Samsung Heat Pump Condensing Unit, DVM S Eco Series, 208-230 V Voltage Rating, 29 A Amperage Rating, 60 Hz Frequency Rating, 1 ph Phase, 48000 Btu/hr, 54000 Btu/hr BTU Rating, 3885 cfm Rating, 11.5 EER Rating, 21 SEER Rating, 10.7 HSPF Rating, Twin BLDC Rotary Compressor Type, R-410A Refrigerant Type, 3/8 in Liquid Line Size, 5/8 in Suction Line Size, 50 A Fuse Rating, Inverter Drive Type, 4 ton Tonnage, 51 dB, 53 dB Sound Level, Steel, Galvanized, 0 to 118 deg F, -13 to 75 deg F Temperature Rating, 47-5/8 in H x 37 in W x 13 in D Dimensions