Cassette indoor units must be mounted on the ceiling, providing a first mounting block, and then install the decorative panel entry and exit of air. The main air distribution occurs in 4 directions, additional angular channels provide a more uniform air flow, the air flow deviation can be adjusted vertically by deflecting louvers. All cassette indoor units are equipped with built-in drain pump, decorative louvre panel and remote control are also included. Split system inverter-type (with variable capacity compressor) are becoming more popular - the benefits of the inverter in a more precise temperature control cycles, maximizing energy efficiency. Wired remote and central group control can be installed as an option.