Gree GMV-12WP/A-T, Owner'S Manual, Page: 18 / 35

DC Inverter Multi VRF System
14
Fig. 22 Fig. 23
4.5.5 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-12WP/A-T(U). According to customer requirement or space
limit, outlet pipe can be installed from the front, right or rear side.
Fig.24
4.5.6 Installation of Y-type Branch
(1) Y-type Branch.
Fig. 25
(2) Y-type branch has several pipe sections with different dimension, which facilitates to match
with various copper pipes. Use pipe cutter to cut in the middle of the pipe section that is of
proper dimension and remove burrs as well. See Fig.26.
(3) Y-type branch must be installed vertically or horizontally.
Pipe diameter Tightening torque
Φ6.35mm(1/4 inch) 15~30(N·m)
Φ9.52mm(3/8 inch) 35~40(N·m)
Φ12.7mm(1/2 inch) 45~50(N·m)
Φ15.9mm(5/8 inch) 60~65(N·m)