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<DIV dir=ltr align=left><SPAN class=382561818-28062010><FONT color=#0000ff
size=2 face=Arial>I have modeled water-side economizers successfully a
number of times. But instead of putting it under the chiller, as you
are showing in your attachment, I have always input it on the air side. To
input the water-side economizer go under Air-Side HVAC and then under Cooling
and then under Economizer. After you are in this input area then the
program will allow you to select that you want a water-side economizer and then
when selected yes, will allow you to put in the water-side economizer
inputs. I have attached the helps that pull up in this area, when you
right click and select item help.</FONT></SPAN></DIV>
<DIV dir=ltr align=left><SPAN class=382561818-28062010></SPAN> </DIV>
<DIV dir=ltr align=left><SPAN class=382561818-28062010>
<DIV align=left>
<DIV align=left><STRONG><EM><FONT color=#0000ff size=6
face="Bradley Hand ITC">David A. Bastow </FONT></EM></STRONG></DIV>
<DIV align=left><STRONG><EM><FONT face="Rockwell Extra Bold">McClure
Engineering, Inc. </FONT></EM></STRONG></DIV></DIV></SPAN></DIV><BR>
<DIV dir=ltr lang=en-us class=OutlookMessageHeader align=left>
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<FONT size=2 face=Tahoma><B>From:</B> equest-users-bounces@lists.onebuilding.org
[mailto:equest-users-bounces@lists.onebuilding.org] <B>On Behalf Of </B>Varkie C
Thomas<BR><B>Sent:</B> Monday, June 28, 2010 11:08 AM<BR><B>To:</B> Varkie C
Thomas<BR><B>Cc:</B> Sethi, Amarpreet; equest-users@lists.onebuilding.org;
Jonathan Smith<BR><B>Subject:</B> Re: [Equest-users] Waterside
Economizer<BR></FONT><BR></DIV>
<DIV></DIV>
<P style="MARGIN: 0in 0in 0pt" class=MsoNormal><SPAN
style="FONT-SIZE: 12pt"><FONT face=Calibri>I am having a hard time getting
�Chiller Type = Waterside Economizer� to work in eQ.<SPAN
style="mso-spacerun: yes"> </SPAN>I received 2 messages recommending this
as the solution.<SPAN style="mso-spacerun: yes"> </SPAN>I have 2 more
saying that they have not been able to model WSE in eQ.<SPAN
style="mso-spacerun: yes"> </SPAN>Please let me know if it is not supposed
to work.<SPAN style="mso-spacerun: yes">
</SPAN><o:p></o:p></FONT></SPAN></P>
<P style="MARGIN: 0in 0in 0pt" class=MsoNormal><SPAN
style="FONT-SIZE: 12pt"><o:p><FONT face=Calibri> </FONT></o:p></SPAN></P>
<P style="MARGIN: 0in 0in 0pt" class=MsoNormal><SPAN
style="FONT-SIZE: 12pt"><FONT face=Calibri>Unlike DOE2.1E this is the only
minimum input required in eQ.<SPAN style="mso-spacerun: yes"> </SPAN>In
this project during WSE operation we require a Clg-Twr leaving temp (Plate &
Frame HX entering temp) of 42F so that the CHW temp leaving the HX is 44F or
46F.<SPAN style="mso-spacerun: yes"> </SPAN>The eQ default is 85F.<SPAN
style="mso-spacerun: yes"> </SPAN>Even with this default and �Chiller Type
= Waterside Economizer� I get the error message �Condenser Water Loop has Zero
Design Flow�.<o:p></o:p></FONT></SPAN></P>
<P style="MARGIN: 0in 0in 0pt" class=MsoNormal><SPAN
style="FONT-SIZE: 12pt"><o:p><FONT face=Calibri> </FONT></o:p></SPAN></P>
<P style="MARGIN: 0in 0in 0pt" class=MsoNormal><SPAN
style="FONT-SIZE: 12pt"><FONT face=Calibri>Unlike DOE2.1E there is no way of
attaching a schedule for WSE operation.<SPAN style="mso-spacerun: yes">
</SPAN>I have attached eQ input-output �Without-WSE-1� and �With-WSE-2�; DOE2.1E
definitions of WSE commands and keywords;<SPAN style="mso-spacerun: yes">
</SPAN>a sample DOE2.1E plant section input showing WSE; a schematic of Plate
& Frame HX; and my eQ input for WSE and the resulting error message.<SPAN
style="mso-spacerun: yes"> </SPAN>The attached project is dummy to test eQ
for WSE.<o:p></o:p></FONT></SPAN></P>
<P style="MARGIN: 0in 0in 0pt" class=MsoNormal><SPAN
style="FONT-SIZE: 12pt"><o:p><FONT face=Calibri> </FONT></o:p></SPAN></P>
<P style="MARGIN: 0in 0in 0pt" class=MsoNormal><SPAN
style="FONT-SIZE: 12pt"><FONT face=Calibri>Has anyone modeled WSE with eQ?<SPAN
style="mso-spacerun: yes"> WSE works with DOE2.1E commands and
keywords.<SPAN style="mso-spacerun: yes"> </SPAN></SPAN>Does Waterside
Economizer work with EnergyPlus (this project is also going to be modeled with
E+ using Design-Builder interface for building and systems), TRACE or
HAP</FONT></SPAN></P>
<P style="MARGIN: 0in 0in 0pt" class=MsoNormal><SPAN
style="FONT-SIZE: 12pt"><FONT face=Calibri></FONT></SPAN> </P>
<P style="MARGIN: 0in 0in 0pt" class=MsoNormal><SPAN
style="FONT-SIZE: 12pt"><FONT face=Calibri>Varkie</FONT></SPAN></P>
<P style="MARGIN: 0in 0in 0pt" class=MsoNormal><SPAN
style="FONT-SIZE: 12pt"><FONT face=Calibri></FONT></SPAN> </P>
<P style="MARGIN: 0in 0in 0pt" class=MsoNormal><SPAN
style="FONT-SIZE: 12pt"><FONT
face=Calibri><o:p></o:p></FONT></SPAN> </P></BODY></HTML>