Lennox 23G38 Limit Switch This specific model is designed

This specific model is designed for a 120V primary input

The default flow orientation is determined by the actuator

For veteran HVAC contractors servicing hydronic systems

As a liquid line filter drier

Lennox 23G38 Limit Switch This specific model is designedAs a core safety component for critical heating applications, the Lennox 23G38 Limit Switch provides essential thermal protection by monitoring the internal temperature of the heat exchanger. This OEM Lennox part is a fixed temperature L180F 40F auto limit switch, engineered to open the electrical circuit at 180F and automatically reset when the temperature drops to 140F. This high limit safety control prevents equipment damage and potential fire