Opposed Blade Volume Damper 3000-0BD-66X54 Accessories Standard Features * 4000 -

Standard Features * 4000 - door core grille with single frame * 4100 - door core grille with additional loose frame *

916 Series Submittal

Standard Features * Return air T-Bar lay-in filter grille * Removable louvered 20 gauge steel face * 20" x 20"x 1" filter (not included) * 7/8" fiberglass back plenum cut holes 6"-16" (collar by others) * Seismic support holes * Soft White

Square to round 2" collar with roll formed retention bead - available in square sizes only

Fixed bars with 0° deflection

Opposed Blade Volume Damper 3000-0BD-66X54 Accessories Standard Features * 4000 -h3. Standard Features * Opposed blade operation for precise volume control * 16 gauge galvanized channel frame * Blades are vee stiffened 16 gauge galvanized for strength and stability * Blades pivot on non metallic celcon bushings * 1 2" square zinc plated steel pivot pins * 1 2" square zinc plated steel adjustable operating shaft extending up to 4" beyond the air control frame * Single blades on dampers with a height of 12" or less * Mill finish h3.