Armstrong Furnace R37520B002 Rollout Switch this kit is essential for

this kit is essential for preventing combustion gas leakage and maintaining the atmospheric integrity of the burner assembly

critical for protecting the boiler block from dry-fire conditions

If your compressor requires high starting torque (HST) for expansion valve systems

ensuring reliable performance in demanding commercial HVACR applications

Armstrong Furnace R37520B002 Rollout Switch this kit is essential forThe Armstrong Furnace R37520B002 Rollout Switch is a critical safety component designed for precise thermal monitoring within residential gas furnaces. Engineered for high temperature sensitivity, this manual reset rollout switch is calibrated to trigger at 225 degrees F, ensuring the system shuts down if flame rollout or excessive heat is detected outside the combustion chamber. Utilizing a Single Pole Single Throw (SPST) configuration, this limit