Fan Coil Unit (FCU)
A fan coil unit (FCU) is a simple device used in HVAC systems that includes a heating or cooling coil and a fan. It is typically installed in individual rooms or zones and is used to control the temperature in that specific space. The fan draws air from the room across the coil, which either heats or cools the air depending on whether hot or cold water or refrigerant is circulating through the coil. The conditioned air is then blown back into the room. FCUs can operate as part of a larger HVAC system or independently and are often found in buildings with a central boiler and chiller system.
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