the 48-inch armored leads provide extra length for flexible routing

Always inspect the collector box and pressure switch tubing for moisture or cracks before installing the new draft inducer

this assembly ensures consistent pilot flame rectification to the flame sensor

Extended Service Life: The cast bronze body and brass trim withstand high-velocity fluid flow and thermal stress common in HVAC mechanical rooms

The switch is calibrated to a fixed open temperature of 140 degrees F

Lennox 18M62 Pressure Switch 321894-706 the 48-inch armored leads provideThe 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.