3 Hour Smoke Leakage Class I Galvanized Steel Fire/Smoke Damper

This damper automatically closes upon loss of power, and is controlled by a smoke detection system.

Model:	AT1
Depth:	5½"
Orientation:	Vertical or Horizontal
Frame Material:	16 ga. Galvanized Steel
Frame Type:	Hat Channel
Blade Material:	16 ga. Galvanized Steel
Blade Action:	Parallel
Blade Seals:	Silicone
Jamb Seals:	Stainless Steel
Actuator:	EHRD/PHRD
UL Classified:	3 Hour Fire Resistance Smoke Leakage Resistance Class I 250°F or 350°F Approved for Dual Direction Airflow Approved for Dynamic Conditions
AMCA:	Tested and Certified to standard 500D
Max Differential Pressure:	4 in. wg.
Max Velocity:	2000/3000 FPM

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