To Wire And Mount The Outdoor Rh Sensor - Carrier SPS Installation Manual

Relative Humidity sensors
Wire the sensor to the Open controller. See diagrams below and the controller's Installation and Startup
8
Guide for details.
Input
15–36 Vdc
18–36 Vdc or
21.6–26.4 Vac
Place the sensor's cover onto the probe unit and gently turn until it is tight.
9
10 Verify that you are getting a humidity reading.
NOTE Allow up to 20 minutes after powering up for the sensor reading to stabilize.

To wire and mount the Outdoor RH sensor

See sensor diagram in To wire and mount the Duct RH sensor (page 43).
Use the 2 mounting screws provided to secure the sensor.
1
Remove the cover and install conduit connectors, watertight fittings, and/or 1/2" vent plug.
2
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.
At the sensor end of the cable, strip back the jacket from the cable for at least 3 inches. Strip 1/4 inch of
3
insulation from each conductor. If using shielded cable, cut the shield and drain wire from the cable.
Wire the unit for power. See Typical power wiring diagrams for Duct RH and Outdoor RH sensors (page
4
46).
44
Output Wiring diagram
4–20 mA
4-20 VAC
mA VDC
0–10 Vdc
4-20 VAC
mA VDC
4–20 mA Output
15–36 Vdc supply voltage
Gnd 0-10
V
18–36 Vdc or 21.6–26.4 Vac
supply voltage
Supply ground/Signal common
0–10 Vdc Output
Gnd 0-10
V
Carrier Sensors