SYSTEMS AND METHODS FOR CONTROL OF AN AIR DUCT

Abstract: a controller for an hvac system includes processing circuitry configured to perform a volumetric offset control (voc) scheme based on a flowrate offset setpoint to operate a valve to drive an actual flowrate offset between a supply rate of air entering a space and an exhaust rate of air leaving the space toward the flowrate offset setpoint. in some embodiments, the valve is configured to control the supply rate of air entering the space or the exhaust rate of air leaving the space and to provide sensor data indicating a flowrate therethrough. in some embodiments, the processing circuitry is configured to monitor a pressure of the space to detect a pressure condition and update the flowrate offset setpoint in response to detecting the pressure condition. in some embodiments, the processing circuitry is configured to perform the voc scheme based on the updated offset flowrate setpoint.

Inventor(s): Jean H. Scholten

CPC Classification: F24F11/30 (AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING (removing dirt or fumes from areas where they are produced ; vertical ducts for carrying away waste gases from buildings ; tops for chimneys or ventilating shafts, terminals for flues ))

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