Trane RT-SVX19A-E4 Installation Operation & Maintenance page 63

RT-SVX19A-E4
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 42 - Thermistor Resistance /
Temperature Chart
Temperature/resistance coefficient is
negative.
Temperature Resistance
(°C) (kOhms)
-21
-15
-9
-7
-4
-1
2
4
7
10
13
16
18
21
24
27
29
32
35
38
103
74.65
54.66
46.94
40.4
34.85
30.18
26.22
22.85
19.96
17 .47
15.33
13.49
11.89
10.5
9.297
8.247
7 .33
6.528
5.824
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