Mitsubishi Electric PURY-WP-YJM-A Data Book page 174

HYBRID CITY MULTI
SYSTEM DESIGN
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 - 6
1-4.Power supply examples............................................................................................................................. 4 - 7
2. M-NET control.................................................................................................................................................. 4 - 8
2-1.Transmission cable length limitation.......................................................................................................... 4 - 8
2-2.Transmission cable specifications ............................................................................................................. 4 - 9
2-3.System configuration restrictions............................................................................................................... 4 - 10
2-4.Address setting.......................................................................................................................................... 4 - 13
3. Piping Design................................................................................................................................................... 4 - 26
3-1.R410A Piping material............................................................................................................................... 4 - 26
3-2.Piping Design ............................................................................................................................................ 4 - 27
3-3.Refrigerant charging calculation ................................................................................................................ 4 - 32
3-4.Water piping .............................................................................................................................................. 4 - 33
4. Outdoor Installation.......................................................................................................................................... 4 - 35
4-1.Requirement on installation site ................................................................................................................ 4 - 35
4-2.Spacing...................................................................................................................................................... 4 - 36
4-3.Piping direction .......................................................................................................................................... 4 - 38
4-4.Weather countermeasure .......................................................................................................................... 4 - 41
5. Test run............................................................................................................................................................ 4 - 42
5-1.Instructions for debris removal operation .................................................................................................. 4 - 42
5-2.Instructions for the air vent operation ........................................................................................................ 4 - 43
5-3.Instructions for the water pump replacement ............................................................................................ 4 - 44
6. Installation information..................................................................................................................................... 4 - 45
6-1.General precautions .................................................................................................................................. 4 - 45
6-2.Precautions for Indoor unit ........................................................................................................................ 4 - 46
6-3.Precautions for Fresh air intake type indoor unit ....................................................................................... 4 - 47
6-4.Precautions for Outdoor unit/Heat source unit .......................................................................................... 4 - 47
6-5.Precautions for Control-related items ........................................................................................................ 4 - 48
SYSTEM DESIGN 4 - 3