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<DIV dir=ltr align=left><FONT face=Arial color=#0000ff size=2><SPAN
class=878530913-14052010>For curve fit info, I have always used the
manufacturer's performance data sheets and picked several points off of the
charts and then generated a curve using that information. I'm not sure how
"typical" the curves are between one manufacturer and another, or between one
model and another for that matter.</SPAN></FONT></DIV>
<DIV dir=ltr align=left><FONT face=Arial color=#0000ff size=2><SPAN
class=878530913-14052010></SPAN></FONT> </DIV>
<DIV dir=ltr align=left><FONT face=Arial color=#0000ff size=2><SPAN
class=878530913-14052010>I have not seen any curves anywhere on the internet for
VRF/VRV equipment. I've generated them myself every time. That said, this is
what I have come up with on my past projects:</SPAN></FONT></DIV>
<DIV dir=ltr align=left><FONT face=Arial color=#0000ff size=2><SPAN
class=878530913-14052010></SPAN></FONT> </DIV>
<DIV dir=ltr align=left><FONT face=Arial color=#0000ff size=2><SPAN
class=878530913-14052010>Cooling EIR=f(EWB,ODB)=</SPAN></FONT></DIV>
<DIV dir=ltr align=left><FONT face=Arial color=#0000ff size=2><SPAN
class=878530913-14052010>a=-3.86460948</SPAN></FONT></DIV>
<DIV dir=ltr align=left><FONT face=Arial color=#0000ff size=2><SPAN
class=878530913-14052010>b=.13359652</SPAN></FONT></DIV>
<DIV dir=ltr align=left><FONT face=Arial color=#0000ff size=2><SPAN
class=878530913-14052010>c=-.00097171</SPAN></FONT></DIV>
<DIV dir=ltr align=left><FONT face=Arial color=#0000ff size=2><SPAN
class=878530913-14052010>d=-.02367110</SPAN></FONT></DIV>
<DIV dir=ltr align=left><FONT face=Arial color=#0000ff size=2><SPAN
class=878530913-14052010>e=.00010817</SPAN></FONT></DIV>
<DIV dir=ltr align=left><FONT face=Arial color=#0000ff size=2><SPAN
class=878530913-14052010>f=.00022779</SPAN></FONT></DIV>
<DIV dir=ltr align=left><FONT face=Arial color=#0000ff size=2><SPAN
class=878530913-14052010></SPAN></FONT> </DIV>
<DIV dir=ltr align=left><FONT face=Arial color=#0000ff size=2><SPAN
class=878530913-14052010>Cooling CAP=f(EWB,ODB)=</SPAN></FONT></DIV>
<DIV dir=ltr align=left><FONT face=Arial color=#0000ff size=2><SPAN
class=878530913-14052010>a=-5.1623230</SPAN></FONT></DIV>
<DIV dir=ltr align=left><FONT face=Arial color=#0000ff size=2><SPAN
class=878530913-14052010>b=.14462045</SPAN></FONT></DIV>
<DIV dir=ltr align=left><FONT face=Arial color=#0000ff size=2><SPAN
class=878530913-14052010>c=-.00076546</SPAN></FONT></DIV>
<DIV dir=ltr align=left><FONT face=Arial color=#0000ff size=2><SPAN
class=878530913-14052010>d=.01399993</SPAN></FONT></DIV>
<DIV dir=ltr align=left><FONT face=Arial color=#0000ff size=2><SPAN
class=878530913-14052010>e=-.00000870</SPAN></FONT></DIV>
<DIV dir=ltr align=left><FONT face=Arial color=#0000ff size=2><SPAN
class=878530913-14052010>f=-.00021874</SPAN></FONT></DIV>
<DIV dir=ltr align=left><FONT face=Arial color=#0000ff size=2><SPAN
class=878530913-14052010></SPAN></FONT> </DIV>
<DIV dir=ltr align=left><FONT face=Arial color=#0000ff size=2><SPAN
class=878530913-14052010>Heating EIR=f(EDB,OAT)=</SPAN></FONT></DIV>
<DIV dir=ltr align=left><FONT face=Arial color=#0000ff size=2><SPAN
class=878530913-14052010>a=-.06203419</SPAN></FONT></DIV>
<DIV dir=ltr align=left><FONT face=Arial color=#0000ff size=2><SPAN
class=878530913-14052010>b=.02622044</SPAN></FONT></DIV>
<DIV dir=ltr align=left><FONT face=Arial color=#0000ff size=2><SPAN
class=878530913-14052010>c=-.00012317</SPAN></FONT></DIV>
<DIV dir=ltr align=left><FONT face=Arial color=#0000ff size=2><SPAN
class=878530913-14052010>d=.04781748</SPAN></FONT></DIV>
<DIV dir=ltr align=left><FONT face=Arial color=#0000ff size=2><SPAN
class=878530913-14052010>e=-.00021321</SPAN></FONT></DIV>
<DIV dir=ltr align=left><FONT face=Arial color=#0000ff size=2><SPAN
class=878530913-14052010>f=-.00057526</SPAN></FONT></DIV>
<DIV dir=ltr align=left><FONT face=Arial color=#0000ff size=2><SPAN
class=878530913-14052010></SPAN></FONT> </DIV>
<DIV dir=ltr align=left><FONT face=Arial color=#0000ff size=2><SPAN
class=878530913-14052010>Heating CAP=f(EDB,OAT)=</SPAN></FONT></DIV>
<DIV dir=ltr align=left><FONT face=Arial color=#0000ff size=2><SPAN
class=878530913-14052010>a=.76658428</SPAN></FONT></DIV>
<DIV dir=ltr align=left><FONT face=Arial color=#0000ff size=2><SPAN
class=878530913-14052010>b=.00072927</SPAN></FONT></DIV>
<DIV dir=ltr align=left><FONT face=Arial color=#0000ff size=2><SPAN
class=878530913-14052010>c=-.00001362</SPAN></FONT></DIV>
<DIV dir=ltr align=left><FONT face=Arial color=#0000ff size=2><SPAN
class=878530913-14052010>d=.03394593</SPAN></FONT></DIV>
<DIV dir=ltr align=left><FONT face=Arial color=#0000ff size=2><SPAN
class=878530913-14052010>e=-.00012465</SPAN></FONT></DIV>
<DIV dir=ltr align=left><FONT face=Arial color=#0000ff size=2><SPAN
class=878530913-14052010>f=-.00031964</SPAN></FONT></DIV>
<DIV><FONT face=Arial color=#0000ff size=2></FONT> </DIV>
<DIV><SPAN class=878530913-14052010><FONT face=Arial color=#0000ff size=2>These
curves were for a Daikin VRV-III system that was NON-heat-recovery and between
10-14 tons in capacity.</FONT></SPAN></DIV>
<DIV><SPAN class=878530913-14052010><FONT face=Arial color=#0000ff
size=2></FONT></SPAN> </DIV>
<DIV><SPAN class=878530913-14052010><FONT face=Arial color=#0000ff size=2>I
would not recommend using these curves on Mitsubishi, Sanyo, etc., just by
virtue of the fact that they all do it a little bit differently. My assumption
is that they are at least similar.</FONT></SPAN></DIV>
<DIV><SPAN class=878530913-14052010><FONT face=Arial color=#0000ff
size=2></FONT></SPAN> </DIV>
<DIV><SPAN class=878530913-14052010><FONT face=Arial color=#0000ff size=2>I
won't pretend like I know how to model the energy-recovery versions of any of
these products.</FONT></SPAN></DIV>
<DIV><SPAN class=878530913-14052010><FONT face=Arial color=#0000ff
size=2></FONT></SPAN> </DIV>
<DIV><SPAN class=878530913-14052010><FONT face=Arial color=#0000ff
size=2>Hopefully this helps you guys get on the right track. I felt terrible
reading the VRV posts coming across the listserv all week and saying nothing
about them, so here is my contribution, albeit limited.</FONT></SPAN></DIV>
<DIV><SPAN class=878530913-14052010><FONT face=Arial color=#0000ff
size=2></FONT></SPAN> </DIV>
<DIV><SPAN class=878530913-14052010><FONT face=Arial color=#0000ff size=2>Happy
Friday,</FONT></SPAN></DIV>
<DIV><SPAN class=878530913-14052010><FONT face=Arial color=#0000ff
size=2>Gary</FONT></SPAN></DIV><SPAN style="FONT: 8.5pt Arial"><FONT
color=#0000ff size=2></FONT><BR><FONT
color=green>_______________________________________________________________________________________________________________________</FONT><BR><BR>
<P style="FONT: 8.5pt Arial" align=left><B>Gary Schrader</B> </B>| <B><FONT
color=green>Schneider Electric </FONT></B>| <B>Buildings Business</B> </B>|
<B>Energy Solutions </B>| <B>Engineer I</B><BR><B>Phone:</B> +1 </B>| <B>Mobile:
</B>+1 913 217 8068</B> | <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>| <B>Site: </B><A
href="http://www.schneider-electric.com/buildings">www.schneider-electric.com/buildings</A></B>
| <B>Address: </B>16011 College Boulevard, Suite 212, Lenexa, KS 66219,
USA<BR><BR><FONT color=green>*** Please consider the environment before printing
this email.</P></FONT></SPAN>
<DIV> </DIV><BR>
<DIV class=OutlookMessageHeader lang=en-us dir=ltr align=left>
<HR tabIndex=-1>
<FONT face=Tahoma size=2><B>From:</B> equest-users-bounces@lists.onebuilding.org
[mailto:equest-users-bounces@lists.onebuilding.org] <B>On Behalf Of </B>Carol
Gardner<BR><B>Sent:</B> Thursday, May 13, 2010 6:29 PM<BR><B>To:</B> Pasha
Korber-Gonzalez<BR><B>Cc:</B>
equest-users@lists.onebuilding.org<BR><B>Subject:</B> Re: [Equest-users] VRF in
eQuest<BR></FONT><BR></DIV>
<DIV></DIV>Hi all,<BR><BR>It's my pleasure to share information. I might be able
to get some curve fit info, too, but you will need to absolutely know what you
are doing to implement it. It is for when you are calling VRF/VRVs air source
heat pumps. NOT FOR WATER SOURCE. I will forward when I get it. You will use it
only if you are able to do so with skill! <BR><BR>Peace out,<BR>Carol<BR><BR>
<DIV class=gmail_quote>On Thu, May 13, 2010 at 11:47 AM, Pasha Korber-Gonzalez
<SPAN dir=ltr><<A
href="mailto:pasha.pkconsulting@gmail.com">pasha.pkconsulting@gmail.com</A>></SPAN>
wrote:<BR>
<BLOCKQUOTE class=gmail_quote
style="PADDING-LEFT: 1ex; MARGIN: 0pt 0pt 0pt 0.8ex; BORDER-LEFT: rgb(204,204,204) 1px solid">
<DIV>Carol, this is awesome--thanks for your assistance as always and I'll
check back with you and all to let you know how it worked out for my
project.</DIV>
<DIV> </DIV>
<DIV>thanks again,</DIV>
<DIV>Pasha :)<FONT color=#888888><BR><BR></FONT></DIV>
<DIV>
<DIV></DIV>
<DIV class=h5>
<DIV class=gmail_quote>On Thu, May 13, 2010 at 10:01 AM, Carol Gardner <SPAN
dir=ltr><<A href="mailto:cmg750@gmail.com"
target=_blank>cmg750@gmail.com</A>></SPAN> wrote:<BR>
<BLOCKQUOTE class=gmail_quote
style="PADDING-LEFT: 1ex; MARGIN: 0px 0px 0px 0.8ex; BORDER-LEFT: rgb(204,204,204) 1px solid">Pasha,<BR><BR>Here
is the info you needed for your VRV project. I'll send it via this email as
others may need similar data:<BR><BR><FONT face=Arial size=2>I have included
some input data below for the units you requested. I have given you
the data in EIR form as that is what gets put into Equest and I figured it
would save a step.</FONT>
<DIV dir=ltr> </DIV>
<DIV dir=ltr><FONT face=Arial color=#000000 size=2>Here is the data I would
enter for the systems:</FONT></DIV>
<DIV dir=ltr> </DIV>
<DIV style="FONT-FAMILY: courier new,monospace">
<P class=MsoNormal dir=ltr style="MARGIN-LEFT: 0.5in" align=left><U><FONT
size=3><SPAN style="FONT-SIZE: 12pt">Outside Units</SPAN></FONT></U></P>
<P class=MsoNormal dir=ltr style="MARGIN-LEFT: 0.5in" align=left><FONT
size=3><SPAN style="FONT-SIZE: 12pt">PURY-P234TGMU-A</SPAN></FONT></P></DIV>
<P class=MsoNormal dir=ltr
style="MARGIN-LEFT: 0.5in; FONT-FAMILY: courier new,monospace"
align=left><FONT size=3><SPAN style="FONT-SIZE: 12pt"><SPAN
style="FONT-SIZE: 12pt"><SPAN style="FONT-SIZE: 12pt">Cooling EIR:
.315 <SPAN style="FONT-SIZE: 12pt"><SPAN
style="FONT-SIZE: 12pt">Heating EIR:
.294</SPAN></SPAN></SPAN></SPAN></SPAN></FONT></P>
<P class=MsoNormal dir=ltr
style="MARGIN-LEFT: 0.5in; FONT-FAMILY: courier new,monospace"
align=left><FONT size=3><SPAN style="FONT-SIZE: 12pt"></SPAN></FONT><FONT
size=3><SPAN style="FONT-SIZE: 12pt">PURY-P72TGMU-A</SPAN></FONT></P>
<P class=MsoNormal dir=ltr
style="MARGIN-LEFT: 0.5in; FONT-FAMILY: courier new,monospace"
align=left><FONT size=3><SPAN style="FONT-SIZE: 12pt"><SPAN
style="FONT-SIZE: 12pt">Cooling EIR: .307 <SPAN
style="FONT-SIZE: 12pt"><SPAN style="FONT-SIZE: 12pt">Heating EIR:
.271</SPAN></SPAN></SPAN></SPAN></FONT></P>
<P class=MsoNormal dir=ltr
style="MARGIN-LEFT: 0.5in; FONT-FAMILY: courier new,monospace"
align=left><FONT size=3><SPAN
style="FONT-SIZE: 12pt">PURY-P144TGMU-A</SPAN></FONT></P>
<P class=MsoNormal dir=ltr
style="MARGIN-LEFT: 0.5in; FONT-FAMILY: courier new,monospace"
align=left><FONT size=3><SPAN style="FONT-SIZE: 12pt"><SPAN
style="FONT-SIZE: 12pt"><SPAN style="FONT-SIZE: 12pt"><SPAN
style="FONT-SIZE: 12pt">Cooling EIR: .336 <SPAN
style="FONT-SIZE: 12pt"><SPAN style="FONT-SIZE: 12pt">Heating EIR:
.291</SPAN></SPAN></SPAN></SPAN></SPAN></SPAN></FONT></P>
<P class=MsoNormal dir=ltr
style="MARGIN-LEFT: 0.5in; FONT-FAMILY: courier new,monospace"
align=left><FONT size=3><SPAN
style="FONT-SIZE: 12pt">PURY-P108TGMU-A</SPAN></FONT></P>
<P class=MsoNormal dir=ltr
style="MARGIN-LEFT: 0.5in; FONT-FAMILY: courier new,monospace"
align=left><FONT size=3><SPAN style="FONT-SIZE: 12pt"><SPAN
style="FONT-SIZE: 12pt"><SPAN style="FONT-SIZE: 12pt">Cooling EIR:
.307 <SPAN style="FONT-SIZE: 12pt"><SPAN
style="FONT-SIZE: 12pt">Heating EIR:
.282</SPAN></SPAN></SPAN></SPAN></SPAN></FONT></P>
<P class=MsoNormal dir=ltr
style="MARGIN-LEFT: 0.5in; FONT-FAMILY: courier new,monospace"
align=left><U><FONT size=3><SPAN style="FONT-SIZE: 12pt">Inside
Units</SPAN></FONT></U></P>
<P class=MsoNormal dir=ltr
style="MARGIN-LEFT: 0.5in; FONT-FAMILY: courier new,monospace"
align=left><FONT size=3><SPAN style="FONT-SIZE: 12pt">PKFY-08 -
.14watts/cfm</SPAN></FONT></P>
<P class=MsoNormal dir=ltr
style="MARGIN-LEFT: 0.5in; FONT-FAMILY: courier new,monospace"
align=left><FONT size=3><SPAN style="FONT-SIZE: 12pt">PKY-12 -
.08watts/cfm</SPAN></FONT></P>
<P class=MsoNormal dir=ltr
style="MARGIN-LEFT: 0.5in; FONT-FAMILY: courier new,monospace"
align=left><FONT size=3><SPAN style="FONT-SIZE: 12pt">PKY-15 -
.08watts/cfm</SPAN></FONT></P>
<P class=MsoNormal dir=ltr
style="MARGIN-LEFT: 0.5in; FONT-FAMILY: courier new,monospace"
align=left><FONT size=3><SPAN style="FONT-SIZE: 12pt">PKY-024 - .06
watts/cfm</SPAN></FONT></P>
<P class=MsoNormal dir=ltr
style="MARGIN-LEFT: 0.5in; FONT-FAMILY: courier new,monospace"
align=left><FONT size=3><SPAN style="FONT-SIZE: 12pt">PKY-30 - .07
watts/cfm</SPAN></FONT></P>
<P class=MsoNormal dir=ltr
style="MARGIN-LEFT: 0.5in; FONT-FAMILY: courier new,monospace"
align=left><FONT face="courier new,monospace"><FONT size=2>Let me know if
this works for you or if you need additional info,</FONT></FONT></P>
<P class=MsoNormal dir=ltr
style="MARGIN-LEFT: 0.5in; FONT-FAMILY: courier new,monospace"
align=left>Cheers,</P>
<P class=MsoNormal dir=ltr
style="MARGIN-LEFT: 0.5in; FONT-FAMILY: courier new,monospace"
align=left>Carol<BR></P>
<P class=MsoNormal dir=ltr style="MARGIN-LEFT: 0.5in" align=left><BR><FONT
face="Courier New"><FONT size=3><SPAN
style="FONT-SIZE: 12pt"></SPAN></FONT></FONT></P>
<P class=MsoNormal dir=ltr style="MARGIN-LEFT: 0.5in" align=left><FONT
face="Courier New"><FONT size=3><SPAN
style="FONT-SIZE: 12pt"><BR></SPAN></FONT></FONT></P><BR><BR><BR>
<DIV class=gmail_quote>
<DIV>On Mon, May 10, 2010 at 11:44 AM, Pasha Korber-Gonzalez <SPAN
dir=ltr><<A href="mailto:pasha.pkconsulting@gmail.com"
target=_blank>pasha.pkconsulting@gmail.com</A>></SPAN> wrote:<BR></DIV>
<BLOCKQUOTE class=gmail_quote
style="PADDING-LEFT: 1ex; MARGIN: 0pt 0pt 0pt 0.8ex; BORDER-LEFT: rgb(204,204,204) 1px solid">
<DIV>
<DIV>Can't be done explicitly in eQuest. I searched the <A
href="http://www.onebuilding.org/" target=_blank>www.onebuilding.org</A>
archives for VRV and VRF to see what past discussions and advice has been
put out there. At this point this is the best suggestion I can
give. I'm trying to model one now for a LEED project--not a smooth
process. </DIV>
<DIV> </DIV><FONT color=#888888>
<DIV>pasha<BR><BR></DIV></FONT></DIV>
<DIV class=gmail_quote>
<DIV>
<DIV>
<DIV></DIV>
<DIV>On Mon, May 10, 2010 at 10:21 AM, Lopez, Phylroy <SPAN dir=ltr><<A
href="mailto:Phylroy.Lopez@stantec.com"
target=_blank>Phylroy.Lopez@stantec.com</A>></SPAN>
wrote:<BR></DIV></DIV></DIV>
<BLOCKQUOTE class=gmail_quote
style="PADDING-LEFT: 1ex; MARGIN: 0px 0px 0px 0.8ex; BORDER-LEFT: rgb(204,204,204) 1px solid">
<DIV>
<DIV></DIV>
<DIV>
<DIV lang=EN-US link="blue" vlink="purple">
<DIV>
<DIV>
<P class=MsoNormal><SPAN style="FONT-SIZE: 10pt; COLOR: blue">Has
anybody done a VRF system in eQuest? Or know of any resources that would
detail how to do this? </SPAN></P>
<P class=MsoNormal><SPAN
style="FONT-SIZE: 10pt; COLOR: blue"></SPAN> </P>
<P class=MsoNormal><SPAN style="FONT-SIZE: 10pt; COLOR: blue">I want to
make sure I am not rebuilding the wheel here. </SPAN></P>
<P class=MsoNormal><SPAN
style="FONT-SIZE: 10pt; COLOR: blue"></SPAN> </P>
<P class=MsoNormal><SPAN
style="FONT-SIZE: 10pt; COLOR: blue"></SPAN> </P>
<P class=MsoNormal><SPAN
style="FONT-SIZE: 10pt; COLOR: blue"></SPAN> </P></DIV>
<DIV>
<P class=MsoNormal><B><SPAN style="FONT-SIZE: 9pt; COLOR: black">Phylroy
Lopez B.Eng LEED A.P.</SPAN></B><SPAN
style="FONT-SIZE: 9pt; COLOR: black"><BR>Sustainable Building
Specialist<BR>Stantec</SPAN></P></DIV>
<DIV>
<DIV>
<P class=MsoNormal><SPAN style="FONT-SIZE: 9pt; COLOR: gray">1100 - 111
Dunsmuir Street<BR>Vancouver BC V6B 6A3<BR>Ph: (604)
696-8337<BR>Fx: (604) 696-8100</SPAN></P></DIV>
<DIV>
<P class=MsoNormal><SPAN style="FONT-SIZE: 13pt; COLOR: blue"><A
href="http://www.stantec.com/" target=_blank><B><SPAN
style="COLOR: rgb(153,51,51); TEXT-DECORATION: none">stantec</SPAN></B><SPAN
style="COLOR: rgb(0,63,110); TEXT-DECORATION: none">.com</SPAN></A>
</SPAN></P></DIV>
<DIV>
<P class=MsoNormal><SPAN
style="FONT-SIZE: 9pt; COLOR: black"></SPAN> </P></DIV>
<DIV>
<P class=MsoNormal><SPAN style="FONT-SIZE: 9pt; COLOR: black">The
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<DIV
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<P class=MsoNormal><B><SPAN
style="FONT-SIZE: 10pt">From:</SPAN></B><SPAN style="FONT-SIZE: 10pt">
<A href="mailto:equest-users-bounces@lists.onebuilding.org"
target=_blank>equest-users-bounces@lists.onebuilding.org</A> [mailto:<A
href="mailto:equest-users-bounces@lists.onebuilding.org"
target=_blank>equest-users-bounces@lists.onebuilding.org</A>] <B>On
Behalf Of </B>Rob Hudson<BR><B>Sent:</B> Thursday, May 06, 2010 1:16 PM
<DIV><BR><B>To:</B> <A href="mailto:equest-users@lists.onebuilding.org"
target=_blank>equest-users@lists.onebuilding.org</A><BR></DIV>
<DIV><B>Subject:</B> [Equest-users] Reheat/preheat/heating
help</DIV></SPAN>
<P></P>
<P></P></DIV>
<DIV>
<P class=MsoNormal> </P>
<P class=MsoNormal>I have a constant volume VAV system with a preheat
coil, no heating coil, and reheat box at the terminal. The preheat
is steam and the reheat is hot water. I am looking for
verification on the way i set this up in the model. I set the
heating capacity to 0 on the system level and entered in a preheat coil
under the preheat/baseboard tab. Also under the preheat tab, i
entered my capacity and leaving air temp (50deg). On the coil
cap/control tab i have entered my zone entering max supply temp = 87
deg, thats the temp i want the reheats to go up to. Then under
each separate VAV zone, i entered the reheat capacity under the Maximum
Heating Rate. <BR><BR>Let me know if i confused anyone or need to
send pictures or files.<BR><FONT color=#888888><BR>-- <BR>Rob
Hudson</FONT></P></DIV></DIV></DIV><BR></DIV></DIV>
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color=#888888><BR><BR clear=all><BR>-- <BR>Carol Gardner PE<BR>
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clear=all><BR>-- <BR>Carol Gardner PE<BR>
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