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Optimized Millivolt Output: Delivers a stable 20-28 mV range
It meets multiple technical certifications
Always verify the model number on the unit’s data plate to ensure a match with the manufacturer's cross-reference
75-inch form factor required for modern control panels
Is this rated for A2L refrigerants
Lennox 52M74 Rollout Switch Optimized Millivolt Output: Delivers aThe Lennox 52M74 Rollout Switch is a critical safety component designed for precise over temperature protection in Lennox furnace units and residential HVAC systems. As a Single Pole Single Throw (SPST) switch, this manual reset flame rollout switch is engineered to interrupt the ignition circuit when it detects temperatures reaching the 320 degrees F threshold. This prevents hazardous conditions resulting from heat exchanger failure or flue
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