Fire Damper Installation In Floor
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Damper dimensional data duct transition connections dibd2 ow and dibd2ss ow dampers may be supplied.
Fire damper installation in floor. 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. 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. Safe air dowco s installation notes are applicable to fire dampers smoke dampers and combination dampers on most occasions. These combination fire and smoke dampers are designed for installation with the blades running horizontally.
A general diagram of a standard fire damper installation is shown in figure 1. Model g curtain fire dampers are offset in a sleeve to fit within the wall floor plane behind the customer s supplied grille. 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. Ow fire dampers may be used in fire resistance rating applications of less than 3 hours.
Fire damper installation operation maintenance instructions iom fire dampers 0718 nca manufacturing inc. The retaining angles on both sides of the fire damper may be inverted in order to accomodate a register or grille. The fsd35 fsd36 and fsd37 are combination fire and smoke dampers designed to restrict the passage of flame and resist the passage of smoke. Wall rating 2 hr.
The standard location permits the damper to be installed outside the plane of the wall or floor. While there are other elements of an approved damper installation this figure will represent the. Detail of opening preparation and fire damper installation. The standard installation is with the leading edge of the blade with.
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. 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. And ibd2ss ow static fire dampers are for use in static fans off systems only.
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