Mitsubishi Electric Single-Zone Heat Pump Outdoor Unit, Model: MSZ-GS, 208/230 V, 1100 W, 1330 W, 1600 W Power, 60 Hz Frequency, 1 ph, Heating BTU Rating: 12100 Btu/hr, 18000 Btu/hr, Cooling BTU Rating: 14000 Btu/hr, Heating CFM Rating: 753 to 1152 cfm, Cooling CFM Rating: 584 to 1166 cfm, 12.75 EER, 21 SEER, 11 HSPF, Flared Connection, R-410A Refrigerant, 1/4 in Liquid Line, 1/2 in Suction Line, 15 A Fuse, Heating Sound Level: 51 dBA, Cooling Sound Level: 49 dBA, Wall Mounting, Munsell, 21-5/8 in Overall Length, 31-1/2 in Overall Width, 11-1/4 in Overall Height, Additional Information: 490 rpm Low, 910 rpm Medium, 910 rpm High Cooling, 610 rpm Low, 900 rpm Medium, 900 rpm High Heating