Patent ID: 6857577
Filing Date: 2005-02-22
Classification: F24F

Abstract:
1. A thermally powered control assembly for a VAV air diffuser comprising: a movable damper member formed to extend across a supply air opening of the diffuser and movable relative thereto to vary the volume of supply air discharged from the opening; and a damper position control device including a plurality of thermal sensor-actuators, and a movable linkage assembly operatively associated with the damper member and the sensor-actuators to transmit movement of the sensor-actuators to the damper member for displacement of the damper member to vary the volume of supply air discharged from the diffuser, all of the sensor-actuator elements and all of the movable linkage assembly being positioned on, and accessible from, a room side of the damper member while the diffuser is mounted in a supporting ceiling or wall.