Installation Guide

BD Series

Select a mounting location. When using a single exhaust point, the damper should be installed directly

to the exhaust vent.

When using multiple exhaust points, the damper can be located at the “Y”, “T” or collector box.

If desired, additional dampers can be mounted at each exhaust view point. Based on the plane of the air

flow, the damper should be mounted in a 180 degree radius above a horizontal axis.

Mounting the damper in an inverted position may prevent the blades from closing completely.

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BD Series Select a mounting location. When using a single exhaust point, the damper should be installed directly to the exhaust vent. When using multiple exhaust points, the damper can be located at the “Y”, “T” or collector box. If desired, additional dampers can be mounted at each exhaust view point. Based on the plane of the air flow, the damper should be mounted in a 180 degree radius above a horizontal axis. Mounting the damper in an inverted position may prevent the blades from closing completely.