Electrical Panel; Automatic Coupling; Assembly - Faggiolati Pumps M420 Instrucciones De Instalacion Y Uso

DIRECTION OF ROTATION
The direction of rotation must be carefully checked when
the pumps are started.
Warning If the direction of rotation is wrong
the delivery of the pump is
inadequate and may result in
damage to the unit.
The direction of rotation is correct if, at starting, you
notice an counter-clockwise recoil when looking at the
pump from the cable gland side.
Three-phase: if the direction of rotation is wrong you need
to invert any 2 of the 3 phase wires on the terminal board
of the electrical box.
Danger DO NOT USE THE ELECTRIC
Risk of electric CABLE TO LIFT THE PUMP
shock
Take good care of the supply cable; replace it immediately if damaged.
Warning WARNING! The end of the cable
must not be submerged. The cable
terminals must be securely fastened
above the maximum level of the
liquid, to prevent the water from
penetrating inside the motor through
the cable.

ELECTRICAL PANEL

Danger Do not connect the pump directly
Risk of electric by means a plug; connect the
shock
electric cable to a control box with
thermal protection.
This series of submersible pumps must be equipped with
an electrical control panel. The panel must be designed to
allow both manual and automatic operation.
It should be equipped with at least a low voltage control
circuit, an automatic level control and adjustment circuit, a
circuit for detecting any operating anomalies.
The complete control panel can be supplied upon request.
AUTOMATIC CONTROL
The automatic pump control is obtained by means of two
automatic level regulators which utilize a single-contact
switch (only on or off).
They are installed inside the sump fastened to the bracket
which is secured to the edge of the sump cover (see page
37).
An automatic alternating system must be provided for in
case more than one pump is installed in a single sump.
The intervention levels are adjusted by loosening the
clamps of the fastening bracket and by lifting or lowering
the supply cable. The pump activation regulator must be
positioned at a lower level than the liquid supply pipe.
The shut-off regulator must be positioned so as to prevent
the pump from sucking air.
An alarm system (flashing or siren) can be connected by
means of another regulator (positioned approx. 10 cm.
above the pump activation level).
Warning
To ensure proper operation the regulators must float freely,
be positioned away from the walls or any other
obstruction; they must not come into contact with the
bottom of the sump or be directly in the path of the liquid
supply stream.
The level regulators must also be periodically inspected to
eliminate any caking due to greasy substances or filaments
which may impede normal operations.
WATER INFILTRATION DETECTOR
La pompa è equipaggiata di rivelatore incorporato
d'infiltrazione acqua nella camera olio.
The sensor reveals the presence of water in the oil when it
exceeds 30%. If the sensor is activated the oil should be
changed.
In the event that the sensor is activated again after a short
time since the oil was changed, we recommend the
replacement of the mechanical seal (see oil change page
12).
AUTOMATIC COUPLING WITH TWO
DESCENT GUIDING TUBES
The automatic coupling system allows for quick and
efficient inspection operations.
The coupling foot is fastened to the bottom of the sump
together with the delivery pipe; two guiding tubes connect
it to the anchoring bracket secured to the edge of the sump
cover.
The pump is lowered along the guiding tubes until it
reaches the exact coupling position; the seal will be tight
thanks to the weight of the pump.
This operation can be repeated any number of times and it
makes checking and inspection operations easier; the
pump is simply extracted from the sump by means of a
chain (even if the system is flooded), checked or repaired
and reassembled.

ASSEMBLY

1. Secure the upper bracket of the guiding tube to
the center of the inner wall below the sump cover,
on the side where the delivery pipe must be
installed (see page 36).
11
ENGLISH
The difference in level between the
pump activation and shutdown must
allow for a maximum of 15 starts per
hour.