2 
TABLE OF CONTENTS 
PAGE     PAGE
1.  Safety Precautions .............................................3 
2.  Specification .......................................................5 
3.  Features...............................................................9 
4.  Location of Controls and Components..........10 
4.1  Indoor Unit ..................................................10 
4.2  Outdoor Unit ...............................................10 
4.3  Remote Control ..........................................10 
5.  Dimensions .......................................................11 
5.1  Indoor Unit ..................................................11 
5.2  Outdoor Unit ...............................................13 
6.  Refrigeration Cycle Diagram ...........................15 
7.  Block Diagram ..................................................16 
8.  Wiring Connection Diagram ............................19 
8.1  CS-C12PKF  CU-C12PKF..........................19 
8.2  CS-C18PKF  CU-C18PKF..........................20 
8.3  CS-C24PKF  CU-C24PKF..........................21 
8.4  CS-C28PKF  CU-C28PKF..........................22 
9.  Electronic Circuit Diagram ..............................23 
9.1  CS-C12PKF  CU-C12PKF..........................23 
9.2  CS-C18PKF  CU-C18PKF..........................24 
9.3  CS-C24PKF  CU-C24PKF..........................25 
9.4  CS-C28PKF  CU-C28PKF..........................26 
10.  Printed Circuit Board .......................................27 
10.1  Indoor Unit ..................................................27 
11.  Installation Instruction.....................................30 
11.1  Select the Best Location.............................30 
11.2  Indoor Unit ..................................................31 
11.3  Outdoor Unit ...............................................36 
12.  Installation Instruction.....................................40 
12.1  Select the Best Location.............................40 
12.2  Indoor Unit ..................................................41 
12.3  Outdoor Unit ...............................................45 
13.  Operation Control.............................................49 
13.1  Cooling Operation.......................................49 
13.2  Soft Dry Operation......................................51 
13.3  Automatic Operation...................................53 
13.4  Indoor Fan Speed Control ..........................54 
13.5  Outdoor Fan Speed Control .......................56 
13.6  Vertical Airflow Direction Control................56 
13.7  Horizontal Airflow Direction Control............58 
13.8  Powerful Operation.....................................59 
13.9  Quiet Operation ..........................................59 
13.10  Timer Control..............................................60 
13.11  Random Auto Restart Control ....................60 
13.12  Remote Control Signal Receiving  
Sound .........................................................60
 
13.13  nanoe-G Operation.....................................61 
13.14  In-filter Deactivation Operation...................63 
13.15  AUTO COMFORT and ECO NAVI  
Operation....................................................64 
14.  Protection Control........................................... 72 
14.1  Restart Control (Time Delay Safety  
Control)...................................................... 72 
14.2  7 Minutes Time Save Control .................... 72 
14.3  60 Seconds Forced Operation .................. 72 
14.4  Starting Current Control ............................ 72 
14.5  Freeze Prevention Control ........................ 73 
14.6  Compressor Reverse Rotation Protection  
Control ....................................................... 73 
14.7  Dew Prevention Control ............................ 74 
15.  Servicing Mode ................................................ 75 
15.1  Auto OFF/ON Button ................................. 75 
15.2  Remote Control Button.............................. 76 
16.  Troubleshooting Guide................................... 77 
16.1  Refrigeration cycle system ........................ 77 
17.  Disassembly and Assembly Instructions ..... 79 
17.1  CS-C12PKF............................................... 79 
17.2  CS-C18PKF  CS-C24PKF  CS-C28PKF... 83 
18.  Technical Data ................................................. 87 
18.1  Operation Characteristics.......................... 87 
19.  Exploded View and Replacement Parts  
List .................................................................... 95
 
19.1  Indoor Unit ................................................. 95 
19.2  Outdoor Unit ............................................ 101