2
Specifications, designs and contents in this Service Manual are subject to change without notice.
TABLE OF CONTENTS
PAGE
PAGE
1.
Safety Precautions ............................................. 3
2.
Precaution for Using R32 Refrigerant .............. 6
3.
Specifications ................................................... 10
4.
Features ............................................................. 14
5.
Location of Controls and Components .......... 15
5.1
Indoor Unit .................................................. 15
5.2
Remote Control .......................................... 15
6.
Dimensions ....................................................... 16
6.1
Indoor Unit .................................................. 16
7.
Refrigeration Cycle Diagram ........................... 17
8.
Block Diagram .................................................. 18
9.
Wiring Connection Diagram ............................ 19
9.1
Indoor Unit .................................................. 19
10.
Electronic Circuit Diagram .............................. 20
10.1
Indoor Unit .................................................. 20
11.
Printed Circuit Board ....................................... 21
11.1
Indoor Unit .................................................. 21
12.
Installation Instruction ..................................... 23
12.1
Indoor Unit .................................................. 23
13.
Installation and Servicing Air Conditioner
using R32 .......................................................... 31
13.1
About R32 Refrigerant ................................ 31
13.2
Characteristics of R32 Refrigerant ............. 31
13.3
Refrigerant piping installation • Tools used
in services ................................................... 33
13.4
New installation, Relocation,
Repairing of Refrigerant Cycle System
The Procedures .......................................... 37
13.5
Piping installation of R32 ............................ 38
13.6
Installation, Relocation, and Service .......... 39
13.7
Repairing of refrigerant cycle /
Brazing point ............................................... 43
13.8
<Reference> Analysis method for no error
code, no cooling / no warming .................... 49
14.
Operation Control ............................................. 51
14.1
Basic Function ............................................ 51
14.2
Indoor Fan Motor Operation ....................... 52
14.3
Airflow Direction .......................................... 53
14.4
Quiet Operation (Cooling Mode/Cooling
Area of Dry Mode) ...................................... 54
14.5
Quiet Operation (Heating) .......................... 54
14.6
Powerful Mode Operation ........................... 54
14.7
Timer Control .............................................. 55
14.8
Auto Restart Control ................................... 55
14.9
Indication Panel .......................................... 55
14.10
HA Terminal (HAJEM-A) ............................ 56
14.11
nanoeX Operation ...................................... 57
15.
Operation Control
(For Multi Split Connection) ............................ 59
15.1
Cooling operation ....................................... 59
15.2
Soft Dry Operation ...................................... 59
15.3
Heating Operation ...................................... 59
15.4
Automatic Operation ...................................60
15.5
Indoor Fan Motor Operation .......................60
15.6
Powerful Mode Operation ...........................60
15.7
Auto Restart Control ...................................60
15.8
Indication Panel ..........................................60
16.
Servicing Mode .................................................61
16.1
Auto OFF/ON Button ..................................61
16.2
Remote Control Button ...............................62
17.
Troubleshooting Guide ....................................65
17.1
Refrigeration Cycle System ........................65
17.2
Breakdown Self Diagnosis Function ...........67
17.3
Error Codes Table ......................................68
17.4
Self-diagnosis Method ................................70
18.
Disassembly and Assembly Instructions ......99
18.1
Remove the Front Panel ............................99
18.2
Remove the Front Grille .......................... 100
18.3
Remove the Discharge Grille. ................. 101
18.4
Remove the Control Board ...................... 101
18.5
Remove the Drain Pan ............................ 103
18.6
Remove the Cross Flow Fan and
Fan Motor ................................................ 103
19.
Exploded View and Replacement Parts
List .................................................................. 105
19.1
Indoor Unit ............................................... 105
