<div dir="ltr"><div><span>DCV</span> - For min <span>OA</span> - make sure you have some non-zero value - I think that triggers the economizer. If you are using the min <span>OA</span> schedule - make sure it is either .001 or -999 for economizer to work. Let me know if helps.</div>
<div> </div></div><div class="gmail_extra"><br><br><div class="gmail_quote">On Thu, May 30, 2013 at 9:23 PM, Netty Nina <span dir="ltr"><<a href="mailto:nnina@ers-inc.com" target="_blank">nnina@ers-inc.com</a>></span> wrote:<br>
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<p class="MsoNormal">Hi eQuesters, <u></u><u></u></p>
<p class="MsoNormal"><u></u> <u></u></p>
<p class="MsoNormal">The next two questions have been asked on here multiple times, but I have scourged the list and haven’t found a resolution. My building is a school in New England.<u></u><u></u></p>
<p class="MsoNormal"><u></u> <u></u></p>
<p class="MsoNormal">I have a DCV measure that shows an increase in cooling. My thought is that DCV is taking precedence over the economizer. Is there a way to force eQuest to have economizer priority or is there another issue going on?<u></u><u></u></p>
<p class="MsoNormal"><u></u> <u></u></p>
<p class="MsoNormal">The other issue is in the Heat Recovery. It also shows an increased cooling load for the building. I tried setting it on an ERV Schedule and limiting it to the heating season. I tried playing with the different controls. I know it’s not
due to the increase in fan energy needed since the majority of units already have ERVs, but the efficiencies are better than code (and I also tried messing with the fan energy). Someone on the bldg-sim list even suggested controlling the ERV with Exhaust DT
and increasing the delta-T to 20F. <u></u><u></u></p>
<p class="MsoNormal"><u></u> <u></u></p>
<p class="MsoNormal">I couldn’t get any suggestions to work. How can I avoid overheating? Or is there another issue?<u></u><u></u></p>
<p class="MsoNormal"><u></u> <u></u></p>
<p class="MsoNormal">Thanks in advance for any help you can give me.<u></u><u></u></p>
<p class="MsoNormal"><u></u> <u></u></p>
<p class="MsoNormal">Sincerely, <u></u><u></u></p>
<p class="MsoNormal"><u></u> <u></u></p>
<p class="MsoNormal">Netty<u></u><u></u></p>
<p class="MsoNormal"><u></u> <u></u></p>
<p class="MsoNormal"><u></u> <u></u></p>
<p class="MsoNormal"><b><span style="font-family:"Arial","sans-serif";font-size:10pt"><a href="mailto:nnina@ers-inc.com" target="_blank"><span style="color:windowtext;text-decoration:none">Netty Nina</span></a>,
</span></b><span style="font-family:"Arial","sans-serif";font-size:10pt">LEED® AP BD+C<u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-family:"Arial","sans-serif";font-size:10pt">Project Engineer<u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-family:"Arial","sans-serif";font-size:10pt">ERS<u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-family:"Arial","sans-serif";font-size:10pt">120 Water Street, Suite 350<u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-family:"Arial","sans-serif";font-size:10pt">North Andover, MA 01845<u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-family:"Arial","sans-serif";font-size:10pt"><u></u> <u></u></span></p>
<p class="MsoNormal"><span style="font-family:"Arial","sans-serif";font-size:10pt">Ph: <a href="tel:978-521-2550%20ext.%20224" target="_blank" value="+19785212550">978-521-2550 ext. 224</a><u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-family:"Arial","sans-serif";font-size:10pt">Fax: <a href="tel:978-521-4588" target="_blank" value="+19785214588">978-521-4588</a><u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-family:"Arial","sans-serif";font-size:10pt"><a href="mailto:nnina@ers-inc.com" target="_blank"><span style="color:blue">nnina@ers-inc.com</span></a><u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-family:"Arial","sans-serif""><a href="http://www.ers-inc.com/" target="_blank"><span style="color:blue;font-size:10pt">www.ers-inc.com</span></a></span><span style="font-family:"Arial","sans-serif";font-size:10pt">
<u></u><u></u></span></p>
<p class="MsoNormal"><u></u> <u></u></p>
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