Friedrich M18YE (MW18Y3E Indoor/MR18Y3E Outdoor) DUCTLESS SPLIT-TYPE SYSTEM 17,500 BTU Cool & Upto 18,000 Heat 230V Wall Mounted Heat Pump Air Conditioner with Wireless Remote Control. Split Air Conditioners are perfect for those that do not have central air conditioning, and do not want to settle for the noise and inefficiency of window units. Split systems offer higher efficiency and reduced noise without a large hole in the wall or an open window. By separating the compressor and condenser coil from the fan and evaporator coil, the noisiest component is away from the room. The indoor unit will usually have remote control capabilities and a timer to cycle the system only when needed. The indoor unit is called an air handler because it has the evaporator coil, blower, and controls inside. The outdoor unit is called the condenser. They are connected together with refrigerant piping and control wiring, similar to a central system. Since mini splits have no ducts, they avoid the energy losses associat...