Many local codes require the installation of a ceiling radiation damper to protect the bath fan opening against the spread of heat and fire through the ductwork. Installed between the housing and grille, the damper employs an insulation blanket that closes off the opening in an emergency by means of a heat-sensitive fusible link. Our ceiling dampers meet UL Standard 555C and are labeled for use in fire-resistive floor/ceiling membranes.
STEEL FRAME & REINFORCED
FIBER THERMAL CURTAIN
Heat sensitive 165° replaceable fusible link
Galvanized steel frame with insulation blanket constructed of non-asbestos, high-temperature reinforced fiber thermal curtain
UL tested and labeled (UL Standard 555C) for use in 1, 2, and 3-hour floor-ceiling and roof-ceiling construction
.024 Galvanized Steel Frame; Insulation Blanket Constructed of Non-Asbestos, High-Temperature Reinforced Fiber Thermal Curtain
NXCFRD: 23 in. x 9.25 in. x 8 in.
NXSRD: 22 in. x 18.25 in. x 13 in.
NXCFRD: Contractor Series Damper
NXMRD: MS Series Damper for Non-Lighted
NXMLRD: MS Series Damper for Lighted
NXSRD: SH Series Damper for Non-Lighted
NXSLRD: SH Series Damper for Lighted
|Multi UPC Info|
NXMRD: 697453535700 ; 047242701609 (QTY 10)
NXMLRD: 697453535502 ; 697453535557 (QTY 4)
NXSRD: 697453535809 ; 047242581157 (QTY 4)
|Country of Origin - Assembly|
US from Domestic and Imported Components
Radiation dampers work to restrict the spread of fire by closing off the bath fan opening. Install a damper with your contractor-grade, SH series, or MS series bath fan for added protection should an emergency occur.