Daikin Sensira Series, Service Manual

Page: 118 / 172

2 | Components
Service manual
118
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
Name Symbol Location
(PCB) Connector
(pins) Inter-
mediate
connector
(pins) Referen
ce
(table)
Discharge
pipe
thermistor R3T Main (O/U) S90:5‑6 - A
Indoor unit
air (room)
thermistor R1T Display PCB
on main
PCB (I/U) S26:1‑2 S27:1‑2 (on
display PCB) B
Heat
exchanger
thermistor R2T Main (I/U) S32:1‑2 - A
4 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