GB
CHECK THE PRIMING OF THE PUMPS
Keeping all the drawing valves closed:
• Press the [AUT/MAN] button for
MANUAL mode start
ATTENTION
Check that the circuit pressure reaches the maximum value. If not, repeat the filling operations of the collection of
aspiration to the pump.
• Repeat the operation on the other
pump
AUTOMATIC STARTING OF THE STANDARD UNIT
After having forced pressure into the unit through the manual driving of the pump, set the pump selectors to the AUTOMATIC position.
From then on, the unit will automatically work according to the quantity of water withdrawn by its use.
CHANGE OF THE WORKING PRESSURE
Our units are set and tested during manufacture and the working pressure is set up according to the characteristic curve of the motor
pumps used.
It is however possible to modify the working pressure value by changing the setting of the pressure switch used.
ATTENTION
The values of pressure switch calibrations must be between the minimum and maximum working pressure levels foreseen
for the pump used in the unit and reported on the plate applied to the pumps themselves.
• Cycle 1
Pressure switch 1 -> Pump1 | Pressure
switch 2 -> Pump 2
Automatic rotation of the pumps is carried out also if only one pump starts.
• Cycle 1
Pressure switch 1 -> Pump 1
ATTENTION
For correct calibration of the pressure switches the following operations must be carried out exactly in the sequence reported.
ATTENTION
For correct calibration of the pressure switches the following operations must be carried out exactly in the sequence
reported.
CUSTOMIZED AUTOMATIC STARTING OF THE BOOSTER
DANGER - ELECTRIC SHOCK RISK
Always shut off the voltage before proceeding to any operation.
22
• Start one pump and verify that max
pressure is reached
• Cycle 2
Pressure switch 1 -> Pump 2 | Pressure
switch 2 -> Pump 1
• Cycle 2
Pressure switch 1 -> Pump 2
• Stop the pump
• Cycle 3
Pressure switch 1 -> Pump 1 | Pressure
switch 2 -> Pump 2