{"product_id":"westinghouse-626422r-rollout-limit-switch-gas-furnace","title":"Westinghouse 626422R Rollout Limit Switch Gas Furnace","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe WESTINGHOUSE 626422R is a rollout limit switch designed for gas furnace applications. This safety control device monitors burner flame rollout conditions and interrupts furnace operation when abnormal heat is detected outside the combustion chamber. Measuring 3\/4 inch in diameter, it is rated to trip at 155 degrees F and reset at 110 degrees F. Licensed HVAC technicians install this switch as part of routine furnace safety maintenance or when diagnosing nuisance rollout trips caused by blocked heat exchangers, restricted flue passages, or failed ignition sequences.\u003c\/p\u003e\n\u003cp\u003eThis rollout limit switch is suited for residential gas furnace installations where burner compartment overheat protection is required. It mounts directly in the burner area to sense radiant and convective heat from burner flame rollout events. When a rollout condition occurs, the switch opens the control circuit, shutting down the burner to prevent heat damage or a fire hazard. It is a common replacement component during furnace safety inspections and service calls involving repeated limit lockouts.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eRollout protection interrupts furnace operation on detection of abnormal burner flame activity\u003c\/li\u003e\n  \u003cli\u003eTrip temperature of 155 degrees F with reset at 110 degrees F provides defined safety threshold\u003c\/li\u003e\n  \u003cli\u003e3\/4 inch diameter body allows fitment in standard rollout limit mounting locations\u003c\/li\u003e\n  \u003cli\u003eDirect replacement design simplifies swapping on existing gas furnace control circuits\u003c\/li\u003e\n  \u003cli\u003eManual or automatic reset function as designed protects against repeated unsafe restarts\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as an OEM-style replacement rollout limit switch for residential gas furnace systems requiring a 3\/4 inch diameter limit switch rated at 110\/155 degrees F.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation should be performed by a licensed HVAC technician in accordance with local mechanical codes and the furnace manufacturer's service documentation. Shut off all electrical power to the furnace and close the gas supply valve before removing the existing switch or handling wiring. Verify the replacement switch trip temperature matches the original specification before installing. After installation, restore power and cycle the furnace to confirm normal burner operation and proper limit function before leaving the job site.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eType\u003c\/strong\u003e: Rollout Limit Switch\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eApplication\u003c\/strong\u003e: Gas Furnace\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBody Diameter\u003c\/strong\u003e: 0.75 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eReset Temperature\u003c\/strong\u003e: 110 degrees F\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTrip Temperature\u003c\/strong\u003e: 155 degrees F\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eStandard Information\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBrand\u003c\/strong\u003e: WESTINGHOUSE\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 626422R\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"WESTINGHOUSE","offers":[{"title":"Default Title","offer_id":51284154810674,"sku":"626422R","price":26.92,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/309277877.jpg?v=1781069963","url":"https:\/\/voomisupply.com\/products\/westinghouse-626422r-rollout-limit-switch-gas-furnace","provider":"Voomi Supply","version":"1.0","type":"link"}