[EnergyPlus_Support] No return air modeling

["giovani" <giovani_haryadi@xxxxxxxxx>]

Dear All,

I have a question, How to simulate HVAC system that has no return air? 
I get case about VAV system with exhaust fan and no return ducting. The designer has designed airflow though to exhaust fan is smaller from supply air (just half of supply air). I want to evaluate it (about energy and ventilation rate) but I have no idea how to configure the model without return air. 

I really appreciate with any help. Thank you.



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