ZoneFirst AOBD-18X10 Damper Freon Common Questions Is the 3900-2008-000

Common Questions Is the 3900-2008-000 compatible with older 3900-2011-000 series heaters

While and primarily utilized as an evaporator fan pack

designed to interrupt the control circuit when discharge pressures exceed safe operating limits

it ensures a permanent

OEM Compatibility: Designed for direct fitment in Rheem and Ruud gas valves

ZoneFirst AOBD-18X10 Damper Freon Common Questions Is the 3900-2008-000The ZoneFirst AOBD 18X10 is a heavy duty 18x10 rectangular damper engineered for precise airflow management in residential and light commercial zoning systems. Utilizing an opposed blade design, this unit ensures superior air distribution by counter rotating blades to minimize turbulence and static pressure compared to standard parallel configurations. The damper is driven by a high torque 24Vac power open power closed actuator mounted on the 10 inch