
The Honeywell Home M847D-ZONE/U is a reliable, high-performance two-position 24 Vac spring return actuator designed as a direct replacement for the M847D1004 model. It is specifically engineered to provide seamless operation for ARD, EARD, and ZD zone dampers. Featuring a power-closed, spring-open motor design, this unit ensures efficient airflow management in residential and light commercial HVAC systems. With a 30-second power-open cycle and a 10-second spring return, it offers precision and responsiveness for climate control applications. Built for convenience and longevity, the actuator includes simplified adjustable range stops that allow installers to customize the damper range to suit specific environmental requirements. It comes equipped with anti-rotation hardware and drive shaft extensions, facilitating direct mounting onto 7/16-inch diameter coupling-style dampers. With a robust 5-year manufacturer warranty, this Honeywell Home replacement component provides peace of mind and enduring performance for your ductwork automation needs.
Use our free engineering tools to size, convert and diagnose your HVAC system.
Browse airflow ventilation calculators