American Standard® Gas/Electric Packaged System, Gold 15 Series, Input BTU Rating: 43000 Btu/hr, Output BTU Rating: 90000 Btu/hr, 208-230 V, 1.98 kW Wattage, 1/20 hp, 830 rpm Rotational Speed, 60 Hz, 1-Phase, Scroll Compressor, 4200 cfm, 16 SEER, 81 % AFUE Rating, Tonnage: 3.5 ton, 2 Stages, R-454B Refrigerant, 71 dB Decibel, Direct Drive, 3/8 in Connection, Tube Connection, 3/4 in FNPT Drain Connection, 42 in L x 59 in W x 45 in H