Ricardo, There is a step in the middle I think. Once you have completed your project in Trnsys3D, you save the *.idf. Jeremiah is correct that this file uses the EnergyPlus file format so it has to be translated to the TRNSYS format. The next step is to open TRNBuild and import the *.idf, make any changes you want to the building materials, etc., then save the file in native TRNSYS format (*.bui). Only then can you go on to the TRNSYS studio and reference the *.bui file. Regards, David On 6/24/2012 15:46, Ricardo Gallegos wrote: Hi all -- *************************** David BRADLEY Principal Thermal Energy Systems Specialists, LLC 22 North Carroll Street - suite 370 Madison, WI 53703 USA P:+1.608.274.2577 F:+1.608.278.1475 d.bradley@tess-inc.com http://www.tess-inc.com http://www.trnsys.com |