Daikin Sky Air Advance RZA200D7Y1B Service Manual page 72

3 | Components
To install the expansion valve body
Service manual
72
a Expansion valve body
b Expansion valve pipe
3 Remove the expansion valve body.
4 Supply nitrogen to the refrigerant circuit. The nitrogen pressure MUST NOT
exceed 0.02 MPa.
5 Heat the ends of the expansion valve pipes using an oxygen acetylene torch
and remove the expansion valve pipe ends.
6 Stop the nitrogen supply when the piping has cooled down.
7 To install the expansion valve body, see
1 Install the expansion valve body in the correct location and correctly oriented.
2 Supply nitrogen to the refrigerant circuit. The nitrogen pressure MUST NOT
exceed 0.02 MPa.
3 Wrap a wet rag around the expansion valve body and solder the refrigerant
pipes to the expansion valve body.
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 b
"3.4.2 Repair procedures" [
4
70].
RZA200+250D7Y1B
Sky Air Advance-series
ESIE19-13A – 2020.05