<table cellspacing="0" cellpadding="0" border="0" ><tr><td valign="top" style="font: inherit;"><DIV id=yiv1804779766>
<DIV>Hi,</DIV>
<DIV> </DIV>
<DIV>Thanks a lot for all your replies. I changed the following settings and solved the problem.</DIV>
<DIV> </DIV>
<DIV>Control Sequences Operation: when minimum OA </DIV>
<DIV>Make air temperature cotrol: Mixed Air Reset</DIV>
<DIV> </DIV>
<DIV>Best,</DIV>
<DIV> </DIV>
<DIV>Shaojie<BR><BR>--- On <B>Tue, 10/28/08, Kingsley, Michael L. <I><MICHAEL.L.KINGSLEY@saic.com></I></B> wrote:<BR></DIV>
<BLOCKQUOTE style="PADDING-LEFT: 5px; MARGIN-LEFT: 5px; BORDER-LEFT: rgb(16,16,255) 2px solid">From: Kingsley, Michael L. <MICHAEL.L.KINGSLEY@saic.com><BR>Subject: RE: [Bldg-sim] ERV with increasing cooling load<BR>To: shaojieworld2006@yahoo.com, bldg-sim@lists.onebuilding.org<BR>Date: Tuesday, October 28, 2008, 8:09 AM<BR><BR><PRE>Shaojie,
Check to make sure that you are not recovering heat during hours that
you can be using the economizer. Choose the Control Sequences:
Operation: "When Minimum OA" so that the heat recovery device will
only
operate when you cannot benefit from free cooling.
Mike
Michael L. Kingsley, PhD, PE, LEED AP
Senior Engineer/ Project Manager
SAIC
6390 Fly Road
East Syracuse, New York 13057
Phone: (315) 437-1869 x205
Cell: (315) 373-4081
Fax: (315) 437-1866
Email: kingsleym@saic.com
-----Original Message-----
From: bldg-sim-bounces@lists.onebuilding.org
[mailto:bldg-sim-bounces@lists.onebuilding.org] On Behalf Of eric wang
Sent: Monday, October 27, 2008 11:32 PM
To: bldg-sim@lists.onebuilding.org
Subject: [Bldg-sim] ERV with increasing cooling load
Hi,
I model a PSZ system with exhaust air heat recovery. I set the static
pressures of supply/exhaust fans as zero in ERV tab. Therefore, the fan
energy is the same with or without ERV. However, there is an increasing
cooling load in the cooling model. I changed the hourly report and
didn't find the reason. Any suggestions are highly appreciated.
Thanks
Shaojie
</PRE></BLOCKQUOTE></DIV></td></tr></table><br>