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<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>Everyone, I have examined the help files regarding the Solid
Desiccant Preconditioner and have played around with the Desic Ctrl
Mode/Configuration Option. When I select Option 1 or 2, I can see some
heat exchanger parameters appear. However I don’t see any other
parameters that I can adjust. Are there any parameters related to the desiccant
wheel itself (efficiency, motor energy), the extra fan energy required or the
regeneration heater operation? If so, where are they? And wouldn’t there
be a place where you specify the exit dewpoint control temperature like the DESC-DEW-SET
that appears in the Liquid Desiccant Unit? <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><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>As an alternative, I could use the Packaged Desiccant option
if I could figure out how to create the performance curves required. I think I know
how to make BI-Quadratic-T curves using Data Input, but I do not understand why
the Package Desiccant wants an exit temperature and humidity curve based on return
temperature wb and outdoor wb. Is the return temperature wb supposed to
represent the air temperature going through the top half of the desiccant wheel
and the outside air wb represents the outside air going through the bottom half
of the desiccant wheel? If this is correct, are there any default curves
in the Performance Curve Library that I can use? I see there are a number of “Desc-
“ type curve fits in the Performance Curve Library , but I can’t
figure out what they are and if any are useful for a packaged solid desiccant
system. I think that most of them have to with liquid desiccant systems and not
solid. <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><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>If anyone knows how to access/adjust Solid Desiccant parameters
that aren’t the heat exchanger parameters, or knows how to find/create
curves for a Packaged Desiccant system, please get in touch. 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=section1 style='margin:0in;margin-bottom:.0001pt'><strong><b><font
size=3 color=black face=Arial><span style='font-size:12.0pt;font-family:Arial;
color:black'>Kathryn Kerns</span></font></b></strong><o:p></o:p></p>
<p class=section1 style='margin:0in;margin-bottom:.0001pt'><em><b><i><font
size=2 face=Arial><span style='font-size:11.0pt;font-family:Arial;font-weight:
bold;font-style:normal'>Systems Specialist</span></font></i></b></em><o:p></o:p></p>
<p class=section1 style='margin:0in;margin-bottom:.0001pt'><em><b><i><font
size=3 color=teal face="Times New Roman"><span style='font-size:12.0pt;
font-variant:small-caps;color:teal;font-weight:bold;font-style:normal'>BCE</span></font></i></b></em><strong><b><font
size=2 color=teal face="Times New Roman"><span style='font-size:10.0pt;
font-variant:small-caps;color:teal'> </span></font><font color=teal><span
style='font-variant:small-caps;color:teal'>Engineers, Inc.<o:p></o:p></span></font></b></strong></p>
<p class=section1 style='margin:0in;margin-bottom:.0001pt'><strong><b><font
size=1 color=black face="Times New Roman"><span style='font-size:9.0pt;
color:black'>| Ph: 253.922.0446 | Fx: 253.922.0896 |</span></font></b></strong><font
size=1 color=black><span style='font-size:7.0pt;color:black'> <o:p></o:p></span></font></p>
<p class=MsoNormal><font size=4 color=black face=Arial><span style='font-size:
13.5pt;font-family:Arial;color:black'> <o:p></o:p></span></font></p>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'><o:p> </o:p></span></font></p>
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