A 15 ton commercial AC unit is a large-scale air conditioning system that is typically used in commercial buildings, such as office buildings, warehouses, and other large facilities. It is capable of cooling large spaces and providing a comfortable environment for employees and customers. The size of the unit is determined by the amount of cooling capacity it has, which is measured in tons. A 15 ton commercial AC unit is capable of cooling up to 180,000 BTUs of air per hour, which is enough to cool a large area. The unit is typically installed on the roof of the building and connected to a duct system that distributes the cooled air throughout the building. The unit is powered by electricity and uses a refrigerant to cool the air. The unit also includes a condenser coil, evaporator coil, and compressor, which are all necessary components for the unit to function properly. The 15 ton commercial AC unit is a powerful and efficient way to cool large spaces and provide a comfortable environment for everyone.