American Standard® Heat Pump Packaged Unit, Gold 15 Series, 4 ton Nominal Capacity, 48000 Btu/hr Cooling, 42000 Btu/hr Heating, 208-230 V, 31 A, 2.28 kW Wattage, 1/6 hp, 60 Hz, 1-Phase, 830 rpm Rotational Speed, Scroll Compressor, 1600 cfm, 15 SEER, Convertible, FNPT Connection, 3/4 in Connection, R-454B Refrigerant, 2 Stages, 45 A Fuse Rating, 72 dB Sound Level, Direct Drive, 23.57 sq-ft Face Area Outdoor, 5 sq-ft Face Area Indoor Coil, 24 FPI Outdoor, 15 FPI Indoor Fins per Inch, Steel, Finish: Enamel, 55 to 115 deg F, 52 in H x 62 in W x 47 in D