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VCCX2 Controller Technical Guide
Duct Mounted E-BUS CO
2
Sensor
The ASM01831 Duct Mounted E-BUS CO
2
Sensor with Remote
Pickup Tube is used for sensing the current CO
2
level in the
HVAC unit’s return air stream. This is useful when you want
an average CO
2
reading in the area served by the HVAC unit or
when you don’t want a wall mounted E-BUS CO
2
Sensor due to
sensor tampering concerns in the space.
The Duct Mounted Return Air CO
2
Sensor is comprised of the
CO
2
Sensor, the AAON Aspiration Box Assembly, and a Remote
Pickup Tube.
The Duct Mounted Return Air E-BUS CO2 Sensor with Remote
Pickup Tube is designed to be mounted in the return air duct of
the HVAC unit and uses its integral aspiration box to sample the
CO
2
level in the duct. See Figure 10, this page for wiring and
installation details.
NOTE: If using multiple E-BUS Sensors or Modules, the
E-BUS Hub or Adapter Board may be required.
Figure 10: Duct Mounted E-BUS CO2 Sensor Wiring
WIRING
Duct Mounted E-BUS CO
2
Sensor
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