Installation
RT-SVX38B-EN 25
Note: Ensure that the wiring between controls and the
unit’s 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.
• Route low voltage wiring per Figure 27, p. 25.
DC Conductors
Space Temperature Averaging
(ReliaTel™ Only)
Space temperature averaging is accomplished by wiring a
number of remote sensors in a series/parallel circuit.
Using the BAYSENS016* or BAYSENS077*, at least four
sensors are required to accomplish space temperature
averaging. See diagram below.
Table 5. Zone sensor module wiring
Distance from Unit to Control Recommended Wire Size
0 - 150 feet 22 gauge
0 - 45.7 m .33 mm2
151 - 240 feet 20 gauge
46 - 73.1 m .50 mm2
241 -385 feet 18 gauge
73.5 - 117.3 m .75 mm2
386 - 610 feet 16 gauge
117.7 - 185.9 m 1.3 mm2
611 - 970 feet 14 gauge
186.2 - 295.7 m 2.0 mm2
Figure 25. ReliaTel conventional thermostat field wiring
diagrams
RTRM
Figure 26. ReliaTel options module
Figure 27. ReliaTel control customer low voltage
routing
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