[EnergyPlus_Support] fan coil with fresh air

["yangchen19851226" <yangchen19851226@xxxxxxxxxxxx>]

Hi,
  
  Can you explain to me the following description:

A fresh air handling unit that feeds directly into the outside air intake of the fan coil units is not currently supported. However, you can approximate this fairly well by having the pre-treated outside air feed directly into the zone and the fan coil unit will serve the net remaining load. Here's how to do this:
1. Define an AIR PRIMARY LOOP to treat the fresh air and use DIRECT AIR terminal units to feed the zone.
2. In the ZONE EQUIPMENT LIST, set the heating and cooling priorities to 1 for the DIRECT AIR (fresh air system) and 2 for the fan coils.
3. Use a NODE LIST object to specify more than one inlet node for the zone.
4. The fresh air system will need a return air node and a return air path, even if there will not be any return flow, it must be defined.




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