Gree GMV-Y72WM/C-F Owner's Manual page 22

(4) If the length between an IDU and its nearest branch is above 10m(32 -4/5ft.), then
increase the size of the liquid pipe of IDU (only for the pipe size that is≤6.35mm(1/4in.).
4.2.4 Connection Pipe among Outdoor Modules
NOTICE! When the distance between outdoor units exceeds 2m (6-1/2ft.), U-type oil trap
should be added at low-pressure gas pipe. A+B≤10m (32-7/8ft.).
Photovoltaic Direct-driven Inverter VRF
Fig.4.2.5
Fig.4.2.6
18
Unit: m(ft.)