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<p class="MsoNormal"><span style="color:#1F497D">I missed the earlier posts in this thread, but I always avoid assign systems in the wizard shell inputs. Such inputs override whatever you might input for the HVAC system anyway, if I’m not mistaken.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">In your case, I’d default out all shell assignment fields in HVAC System 1, then define the other system types (HVAC System 2,3,4), then open shell 1 and navigate to the zone assignment screen towards the back,
where you can assign some or all zones to specific systems as you’ve defined them. Do the same for each shell. Note in the same shell screen, you can define zonal exhaust (such as for restrooms), as occurring.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">Does that make sense?<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
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<p class="MsoNormal"><span style="color:#1F497D"><img width="119" height="37" id="Picture_x0020_1" src="cid:image001.jpg@01CF661A.55F5F900" alt="cid:489575314@22072009-0ABB"></span><b><span style="font-family:"Stylus BT","sans-serif";color:#2D4D5E"><o:p></o:p></span></b></p>
<p class="MsoNormal"><b><span style="font-family:"Stylus BT","sans-serif";color:#2D4D5E"><o:p> </o:p></span></b></p>
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<p class="MsoNormal"><span style="font-size:7.5pt;color:#CC9900"><o:p> </o:p></span></p>
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<p class="MsoNormal"><span style="font-size:10.0pt;color:#2D4D5E">25501 west valley parkway, suite 200<o:p></o:p></span></p>
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</span></u><span style="color:#1F497D"><o:p></o:p></span></p>
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<p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
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<p class="MsoNormal"><b><span style="font-size:10.0pt;font-family:"Tahoma","sans-serif"">From:</span></b><span style="font-size:10.0pt;font-family:"Tahoma","sans-serif""> equest-users-bounces@lists.onebuilding.org [mailto:equest-users-bounces@lists.onebuilding.org]
<b>On Behalf Of </b>Chris Baker<br>
<b>Sent:</b> Friday, May 02, 2014 3:06 PM<br>
<b>To:</b> Brian Fountain<br>
<b>Cc:</b> equest-users@lists.onebuilding.org<br>
<b>Subject:</b> Re: [Equest-users] DD Wizard - Air-side System Type Question<o:p></o:p></span></p>
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<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><span style="color:#1F497D">Brian,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">Sorry! I plan on assigning the zone groupings anyway which will supersede the HVAC assignments but I’m just wondering how this would normally be done.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">I currently have one air-side system (the default HVAC System 1).<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"><img border="0" width="468" height="336" id="Picture_x0020_2" src="cid:image002.jpg@01CF661A.55F5F900"><o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">I want the current air-side system (HVAC System 1) to apply only to shell 4 and 5. I want the other shells to apply to a new system.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">But when I create a new system for shells 1,2,3 I then can’t go back and remove those shell components in green from “HVAC System 1”.
<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">(Under System Assignment to Thermal Zones).<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"><img border="0" width="466" height="336" id="Picture_x0020_3" src="cid:image003.jpg@01CF661A.55F5F900"><o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">By default all shells are listed in “HVAC System 1”. From what I can tell there is now way to create a new air-side system and then remove shell components from the original “HVAC System 1”.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">It will let me add Shell 1,2,3 to the new system but it won’t let me remove shells 1,2,3 from the other system – if that makes sense.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">In other words some zones end up being listed on both systems with no way to remove them where I need to.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">Not an issue for modeling since the zone grouping supersedes this but it just seems odd that I can select a system per shell but cannot remove a shell listed in green if it doesn’t apply to said system.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">Is there a way to do this that I’m overlooking?<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">Chris Baker<br>
CCI CAD Drafter<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
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<p class="MsoNormal"><b><span style="font-size:10.0pt;font-family:"Tahoma","sans-serif"">From:</span></b><span style="font-size:10.0pt;font-family:"Tahoma","sans-serif""> Brian Fountain [<a href="mailto:bfountain@greensim.com">mailto:bfountain@greensim.com</a>]
<br>
<b>Sent:</b> Wednesday, April 30, 2014 6:46 PM<br>
<b>To:</b> Chris Baker<br>
<b>Cc:</b> <a href="mailto:equest-users@lists.onebuilding.org">equest-users@lists.onebuilding.org</a><br>
<b>Subject:</b> RE: DD Wizard - Air-side System Type Question<o:p></o:p></span></p>
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<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><span lang="EN-CA" style="color:#1F497D">I am not sure that I fully understand what is happening but will take a stab at helping anyway (which is always dangerous).<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-CA" style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-CA" style="color:#1F497D">There are 2 places in the DD wizard you can assign portions of a building to different air-side HVAC systems: the 1<sup>st</sup> screen of the air-side HVAC definition (I ignore this), and screen
14 of each Shell – the zone grouping screen. What you can do in the 1<sup>st</sup> screen of the HVAC is limited and is superceded by screen 14 – the zone grouping of the shells.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-CA" style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-CA" style="color:#1F497D">So, my practise is to:
<o:p></o:p></span></p>
<p class="MsoListParagraph" style="text-indent:-.25in;mso-list:l0 level1 lfo2"><![if !supportLists]><span lang="EN-CA" style="color:#1F497D"><span style="mso-list:Ignore">1)<span style="font:7.0pt "Times New Roman"">
</span></span></span><![endif]><span lang="EN-CA" style="color:#1F497D">Define separate zone groups for different HVAC systems in the shells definition (if all zones in a shell are the same HVAC system, that’s fine)<o:p></o:p></span></p>
<p class="MsoListParagraph" style="text-indent:-.25in;mso-list:l0 level1 lfo2"><![if !supportLists]><span lang="EN-CA" style="color:#1F497D"><span style="mso-list:Ignore">2)<span style="font:7.0pt "Times New Roman"">
</span></span></span><![endif]><span lang="EN-CA" style="color:#1F497D">Define all the air-side HVAC system types<o:p></o:p></span></p>
<p class="MsoListParagraph" style="text-indent:-.25in;mso-list:l0 level1 lfo2"><![if !supportLists]><span lang="EN-CA" style="color:#1F497D"><span style="mso-list:Ignore">3)<span style="font:7.0pt "Times New Roman"">
</span></span></span><![endif]><span lang="EN-CA" style="color:#1F497D">Go back to the zone grouping screen (DD wizard shell screen 14) for each shell and assign the HVAC system for each of the zone groups in that shell.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-CA" style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-CA" style="color:#1F497D">I hope this helps – let me know if I missed the mark.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-CA" style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-CA" style="color:#1F497D">Cheers,<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-CA" style="color:#1F497D">BF<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-CA" style="color:#1F497D"><o:p> </o:p></span></p>
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<p class="MsoNormal"><b><span style="font-size:10.0pt;font-family:"Tahoma","sans-serif"">From:</span></b><span style="font-size:10.0pt;font-family:"Tahoma","sans-serif""> Chris Baker [<a href="mailto:CBaker@cci-alliance.com">mailto:CBaker@cci-alliance.com</a>]
<br>
<b>Sent:</b> Wednesday, April 30, 2014 9:10 PM<br>
<b>To:</b> <a href="mailto:equest-users@lists.onebuilding.org">equest-users@lists.onebuilding.org</a>; Brian Fountain (<a href="mailto:bfountain@greensim.com">bfountain@greensim.com</a>)<br>
<b>Subject:</b> DD Wizard - Air-side System Type Question<o:p></o:p></span></p>
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<p class="MsoNormal"><span lang="EN-CA"><o:p> </o:p></span></p>
<p class="MsoNormal">So I have a building with 5 shell components all listed in the project navigator.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Shells 1,2,3 have an HRV system (air-side)<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Shells 4,5 have an HVAC system with vav box and reheat coils (air-side)<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">I want my system per area assignment to be “System per Shell”. So it should be organized as such.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">However, for some reason it keeps showing all shells on the default “HVAC System 1” (in green text) and they cannot be removed from the list and then added to the other air-side system.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">All I want to do is split the shells into two different air-side systems but it automatically compiles all shells into the first (original) HVAC system 1. If I change the green text to “undefined” it defaults back to the original shell
and is therefore unchangeable.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">When I create the “new” HRV air side system it doesn’t show any shells assigned. It will let me choose whatever shells I want but I then can’t remove those shells from the other (HVAC) system – if that makes sense.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">What am I missing here? <o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">I’m still in the process of Grouping my zones because the project manager is working on getting me the information regarding space allocation (Sheet 13 I believe in DD wizard).<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Does the zone grouping need to be done before I add a second air-side system?<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">I’ve tried adding shells 1,2,3 to the HRV system (the new one) and then removing the green text for those shells from “HVAC System 1” but it just doesn’t work.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Any help is appreciated. Thank you.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Chris Baker<br>
CCI CAD Drafter<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><span style="font-size:12.0pt;font-family:"Times New Roman","serif""><o:p> </o:p></span></p>
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