Resideo VU843A1020 Actuator 320788-702 Failure is typically caused by

Failure is typically caused by excessive flame impingement

Replacing a failing draft inducer with the Reznor 71529 ensures your unit maintains precise airflow requirements

Designed for durability in high-cycle residential and commercial applications

Durable construction resists thermal fatigue in high-cycle commercial environments

Robust Build: Engineered for 1-stage 50K-125K BTU systems to withstand high-temperature flue gases and continuous run cycles

Resideo VU843A1020 Actuator 320788-702 Failure is typically caused byThe Resideo VU843A1020 is a heavy duty fan coil actuator engineered for commercial hydronic systems requiring reliable two position control. Operating on 24 Vac, this spring return actuator is designed for seamless integration with VU52, VU53, and VU54 series valve bodies. Featuring an SPST controller connection, the unit provides a full 22 degree stroke with a 15 second motorized timing and a rapid 4 second spring return for precise flow management.