4 1/4" Vertical Mount Fire Damper 2633-44X44 Step Down Ceiling Diffuser 955 Series Submittal

955 Series Submittal

955 Series Engineering/Performance Data

Standard Features * 1" rim size (2" larger than nominal duct size) * 14 gauge steel * 1305: 1/2" lattice opening

2750 Install Instructions

4 1/4" Vertical Mount Fire Damper 2633-44X44 Step Down Ceiling Diffuser 955 Series Submittalh3. 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