Armstrong Furnace R37520B002 Rollout Switch For technicians troubleshooting a "limit

For technicians troubleshooting a "limit open" fault code

and 503344

including 22L62 and 22L75 models

F for the opening (trip) point and a 40

5" depth and 0

Armstrong Furnace R37520B002 Rollout Switch For technicians troubleshooting a "limitThe 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