DX units typically consist of an outdoor unit that houses the compressor, condenser, and expansion valve, and an indoor unit that houses the evaporator and fan. The refrigerant flows through the outdoor unit, where it is compressed and condensed, and then flows to the indoor unit, where it expands and absorbs heat from the air. The cooled air is then circulated throughout the space by the fan.
DX systems can be used in a variety of applications, including residential, commercial, and industrial settings. They are particularly well-suited for large buildings or spaces with high cooling loads, as they can provide efficient cooling without taking up too much space.