The Trane EXC02012 Aluminum Heat Exchanger is a replacement component designed to transfer heat efficiently within compatible Trane HVAC equipment. It works by allowing heat to move between air or fluid streams while keeping the circuits separated, supporting proper temperature control and system operation. This heat exchanger is used in compatible furnaces, air handlers, and commerci... https://www.partshnc.com/trane-exc02012-aluminum-heat-exchanger