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The Cases for and against Manual Volume Dampers
Journal Article by ASHRAE, 2003
By James T. Terry' Powell, P.E., Member ASHRAE
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Army Corps of Engineers' construction documents for a military hospital in Fort Bragg, N.C., show more than 2,000 manual volume dampers (MVDs) upstream of variable air volume boxes. However, the installation of these dampers became the subject of a dispute during construction. According to the subcontractor, the system was a "high-pressure" system, making MVDs detrimental to its operation.
Citation: ASHRAE Journal, vol. 45 no. 9, September 2003