VENTPAK

carbon dioxide (CO2) based damper and direct digital control (DDC) module installed on packaged rooftop heating, ventilating, air conditioning, and refrigeration (HVAC/R) units, the damper module capable of drawing and regulating outside air into the HVAC/R units and then into inside spaces of high occupancy non-residential buildings associated with the HVAC/R units to control indoor air condition levels therein