<br><font size=2 face="sans-serif">Fred,</font>
<br>
<br><font size=2 face="sans-serif">Heating and cooling mode in Type 668
are 100 % independent. In heating mode, only the heating performance map
is called. If your data file is correct, you should see that heat is added
to the load side and drawn from the source side. Make sure that the cooling
control signal is left to zero.</font>
<br>
<br><font size=2 face="sans-serif">Best regards,</font>
<br><font size=2 face="sans-serif">Knut Erik Enerstvedt </font>
<br>
<br>
<br>
<table width=100%>
<tr valign=top>
<td><font size=1 color=#5f5f5f face="sans-serif">From:</font>
<td><font size=1 face="sans-serif">trnsys-users-request@cae.wisc.edu</font>
<tr valign=top>
<td><font size=1 color=#5f5f5f face="sans-serif">To:</font>
<td><font size=1 face="sans-serif">trnsys-users@cae.wisc.edu</font>
<tr valign=top>
<td><font size=1 color=#5f5f5f face="sans-serif">Date:</font>
<td><font size=1 face="sans-serif">03/09/2010 07:11 PM</font>
<tr valign=top>
<td><font size=1 color=#5f5f5f face="sans-serif">Subject:</font>
<td><font size=1 face="sans-serif">TRNSYS-users Digest, Vol 63, Issue 18</font></table>
<br>
<hr noshade>
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<br>
<br><tt><font size=2><br>
</font></tt><font size=2 color=#800080 face="sans-serif"><br>
</font>
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<td>
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<td>
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<td>
<div align=right><font size=3><b>Subject:</b></font></div>
<td><font size=3>Re: [TRNSYS-users] Type 668 Heat Pump Performance Issues</font></table>
<br><tt><font size=2>Sorry, I should have been more clear. I do have the
sample catalog data cooling map in there, but I am wondering if the very
different capacities are effecting the results. <br>
<br>
Are the heating and cooling mode calculations 100% independent, or are
both performance maps called in the calculation?<br>
<br>
Fred<br>
<br>
FRED BETZ PhD., LEED AP <br>
SUSTAINABLE SYSTEMS ANALYST<br>
<br>
AEI | AFFILIATED ENGINEERS, INC. <br>
5802 Research Park Blvd. | Madison, WI 53719<br>
<br>
P: 608.236.1175 | F: 608.238.2614 <br>
fbetz@aeieng.com | </font></tt><a href=www.aeieng.com><tt><font size=2>www.aeieng.com</font></tt></a><tt><font size=2>
<br>
<br>
<br>
<br>
-----Original Message-----<br>
From: Francois Badinier [</font></tt><a href=mailto:francois.badinier@icax.co.uk><tt><font size=2>mailto:francois.badinier@icax.co.uk</font></tt></a><tt><font size=2>]
<br>
Sent: Tuesday, March 09, 2010 11:31 AM<br>
To: Fred Betz; trnsys-users@cae.wisc.edu<br>
Subject: RE: [TRNSYS-users] Type 668 Heat Pump Performance Issues<br>
<br>
Hi Fred<br>
<br>
I don't know if it works well without a cooling map, but if you need to
use<br>
the heating mode only, you can use the default cooling file in the<br>
"SampleCatalogData" folder to fill in the gap. <br>
<br>
Regards,<br>
<br>
François Badinier<br>
Development Engineer<br>
ICAX Ltd<br>
1 Hatfield House <br>
Baltic Street West<br>
London EC1Y OST<br>
francois.badinier@icax.co.uk<br>
</font></tt><a href=www.icax.co.uk><tt><font size=2>www.icax.co.uk</font></tt></a><tt><font size=2><br>
<br>
<br>
<br>
-----Original Message-----<br>
From: Fred Betz [</font></tt><a href=mailto:fbetz@aeieng.com><tt><font size=2>mailto:fbetz@aeieng.com</font></tt></a><tt><font size=2>]
<br>
Sent: 09 March 2010 17:08<br>
To: trnsys-users@cae.wisc.edu<br>
Subject: [TRNSYS-users] Type 668 Heat Pump Performance Issues<br>
<br>
TRNSYS Users, <br>
<br>
I am using a type669 heat pump in heating mode only and I have entered
a<br>
performance map for the heating side. <br>
<br>
If I am using type668 in a heating mode only way, do I need to input a<br>
corresponding cooling map?<br>
<br>
In other words, are both a heating and a cooling map required for proper<br>
operation of a heat pump in heating only mode?<br>
<br>
What I am seeing in my output is that the heat pump heats the load side,
but<br>
does not draw any heat from the source side. <br>
<br>
Please advise,<br>
<br>
Fred<br>
<br>
FRED BETZ PhD., LEED AP <br>
SUSTAINABLE SYSTEMS ANALYST<br>
<br>
AEI | AFFILIATED ENGINEERS, INC. <br>
5802 Research Park Blvd. | Madison, WI 53719<br>
<br>
P: 608.236.1175 | F: 608.238.2614 <br>
fbetz@aeieng.com | </font></tt><a href=www.aeieng.com><tt><font size=2>www.aeieng.com</font></tt></a><tt><font size=2>
<br>
<br>
<br>
<br>
_______________________________________________<br>
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