Window air conditioner - a type of air conditioner, made in the form of a monoblock, installed in a window or a special opening.
Air conditioners of the Baku plant (USSR) BK-1500, BK-2000, BK-2500.
Conditioners are reliable, differ in big weight. So far, work properly. Air conditioners after 1990 release (BK-1800, BK-2300) are famous for low reliability due to the shortcomings of the electrical circuit.