Lennox 73K19 Limit Switch 323269-701 This HVAC zone control board

This HVAC zone control board is a robust choice for technicians looking to resolve temperature stratification in multi-level homes or light commercial spaces using a single HVAC unit

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

the E5-16-03 features a dual-stage filtration design: the first stage uses multi-layered fiber media and a screen for bulk contaminant removal

a dedicated horizontal drain pan must be used

Lennox 73K19 Limit Switch 323269-701 This HVAC zone control boardThe 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