Feedback Solutions offers a new strategy for Demand Control Ventilation in buildings using real-time occupant counts. We leverage best-in-class, 3rd party people counting sensors with our patented technology platform to continuously calculate highly accurate, real-time occupant counts within each HVAC zone in a building. This data is then communicated via BACnet/IP, (sent as an analog input value to the BMS or DDC) so that ventilation requirements are optimized seamlessly based on actual occupant demand.
Feedback works with the clients’ BMS supplier to define a new sequence of operations to modulate the fan speeds and damper positions to supply the required amount of outdoor air based on the actual ventilation requirement. These real-time adjustments reduce HVAC-related energy consumption by as much as 40%, significantly reducing GHG emissions and resulting in less wear and tear on critical HVAC equipment. This is achieved while meeting important ASHRAE guidelines and ensuring required Indoor Air Quality (IAQ). This immediately deployable solution takes the pressure off of the need to complete deep retrofits to meet pressing GHG reduction targets.