The York S1-025-38950-000 Flame Sensor is a critical safety component designed for furnace ignition systems

This non-relay type unit operates on a pneumatic control signal to ensure the valve stem position corresponds exactly to the controller output

maintaining proper static pressure within the heat exchanger

secured via a set screw for a 1/2" keyed or flat-surface motor shaft

Common Questions & Technical Support Can the VT3211 be used for steam applications

Reznor 87434 Ventor Motor Freon The York S1-025-38950-000 Flame SensorThe Reznor 87434 Ventor Motor is a critical 115V replacement component engineered specifically for Reznor unit heaters. Operating at a standard 115 volt single phase input, this draft inducer motor is designed to pull combustion gases through the heat exchanger, ensuring proper venting and preventing pressure switch trip outs. As a direct mechanical match for specific Reznor power vented units, it maintains the necessary CFM output and static pressure