DX units are types of air conditioning systems that directly cool the air supplied to a building. They come as split or packaged systems.
Continue ReadingDirect expansion, or DX, air conditioning units feature evaporators that are in direct contact with the supplying air. The evaporator absorbs heat from the air supply by expanding the refrigerant, which then flows to a compressor. The compressed refrigerant moves to a condenser, releasing the heat absorbed from the air supply. The final stage of the cycle is the flow of the condensed refrigerant back to the evaporator.
DX units take up less space than centralized cooling systems and can be less costly to install. They come in two types: split or packaged.