Enhanced System Safety: Functions as a primary or secondary low water cut-off (LWCO) to protect the pressure vessel

While the flare fitting provides the primary mechanical seal

For Natural Gas (NG) applications

the S1-029-25430-000 with harness maintains the factory-certified safety protocols of your equipment

Lennox 10W05 Limit Switch 322027-701 Enhanced System Safety: Functions asThe Lennox 10W05 Limit Switch is a critical OEM replacement part designed to ensure the safe thermal regulation of your furnace or air handler. Engineered for high reliability applications, this L150 20F temperature limit switch functions as a fail safe by monitoring the internal heat within the heat exchanger or plenum. Once the air temperature reaches its 150F cutout point, the internal contacts open to break the heating circuit, preventing