Fan Coil Unit (FCU)

A fan coil unit (FCU) is a device that uses a coil and a fan to heat or cool a room without connecting to ductwork. Indoor air moves over the coil, which heats or cools the air before pushing it back out into the room. FCUs can be less expensive to install than ducted systems, and are available in ceiling, floor-mounted and freestanding configurations.

FCU systems are of average efficiency only but if well maintained and operated can produce a good level of efficiency. Each FCU is provided with a small supply of outside air to ensure adequate ventilation. The advantages or disadvantages of this system are:

• High level of flexibility in terms of subdivision and rearrangement of space.
• Poorly suited to open plan spaces, as adjacent units can operate in conflict