Santeri, When you select "add parameters" from the drop-down menu, eight fields should appear below the pulldown, each with a number in it. I think that by default the values are all set to -9999. Click in each field and type in the values from your manufacturer's data sheet, then press calculate. I would recommend writing down the five calculated results in case they do not transfer back to the proforma automatically. Kind regards, David On 9/5/2012 04:19, Santeri Siren wrote: Dear Trnsys users, -- *************************** 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 |