Daikin Perfera FVXM A Series - High Pressure Switch; Checking Procedures

3 | Components
Service manual
85
RXM20~71R + ARXM25~71R + FTXM20~71R + ATXM25~50R +
FVXM25~50A
Split New Perfera R32
ESIE20-11 – 2021.01
b
a
c
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? Action
Yes No further actions required.
No Return to "Checking procedures"[475]
of the expansion valve and continue
with the next procedure.
3.6 High pressure switch
3.6.1 Checking procedures
To perform an electrical check of 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 "3.14Plate work"[4151].
1 Recuperate the refrigerant from the refrigerant circuit, see "Repair
procedures"[4209].
2 Fill the refrigerant circuit with nitrogen until pressurized just below operating
pressure of the high pressure switch.