4" Round Horizontal/Vertical Fire Damper 2650-7 Smoke-Fire Damper Submittal Drawing

Submittal Drawing

Square collar designed for 22" x 22" duct

53% free area * 1306: 3/4" lattice opening

Standard Features * Step-down design with four-way air diffusion * Countersunk mounting holes for flush appearance with color matching Phillips posi-drive screws * Step-down feature allows for uniform airflow distribution * Soft White Options * 100 - diffuser only (no damper) * 100 D - diffuser with steel multi-shutter damper * 100 O - diffuser with steel opposed blade damper * No Labor Collar - Square to round * Tamper proof screws * Standard Color

Uniform 360 degree discharge pattern

4" Round Horizontal/Vertical Fire Damper 2650-7 Smoke-Fire Damper Submittal Drawingh3. Standard Features * 2649 Round damper for vertical mount only. Available 4" thru 52" round. * 2650 Round spring actuated (6) damper for vertical or horizontal mount. Available 4" thru 52" round. * UL and California State Fire Marshall approved * 4 1 4" standard frame style * 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 locking