The following information may vary among different manufacturers and should not serve as a general guide of damper installation.
Fire damper installation in wood floor.
Wall rating 2 hr.
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.
Lloyd industries offers a wide range of fire damper products including back draft dampers fire rated access doors air control dampers and smoke dampers.
The dampers are to be installed square and free from twisting or racking.
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.
Detail of opening preparation and fire damper installation.
The dampers are designed for operation in the vertical or horizontal position with blades running horizontal.
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.
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.
Dampers must be kept clean and protected from dirt dust and other foreign materials prior to and after installation.
The retaining angles on both sides of the fire damper may be inverted in order to accomodate a register or grille.
Caulking is not necessary nor is it allowed between the damper sleeves and the walls or.