Carrier SPS - To Wire and Duct-Mount the Sensor

CO2 sensor
32 Carrier Sensors
To wire and duct-mount the sensor
Duct installation requires the Aspirator Box Accessory (Part #33ZCASPCO2) to house the CO
2
sensor.
3.5 in.
(8.9 cm)
7.1 in.
(18 cm)
1.2 in.
(3.05 cm)
4.31 in.
(11 cm)
5.5 in.
(14 cm)
3.54 in.
(9 cm)
3.5 in.
(8.99 cm)
3.5 in.
(8.99 cm)
1.77 in.
(4.59 cm)
7.75 in.
(20 cm)
1.1 in.
(2.8 cm)
.25 in. dia.
(.64 cm dia.)
#33ZCASPCO2
aspirator box
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 CO
2
sensor in the aspirator box using 2 field-supplied #8 x 32 machine screws.
7 To wire the CO
2
sensor, see the instructions above in To wire and wall-mount the CO
2
sensor (page 31).
8 Install the aspirator box cover.