I changed the pump from the loop that was already built and removed the flowmeter and the thermometer that were already installed. I used the D5 40% PWM setting in the existing configuration. At this time, the flow rate is 2.76L / m, which is calculated 165L / h, so i think about the flow rate seems to be no problem.. Should I preserve the pressure in the loop when I shut off the loop? I open the lid of the water bottle once to remove the air bubble.

Hello~ I received 'D5 Next' pump on Christmas Eve to Ttorysystems in Korea. By the way, Virtual Flow Sensor does not work, do I need additional configuration? I tried the calibration several times by shutting off the ball valve as described, but it still does not change at 0L / h. I've tested the pump speeds varying, but the results are the same. I tried blocking with a ball valve on an aqua filter. Should I block the outlet directly? Please~ Help..... My system is structured like this. "HeatKi...