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Jace,<br>
There is no fundamental incompatibility. Type647 expects a value
between 0 and 1 and the way you have your PID set up, it sounds like it
is outputting a value between 0 and 1. Bear in mind that Type647 does
not automatically divert the remainder of the flow to the other port.
If you have two outlets and all the flow that does not go one direction
automatically goes the other way, you might consider using Type11-f.
And no, this is not the first time I have ever recommended using a
standard Type in place of a TESS Type... :-) <br>
Best,<br>
David<br>
<br>
<br>
On 5/4/2010 00:51, LE GALL, Jace wrote:
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<p class="MsoNormal">Dear TRNSys users,<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">I am currently using a PID Controller to
modulate the water
flow in a chilling installation. The control signal varies from 0 to 1
accordingly to the temperature of the air I want to control but it does
not
have any impact on the Type647 valve I have used to divert the flow. I
therefore have no regulation at all (waterflow remains constant). Do
you know
if there is any incompatibility between these 2 types (no message of
compatibility problem between output and input is shown)?<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Thank you for your help.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Best regards<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Jace LE GALL<o:p></o:p></p>
<p class="MsoNormal">BYME Engineering Hub<o:p></o:p></p>
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