Air conditioning, heating, ventilating, cooling, humidifying, dehumidifying, and drying equipment, unit apparatus for treating, circulating and processing air units of all kinds for industrial and domestic use; and parts thereof including refrigerant condensing units for air conditioning comprising a refrigerant compressor, the refrigerant compressor driving means and the refrigerant condenser unit connected in refrigerant flow relationship with the refrigerant compressor and parts thereof; refrigerating apparatus of all kinds and parts thereof including refrigerant condensing units comprising refrigerant compressor driving means, refrigerant condensers, filters and expansion valves being parts of refrigerating apparatus