brosco.com 11 Air Louver inserts provide ventilation and air quality control while maintaining fire safety. A spring-loaded fusible link mechanism is incorporated into the 1900A Series which automatically closes the louver in a fire to block flames and smoke. Air louvers help regulate indoor temperatures, reduce energy consumption, prevent the build-up of hazardous fumes, and can even contribute to sustainable building performance. Adjustable Z-Blade Louver with Fusible Link activated at 165° F is ideal for use in steel and composite fire doors up to a 90 minute rating. The self-attaching frame style is ideal for installation in existing door cutouts. Louver assembly is 1-9/16" deep. • 45% Free air flow area • Bronze Baked Enamel Finish • Fusible link louvers can be installed in 45, 60 and 90-minute Architectural Doors*. Model 800A1 louvers feature inverted Y blades. These louvers are ideal for Schools, Class A and Institutional buildings with Non-Vision construction and four mounting options. Vandal-proof design; basic blade unit with flanged frame welded to face (corridor) side and separate removable flanged frame on opposite side; fits 1-3/4" thick doors only. • 50% Free air flow area • Bronze Baked Enamel Finish • Fastening system leaves corridor side of door free of fasteners Louver Inserts 1900A Series – Fire-Rated Operable “Z” Blade Louver 800A1 Series – Standard Inverted “Y” Blade Louver (non-rated) 90-Minute Fire Rated Fusible Link Metal Louvers Model 1900A Fusible Link Louver – Installed Net Free Air in Square inches Hollow Metal Door Wood Door 18" x 18" X X 129 24" x 24" X X 230 Metal Door Louvers (non-rated) Model 800A1 Door Louver Louver – Installed Net Free Air in Square inches Hollow Metal Door Wood Door 18" x 12" X X 108 24" x 12" X X 144 24" x 24" X X 288 *Cannot be installed in 20-minute rated doors. CONSULT LOCAL CODES ON REQUIREMENTS FOR REQUIRED FIRE RATED OPENINGS
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