DC Inverter Multi VRF System
15
Fig. 13 Fig. 14
4.3.5 Outdoor Pipe Connection
During engineering installation, the connection pipe inside the unit must be wrapped by
insulation sleeve.
（1） Pipe connection for GMV-H224WL/A-X,GMV-224WL/C-X:As shown in Fig.15 and
Fig.16, open the outermost soundproof cotton and place a fire barrier between
compressor and straight pipe. Use a soldering gun to unsolder straight pipe 1 and
straight pipe 2. Install connection pipe 1 and connection pipe 2 to the corresponding
position and then seal the apertures with welding rod. First weld the liquid side
connection pipe and then weld the gas side connection pipe. During welding, it’s
necessary to use wet gauze to wrap up the two cut-off valves. Make sure the flame
won’t burn the soundproof cotton or other components.
Fig. 15
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