the HH core is optimized for suction line clean-up

or oversized ductwork restricting static pressure

Key Benefits: Burnout Cleanup Excellence: The HH-style core uses activated charcoal to remove harmful waxes and varnish caused by high-temperature motor failures

System Isolation: Enables efficient pump-down procedures

Field Controls 46487001 Vent Damper Refrigerant the HH core is optimizedThe Field Controls 46487001 Vent Damper (Model GVD 5PL) is a critical component for optimizing gas fired heating systems. As a 5 inch automatic vent damper, it is engineered to mitigate standby heat loss by sealing the flue when the burner is off. This 24VAC 60Hz unit features a robust stainless steel construction, ensuring long term reliability in residential and light commercial applications. It serves as a direct replacement for Honeywell