1. Precaution .................................................................................................................................................... 1
1.1 Safety Precaution .......................................................................................................................... 1
1.2 Warning ......................................................................................................................................... 1
2. Function ........................................................................................................................................................ 6
3. Dimension .................................................................................................................................................... 9
3.1 Indoor Units ................................................................................................................................... 9
3.2 Outdoor Units .............................................................................................................................. 12
4. Refrigerant Cycle Diagram ....................................................................................................................... 14
5. Wiring Diagram .......................................................................................................................................... 16
5.1 Indoor Units ................................................................................................................................. 16
5.2 Outdoor Units .............................................................................................................................. 21
6. Installation details ...................................................................................................................................... 29
6.2 Connecting the cables ................................................................................................................ 29
7. Operation characteristics ......................................................................................................................... 40
8. Electronic function .................................................................................................................................... 41
8.1 Abbreviation ................................................................................................................................ 41
8.2 Display function ........................................................................................................................... 41
8.3 Main Protection ........................................................................................................................... 42
9. Troubleshooting ......................................................................................................................................... 52
9.2 Diagnosis and Solution ............................................................................................................... 54
CONTENTS