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TABLE OF CONTENTS
PAGE PAGE
1. Safety Precautions ............................................. 3
2. Precaution for Using R32 Refrigerant .............. 5
3. Specifications ..................................................... 9
4. Features ............................................................. 20
5. Location of Controls and Components .......... 21
5.1 Indoor Unit .................................................. 21
5.2 Outdoor Unit ............................................... 21
5.3 Remote Control .......................................... 21
6. Dimensions ....................................................... 22
6.1 Indoor Unit .................................................. 22
6.2 Outdoor Unit ............................................... 23
7. Refrigeration Cycle Diagram ........................... 24
8. Block Diagram .................................................. 25
8.1 Indoor Unit .................................................. 25
8.2 Outdoor Unit ............................................... 26
9. Wiring Connection Diagram ............................ 29
9.1 Indoor Unit .................................................. 29
9.2 Outdoor Unit ............................................... 30
10. Electronic Circuit Diagram .............................. 33
10.1 Indoor Unit .................................................. 33
10.2 Outdoor Unit ............................................... 34
11. Printed Circuit Board ....................................... 37
11.1 Indoor Unit .................................................. 37
11.2 Outdoor Unit ............................................... 39
12. Installation Instruction ..................................... 42
12.1 Select the Best Location ............................. 42
12.2 Indoor Unit .................................................. 43
12.3 Outdoor Unit ............................................... 48
13. Installation and Servicing Air Conditioner
using R32 .......................................................... 54
13.1 About R32 Refrigerant ................................ 54
13.2 Characteristics of R32 Refrigerant ............. 54
13.3 Refrigerant piping installation • Tools used
in services ................................................... 56
13.4 New installation, Relocation, Repairing of
Refrigerant Cycle System The
Procedures ................................................. 60
13.5 Piping installation of R32 ............................ 61
13.6 Installation, Relocation, and Service .......... 62
13.7 Repairing of refrigerant cycle / Brazing
point ............................................................ 66
13.8 <Reference> Analysis method for no error
code, no cooling / no warming .................... 72
14. Operation Control ............................................. 74
14.1 Basic Function ............................................ 74
14.2 Indoor Fan Motor Operation ....................... 75
14.3 Outdoor Fan Motor Operation .................... 76
14.4 Airflow Direction .......................................... 77
14.5 Timer Control .............................................. 78
14.6 Sleep Mode Operation ............................... 79
14.7 Auto Restart Control ................................... 79
14.8 Indication Panel ..........................................79
14.9 Quiet Operation (Cooling Mode/Cooling
Area of Dry Mode) ......................................79
14.10 Quiet Operation (Heating) ..........................80
14.11 Powerful Mode Operation ...........................80
15. Operation Control (For Multi Split
Connection) .......................................................81
15.1 Cooling operation .......................................81
15.2 Soft Dry Operation ......................................81
15.3 Heating Operation ......................................81
15.4 Automatic Operation ...................................82
15.5 Indoor Fan Motor Operation .......................82
15.6 Powerful Mode Operation ...........................82
15.7 Auto Restart Control ...................................82
15.8 Indication Panel ..........................................82
16. Protection Control ............................................83
16.1 Protection Control for All Operations ..........83
16.2 Protection Control for Cooling & Soft Dry
Operation ....................................................85
16.3 Protection Control for Heating
Operation ....................................................86
17. Servicing Mode .................................................88
17.1 Auto OFF/ON Button ..................................88
17.2 Heat Only Operation ...................................89
17.3 Remote Control Button ...............................90
18. Troubleshooting Guide ....................................93
18.1 Refrigeration Cycle System ........................93
18.2 Breakdown Self Diagnosis Function ...........95
18.3 Error Codes Table ......................................96
18.4 Self-diagnosis Method ................................98
19. Disassembly and Assembly Instructions ... 126
19.1 Indoor Electronic Controllers, Cross Flow
Fan and Indoor Fan Motor Removal
Procedures .............................................. 126
19.2 Outdoor Electronic Controller Removal
Procedure ................................................ 130
20. Technical Data ............................................... 132
20.1 Cool Mode Performance Data ................. 132
20.2 Heat Mode Performance Data ................. 134
21. Service Data ................................................... 135
21.1 Cool Mode Outdoor Air Temperature
Characteristic ........................................... 135
21.2 Heat Mode Outdoor Air Temperature
Characteristic ........................................... 139
21.3 Piping Length Correction Factor .............. 143
22. Exploded View and Replacement Parts
List .................................................................. 144
22.1 Indoor Unit ............................................... 144
22.2 Outdoor Unit ............................................ 148
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