Combination Fire/Smoke Dampers
Combination Fire/Smoke dampers are low leak damper and actuator assemblies that have passed the UL555 and UL555S test requirements.
F/S-AFM-OB-I & AFM-OB-3-I
Airfoil Blade Modulating Fire/Smoke Damper, Class 1*
Product Overview
Model F/S-AFM-OB-I and AFM-OB-3-I are Air Foil blade ultra-low leakage class I modulating combination fire and smoke damper bear the Underwriters Laboratories labels for both Fire Dampers and Smoke Dampers.
- UL555 and UL555S File #R25410, ULC S112 and S112.1
- Factory Installed Momentary Test Switch (MTS)
- Operating Range 2-10 VDC or 4-20 mA (with resistor)
- Rated to 2,000 fpm and 4" w.g. Higher ratings available upon request
- 1 ½ Hour Rating (less than 3 hours assemblies)
- Optional 3 Hour Rating (fire rating of 3 hours and longer)
- Factory installed sleeves of Various Lengths and Gauges
