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RE: [EnergyPlus_Support] Error and crash in this .idf




The error message seems reasonably clear, E+ doesn’t think this surface has air around it.� Make sure the surface description calls this a roof and not a floor and that it is exposed to the outside.� Check the orientation, although that typically generates other warnings.



Also check your other airflownetwork objects, you need a control, a crack type, and an outside surface.� E+ will sometimes generate error messages when related objects are missing or incorrectly specified.



Ned Lyon, P.E. (MA, WV)
Staff Consultant

SIMPSON GUMPERTZ & HEGER
781.907.9000�main
781.907.9350 direct�
617.285.2162 mobile�
781.907.9009�fax
www.sgh.com



From: EnergyPlus_Support@xxxxxxxxxxxxxxx [mailto:EnergyPlus_Support@xxxxxxxxxxxxxxx] On Behalf Of m.aldegheri@xxxxxxxxx
Sent: Tuesday, March 11, 2014 2:20 PM
To: EnergyPlus_Support@xxxxxxxxxxxxxxx
Subject: [EnergyPlus_Support] Error and crash in this .idf





Dear friends,

I don't know why but after adding a vented roof in this .idf (which worked without problems) Energy plus crashes during a run and the error log shows this:
�� ** Severe� ** GetAirflowNetworkInput: AirflowNetwork:MultiZone:Surface: Invalid Surface Name = P4:P4%A12ZN6U_ROOF_6_0_0
�� **�� ~~~�� ** This type of surface (has ground, etc exposure) cannot be used in the AiflowNetwork model.

I tried to check but I don't understand how to fix this error... It seems to be all right...
Moreover, I had problems uploading the idf so the only way is to download it from the link below.... Excuse me for that...
<http://www.speedyshare.com/dPj34/Modello-ITEA-10-03.idf>http://www.speedyshare.com/dPj34/Modello-ITEA-10-03.idf (click on the big title up)

Best regards,
Marco




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