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TABLE OF CONTENTS
1.
Safety Precautions ............................................. 3
2.
Specification ....................................................... 5
3.
Features ............................................................. 38
4.
Location of Controls and Components .......... 39
4.1
Indoor Unit .................................................. 39
4.2
Outdoor Unit ............................................... 39
4.3
Remote Control .......................................... 39
5.
Dimensions ....................................................... 40
5.1
Indoor Unit .................................................. 40
5.2
Outdoor Unit ............................................... 42
6.
Refrigeration Cycle Diagram ........................... 44
6.1
CU-E7RKD ................................................. 44
6.2
CU-E9RKD CU-E12RKD CU-E15RKD .... 45
6.3
CU-E18RKD ............................................... 46
6.4
CU-E24RKD ............................................... 47
6.5
CU-E28RKD ............................................... 48
7.
Block Diagram .................................................. 49
7.1
CU-E7RKD ................................................. 49
7.2
CU-E9RKD CU-E12RKD CU-E15RKD .... 50
7.3
CU-E18RKD ............................................... 51
7.4
CU-E24RKD CU-E28RKD ......................... 52
8.
Wiring Connection Diagram ............................ 53
8.1
Indoor Unit .................................................. 53
8.2
Outdoor Unit ............................................... 54
9.
Electronic Circuit Diagram .............................. 59
9.1
Indoor Unit .................................................. 59
9.2
Outdoor Unit ............................................... 60
10.
Printed Circuit Board ....................................... 65
10.1
Indoor Unit .................................................. 65
10.2
Outdoor Unit ............................................... 68
11.
Installation Instruction ..................................... 72
11.1
Select the Best Location ............................. 72
11.2
Indoor Unit .................................................. 73
11.3
Outdoor Unit ............................................... 77
12.
Operation and Control ..................................... 81
12.1
Basic Function ............................................ 81
12.2
Indoor Fan Motor Operation ....................... 83
12.3
Outdoor Fan Motor Operation .................... 83
12.4
Airflow Direction .......................................... 84
12.5
Quiet operation (Cooling Mode/Cooling
area of Dry Mode) ....................................... 86
area of Dry Mode) ....................................... 86
12.6
Quiet operation (Heating) ........................... 86
12.7
Timer Control .............................................. 87
12.8
Auto Restart Control ................................... 87
12.9
Indication Panel .......................................... 87
12.10
nanoe-G Operation ..................................... 88
12.11
In-filter Deactivation Operation ................... 90
12.12
AUTO COMFORT and ECONAVI
Operation .................................................... 91
Operation .................................................... 91
13.
Operation Control
(For Multi Split Connection) ............................ 99
(For Multi Split Connection) ............................ 99
13.1
Cooling operation .......................................99
13.2
Soft Dry Operation ......................................99
13.3
Heating Operation ......................................99
13.4
Automatic Operation ................................ 100
13.5
Indoor Fan Motor Operation .................... 100
13.6
Auto restart control .................................. 100
13.7
Indication Panel ....................................... 100
13.8
i-Auto X Operation ................................... 100
14.
Protection Control (E7 ~ 18RK) .................... 101
14.1
Protection Control For All Operations ...... 101
14.2
Protection Control For Cooling & Soft Dry
Operation ................................................. 103
Operation ................................................. 103
14.3
Protection Control For Heating
Operation ................................................. 104
Operation ................................................. 104
15.
Protection Control (E24 ~ 28RK) .................. 105
15.1
Protection Control For All Operations ...... 105
15.2
Protection Control For Cooling & Soft Dry
Operation ................................................. 107
Operation ................................................. 107
15.3
Protection Control For Heating
Operation ................................................. 108
Operation ................................................. 108
16.
Servicing Mode .............................................. 109
16.1
Auto OFF/ON Button ............................... 109
16.2
Remote Control Button ............................ 110
17.
Troubleshooting Guide ................................. 111
17.1
Refrigeration Cycle System ..................... 111
17.2
Breakdown Self Diagnosis Function ........ 113
17.3
Error Code Table ..................................... 114
17.4
Self-diagnosis Method ............................. 116
18.
Disassembly and Assembly Instructions ... 142
18.1
CS-E7RKDW CS-E9RKDW
CS-E12RKDW CS-E15RKDW ............... 142
CS-E12RKDW CS-E15RKDW ............... 142
18.2
CS-E18RKDW CS-E24RKDW
CS-E28RKDS .......................................... 146
CS-E28RKDS .......................................... 146
18.3
Outdoor Electronic Controller Removal
Procedure ................................................ 150
Procedure ................................................ 150
19.
Technical Data ............................................... 153
19.1
Cool Mode Performance Data ................. 153
19.2
Heat Mode Performance Data ................. 155
20.
Service Data ................................................... 157
20.1
Cool Mode Outdoor Air Temperature
Characteristic ........................................... 157
Characteristic ........................................... 157
20.2
Heat Mode Outdoor Air Temperature
Characteristic ........................................... 164
Characteristic ........................................... 164
20.3
Piping Length Correction Factor .............. 171
21.
Exploded View and Replacement Parts
List .................................................................. 174
List .................................................................. 174
21.1
Indoor Unit ............................................... 174
21.2
Outdoor Unit ............................................ 184
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