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What is the Barometric Relief Damper?

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50 views asked Jun 27, 2016 by Matt Hall
retagged Jun 27, 2016 by Matt Hall

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When Outside Air (OSA) bring into the building by economizer, space would be pressurized. in order to balance the space pressure, can either use a power exhaust to discharge the equal amount of the incoming outside air to outside or just by installing a barometer damper on the exterior wall to relief the excessive air caused by bringing outside air to the space.

A Barometric Relief damper consist of a few hinged lightweight blades which can allow the air in only one direction such a way that the excessive space air can discharge to the outside in case of space over pressurization but outside air cannot hypothetically enter into the building through the relief blades.
answered Jun 27, 2016 by Matt Hall

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