A Vertical Fan Coil Unit (VFCU) is a heating, ventilation and air conditioning (HVAC) system designed to provide thermal comfort and indoor air quality in commercial, industrial, and residential buildings. It primarily consists of a fan coil unit, which is powered by an electric motor, connected to an external source of cooling and/or heating air. The VFCU helps control temperature fluctuations and ensure consistent air quality, making it suitable for applications such as offices, hospitals and other indoor spaces where uniform temperatures are essential for optimal comfort and productivity.