Patent ID: 8364318
Filing Date: 2013-01-29
Classification: F24F,G05B,Y02B

Abstract:
1. A Demand Control Ventilation (DCV) system for a building, comprising: a damper having a range of damper positions, the damper for controlling a flow of outside air into the building; a multi-speed fan in fluid communication with the damper for drawing outside air through the damper and into the building; a controller, the controller configured to control the position of the damper such that a desired flow of outside air is drawn through the damper and into the building, wherein the position of the damper is dependent on both the desired flow of outside air and the speed of the multi-speed fan; and wherein the controller stores a damper position and a fan speed for each of two or more calibrated flows of outside air, the controller interpolates between at least one of the damper positions and the fan speeds for at least two of the calibrated flows to achieve the desired flow of outside air.