Gree GMV-120WL/C-X, User Manual, Page: 21 / 44

DC Inverter Multi VRF System
16
(7) When connecting IDU with connection pipe, do not pull the big and small joints of IDU with
force in case the capillary tube or other tubes have cracks and cause leakage.
Pipe dimension Tightening torque
Φ 6.35mm 15~30(N·m)
Φ 9.52mm 35~40(N·m)
Φ 12.7mm 45~50(N·m)
Φ 15.9mm 60~65(N·m)
Fig. 16 Fig. 17
4.3.5 Outdoor Pipe Connection
Twist the flared nut on the connection pipe of outdoor valves. Twisting method is the same as for
indoor pipe connection.
During engineering installation, the connection pipe inside the unit must be wrapped by insulation
sleeve.
Below is the piping diagram of GMV-80WL/A-T, GMV-100WL/A-T, GMV-121WL/A-T,
GMV-80WL/C-T, GMV-100WL/C-T, GMV-121WL/C-T, GMV-141WL/C-T, GMV-120WL/C-T,
GMV-140WL/C-T, GMV-160WL/C-T, GMV-120WL/C-X, GMV-140WL/C-X and GMV-160WL/C-X.
According to customer requirement or space limit, outlet pipe can be installed from the front, right or
rear side.
Fig. 18