These heavy duty units are designed for use with Ducted air system. This type air conditioner is almost same type of Ductable split air conditioner. This unit's all accessories are fitted in one package exclude condensing coil, so it is called packaged air conditioner. The units are equipped with quiet, large volume air movement forward curved fans with large outlet areas to minimize air movement noise. This type air conditioners hidden in the ceiling, this product range is ideally suited for open office areas, large conference room, show rooms, marriage halls and other places where along with cooling efficiency, distributed air flow is essential. Its ranges are 5.5, 8.5, 11.0, and 17.0TR.