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preventing leaks and premature wear in high-temperature loops
providing a reliable solution for restoring heating performance in Armstrong Air HVAC units
40" WC switch is calibrated for Size 4 units
providing ample reach for various cabinet configurations in residential and light commercial units
ZoneFirst AOBD-16X8 Damper Refrigerant preventing leaks and premature wearThe ZoneFirst AOBD 16X8 is a professional grade automatic opposed blade damper designed for rigorous HVAC zoning system applications. Featuring a 16" wide by 8" high frame, this motorized rectangular damper utilizes an opposed blade design to minimize air turbulence and provide superior linear airflow control compared to standard bypass dampers. The unit is powered by a high torque 24VAC power open power closed actuator, ensuring positive seal and