SPACE STATIC PRESSURE CONTROL

摘要

A system for controlling static pressure within a controlled space having an air flow sensor mounted in a hole in a wall in a controlled space for sensing the amount of air moving through the hole, a check valve associated with the air flow sensor for allowing air flow past said air flow sensor in only one direction, and an air flow controller connected to the air flow sensor and responsive thereto for controlling static pressure within the controlled space. A damper may be located in a exhaust duct for controlling the supply of air to the space and a second air flow sensor may be connected between the first air flow sensor and the damper and located to sense the air flowing through the supply duct so that changes in air flow in the supply duct can be controlled by the damper before such changes effect the static pressure within the controlled space.