Abstract: A cooling unit for a building area or the like and a compressor control for the cooling unit, the latter including a compressor for compressing gaseous refrigerant and having temperature sensing means mounted on the compressor housing and coacting with heater means, for causing actuation of the compressor upon the rise of temperature of the housing to a predetermined point, with the temperature sensing means being operative to maintain the compressor in de-energized condition until the temperature of the compressor housing rises to said point, a heater means coacts with the compressor housing for applying heat thereto to cause heating of the compressor and resultant vaporization of liquid refrigerant in the compressor.