Yes, an Air Handling Unit (AHU) does have a compressor. The compressor is a key component of the AHU, as it is responsible for compressing the refrigerant and circulating it throughout the system. The compressor is typically located at the bottom of the AHU and is connected to the condenser, evaporator, and other components. The compressor is powered by an electric motor and is responsible for maintaining the pressure and temperature of the refrigerant.