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

103

 

 

-15

74.65

 

 

-9

54.66

 

 

-7

46.94

 

 

-4

40.4

 

 

-1

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

 

 

RT-SVX19A-E4

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Image 63
Trane RT-SVX19A-E4 manual Temperature/resistance coefficient is negative, Thermistor Resistance / Temperature Chart

RT-SVX19A-E4 specifications

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