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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 ............................................................. 12
5. Location of Controls and Components .......... 13
5.1 Indoor Unit .................................................. 13
5.2 Outdoor Unit ............................................... 13
5.3 Remote Control .......................................... 13
6. Dimensions ....................................................... 14
6.1 Indoor Unit & Remote Control .................... 14
6.2 Outdoor Unit ............................................... 15
7. Refrigeration Cycle Diagram ........................... 16
8. Block Diagram .................................................. 17
9. Wiring Connection Diagram ............................ 18
9.1 Indoor Unit .................................................. 18
9.2 Outdoor Unit ............................................... 19
10. Electronic Circuit Diagram .............................. 20
10.1 Indoor Unit .................................................. 20
10.2 Outdoor Unit ............................................... 21
11. Printed Circuit Board ....................................... 22
11.1 Indoor Unit .................................................. 22
11.2 Outdoor Unit ............................................... 24
12. Installation Instruction ..................................... 25
12.1 Select the Best Location ............................. 25
12.2 Indoor Unit .................................................. 26
12.3 Outdoor Unit ............................................... 30
13. Installation and Servicing Air Conditioner
using R32 .......................................................... 35
13.1 About R32 Refrigerant ................................ 35
13.2 Characteristics of R32 Refrigerant ............. 35
13.3 Refrigerant piping installation • Tools used
in services ................................................... 37
13.4 New installation, Relocation, Repairing of
Refrigerant Cycle System The
Procedures ................................................. 41
13.5 Piping installation of R32 ............................ 42
13.6 Installation, Relocation, and Service .......... 43
13.7 Repairing of refrigerant cycle / Brazing
point ............................................................ 47
13.8 <Reference> Analysis method for no error
code, no cooling / no warming .................... 53
14. Operation Control ............................................. 55
14.1 Basic Function ............................................ 55
14.2 Indoor Fan Motor Operation ....................... 56
14.3 Outdoor Fan Motor Operation .................... 57
14.4 Airflow Direction .......................................... 57
14.5 Timer Control .............................................. 59
14.6 Random Auto Restart Control .................... 59
14.7 Indication Panel .......................................... 59
14.8 Quiet Operation (Cooling Mode/Cooling
Area of Dry Mode) ......................................60
14.9 Quiet Operation (Heating) ..........................60
14.10 Powerful Mode Operation ...........................60
14.11 +8/15°C Heat Operation .............................61
15. Protection Control ............................................62
15.1 Protection Control for All Operations ..........62
15.2 Protection Control for Cooling & Soft Dry
Operation ....................................................64
15.3 Protection Control for Heating
Operation ....................................................65
16. Servicing Mode .................................................66
16.1 Auto OFF/ON Button ..................................66
16.2 Heat Only Operation ...................................67
16.3 Remote Control Button ...............................68
17. Troubleshooting Guide ....................................71
17.1 Refrigeration Cycle System ........................71
17.2 Relationship Between the Condition of the
Air Conditioner and Pressure and Electric
Current ........................................................72
17.3 Breakdown Self Diagnosis Function ...........73
17.4 Error Codes Table ......................................74
17.5 Self-diagnosis Method ................................76
18. Disassembly and Assembly Instructions ... 104
18.1 Indoor Electronic Controllers, Cross Flow
Fan and Indoor Fan Motor Removal
Procedures .............................................. 104
18.2 Outdoor Electronic Controller Removal
Procedure ................................................ 108
19. Technical Data ............................................... 109
19.1 Cool Mode Performance Data ................. 109
19.2 Heat Mode Performance Data ................. 110
20. Service Data ................................................... 111
20.1 Cool Mode Outdoor Air Temperature
Characteristic ........................................... 111
20.2 Heat Mode Outdoor Air Temperature
Characteristic ........................................... 113
20.3 Piping Length Correction Factor .............. 115
21. Exploded View and Replacement Parts
List .................................................................. 116
21.1 Indoor Unit ............................................... 116
21.2 Outdoor Unit ............................................ 118
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