Williams P271100 Flame Sensor the BKT287-1R follows standard 35mm

the BKT287-1R follows standard 35mm top-hat DIN rail dimensions

and the necessary line connections for integration with your gas control valve

This direct OEM replacement ensures robust electrical connectivity between the system controller and the compressor terminals

As a genuine pneumatic control accessory

and condensing units

Williams P271100 Flame Sensor the BKT287-1R follows standard 35mmThe Williams P271100 Flame Sensor is a critical OEM safety component engineered for precise flame rectification in Williams Forsaire counterflow furnaces. This sensor acts as the primary safeguard for the ignition sequence, utilizing a heat resistant probe to detect the presence of a burner flame. By communicating a microamp signal back to the integrated furnace control, it ensures that the gas valve remains energized only when a steady flame is