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945 Series Engineering/Performance Data
Standard Features * 2533 - Square or rectangular for vertical mount only
* UL and California State Fire Marshall approved * 4-1/4" standard frame style * Maximum dimension 60w
Standard Features * Removable core * Available in five air patterns * 22 gauge steel flush core provides uniform air distribution * Square to round No Labor Collar (6" thru 18") * 2x2 galvaneal steel panel with seismic support holes * Soft White Options * 700DVD D - steel multi-shutter damper * 700DVD O - opposed blade damper * 700DVD FR - U
Allows for 4-way airflow adjustment
Pressure Relief Horizontal Air Up 3520-24X20 Smoke-Fire Damper 945 Series Engineering/Performance Datah3. Standard Features * 3510 Vertical mount * 3520 Horizontal mount air up * 3530 Horizontal mount air down * Designed to open with negative or positive pressures for intake or exhaust air * Felt edge blades to hold noise to a minimum * Aluminum construction * Blade to blade linkage * 1 4" pivot pins in nylon busings * Maximum size 24 x 24 * Mill finish h3. Options * Sleeve variations * Mounting flange * Adjustable counter balance to adjust various
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