Mechanical · M-DZ7TA

Horizontal Fire/Smoke Damper

Materials

Elements

Walls Partitions Floors / Slabs Connections / Plates Roof / Floor Openings

About this detail

A fire and smoke damper is installed within a rated concrete floor assembly with the damper blades positioned directly in the rated partition line. The steel sleeve extends a minimum of three inches on each side of the partition. Framing and mounting angles are installed single-sided or two-sided per the manufacturer's instructions. Ductwork connects via breakaway connections per the manufacturer's instructions, with openings sized by the general contractor with required clearance. The damper assembly includes blades, control linkage, an auxiliary operating jack shaft, a damper actuator, and optional firestat or end switches, accompanied by a duct access door.

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