Demand Controlled Ventilation Incentive Program.

Carbon dioxide sensors are designed to interact with a demand control ventilation device within a building's HVAC system. If the carbon dioxide levels exceed the set point, the ventilation is increased until the levels are back into the proper range. The sensors are compatible with most individual packaged rooftop or built-up air handling units. They automatically sense when the outside air is right to provide free cooling through an economizer as a first stage of air conditioning. When more fresh air is needed, the air input ventilation through an economizer is increased. When the carbon dioxide levels are within the proper range, these sensors reduce the flow of outside air into the building, thereby reducing over-ventilation in air conditioning and heating modes to lower energy consumption.

During periods of non-occupancy or low levels of process activity in commercial and industrial facilities, recirculation ventilation rates can be reduced. Sensors can monitor and control ventilation rates; meeting occupant safety and process requirements and minimizing energy consumption. In the summer cooling season for areas that do not have excessive humidity, a great amount of "free" cooling can be realized by using a demand-controlled ventilation (DCV) scheme that takes advantage of cooler evening temperatures.

Click here for details on the incentives available for the installation of demand controlled ventilation systems on existing buildings and to print a Demand Controlled Ventilation Incentive Agreement.