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7.2 Value of thermistor
Room sensor
R25℃=23KΩ±2%
B25℃/50℃=4200K±1%
Temp.(℃)
Resistor（KΩ）
-20
-19
-18
-17
-16
-15
-14
-13
-12
-11
-10
-9
-8
-7
-6
-5
-4
-3
-2
-1
0
1
2
3
4
5
6
7
8
9
10
11
12
13
Room sensor and Pipe Sensor
R25℃=23KΩ+2%
Temp.（℃）
266.905
18
250.866
19
235.895
20
221.911
21
208.838
22
196.609
23
185.163
24
174.443
25
164.399
26
154.983
27
146.153
28
137.87
29
130.096
30
122.799
31
115.946
32
109.51
33
103.462
34
97.779
35
92.437
36
87.415
37
82.691
38
78.248
39
74.067
40
70.133
41
66.43
42
62.943
43
59.659
44
56.566
45
53.651
46
50.904
47
48.314
48
45.872
49
43.569
50
41.395
51
20
Resistor（KΩ）
Temp.（℃）
32.215
30.671
29.21
27.828
26.521
25.283
24.111
23
21.94
20.94
19.99
19.09
18.23
17.42
16.65
15.97
15.22
14.56
13.93
13.34
12.77
12.23
11.71
11.22
10.76
10.31
9.89
9.49
8.1
8.74
8.39
8.05
7.73
7.43
Domestic air conditioner
Functions and Control
Resistor（KΩ）
56
6.1
57
5.87
58
5.65
59
5.44
60
5.24
61
5.04
62
4.86
63
4.68
64
4.51
65
4.35
66
4.19
67
4.04
68
3.9
69
3.76
70
3.63
71
3.5
72
3.38
73
3.26
74
3.15
75
3.04
76
2.94
77
2.84
78
2.74
79
2.65
80
2.56
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