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The Fresh Air Damper (FAD) is a 24VAC power-open, power-close motorized air damper designed for installation in a fresh air ventilation duct connected to an outdoor air intake hood and a duct fan or the HVAC return plenum, to control the flow of fresh air into the home. The FAD is typically controlled by the HHSC or HHSC+ Ventilation Control as part of the Healthy Home System™ to meet ASHRAE 62.2 and other fresh air ventilation codes and standards, but may also be used in a stand-alone application for either passive or fan-induced fresh air for ventilation or makeup air applications.

  • Power-Open, Power Close
  • Very low power requirement
  • Very low air flow resistance
  • Stainless steel body and gate
  • Tear-resistant closed-cell foam rubber seal tested 500K+ cycles
  • Seal flammability meets FMVSS-302
  • Gas Vent Damper motor and circuit board certified 100K+ cycles
  • Patented Damper Monitor feature detects and diagnoses failure (with HHSC+ ventilation control)

Model FAD-6 Includes:
  • FAD damper, 4” size
  • 3-wire harness with modular damper connector
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