Gree GMV-Y96WM/A-F(U) Owner's Manual page 17

Photovoltaic Multi VRF
4.3.3 Allowable pipe length and drop height among indoor and outdoor units
Y type branch joint is adopted to connect indoor and outdoor units. Connecting method is
shown in the figure below.
Remark: Equivalent length of one Y-type manifold is about 0.5m(1-3/4ft.).
L10: Length from the first branch to the farthest IDU;
L11: Length from the first branch to the nearest IDU;
Equivalent length of branch of IDU is 0.5m(1-3/4ft.).
.
R410A Refrigerant System
Total length (actual length) of fitting pipe
Length of farthest
fitting pipe m(ft.)
Difference between the pipe length from the first
branch of IDU to the farthest IDU and the pipe length
from the first branch of IDU to the nearest IDU
Fig.4.3.3
Actual length
Equivalent length
Allowable Value
m(ft.)
≤1000(3280-3/4) L1+L2+L3+L4+...+L9+a+b+...+i+j
≤165(541-1/4)
≤190(623-1/4)
≤40(131-1/4)
13
Unit: m(ft.)
Fitting Pipe
L1+L6+L7+L8+L9+j
L10-L11