Airstage, AOUH36LMAH1, Outdoor Unit, High Heat System, Series: AOUH, 33000 Btu/hr Nominal, 38000 Btu/hr Heating, 33000 Btu/hr Cooling, 208/230 VAC, 1 ph, 60 Hz Power Source, 1200, 740, 590, 490 cfm Flow Rate, 11 EER, 17.1 SEER, 10.4 HSPF, R-410A Refrigerant, -5 to 115 deg F Cooling/-15 to 75 deg F Heating, 28, 35, 40 dBA Sound Level, 246 ft Maximum Piping Length, 52-1/2 in H x 38-3/16 in W x 14-9/16 in D Dimensions, Import