Chilled Water Fan Coil Unit
What is a fan coil unit, what does it do & how does it work?
A fan coil unit is a relatively small piece of equipment that consists of a fan, a coil, and other components, that are used to cool or heat the air recirculating within a room. Some will also add fresh air to the space.
Typically, to operate in cooling mode, a wall or duct-mounted thermostat will note the space temperature is over setpoint controlling a modulating/on/off valve, the fan will blow air across the chilled water coil that is fed from the building central system, with the cooled conditioned air flowing back into the room, cooling the space.
Typically, to operate in heating mode, a wall or duct-mounted thermostat will note the space temperature is below-set point controlling a modulating/on/off valve, the fan will blow air across the heating coil that is fed from the building central system, with the heated conditioned air flowing back into the room, heating the space. T…