Daikin FTXA20A, Руководство по обслуживанию

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2 | Components
Service manual
151
FTXA20~50A(W)(S)(T) + FTXA20~50B(B)(S)(T) + RXA42+50A +
RXA20~35A(9) + RXA42+50B
Split Stylish R32
ESIE18-03D – 2021.05
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? Action
Yes No further actions required.
No Return to the troubleshooting of the
specific error and continue with the
next procedure.
2.19.2 Other thermistors
Checking procedures
To perform an electrical check of the fin thermistor
Prerequisite: Stop the unit operation via the user interface.
Prerequisite: Turn OFF the respective circuit breaker.
Prerequisite: Remove the required plate work, see "2.14 Plate work" [
4
120].
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 kΩ T °C kΩ T °C kΩ
–20 197.81 10 39.96 40 10.63 70 3.44
–19
–18
–17
–16
–15
–14
–13
–12
–11
186.53
175.97
166.07
156.80
148.10
139.94
132.28
125.09
118.34
11
12
13
14
15
16
17
18
19
38.08
36.30
34.62
33.02
31.50
30.06
28.70
27.41
26.18
41
42
43
44
45
46
47
48
49
10.21
9.81
9.42
9.06
8.71
8.37
8.05
7.75
7.46
71
72
73
74
75
76
77
78
79
3.32
3.21
3.11
3.01
2.91
2.82
2.72
2.64
2.55
–10 111.99 20 25.01 50 7.18 80 2.47