<div dir="ltr"><div>Dear TRNSYS users,</div><div><br></div><div>I'm trying to model a domestic hot water using the type 156 for water storage. The pump is controlled by the type 165 (2-5 °C as hysteresis). But the difference between the temperature at the outlet of the collector and the lower tank temperature
is always higher than 2°C. So the pump is always ON. When I checked in the plotter, it seems like the temperature is equal to the temperature of the immersed heat exchanger even at night when there's no radiation. <br></div><div><br></div><div>Can anyone help me fix this please ? <br></div><div><br></div><div>Regards,</div><div>Amadou<br></div></div>