Thermostat

CO2 Expansion Card

8403-086

8403-086

The easily installed CO2 card allows the brightstat to control an on/off or modulating ventilation option based on CO2 inside a classroom or occupied area. Modulating CO2 control limits fresh air intake to the amount needed based on room occupancy for select Bard products including the I-TEC. Refer to the Bard installation instructions for the product being installed to see if ventilation uses  on/off or 0-10V modulating control.