Repair Procedures - Daikin Sensira Series Service Manual

2.2.2 Repair procedures

To remove the compressor
FTXF20~71A + FTXF20~25B + FTXF20~42C + ATXF20~71A + ATXF20~42C
+ RXF20~71A + RXF20~60B + RXF20~42C + ARXF20~71A + ARXF20~42C
Split Sensira R32
ESIE18-12E – 2021.02
4 Set the Megger voltage to 500 V DC or 1000 V DC.
5 Measure the insulation resistance between the following terminals. The
measured insulation resistance MUST be >3 MΩ.
▪ U–ground,
▪ V–ground,
▪ W–ground.
Compressor insulation 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: Remove the compressor insulation.
Prerequisite: Recuperate the refrigerant from the refrigerant circuit, see
"3.2.2 Repair procedures" [
1 If needed, remove any parts to create more space for the removal of the
compressor.
DANGER: RISK OF ELECTROCUTION
Wait for at least 10 minutes after the circuit breaker has been turned OFF, to be sure
the rectifier voltage is below 10 V DC before proceeding.
2 Remove the cover of the compressor wire terminals.
a Compressor wire terminals cover
3 Disconnect the Faston connectors from the compressor wire terminals U, V
and W.
Action
Compressor is OK. Return to
troubleshooting of the specific error
and continue with the next procedure.
Replace the compressor, see
"2.2.2 Repair
4
133].
a
2 Components
|
4
procedures" [ 49].
4
"2.10 Plate work" [ 101].
Service manual
49