Mitsubishi Electric CITY MULTI H Series User Manual (English)

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CITY MULTI

DATA U5

SYSTEM DESIGN H SERIES

1. Electrical work.................................................................................................................................................. 4 - 68

1-1.General cautions ....................................................................................................................................... 4 - 68

1-2.Power supply for Indoor unit and Outdoor unit .......................................................................................... 4 - 69

1-3.Power cable specifications ........................................................................................................................ 4 - 71

1-4.Power supply examples............................................................................................................................. 4 - 72

2. M-NET control.................................................................................................................................................. 4 - 74

2-1.Transmission cable length limitation.......................................................................................................... 4 - 74

2-2.Transmission cable specifications............................................................................................................. 4 - 75

2-3.System configuration restrictions............................................................................................................... 4 - 76

2-4.Address setting.......................................................................................................................................... 4 - 79

3. Piping Design................................................................................................................................................... 4 - 90

3-1.R410A Piping material............................................................................................................................... 4 - 90

3-2.Piping Design ............................................................................................................................................ 4 - 91

3-3.Refrigerant charging calculation................................................................................................................ 4 - 93

4. Outdoor Installation.......................................................................................................................................... 4 - 94

4-1.Requirement on installation site ................................................................................................................ 4 - 94

4-2.Spacing...................................................................................................................................................... 4 - 95

4-3.Piping direction.......................................................................................................................................... 4 - 97

4-4.Weather countermeasure.......................................................................................................................... 4 - 102

5. Caution for refrigerant leakage ........................................................................................................................ 4 - 103

5-1.Refrigerant property................................................................................................................................... 4 - 103

5-2.Confirm the Critical concentration and take countermeasure.................................................................... 4 - 103

4 - 67