L1-1- 240V~50Hz
INSTRUCTIONS FOR CORRECT UNIT INSTALLATION
If the column of water
between the pump and the
highest tap exceeds 20m,
the unit cannot be installed
directly on the pump, but it
has to be raised until the
column of water between
the unit and the highest
tap does not exceed 20m.
i.e. If column of water is
25m from the pump, the
unit must be placed 5m
higher than the pump.
It is advisable to connect
the unit outlet to the
system by means of a
Safety valve preventing
water emission in case of
diaphram breaks
DO NOT TOUCH
It is imperative to install
the unit with the arrows in
the upwards position.
The unit can be installed
directly on the pump, or
between the pump and the
The unit is equipped with
a check valve to prevent
the pipeline from losing
pressure.
NO
taps can be installed
between the pump and the
unit.
PUMP’S PRESSURE
The unit is pre-set by the
manufacturer at a restarting
pressure of 2.2 bar.
The pressure produced by
the pump must be normally
0.8 bar higher than the
pre-set pressure.
Before starting the unit
check suction and ensure
that the pump is primed.
20m max
Wiring diagram for
connection of single phase
240V pumps up to 1.5kW.
POSSIBLE WORKING DEFECTS
TYPE OF
DEFECT
CAUSES DEPENDING
ON THE UNIT
CAUSES NOT DEPENDING
ON THE UNIT
The pump
does not start
The electronic card is broken Voltage failure
Pump jammed
Electric cables inverted (line/
motor)
The pump
does not stop
The electronic card is broken
in the upper position
The reset button is blocked
The pump does not provide
Presence of leaks which are higher
min
Intermittent
pump working
The electronic card is broken
The pump does not provide
Presence of leaks which are lower
min
The pump is
jammed
The electronic card is broken
The pump provides a
pressure which is lower than
the restarting pressure
Water failure
Suction problems
WIRING DIAGRAMS FOR CONNECTING THE
UNIT TO DIFFERENT KINDS OF PUMP MOTORS
Installation and maintenance of
the controller must be performed
by a qualified professional.
