Gree GMV-S280W/A-X

GMV5 Home DC Inverter Multi VRF Units
151
Piping size between branch pipe A and C, branch pipe C and ODU:
Total number of connected
hydro box: X
Dimension of pipe between branch A and C, dimension of pipe between
branch C and outdoor unit
Gas pipe
Liquid pipe
High pressure gas pipe
X=1
Φ15.9
Φ9.52
Φ12.7
X=2
Φ22.2
Φ9.52
Φ15.9
Piping size between IDU branch pipes:
Total rated capacity of downstream
IDUs X (kW)
Piping size between IDU branch pipes
Gas pipe
Liquid pipe
X≤5.6
Φ12.7
Φ6.35
5.6＜X≤14.2
Φ15.9
Φ9.52
14.2＜X≤22.0
Φ19.05
Φ9.52
22.0＜X≤30.0
Φ22.2
Φ9.52
30.0＜X≤45.0
Φ28.6
Φ12.7
45.0＜X≤67.0
Φ28.6
Φ15.9
67.0＜X≤95.0
Φ34.9
Φ15.9
95.0＜X≤135.0
Φ41.3
Φ19.05
135.0＜X
Φ44.5
Φ22.2
(4) The piping dimension between the branch to its connected terminal is the same as the
piping dimension of terminal (if the distance from the first branch to a certain IDU exceeds
30m, the diameter of piping at gas side from the first branch to this IDU should be bigger.
Piping size of IDU
IDU capacity X (kW)
Piping size between IDU branch to IDU
Gas pipe
Liquid pipe
X≤2.8
Φ9.52
Φ6.35
2.8＜X≤5.0
Φ12.7
Φ6.35
5.0＜X≤14.0
Φ15.9
Φ9.52
14.0＜X≤16.0
Φ19.05
Φ9.52
16.0＜X≤28.0
Φ22.2
Φ9.52
Piping size of hydro box
Terminal
Piping size between hydro box/adapter and its branch pipe
Gas pipe
Liquid pipe
High pressure gas pipe
Hydro box
Φ15.9
Φ9.52
Φ12.7