The Trane CNT07939 Integrated Furnace Control is an electronic control board designed to manage key heating functions in compatible Trane furnaces. It coordinates the ignition sequence, monitors safety switches, and controls components such as the inducer motor and blower to support reliable furnace operation. By processing signals from connected sensors and controls, it helps maintai... https://www.partshnc.com/trane-cnt07939-integrated-furnace-control