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By Douglas C. Hittle, PH.D., Fellow ASHRAE by Niong David is a document available to read on EtoBox.

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The document discusses controlling variable-volume HVAC systems. It describes how VAV systems work with single duct supply air maintained at a constant temperature and zone dampers varying airflow. Benefits include reduced energy use from lowering airflow at low loads and fan power savings. Challenges include ensuring control stability under varying airflow. The document also discusses controlling supply fans, return/exhaust airflow, and different fan configurations.

Author

Niong David

Language

EN