model: WHAT IS THE FAN COIL UNIT AND HOW TO WORK FAN COIL UNIT

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Fan Coil Unit A water system fan coil unit operates by circulating chilled or heated water through a coil, while a fan distributes conditioned air, ensuring efficient temperature control without direct refrigerant use. What is a Water System Fan Coil Unit? A fan coil unit (FCU) is a simple yet highly effective device used for heating and cooling individual spaces. A water system fan coil unit operates by circulating hot or cold water through a coil, while a fan blows air across the coil to condition the room. The hot or cold water is supplied from a central plant or mechanical room, which removes or adds heat to the building’s closed-loop water system. This makes fan coil units a popular choice in residential, commercial, and industrial buildings due to their efficiency, flexibility, and relatively low cost. What is the Difference Between a Water System Fan Coil Unit and an Air Handling Unit? Although both devices are part of HVAC systems, they serve different purposes: Fan Coil Unit (FCU): Smaller, localized units. Condition air for individual rooms or zones. Receive hot/cold water from a central system. Do not usually include fresh air supply—mainly recirculate room air. Air Handling Unit (AHU): Larger, centralized equipment. Condition and distribute air to multiple areas of a building. Often include ventilation, filtration, humidification, and connection to ductwork. More complex and higher in cost compared to fan coil units. In short, a fan coil unit is a compact room-based solution, while an air handling unit is a building-wide air management system. How Much Does it Cost to Replace a Fan Coil Unit? The replacement cost of a fan coil unit depends on several factors such as size, capacity, brand, and installation requirements. On average: Residential fan coil units: RS 30000 – 150000 per unit (including parts and labor). Commercial/industrial fan coil units: RS 7000 – 270000 per unit, depending on design and complexity. Additional expenses may include piping, controls, and professional installation. While upfront costs vary, modern fan coil units are designed to be more energy-efficient, offering long-term savings. Do Water System Fan Coil Units Use Refrigerants? Unlike traditional split AC units that rely on refrigerants inside each indoor unit, water system fan coil units do not directly use refrigerants. Instead, they rely on chilled or heated water supplied by a central plant. The refrigerant is typically confined to the chiller or heat pump that cools or heats the building’s water loop. This setup makes water system fan coil units more environmentally friendly, as they reduce the widespread use of refrigerants throughout the building. A water system fan coil unit is a practical and versatile HVAC solution that offers localized temperature control while relying on a central water loop. Compared to air handling units, they are smaller, simpler, and cost-effective to replace. Importantly, they do not directly use refrigerants, which makes them a greener choice in today’s energy-conscious market. For building owners, developers, or facility managers, understanding the role and benefits of fan coil units can help in making informed decisions for comfort, efficiency, and sustainability.