Corrosion Resistance: The epoxy-painted spider and aluminum construction provide longevity against moisture and chemical exposure in coastal or industrial areas

Manual Reset Safety: Prevents automatic equipment restarts after a pressure trip

Durable Construction: Built with high-quality materials to withstand high temperatures and prevent internal manifold leaks

or L91 series Pressuretrols

Lennox 47L19 Limit Switch 321894-706 Corrosion Resistance: The epoxy-painted spiderThe Lennox 47L19 Limit Switch is a critical OEM replacement part designed for precise thermal regulation in residential and commercial furnaces. As an auto reset limit switch, this 36T series disc style component operates on a normally closed circuit, ensuring the burner assembly remains functional only within safe operating parameters. When the internal plenum temperature reaches the 185F high limit threshold, the switch opens, breaking the circuit