<html xmlns:v="urn:schemas-microsoft-com:vml" xmlns:o="urn:schemas-microsoft-com:office:office" xmlns:w="urn:schemas-microsoft-com:office:word" xmlns:m="http://schemas.microsoft.com/office/2004/12/omml" xmlns="http://www.w3.org/TR/REC-html40"><head><META HTTP-EQUIV="Content-Type" CONTENT="text/html; charset=us-ascii"><meta name=Generator content="Microsoft Word 12 (filtered medium)"><style><!--
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</o:shapelayout></xml><![endif]--></head><body lang=EN-US link=blue vlink=purple><div class=WordSection1><p class=MsoNormal>Hello All,<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>I’m attempting to model the savings from increasing the size of a plate and frame heat exchanger in eQUEST. I’ve found, however, that no matter what I enter as a value for capacity, eQUEST seems to override this and just operate the PFHX whenever outdoor air wet bulb permits, making the plate and frame capacity equal to the maximum loop load whenever the wet bulb temp is below 37 F (depending on approach temps, CHW supply temp, etc). I’ve tried entering capacities as low as 0.00001 MBtu/h and have also tried allowing it to autosize capacity and then using a capacity ratio less than one to compensate. Neither achieves the desired outcome. <o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>Has anyone run into this issue before?<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>Thank you very much,<o:p></o:p></p><p class=MsoNormal>Joe<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal><b><span style='font-size:12.0pt;color:#0066CC'>Joe Bliss<o:p></o:p></span></b></p><p class=MsoNormal><span style='color:#0066CC'>Designer<o:p></o:p></span></p><p class=MsoNormal><b><span style='font-size:12.0pt;color:#0066CC'>B2Q Associates, Inc.<o:p></o:p></span></b></p><p class=MsoNormal><span style='color:#0066CC'>146 Main Street #2<o:p></o:p></span></p><p class=MsoNormal><span style='color:#0066CC'>North Andover, MA 01845<o:p></o:p></span></p><p class=MsoNormal><span style='color:#0066CC'>Office: 978.208.0609 x210<o:p></o:p></span></p><p class=MsoNormal><span style='color:#0066CC'>Mobile: 774.277.0662<o:p></o:p></span></p><p class=MsoNormal><span style='color:#0066CC'>Fax: 978.719.6339<o:p></o:p></span></p><p class=MsoNormal><span style='color:#0066CC'><a href="http://www.b2qassociates.com/"><span style='color:blue'>www.b2qassociates.com</span></a><o:p></o:p></span></p><p class=MsoNormal><span style='color:#0066CC'><o:p> </o:p></span></p><p class=MsoNormal>The contents of this e-mail and any attachments are confidential and the property of the B2Q Associates, Inc. The e-mail contents are only to be used by the intended recipient of the e-mail. If you are not the intended recipient then use, disclosure, copying, distribution or reliance on the e-mail is prohibited. All professional advice from us should be obtained in writing (not e-mail).<o:p></o:p></p><p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><o:p> </o:p></p></div></body></html>