an air-conditioning unit having the means for ventilation, air circulation, air cleaning and air cooling, and the controls thereof, in the same cabinet with the condensing unit, a factory-made assembly consisting of a fan, an evaporator, and a condensing unit or absorption refrigeration unit, with ... enclosure, interconnecting piping and wiring, and ... control and safety devices, complete air conditioning unit including refrigeration compressor, cooling coils, fan, filter, automatic controls, etc. assembled into one casing