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Sara,<br>
There is not a limitation on the number of Type88s that you can
have in a simulation. I would recommend that if you are trying to
maintain a particular temperature in the rooms, you use Type108
instead of Type2. Type2's controls are based on temperature
differences, not on a specific temperature set point. While Type2
can be set up in order to maintain a specific temperature Type108 is
somewhat more intuitive. <br>
Kind regards,<br>
David<br>
<br>
<br>
On 5/16/2012 03:20, Guilbert Sara wrote:
<blockquote
cite="mid:CANAV46xB-ysZBJU=m64bQi5UF4WSfU6SXV5Ba9K_s6e=CHnmng@mail.gmail.com"
type="cite">
<p class="MsoNormal"><span style="font-family:"Segoe
Print"" lang="EN-US">Hi all, </span></p>
<p class="MsoNormal"><span style="font-family:"Segoe
Print"" lang="EN-US">I modeled on trnsys
a chilled water system with two type 88, two fans (type 3),
two coils (type 52),
two type 92 and just one pump (type 110) </span></p>
<p class="MsoNormal"><span style="font-family:"Segoe
Print"" lang="EN-US">I regulate the room’s
temperature with a controller (type 2)</span></p>
<p class="MsoNormal"><span style="font-family:"Segoe
Print"" lang="EN-US">I don’t know why
but I change the upper dead band dt for one room like 25 °C
for the first room
and 24°C for the other room and when I start the simulation
the both room are
going to 25°C, the two rooms have exactly the same behavior.
The two rooms have
always the same behavior with different features at the
beginning. </span></p>
<p class="MsoNormal"><span style="font-family:"Segoe
Print"" lang="EN-US">Maybe because I can’t
use two type 88 in the same project or something like that.</span></p>
<p class="MsoNormal"><span style="font-family:"Segoe
Print"" lang="EN-US"> </span></p>
<p class="MsoNormal"><span style="font-family:"Segoe
Print"" lang="EN-US">Thank you for your
help</span></p>
<p class="MsoNormal"><span style="font-family:"Segoe
Print"" lang="EN-US">Sara</span></p>
<br>
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<pre class="moz-signature" cols="72">--
***************************
David BRADLEY
Principal
Thermal Energy Systems Specialists, LLC
22 North Carroll Street - suite 370
Madison, WI 53703 USA
P:+1.608.274.2577
F:+1.608.278.1475
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