Armstrong Furnace R37520B002 Rollout Switch 9% pure wrot copper (UNS

9% pure wrot copper (UNS C12200) for excellent corrosion resistance

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Key Benefits for HVAC Professionals

For technicians troubleshooting a "limit open" fault code

5" depth and 0

Armstrong Furnace R37520B002 Rollout Switch 9% pure wrot copper (UNSThe 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