SPT Sensors
Carrier Sensors CARRIER CORPORATION ©2021
Installation Guide All rights reserved
17
To address an SPT Standard sensor
If the Rnet has multiple SPT Standard sensors, the first sensor retains its default address of 1. You must give each
additional SPT Standard a unique address on the Rnet. To set the address:
1 Pull the back plate off the sensor, pulling from the bottom first.
2 Remove the two hexagonal screws that attach the circuit board to the cover plate.
3 Remove the cover plate.
4 On the circuit board, set the address jumper to 2, 3, or 4.
5 Attach the circuit board to the cover plate with the hexagonal screws.
Rnet wiring specifications
NOTE Use the specified type of wire and cable for maximum signal integrity.
4 conductor, unshielded, CMP, plenum rated cable
Jacket: White
Wiring: Black, white, green, red
Mounting location
Mount the sensor:
• In an area representing the average temperature in the space
• On an interior wall
• Approximately 5 feet (1.5 meters) from the floor, or as required by local code
• At least 4 feet (1.2 meters) from any corner
• At least 2 feet (.6 meter) from an open doorway
Do not mount the sensor:
• In drafty locations such as near air conditioning or heating ducts, or near open windows
• Over heat sources such as baseboard heaters, radiators, directly above wall-mounted lighting dimmers, or in
direct sunlight
NOTE The sensor mounting plate accommodates the NEMA standard 2x4 in. standard single gang electrical box.
However, the sensor can be mounted directly on the wall surface if local codes permit.=
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