1
CONTENTS
1. General Information ................................................................................................................................................. 1
1.1 Feature ............................................................................................................................................................... 1
1.2 Products lineup .................................................................................................................................................... 3
2. Specication ............................................................................................................................................................ 5
3. Dimension.............................................................................................................................................................. 39
4. Piping diagram....................................................................................................................................................... 41
5. Wiring diagram ...................................................................................................................................................... 44
6. Capacity calculation due to capacity modication coefcient ................................................................................ 45
6.1 Capacity compensation value only for cooling ................................................................................................. 45
6.2 Capacity compensation value only for heating .................................................................................................. 51
6.3 Capacity compensation value for cooling and heating ...................................................................................... 53
7. Operation range..................................................................................................................................................... 54
8. Noise level ............................................................................................................................................................. 55
9. Installation ............................................................................................................................................................. 58
9.1 Safety ................................................................................................................................................................ 58
9.2 Before installation .............................................................................................................................................. 63
9.3 Installation location ............................................................................................................................................ 65
9.4 Unit transport and installation ............................................................................................................................ 67
9.5 Construction of refrigerant pipe ......................................................................................................................... 68
9.6 Discharge pipe works ........................................................................................................................................ 81
10. Branch pipe dimensions ...................................................................................................................................... 86
11. Gather pipe dimension ......................................................................................................................................... 88
12. Trial operation ...................................................................................................................................................... 89
12.1 Conrmation by electrifying ............................................................................................................................. 89
12.2 Rated operation .............................................................................................................................................. 89
12.3 Trial operation conrmation ............................................................................................................................. 92
13. Outdoor control board photo................................................................................................................................ 98
14. Outdoor PCB dip switch setting ......................................................................................................................... 102
15. Outdoor system control function ........................................................................................................................ 112
15.1 Start Control .................................................................................................................................................. 112
15.2 Target pressure control .................................................................................................................................. 114
15.3 Fan control .................................................................................................................................................... 115
15.4 Pressure protection control............................................................................................................................ 116
15.5 Overheating protection control ...................................................................................................................... 115
15.6 Current protection control .............................................................................................................................. 117
16. Failure code ...................................................................................................................................................... 118
17. Troubleshooting ................................................................................................................................................. 125
APPENDIX Sensor Resistance Table.......................................................................................................................175