Armstrong Furnace R37520B002 Rollout Switch Hydronic systems subject seals to

Hydronic systems subject seals to extreme temperature cycles and chemical treatments

Key Benefits for HVAC Professionals

F for the opening (trip) point and a 40

Can I trim this 36-inch cable to a shorter length

including 22L62 and 22L75 models

Armstrong Furnace R37520B002 Rollout Switch Hydronic systems subject seals toThe 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