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English
7.3.3. Piping between refrigerant branch kit and BP unit: F
Pipe size for direct connection on BP unit must be based on the total
capacity of the connected indoor units (only in case Mini-split indoor
units are connected).
Total capacity index of
connected indoor units
Gas pipe
Liquid pipe
< 24
1/2 in. (12.7 mm)
1/4 in. (6.4 mm)
24 ≤
×
< 57
5/8 in. (15.9 mm)
3/8 in. (9.5 mm)
> 57
3/4 in. (19.1 mm)
Example:
Downstream capacity for F = capacity index of unit 4 + capacity index
of unit 5
7.3.4. Piping between BP unit and Mini-split indoor unit: G
Only in case Mini-split indoor units are connected.
Indoor unit capacity index
Gas pipe
Liquid pipe
07, 09, 12
3/8 in. (9.5 mm)
1/4 in. (6.4 mm)
15
1/2 in. (12.7 mm)
7.3.5. Piping between refrigerant branch kit and indoor unit: E
Pipe size for direct connection to indoor unit must be the same as the
connection size of the VRV indoor unit.
Indoor unit capacity
index
Piping outer diameter size
Gas pipe
Liquid pipe
05, 07, 09, 12, 15, 18
1/2 in. (12.7 mm)
1/4 in. (6.4 mm)
24, 30, 36, 42, 48, 54
5/8 in. (15.9 mm)
3/8 in. (9.5 mm)
72
3.4 in. (19.1 mm)
96
7/8 in. (22.2 mm)
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01_EN_Main_VRV6_HP_IM.indd 11
2022/11/17 16:07:08
2022/11/17 16:07:08
