Gree GMV-72WM/B-U Owner's Manual page 21

Total capacity of upstream modules
Q(Btu/h)
144000
168000
192000
216000
240000
4.3.5.4 Fitting pipe between the first manifold from indoor unit and the end manifold from outdoor
unit
Single module unit
Basic Module
GMV-72WM/B-U(U)
GMV-96WM/B-U(U)
GMV-120WM/B-U(U)
For multiple modules, the piping from ODU to the first branch of IDU is based on the total rated
capacity of outdoor modules.
Pipe size between manifolds
Gas pipe size mm(inch)
Φ28.6(1-1/8)
Φ28.6(1-1/8)
Φ28.6(1-1/8)
Φ28.6(1-1/8)
Ф34.9(1-3/8)
Fig.4.3.10
Pipe between ODU and the first branch of IDU
Gas Pipe mm(inch)
Φ19.05(3/4)
Φ22.2(7/8)
Φ28.6(1-1/8)
Fig.4.3.11
17
GMV DC Inverter VRF
Liquid pipe size mm(inch)
Φ12.7(1/2)
Φ15.9(5/8)
Φ15.9(5/8)
Φ15.9(5/8)
Φ15.9(5/8)
Liquid Pipe mm(inch)
Φ9.52(3/8)
Φ9.52(3/8)
Φ12.7(1/2)