A commercial condenser unit is a type of air conditioning system designed for larger commercial buildings. It is typically a large, outdoor unit that is connected to an indoor air handler. The condenser unit is responsible for cooling the air inside the building by removing heat from the air and transferring it outside. The condenser unit is made up of several components, including a compressor, condenser coil, expansion valve, and fan. The compressor is responsible for compressing the refrigerant and transferring it to the condenser coil. The condenser coil is responsible for releasing the heat from the refrigerant and transferring it outside. The expansion valve is responsible for controlling the flow of refrigerant and the fan is responsible for circulating the air inside the building. Commercial condenser units are highly efficient and can help to reduce energy costs in commercial buildings.