Products - 03/02/2011

Built-in carbon dioxide and VOC detection

The BXC inaugurates a new generation of advanced terminals for mechanical ventilation: for the first time in the world, an air extract unit incorporates CO2 and VOC sensors.

Both sensors employ the same principle: the opening threshold is selected from among 6 levels at the time of installation. It is set on a potentiometer that can be reached simply by removing the front panel of the product.

When the level of CO2 or of VOC (depending on the version of the product) is below the opening threshold, the airflow is at the baseline rate (minimum). A green LED under the translucent lens on the front panel then indicates that the indoor air quality is satisfactory. When the level of the pollutant rises above this threshold, the extract unit opens to the peak airflow and the LED turns yellow; this state lasts as long as the level of pollution exceeds the preset threshold. The peak airflow rapidly decreases the concentration of the pollutant, and the extract unit returns to the baseline airflow when the level of the pollutant has remained below the threshold for more than 20 minutes. This ensures excellent indoor air quality while limiting heat losses, since the airflow remains low at all times when the levels of these pollutants are low.

The threshold can be reset at any time by removing the front panel of the extract unit and changing the setting of the potentiometer.

Slave versions can be connected and driven by a BXC CO2 or BXC VOC (up to 5 slave extract units can be connected to a master).

More information on the product: Click there.