To Wire The Relative Humidity Sensor To The Controller - Carrier VAV Zone II Installation And Startup Manual

Verify that the RH/CO2 jumper is set to 0-5Vdc on the VAV Zone II.
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Wiring diagram for #33ZCT55CO2:

To wire the Relative Humidity sensor to the controller

Part #33ZCSENSRH-02
The Relative Humidity (RH) sensor is used for zone humidity control (dehumidification) if the rooftop unit has a
dehumidification device. If not, the sensor only monitors humidity.
NOTE Do not use a relative humidity sensor and CO
Strip the outer jacket from the cable for at least 4 inches (10.2 cm). Strip .25 inch (.6 cm) of insulation from
1
each wire.
Wire the sensor to the controller. See diagram below.
2
Using electrical tape, insulate any exposed resistor lead to prevent shorting.
3
Verify that the RH/CO2 jumper is set to 0-5 Vdc.
4
VAV Zone II Controllers
Installation and Start-up Guide
sensor on the same zone controller.
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Installing the VAV Zone II
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