<html><head><base href="x-msg://482/"></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; ">An air source heat pump attached to a water loop can either be modelled as a heat pump chiller attached to a two-pipe water loop, or you can use an electric boiler with an EIR at the heat pump's EIR. This doesn't capture the part load performance or the dependence on outdoor air temperatures; to capture this you will need to create hourly reports of the boiler demand, correlate these with the outdoor air temperature, and use the performance curves to calculate the actual energy usage of the boiler/heat pump. <div><br></div><div>All the best,</div><div>Dan</div><div><div><div><br><div>
<span class="Apple-style-span" style="border-collapse: separate; color: rgb(0, 0, 0); font-family: Verdana; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; orphans: 2; text-align: -webkit-auto; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-border-horizontal-spacing: 0px; -webkit-border-vertical-spacing: 0px; -webkit-text-decorations-in-effect: none; -webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0px; font-size: medium; ">—<br>Daniel Knapp, PhD, LEED® AP O+M<br><a href="mailto:danielk@arborus.ca">danielk@arborus.ca</a><br><br>Arborus Consulting<br>Energy Strategies for the Built Environment<br>www.arborus.ca<br>76 Chamberlain Avenue <br>Ottawa, ON, K1S 1V9 <br>Phone: (613) 234-7178 ext. 113<br>Fax: (613) 234-0740<br><span></span><br><br></span>
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<br><div><div>On 2011-08-04, at 10:44 PM, Wong, Cheuk Yiu Daniel wrote:</div><br class="Apple-interchange-newline"><blockquote type="cite"><span class="Apple-style-span" style="border-collapse: separate; font-family: Verdana; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; orphans: 2; text-align: -webkit-auto; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-border-horizontal-spacing: 0px; -webkit-border-vertical-spacing: 0px; -webkit-text-decorations-in-effect: none; -webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0px; font-size: medium; "><div><div><div><br class="webkit-block-placeholder"></div><div class="WordSection1" style="page: WordSection1; "><div style="margin-top: 0cm; margin-right: 0cm; margin-left: 0cm; margin-bottom: 0.0001pt; font-size: 12pt; font-family: Calibri, sans-serif; "><span lang="EN-US">Dear all equest users,<o:p></o:p></span></div><div style="margin-top: 0cm; margin-right: 0cm; margin-left: 0cm; margin-bottom: 0.0001pt; font-size: 12pt; font-family: Calibri, sans-serif; "><span lang="EN-US"><o:p> </o:p></span></div><div style="margin-top: 0cm; margin-right: 0cm; margin-left: 0cm; margin-bottom: 0.0001pt; font-size: 12pt; font-family: Calibri, sans-serif; "><span lang="EN-US">This is my first trial in equest. I am now simulating a 4 pipe system with chillers for cooling and air source heat pump for heating.<o:p></o:p></span></div><div style="margin-top: 0cm; margin-right: 0cm; margin-left: 0cm; margin-bottom: 0.0001pt; font-size: 12pt; font-family: Calibri, sans-serif; "><span lang="EN-US">In wizard mode, only boiler can be selected for the hot water loop. How can I change boiler to air source heat pump in detail mode?<o:p></o:p></span></div><div style="margin-top: 0cm; margin-right: 0cm; margin-left: 0cm; margin-bottom: 0.0001pt; font-size: 12pt; font-family: Calibri, sans-serif; "><span lang="EN-US"><o:p> </o:p></span></div><div style="margin-top: 0cm; margin-right: 0cm; margin-left: 0cm; margin-bottom: 0.0001pt; font-size: 12pt; font-family: Calibri, sans-serif; "><span lang="EN-US">Thank you .<o:p></o:p></span></div><div style="margin-top: 0cm; margin-right: 0cm; margin-left: 0cm; margin-bottom: 0.0001pt; font-size: 12pt; font-family: Calibri, sans-serif; "><span lang="EN-US"><o:p> </o:p></span></div><div style="margin-top: 0cm; margin-right: 0cm; margin-left: 0cm; margin-bottom: 0.0001pt; font-size: 12pt; font-family: Calibri, sans-serif; "><span lang="EN-US">Regards,<o:p></o:p></span></div><div style="margin-top: 0cm; margin-right: 0cm; margin-left: 0cm; margin-bottom: 0.0001pt; font-size: 12pt; font-family: Calibri, sans-serif; "><b><span lang="EN-US" style="font-size: 9pt; font-family: Arial, sans-serif; color: black; ">Daniel C Y Wong</span></b><span lang="EN-US" style="font-size: 9pt; font-family: Arial, sans-serif; color: black; "><o:p></o:p></span></div><div style="margin-top: 0cm; margin-right: 0cm; margin-left: 0cm; margin-bottom: 0.0001pt; font-size: 12pt; font-family: Calibri, sans-serif; "><span lang="EN-US" style="font-size: 9pt; font-family: Arial, sans-serif; color: black; ">Project Engineer<br><br></span><span lang="EN-US"><o:p></o:p></span></div><div style="margin-top: 0cm; margin-right: 0cm; margin-left: 0cm; margin-bottom: 0.0001pt; font-size: 12pt; font-family: Calibri, sans-serif; "><span lang="EN-US"><o:p> </o:p></span></div></div><div><br class="webkit-block-placeholder"></div><span><p class="MsoPlainText" style="margin-top: 0in; margin-right: 0in; margin-bottom: 0pt; margin-left: 0in; "><span style="font-size: 7pt; font-family: Arial, sans-serif; "><span style="font-size: 7pt; font-family: Arial, sans-serif; "><span style="font-size: 7pt; font-family: Arial, sans-serif; "></span></span></span> </p><div style="margin-top: 0in; margin-right: 0in; margin-bottom: 0pt; margin-left: 0in; "><span style="font-size: 7pt; font-family: Arial, sans-serif; "><span style="font-size: 7pt; font-family: Arial, sans-serif; "><span style="font-size: 7pt; font-family: Arial, sans-serif; ">This electronic communication, which includes any files or attachments thereto, contains proprietary or confidential information and may be privileged and otherwise protected under copyright or other applicable intellectual property laws. 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The electronic data should be verified against the hard copy.</span></span></span></div><pre class="MsoPlainText" style="margin-top: 0in; margin-right: 0in; margin-bottom: 0pt; margin-left: 0in; "><span style="font-size: 7pt; font-family: Arial, sans-serif; "><span style="font-size: 7pt; font-family: Arial, sans-serif; "></span></span> </pre><div style="margin-top: 0in; margin-right: 0in; margin-bottom: 0pt; margin-left: 0in; "><font size="1"><span style="font-size: 7pt; font-family: Arial, sans-serif; ">Please consider the environment before printing this e-mail.</span></font></div></span>.</div>_______________________________________________<br>Equest-users mailing list<br><a href="http://lists.onebuilding.org/listinfo.cgi/equest-users-onebuilding.org" style="color: blue; text-decoration: underline; ">http://lists.onebuilding.org/listinfo.cgi/equest-users-onebuilding.org</a><br>To unsubscribe from this mailing list send a blank message to<span class="Apple-converted-space"> </span><a href="mailto:EQUEST-USERS-UNSUBSCRIBE@ONEBUILDING.ORG" style="color: blue; text-decoration: underline; ">EQUEST-USERS-UNSUBSCRIBE@ONEBUILDING.ORG</a><br></div></span></blockquote></div><br></div></div></div></body></html>