Calibration Menu / 7.3 - Flow Sensor I1
The flow sensor connected to the pulse input I1 must be calibrated to show the correct water flow in the heating circuit.
The calibration value is usually provided in the technical specifications of the given flow sensor.
For the commonly available YF-B10 flow sensor with a 1" connection diameter, the value is 476.
An incorrectly set calibration value for the flow sensor will affect the calculated thermal output and COP, and it may also impact the protection function 8.1 Flow protection.