RT-SVX075C-EN
47
Notes:
– Resistance in excess of 2.5 ohms per
conductor can cause deviations in the
accuracy of the controls.
– Confirm the wiring between controls and
the unit termination point does not exceed
two and a half (2.5) ohms/conductor for the
length of the run.
• Do not run the electrical wires transporting DC signals
in or around conduit housing high voltage wires.
DC Conductors
Table 10. Zone sensor module wiring
Distance from Unit to Control Recommended Wire Size
0 - 150 feet
22 gauge
0 - 45.7 m 0.33 mm
2
151 - 240 feet
20 gauge
46 - 73.1 m 0.50 mm
2
241 -385 feet
18 gauge
73.5 - 117.3 m 0.75 mm
2
386 - 610 feet
16 gauge
117.7 - 185.9 m 1.3 mm
2
Table 10. Zone sensor module wiring (continued)
Distance from Unit to Control Recommended Wire Size
611 - 970 feet
14 gauge
186.2 - 295.7 m 0.2 mm
2
Note: See Symbio™ 700 unit controls schematic, 1213-
4349, for controls wiring.
Space Temperature Averaging
Space temperature averaging is accomplished by wiring a
number of remote sensors in a series/parallel circuit.
When using the BAYSENS016* or BAYSENS077*, at least
four sensors are required to accomplish space temperature
averaging.
• Example #1 illustrates two series circuits with two
sensors in each circuit wired in parallel. The square of
any number of remote sensors is required.
• Example #2 illustrates three sensors squared in a
series/parallel circuit. Using BAYSENS077*, two
sensors are required to accomplish space temperature
averaging.
• Example #3 illustrates the circuit required for this
sensor. lists the temperature versus resistance
coefficient for all sensors.
Installation
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