Piping Work Requirements - Gree GMV-Y96WM/A-F(U) Owner's Manual

3.3 Piping Work Requirements

There should be no fall among outdoor modules. Refer to the table below for piping work
requirements.
Outer Diameter mm(in.)
Φ6.35(1/4)
Φ9.52(3/8)
Φ12.7(1/2)
Φ15.9(5/8)
Φ19.05(3/4)
Φ22.2(7/8)
Φ28.6(1-1/8)
Φ34.9(1-3/8)
Φ41.3(1-5/8)
4 Installation Instruction
4.1 ODU Foundation
The concrete foundation of the ODU must be strong enough. Ensure that the drainage is
smooth and that the ground drainage or floor drainage is not affected.
Requirements on the concrete foundation are as follows:
A. The concrete foundation must be flat and have enough rigidity and strength to undertake
the unit's weight during running. The height of the foundation is 200 mm to 300 mm,
which is determined based on the size of the unit.
B. Build a drainage ditch around the foundation to discharge the condensate water.
C. If the air conditioner is installed on the roof, check the intensity of the building and take
waterproof measures.
D. If a u-steel foundation is adopted, the structure must be designed with sufficient rigidity
and strength.
R410A Refrigerant System
Wall Thickness mm(in.)
≥0.8(1/32)
≥0.8(1/32)
≥0.8(1/32)
≥1.0(3/76)
≥1.0(3/76)
≥1.2(1/21)
≥1.2(1/21)
≥1.3(2/39)
≥1.5(1/17)
Fig. 4.1
10
Photovoltaic Multi VRF
Type
O
O
O
O
1/2H
1/2H
1/2H
1/2H
1/2H