For fail-safe operation

Enhanced Lead Length: 18-inch leads provide additional reach for easier termination in complex wiring configurations

preventing the offset errors common with universal aftermarket thermistors

What are the signs that this booster assembly needs replacement

Lennox 38M78 Ambient Switch 324846-701 For fail-safe operationThis Lennox 38M78 Ambient Switch is a critical pressure actuated component designed for head pressure control in low ambient cooling applications. Engineered for precision, this low ambient pressure switch ensures reliable operation of your HVACR system when outdoor temperatures drop, preventing compressor slugging and maintaining the necessary pressure differential for efficient thermal transfer. The Lennox 38M7801 features a specific cut in point of