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    <font size="+1">Hi Ginnie,<br>
      <font size="+1">IAQ costs money and bringing in fresh outside air
        to improve it is the solution.  Heat recovery depending on your
        climate doesn't always <font size="+1">save money but typically
          if you have hot hu<font size="+1">mid summers or cold winters
            it will.  I would first <font size="+1">take a look at your
              ERV/HRV s<font size="+1">chedule to make sure it is<font
                  size="+1">n't running 24/7.  <font size="+1">You
                    should also check it<font size="+1">'s relationship
                      with the economizers.  It should be off and byp<font
                        size="+1">assed when they are running.  You only
                        need fresh air for people when they are there
                        occupying the building.<br>
                        <font size="+1">Bruce Easterbrook P.Eng.<br>
                          <font size="+1">Abode Engineering<br>
                            <br>
                          </font></font></font></font></font></font></font></font></font></font></font></font>
    <div class="moz-cite-prefix">On 05/06/2013 11:22 AM, Ginnie
      Schofield wrote:<br>
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        <p class="MsoNormal">Equest Users:<o:p></o:p></p>
        <p class="MsoNormal"><o:p> </o:p></p>
        <p class="MsoNormal">In my school model, I have added the Heat
          Recovery option to my VAVS system in the current model, and it
          throws results clear out of line, increasing electric power
          usage almost 3 times, with increased  ventilation fan
          operation and space cooling year round, which shouldn’t be
          necessary in Wyoming.<o:p></o:p></p>
        <p class="MsoNormal"><o:p> </o:p></p>
        <p class="MsoNormal">Looking for methods to modify input and
          correct these obviously errant results.  There has been some
          discussion here earlier this week, tried a couple of the
          suggestions, without acceptable results.  If adding another
          system to handle the heat recovery or adding smaller heat
          recover to each zone is the right answer, please share the
          method for creating the new system in detailed edit mode.<o:p></o:p></p>
        <p class="MsoNormal"><o:p> </o:p></p>
        <p class="MsoNormal">Thank you in advance for your time and
          suggestions.<o:p></o:p></p>
        <p class="MsoNormal"><o:p> </o:p></p>
        <p class="MsoNormal"><o:p> </o:p></p>
        <p class="MsoNormal"><b><span
style="font-size:12.0pt;font-family:"Arial","sans-serif";color:navy">G</span></b><b><span
style="font-size:10.0pt;font-family:"Arial","sans-serif";color:navy">INNIE
            </span></b><b><span
style="font-size:12.0pt;font-family:"Arial","sans-serif";color:navy">S</span></b><b><span
style="font-size:10.0pt;font-family:"Arial","sans-serif";color:navy">CHOFIELD</span></b><b><span
style="font-size:12.0pt;font-family:"Arial","sans-serif";color:navy"><o:p></o:p></span></b></p>
        <p class="MsoNormal"><b><span
style="font-size:12.0pt;font-family:"Arial","sans-serif";color:navy">E</span></b><b><span
style="font-size:10.0pt;font-family:"Arial","sans-serif";color:navy">NGINEERING
            </span></b><b><span
style="font-size:12.0pt;font-family:"Arial","sans-serif";color:navy">D</span></b><b><span
style="font-size:10.0pt;font-family:"Arial","sans-serif";color:navy">ESIGN
            </span></b><b><span
style="font-size:12.0pt;font-family:"Arial","sans-serif";color:navy">A</span></b><b><span
style="font-size:10.0pt;font-family:"Arial","sans-serif";color:navy">SSOCIATES<o:p></o:p></span></b></p>
        <p class="MsoNormal"><span
style="font-size:10.0pt;font-family:"Arial","sans-serif";color:navy">(Ph)
            307-266-5033   (Fx) 307-234-3805<o:p></o:p></span></p>
        <p class="MsoNormal"><span
style="font-size:10.0pt;font-family:"Arial","sans-serif""><o:p> </o:p></span></p>
        <p class="MsoNormal"><span
style="font-size:12.0pt;font-family:"Arial","sans-serif";color:navy"><o:p> </o:p></span></p>
        <p class="MsoNormal"><o:p> </o:p></p>
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