Lennox 50A66-123-04 Furnace Control Board for Single-Stage HVAC Systems Don't add Part Number QSPD2A065P Subcategory Low

Part Number QSPD2A065P Subcategory Low Voltage Plug-On Surge Protectors

or floating point operation

The General Electric THQL2150 is a 50-amp

It features a built-in communicator

Lennox 50A66-123-04 Furnace Control Board for Single-Stage HVAC Systems Don't add Part Number QSPD2A065P Subcategory LowDescription The Lennox 50A66 123 04 is an OEM furnace control circuit board designed to manage critical functions in single stage residential heating systems. This Lennox branded part orchestrates ignition, safety monitoring, and fan control to ensure consistent and safe furnace operation. Its primary application is as a direct replacement control board for compatible Lennox and White Rodgers furnaces. Technical Specifications Condition New Never Used