A high static fan coil unit (FCU) is a type of air conditioning unit designed to handle higher external static pressure, making it suitable for applications where air must be distributed through long duct runs or complex ductwork systems. Unlike standard fan coil units, a high static FCU features a more powerful fan or blower that can maintain airflow against greater resistance from filters, ducts, or diffusers. These units are commonly used in commercial buildings, hotels, hospitals, and large residential spaces where centralized air distribution is required. High static FCUs can be mounted in ceilings, walls, or floors and typically operate in conjunction with chilled water or refrigerant systems. They offer flexibility in installation and efficient zone-level temperature control.