

The Integrated Furnace Control (Part Number: 50M56U-801) is designed for Single Stage Applications, supporting 2 or 3-Speed PSC Blower Motor with 120V HSI. It features a Diagnostic LED, Push-Button Fault Recall, and Dipswitches for easy blower delay configuration. Ignition Trial Time is 4 seconds with 4 retries and a prepurge period of 15 seconds. This control replaces Lennox 81W03, 56W19, 94W83, and 74W03 service platforms.