Replacement HVAC Part

This replacement pressure switch is engineered for Lennox 24W97 furnace systems and provides reliable safety control for HVAC applications. The unit operates on 24V AC input with a 5A AC resistive rating, making it compatible with standard residential and commercial furnace electrical systems. Featuring single-pole single-throw (SPST) contact form, this pressure switch delivers consistent on/off actuation to ensure proper airflow verification before furnace ignition cycles. The switch is calibrated with a maximum pressure setting of 0.40 inches water column differential, a critical specification that prevents furnace operation when adequate ductwork pressure has not been established. The 1/4-inch FPT (female pipe thread) connection accommodates standard pneumatic tubing used in modern furnace pressure sensing systems. This component is specifically designed for the Lennox 24W95 furnace model and serves as a direct replacement, featuring the manufacturer reference number 101231-01. Ideal for HVAC technicians and facility maintenance professionals, this pressure switch ensures safe furnace operation by monitoring air pressure in the combustion chamber and plenum areas. It is a critical safety component that prevents gas ignition until proper air supply is confirmed. The robust 24V AC design integrates seamlessly into existing Lennox furnace control circuits, requiring no additional wiring modifications. This OEM-equivalent replacement maintains the performance standards of original equipment while offering cost-effective system restoration for heating systems requiring pressure switch renewal.