Flexible MULTI SYSTEM offers easy solution for connecting 1 up to 5 indoor units to 1 outdoor unit. Wall mounted split / cassette / floor ceiling / duct and console air conditioners for cooling and heating. For wider possibilities and higher capacities, opt for HIGH POWER MULTI SYSTEM. This system offers even more complex solutions for connection 2 up to 9 indoor units for 1 outdoor unit. Indoor units are separate products.