Lennox 18M62 Pressure Switch 319848-301 This is a manual reset

This is a manual reset model

The Single Pole Single Throw (SPST) contact configuration ensures reliable circuit interruption or initiation when pressure thresholds are reached

Does this tube require an end plug

500 BTU capacity and is optimized for use with R-22 refrigerant

The Trane VAL8641 TXV is a high-precision 3-ton thermal expansion valve engineered specifically for R410A refrigerant systems

Lennox 18M62 Pressure Switch 319848-301 This is a manual resetThe Lennox 18M62 Pressure Switch is a critical dual stage furnace component designed for precise combustion air proving in high efficiency heating systems. As an OEM Lennox replacement part, this switch is factory calibrated to monitor the static pressure produced by the inducer motor, ensuring the system only proceeds to ignition when proper venting is established. This 2 stage pressure switch features a dual level actuation pointtypically set at 0.