Resideo C7232B1014 CO2 Duct Sensor Ndir

Product Description

The RESIDEO C7232B1014 is a duct-mount carbon dioxide sensor that uses non-dispersive infrared (NDIR) technology to measure CO2 levels in HVAC air distribution systems. It installs directly into ductwork and delivers real-time air quality data to ventilation control systems, enabling demand-controlled ventilation (DCV) strategies. The NDIR measurement method is well established for commercial HVAC applications, offering stable, accurate CO2 readings without the drift common in lower-grade sensing technologies. Licensed HVAC technicians and building automation contractors are the typical installers for this type of device.

This sensor is suited for commercial and institutional HVAC applications where demand-controlled ventilation is required to meet energy codes or indoor air quality standards. Duct-mount CO2 sensors like the C7232B1014 are commonly installed in main supply or return ducts where mixed-air sampling provides a representative reading of occupied-space CO2 concentrations. The sensor output feeds directly into building automation systems, DDC controllers, or compatible ventilation controllers to modulate outdoor air dampers based on actual occupancy load.

Key Features

• Non-dispersive infrared (NDIR) sensing technology for stable, accurate CO2 measurement
• Duct-mount form factor for direct installation into HVAC ductwork
• Provides real-time CO2 data to support demand-controlled ventilation control logic
• Designed for integration with building automation and DDC ventilation control systems
• Supports energy code compliance strategies by enabling occupancy-based ventilation adjustment

Compatibility

Designed as an OEM-style duct-mount CO2 sensor for use with commercial HVAC ventilation control systems that accept standard CO2 sensor signal outputs for demand-controlled ventilation applications.

Installation Notes

Installation should be performed by a licensed HVAC technician or building automation controls contractor. Power down the air handling unit and de-energize the control circuit before mounting or wiring the sensor. The sensor probe must be inserted into the duct and sealed to prevent air bypass, following the mounting instructions and any applicable local mechanical and electrical codes. Verify signal wiring and output type compatibility with the connected controller before commissioning.