Daikin Perfera RXM R Series Service Manual page 47

To install the 4-way valve body
RXM20~71R + ARXM25~71R + FTXM20~71R + ATXM25~50R +
FVXM25~50A
Split New Perfera R32
ESIE20-11 – 2021.01
1 Install the 4‑way valve in the correct location.
INFORMATION
If any refrigerant pipes were cut during removal of the 4‑way valve body, ALWAYS
install new pipes.
2 Supply nitrogen to the refrigerant circuit. The nitrogen pressure MUST NOT
exceed 0.02 MPa.
3 Wrap a wet rag around the 4‑way valve and solder the 4‑way valve pipes to
the refrigerant pipes.
CAUTION
Overheating the valve will damage or destroy it.
4 After soldering is done, stop the nitrogen supply after the component has
cooled‑down.
A
A Class 20~35 unit
a 4‑way valve pipe
b 4‑way valve
c Putty
A
A Class 42~71 unit
a 4‑way valve pipe
b 4‑way valve
c Putty
b a
c a
c a b a
3 Components
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Service manual
47