Trane CVHE Troubleshooting Manual page 78

Table 19
Auxiliary HR Ent. and Condenser Ent. and Leaving Water Temp.
A2 Analog Input
Thermistor Accuracy = 0.54° ° F from 15 to 140° ° 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. Auxiliary HR Entering and Leaving Water Temp. Pair CVHE/F
2. Condenser Ent. and Leaving Water Temp. Pair CVHE/F
Table 19
Temp F Min Res
15546 15120
61.0 14735
62.0 14361
63.0 13998
64.0 13645
65.0 13303
66.0 12970
67.0 12646
68.0 12332
69.0 12026
70.0 11729
71.0 11441
72.0 11160
73.0 10887
74.0 10622
75.0 10364
76.0 10113
77.0 9870
78.0 9632
79.0 9402
80.0 9177
81.0 8959
82.0 8746
83.0 8539
84.0 8338
85.0 8142
CVHE-SB-32A
Max Res Min Vterm
15546 3.404
15148 3.376
14762 3.348
14388 3.319
14024 3.291
13670 3.262
13327 3.233
12993 3.204
12669 3.175
12354 3.146
12048 3.117
11750 3.088
11461 3.058
11180 3.029
10907 2.999
10641 2.970
10383 2.940
10131 2.911
9887 2.881
9649 2.851
9418 2.822
9193 2.792
8974 2.763
8761 2.733
8554 2.704
8353 2.674
Max Vterm
3.441
3.413
3.385
3.357
3.329
3.300
3.272
3.243
3.214
3.185
3.156
3.127
3.098
3.068
3.039
3.010
2.980
2.951
2.921
2.891
2.862
2.832
2.803
2.773
2.744
2.714
73