Fire dampers are ul555 tested and labeled devices installed in ducts and air transfer openings or air distribution systems designed to close upon the detection of heat.
Fire damper installation in wood floor.
Wall rating 2 hr.
Detail of opening preparation and fire damper installation.
Ceiling fire dampers ul classified radiation dampers for wood truss construction the cfd7t is a ul classified ceiling fire damper that is ul listed for installation in wood truss floor ceiling and roof ceiling designs l528 l546 l558 l574 l585 l586 l592 p533 p545 p548 p572 and h502.
The dampers are designed for operation in the vertical or horizontal position with blades running horizontal.
Lloyd industries offers a wide range of fire damper products including back draft dampers fire rated access doors air control dampers and smoke dampers.
Fire damper installation operation maintenance instructions iom fire dampers 0718 nca manufacturing inc.
Safe air dowco s installation notes are applicable to fire dampers smoke dampers and combination dampers on most occasions.
2 1 2 stud or runner 1 2 gypsum wallboard retaining angle damper sleeve fire damper duct 1 2 thick filler pieces 2 1 2 wide to be.
These fire dampers offer protection in the case of a fire by preventing the flames from spreading through your ventilation and air ducts.
The following information may vary among different manufacturers and should not serve as a general guide of damper installation.
These designs are also similar to the fire resistance.
The dampers are to be installed square and free from twisting or racking.
This installation instruction applies to fire dampers static dynamic curtain single and multi blade types mounted in the plane of an ul approved fire partition.