Graham, If you are using Trnsys17, change Type109 out for Type15 (which combines the functions of Type89 and 16 like Type109 does but which will also read the *.epw format). To try an automatic replacement in either Trnsys16 or 17, right click on Type109 and select "replace" from the context menu. Browse to find the proforma of the component you want to use as the replacement. best, David On 7/25/2011 14:04, Graham Linn wrote: Good Afternoon 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 |