Indoor Unit #CS-51V2A-P98AD Outdoor Unit #CS-51V2A-E2D Rated Volt and Frequency: 260V / 60Hz Cooling: 18000 BTU Heating: 20000 W SEER: 16.0 EER: 10.2 HSPF: 9.0 Rated Current (Cooling/Heating): 10 / 20 Compressor Type: Rotary Indoor CS-51V2A-P98AD Indoor Noise Level dB: 48/46/44 Dimension (L*W*H) (Inch): 35.5 x 11.5 x 8.5 Packing (L*W*H): 38.875 x 15 x 12 Net/Gross Weight: 28.625 / 33 Outdoor CS-51V2A-E2D Outdoor Noise Level dB: 57 Dimension (L*W*H) (Inch): 33.5 x 11.625 x 23.875 Packing (L*W*H): 39.25 x 16.375 x 27.25 Net/Gross Weight: 88.2 / 99.2 Refridgerant Type / Weight (LBS): 410A / 2.87 Refridgerant Piping / Connection Wiring: Liquid Side / Gas Side / Length - 1/4"L x 1/2" S x 25' Length Max Refridgerant Pipe Length / Max Differnce in Level - 15/5