Repair Procedures - Daikin Sky Air Advance RZA200D7Y1B Service Manual

3 | Components

3.6.2 Repair procedures

To remove the high pressure switch
To install the high pressure switch
Service manual
80
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
"4.2.2 Repair procedures" [
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
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
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
"3.6.2 Repair
4
142].
b b
"3.6.2 Repair
4
procedures" [ 80].
4
"3.12 Plate work" [ 111].
4
procedures" [ 80].
RZA200+250D7Y1B
Sky Air Advance-series
ESIE19-13A – 2020.05