Wiring A T55 Space Temperature Sensor; Wiring Specifications; To Wire The T55 Sensor To The Controller - Carrier VVT Zone Installation And Startup Manual

Installation

Wiring a T55 space temperature sensor

Part #33ZCT55SPT
This wall-mounted sensor monitors space temperature and can be used instead of an SPT sensor.

Wiring specifications

Cable from sensor to controller:
Maximum length:

To wire the T55 sensor to the controller

Strip the outer jacket from the cable for at least 3 inches (7.62 cm). Strip .25 inch (.6 cm) of insulation
1
from each wire. Cut the shield and drain wire from the cable.
Wire the sensor to the controller, attaching the red wire to the T55 (Opt) terminal and the black wire to
2
the Gnd terminal. See diagram below.
Verify that the T55 (Opt) jumper is in the Thermistor position.
3
14
If <100 ft (30.5 meters)
If >100 ft (30.5 meters)
500 feet (152 meters)
22 AWG, unshielded
22 AWG, shielded
VVT Zone Controller