Backdraft Vertical Mount 3550-60X42

Backdraft Vertical Mount 3550-60X42h3. Standard Features * 3550 Vertical mount * 3560 Horizontal mount air up * 3570 Horizontal mount air down * 3580 Round sizes available 5" to 24" * All non motorized backdraft dampers * Dampers are opened by air pressure differential and closed by gravity * 16 gauge channel frame with 26 gauge galvanized blades * Out of airstream linkage * Blades are vee stiffened 26 gauge for strength and stability * Square steel pivot pins * Nylon bushings * Single

built-in vanities

Spring actuated curtain-type fire damper with 2 1/4" round connection for horizontal or vertical mount

91 Series Submittal

104 D FR - U

Designed for ceiling or sidewall applications

PERFORMANCE DATA 907 Series Engineering/Performance Data

Standard Features * Galvaneal steel face designed for high air volume delivery * 360 air diffusion * No Labor Collar * Seismic support hangers * Available sizes: 6"

Type 304 stainless steel

3 or 4 way air patterns from face * One size fits 6" thru 16" (collar by others) * Soft White

blades prevent metal on metal rattle Countersunk mounting holes with color matching Phillips Pozidriv screws Rust-resistant pre-coat with durable powder finish Soft White Options Screwdriver operated Opposed Blade Damper 2" ADC compliant square to round collar with a bead for ease of installation Heavy Duty Construction MRI Compatible Insect Screen Fractional

904 - Double Deflection Adjustable Aluminum Blade Grille For a 36" x 24" Duct Opening (front blades parallel to shortest dimension)

with 75% free area