Multi-split air conditioning systems are a type of air conditioning system that consists of one outdoor unit connected to multiple indoor units. This setup allows for individual control of the temperature in each room or zone, providing customized comfort throughout the space. Multi-split systems are ideal for buildings with limited outdoor space or where ductwork installation is not feasible. They offer energy-efficient operation, as each indoor unit can be controlled independently, allowing for precise temperature adjustments based on specific needs. Additionally, multi-split systems are versatile and can be configured to accommodate various room layouts and sizes.