The easiest way without getting too complicated would be to do a Save As, go back into the wizard, change the gal/person/day value, run the wizard, and see what the new source flow GPM value should be on your Domestic Water Loop.  This should be located under the Process Loads tab.  Now go back to your original model and update the flow value.<div>
<br></div><div>Outside of that method, you can create a spreadsheet that totals the number of full load hours in the schedule you're using for the DHW process flow and calculate the total gallons per day based on that.  Adjust the GPM as necessary to achieve the total gallons number you're shooting for.</div>
<div><br></div><div><p class="MsoNormal"><a name="_MailAutoSig"><span style="font-family:"Franklin Gothic Demi","sans-serif";color:#632423">Robby Oylear, </span></a><span style="font-size:10.0pt;font-family:"Franklin Gothic Demi","sans-serif";color:#632423">PE, LEED
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<div><br></div><div><br><br><div class="gmail_quote">On Tue, Aug 21, 2012 at 12:50 PM, Daniel Sze <span dir="ltr"><<a href="mailto:dsze314159@gmail.com" target="_blank">dsze314159@gmail.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
Hello People,<div><br></div><div>A simple question today:</div><div><br></div><div>how can I change the amount of hot water used in gallons/person/day without going into the Wizards?</div><div><br></div><div>Thank you in advance.</div>

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