Carrier ZS Standard - To Wire and Mount the Outdoor RH Sensor

Relative Humidity sensors
Carrier Sensors CARRIER CORPORATION ©2021
Installation Guide All rights reserved
59
To wire and mount the Outdoor RH sensor
See sensor diagram in To wire and mount the Duct RH sensor (page 57).
1 Use the 2 mounting screws provided to secure the sensor.
2 Remove the cover and install conduit connectors, watertight fittings, and/or 1/2” vent plug.
NOTE The inner ring will knock out first. Then tap the outer ring in 1 or 2 locations with a screwdriver to peel
it out. The cover will be connected to the housing by the sensor leads.
3 At the sensor end of the cable, strip back the jacket from the cable for at least 3 inches. Strip 1/4 inch of
insulation from each conductor. If using shielded cable, cut the shield and drain wire from the cable.
4 Wire the unit for power. See Typical power wiring diagrams for Duct RH and Outdoor RH sensors (page 60).
5 Wire the sensor to the Open controller. See diagrams below and the controller's Installation and Startup
Guide for details.
Input
Output
Wiring diagram
15–36 Vdc
4–20 mA
18–36 Vdc or
21.6–26.4 Vac
0–10 Vdc
6 Place the cover onto the unit and gently turn until it is tight.
7 Verify that you are getting a humidity reading.
NOTE Allow up to 20 minutes after powering up for the sensor reading to stabilize.
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