Ac units can be found in just about all sizes and styles. A person's indoor system works by transporting air flow through the interior evaporator coil, and heat is taken in to the refrigerant in this particular coil. This refrigerant is then distributed outside, where the heated temperature is exhausted by using a fan blasting across the outside condenser coil. An A/C unit does not create cold air, it takes away heat in the air. For more information please click here