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<p>Use an Equation and multiply together the control signal for the pump (and others if necessary) and the output from an annual forcing function. Then drive the pumps/heaters with the new control signal. The forcing function would be set to 1 for the balance of the year and to 0 for the summer:</p>
<p> </p>
<p>Unit 1 Type 14 Forcing Function: Summer</p>
<p>Parameters 12</p>
<p>0,0 3624,0 3624,1 5088,1 5088,0 8760,0</p>
<p> </p>
<p>Unit 2 Type X Solar Controller</p>
<p><Snip></p>
<p> </p>
<p>Equations 3</p>
<p>Summer=[1,1]</p>
<p>OK_Solar=[2,1]</p>
<p>On_SolarPump=(1-Summer)*OK_Solar</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 05/06/2014 1:59 pm, Aamir Mehmood wrote:</p>
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<div>Respected Sir,</div>
Kindly guide me how solar collector operation can be stopped for a specific time period?</div>
Actually I want to stop the operation of solar water heater system for summer months. Which function can be used for this purpose and in what way?</div>
Waiting for your kind reply!<br /><br />
<div>Best Regards,</div>
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<div><span style="color: #20124d;"><span style="font-family: georgia,serif;"><em><span><strong>Aamir Mehmood</strong></span><br /></em></span></span></div>
<span style="font-size: xx-small;"><span style="color: #20124d;"><span style="font-family: georgia,serif;"><em>Post-Graduate Researcher<br /></em></span></span></span></div>
<span style="font-size: xx-small;"><span style="color: #20124d;"><span style="font-family: georgia,serif;"><em>Center for Energy Systems (CES)<br /></em></span></span></span></div>
<span style="font-size: xx-small;"><span style="color: #20124d;"><span style="font-family: georgia,serif;"><em>National University of Sciences and Technology (NUST),<br /></em></span></span></span></div>
<span style="font-size: xx-small;"><span style="color: #20124d;"><span style="font-family: georgia,serif;"><em>Islamabad, Pakistan.<br /></em></span></span></span></div>
<span style="font-size: xx-small;"><span style="color: #20124d;"><span style="font-family: georgia,serif;"><em>Mob: <span style="text-decoration: underline;">+92-300-650-7809</span></em></span></span></span></div>
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