Huawei FusionModule 500 Quick Manual page 7

5
Connecting Pipes
Lay out pipes based on site requirements and the following principles:
•
The length of a pipe should be as short as possible. The recommended length is within 10 m.
Avoid unnecessary turnings, lifting, and falling.
• Minimize the height difference between the indoor and outdoor units.
•
Minimize the number of bends for pipes.
• Release nitrogen from the indoor unit before connecting it.
• Prepare copper pipes for connecting indoor and outdoor units. Ensure that the copper pipes
are clean, free from impurities and moisture.
• If a copper pipe needs to be routed through the wall, seal both ends of the copper pipe
before routing it through the wall.
•
After a pipe is connected, charge dry nitrogen, test leakage, and vacuumize the pipe.
1. Obtain tools.
2. Drill holes in the wall.
3. Install the refrigerant pipe and
check whether the pipe thread
is sealed for protection.
5. If a low-temperature component is configured, connect the pipe to the
low-temperature component.
Indoor
unit
Pipe connection with a low-
temperature component (top piping)
4. Connect the threaded connector.
Outdoor
Gas pipe
unit
Liquid
pipe
Top piping
Gas pipe
Indoor
unit
Pipe connection with a low-
temperature component (bottom
6
Bottom piping
Outdoor
unit
Liquid
pipe
piping)