Mitsubishi Electric Heat Pump, P Series, 208 to 230 V, 37 A, 4270 W Power, 60 Hz Frequency, 1 ph, Heating BTU Rating: 54000 Btu/hr, Cooling BTU Rating: 42000 Btu/hr, Heating CFM Rating: 3320 cfm, Cooling CFM Rating: 3320 cfm, 9.8 EER, 15.3 SEER, 11 HSPF, 5/8 in OD Flared Gas Connection, DC Inverter Driven Twin Rotary Compressor, R-410A Refrigerant, 3/8 in Liquid Line, 5/8 in Suction Line, 44 A Fuse, Heating Sound Level: 51 dBA, Cooling Sound Level: 49 dBA, Wall Mounting, Munsell, Heating Operating Temperature: 10 to 70 deg F, Cooling Operating Temperature: 0 to 115 deg F, 14-3/16 in Overall Length, 41-5/16 in Overall Width, 52-11/16 in Overall Height