Fan Coil Unit (FCU) is the core terminal equipment of central air-conditioning systems, integrating refrigeration, heating, and ventilation in one. Featuring a compact structure and small size, it is easy to install and space-saving, making it suitable for a variety of scenarios such as office buildings, hotels, and residential buildings. By driving air through the coil via the fan for heat exchange, it achieves precise temperature control, low noise, and energy efficiency. It allows independent adjustment of wind speed and temperature to meet the personalized comfort needs of different areas, serving as a high-efficiency and practical indoor air conditioning solution.