
Model: FDD-AOW
UL classified for installation the grille and damper assembly does not allow for mounting in the plane of the fire barrier with a fire rating of less than 3 hours. This damper may be installed vertically or horizontally in dynamic HVAC systems that continues to run in the event of fire.
Fire Dampers (Static and Dynamic) Installation Instructions
Model ANG Framed Retaining Angles for UL Fire Damper Installations
Model FD-R AND FDD-R Fire Damper Installation Instructions
"Out Of Wall/Partition" Fire Damper and Combination Fire/Smoke Damper Installation Instructions
Sealing in Dampers in Fire and Smoke Rated Walls or Floor Openings
Fabrication and Installation Instructions for Generic Support Mullions
Download Zip of Fire Damper Installation Instructions PDF's
