Gree Ultra Heat GMV Multi VRF Series Owner's Manual page 22

Ultra Heat GMV Multi VRF_Heat Recovery Serial
4.3.5.2 Connection sketch map of multi-module system
4.3.5.3 Pipe selection between outdoor unit and the first indoor branch ("L")
For single module, L pipe between the basic outdoor unit and the first indoor branch:
Basic module
GMV-VQ72W/A-F(U)
GMV-VQ96W/A-F(U)
For multi-module, L pipe between the terminal outdoor branch and the first indoor branch:
Basic module
GMV-VQ192WM/A-F(U)
4.3.5.4 ODU pipe size selection for multi-module system
Pipe size between module and outdoor branch "M1, M2":
Basic module
GMV-VQ72W/A-F(U)
GMV-VQ96W/A-F(U)
Selection of branch "Y1" connecting to outdoor modules:
Fig.21
Pipe between outdoor unit and the first indoor branch
Low pressure gas pipe
mm(inch)
Φ28.6(1-1/8)
Φ28.6(1-1/8)
Pipe between outdoor unit and the first indoor branch
Low pressure gas pipe
mm(inch)
Φ31.8(1-1/4)
Pipe between outdoor unit and the first indoor branch
Low pressure gas pipe
mm(inch)
Φ28.6(1-1/8)
Φ28.6(1-1/8)
17
Liquid pipe mm(inch)
Φ12.7(1/2)
Φ12.7(1/2)
Liquid pipe mm(inch)
Φ15.9(5/8)
Liquid pipe mm(inch)
Φ12.7(1/2)
Φ12.7(1/2)
High pressure gas pipe
mm(inch)
Φ19.05(3/4)
Φ19.05(3/4)
High pressure gas pipe
mm(inch)
Φ28.6(1-1/8)
High pressure gas pipe
mm(inch)
Φ19.05(3/4)
Φ19.05(3/4)