What is the definition of a minisplit air air conditioning system? In short, a minisplit air conditioning is a type of air conditioning system which is comprised of two parts: the inside unit, which is installed in the room or area to be cooled, and the outside unit, which is installed outside the building. The inside unit is responsible for cooling the air within the room, while the outside unit is responsible for taking in the hot air and transferring it away from the building. This type of air conditioning system is often seen in homes and businesses, as it is a much more efficient way to cool a space than a traditional air conditioning system. The advantages of a minisplit air air conditioning system include lower energy bills, easier installation and maintenance, and greater flexibility in terms of the size and location of the cooled space. Furthermore, minisplit air air conditioning systems tend to be quieter than traditional air conditioning systems, making them ideal for use in homes and businesses alike.