Daikin Split Comfora R32, Руководство по обслуживанию

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2 | Components
Service manual
64
ATXP20~35 + FTXP20~71 + ARXP20~35 + RXP20~71
Split Comfora R32
ESIE18-01C – 2020.07
2.4.2 Repair procedures
To remove the high pressure switch
Prerequisite: Stop the unit operation via the user interface.
Prerequisite: Turn OFF the respective circuit breaker.
Prerequisite: Remove the required plate work, see "2.10 Plate work" [
4
92].
Prerequisite: Recuperate the refrigerant from the refrigerant circuit, see
"3.2.2 Repair procedures" [
4
127].
1 If needed, remove any parts to create more space for the removal of the high
pressure switch.
2 Disconnect the Faston connectors from the high pressure switch.
a
c
b b
a High pressure switch
b Faston connector
c High pressure switch pipe
3 Cut the high pressure switch pipe using a pipe cutter.
4 Remove the high pressure switch from the unit.
5 Supply nitrogen to the refrigerant circuit. The nitrogen pressure MUST NOT
exceed 0.02 MPa.
6 Heat the end of the high pressure switch pipe using an oxygen acetylene torch
and remove the high pressure switch pipe end.
7 Stop the nitrogen supply when the piping has cooled down.
8 To install the high pressure switch, see "2.4.2 Repair procedures" [
4
64].
To install the high pressure switch
1 Install the high pressure switch in the correct location.
2 Supply nitrogen to the refrigerant circuit. The nitrogen pressure MUST NOT
exceed 0.02 MPa.
3 Wrap a wet rag around the high pressure switch and solder the high pressure
switch pipe to the high pressure switch.