System No. 5 Two-pipe Fan Coil (N/A)

A Two-Pipe Fan Coil system, as defined in EnergyPlus HVACTemplate, is a climate control system commonly used in hotels, apartments, office buildings, and other multi-zone applications.

It consists of individual fan coil units installed in each zone, connected to a central two-pipe hydronic loop that circulates either chilled water for cooling or hot water for heating, depending on the season. Each fan coil unit contains a coil through which the water circulates, transferring heat to or from the air, and a fan that distributes the conditioned air throughout the space. The two-pipe configuration requires seasonal changeover between cooling and heating modes, as the system can only provide one function at a time. The system ensures individual zone temperature control and relatively quiet operation.

This configuration is particularly suitable for applications where decentralized zone control with a simple, cost-effective hydronic distribution system is preferred.

A Two-Pipe Fan Coil system comprises:

• Plant HVAC component - Two-Pipe Hydronic System (Heating/Cooling Changeover)

• Space HVAC component - Two-Pipe Fan Coil Unit

The 'Select HVAC Template' form allows for multiple Spaces to be served. Clicking into the 'Spaces' field shows a list of available Spaces. Each selected Space will have one Two-Pipe Fan Coil Unit Space HVAC component, providing individual zone climate control.