Service manual
CONTENTS
1. Precaution ................................................................................................................................................. 1
1.1 Safety Precaution ........................................................................................................................ 2
1.2 Warning ....................................................................................................................................... 3
2. Part Names And Functions ...................................................................................................................... 4
2.1 Model Names of Indoor/Outdoor units ........................................................................................ 4
2.2 Part names of Indoor/Outdoor units ............................................................................................ 5
3. Dimension ................................................................................................................................................. 6
3.1 Indoor Unit ................................................................................................................................... 6
3.2 Outdoor Unit .............................................................................................................................. 10
4. Refrigerant Cycle Diagram ...................................................................................................................... 11
5. Wiring Diagram ....................................................................................................................................... 13
5.1 Indoor Unit ................................................................................................................................. 13
5.2 Outdoor Unit .............................................................................................................................. 20
6 Installation Details ................................................................................................................................... 35
6.1 Wrench torque sheet for installation .......................................................................................... 35
6.2 Connecting the cables ............................................................................................................... 35
6.3 Pipe length and the elevation .................................................................................................... 35
6.4 Installation for the first time ....................................................................................................... 37
6.5 Adding the refrigerant after running the system for many years .. Error! Bookmark not defined.
6.6 Re-installation while the indoor unit need to be repaired ............. Error! Bookmark not defined.
6.7 Re-installation while the outdoor unit need to be repaired ........................................................ 40
7. Operation Characteristics ...................................................................................................................... 41
8. Electronic Function ................................................................................................................................ 42
8.1 Abbreviation .............................................................................................................................. 42
8.2 Display function ......................................................................................................................... 42
8.3 Main Protection ......................................................................................................................... 43
8.4 Operation Modes and Functions ............................................................................................... 44
9. Troubleshooting ...................................................................................................................................... 52
9.1 Indoor Unit Error Display ........................................................................................................... 53
9.2 Outdoor unit error display .......................................................................................................... 55
9.3 Diagnosis and Solution ............................................................................................................. 63
10. Exploded View ...................................................................................................................................... 83
10.1 Indoor unit ................................................................................. Error! Bookmark not defined.
10.2 Outdoor unit .............................................................................. Error! Bookmark not defined.
11 Disassembly Instructions ...................................................................................................................... 84
11.1 Indoor unit ............................................................................................................................... 84
11.2 Outdoor unit ............................................................................................................................. 88