Fan Coil Units
Fan coil units (FCUs) usually consist of only a fan, a heating or cooling coil and a filter, and are located within the space they are serving. This may be single office rooms, apartments or larger areas where multiple units are installed together to overcome an overall heating or cooling requirement.
FCUs can either just recirculate internal air, in which case a separate ventilation system is required, or may introduce s proportion of fresh air that is mixed with the recirculated air.
Diagram below shows the main components and features of a simple FCU.
Where FCUs are supplied with chilled water and hot water from central boilers and chillers they are generally referred to as two pipe (either heating or cooling) or four pipe (both heating and cooling) units. A control valve installed on the return pipework would be controlled by a standalone thermostat or a Building Management System (BMS). FCUs can be wall-mounted, freestanding or ceiling-mounted and may be concealed in ceiling voids.
Recommended Installations
Pressure Independent Control Valve (PICV)
PICV
Stand Alone
PICV
- Easy to set up
- Straightforward commissioning
- No need for separate Commissioning Set and 2 Port Control Valve
Hook-Up
w/ PICV
w/ PICV
- Can be remotely fitted away from the terminal
- Reduced space constraints
- Extended levers available for chilled systems
Hook-Up Prime
w/ PICV
w/ PICV
- Direct mounting onto a terminal
- Reduced installation time
- No need for insulation due to mounting over drip tray
MultiComm
w/ PICV
w/ PICV
- Multi-manifold system allowing commissioning of up to 6 FCUs from one location
– Or –
Differential Pressure Control Valve (DPCV)
Hook-Up
w/ Comm. Set
w/ Comm. Set
- Available with either static Commissioning Set or Motobalance
- Available with Strainer
- Extended levers available for chilled systems
Hook-Up Prime
w/ Comm. Set
w/ Comm. Set
- Direct mounting onto terminal
- Reduced installation time
- No need for insulation due to mounting over drip tray
MultiComm
w/ DPCV
w/ DPCV
- Multi-manifold system allowing commissioning of up to six FCUs from one location
- Commissioning Sets on each terminal connection
Product Applications
Select from the product applications below to find out how dynamic balancing can improve installation on on-going operation.
