A High Wall FCU (Fan Coil Unit) is a type of air conditioning unit that is mounted high on a wall, typically near the ceiling. It is designed to provide efficient cooling or heating by drawing in room air, passing it over a coil (which can be chilled or heated), and then blowing the conditioned air back into the space. High wall FCUs are popular in both residential and commercial settings due to their easy installation, quiet operation, and space-saving design. They are especially suitable for rooms with limited floor space, offering effective climate control without compromising aesthetics or functionality.