Daikin FTXTA30AW Service Manual page 61

ESIE17-19C | Part 2. Troubleshooting
• The resistance values are defined by below table
- Resistance at 23°C: 21.85 kΩ.
- Resistance at 24°C: 20.90 kΩ.
• The measured value 21.86 kΩ is inside the range, thermistor R3T passes the check.
I
NFORMATION
The user interface allows to monitor most thermistors.
If the measured resistance of the thermistor matches the temperature measured with the contact thermometer but the
temperature for the corresponding thermistor is not correct on the user interface display, replace applicable PCB.
Table 2-1: Thermistor resistance / temperature characteristics (type 1)
T °C kΩ T °C
-20 197.81 0
-19 186.53 1
-18 175.97 2
-17 166.07 3
-16 156.80 4
-15 148.10 5
-14 139.94 6
-13 132.28 7
-12 125.09 8
-11 118.34 9
-10 111.99 10
-9 106.03 11
-8 100.41 12
-7 95.14 13
-6 90.17 14
-5 85.49 15
-4 81.08 16
-3 76.93 17
-2 73.01 18
-1 69.32 19
Table 2-2: Thermistor resistance / temperature characteristics (type 2)
T °C kΩ T °C
-20 192.08 0
-19 181.16 1
-18 170.94 2
-17 161.36 3
152.38 4
-16
-15 143.96 5
-14 136.05 6
-13 128.63 7
-12 121.66 8
-11 115.12 9
-10 108.96 10
19/08/19 | Version 1.1
Optimized Heating 4
"Thermistor resistance / temperature characteristics (type
kΩ T °C kΩ
65.84 20 25.01
62.54 21 23.91
59.43 22 22.85
56.49 23 21.85
53.71 24 20.90
51.09 25 20.00
48.61 26 19.14
46.26 27 18.32
44.05 28 17.54
41.95 29 16.80
39.96 30 16.10
38.08 31 15.43
36.30 32 14.79
34.62 33 14.18
33.02 34 13.59
31.50 35 13.04
30.06 36 12.51
28.70 37 12.01
27.41 38 11.52
26.18 39 11.06
kΩ T °C kΩ
64.17 20 24.45
60.96 21 23.37
57.94 22 22.35
55.08 23 21.37
52.38 24 20.45
49.83 25 19.56
47.42 26 18.73
45.14 27 17.93
42.98 28 17.17
40.94 29 16.45
39.01 30 15.76
2.4. Component checklist
T °C kΩ T °C
40 10.63 60
41 10.21 61
42 9.81 62
43 9.42 63
44 9.06 64
45 8.71 65
46 8.37 66
47 8.05 67
48 7.75 68
49 7.46 69
50 7.18 70
51 6.91 71
52 6.65 72
53 6.41 73
54 6.65 74
55 6.41 75
56 6.18 76
57 5.95 77
58 5.74 78
59 5.14 79
80
T °C kΩ T °C
40 10.41 60
41 10.00 61
42 9.61 62
43 9.24 63
44 8.88 64
45 8.54 65
66
46 8.21
47 7.90 67
48 7.60 68
49 7.31 69
50 7.04 70
1)":
kΩ
4.87
4.70
4.54
4.38
4.23
4.08
3.94
3.81
3.68
3.56
3.44
3.32
3.21
3.11
3.01
2.91
2.82
2.72
2.64
2.55
2.47
kΩ
4.87
4.70
4.54
4.38
4.23
4.08
3.94
3.81
3.68
3.56
3.44
Page 61