CITY MULTI
SYSTEM DESIGN S SERIES
1. Electrical work.................................................................................................................................................. 4 - 4
1-1.General cautions ....................................................................................................................................... 4 - 4
1-2.Power supply for Indoor unit and Outdoor unit .......................................................................................... 4 - 5
1-3.Power cable specifications ........................................................................................................................ 4 - 7
1-4.Power supply examples............................................................................................................................. 4 - 8
2. M-NET control.................................................................................................................................................. 4 - 9
2-1.Transmission cable length limitation.......................................................................................................... 4 - 9
2-4.Address setting.......................................................................................................................................... 4 - 14
3. Piping Design................................................................................................................................................... 4 - 20
3-1.R410A Piping material............................................................................................................................... 4 - 20
3-2.Piping Design ............................................................................................................................................ 4 - 21
4. Outdoor Installation.......................................................................................................................................... 4 - 25
4-2.Spacing...................................................................................................................................................... 4 - 27
4-3.Piping direction .......................................................................................................................................... 4 - 28
5. Installation information..................................................................................................................................... 4 - 29
5-1.General precautions .................................................................................................................................. 4 - 29
5-2.Precautions for Indoor unit ........................................................................................................................ 4 - 30
6-1.Refrigerant property................................................................................................................................... 4 - 33
SYSTEM DESIGN S SERIES
C7-R Rev.
4 - 3