A packaged air conditioning unit is a self-contained system that combines the functions of an air conditioner, heater, and sometimes a heat pump into one unit. This type of unit is typically installed outside of a building, such as on a roof or balcony, and is connected to the interior of the building through ductwork. The packaged air conditioning unit is an efficient way to cool and heat a building without the need for multiple units and the associated installation costs. It is also ideal for buildings with limited space, as the unit is typically much smaller than a traditional split system. The packaged air conditioning unit is powered by electricity and is typically quieter than a split system. It also offers more flexibility in terms of installation, as it can be placed in a variety of locations. Additionally, the packaged air conditioning unit is more energy efficient than a split system, as it does not require additional ductwork or other components.