Carrier ZS Standard - To Wire and Duct-Mount the Sensor

CO2 sensor
Carrier Sensors CARRIER CORPORATION ©2021
Installation Guide All rights reserved
46
To wire and duct-mount the sensor
Duct installation requires the Aspirator Box Accessory (Part #33ZCASPCO2) to house the CO2 sensor.
To mount the aspirator box and sensor:
1 Drill a 1.25 inch (3.18 cm) hole in the return duct.
2 Remove the aspirator box cover.
3 Insert the aspirator box sampling tube into the hole.
4 Secure the box to the duct using 2 field-supplied #8 x 1" sheet metal screws.
5 Remove .5 inch (1.3 cm) conduit knockout, then install the conduit fittings.
6 Mount the CO2 sensor in the aspirator box using 2 field-supplied #8 x 32 machine screws.
7 To wire the CO2 sensor, see the instructions above in To wire and wall-mount the CO2 sensor (page 45).
8 Install the aspirator box cover.
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