Manufacturer Name: Trane Product Number: CNT7639 OEM Part Number: CNT7639 Product Description: Control Board Weight:0.58lbs/263.08g The Trane CNT7639 Control Board is an essentialpart of Trane HVAC systems. These signals are information about desired temperature settings and current conditions. The CNT7639 interprets this data and turns that into commands... https://www.partshnc.com/cnt7639-trane-control-board