This model is an auto-reset limit switch

including the S8402-114

provided the corresponding flare nuts and tubing are correctly rated

This unit is CSA certified to ANSI Z21

The 32001632-001/U model is an identical functional match

Reznor 102997 Siphon Nozzle 30067439-890 This model is an auto-resetThe Reznor 102997 Siphon Nozzle is a critical OEM replacement part engineered for precise fuel atomization in Reznor waste oil heaters. Built by Delavan (Part Number 30609 5 or 30609 7), this all brass component utilizes compressed air to lift and atomize fuel, creating a stable, high efficiency combustion flame. As a veteran grade burner nozzle, it is optimized for high viscosity fuels, ensuring a consistent spray pattern that minimizes soot buildup