"CW" indicates clockwise direction, while "CCW" indicates counterclockwise direction.

Ensure that the damper is of the type that opens by turning the damper shaft clockwise (CW).

Rotate the damper shaft to fully closed (CCW) position.

LONGWAY Damper products sometimes have “W” instead of “R” (or “L” ) in their names.

CW equals Right,and CCW equals Left.