Space Temperature Averaging - Trane Voyager Commercial Installation, Operation And Maintenance Manual

Figure 33. Remote minimum position potentiometer
(BAYSTAT023)

Space Temperature Averaging

Space temperature averaging is accomplished by
wiring a number of remote sensors in a series/parallel
circuit.
The fewest number of sensors required to accomplish
space temperature averaging is four. Example #1
illustrates two series circuits with two sensors in each
circuit wired in parallel. Any number squared, is the
number of remote sensors required. Example #2
illustrates three sensors squared in a series/parallel
circuit. NSB panel remote sensors must use twisted/
shielded cable.
Figure 34. Space temperature averaging
Example #1
Remote Sensor #1
Remote Sensor #3
Example #2
Remote Sensor #1 Remote Sensor #2
Remote Sensor #4 Remote Sensor #5
Remote Sensor #7 Remote Sensor #8
RT-SVX34R-EN
Remote Sensor #2
Remote Sensor #4
To RTRM J6-1 and J6-2
or to ZSM terminals 1
and 2 or NSB panel terminals
S1 and S2. Shield to terminal 11.
Remote Sensor #3
Remote Sensor #6
Remote Sensor #9
Table 18. Temperature vs. resistance (temperature
vs. resistance coefficient is negative)
Nominal
Degrees F°
Resistance
-20° 170.1 K - Ohms
-15° 143.5 K - Ohms
-10° 121.4 K - Ohms
-5° 103.0 K - Ohms
0° 87.56 K - Ohms
5° 74.65 K - Ohms
10° 63.80 K - Ohms
15° 54.66 K - Ohms
20° 46.94 K - Ohms
25° 40.40 K - Ohms
30° 34.85 K - Ohms
35° 30.18 K - Ohms
40° 26.22 K - Ohms
45° 22.85 K - Ohms
50° 19.96 K - Ohms
55° 17.47 K - Ohms
60° 15.33 K - Ohms
65° 13.49 K - Ohms
70° 11.89 K - Ohms
75° 10.50 K - Ohms
80° 9.297 K - Ohms
85° 8.247 K - Ohms
90° 7.330 K - Ohms
95° 6.528 K - Ohms
100° 5.824 K - Ohms
I I n n s s t t a a l l l l a a t t i i o o n n E E l l e e c c t t r r i i c c a a l l
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