closely the following Instructions:
• Always unplug the device from the
mains before carrying out OFF work
on it.
• Be sure that the electric line
connecting the device to the mains
and the extension leads have a
crass-section suitable for pump
power and he sure that the electrical
connections are far away from any
water source.
• When used for swimming pools,
ponds and fountains It Is necessary
to use an automatic RCD with
10n=3mA protection.
WARNING: when the pump
stops the pipes are under pressure
consequently we recommend
opening a tap to discharge the
system before carrying out any
work.
OPERATING INSTRUCTIONS
Theswitchstartsupthepumpfor
35seconds once connected to the line.
Any further pump starting occurs when
the preset operating pressure value is
reached, accordingly to the drop in
pressure in the tubing when opening
tap. In the traditional water systems
equipped with pressure switch and
pressure tank, the pump stops when a
certain pressure value is reached. On
the contrary this device was designed
tostopthepumptostopthepump
depending on the reduction of the flow
to minimum levels.
Once this condition has been reached,
the regulator delays the real stop of the
pumpofatimingrunningfrom27to35
seconds: the logic of this function is to
reduce the staring operations of the
pumps in case of minimum flow
conditions.
INSTALLATION
1. Install the regulator anywhere
between the pump and the first service
outlet so that the arrow on the case is
pointing in the same direction as the
fluid flowing through the pipe. Check
perfect water tightness of all water
connections. If you are using a pump
with a pressure higher than 10 bar,
install a pressure reducer on the
regulators inlet.
2. For the electrical connection of the
version supplied without electric leads,
follow the wiring diagram on the printed
circuit board cover lice only suitable
wire nippers to wire the Fastons. tf the
leads are included, simply connect the
pump’s power plug to the regulator
socket and its own power plug to a
current outlet.
3. Operating pressure is pre-set at 1.5
bar which is the optimum value for the
majority of applications. Minimum
operating pressure can be adjusted as
needed by turning the screw situated
on the inside flange marked with +
and.
WARNING: TO ENSURE CORRECT
WORKING OF THE, MAXIMUM
PUMP PRESSURE MUST BE AT
LEAST 0,6 BAR HIGHER THAN
OPERATING PRESSURE.
Starting
WARNING: Whenever the level
of the priming water is lower than the
level at the water where the pomp it
placed, a suction tine equipped with an
antibackflow foot valve is absolutely
essential. This valve allows the tine to
he fitted when it is first used and
prevents it from being emptied when
the pomp steps.