<html xmlns:v="urn:schemas-microsoft-com:vml" xmlns:o="urn:schemas-microsoft-com:office:office" xmlns:w="urn:schemas-microsoft-com:office:word" xmlns:st1="urn:schemas-microsoft-com:office:smarttags" xmlns="http://www.w3.org/TR/REC-html40">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=us-ascii">
<meta name="Generator" content="Microsoft Word 11 (filtered medium)">
<!--[if !mso]>
<style>
v\:* {behavior:url(#default#VML);}
o\:* {behavior:url(#default#VML);}
w\:* {behavior:url(#default#VML);}
.shape {behavior:url(#default#VML);}
</style>
<![endif]--><o:SmartTagType namespaceuri="urn:schemas-microsoft-com:office:smarttags" name="PostalCode" /><o:SmartTagType namespaceuri="urn:schemas-microsoft-com:office:smarttags" name="State" /><o:SmartTagType namespaceuri="urn:schemas-microsoft-com:office:smarttags" name="place" /><o:SmartTagType namespaceuri="urn:schemas-microsoft-com:office:smarttags" name="City" /><o:SmartTagType namespaceuri="urn:schemas-microsoft-com:office:smarttags" name="Street" /><o:SmartTagType namespaceuri="urn:schemas-microsoft-com:office:smarttags" name="address" /><!--[if !mso]>
<style>
st1\:*{behavior:url(#default#ieooui) }
</style>
<![endif]--><style>
<!--
/* Font Definitions */
@font-face
{font-family:"Gill Sans MT";
panose-1:2 11 5 2 2 1 4 2 2 3;}
/* Style Definitions */
p.MsoNormal, li.MsoNormal, div.MsoNormal
{margin:0in;
margin-bottom:.0001pt;
font-size:12.0pt;
font-family:"Times New Roman";}
a:link, span.MsoHyperlink
{color:blue;
text-decoration:underline;}
a:visited, span.MsoHyperlinkFollowed
{color:purple;
text-decoration:underline;}
span.EmailStyle17
{mso-style-type:personal-compose;
font-family:Arial;
color:windowtext;}
@page Section1
{size:8.5in 11.0in;
margin:1.0in 1.25in 1.0in 1.25in;}
div.Section1
{page:Section1;}
-->
</style>
</head>
<body lang="EN-US" link="blue" vlink="purple">
<div class="Section1">
<p class="MsoNormal"><font size="2" face="Arial"><span style="font-size:10.0pt;
font-family:Arial">Hi Everyone,<o:p></o:p></span></font></p>
<p class="MsoNormal"><font size="2" face="Arial"><span style="font-size:10.0pt;
font-family:Arial">I am trying to size my baseline for the 20 deg T between supply air temp and room temp. I have done many searches on this and have found a partial answer to
my question, but not an exact answer. When I set MIN-SUPPLY-TEMP=55 for each system and DESIGN-COOL-T=75 for each zone, I get some very low CFM/Ton values. I have three systems: two System 6 VAV with PFP and one System 4 Heat Pump. The System 6 values are
280 and 284 CFM/ton, and the HP value is 388 CFM/ton, as shown in the system summary reports. Doing a quick Q=1.08cfm*dT check, the delta T for the systems are 39.5, 39.2, 28.6 deg T respectively. Am I doing something wrong here? One way I thought of fixing
it would be to take the calculated cooling capacity, and calculate the CFM using a 20 deg dT, then plugging that CFM into each zone. Any thoughts or suggestions? Thanks.<o:p></o:p></span></font></p>
<p class="MsoNormal"><font size="2" face="Arial"><span style="font-size:10.0pt;
font-family:Arial"><o:p> </o:p></span></font></p>
<p class="MsoNormal"><em><b><i><font size="3" color="#333399" face="Times New Roman"><span style="font-size:12.0pt;color:#333399;letter-spacing:1.2pt;font-weight:bold">Brian Goldsmith, LEED</span></font></i></b></em><b><sup><font size="2" color="#333399" face="Gill Sans MT"><span style="font-size:10.0pt;font-family:"Gill Sans MT";
color:#333399;letter-spacing:1.2pt;font-weight:bold">®</span></font></sup><em><i><font color="#333399" face="Times New Roman"><span style="color:#333399;letter-spacing:
1.2pt">
AP</span></font></i></em></b><o:p></o:p></p>
<p class="MsoNormal"><font size="2" color="#333399" face="Times New Roman"><span style="font-size:11.0pt;color:#333399">Design Engineer<o:p></o:p></span></font></p>
<p class="MsoNormal"><font size="1" color="green" face="Gill Sans MT"><span style="font-size:7.5pt;font-family:"Gill Sans MT";color:green;letter-spacing:
1.0pt"><img width="149" height="30" id="_x0000_i1025" src="cid:image002.jpg@01CC1AA8.F43CE080"><o:p></o:p></span></font></p>
<p class="MsoNormal"><st1:Street w:st="on"><st1:address w:st="on"><font size="1" color="green" face="Gill Sans MT"><span style="font-size:7.5pt;font-family:
"Gill Sans MT";color:green;letter-spacing:1.0pt">97 E. Brokaw Road</span></font></st1:address></st1:Street><font size="1" color="green" face="Gill Sans MT"><span style="font-size:7.5pt;font-family:
"Gill Sans MT";color:green;letter-spacing:1.0pt">,
No 300<o:p></o:p></span></font></p>
<p class="MsoNormal"><U3:PLACE u4:st="on"><U3:CITY u4:st="on"><U1:PLACE u2:st="on"><U1:CITY u2:st="on"><st1:place w:st="on"><st1:City w:st="on"><font size="1" color="green" face="Gill Sans MT"><span style="font-size:7.5pt;font-family:"Gill Sans MT";color:green;letter-spacing:
1.0pt">San
Jose</span></font></st1:City></st1:place><font size="1" color="green" face="Gill Sans MT"><span style="font-size:7.5pt;font-family:"Gill Sans MT";
color:green;letter-spacing:1.0pt"></U1:CITY>,
<U1:STATE u2:st="on"><st1:State w:st="on">CA</U1:STATE></st1:State> <U1:POSTALCODE u2:st="on">
<st1:PostalCode w:st="on">95112</U1:POSTALCODE></U1:PLACE></U3:CITY></U3:PLACE></st1:PostalCode><o:p></o:p></span></font></p>
<p class="MsoNormal"><strong><b><font size="1" color="green" face="Gill Sans MT"><span style="font-size:7.5pt;font-family:"Gill Sans MT";color:green;letter-spacing:
1.0pt;font-weight:normal">main
</span></font></b></strong><font size="1" color="green" face="Gill Sans MT"><span style="font-size:7.5pt;font-family:
"Gill Sans MT";color:green;letter-spacing:1.0pt">408.487.1200<o:p></o:p></span></font></p>
<p class="MsoNormal"><strong><b><font size="1" color="green" face="Gill Sans MT"><span style="font-size:7.5pt;font-family:"Gill Sans MT";color:green;letter-spacing:
1.0pt;font-weight:normal">direct</span></font></b></strong><font size="1" color="green" face="Gill Sans MT"><span style="font-size:7.5pt;font-family:"Gill Sans MT";
color:green;letter-spacing:1.0pt">
408.487.1217</span></font><o:p></o:p></p>
<p class="MsoNormal"><font size="1" color="#339966" face="Gill Sans MT"><span style="font-size:7.5pt;font-family:"Gill Sans MT";color:#339966;letter-spacing:
1.0pt"><a href="http://www.atce.com/" title="http://www.atce.com/">www.atce.com</a>
</span></font><o:p></o:p></p>
<p class="MsoNormal"><font size="3" face="Times New Roman"><span style="font-size:
12.0pt"><o:p> </o:p></span></font></p>
</div>
<br>
<hr>
<font face="Arial" color="Gray" size="1">Confidentiality Statement:<br>
The information contained in this e-mail, and any attachments is considered confidential, intellectual property of Alfa Tech Consulting Enterprises, Inc. (ATCE, Inc.) Any dissemination, distribution, printing or copying of this e-mail, and any attachments thereto,
is strictly prohibited without prior written consent.<br>
</font>
</body>
</html>