<div dir="ltr"><div style="font-size:12.8000001907349px">>> I need to active circulating pump when a heat pump active and when cooling tower active, but a heat pump and cooling tower not active at same time.</div><div style="font-size:12.8000001907349px"><br></div><div style="font-size:12.8000001907349px">>> I need to use a logic OR to control, how can I create a control model in TRNSYS for this requirement?, or any ones has another idea please tell me.</div><div style="font-size:12.8000001907349px"><br></div><div style="font-size:12.8000001907349px">>>Thanks you for your help.</div><div><br></div>-- <br><div class="gmail_signature"><div dir="ltr"><div dir="ltr"><div style="line-height:21.2999992370605px;font-family:Calibri,sans-serif;font-size:15px"><span style="line-height:21.2999992370605px"><font face="Comic Sans MS" style="line-height:normal" color="#444444">Best regards,</font></span></div><div style="line-height:21.2999992370605px;font-family:Calibri,sans-serif;font-size:15px"><font face="Comic Sans MS" style="line-height:normal;background-color:rgb(255,255,255)" color="#444444">----------</font></div><div style="line-height:21.2999992370605px;font-family:Calibri,sans-serif;font-size:15px"><span style="line-height:22.7199993133545px;font-size:12pt"><font style="line-height:normal"><div style="line-height:22.7199993133545px;display:inline!important"><span style="line-height:22.7199993133545px;font-size:12pt"><font face="Comic Sans MS" style="line-height:normal" color="#444444"><b>Mr.Theeraphat Sri-on</b></font></span></div></font></span></div><div><font face="Comic Sans MS" color="#666666"><span style="font-size:16px"><b>Graduate Student</b></span></font></div></div></div></div>
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