<div>Dear TRNSYS users,</div>
<div> </div>
<div>I want to simulate more than one ground heat exchanger (type 557a) in one file. When I want to insert second one, I receive an error message that says: "The maximum number of instances(1) allowed for type 557 is already reached".</div>
<div><br clear="all">Is there any idea to solve the issue?</div>
<div><br>-- <br>Rambod Rayegan<br>Ph.D Candidate<br>Mechanical Engineering Department<br>Florida International University<br>10555 W Flagler St, EC3620<br>Miami, FL, 33174<br> <br>305-348-3558 (Office)<br>786-218-7375(Cell)<br>
305-348-1932 (Fax)<br></div>