Ductless Split Multi-zone Experience the true individual comfort. Ductless mini-split systems are perfect solution to variety of installation challenges, allowing installers the ability to place ductless mini-split units in locations that were previously impractical or impossible. They are ideal when additional ductwork is necessary but not cost effectively. Basically Ductless mini-split units eliminate the use of duct-work. In addition to eliminating the need for ducting, one of the other great advantages of ductless multi-split systems is true zone control. Each indoor fan coil unit is dedicated to the room being conditioned allowing a temperature and humidity level to be kept different from the rest of the house or the building. It has never been easier or more cost effective to cool and heat multiple rooms from a single outdoor unit. The most advantage of the multi zone system is once all indoor units in operation, cooling or heating, at the same time the system will limit the indoor unit capacity so that they will match with the outdoor unit capacity. When a zone meets the desired set temperature it requires less capacity. The unused capacity is then distributed to the remaining indoor units under operation, increasing their capacity. By rotating the capacity multi zone systems are preferred to increase diversity in heating and cooling loads for day and night operation.