Daikin Emura RXJ20A5V1B Service Manual page 97

To install the high pressure switch
RXJ20~50A + FTXJ-A(W)(S)(B)
Split Emura 3 R32
ESIE22-04B – 2022.08
a High pressure switch
b Faston connector
c High pressure switch pipe
6 Stop the nitrogen supply when the piping has cooled down.
7 Remove the high pressure switch.
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 a plug or cap on the refrigerant piping to avoid dirt or impurities from
entering the piping.
9 To install the high pressure switch, see
1 Remove the plug or cap from the refrigerant piping and make sure it is clean.
2 Install the high pressure switch in the correct location.
3 Supply nitrogen to the refrigerant circuit. The nitrogen pressure MUST NOT
exceed 0.02 MPa.
4 Wrap a wet rag around the high pressure switch and any other components
near the high pressure switch and solder the high pressure switch pipe to the
refrigerant pipe.
b
a
c
a High pressure switch
b Faston connector
c High pressure switch pipe
CAUTION
Overheating the pressure switch will damage or destroy it.
5 After soldering is done, stop the nitrogen supply after the component has
cooled‑down.
6 Connect the Faston connectors to the high pressure switch.
7 Install the compressor insulation, see
8 Perform a pressure test, see
9 Add refrigerant
4
procedures" [ 187].
"4.6.2 Repair
b
"4.2.2 Repair
"5.2.1 Checking
to the refrigerant
4 Components
|
4
procedures" [ 96].
4
procedures" [ 68].
4
procedures" [ 182].
circuit, see "5.2.2 Repair
Service manual
97