<html><head><style type="text/css"><!-- DIV {margin:0px;} --></style></head><body><div style="font-family:times new roman,new york,times,serif;font-size:10pt"><div>FYI<br></div><div style="font-family: times new roman,new york,times,serif; font-size: 10pt;"><br><div style="font-family: times new roman,new york,times,serif; font-size: 12pt;"><font face="Tahoma" size="2">----- Forwarded Message ----<br><b><span style="font-weight: bold;">From:</span></b> "Hammerling, Steve" <br><b><span style="font-weight: bold;">To:</span></b> "paul.diglio@sbcglobal.net" <paul.diglio@sbcglobal.net><br><b><span style="font-weight: bold;">Sent:</span></b> Wed, December 1, 2010 9:05:08 AM<br><b><span style="font-weight: bold;">Subject:</span></b> FW: 90.1-2007 G3.1.3.10 Question<br></font><br>
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<p class="MsoPlainText"><span style="font-size: 11pt;">Mr. Diglio,
<br>
<br>
I received a reply from the chair of the subcommittee that authored Appendix G. He notes the following:</span></p>
<p class="MsoPlainText"><span style="font-size: 11pt;"> </span></p>
<p class="MsoPlainText"><b><i><span style="font-size: 11pt;">I have always interpreted that as 22 W/gpm for the entire pumping system so if multiple pumps are used they need to add up to 22 W/gpm. It is up to the modeler to
decide how to split the 22 W/gpm up.</span></i></b></p>
<p class="MsoPlainText"><span style="font-size: 11pt;"> </span></p>
<p class="MsoPlainText"><span style="font-size: 11pt; color: black;">I hope this information is useful to you.
</span></p>
<p class="MsoPlainText"><span style="font-size: 11pt; color: black;"> </span></p>
<p class="MsoPlainText"><span style="font-size: 11pt;">Sincerely</span></p>
<p class="MsoPlainText"><span style="font-size: 11pt; color: black;">Steve Hammerling</span></p>
<p class="MsoPlainText"><span style="font-size: 11pt; color: black;">Technical Services Engineer</span></p>
<p class="MsoPlainText"><span style="color: black;"> </span></p>
<p class="MsoPlainText"><span style="color: black;"> </span></p>
<p class="MsoPlainText"><span style="color: black;"> </span></p>
<p class="MsoPlainText">> *From:*Paul Diglio [mailto:paul.diglio@sbcglobal.net]</p>
<p class="MsoPlainText">> *Sent:* Wednesday, November 17, 2010 10:15 AM</p>
<p class="MsoPlainText">> *To:* ASHRAE (Internet Email)</p>
<p class="MsoPlainText">> *Subject:* 90.1-2007 G3.1.3.10 Question</p>
<p class="MsoPlainText">> </p>
<p class="MsoPlainText">> Dear Sir or Madam:</p>
<p class="MsoPlainText">> </p>
<p class="MsoPlainText">> I have a question concerning the pumping power requirement</p>
<p class="MsoPlainText">> in the above section.</p>
<p class="MsoPlainText">> </p>
<p class="MsoPlainText">> For a primary-secondary loop design, does the 22w/gpm</p>
<p class="MsoPlainText">> include both pumps or is it 22w/gpm per pump?</p>
<p class="MsoPlainText">> </p>
<p class="MsoPlainText">> Thank you,</p>
<p class="MsoPlainText">> </p>
<p class="MsoPlainText">> Paul Diglio</p>
<p class="MsoPlainText">> 203-415-0082</p>
<p class="MsoPlainText">> </p>
<p class="MsoPlainText"> </p>
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<div><font face="Arial"><font color="black" size="2">Steve Hammerling, Assistant Manager of Research & Technical Services<br></font></font><font face="Arial"><font color="black" size="2">American Society of Heating, Refrigerating and Air-Conditioning Engineers, Inc<br>1791 Tullie Cir. Atlanta, GA 30329</font></font></div>
<div><font face="Arial"><font color="black"><font size="2">Direct Line: 678-539-1158 Fax: 678-539-2158 eMail: shammerling@ashrae.org Web: </font><a rel="nofollow" target="_blank" href="http://www.ashrae.org/"><font size="2">www.ASHRAE.org</font></a><br></font></font></div>
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