Fire Damper Installation In Floor

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 damper installation in floor.

Damper dimensional data duct transition connections dibd2 ow and dibd2ss ow dampers may be supplied. Out of wall ow fire dampers are designed so that the leading edge of the damper frame can be up to 8 203 out of the wall partition or masonry floor. Model g curtain fire dampers are offset in a sleeve to fit within the wall floor plane behind the customer s supplied grille. These combination fire and smoke dampers are designed for installation with the blades running horizontally.

Ibd20g static and dibd20g dynamic curtain type fire dampers for grille installation may be installed vertically in walls or horizon tally in floors with fire resistance ratings of less than 3 hours. Wall rating 2 hr. The following information may vary among different manufacturers and should not serve as a general guide of damper installation. A general diagram of a standard fire damper installation is shown in figure 1.

Detail of opening preparation and fire damper installation. Safe air dowco s installation notes are applicable to fire dampers smoke dampers and combination dampers on most occasions. 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.

Ow fire dampers may be used in fire resistance rating applications of less than 3 hours. These fire dampers offer protection in the case of a fire by preventing the flames from spreading through your ventilation and air ducts. The standard installation is with the leading edge of the blade with. Fire damper installation operation maintenance instructions iom fire dampers 0718 nca manufacturing inc.

For damper styles wr wc wo and bc only the duct connection portion extends through the wall and the damper assembly is mounted flush with the wall. A space between the sleeve and wall or floor is left to allow for thermal expansion in the event of heated airflow through the damper sleeve assembly. While there are other elements of an approved damper installation this figure will represent the. The fsd35 fsd36 and fsd37 are combination fire and smoke dampers designed to restrict the passage of flame and resist the passage of smoke.