These systems are popular in commercial applications due to their distinct advantages of service friendliness and extended ducting capabilities. In this range, the floor-mounted indoor unit houses the DIDW blower, coil, filter and compressor, while the outdoor unit houses the high-efficiency condenser and new-design propeller fan. The strategic design, which places the compressors in the proximity of the evaporator in the indoor unit, further enhances the efficiency of this system.