Schneider Electric (Viconics) R850V-8 Controller 322838-754 it provides consistent ignition in

it provides consistent ignition in sealed combustion environments

75" WC to ensure accurate airflow verification and burner safety

allowing for a "drop-in" swap without repiping or rewiring the entire circuit

For service technicians troubleshooting a furnace short cycling issue

Integrated Occupancy: The factory-installed PIR on board eliminates the need for external occupancy sensors

Schneider Electric (Viconics) R850V-8 Controller 322838-754 it provides consistent ignition inThe Schneider Electric (Viconics) R850V 8 is a professional grade 8 stage step controller engineered for precise modulation of multi stage HVAC systems, specifically electric duct heaters and boilers. This microcomputer based unit utilizes an integrated vernier stage to provide seamless proportional control from 0 to 100% capacity, eliminating the large temperature swings often found in traditional on off staging. Designed for flexible integration, it