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CONTENTS

1. Precaution .................................................................................................................................................... 1

1.1 Safety Precaution .......................................................................................................................... 1

1.2 Warning ......................................................................................................................................... 1

2 Information servicing ................................................................................................................................... 3

3. Model list ...................................................................................................................................................... 8

4. Dimension .................................................................................................................................................... 9

4.1 Indoor Unit ..................................................................................................................................... 9

4.2 Outdoor Unit ................................................................................................................................ 12

5. Refrigerant Cycle Diagram ....................................................................................................................... 16

6 Installation Details ...................................................................................................................................... 17

6.1 Wrench torque sheet for installation ........................................................................................... 17

6.2 Connecting the cables ................................................................................................................ 17

6.3 Pipe length and the elevation ..................................................................................................... 18

6.4 Installation for the first time ......................................................................................................... 19

6.5 Adding the refrigerant after running the system for many years ................................................ 20

6.6 Re-installation while the indoor unit need to be repaired ........................................................... 20

6.7 Re-installation while the outdoor unit need to be repaired ......................................................... 21

7. Disassemble Guide.................................................................................................................................... 23

8. Wiring Diagram .......................................................................................................................................... 29

8.1 Indoor Unit ................................................................................................................................... 29

8.2 Outdoor Unit ................................................................................................................................ 30

9. Operation Characteristics ......................................................................................................................... 32

10. Electronic function .................................................................................................................................. 33

10.1 Abbreviation .............................................................................................................................. 33

10.2 Display function ......................................................................................................................... 33

10.3 Main Protection ......................................................................................................................... 34

10.4 Operation Modes and Functions ............................................................................................... 35

10.5 Multi-function board instruction (This multi-function board is optional) .................................... 43

11. Troubleshooting ....................................................................................................................................... 46

11.1 Indoor Unit Error Display ........................................................................................................... 47

11.2 Trouble shooting ........................................................................................................................ 48

Caution: Risk of fire/flammable materials