The Trane CNT08120 Integrated Furnace Control is an electronic control board designed for compatible Trane S9V2 two-stage, variable-speed gas furnaces. It manages essential heating operations by coordinating the gas valve, ignition system, blower motor, safety sensors, and furnace operating cycles. Its integrated diagnostic capabilities help technicians identify system faults and simp... https://www.partshnc.com/trane-cnt08120-integrated-furnace-control-s9v2-2-stage-variable-speed