A Halcyon Hybrid Flex Inverter (HFI) system allows you to connect up to 8 indoor units to one outdoor condensing unit, creating 8 individual zones of comfort. HFI provides both heating and cooling for year-round comfort. Choose from three indoor unit styles – wall mounted, cassette and slim duct – to best match your decor. A Central Remote Control allows you to control all of the indoor units from one keypad. Create the right combinations, the right quantity, the right style indoor units, and the right capacity. It’s the right choice for your home or business.