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<DIV dir=ltr align=left><SPAN class=562512919-03012008><FONT face="Courier New"
color=#0000ff size=2>Hello Mike,</FONT></SPAN></DIV>
<DIV dir=ltr align=left><SPAN class=562512919-03012008><FONT face="Courier New"
color=#0000ff size=2></FONT></SPAN> </DIV>
<DIV dir=ltr align=left><SPAN class=562512919-03012008><FONT face="Courier New"
color=#0000ff size=2>Whenever we need to add water source heat pumps to a
project, we import this .inp file code snippet:</FONT></SPAN></DIV>
<DIV dir=ltr align=left><SPAN class=562512919-03012008><FONT face="Courier New"
color=#0000ff size=2></FONT></SPAN> </DIV><SPAN class=562512919-03012008>
<DIV dir=ltr align=left><BR><FONT face="Courier New" color=#0000ff size=2>$
*********************************************************<BR>$
**
**<BR>$ ** HVAC Circulation Loops / Plant
Equipment **<BR>$
**
**<BR>$ *********************************************************</FONT></DIV>
<DIV><FONT face="Courier New" color=#0000ff size=2></FONT> </DIV>
<DIV dir=ltr align=left><FONT face="Courier New" color=#0000ff size=2>$
---------------------------------------------------------<BR>$
Pumps<BR>$
---------------------------------------------------------</FONT></DIV>
<DIV><FONT face="Courier New" color=#0000ff size=2></FONT> </DIV>
<DIV dir=ltr align=left><FONT face="Courier New" color=#0000ff size=2>"WLHP Loop
Pump" = PUMP<BR>
NUMBER =
1<BR> MOTOR-CLASS =
HI-EFF<BR> ..<BR>"WLHP Blr (HWNatDrft) Pump" = PUMP<BR>
MOTOR-CLASS = HI-EFF<BR>
..</FONT></DIV>
<DIV><FONT face="Courier New" color=#0000ff size=2></FONT> </DIV>
<DIV dir=ltr align=left><FONT face="Courier New" color=#0000ff size=2>$
---------------------------------------------------------<BR>$
Circulation Loops<BR>$
---------------------------------------------------------</FONT></DIV>
<DIV><FONT face="Courier New" color=#0000ff size=2></FONT> </DIV>
<DIV dir=ltr align=left><FONT face="Courier New" color=#0000ff size=2>"WLHP
Water Loop" = CIRCULATION-LOOP<BR>
TYPE =
WLHP<BR> LOOP-OPERATION = STANDBY<BR>
DESIGN-HEAT-T = 70<BR>
DESIGN-COOL-T = 85<BR> COOL-SETPT-CTRL =
FIXED<BR> LOOP-PUMP =
"WLHP Loop Pump"<BR> ..</FONT></DIV>
<DIV><FONT face="Courier New" color=#0000ff size=2></FONT> </DIV>
<DIV dir=ltr align=left><FONT face="Courier New" color=#0000ff size=2>$
---------------------------------------------------------<BR>$
Boilers<BR>$
---------------------------------------------------------</FONT></DIV>
<DIV><FONT face="Courier New" color=#0000ff size=2></FONT> </DIV>
<DIV dir=ltr align=left><FONT face="Courier New" color=#0000ff size=2>"WLHP Blr
(HWNatDrft)" = BOILER<BR>
TYPE =
HW-BOILER<BR> HEAT-INPUT-RATIO = 1.25<BR>
HW-LOOP = "WLHP Water
Loop"<BR>
HW-PUMP = "WLHP Blr
(HWNatDrft) Pump"<BR> ..</FONT></DIV>
<DIV><FONT face="Courier New" color=#0000ff size=2></FONT> </DIV>
<DIV dir=ltr align=left><FONT face="Courier New" color=#0000ff size=2>$
---------------------------------------------------------<BR>$
Heat Rejection<BR>$
---------------------------------------------------------</FONT></DIV>
<DIV><FONT face="Courier New" color=#0000ff size=2></FONT> </DIV>
<DIV dir=ltr align=left><FONT face="Courier New" color=#0000ff size=2>"WLHP
Fluid Cooler" = HEAT-REJECTION<BR>
TYPE =
FLUID-COOLER<BR> CAPACITY-CTRL =
ONE-SPEED-FAN<BR>
CW-LOOP = "WLHP Water
Loop"<BR> ..</FONT></DIV>
<DIV><FONT face="Courier New" color=#0000ff size=2></FONT> </DIV>
<DIV dir=ltr align=left><BR><FONT face="Courier New"><FONT color=#0000ff><FONT
size=2>If you already have heat pump <SPAN class=562512919-03012008>plant
</SPAN>equipment <SPAN class=562512919-03012008>defined</SPAN>, it may
require cutting <SPAN class=562512919-03012008>(existing) </SPAN>and
pasting<SPAN class=562512919-03012008> (new) equipment directly from your .inp
file -- be sure of course to make a backup. Is the campus
he rejection loop ultimately air cooled or ground source? If air
cooled then the fluid cooler heat rejection should be reasonable. If
ground source, try this code snippet instead for
starters:</SPAN></FONT></FONT></FONT></DIV>
<DIV dir=ltr align=left><FONT face="Courier New"><FONT color=#0000ff><FONT
size=2><SPAN
class=562512919-03012008></SPAN></FONT></FONT></FONT> </DIV><SPAN
class=562512919-03012008>
<DIV dir=ltr align=left><BR><FONT face="Courier New" size=2>$
*********************************************************<BR>$
**
**<BR>$ ** HVAC Circulation Loops / Plant
Equipment **<BR>$
**
**<BR>$ *********************************************************</FONT></DIV>
<DIV><FONT face="Courier New" size=2></FONT> </DIV>
<DIV dir=ltr align=left><FONT face="Courier New" size=2>$
---------------------------------------------------------<BR>$
Pumps<BR>$
---------------------------------------------------------</FONT></DIV>
<DIV><FONT face="Courier New" size=2></FONT> </DIV>
<DIV dir=ltr align=left><FONT face="Courier New" size=2>"GSHP Loop Pump" =
PUMP<BR>
NUMBER =
1<BR> MOTOR-CLASS =
HI-EFF<BR> ..</FONT></DIV>
<DIV><FONT face="Courier New" size=2></FONT> </DIV>
<DIV dir=ltr align=left><FONT face="Courier New" size=2>$
---------------------------------------------------------<BR>$
Circulation Loops<BR>$
---------------------------------------------------------</FONT></DIV>
<DIV><FONT face="Courier New" size=2></FONT> </DIV>
<DIV dir=ltr align=left><FONT face="Courier New" size=2>"GSHP Water Loop" =
CIRCULATION-LOOP<BR>
TYPE =
WLHP<BR> LOOP-OPERATION = SUBHOUR-DEMAND<BR>
DESIGN-HEAT-T = 30<BR>
DESIGN-COOL-T = 110<BR> COOL-SETPT-CTRL =
FIXED<BR> MAX-ALARM-T =
110<BR> MIN-ALARM-T =
30<BR> LOOP-PUMP = "GSHP
Loop Pump"<BR> ..</FONT></DIV>
<DIV><FONT face="Courier New" size=2></FONT> </DIV>
<DIV dir=ltr align=left><FONT face="Courier New" size=2>$
---------------------------------------------------------<BR>$
Ground Loop Heat Exchangers<BR>$
---------------------------------------------------------</FONT></DIV>
<DIV><FONT face="Courier New" size=2></FONT> </DIV>
<DIV dir=ltr align=left><FONT face="Courier New" size=2>"GLHX (VertWell-CM)" =
GROUND-LOOP-HX<BR>
TYPE =
VERT-WELL-NEW<BR> CONFIGURATION =
"Rectangle-3x5"<BR>
DEPTH =
200<BR>
SPACING =
20<BR> PIPE-OUTSIDE-DIA = 1.05<BR> PIPE-INSIDE-DIA
= 0.859<BR> U-TUBE-LEG-SEP = 3.9<BR>
PIPE-COND = 0.23<BR>
FIELD-MULTIPLIER = 1<BR> GRND-DIFFUSIVITY =
0.0432208<BR> GRND-COND =
1.68<BR> NUM-OF-YEARS = 0<BR>
GROUT-COND = 0.85<BR>
BOREHOLE-DIAM = 6<BR>
REF-GRND-ADJ = 5<BR>
FLUID =
WATER<BR> CIRCULATION-LOOP = "GSHP Water Loop"<BR>
..</FONT></DIV>
<DIV><FONT face="Courier New" size=2></FONT> </DIV>
<DIV><SPAN class=562512919-03012008><FONT face="Courier New" color=#0000ff
size=2> </FONT></SPAN></DIV>
<DIV dir=ltr align=left><SPAN class=562512919-03012008></SPAN><FONT
face="Courier New"><FONT color=#0000ff><FONT size=2>H<SPAN
class=562512919-03012008>ope that helps...if not, verify your schedules against
a known good project. Personally I change at the auto-generated schedules
whenever possible, here's a couple of posts on how to do
that:</SPAN></FONT></FONT></FONT></DIV>
<DIV dir=ltr align=left><FONT face="Courier New"><FONT color=#0000ff><FONT
size=2><SPAN class=562512919-03012008></SPAN></FONT></FONT></FONT> </DIV>
<DIV dir=ltr align=left><FONT face="Courier New"><FONT color=#0000ff><FONT
size=2><SPAN class=562512919-03012008><A
href="http://elcca-exchange.blogspot.com/search/label/Schedules">http://elcca-exchange.blogspot.com/search/label/Schedules</A></SPAN></FONT></FONT></FONT></DIV>
<DIV dir=ltr align=left><FONT face="Courier New"><FONT color=#0000ff><FONT
size=2><SPAN class=562512919-03012008></SPAN></FONT></FONT></FONT> </DIV>
<DIV dir=ltr align=left><FONT face="Courier New"><FONT color=#0000ff><FONT
size=2><SPAN class=562512919-03012008></SPAN></FONT></FONT></FONT> </DIV>
<DIV dir=ltr align=left><FONT face="Courier New"><FONT color=#0000ff><FONT
size=2><SPAN class=562512919-03012008>Brando</SPAN></FONT></FONT></FONT></DIV>
<DIV dir=ltr align=left><FONT face="Courier New"><FONT color=#0000ff><FONT
size=2><SPAN
class=562512919-03012008></SPAN></FONT></FONT></FONT></SPAN></SPAN> </DIV>
<DIV align=left>
<DIV align=left><FONT face=Arial size=2></FONT> </DIV><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial; mso-bidi-font-size: 12.0pt">
<DIV><SPAN
style="FONT-SIZE: 10pt; COLOR: gray; FONT-FAMILY: Arial; mso-bidi-font-size: 12.0pt"><SPAN
class=212011020-11052004><FONT color=#000000>Brandon Nichols,
PE, LEED<SUP><SPAN style="FONT-SIZE: 8pt">®</SPAN></SUP>
AP</FONT></SPAN></SPAN></DIV>
<DIV><SPAN
style="FONT-SIZE: 10pt; COLOR: gray; FONT-FAMILY: Arial; mso-bidi-font-size: 12.0pt"><SPAN
class=212011020-11052004><FONT
color=#000000>Mechanical</FONT></SPAN></SPAN></DIV>
<DIV><SPAN
style="FONT-SIZE: 10pt; COLOR: gray; FONT-FAMILY: Arial; mso-bidi-font-size: 12.0pt"><FONT
color=#000080><STRONG>HARGIS ENGINEERS</STRONG></FONT></DIV>
<P class=MsoNormal style="MARGIN: 0in 0in 0pt"><SPAN
style="FONT-SIZE: 10pt; COLOR: gray; FONT-FAMILY: Arial; mso-bidi-font-size: 12.0pt"><FONT
color=#515151>600 Stewart Street</FONT></SPAN></P>
<P class=MsoNormal style="MARGIN: 0in 0in 0pt"><SPAN
style="FONT-SIZE: 10pt; COLOR: gray; FONT-FAMILY: Arial; mso-bidi-font-size: 12.0pt"><FONT
color=#515151>Suite 1000</FONT></SPAN></P>
<P class=MsoNormal style="MARGIN: 0in 0in 0pt"><SPAN
style="FONT-SIZE: 10pt; COLOR: gray; FONT-FAMILY: Arial; mso-bidi-font-size: 12.0pt"><FONT
color=#515151>Seattle, WA 98101<o:p></o:p></FONT></SPAN></P>
<P class=MsoNormal style="MARGIN: 0in 0in 0pt"><SPAN
style="FONT-SIZE: 10pt; COLOR: gray; FONT-FAMILY: Arial; mso-bidi-font-size: 12.0pt"><FONT
color=#515151>www.hargis.biz<o:p></o:p></FONT></SPAN></P>
<P class=MsoNormal style="MARGIN: 0in 0in 0pt"><SPAN
style="FONT-SIZE: 10pt; COLOR: gray; FONT-FAMILY: Arial; mso-bidi-font-size: 12.0pt"><FONT
color=#515151> <o:p></o:p></FONT></SPAN></P>
<P class=MsoNormal style="MARGIN: 0in 0in 0pt"><B><SPAN
style="FONT-SIZE: 10pt; COLOR: gray; FONT-FAMILY: Arial; mso-bidi-font-size: 12.0pt">d
|</SPAN></B><SPAN
style="FONT-SIZE: 10pt; COLOR: gray; FONT-FAMILY: Arial; mso-bidi-font-size: 12.0pt">
206.436.04<SPAN class=212011020-11052004>0</SPAN>0<SPAN
style="mso-spacerun: yes"> </SPAN><B>c | </B>206.<SPAN
class=212011020-11052004>228.8707</SPAN></SPAN></P>
<P class=MsoNormal style="MARGIN: 0in 0in 0pt"><SPAN
style="FONT-SIZE: 10pt; COLOR: gray; FONT-FAMILY: Arial; mso-bidi-font-size: 12.0pt"><SPAN
class=212011020-11052004></SPAN></SPAN><FONT color=#515151><B><SPAN
style="FONT-SIZE: 10pt; COLOR: gray; FONT-FAMILY: Arial; mso-bidi-font-size: 12.0pt; mso-fareast-font-family: 'Times New Roman'; mso-ansi-language: EN-US; mso-fareast-language: EN-US; mso-bidi-language: AR-SA">o
|</SPAN></B><SPAN
style="FONT-SIZE: 10pt; COLOR: gray; FONT-FAMILY: Arial; mso-bidi-font-size: 12.0pt; mso-fareast-font-family: 'Times New Roman'; mso-ansi-language: EN-US; mso-fareast-language: EN-US; mso-bidi-language: AR-SA">
206.448.3376<SPAN style="mso-spacerun: yes"> </SPAN><B>f <SPAN
style="mso-spacerun: yes"> </SPAN>|</B>
206.448.4450</SPAN></FONT></P></SPAN></SPAN>
<DIV> </DIV></DIV>
<DIV> </DIV><BR>
<DIV class=OutlookMessageHeader lang=en-us dir=ltr align=left>
<HR tabIndex=-1>
<FONT face=Tahoma size=2><B>From:</B> bldg-sim-bounces@lists.onebuilding.org
[mailto:bldg-sim-bounces@lists.onebuilding.org] <B>On Behalf Of </B>Mike
Gutowski<BR><B>Sent:</B> Wednesday, January 02, 2008 3:15 PM<BR><B>To:</B>
bldg-sim@lists.onebuilding.org<BR><B>Subject:</B> [Bldg-sim] eQuest modeling
water-source heat pumps<BR></FONT><BR></DIV>
<DIV></DIV>
<DIV class=Section1>
<P class=MsoNormal>Hello All,<o:p></o:p></P>
<P class=MsoNormal><o:p> </o:p></P>
<P class=MsoNormal>My first post to bldg-sim, I have learned a great deal from
your emails.<o:p></o:p></P>
<P class=MsoNormal><o:p> </o:p></P>
<P class=MsoNormal>I am trying to wrap up an eQuest model of a school that is
using water source heat pumps (located in Georgia). The building is
connecting to a campus condenser water loop, so there is no heat rejection
system that is actually part of the project, but I have to include something in
eQuest, which I have modeled as a cooling tower and variable speed
pump.<o:p></o:p></P>
<P class=MsoNormal><o:p> </o:p></P>
<P class=MsoNormal>I am running in to issues with no heating or cooling energy
being reported in the BEPS report, and 94% of hours outside throttling
range. I have tried several different types of HVAC systems (pkgd single
zone, water loop HP, pkgd var vol var temp) all with condenser type as “water
cooled” (except for water loop hp which doesn’t allow you to pick a condenser
type). I have set my circulation loop for condenser water to loop type
“condenser water” and also tried loop type “Water Loop HP” which no
success. When I use “Water Loop HP” I get an error message “Loop: WLHP
water loop has no primary heating equipment.”<o:p></o:p></P>
<P class=MsoNormal><o:p> </o:p></P>
<P class=MsoNormal>On my HVAC systems “heating – coil capacity” display I have
heat source set to “heat pump” and zone heat source as “not
installed”<o:p></o:p></P>
<P class=MsoNormal><o:p> </o:p></P>
<P class=MsoNormal>Any ideas? A bad combination of system type and heat
rejection maybe? I have tried all combinations that I can think
of.<o:p></o:p></P>
<P class=MsoNormal><o:p> </o:p></P>
<P class=MsoNormal>Thanks for taking a look,<o:p></o:p></P>
<P class=MsoNormal><o:p> </o:p></P>
<P class=MsoNormal>Mike Gutowski, PE<o:p></o:p></P>
<P class=MsoNormal>BVM Engineering<o:p></o:p></P>
<P class=MsoNormal><o:p> </o:p></P></DIV><BR>
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