<html> <head> <style> .hmmessage P { margin:0px; padding:0px } body.hmmessage { FONT-SIZE: 9pt; FONT-FAMILY:Tahoma } </style> </head> <body class='hmmessage'> Hi, all   I make a simple project in accordance with cookbook, geometry->construction->clinate-> topologyp->control(basic control), but unfortunately, after simulation, when result analysis, I found the temperature didn't controled as I expected, e.g. I set heating zone DB T is 20 C, but result shows zone temperature always lower than 14 C.  and when I perform simulating, the default result file title is "libb", not as examlar's "*.rst", why? what is the possible reason?   any answers are helpful.   thank you!   Leepaul     <hr />Windows Live Writer 让您告别龟速网络，轻松写日志！ <a href='http://writer.live.com/' target='_new'>立即使用！</a></body> </html>