Trane CVHE Troubleshooting Manual page 81

Table 20
Outdoor Air Temp.
A2 Analog Input
Thermistor Accuracy = 0.90° ° F from -10 to 0° ° F
Thermistor Accuracy =0.540° ° F from 0 to 700° ° F
Thermistor Accuracy = 1.80° ° F from 70 to 150° ° F
Type U Thermistor Temperature Versus Resistance and Terminal Voltage Table for a
pullup resistor of 6980 Ohms.
Used to sense temperatures at the following point:
1. Outdoor Air Temp. CVHE/F/G
Table 20
Temp ° ° F
Min Res
-10.0 117759
-5.0 99928
0.0 86006
5.0 73347
10.0 62706
15.0 53738
20.0 46161
25.0 39742
30.0 34292
35.0 29713
40.0 25830
45.0 22512
50.0 19668
55.0 17225
60.0 15120
65.0 13303
70.0 11367
75.0 10049
80.0 8903
85.0 7903
90.0 7029
95.0 6264
100.0 5592
CVHE-SB-32A
Max Res Min Vterm
124893 4.713
105882 4.666
89016 4.617
75873 4.557
64832 4.490
55532 4.416
47678 4.333
41029 4.242
35386 4.143
30628 4.037
26611 3.923
23180 3.803
20242 3.675
17718 3.542
15546 3.404
13670 3.262
12410 3.083
10956 2.935
9692 2.787
8592 2.640
7632 2.494
6792 2.350
6056 2.210
Max Vterm
4.729
4.685
4.630
4.573
4.508
4.435
4.355
4.266
4.169
4.065
3.953
3.835
3.709
3.578
3.441
3.300
3.190
3.044
2.896
2.748
2.601
2.456
2.313
76