Daikin EBLA04E V Series Service Manual page 167

To install the expansion valve body
EBLA04~08E + EDLA04~08E
Daikin Altherma 3 M
ESIE22-09 – 2022.05
1 Remove the expansion valve coil, see
2 Remove the putty. Keep for re-use.
a
a Putty
b Expansion valve pipe
c Expansion valve body
3 Using a valve magnet, open the expansion valve.
4 Supply nitrogen to the refrigerant circuit. The nitrogen pressure MUST NOT
exceed 0.02 MPa.
5 Wrap a wet rag around the components near the expansion valve pipes. Heat
the brazing points of the expansion valve pipes using an oxygen acetylene
torch and remove the expansion valve pipes from the refrigerant pipes using
pliers.
6 Stop the nitrogen supply when the piping has cooled down.
7 Remove the expansion valve body.
INFORMATION
It is ALSO possible to cut the component pipe(s) using a pipe cutter. Make sure to
remove the remaining component pipe end(s) from the refrigerant pipes by heating
the brazing point(s) of the component pipe(s) using an oxygen acetylene torch.
8 Install plugs or caps on the open pipe ends of the refrigerant piping to avoid
dirt or impurities from entering the piping.
9 To install the expansion valve body, see
1 Remove the plugs or caps from the refrigerant piping and make sure they are
clean.
2 Remove the expansion valve coil from the spare part expansion valve body.
3 Install the expansion valve body in the correct location and correctly oriented.
Insert the pipe ends in the pipe expansions.
4 Open the expansion valve using a valve magnet.
5 Supply nitrogen to the refrigerant circuit. The nitrogen pressure MUST NOT
exceed 0.02 MPa.
6 Wrap a wet rag around the expansion valve body and any other components
near the expansion valve and solder the expansion valve pipes to the
refrigerant pipes.
"4.9.2 Repair procedures" [
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"4.9.2 Repair procedures" [
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Service manual
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