Ductless Heat Pump Indoor Unit; Type Mini-Split System, 1-Zone, Evaporator; Voltage Rating 208 to 230 Volt AC; Current Rating 18 Amp (Cooling), 18.8 Amp (Heating); Frequency Rating 60 Hertz; Number of Phases 1; Power Rating 4.1 Kilowatt (Cooling), 4.28 Kilowatt (Heating); Cooling Capacity 36000 BTU/Hour; Operating Temperature 14 to 115 Deg F (Cooling), 5 to 75 Deg F (Heating); Installation Wall; Enclosure Material Painted Galvanized Steel; Size 39-5/16 Inch Width x 9 Inch Depth x 12-5/8 Inch Height; Weight 31 Pound; Approval ETL (US); Refrigerant Type R410A; Energy Efficiency 15.5 SEER; Sound Level 50 Decibel (Cooling/Heating); Air Flow Rating 695 CFM