47
We reserve the right to make changes without any prior notice.
Translation from original instructions
6.2.5 Adjustment for constant water pressure "Flowzer VD"
If the constant water pressure to the system is to be adjusted through adjustment of the speed of the pump present in the
unit, the inverter that controls it must be suitably adjusted.
The inverter installed in the unit is already factory preset to operate at constant pressure.
The factory-set default pressure must be changed to the desired pressure.
When setting the required pressure value for the system, make sure that, with the highest number of users
closed, the water flow rate is in any case above the lowest valued allowed for the unit.
Do not set the water flow rate outside the operating limits allowed in the technical booklet.
6.2.5.1
Setting the desired pressure
To set the desired pressure:
1. press “Menu”, go to “Parameters” using the arrow buttons and confirm with “Select”;
2. in the “Parameters” menu, select “Complete List” using the arrow buttons and confirm with “Select”;
3. using the arrow buttons, select group “40” and confirm with “Select”;
4. using the arrow buttons, select parameter “40.21” and confirm with “Edit”;
5. using the arrow buttons, set the desired pressure value and confirm with “Save”;
6. to exit the settings, press the “back” and “exit” button 3 times.
