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or signs of flame impingement on the cast iron sections
typical for most residential and commercial control circuits
this thermostatic expansion valve regulates flow based on evaporator load
ensuring reliable fluid control in industrial HVACR systems
Lochinvar & A.O. Smith 100208181 Rollout Switch 321894-706 or signs of flame impingementThe Lochinvar & A. O. Smith 100208181 Rollout Switch is a critical OEM replacement part designed for high efficiency boilers and water heaters. As a 280F Manual Reset Rollout Switch, it serves as a primary thermal safety control, monitoring the burner area for flame rollout conditions. When temperatures exceed the 280 degree Fahrenheit threshold, the 100208181 switch breaks the electrical circuit, immediately shutting down the combustion process to
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