Lennox 18M62 Pressure Switch 322838-753 spring provides the standard output

spring provides the standard output range required for most gas-fired equipment

ensure your actuator choice matches the high-temperature requirements of your steam loop to maintain long-term mechanical integrity

Pressure switches are safety-rated components

eliminating the need for bracket modifications or lead extensions often encountered with universal alternatives

For service technicians and contractors maintaining intermittent pilot systems

Lennox 18M62 Pressure Switch 322838-753 spring provides the standard outputThe 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.