The definition of a mini split residential system is one that is designed to provide both heating and cooling to a single room or area of a home. It is an efficient and cost-effective way to keep a home comfortable all year round. The system consists of an outdoor condenser unit and an indoor air handler, connected by a conduit that contains refrigerant lines, condensate drain line, and power cables. The outdoor unit contains the compressor, condenser coil, and expansion valve, while the indoor unit contains the evaporator coil, fan, and air filter. The refrigerant lines carry the refrigerant between the two units, while the condensate drain line carries away any condensation created by the system. The power cables provide the necessary power to the system. The mini split residential system is ideal for homes with limited space, as it can be installed in a single room or area without the need for extensive ductwork. It is also an energy-efficient solution, as it only uses energy when it is needed.