2" Vertical Mount Fire Damper 2533-18X10 Smoke-Fire Damper Spiral pipe diameter must be

Spiral pipe diameter must be 4” larger than the width of the grille

1/2" spacing dual angular louvers

PERFORMANCE DATA 915 Series Engineering/Performance Data

T-Bar Fixed Core Step Down Diffuser

055 T6) surface mount diffuser * Nylon bushings for easy adjustment and quiet setting of airfoil blades * Countersunk mounting holes for flush appearance with color matching Phillips posi-drive screws * Single deflection diffuser with adjustable airfoil blades * Airfoil blades are parallel to longest dimension * Allows 2-way air deflection on one plane * Soft White Options * 901 O - with recessed screwdriver operated opposed blade damper * 1331 and 1332 Series - stainless steel single deflection * Fractional

2" Vertical Mount Fire Damper 2533-18X10 Smoke-Fire Damper Spiral pipe diameter must beh3. Standard Features * 2533 Square or rectangular for vertical mount only. Maximum dimension 48w, 41h. * 2534 Square or rectangular spring actuated (6) for horizontal or vertical mount. Maximum dimension 41w, 29h. * UL and California State Fire Marshall approved * 2" thinline frame * Interlocking steel roll formed blade (3) with roll formed frames (1) * Blade lock (5) * Damper manufactured from corrosion tested galvanized mild steel (G 90) * Self