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Alessandro, If you can email the *.b17 file, it is a bit easier to tell what the problem may be. If I had to guess, I would say that one of your walls is either too massive or not massive enough for TRNBuild to generate transfer function coefficients. To determine which wall is causing the problem, look in the *.inf file (it is text based). If it is a very low thermal mass wall, you can treat it as a purely resistive wall (i.e. treat it as though it had no thermal mass by using "massless" layers only.) If it is a very thick or highly thermally massive wall, you can increase the timebase to 2 hours (click on the outputs button in the main project window). Kind regards, David On 4/30/2012 04:55, Alessandro Rinaldi wrote:
-- *************************** 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 |