Lennox 16Y28 Control Board Kit 321894-709 For contractors performing preventative maintenance

For contractors performing preventative maintenance or structural repairs

This model features a 1-1/2 inch male NPT inlet and a 2 inch female NPT outlet

This is the main combined controller (motherboard)

providing a faster response time to temperature changes compared to standard straight bulbs

allowing for reliable operation in demanding environments

Lennox 16Y28 Control Board Kit 321894-709 For contractors performing preventative maintenanceWhen you're troubleshooting high end modulating equipment like the Lennox XC20 or XP20 series, a failure in the inverter logic can put the whole system into a hard lockout. This Lennox 16Y28 Inverter Control Board Kit (OEM part 619452 06) is the direct replacement designed to restore communication between the system's control logic and the variable speed compressor drive. This isn't just a standard Lennox furnace control board; it is a specialized