Lennox 36W49 Pressure Switch 319852-301 5 inches long and is

5 inches long and is constructed from durable stainless steel to resist corrosion and thermal stress

Ensure the furnace is properly grounded and that the transformer is providing steady 24V secondary power during testing

The O10-1831 utilizes a Single Pole Single Throw (SPST) switch that opens on a pressure drop (Open Low) to protect equipment

This #10-32 x 1/2" slotted hex screw is designed to offer maximum torque retention in environments subject to constant thermal expansion and mechanical vibration

The York S1-026-32088-702 is a precision-engineered centrifugal fan component essential for maintaining optimal airflow in residential furnace and air handler assemblies

Lennox 36W49 Pressure Switch 319852-301 5 inches long and isThe Lennox 36W49 Pressure Switch is a critical safety component designed for specific Lennox furnace models to monitor the negative pressure generated by the inducer motor. This SPST furnace pressure switch is factory calibrated to a 0. 55" WC set point, ensuring the combustion process only initiates when proper venting and drafting are established. Constructed with a durable diaphragm and high grade electrical contacts, this direct replacement