Saci pumps easytronic Manual De Instalación Y Mantenimiento página 20

• You must correctly size the electrical supply cables to the device, and from the device to the
pump or pumps, in accordance with current regulations in your own country, depending on
the nominal consumption of the motor and 17 the length of cable required. Below is a table
with the maximum recommended lengths depending on the section of the electrical cable for
operation of a single pump. In the case of an installation of 2 pumps with the possibility of
operating both at the same time, the maximum cable distances shown in the following table
must be considered half of the indicated value.
Supply
EASYTRONIC
230 V Single Phase
230 V Three Phase
400 V Three Phase
• Each interface cable must be shorter than 3 meters.
• Use the appropriate cable glands to secure the cable.
• Also make sure that the electrical network has electrical protections, in particular the use of a
differential switch is recommended (300mA, class A for domestic applications).
• It is recommended, in addition to the differential switch, that the installation has a magne-
to-thermal protection and an electrical main switch to control the electrical supply to the
device.
The ground must be properly connected. If the ground connection is not connected, it
may result in electric shock or fire.
Recommendations in case of installation in a booster set or in a loaded water lifting group:
• It is recommended that the multiple pumping group be made up of the same pumps and,
therefore, of the same power and hydraulic performance.
• For the operation of the device it is essential to use pressure switches, hanging level probes,
float level switches or a pressure transducer (4-20mA).
• In case of controlling the device through the pressure transducer, this must always be as close
as possible to the pumping group, as close as possible to the membrane expander, and always
after the general check valve of the pumping group.
18
Device Power Section (mm
1,5 2,5
Maximum distance (meters)
9 21
13 30
52 86
) Pump Power Section (mm
2
4 1,5
Maximum distance (meters)
38 8
54 12
142 49
)
2
2,5 4
20 36
28 51
81 134