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[EnergyPlus_Support] double flow ventilation modeling

Hello,

I have a problem for the modeling of a double flow ventilation (heat recovery ventilation). I have two Zone (assuming kitchen and a room). I want to extract 45m3/h from the kitchen, send it through the heat exchanger and then outdside. In the same time, I want to inject 45m3/h of outdoor air in the heat exchanger and then inject the warmed air in the room. The circulation between the zone is assured by zone cross-mixing. 

My problem is that when I create a ZoneHVACEnergyRecoveryVentilator, I can't create a supply fan having an outlet node in a different zone from the exhaust fan inlet node.
 Or, in my case, I want the sypply fan outlet to be the room inlet, and the exhaust fan inlet to be the kitchen outlet.

I get this error message.

Severe  ** For ZoneHVAC:EnergyRecoveryVentilator "STAND ALONE ERV 1"
   **   ~~~   ** ... Node name of supply air outlet node and exhasut air inlet node must appear in the same ZoneHVAC:EquipmentConnections object.

What system can I use to model the situation I have described?

Thanks in advance.

Robin GENOUD



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