3/4" ODF Suction, 1/2" ODF Discharge, 200 VAC 50 Hz/208/230 VAC 60 Hz 1-Phase, 42000 BTU/Hr, 11.1 EER, Polyolester Oil, Reciprocating, Hermetic, Fixed Speed, 6th Generation, Compressor for High Temperature Air Conditioner/Heat Pump