Lennox 73K19 Limit Switch 323269-701 sea-level units often require different

sea-level units often require different sizing to achieve the full rated BTU capacity

Sediment Resistance: The above-drain seat design prevents debris from fouling the seal

a dedicated horizontal drain pan must be used

System Protection: Optimized condensate management ensures water is effectively channeled to the secondary drain

Lennox 73K19 Limit Switch 323269-701 sea-level units often require differentThe Lennox 73K19 is a technical grade L160 30F Limit Switch engineered for critical temperature oversight in residential and commercial HVAC furnace units. This OEM disc style limit control features a normally closed (NC) circuit configuration and utilizes an automatic reset mechanism for system continuity. As a primary safety component, the switch is calibrated to open the electrical circuit when the sensed temperature reaches its high limit cutout