A ductless split system, also known as a mini-split or inverter ductless split system, is a type of air conditioning system that is designed to provide cooling and heating to specific areas of a home or building. Unlike traditional air conditioning systems, which use ducts to circulate air throughout the entire building, a ductless split system uses an outdoor unit and an indoor unit that are connected by a conduit. The outdoor unit contains the compressor, condenser, and expansion valve, while the indoor unit contains the evaporator and fan. The conduit connects the two units and carries the refrigerant between them.

The main benefit of a ductless split system is that it is highly efficient and can provide precise temperature control to specific areas of a home or building. The indoor unit can be mounted on a wall or ceiling, and it can be connected to multiple indoor units, allowing for greater flexibility in controlling the temperature in different areas. The inverter technology used in these systems also allows for greater energy efficiency, as the compressor can adjust its speed to match the cooling or heating needs of the area. Additionally, ductless split systems are relatively easy to install and maintain, making them a great choice for homeowners and businesses looking for an efficient and cost-effective air conditioning solution.