outdoor Unit ...............................................12 
5  Refrigeration Cycle Diagram ...........................14 
5.1  CS-S9KKQ  CS-S12KKQ ...........................14 
5.2  CS-S18KKQ  CS-S24KKQ .........................15 
6  Block Diagram ..................................................16 
6.1  CS-S9KKQ  CU-S9KKQ.............................16 
6.2  CS-S12KKQ  CU-S12KKQ.........................17 
6.3  CS-S18KKQ  CU-S18KKQ  CS-S24KKQ  
CU-S24KKQ ...............................................18 
7  Wiring Connection Diagram ............................19 
7.1  Indoor Unit ..................................................19 
7.2  Outdoor Unit ...............................................21 
8  Electronic Circuit Diagram ..............................24 
8.1  Indoor Unit ..................................................24 
8.2  Outdoor Unit ...............................................26 
9  Printed Circuit Board .......................................29 
9.1  Indoor Unit ..................................................29 
9.2  Outdoor Unit ...............................................33 
10  Installation Instruction.....................................37 
10.1  Select The Best Location ...........................37 
10.2  Indoor Unit ..................................................38 
10.3  Outdoor Unit ...............................................42 
11  Operation Control.............................................44 
11.1  Basic Function ............................................44 
11.2  Indoor Fan Motor Operation .......................45 
11.3  Outdoor Fan Motor Operation ....................45 
11.4  Airflow Direction..........................................45 
11.5  Quiet Operation (Cooling Mode/Cooling Area 
of Dry Mode)...............................................46
 
11.6  Powerful Mode Operation...........................47 
11.7  Timer Control..............................................47 
11.8  Random Auto Restart Control ....................47 
11.9  Indication Panel ..........................................48 
11.10  Patrol Operation .........................................48 
11.11  E-Ion Operation ..........................................51 
11.12  Mild Dry Cooling Operation ........................53 
11.13  ECO Patrol Operation ................................54 
12  Protection Control............................................58 
12.1  Restart Control (Time Delay Safety Control)..
 ....................................................................58
 
12.2  30 Seconds Forced Operation ...................58 
12.3  Total Running Current Control ...................58 
12.4  IPM (Power Transistor) Prevention Control ...
 ................................................................... 58
 
12.5  Compressor Overheating Prevention Control 
(For S18, S24KK only)............................... 59
 
12.6  Low Pressure Prevention Control (Gas 
Leakage Detection) ................................... 59 
12.7  Compressor Tank Temperature Rise 
Protection Control...................................... 59 
12.8  Low Frequency Protection Control 1......... 59 
12.9  Low Frequency Protection Control 2......... 60 
12.10  Outdoor Air Temperature Control.............. 60 
12.11  Cooling Overload Control .......................... 60 
12.12  Freeze Prevention Control ........................ 60 
12.13  Freeze Prevention Control 2 ..................... 60 
12.14  Dew Prevention Control ............................ 60 
12.15  Odor Cut Control ....................................... 61 
13  Servicing Mode ................................................ 62 
13.1  Auto Off/On Button .................................... 62 
13.2  Remote Control Button.............................. 63 
14  Troubleshooting Guide................................... 64 
14.1  Refrigeration Cycle System....................... 64 
14.2  Breakdown Self Diagnosis Function.......... 66 
14.3  Error Code Table ....................................... 67 
14.4  Troubleshooting Flowchart ........................ 68 
15  Disassembly and Assembly Instructions ..... 93 
15.1  CS-S9KK  CS-S12KK................................ 93 
15.2  CS-S18KK  CS-S24KK.............................. 97 
16  Technical Data ............................................... 101 
16.1  Operation Characteristics........................ 101 
17  Exploded View and Replacement Pars List 109 
17.1  Indoor Unit ............................................... 109 
17.2  Outdoor Unit ............................................ 114