including air handlers and furnaces

With its adjustable detection level and easy installation design

This specific model is typically supplied as the coil only

reducing call-backs and troubleshooting time

Lennox 73W19 Limit Switch 320734-701 including air handlers and furnacesThe Lennox 73W19 is a critical 155 30V OEM replacement limit switch engineered for precision temperature monitoring in high efficiency furnace applications. As a direct replacement for Lennox 102857 06, this high limit safety control is designed to break the electrical circuit if the heat exchanger temperatures exceed the 155 degree Fahrenheit threshold. This Lennox furnace limit switch prevents thermal stress on the heat exchanger and ensures the