Yikes, Heath! I hope there is someone who can assist you. It is so not me. But my heart goes out to you.<br><br>Wishing you success!<br><br>Carol<br><br><div class="gmail_quote">On Thu, May 13, 2010 at 12:03 PM, Heath Baxa <span dir="ltr"><<a href="mailto:Heath.Baxa@me-engineers.com">Heath.Baxa@me-engineers.com</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin: 0pt 0pt 0pt 0.8ex; border-left: 1px solid rgb(204, 204, 204); padding-left: 1ex;">
<div link="blue" vlink="purple" lang="EN-US">
<div>
<p class="MsoNormal">I’m modeling a packaged DX pool dehumidification unit
with a pool water condenser. Project is a recreational natatorium in
Dallas.</p>
<p class="MsoNormal"> </p>
<p class="MsoNormal">During dehumidification, hot gas is directed:</p>
<p class="MsoNormal">1<sup>st</sup> to space heating loads via unit mounted
reheat coil</p>
<p class="MsoNormal">2<sup>nd</sup> to pool heating via unit mounted pool water
condenser</p>
<p class="MsoNormal">3<sup>rd</sup> external condenser</p>
<p class="MsoNormal"> </p>
<p class="MsoNormal" style="text-align: justify;">Since this is a LEED project we
have to meet ASHRAE 90.1-2007 Mandatory Provisions. Section 7.4.5.2
requires a pool cover. The following exception could apply:</p>
<p class="MsoNormal" style="margin-left: 1in; text-align: justify;"><i> “Pools
that receive over 60% of their energy (computed over an annual operating
season) from either heat recovery or site-solar energy do not need
covers. Heat recovered from a pool dehumidification system can be used to
meet this requirement.”</i></p>
<p class="MsoNormal"> </p>
<p class="MsoNormal">I’m finding that the dehumidification unit reduces the
pool heating energy use by approximately 14% annually. Has anyone done a
similar calculation to document compliance with this exception? Right now
I’d just like a rough engineering check.</p>
<p class="MsoNormal"> </p>
<p class="MsoNormal"><b><span style="color: rgb(135, 193, 57);">Heath Baxa, P.E., LEED AP</span></b></p>
<p class="MsoNormal"> </p>
</div>
</div>
<br>_______________________________________________<br>
Equest-users mailing list<br>
<a href="http://lists.onebuilding.org/listinfo.cgi/equest-users-onebuilding.org" target="_blank">http://lists.onebuilding.org/listinfo.cgi/equest-users-onebuilding.org</a><br>
To unsubscribe from this mailing list send a blank message to <a href="mailto:EQUEST-USERS-UNSUBSCRIBE@ONEBUILDING.ORG">EQUEST-USERS-UNSUBSCRIBE@ONEBUILDING.ORG</a><br>
<br></blockquote></div><br><br clear="all"><br>-- <br>Carol Gardner PE<br>
<div style="visibility: hidden; display: inline;" id="avg_ls_inline_popup"></div><style type="text/css">#avg_ls_inline_popup { position:absolute; z-index:9999; padding: 0px 0px; margin-left: 0px; margin-top: 0px; width: 240px; overflow: hidden; word-wrap: break-word; color: black; font-size: 10px; text-align: left; line-height: 13px;}</style>