<META HTTP-EQUIV="Content-Type" CONTENT="text/html; charset=iso-8859-9">
<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:m="http://schemas.microsoft.com/office/2004/12/omml" xmlns="http://www.w3.org/TR/REC-html40"
xmlns:ns0="urn:schemas-microsoft-com:office:smarttags" xmlns:ns1="">
<head>
<meta name=Generator content="Microsoft Word 12 (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]-->
<style>
<!--
/* Font Definitions */
@font-face
{font-family:"Cambria Math";
panose-1:2 4 5 3 5 4 6 3 2 4;}
@font-face
{font-family:Calibri;
panose-1:2 15 5 2 2 2 4 3 2 4;}
@font-face
{font-family:Tahoma;
panose-1:2 11 6 4 3 5 4 4 2 4;}
/* Style Definitions */
p.MsoNormal, li.MsoNormal, div.MsoNormal
{margin:0cm;
margin-bottom:.0001pt;
font-size:12.0pt;
font-family:"Times New Roman","serif";}
a:link, span.MsoHyperlink
{mso-style-priority:99;
color:blue;
text-decoration:underline;}
a:visited, span.MsoHyperlinkFollowed
{mso-style-priority:99;
color:#606420;
text-decoration:underline;}
p
{mso-style-priority:99;
mso-margin-top-alt:auto;
margin-right:0cm;
mso-margin-bottom-alt:auto;
margin-left:0cm;
font-size:12.0pt;
font-family:"Times New Roman","serif";}
p.MsoAcetate, li.MsoAcetate, div.MsoAcetate
{mso-style-priority:99;
mso-style-link:"Balon Metni Char";
margin:0cm;
margin-bottom:.0001pt;
font-size:8.0pt;
font-family:"Tahoma","sans-serif";}
span.msohyperlnk
{mso-style-name:msohyperl\0131nk;
color:blue;
text-decoration:underline;}
span.msohyperlnkfollowed
{mso-style-name:msohyperl\0131nkfollowed;
color:#606420;
text-decoration:underline;}
span.emalstyle17
{mso-style-name:ema\0131lstyle17;
font-family:"Arial","sans-serif";
color:windowtext;}
span.E-postaStili21
{mso-style-type:personal;
font-family:"Arial","sans-serif";
color:navy;}
span.E-postaStili22
{mso-style-type:personal-reply;
font-family:"Calibri","sans-serif";
color:#1F497D;}
span.BalonMetniChar
{mso-style-name:"Balon Metni Char";
mso-style-priority:99;
mso-style-link:"Balon Metni";
font-family:"Tahoma","sans-serif";}
.MsoChpDefault
{mso-style-type:export-only;
font-size:10.0pt;}
@page WordSection1
{size:612.0pt 792.0pt;
margin:70.85pt 70.85pt 70.85pt 70.85pt;}
div.WordSection1
{page:WordSection1;}
-->
</style>
<!--[if gte mso 9]><xml>
<o:shapedefaults v:ext="edit" spidmax="1026" />
</xml><![endif]--><!--[if gte mso 9]><xml>
<o:shapelayout v:ext="edit">
<o:idmap v:ext="edit" data="1" />
</o:shapelayout></xml><![endif]-->
</head>
<body lang=EN-US link=blue vlink="#606420">
<div class=WordSection1>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>I agree with Gary I have never see that high COP for the VRV
units. It can be EER value. Please check that value again to avoid any mistake.<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>Good luck<o:p></o:p></span></p>
<div>
<div>
<div>
<div>
<div>
<div>
<div>
<div>
<div>
<div>
<div>
<div>
<div>
<div>
<div>
<div>
<div>
<p class=MsoNormal><span lang=TR style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span lang=TR style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>Yük.Müh.Berke Çelikel<o:p></o:p></span></p>
<p class=MsoNormal><span lang=TR style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:gray'>Lis.Mak.Müh/Yük.Lis.End.Müh.(Müh.Yön.)<o:p></o:p></span></p>
<p class=MsoNormal><span lang=TR style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:gray'>BSc.Mech. Eng./MSc.Ind.Eng.(Eng. Man.)<o:p></o:p></span></p>
<p class=MsoNormal><span lang=TR style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'> </span><span lang=TR
style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:gray'><o:p></o:p></span></p>
<p class=MsoNormal><span lang=TR style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
<div>
<div style='border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0cm 0cm 0cm'>
<p class=MsoNormal><b><span lang=TR style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>From:</span></b><span
lang=TR style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'> Gary.Schrader@buildings.schneider-electric.com
[mailto:Gary.Schrader@buildings.schneider-electric.com] <br>
<b>Sent:</b> Thursday, October 14, 2010 6:11 PM<br>
<b>To:</b> omar@ecoconsulting.net; equest-users@lists.onebuilding.org<br>
<b>Subject:</b> Re: [Equest-users] VRV Special case: is it worth modeling?<o:p></o:p></span></p>
</div>
</div>
<p class=MsoNormal><o:p> </o:p></p>
<div>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";
color:navy'>Omar,<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";
color:navy'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";
color:navy'>The only thing that would save you a significant amount of energy
in my opinion would have been scheduling large VAV air handling and plant
equipment that was originally serving them. I had a project where I took data
closets off of the VAV units and put VRV units in the closets so that the VAV
units no longer had to run 24/7. Scheduling these large VAV units had a
significant savings impact.<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";
color:navy'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";
color:navy'>In your case, it sounds like you may have something similar but I
would need clarification. You said that your closets (that you want to convert
to VRV) are currently FCU. I assume that these FCUs are served by chilled
water. By switching these closets over to VRV, are you able to now schedule the
chiller off? If yes, I would assume that significant savings would result by
not running a chiller (and pumping) 24/7, even with a high unloading capability
and variable-speed pumping. (If you had low unloading capability and constant
pumping, more savings would result)<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";
color:navy'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";
color:navy'>At face value, simply changing the efficiency of the cooling
equipment isn’t enough to evaluate energy savings. If, however, you can
significantly change the schedule of plant equipment because it is isolated
from zones that require 24/7 operation, savings could be significant and I
would certainly recommend a model.<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";
color:navy'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";
color:navy'>Sidenote: 10 COP seems very, very high for even the best VRV
equipment. I would check that value to ensure accuracy…<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";
color:navy'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";
color:navy'>Best luck,<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";
color:navy'>Gary<o:p></o:p></span></p>
<div>
<p class=MsoNormal style='margin-bottom:12.0pt'><span style='font-size:8.5pt;
font-family:"Arial","sans-serif";color:navy'><br>
</span><span style='font-size:8.5pt;font-family:"Arial","sans-serif";
color:green'>_______________________________________________________________________________________________________________________</span><span
style='font-size:8.5pt;font-family:"Arial","sans-serif";color:navy'><o:p></o:p></span></p>
<p><b><span style='font-size:8.5pt;font-family:"Arial","sans-serif";color:navy'>Gary
Schrader</span></b><span style='font-size:8.5pt;font-family:"Arial","sans-serif";
color:navy'> | </span><b><span style='font-size:8.5pt;font-family:"Arial","sans-serif";
color:green'>Schneider Electric </span></b><span style='font-size:8.5pt;
font-family:"Arial","sans-serif";color:navy'>| <b>Buildings Business</b> | <b>Energy
Solutions </b>| <b>Engineer I</b><br>
<b>Phone:</b> +1 913 217 8068 | <b>Fax: </b>+1 913 469 0206<br>
<b>Email: </b><a href="Mailto:gary.schrader@buildings.schneider-electric.com">gary.schrader@buildings.schneider-electric.com</a>
| <b>Site: </b><a href="http://www.schneider-electric.com/buildings">www.schneider-electric.com/buildings</a>
| <b>Address: </b>16011 College Boulevard, Suite 212, Lenexa, KS 66219, USA<br>
<br>
</span><span style='font-size:8.5pt;font-family:"Arial","sans-serif";
color:green'>*** Please consider the environment before printing this email.<o:p></o:p></span></p>
</div>
<div>
<div class=MsoNormal align=center style='text-align:center'>
<hr size=2 width="100%" align=center>
</div>
<p class=MsoNormal><b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>From:</span></b><span
style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>
equest-users-bounces@lists.onebuilding.org
[mailto:equest-users-bounces@lists.onebuilding.org] <b>On Behalf Of </b>Omar
Katanani<br>
<b>Sent:</b> Thursday, October 14, 2010 5:41 AM<br>
<b>To:</b> equest-users@lists.onebuilding.org<br>
<b>Subject:</b> [Equest-users] VRV Special case: is it worth modeling?</span><o:p></o:p></p>
</div>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal><span lang=EN-GB style='font-size:10.0pt;font-family:"Arial","sans-serif";
color:navy'> </span><span lang=EN-GB><o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-GB style='font-size:10.0pt;font-family:"Arial","sans-serif";
color:navy'>Dear all,</span><span lang=EN-GB><o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-GB style='font-size:10.0pt;font-family:"Arial","sans-serif";
color:navy'> </span><span lang=EN-GB><o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-GB style='font-size:10.0pt;font-family:"Arial","sans-serif";
color:navy'>My school has some 200 zones including classrooms, storage rooms,
offices...</span><span lang=EN-GB><o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-GB style='font-size:10.0pt;font-family:"Arial","sans-serif";
color:navy'> </span><span lang=EN-GB><o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-GB style='font-size:10.0pt;font-family:"Arial","sans-serif";
color:navy'>The HVAC system is a VAV one, with FCU for 17 offices/storage
rooms.</span><span lang=EN-GB><o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-GB style='font-size:10.0pt;font-family:"Arial","sans-serif";
color:navy'> </span><span lang=EN-GB><o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-GB style='font-size:10.0pt;font-family:"Arial","sans-serif";
color:navy'>In the new updated design, 4 of these FCUs were replaced with a VRV
system. I am about to model that:</span><span lang=EN-GB><o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-GB style='font-size:10.0pt;font-family:"Arial","sans-serif";
color:navy'> </span><span lang=EN-GB><o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-GB style='font-size:10.0pt;font-family:"Arial","sans-serif";
color:navy'>Do you think that these 4 small zones (electrical room (x 2), UPS
room, telephone room) will significantly change the Space Cooling results (not
that no heating is required)? I mean, these zones had FCUs and were
conditioned. All that changed is that a VRV (COP=10) replaced the chiller
(COP=5.4) for only 4 zones!</span><span lang=EN-GB><o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-GB style='font-size:10.0pt;font-family:"Arial","sans-serif";
color:navy'> </span><span lang=EN-GB><o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-GB style='font-size:10.0pt;font-family:"Arial","sans-serif";
color:navy'>I would like to avoid the complexity of modeling VRVs if possible!</span><span
lang=EN-GB><o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-GB style='font-size:10.0pt;font-family:"Arial","sans-serif";
color:navy'> </span><span lang=EN-GB><o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-GB style='font-size:10.0pt;font-family:"Arial","sans-serif";
color:navy'>Many thanks,</span><span lang=EN-GB><o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-GB style='font-size:10.0pt;font-family:"Arial","sans-serif";
color:navy'>Omar</span><span lang=EN-GB><o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-GB style='font-size:10.0pt;font-family:"Arial","sans-serif";
color:navy'>___________________________</span><span lang=EN-GB><o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-GB style='font-size:10.0pt;font-family:"Arial","sans-serif"'><ns0:PersonName
ns1:style="BACKGROUND-POSITION: left bottom; BACKGROUND-IMAGE: url(res://ietag.dll/#34/#1001); BACKGROUND-REPEAT: repeat-x"><ns0:PersonName
ns1:style="BACKGROUND-POSITION: left bottom; BACKGROUND-IMAGE: url(res://ietag.dll/#34/#1001); BACKGROUND-REPEAT: repeat-x"><ns0:PersonName
ns1:style="BACKGROUND-POSITION: left bottom; BACKGROUND-IMAGE: url(res://ietag.dll/#34/#1001); BACKGROUND-REPEAT: repeat-x"><ns0:PersonName
ns1:style="BACKGROUND-POSITION: left bottom; BACKGROUND-IMAGE: url(res://ietag.dll/#34/#1001); BACKGROUND-REPEAT: repeat-x"><span
style='color:navy'>Omar Katanani<br>
</span></ns0:PersonName></ns0:PersonName></ns0:PersonName></ns0:PersonName><span
style='color:navy'>Sustainable Design Engineer</span></span><span lang=EN-GB><o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-GB style='font-size:10.0pt;font-family:"Arial","sans-serif";
color:navy'>Email: </span><span lang=EN-GB style='font-size:10.0pt;font-family:
"Arial","sans-serif"'><ns0:PersonName
ns1:style="BACKGROUND-POSITION: left bottom; BACKGROUND-IMAGE: url(res://ietag.dll/#34/#1001); BACKGROUND-REPEAT: repeat-x"><span
style='color:navy'><a href="mailto:omar@ecoconsulting.net">omar@ecoconsulting.net</a></span></ns0:PersonName></span><span
lang=EN-GB><o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-GB style='color:navy'> </span><span
lang=EN-GB><o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:7.5pt;font-family:"Arial","sans-serif";
color:navy'>EcoConsulting (Lebanon)</span><span lang=EN-GB><o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:7.5pt;font-family:"Arial","sans-serif";
color:navy'>Nahas Building, 4<sup>th</sup> floor</span><span lang=EN-GB><o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:7.5pt;font-family:"Arial","sans-serif";
color:navy'>4 St-Maron Street / Georges Haddad Avenue</span><span lang=EN-GB><o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:7.5pt;font-family:"Arial","sans-serif";
color:navy'>Postal Code: 2028 5806 SAIFI</span><span lang=EN-GB><o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:7.5pt;font-family:"Arial","sans-serif";
color:navy'>Beirut, Lebanon</span><span lang=EN-GB><o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:7.5pt;font-family:"Arial","sans-serif";
color:navy'>Tel: </span><span
lang=EN-GB style='font-size:7.5pt;font-family:"Arial","sans-serif";color:navy'>+961
(0) 1 971 266<br>
Mobile: +961 (0) 3 045 045</span><span lang=EN-GB><o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-GB> <o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-GB style='font-size:7.5pt;font-family:"Arial","sans-serif";
color:navy'>EcoConsulting (UK) Ltd<br>
28 Marshalsea Road<br>
London, SE1 1HF<br>
Tel: +44 (0) 207 939 0989<br>
Fax: +44 (0) 207 939 0981</span><span lang=EN-GB><o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-GB style='font-size:7.5pt;font-family:"Arial","sans-serif";
color:navy'>Website: <a href="http://www.ecoconsulting.net/">www.ecoconsulting.net</a></span><span
lang=EN-GB><o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-GB> <o:p></o:p></span></p>
<p style='margin:0cm;margin-bottom:.0001pt'><span lang=EN-GB style='font-size:
10.0pt;font-family:"Arial","sans-serif";color:navy'> <img border=0
width=870 height=102 id="_x0000_i1025" src="cid:image001.jpg@01CB7426.500623B0"></span><span
lang=EN-GB><o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-GB> <o:p></o:p></span></p>
</div>
<p class=MsoNormal><br>
______________________________________________________________________<br>
This email has been scanned by the MessageLabs Email Security System.<br>
For more information please visit http://www.messagelabs.com/email <br>
______________________________________________________________________<o:p></o:p></p>
</div>
</body>
</html>