
CONTENTS
1. Precaution......................................................................................................................................... 1
1.1 Safety Precaution.....................................................................................................................1
1.2 Warning....................................................................................................................................1
2. Function............................................................................................................................................ 6
3. Dimension......................................................................................................................................... 7
3.1 Indoor Unit................................................................................................................................7
3.2 Outdoor Unit.............................................................................................................................8
4. Refrigerant Cycle Diagram................................................................................................................ 9
5. Wiring Diagram ................................................................................................................................11
5.1 Indoor Unit.............................................................................................................................. 11
5.2 Outdoor Unit...........................................................................................................................12
6 Installation details.............................................................................................................................13
6.1 Wrench torque sheet for installation........................................................................................13
6.2 Connecting the cables............................................................................................................13
6.3 Pipe length and the elevation..................................................................................................14
6.4 Installation for the first time.....................................................................................................15
6.5 Adding the refrigerant after running the system for many years...............................................18
6.6 Re-installation while the indoor unit need to be repaired.........................................................19
6.7 Re-installation while the outdoor unit need to be repaired.......................................................21
7. Operation characteristics.................................................................................................................24
8. Electronic function...........................................................................................................................25
8.1 Abbreviation............................................................................................................................25
8.2 Display function......................................................................................................................25
8.3 Main Protection......................................................................................................................26
8.4 Operation Modes and Functions.............................................................................................27
9. Troubleshooting...............................................................................................................................34
9.1 Indoor Unit Error Display........................................................................................................34
9.2 Diagnosis and Solution...........................................................................................................35