... variable speed Refrigerant: R134a Sensorless type brushless DC electric scroll compressor:1.Input voltage: (12VDC), 24VDC,48VDC,72VDC and 96VDC 2.External ... ,Automatic reset,Reversed polarity protection........ 3.Displacement: 36cc/rDischarge pressure: 1.5MPa. Suction pressure: 0.3MPa.Superheat: 10oC.Subcooling: 5oCCooling capacity ...