R2 Series - Mitsubishi Electric PUHY-RP-Y(S)JM-B Data Book

SYSTEM DESIGN R2 SERIES
1. Electrical work.................................................................................................................................................. 242
1-1.General cautions ....................................................................................................................................... 242
1-2.Power supply for Indoor unit and Outdoor unit .......................................................................................... 243
1-3.Power cable specifications ........................................................................................................................ 247
1-4.Power supply examples............................................................................................................................. 248
2. M-NET control.................................................................................................................................................. 249
2-1.Transmission cable length limitation.......................................................................................................... 249
2-2.Transmission cable specifications ............................................................................................................. 250
2-3.System configuration restrictions............................................................................................................... 255
2-4.Address setting.......................................................................................................................................... 258
3. Piping Design................................................................................................................................................... 271
3-1.Piping Design ............................................................................................................................................ 271
3-2.Refrigerant charging calculation ................................................................................................................ 275
4. Outdoor Installation.......................................................................................................................................... 276
4-1.Requirement on installation site ................................................................................................................ 276
4-2.Spacing...................................................................................................................................................... 277
4-3.Piping direction .......................................................................................................................................... 279
4-4.Weather countermeasure .......................................................................................................................... 282
5. Caution for refrigerant leakage ........................................................................................................................ 283
5-1.Refrigerant property................................................................................................................................... 283
5-2.Confirm the Critical concentration and take countermeasure.................................................................... 283
SYSTEM DESIGN R2 SERIES 241