Subject
Description
Function of Part
It is the element that detects the request when the flow
starts in the domestic water installation.
Impact in Case of Malfunction
1- The domestic water request cannot be detected and heating
does not occur.
2- The device will not work.
Main Associated Error Codes
-
Diagnostics and Test Method
1- Checking that the cable connections are undamaged
2- Checking whether there is any oxidation, etc. effect in the
flow sensor cable inlet area
3- Voltage test
4- Filter cleaning and control of flow turbine group
Note: If the P00 parameter is "5", the device will only work in
central heating, so it will not work in domestic water.
Maintenance Requirement
There is no special maintenance requirement.
Test definition
Test Method
Flow sensor voltage test
Turn on the domestic water when the device is powered on. The
electrical connector on the flow sensor is removed and DC
voltage between the "IN"-"GND" terminals shown below is
measured. It is checked that the voltage is in the range of 11.5-
12.5 VDC.
4.16. Flow Sensor
GND
Supply
47
