[EnergyPlus_Support] question about outside air system plus unit ventilator

["zhaicq98" <zhaicq98@xxxxxxxxx>]

Hi,

I am working on a system which was designed for lab space. There are 
a heating coil, cooling coil, and supply fan and exhaust fan in the 
main air handling unit (AHU). In each lab space, there is a unit 
ventilator, which includes a cooling coil, heating coil and a fan. 

The pre-treated outside air from the main AHU is delivered to each 
lab space, where it gets mixed with the re-circulated air in that 
lab. The mixed air is then drawn through the unit ventilator, where 
it gets further cooled/heated. The exhaust air is drawn through the 
lab hood to the main AHU, where it is exhausted. 

I encountered some problems when I tried to simulate this system in 
E+. It seems to me that the unit ventilator in E+ will do the job. 
But I do not know how to connect the pre-treated outside air to the 
unit ventilator and how to get the air exhausted from the lab hood. 

Your help is really appreciated. 

Thanks,
Chaoqin




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