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How do I fix the invalid boundary conditions object error ?

asked 2014-11-27 17:44:54 -0500

RMAK
265 ●1 ●5

updated 2014-11-28 10:47:36 -0500

flag of United States of America

4675 ●9 ●17 http://bigladdersoftware.com/

Hello, I tried to run a simple model on open studio and it failed to run. It said that a few of the surfaces had an invalid "outside boundary condition object" . I tried to use the search surfaces tool to find he surfaces and then change them manually but the problem is when I do that a chunk of the model shows up and not just the surface I want. I dont think it'll be possible for me to do that many surfaces manually like that. Can someone please help me with this ? It's driving me crazy !

Kind Regards, RMAK

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answered 2014-11-27 23:53:24 -0500

David Goldwasser

flag of United States of America

20295 ●94 ●14 http://www.openstudio.net/

updated 2014-11-27 23:54:12 -0500

The most common cause for an invalid outside boundary condition object is when there is a space in your model that has surfaces matched to another space, but the space is never put into a thermal zone. That space isn't exported to the IDF but the adjacent space still has a surface boundary conditions that refers to surfaces in the missing space. Look at the red Unassigned Thermal Zone text in the screenshot on this post.

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Asked: 2014-11-27 17:44:54 -0500

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Last updated: Nov 27 '14

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