dual-duct terminal unit

mixing box

1. A device used to reduce the air velocity in the duct of a medium- or high-pressure, high-velocity HVAC system; incorporates a valve which controls the volume of flow for distribution of air within a room and for mixing hot and cold air.
McGraw-Hill Dictionary of Architecture and Construction. Copyright © 2003 by McGraw-Hill Companies, Inc.
References in periodicals archive ?
However, modern dual-duct terminal units have separate dampers for cold and warm inlets and can be monitored for improper air mixing.
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