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Forums >> Revit Systems >> Technical Support >> ASHRAE TBL files and pressure loss calculation in Revit MEP 2012

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Sun, Sep 4, 2011 at 4:32:06 PM | ASHRAE TBL files and pressure loss calculation in Revit MEP 2012

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lhamel


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Joined: Wed, Jun 23, 2010
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Hi everybody,

If I wanted to create a new coefficient table (TBL file) for use in a project, what software should I use to create the new TBL file ? Another question: is it normal for REVIT gives me a value of 0 for a loss of pressure for a fitting? So, I can not trust to REVIT for the results. An example: By an inspection of a small network of air duct, REVIT gives me static pressure loss as 7 inches. But calculated manually, I get to 0.5 inch. What is, in my opinion makes more sense. What's wrong ? I brought this issue to autodesk from my dealer and I am still waiting for an answer. Meanwhile, I have to do the pressure drop calculations manually. Which is very frustrating.


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