Rheem® Split-System Heat Pump, Achiever® Plus® UP17 Series, UP1748 Model, 208-230 V Voltage Rating, 28 A Amperage Rating, 194 W Power Rating, 1/5 hp Rating, 60 Hz Frequency Rating, 1 ph Phase, 870 rpm Rotational Speed, 48000 Btu/hr Cooling/Heating BTU Rating, 4000 cfm Rating, 10.5 EER Rating, 17 SEER Rating, 8.5 HSPF Rating, Inverter Compressor Type, R-410A Refrigerant Type, 3/8 in Liquid Line Size, 7/8 in Suction Line Size, 24.2 sq-ft Face Area, 20 FPI Coil Rating, 4 ton Tonnage, 73.8 to 74.3 dBA Sound Level, 3 Number of Stages, Steel, Powder-Coated, 35-3/4 in L x 35-3/4 in W x 39 in H Dimensions