High Pressure Switch; Checking Procedures - Daikin Perfera RXM R Series Service Manual

3.6 High pressure switch

3.6.1 Checking procedures

To perform an electrical check of the high pressure switch
RXM20~71R + ARXM25~71R + FTXM20~71R + ATXM25~50R +
FVXM25~50A
Split New Perfera R32
ESIE20-11 – 2021.01
a Expansion valve motor
b Pipe retention clip
c Pipe
2 Route the expansion valve motor harness towards the appropriate PCB.
3 Connect the expansion valve motor connector to the appropriate PCB.
WARNING
When reconnecting a connector to the PCB, make sure to connect it on the correct
location and do NOT apply force, as this may damage the connector or connector
pins of the PCB.
4 Fix the expansion valve motor harness using new tie straps.
5 Install the insulation cap on the expansion valve motor (if applicable).
Is the problem solved?
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
1 Recuperate the refrigerant from the refrigerant circuit, see
4
procedures" [ 209].
2 Fill the refrigerant circuit with nitrogen until pressurized just below operating
pressure of the high pressure switch.
a
b
c
Action
No further actions required.
Return to
of the expansion valve and continue
with the next procedure.
3 Components
|
"Checking procedures" [
4
"3.14 Plate work" [ 151].
Service manual
4
75]
"Repair
85