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John,<br>
<br>
This does not surprise me at all. How are you controlling the
evaporative coolers? Many things change when<br>
you use an evaporative cooler (100% OA, more pre-cooling, etc.) , so
you may be leaving the building at the lower temperature at the
beginning of the next day that then necessitates more heating. I'd
suggest you take a look at the indoor temperatures and compare them
to those with a RTU. As to what to do about it, it depends on
what's your objective - to minimize energy cost or electricity, no
increase in heating fuel, etc. Achieving that would <br>
require some tweaking of the operations.<br>
<br>
Joe<br>
<pre class="moz-signature" cols="90">Joe Huang
White Box Technologies, Inc.
346 Rheem Blvd., Suite 108D
Moraga CA 94556
<a class="moz-txt-link-abbreviated" href="mailto:yjhuang@whiteboxtechnologies.com">yjhuang@whiteboxtechnologies.com</a>
<a class="moz-txt-link-abbreviated" href="http://www.whiteboxtechnologies.com">www.whiteboxtechnologies.com</a>
(o) (925)388-0265
(c) (510)928-2683
"building energy simulations at your fingertips"
</pre>
<br>
On 3/7/2012 4:24 PM, John Aulbach wrote:
<blockquote
cite="mid:1331166288.59464.YahooMailNeo@web126103.mail.ne1.yahoo.com"
type="cite">
<div style="color: rgb(0, 0, 0); background-color: rgb(255, 255,
255); font-family: times new roman,new york,times,serif;
font-size: 12pt;">
<div style="right: auto;">I took several RTU units and replaced
them with Evaporative Cooling in the Los Angeles area. In some
zones, my heating consumption went UP. Any suggestions?</div>
<div style="right: auto;"> </div>
<div style="right: auto;">John Aulbach</div>
<div style="right: auto;">Partner Energy<var id="yui-ie-cursor"></var></div>
</div>
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