To Wire The Spt Sensor To The Controller - Carrier UC Open XP Installation And Startup Manual

Wiring an SPT sensor
Recommended coloring
UL temperature rating
Voltage
Listing

To wire the SPT sensor to the controller

Partially cut, then bend and pull off the outer jacket of the Rnet cable(s). Do not nick the inner insulation.
1
Strip about .25 inch (.6 cm) of the inner insulation from each wire.
.25 in.
(.6 cm)
Wire each terminal on the sensor to the same terminal on the controller. See diagram below.
2
NOTE Carrier recommends that you use the following Rnet wiring scheme:
Connect this wire...
Red
Black
White
Green
SPT Sensor
24
Jacket: White
Wiring: Black, white, green, red
32–167°F (0–75°C)
300 Vac, power limited
UL: NEC CL2P, or better
Outer Jacket
Inner insulation
To this terminal...
+12V
Rnet-
Rnet+
Gnd
Rnet
GND
Rnet+
Rnet-
+12V
UC Open XP/UC Open XP IO