Samsung's Free Joint Multi is the best solution for residential buildings requiring a flexible, efficient and reliable air conditioning system. A single Free Joint Multi outdoor unit can support a variety of up to 5 indoor units with minimal installation space, providing efficient cooling and heating operation in multiple areas. The Free Joint Multi system employs Samsung's Digital Inverter control system, which enhances the efficiency of the outdoor unit. The Digital Inverter system works at maximum capacity at start up, and as soon as the set temperature is reached, it finely adjusts to cope with any changes. This translates to less temperature fluctuation and greater comfort which can be achieved in minutes. Because the outdoor unit's compressor works at a low speed to maintain the desired set temperature, noise levels are at a minimum allowing you to enjoy your FJM system in virtual silence. Samsung digital inverter systems give powerful and quick cooling and heating with minimal energy consumption, reducing waste and ultimately saving you money.