High Pressure Switch; Checking Procedures - Daikin Sensira Series Service Manual

2.4 High pressure switch

2.4.1 Checking procedures

To perform an electrical check of the high pressure switch
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
a c b
a Expansion valve motor
b Metal bracket
c Nipple
d Notch
e Expanion valve body
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" [ 133].
2 Fill the refrigerant circuit with nitrogen until pressurized just below operating
pressure of the high pressure switch.
c d e
Action
No further actions required.
Return to
procedures" [
valve and continue with the next
procedure.
"2.10 Plate
2 Components
|
"2.3.1 Checking
4
53] of the expansion
4
work" [ 101].
"3.2.2 Repair
Service manual
61