<table cellspacing="0" cellpadding="0" border="0" ><tr><td valign="top" style="font: inherit;">hello,<br><br>I'm a new user of Trnsys and still learning how to use the program . I tried the SDHW example, but instead using the flat plate collectors I change it to evacuated tubes collectors. But when I tried to do the parametric runs, when it required to insert the new table the parameters that supposed to come out is ACOLL and DHWDAILYLOAD. But what I got is START STOP and STEP. I tried to trace the mistakes but I couldn't. And also I'm designing a large scale solar assisted hot water system and I was wondering, what is the major component that I should concentrate on? How can I simplify the system yet gave the same effectiveness? Thank you.<br><br><br>Regards,<br>Khadijah<br>Master Degree student<br>Universiti Kebangsaan Malaysia<br><br></td></tr></table><br>