Resideo VU843A1020 Actuator 320819-301 This is a maintained selector

This is a maintained selector switch

Common Questions What is the difference between the 750SV and the 750P models

Is the SKD82

Rugged Construction: Built with industrial-grade materials to withstand the thermal cycles and environmental demands typical of mechanical rooms

Does this unit replace the older S1-024-34589-000 model

Resideo VU843A1020 Actuator 320819-301 This is a maintained selectorThe 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.