6
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.
4. Connect the threaded connector.
Bottom piping
Top piping
5. If a low-temperature component is configured, connect the pipe to the
low-temperature component.
Pipe connection with a low-
temperature component (top piping)
Pipe connection with a low-
temperature component (bottom
piping)
Indoor
unit
Outdoor
unit
Gas pipe
Liquid
pipe
C
he
ck
v
al
ve
Indoor
unit
Outdoor
unit
Gas pipe
Liquid
pipe
Che
ck
v
al
ve