CONTENTS
1. Precaution .................................................................................................................................................... 3
1.1 Safety Precaution .......................................................................................................................... 3
1.2 Warning ......................................................................................................................................... 3
2. Function ........................................................................................................................................................ 6
3. Dimension .................................................................................................................................................... 7
3.1 Indoor Unit ..................................................................................................................................... 7
3.2 Outdoor Unit ................................................................................................................................. 11
4 .Refrigerant Cycle Diagram ....................................................................................................................... 15
5 .Installation Details ..................................................................................................................................... 16
5.1 Wrench torque sheet for installation ........................................................................................... 16
5.2 Connecting the cables ................................................................................................................ 16
5.3 Pipe length and the elevation ..................................................................................................... 17
5.4 Installation for the first time ......................................................................................................... 18
5.5 Adding the refrigerant after running the system for many years ................................................ 19
5.6 Re-installation while the indoor unit need to be repaired ........................................................... 20
5.7 Re-installation while the outdoor unit need to be repaired ......................................................... 21
6. Disassemble Guide.................................................................................................................................... 23
7. Operation Characteristics ......................................................................................................................... 29
8. Electronic function .................................................................................................................................... 30
8.1 Abbreviation ................................................................................................................................ 30
8.2 Display function ........................................................................................................................... 30
8.3 Main Protection ........................................................................................................................... 31
8.4 Operation Modes and Functions ................................................................................................. 32
8.5 Multi-function board instruction (This multi-function board is optional) ...................................... 39
9. Troubleshooting ......................................................................................................................................... 42
9.1 Indoor Unit Error Display ............................................................................................................. 44
9.2 Trouble shooting.......................................................................................................................... 45