Note: Motor mounted on second dimension Zonefirst Power Close/Spring Open 24V
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Part #ZDB 10X12
10"H x 12"W Bottom Mount Damper
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Brand: Zonefirst
The ZDB have a minimum position setting that allow the damper to remain open to a pre-set position instead of closing off fully. This minimum position provide for a small amount of air to be bypassed through the damper to lessen the need for a separate bypass damper and provide continual air circulation. To set the minimum position, set when there is no power to the damper and it is in the open position. Loosen the long minimum position set screw and move to a desired setting shown on the minimum position label and re-tighten. When the damper is powered closed the minimum position screw will stop the damper at the position set.
Two wire, 24 V power close spring return zone damper
Zonefirst Zone Damper, Bottom Mount, Series: ZDB, 10 x 12 in Size, Rectangular Shape, 24 VAC, CCW Blade Action, MSS Spring Return Synchronous Motor, 2-Wire Electrical Connections