34 RT-SVX23D-EN
Installation
Smoke Detector - (ReliaTel™ only) Customer Low Voltage Wiring-
When interlocking System Sensor smoke detectors together, all of the detectors must be powered
from the same power supply. If multiple smoke detectors are required, all detectors must be
disconnected from the HVAC unit power supply and connected together from another single
source supply.
Note: Do not interconnect smoke detectors together that have separate power supplies. Do not
exceed ten smoke detectors on one power supply.
Note: Multiple System Sensor smoke detectors are connected together using terminals 1 and 12
on each detector.
If you have supply and return smoke detectors in all HVAC units, you can connect a maximum of
5 HVAC units (10 detectors) up to one power supply. See the following field wiring example below.
If you have more than 5 HVAC units, you can connect all the supplies together on one power supply
(up to 10 HVAC units), and all the returns together (up to 10 HVAC units) on another power supply.
See the following field wiring example below.
Figure 26. Smoke detector field wiring examples
More than 5 HVAC units
5 or fewer HVAC units
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