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The unit utilizes a premium crystal indicator rather than standard paper elements
4-inch track mount relay designed for demanding commercial and industrial HVACR control circuits
check across the two terminals
ensuring the system returns to heating mode efficiently
Lennox 52M71 Ignitor The unit utilizes a premiumThe Lennox 52M71 Ignitor is a high performance silicon nitride furnace igniter designed for precision and durability in Lennox, Armstrong, and Ducane heating systems. As a genuine OEM furnace replacement part, this component ensures your burners fire consistently by reaching the critical ignition temperature rapidly while utilizing less energy than legacy silicon carbide elements. The 52M71 features a robust hot surface ignitor construction, making it