Installation
RT-SVX25G-EN 23
Smoke Detector
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.
Notes:
• Do not interconnect smoke detectors together that
have separate power supplies. Do not exceed ten
smoke detectors on one power supply.
• 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 five HVAC units
(10 detectors) up to one power supply. Refer to the field
wiring example in Figure 18.
I
f you have more than five 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. Refer to the field wiring example in
Figure 19.
F
igure 16. ReliaTel relative humidity sensor
(dehumidification option)
Figure 17. ReliaTel humidistat (dehumidification
option)
Figure 18. Smoke detector connections (up to 5 HVAC
units
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