Mechanical · L-ZPMFH

Notes:

Materials

Elements

Connections / Plates Insulation Partitions Roof / Floor Openings

About this detail

A combination fire and smoke damper is centered within a fire and smoke rated assembly partition penetration. The damper utilizes a galvanized steel sleeve fastened directly to the damper frame and perimeter angles, with sealant applied between the frame and sleeve. Fourteen-gauge galvanized steel perimeter angles measuring one and a half by one and a half inches minimum provide a one-inch overlap on all sides of the opening without being fastened directly to the partition. An airtight breakaway duct connection joins the ductwork to the assembly. An access panel is positioned within twelve inches of the fire smoke damper to allow servicing of the fusible rod and link, with the actuator located outside of the air stream. Clearances of one-quarter to one-half inch on height and width are filled with firestop material matching the UL rating requirements.

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