Cooling and heating device for use with laundry drier, has supercritical heat cycle, and heat exchanger channel for guiding medium parallels in certain direction

摘要

The cooling and heating device has a supercritical heat cycle and a heat exchanger channel for guiding the medium parallels in a direction (A). A gas is guided in heat contact with the channel against the provided direction by the heat exchanger. Transverse bars (5) are provided, which are made of a metal. The heat exchanger channel is made of copper and aluminum, particularly copper. An independent claim is included for a method for operating cooling and heating device, which involves inserting carbon dioxide medium.