The CRD-1 is a UL555C classified damper designed to limit the radiant heat transfer through an opening in the ceiling membrane of a fire-resistance rated floor/ceiling assembly of three hours or less

Steel double deflection supply grille, 3/4" blade spacing, front blades parallel to short dimension FEATURES AND BENEFITS Available with front louvers vertical or horizontal Optional opposed blade damper has screwdriver adjustment accessible through face of register Front and rear louvers are individually adjustable Insect and debris screens are not available when dampers are fitted Material is steel #8 x 11/4” lg. Phillip’s flat head sheet metal screws (painted) All dimensions are ± 1/16”

Quick – up to 6 times faster than traditional suspension systems Safe – can be pre-installed to channel using pre-fitted washer/nut or using retention clip reducing time working at height Easy – integral ergonomically designed release button allows for simple adjustment Secure – button acts as a locking screw and indicator clearly highlights the cable is locked in position for ultimate security Versatile – variety of foot attachments available to suit applications Strong – highest load rating capability to date up to 550 lbs with 5:1 SWL NOT suitable for use in chlorinated / swimming pool environments UniGrip - Standard is designed for non-mechanical fixing through brackets. It's supplied with retention clip for pre-fabrication applications and features central cable exit.