4
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Components
Service manual
55
RXM20~71R(9) + ARXM25~71R(9) + FTXM20~71R + ATXM25~50R +
FVXM25~50A
Split New Perfera R32
ESIE20-11B – 2022.02
7
Install plugs or caps on the open pipe ends of the refrigerant piping to avoid
dirt or impurities from entering the piping.
8
To install the 4‑way valve body, see
To install the 4-way valve body
1
Remove the plugs or caps from the refrigerant piping and make sure they are
clean.
2
Remove the 4‑way valve coil from the spare part 4‑way valve body.
3
Install the 4‑way valve body in the correct location and correctly oriented.
Insert the pipe ends in the pipe expansions.
4
Supply nitrogen to the refrigerant circuit. The nitrogen pressure MUST NOT
exceed 0.02 MPa.
5
Wrap a wet rag around the 4‑way valve body and any other components near
the 4‑way valve and solder the 4‑way valve pipes to the refrigerant pipes.
a
b
a
c
A
A
Class 20~35 unit
a
4‑way valve pipe
b
4‑way valve
c
Putty
c
a
b
a
A
A
Class 42~71 unit
a
4‑way valve pipe
b
4‑way valve
c
Putty
CAUTION
Overheating the valve will damage or destroy it.
