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<p class=MsoNormal>All,<o:p></o:p></p>

<p class=MsoNormal><o:p> </o:p></p>

<p class=MsoNormal>So I set up a DOAS system as a PSZ, set a dummy, and set the
terminal heat pumps to pull OA from system (which I believe means it is pulling
OA from my adiabatic dummy zone). That’s fine and seems to work for the
most part. <o:p></o:p></p>

<p class=MsoNormal><o:p> </o:p></p>

<p class=MsoNormal>However, now I want to add an ERV. The issue with this is
the only viable option I can find is to select individual ERV’s on each
system rather than one prior to the heating/cooling coils. There does not seem
to be any way to specify a location of the exhausted air from the zones to feed
through a single DOAS exhaust. Normally, I would just accept the fact that a
more refined system would yield results that are slightly off but are close
enough. However, with these heat pumps, it’s a different story. The air
entering each heat pump (which I’ve got modeled as a PVVT…no idea
if that’s the best way – the DOE2 manual says that systems=HP,
PVVT, PSZ, or PVAVS can be used…comments?) needs to be conditioned to at
least 60F during the heating season for the units to provide adequate conditioning.
When I put on the individual system ERV’s, I get goofy results.<o:p></o:p></p>

<p class=MsoNormal><o:p> </o:p></p>

<p class=MsoNormal>Has anyone had any success setting up a system like the one
I’ve attached (sorry about the quickie diagram, but it should serve my
point)? I can’t wait until DOAS systems don’t need to do this
round-about crap in eQuest…I believe it’s one of the upcoming
features.<o:p></o:p></p>

<p class=MsoNormal><o:p> </o:p></p>

<p class=MsoNormal>Thanks all!<o:p></o:p></p>

<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><b><i><span
style='font-size:12.0pt;font-family:"Garamond","serif";color:green'>Eric
O'Neill</span></i></b><span style='font-size:12.0pt;font-family:"Times New Roman","serif"'>
<br>
</span><span style='font-size:10.0pt;font-family:"Garamond","serif";color:gray'>Mechanical
Engineer</span><span style='font-size:12.0pt;font-family:"Times New Roman","serif"'>
<br>
</span><span style='font-size:10.0pt;font-family:"Garamond","serif";color:gray'>Sustainability
Division - Michaels Engineering</span><span style='font-size:12.0pt;font-family:
"Times New Roman","serif"'> <o:p></o:p></span></p>

<p class=MsoNormal><span style='font-size:7.5pt;font-family:"Arial","sans-serif";
color:gray'>400 Main St. Suite 200</span> <br>
<span style='font-size:7.5pt;font-family:"Arial","sans-serif";color:gray'>La
Crosse, WI 54601</span><br>
<span style='font-size:7.5pt;font-family:"Arial","sans-serif";color:gray'>office:
608-785-1900<o:p></o:p></span></p>

<p class=MsoNormal><span style='font-size:7.5pt;font-family:"Arial","sans-serif";
color:gray'>direct: 608-785-3328</span><br>
<span style='font-size:7.5pt;font-family:"Arial","sans-serif";color:gray'>fax:
608-784-2270</span> <br>
<span style='font-size:7.5pt;font-family:"Arial","sans-serif";color:gray'>elo@michaelsengineering.com</span>
<br>
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href="http://www.michaelsengineering.com"><span style='color:blue'>http://www.michaelsengineering.com</span></a></span>
<o:p></o:p></p>

<p class=MsoNormal><o:p> </o:p></p>

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