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</o:shapelayout></xml><![endif]--></head><body lang=EN-US link="#0563C1" vlink="#954F72"><div class=WordSection1><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>I did <u>exactly</u> this for a recent job for the same reasons (lockouts between setpoints for heat recovery operation). <o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>The only extra caution is – this is actually very easy to do, but be mindful you’ll end up adding approximately 400 components to your model after import (between the day/week/annual schedules). If your model is already in or certain to reach “overweight” territory in terms of loading/simulation times, it may be advisable to push this towards the end of your to-do list for model development (if feasible).<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>If you want to more quickly/lightly <i>approximate</i> the savings for all seasons, you could run an hourly of your exhaust air temps at the heat recovery to come up with an annual median, then consider that exhaust temperature in relation to your 55/72 “lockout targets” to come up with an “averaged absolute annual differential” to use in combination with ERV-RECOVER-MODE = OA-HEAT/COOL. This will deliberately overstate cooling recovery + understate heating recovery operation (or vice versa), but would hopefully ballpark what’s happening on an annual savings basis well enough. <o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>You could also “tune” the “light” approach to adjust the delta input in combination with a model fork using the “imported spoon-fed operation” approach (you may want to develop that schedule anyway for eventual import/use, so it wouldn’t be wasted time), but again I’d probably be inclined to ultimately land on that more “locked in” solution and just plan my model development around doing that last or towards the end.<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>~Nick<o:p></o:p></span></p><div><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Arial","sans-serif";color:#3A7A46'>---------------------------------------------------------------------------------------------------------------------------------------------<o:p></o:p></span></p><p class=MsoNormal><b><span style='font-size:11.0pt;font-family:"Arial","sans-serif";color:#3A7A46'>Nick Caton, P.E.</span></b><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#3A7A46'><o:p></o:p></span></p><table class=MsoNormalTable border=1 cellspacing=0 cellpadding=0 width=706 style='width:7.35in;border-collapse:collapse;border:none'><tr><td width=240 valign=top style='width:2.5in;border:none;padding:0in 0in 0in 0in'><p class=MsoNormal><span style='font-size:8.0pt;font-family:"Arial","sans-serif";color:#626469'> Senior Energy Engineer</span><span style='font-size:8.0pt;font-family:"Arial","sans-serif";color:#1F497D'><br></span><span style='font-size:8.0pt;font-family:"Arial","sans-serif";color:#626469'> Energy and Sustainability Services</span><span style='font-size:8.0pt;font-family:"Arial","sans-serif";color:#1F497D'><br></span><span style='font-size:8.0pt;font-family:"Arial","sans-serif";color:#626469'> North America Operations</span><span style='font-size:8.0pt;font-family:"Arial","sans-serif";color:#1F497D'><br></span><span style='font-size:8.0pt;font-family:"Arial","sans-serif";color:#626469'> Schneider Electric</span><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p></o:p></span></p></td><td width=233 valign=top style='width:174.9pt;border:none;padding:0in 0in 0in 0in'><p class=MsoNormal><span style='font-size:8.0pt;font-family:"Arial","sans-serif";color:#57B069'>D </span><span style='font-size:8.0pt;font-family:"Arial","sans-serif";color:#626469'>913.564.6361 </span><span 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style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p></o:p></span></p></td><td width=232 valign=top style='width:174.3pt;border:none;padding:0in 0in 0in 0in'><p class=MsoNormal align=right style='text-align:right'><span style='font-size:8.0pt;font-family:"Arial","sans-serif";color:#626469'>15200 Santa Fe Trail Drive<br>Suite 204<br>Lenexa, KS 66219<br>United States</span><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p></o:p></span></p></td></tr><tr><td width=240 valign=top style='width:2.5in;border:none;padding:0in 0in 0in 0in'><p class=MsoNormal><a href="http://www.schneider-electric.com/ww/en/"><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D;text-decoration:none'><img border=0 width=149 height=27 id="_x0000_i1027" src="cid:image002.gif@01D17DF6.DDD1B530" alt="http://10.218.104.225:8090/Images/SE.comCapsule.png"></span></a><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p></o:p></span></p></td><td width=233 valign=top style='width:174.9pt;border:none;padding:0in 0in 0in 0in'><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p></td><td width=232 valign=top style='width:174.3pt;border:none;padding:0in 0in 0in 0in'><p class=MsoNormal align=right style='text-align:right'><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><img border=0 width=216 height=45 id="Picture_x0020_1" src="cid:image003.png@01D17DF6.DDD1B530"><o:p></o:p></span></p></td></tr><tr style='height:4.0pt'><td width=706 colspan=3 valign=top style='width:7.35in;border:none;padding:0in 0in 0in 0in;height:4.0pt'><p class=MsoNormal><span style='font-size:7.0pt;font-family:"Arial","sans-serif";color:#3A7A46'>*Please consider the environment before printing this e-mail</span><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#3A7A46'><o:p></o:p></span></p></td></tr></table><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p></div><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><div><div style='border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0in 0in 0in'><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 [mailto:equest-users-bounces@lists.onebuilding.org] <b>On Behalf Of </b>Lapierre, Patrick<br><b>Sent:</b> Monday, March 14, 2016 12:06 PM<br><b>To:</b> Aaron Powers; equest-users@lists.onebuilding.org<br><b>Subject:</b> Re: [Equest-users] Heat Recovery Control<o:p></o:p></span></p></div></div><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal><span lang=FR-CA style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>One way to do it would be to build a custom 8760h schedule using the schedule excel tool produced by EMIT (attached).<o:p></o:p></span></p><p class=MsoNormal><span lang=FR-CA style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>You output the outside temp of your meteo file and manually set them to On/Off according to the outside temps you mentionned below (0 between 55 and 72, 1 otherwise).<o:p></o:p></span></p><p class=MsoNormal><span lang=FR-CA style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>Then you import the schedule in your model and set your ERV to run according to this schedule.<o:p></o:p></span></p><p class=MsoNormal><span lang=FR-CA style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span lang=FR-CA style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>It’s a little longer but it will do exactly what you want to.<o:p></o:p></span></p><p class=MsoNormal><span lang=FR-CA style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span lang=FR-CA style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><table class=MsoNormalTable border=0 cellspacing=0 cellpadding=0 width="100%" style='width:100.0%;border-collapse:collapse'><tr><td width=35 style='width:26.25pt;padding:0in 0in 0in 0in'><p class=MsoNormal><a href="http://www.bpa.ca/" target="''"><span style='color:blue;text-decoration:none'><img border=0 width=31 height=34 id="_x0000_i1025" src="cid:image004.jpg@01D17DF6.DDD1B530" alt="Bouthillette Parizeau"></span></a><span style='color:#1F497D'><o:p></o:p></span></p></td><td valign=top style='padding:0in 0in 0in 0in'><p class=MsoNormal><b><span style='font-size:10.0pt;font-family:"Arial Black","sans-serif";color:#3F3F3F'>Patrick</span></b><b><span style='font-size:10.0pt;font-family:"Arial Black","sans-serif";color:#1F497D'> </span></b><b><span style='font-size:10.0pt;font-family:"Arial Black","sans-serif";color:#3F3F3F'>Lapierre</span></b><b><span style='font-size:10.0pt;font-family:"Arial","sans-serif";color:#7D7D7D'>_ing.</span></b><b><span style='font-size:10.0pt;font-family:"Arial Black","sans-serif";color:#1F497D'><o:p></o:p></span></b></p><p class=MsoNormal><span style='font-size:7.5pt;font-family:"Arial","sans-serif";color:#A5A5A5'><a href="mailto:plapierre@bpa.ca">plapierre@bpa.ca</a><o:p></o:p></span></p></td></tr></table><p class=MsoNormal><span lang=FR-CA style='font-size:7.5pt;font-family:"Arial","sans-serif";color:#BFBFBF'> </span><span lang=FR-CA style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p></o:p></span></p><p class=MsoNormal><b><span lang=FR style='font-size:11.0pt;font-family:"Calibri","sans-serif"'>De :</span></b><span lang=FR style='font-size:11.0pt;font-family:"Calibri","sans-serif"'> Equest-users [<a href="mailto:equest-users-bounces@lists.onebuilding.org">mailto:equest-users-bounces@lists.onebuilding.org</a>] <b>De la part de</b> Aaron Powers<br><b>Envoyé :</b> 14 mars 2016 12:56<br><b>À :</b> <a href="mailto:equest-users@lists.onebuilding.org">equest-users@lists.onebuilding.org</a><br><b>Objet :</b> [Equest-users] Heat Recovery Control<o:p></o:p></span></p><p class=MsoNormal><span lang=FR-CA><o:p> </o:p></span></p><div><div><div><p class=MsoNormal style='margin-bottom:12.0pt'><span lang=FR-CA>I'm trying to model a heat recovery device on a 100% OA VAV unit. The supply air temperature setpoint is a constant 55 F throughout the year. To maximize the savings, we will be locking out the heat recovery when the outside air is between 55 and 72 F. When the outside drybulb is less than 55, we will have pre/re-heat savings, and when the outside drybulb is greater than 72 we will have sensible cooling savings. The closest control scheme that I can find to this in eQuest is to set ERV-RUN-CTRL = "OA Exhaust DT", set ERV-RECOVER-MODE = "OA Cooling" and OA-EXHAUST-DT = 0. But unfortunately, this will not pick up the heating savings. <o:p></o:p></span></p></div><p class=MsoNormal style='margin-bottom:12.0pt'><span lang=FR-CA>Does anyone know of a better way to model this control?<o:p></o:p></span></p></div><p class=MsoNormal><span lang=FR-CA>Aaron<o:p></o:p></span></p></div><p class=MsoNormal><span lang=FR-CA><br>______________________________________________________________________<br>This email has been scanned by the Symantec Email Security.cloud service.<br>______________________________________________________________________<o:p></o:p></span></p></div></body></html>