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<p>Javier,</p>
<p>That sounds suspiciously like a convergence problem. Have you checked the list file to see if you are running into convergence issues? Have you tried to TRACE the models in question to see what's happening on an iteration by iteration basis? If it's convergence problems then the questions become: are you using a small timestep? Are you using a controller with hysteresis? etc.</p>
<p> </p>
<p>Jeff</p>
<p> </p>
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<pre>---<br />Jeff Thornton
President - TESS LLC
22 N. Carroll Street, Madison WI USA 53703
Office: (608) 274-2577 Fax: (608) 278-1475
www.tess-inc.com
E-Mail: thornton@tess-inc.com
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<p>On 08/01/2017 7:56 am, Javier Vega via TRNSYS-users wrote:</p>
<blockquote type="cite" style="padding-left:5px; border-left:#1010ff 2px solid; margin-left:5px"><!-- html ignored --><!-- head ignored --><!-- meta ignored -->
<div dir="ltr"><span style="font-size: 12.8px;">Hello TRNSYS users,</span>
<div style="font-size: 12.8px;"> </div>
<div style="font-size: 12.8px;">I want to use two Type 11f (controller flow diverter) components with the same control signal. One Type 11f redirects solar collector flow </div>
<div style="font-size: 12.8px;">(Type 553), while the other redirects another circuit's flow to one an Air-Source Heat Pump or a Water Source Heat Pump (Type 941 or Type 927). The events are supposed to happen at the same time.</div>
<div style="font-size: 12.8px;"> </div>
<div style="font-size: 12.8px;">Monitoring the results, my DHW temperature falls. When I looked it up, the flow diverters aren't working at the same time. And what it's worse, something happens with the Heat Pumps: I studied the control signals, and they are activated at the same time, but the heat pump's circuit redirects the flow when it isn't supposed to happen and also the Heat Pump that by mistakes recieves flow doesn't heat the water flow. This is what bothers me the most because I set the Heating control signal to a constant 1, so everytime the HP recieves flow it heats.</div>
<div style="font-size: 12.8px;"> </div>
<div style="font-size: 12.8px;">I simply don't know how to address this issue, same control signals giving different results, and a Heat Pump that recieves flow by mistake but doesn't heat. I would appreciate some help.</div>
<div style="font-size: 12.8px;"> </div>
<div style="font-size: 12.8px;">Kind Regards,<br />Javier Vega</div>
<div style="font-size: 12.8px;">Universidad de Concepcion</div>
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<div class="gmail_extra"><br />
<div class="gmail_quote">2017-07-28 15:29 GMT-04:00 Javier Vega <span><<a href="mailto:jvega025@gmail.com">jvega025@gmail.com</a>></span>:<br />
<blockquote class="gmail_quote" style="margin: 0 0 0 .8ex; border-left: 1px #ccc solid; padding-left: 1ex;">
<div dir="ltr">Hello TRNSYS users,
<div> </div>
<div>I want to use two Type 11f (controller flow diverter) components with the same control signal. One Type 11f redirects solar collector flow </div>
<div>(Type 553), while the other redirects another circuit's flow to one an Air-Source Heat Pump or a Water Source Heat Pump (Type 941 or Type 927). The events are supposed to happen at the same time.</div>
<div> </div>
<div>Monitoring the results, my DHW temperature falls. When I looked it up, the flow diverters aren't working at the same time. And what it's worse, something happens with the Heat Pumps: I studied the control signals, and they are activated at the same time, but the heat pump's circuit redirects the flow when it isn't supposed to happen and also the Heat Pump that by mistakes recieves flow doesn't heat the water flow. This is what bothers me the most because I set the Heating control signal to a constant 1, so everytime the HP recieves flow it heats.</div>
<div> </div>
<div>I simply don't know how to address this issue, same control signals giving different results, and a Heat Pump that recieves flow by mistake but doesn't heat. I would appreciate some help.</div>
<div> </div>
<div>Kind Regards,<br />Javier Vega</div>
<div>Universidad de Concepcion</div>
</div>
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<br />
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