Repair Procedures - Daikin Perfera RXM R Series Service Manual

3.6.2 Repair procedures

To remove the high pressure switch
To install the high pressure switch
RXM20~71R + ARXM25~71R + FTXM20~71R + ATXM25~50R +
FVXM25~50A
Split New Perfera R32
ESIE20-11 – 2021.01
High pressure switch connector
measurements are correct?
Yes
No
Prerequisite: Stop the unit operation via the user interface.
Prerequisite: Turn OFF the respective circuit breaker.
Prerequisite: Remove the required plate work, see
Prerequisite: Recuperate the refrigerant from the refrigerant circuit, see
4
procedures" [ 209].
1 If needed, remove any parts to create more space for the removal of the high
pressure switch.
2 Remove the compressor insulation, see
3 Disconnect the Faston connectors from the high pressure switch.
b
a
c
a High pressure switch
b Faston connector
c High pressure switch pipe
4 Cut the high pressure switch pipe using a pipe cutter.
5 Remove the high pressure switch from the unit.
6 Supply nitrogen to the refrigerant circuit. The nitrogen pressure MUST NOT
exceed 0.02 MPa.
7 Heat the end of the high pressure switch pipe using an oxygen acetylene torch
and remove the high pressure switch pipe end.
8 Stop the nitrogen supply when the piping has cooled down.
9 To install the high pressure switch, see
1 Install the high pressure switch in the correct location.
Then
High pressure switch is OK. Return to
the troubleshooting of the specific error
and continue with the next procedure.
Replace the high pressure switch, see
"Repair procedures" [
"Repair
b
"Repair
3 Components
|
4
87].
"3.14 Plate work" [ 4 151].
4
procedures" [ 55].
4
procedures" [ 87].
Service manual
"Repair
87