4" Horizontal/Vertical Mount Fire Damper 2634-32X8 Step Down Ceiling Diffuser 1 1/2 hour fire resistance

1 1/2 hour fire resistance rating

Standard Features * T-Bar lay-in panel with hinged perforated face * Galvaneal steel 2x2 panel with seismic hangers * Spring push release for removal of perforated face * Round No Labor Collar sizes: 6-10"

Standard Features * Fixed bar blades parallel to 1st dimension given *

1” rim size (2” larger than nominal duct size / order size)

2500/2600 Installation Instructions

4" Horizontal/Vertical Mount Fire Damper 2634-32X8 Step Down Ceiling Diffuser 1 1/2 hour fire resistanceh3. Standard Features * 2633 Square or rectangular out of airstream fire damper for vertical mount only. * 2634 Square or rectangular Spring actuated (6) out of airstream fire damper for horizontal or vertical mount. * UL and California State Fire Marshall approved * 4 1 4" standard frame style * Maximum dimension 60w, 52h * Interlocking steel roll formed blade (3) with roll formed frames (1) * Blade lock (5) * Damper manufactured from corrosion