Lennox 38M78 Ambient Switch 318423-701 The double pole single throw

The double pole single throw configuration allows for simultaneous control of multiple electrical circuits

This 10x9x5/8 blower wheel features a clockwise (CW) rotation and is constructed from heavy-duty galvanized steel to withstand the high static pressures common in modern HVAC systems

Key Benefits for Technicians: Direct Retrofit Compatibility: Seamlessly replaces the discontinued Veris PXPXX02S without requiring extensive panel modifications

This adapter is essential for maintaining the 90 lb force output required in modern hydronic balancing

While the wattage and voltage may match

Lennox 38M78 Ambient Switch 318423-701 The double pole single throwThis 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