Other Thermistors - Daikin Comfora XP Series Service Manual

3.14.2 Other thermistors

Checking procedures
To perform an electrical check of the fin thermistor
ATXP20~35 + FTXP20~71 + ARXP20~35 + RXP20~71
Split Comfora R32
ESIE18-01D – 2022.02
2 Route the thermistor harness towards the appropriate PCB.
3 Connect the thermistor connector to the appropriate PCB.
INFORMATION
Some of the thermistors are wired to the same connector. See connector and pin
information of the thermistors at the start of the electrical check procedure and
"6.2 Wiring diagram" [
to the same connector.
4 When installing the complete set of thermistors wired to the same connector:
▪ Install all other thermistors wired to the connector in their thermistor
holder,
▪ Route the thermistor harness of all thermistors towards the appropriate PCB
or intermediate connector,
▪ Connect the thermistor connector.
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.
5 Fix the thermistor harness using new tie straps
6 Install the insulation around the thermistor.
7 Fix the insulation and the thermistor wire using new tie straps.
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 Locate the thermistor on the appropriate PCB.
2 Measure the temperature using a contact thermometer.
INFORMATION
The thermistors may vary according to the specific unit.
3 Determine the thermistor resistance that matches the measured
temperature.
Thermistor – Table A
T °C kΩ T °C
–20 197.81 10
4
144]. ALWAYS replace the complete set of thermistors wired
Action
No further actions required.
Return to the troubleshooting of the
specific error and continue with the
next procedure.
"3.10 Plate
kΩ T °C kΩ
39.96 40
3 Components
|
4
work" [ 100].
T °C kΩ
10.63 70 3.44
Service manual
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