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DC Inverter Multi VRF System

(6) The bending angle of piping should not be too small; otherwise the piping might have

cracks. Please use a pipe bender to bend the pipe.

(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.

Fig. 13 Fig. 14

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-24WL/C-T(U), GMV-28WL/C-T(U). According to customer

requirement or space limit, outlet pipe can be installed from the front, right or rear side.

Fig.15

4.3.6 Installation of Y-type Branch

(1) Y-type Branch.

Fig. 16

(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

Pipe Diameter

Tightening Torque

6mm(1/4inch)

15-30N·m(11-22ft.-1b.)

9.5mm(3/8 inch)

35-40N·m(26-29ft.-1b.)

12.7mm(1/2 inch)

45-50N·m(33-37ft.-1b.)

16mm(5/8 inch)

60-65N·m(44-48ft.-1b.)

Gree GMV-24WL/C-T User Manual

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