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Specifications, designs and contents in this Service Manual are subject to change without notice.
2
TABLE OF CONTENTS
PAGE
PAGE
1.
Safety Precautions ............................................. 3
2.
Precaution for Using R32 Refrigerant .............. 5
3.
Specifications ..................................................... 9
4.
Features ............................................................. 18
5.
Location of Controls and Components .......... 19
5.1
Indoor Unit .................................................. 19
5.2
Outdoor Unit ............................................... 19
5.3
Remote Control .......................................... 19
6.
Dimensions ....................................................... 20
6.1
Indoor Unit .................................................. 20
6.2
Outdoor Unit ............................................... 21
7.
Refrigeration Cycle Diagram ........................... 22
8.
Block Diagram .................................................. 23
8.1
Indoor Unit .................................................. 23
8.2
Outdoor Unit ............................................... 24
9.
Wiring Connection Diagram ............................ 26
9.1
Indoor Unit .................................................. 26
9.2
Outdoor Unit ............................................... 27
10.
Electronic Circuit Diagram .............................. 28
10.1
Indoor Unit .................................................. 28
10.2
Outdoor Unit ............................................... 29
11.
Printed Circuit Board ....................................... 30
11.1
Indoor Unit .................................................. 30
11.2
Outdoor Unit ............................................... 32
12.
Installation Instruction ..................................... 33
12.1
Indoor Unit .................................................. 33
12.2
Outdoor Unit ............................................... 41
13.
Installation and Servicing Air Conditioner
using R32 .......................................................... 46
using R32 .......................................................... 46
13.1
About R32 Refrigerant ................................ 46
13.2
Characteristics of R32 Refrigerant ............. 46
13.3
Refrigerant piping installation • Tools used
in services ................................................... 48
in services ................................................... 48
13.4
New installation, Relocation, Repairing of
Refrigerant Cycle System The
Procedures ................................................. 52
Refrigerant Cycle System The
Procedures ................................................. 52
13.5
Piping installation of R32 ............................ 53
13.6
Installation, Relocation, and Service .......... 54
13.7
Repairing of refrigerant cycle / Brazing
point ............................................................ 58
point ............................................................ 58
13.8
<Reference> Analysis method for no error
code, no cooling / no warming .................... 64
code, no cooling / no warming .................... 64
14.
Operation Control ............................................. 66
14.1
Basic Function ............................................ 66
14.2
Indoor Fan Motor Operation ....................... 67
14.3
Outdoor Fan Motor Operation .................... 68
14.4
Airflow Direction .......................................... 69
14.5
Timer Control .............................................. 70
14.6
Sleep Mode Operation ............................... 71
14.7
Auto Restart Control ...................................71
14.8
Indication Panel ..........................................71
14.9
Quiet Operation (Cooling Mode/Cooling
Area of Dry Mode) ......................................71
Area of Dry Mode) ......................................71
14.10
Quiet Operation (Heating) ..........................72
14.11
Powerful Mode Operation ...........................72
15.
Operation Control (For Multi Split
Connection) .......................................................73
Connection) .......................................................73
15.1
Cooling operation .......................................73
15.2
Soft Dry Operation ......................................73
15.3
Heating Operation ......................................73
15.4
Automatic Operation ...................................74
15.5
Indoor Fan Motor Operation .......................74
15.6
Powerful Mode Operation ...........................74
15.7
Auto Restart Control ...................................74
15.8
Indication Panel ..........................................74
16.
Protection Control ............................................75
16.1
Protection Control for All Operations ..........75
16.2
Protection Control for Cooling & Soft Dry
Operation ....................................................77
Operation ....................................................77
16.3
Protection Control for Heating Operation ...78
17.
Servicing Mode .................................................80
17.1
Auto OFF/ON Button ..................................80
17.2
Heat Only Operation ...................................81
17.3
Remote Control Button ...............................82
18.
Troubleshooting Guide ....................................85
18.1
Refrigeration Cycle System ........................85
18.2
Breakdown Self Diagnosis Function ...........87
18.3
Error Codes Table ......................................88
18.4
Self-diagnosis Method ................................90
19.
Disassembly and Assembly Instructions ... 118
19.1
Indoor Electronic Controllers, Cross Flow
Fan and Indoor Fan Motor Removal
Procedures .............................................. 118
Fan and Indoor Fan Motor Removal
Procedures .............................................. 118
19.2
Outdoor Electronic Controller Removal
Procedure ................................................ 122
Procedure ................................................ 122
20.
Technical Data ............................................... 123
20.1
Cool Mode Performance Data ................. 123
20.2
Heat Mode Performance Data ................. 124
21.
Service Data ................................................... 125
21.1
Cool Mode Outdoor Air Temperature
Characteristic ........................................... 125
Characteristic ........................................... 125
21.2
Heat Mode Outdoor Air Temperature
Characteristic ........................................... 129
Characteristic ........................................... 129
21.3
Piping Length Correction Factor .............. 133
22.
Exploded View and Replacement Parts
List .................................................................. 134
List .................................................................. 134
22.1
Indoor Unit ............................................... 134
22.2
Outdoor Unit ............................................ 137
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