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Maintenance
Zone Temperature Sensor (ZTS) Test
Note:These procedures are not for programmable or digital models and are conducted with the Zone Sensor
Module electrically removed from the system.
Test 1
Zone Temperature Thermistor (ZTEMP)
This component is tested by measuring the resistance between terminals 1 and 2 on the Zone Temperature Sensor.
Table 55 - Thermistor Resistance / Temperature Chart
Temperature/resistance coefficient is negative.
Temperature | Resistance |
(°C) | (kOhms) |
|
|
103 | |
|
|
74.65 | |
|
|
54.66 | |
|
|
46.94 | |
|
|
40.4 | |
|
|
34.85 | |
|
|
2 | 30.18 |
|
|
4 | 26.22 |
|
|
7 | 22.85 |
|
|
10 | 19.96 |
|
|
13 | 17.47 |
|
|
16 | 15.33 |
|
|
18 | 13.49 |
|
|
21 | 11.89 |
|
|
24 | 10.5 |
|
|
27 | 9.297 |
|
|
29 | 8.247 |
|
|
32 | 7.33 |
|
|
35 | 6.528 |
|
|
38 | 5.824 |
|
|
65 |