Daikin Sensira Series, Service Manual

Page: 61 / 172

2 | Components
Service manual
61
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
b c c d e a
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? Action
Yes No further actions required.
No Return to "2.3.1 Checking
procedures" [
4
53] of the expansion
valve and continue with the next
procedure.
2.4 High pressure switch
2.4.1 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 "2.10 Plate work" [ 4 101].
1 Recuperate the refrigerant from the refrigerant circuit, see "3.2.2 Repair
procedures" [
4
133].
2 Fill the refrigerant circuit with nitrogen until pressurized just below operating
pressure of the high pressure switch.