You must always match the temperature ratings (L120-20) of the existing bimetal limit switch to ensure the furnace operates within its designed safety parameters

this specific model features a 24VAC primary voltage

this component is the direct successor to the legacy B945672

Common Questions What does "Normally Closed" mean for this specific blower relay

This is the aftermarket dual probe assembly designed to fit into the existing boiler manifold

Reznor 201962 Limit Switch You must always match theThe Reznor 201962 Limit Switch is a high temperature safety control engineered for precision in commercial HVAC unit heaters. This OEM Reznor 201962 component features a calibrated 170 250F temperature range and an auto reset function, ensuring the system resumes operation once internal temperatures return to a safe threshold. Designed for industrial gas fired heaters, it serves as an essential SPST limit control, specifically replacing worn or