Lennox 52M42 Limit Switch 323055-751 providing superior regulation compared to

providing superior regulation compared to unbalanced alternatives

Natural gas requires larger orifice diameters and different regulator tensioning

Optimized Efficiency: Demand-based logic prevents "ghost" defrost cycles

The box lugs are designed for the primary high-current power leads (line and load)

verify the specific orifice numbering required for the lower flow rates associated with liquid propane

Lennox 52M42 Limit Switch 323055-751 providing superior regulation compared toThe Lennox 52M42 Limit Switch is a critical safety component designed for precise thermal regulation within Lennox residential furnaces. As a genuine Lennox OEM replacement part, this 180 40F auto limit switch is engineered to monitor heat exchanger temperatures, effectively preventing hazardous overheating and potential equipment damage. This furnace high limit switch features a fixed set point of 180F for the opening temperature and an automatic