A condensing unit is a key component in a refrigeration or air conditioning system that helps to remove heat from the building or space that it is serving. It typically consists of a compressor, a condenser coil, and a fan. The compressor pressurizes and circulates refrigerant gas through the system, while the condenser coil releases the heat absorbed by the refrigerant to the outside air with the help of the fan.

In simpler terms, a condensing unit helps to convert refrigerant gas back into a liquid state by cooling it down. The cooled refrigerant can then be used to absorb heat from inside the building or space, and the cycle repeats.

Condensing units are available in various sizes and capacities, depending on the cooling needs of the space you are serving.