Lennox 80W51 Pressure Switch 319852-301 this valve body provides a

this valve body provides a fail-safe position to protect critical HVAC equipment during power loss

a different P29 series model must be selected

always match the frequency to the local power supply

Can this unit be installed in both horizontal and vertical air handler configurations

this 208-230V single-phase motor provides the reliable torque and airflow required for consistent performance in Modine hydronic and gas-fired unit heaters

Lennox 80W51 Pressure Switch 319852-301 this valve body provides aThe Lennox 80W51 Pressure Switch is an essential safety component designed for Lennox furnaces and higher efficiency HVAC systems. This differential pressure switch is factory calibrated to a 0. 55" w. c. set point, ensuring reliable monitoring of the combustion blower and venting pressure. As a genuine OEM Lennox replacement part, this switch precisely detects the negative pressure required to safely initiate the furnace ignition sequence, preventing