Lennox 38M78 Ambient Switch 318518-761 Use the tee handle on

Use the tee handle on the aluminum spring cage

while the discharge valve utilizes a 1 3/4-12 UNC connection to ensure proper torque and sealing

maintaining the integrity of the burner manifold

High Pressure Rating: Robust design with a maximum working pressure of 650 psi

ensuring that dirt and scale are held in suspension until purged

Lennox 38M78 Ambient Switch 318518-761 Use the tee handle onThis 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