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BMS Controls Glossary

Condensing Unit

A condensing unit is a self-contained outdoor unit that is typically used in commercial and industrial applications to cool a space. It is composed of a compressor, condenser, evaporator, and expansion valve, all of which work together to provide cooling. The compressor compresses the refrigerant, which then passes through the condenser where it is cooled and condensed into a liquid. The liquid refrigerant then passes through the evaporator, where it absorbs heat from the air and is converted back into a gas. Finally, the gas passes through the expansion valve, where it is cooled and returned to the compressor to begin the cycle again. The condensing unit is an important part of any cooling system, as it is responsible for providing the cooling power necessary to keep a space comfortable.