FSD36G "FRONT ACCESS" 1-1/2 hr Combination Fire/Smoke Damper

The FSD36G Combination Fire/Smoke Damper is both UL555 and UL555S Classified. It is rated as a 1-1/2 hour fire damper and a Leakage Class II Smoke damper. It features:
  • Factory designed to accept a 1 3/4" grille and 3/4" front flange shipped loose.
  • Triple vee groove blades.
  • Rated to 2,000 fpm and 4" w.g.
  • UL approval for dual directional airflow.
  • Failsafe design, which enables the damper to automatically assume the desired position when fire or smoke (if smoke detector is present) interrupts operational power.
  • Controlled closure in not less than 3 seconds and no more than 15 seconds to prevent HVAC and duct damage.
  • Automatic remote reset after test, smoke detection or power failure conditions.
  • Galvanized steel construction.
    Note: Consult Ruskin if wall is less than 6" thick
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Region availability

North America
United States