the unit features screw terminals with pressure clamp washers that facilitate secure wiring for two #12 AWG conductors per terminal

or obstructed vent piping causing flames to "roll out" toward the burners

While it may share dimensions with some Armstrong or AirEase equipment (which fall under the Lennox International umbrella)

increasing fail-safe reliability

or replace valve packing to maintain a proper seal

Lennox 55W64 Pressure Switch the unit features screw terminalsThe Lennox 55W64 High Pressure Switch is an essential safety and operational component designed for high pressure monitoring in residential and commercial HVAC systems. This genuine OEM replacement part ensures your equipment operates within safe parameters, specifically engineered to actuate at 590 PSI and features an automatic reset at 418 PSI. As the direct replacement for discontinued models 30W18 and 30W1801, this switch maintains the integrity