Brand: CG AC Type: Non Inverter Cooling Capacity (BTU:) 48000 Cooling Current(Amp): 9.25 Cooling EER(W/W): 2.55 Heating Capacity (BTU): 51000 Heating Current (Amp): 9.63 Heating COP (W/W): 2.68 Indoor Noise Level (dBA): 51/47/43 Indoor Unit Dimension: 840x840x300 Refrigerant: R410A Compressor Type: Rotary Power Supply: 220-240V AC 50 Hz Microcomputer Controlled Reverse Defrosting System Remotely Controllable Centrifugal Type Indoor Fan Indoor Air Circulation(Heating/Cooling) Propeller Type Outdoor Fan Warranty: 1 year Product Description A heat pump is an air conditioner in which the refrigeration cycle can be reversed, producing heating instead of cooling in the indoor environment. They are also commonly referred to as a “reverse cycle air conditioner”. The heat pump is significantly more energy efficient than electric resistance heating.