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<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Century Gothic",sans-serif;color:blue">David,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Century Gothic",sans-serif;color:blue"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Century Gothic",sans-serif;color:blue">Thank you for the response. After reading from the reference material for WLHP’s, it seems as if I am able to attach any cooling unit with a water cooled
condenser to this loop. I believe this will solve the issue related to modeling only one condensing water loop for both heat pumps and other water cooled units. On the other hand, when I delete the hot water loop, I no longer have any heat source for the
types of units you listed (fan-coil units, AHU heating coils). Am I understanding the methodology you described correctly?<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Century Gothic",sans-serif;color:blue"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Century Gothic",sans-serif;color:blue">Thank you,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Century Gothic",sans-serif;color:blue"><o:p> </o:p></span></p>
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<p class="MsoNormal"><b><span style="font-size:10.0pt;font-family:"Century Gothic",sans-serif;color:#FF9B26">Patrick Krystyniak</span></b><span style="font-size:10.0pt;font-family:"Century Gothic",sans-serif;color:#FF9B26"><o:p></o:p></span></p>
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Phone: (212) 330-6174<br>
Fax: (212) 695-1898<br>
<a href="mailto:patrick.krystyniak@stantec.com"><span style="color:black;text-decoration:none">patrick.krystyniak@stantec.com</span></a><o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:10.0pt;font-family:Webdings;color:#008040">ü</span><span style="color:blue"> </span><span style="font-size:7.0pt;font-family:"Century Gothic",sans-serif;color:#008040">Please consider the environment before printing
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<p class="MsoNormal"><b><span style="font-size:11.0pt;font-family:"Calibri",sans-serif">From:</span></b><span style="font-size:11.0pt;font-family:"Calibri",sans-serif"> David Eldridge [mailto:DEldridge@grummanbutkus.com]
<br>
<b>Sent:</b> Monday, February 27, 2017 4:15 PM<br>
<b>To:</b> equest-users@lists.onebuilding.org<br>
<b>Cc:</b> Krystyniak, Patrick <patrick.krystyniak@stantec.com><br>
<b>Subject:</b> RE: [Equest-users] eQuest Hot water Loop and WLHP<o:p></o:p></span></p>
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<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D">Here’s some reference material – do a “find” for
<i><u>circulation-loop</u></i> on page 229 (236 of the PDF) which will explain the type of loops used in eQUEST and how these compare to the naming/purpose in industry.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D"><a href="http://doe2.com/download/DOE-22/DOE22Vol2-Dictionary_48r.pdf">http://doe2.com/download/DOE-22/DOE22Vol2-Dictionary_48r.pdf</a><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">eQUEST has the “WLHP” type in order to define the behavior for heating and cooling on the terminal unit side and allowing the appropriate controls to be used
at association with HP, towers, and boilers.<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 need to use the loop of type WLHP to have the functionality of the temperature control with a max and min, and you can attach both boilers and cooling towers
to this type of loop. (You cannot attach a cooling tower to a loop that is the type heating.)<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">Commonly from the design engineering side would be that one common piping loop is the condenser loop (in eQUEST the WLHP type loop) and then the boiler and cooling
tower can be attached to that loop as primary or secondary connections. That definition will occur within their own dialog screens depending how you specify the pumping configuration.<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">So I think what you need to do from the description is go to the boilers that you already defined and associate them to the WLHP loop, and delete the hot water
loop – this would be used for a heating system such as fan-coil units, AHU heating coils, perimeter heating, or reheat coils for instance.<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">David<o:p></o:p></span></p>
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<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>
<p class="MsoNormal"><u><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:black">
</span></u><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:8.0pt;font-family:"Calibri",sans-serif;color:black"> </span><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">David S. Eldridge, Jr., P.E., LEED AP BD+C, BEMP, BEAP, HBDP<o:p></o:p></span></p>
<p class="MsoNormal"><b><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#244061">Grumman/Butkus Associates</span></b><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D"><o:p></o:p></span></p>
<p class="MsoNormal"><u><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:black">
</span></u><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:black"> </span><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D"><o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D"><o:p> </o:p></span></p>
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<p class="MsoNormal"><b><span style="font-size:11.0pt;font-family:"Calibri",sans-serif">From:</span></b><span 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>On Behalf Of </b>Krystyniak, Patrick via Equest-users<br>
<b>Sent:</b> Monday, February 27, 2017 9:43 AM<br>
<b>To:</b> <a href="mailto:equest-users@lists.onebuilding.org">equest-users@lists.onebuilding.org</a><br>
<b>Subject:</b> [Equest-users] eQuest Hot water Loop and WLHP<o:p></o:p></span></p>
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<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Century Gothic",sans-serif">Hello All,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Century Gothic",sans-serif"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Century Gothic",sans-serif">I have a question regarding loops in eQuest. The building I am modeling has water source heat pumps and other water cooled air conditioning units. Per the building
design all of these are on the same hot water loop (boilers) and condenser water loop (cooling towers). However, in eQuest when I specify the heating source for the heat pumps as “DX Coils (Heat Pump)” a WLHP loop is created. This then requires its own
boiler and cooling tower. What would be the best practice to model this correctly? Two options I have considered would be to change all the heating sources of the heat pumps to “hot water loop”, but do not think it will provide the same outputs. The other
option was to keep the two loops and size each boiler as a fraction with respect to the capacity of the units. Are either of these correct or is there a better method to properly model Water source heatpump and water cooled AC units?<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Century Gothic",sans-serif"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Century Gothic",sans-serif">Thank you,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Century Gothic",sans-serif"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Century Gothic",sans-serif"><o:p> </o:p></span></p>
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<p class="MsoNormal"><b><span style="font-size:10.0pt;font-family:"Century Gothic",sans-serif;color:#FF9B26">Patrick Krystyniak</span></b><span style="font-size:10.0pt;font-family:"Century Gothic",sans-serif;color:#FF9B26"><o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:9.0pt;font-family:"Century Gothic",sans-serif;color:black">Stantec<br>
315 Park Avenue South 17th Floor, New York NY 10010-3650 <br>
Phone: (212) 330-6174<br>
Fax: (212) 695-1898<br>
<a href="mailto:patrick.krystyniak@stantec.com"><span style="color:black;text-decoration:none">patrick.krystyniak@stantec.com</span></a><o:p></o:p></span></p>
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