Air Distribution system

 Air Distribution system Is the Distribution of Conditioned Air in Buildings and Rooms in Order to Maintain Temperatures, Humidity and Air Velocities within Occupied Space at Acceptable Conditions.

It includes air handlers, ductwork, and associated components for heating, ventilating, and air-conditioning buildings.

Types of Air Distribution

  • Constant-volume systems (CV) operate at a constant airflow rate; only temperature varies to maintain the zone setpoint. Constant-volume units can be used in single-zone or multizone applications.
  • Variable Air Volume (VAV)  air handler varies in response to terminal units’ intake of supply air to maintain zone temperature setpoints. The supply-air fan is controlled to maintain a static pressure setpoint in the ductwork.

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