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3.2
Hydraulic connection
1.
Remove the grids and drain pad (17);
2.
remove the protection under the pad (18);
3.
connect the water supply (12) to the water purification
filter inlet (10) using the provided flexible hose;
4.
connect the water filter outlet (11) to the external
motor pump inlet (13);
5.
connect the outlet of the motor pump (14) to the
inlet of the machine (7);
6.
connect the drain pad of the machine (6) to the
sewer discharge (5) using the special hose provided,
avoiding overly tight bends or kinks, and making sure
that there is sufficient inclination for water to drain.
i
Before install the machine please open the valve
of each flow meter (19).
19
Warnings
1.
The water supply must provide cold water for
human consumption (potable water) at a pressure
between 1,5 and 5 bars If the pressure is higher than
5 bar, connect a pressure reducer before the pump.
2.
add a tap (15) to the water supply so as to stop
water from flowing to the machine;
3.
in order to prevent damage, it is advisable to
install the water purification filter where it will be
protected from accidental blows;
4.
to prevent water from freezing, install the water
purification filter inside a premise with a room
temperature higher than 5°C;
5.
if there is no water purification filter, connect the
water supply (12) directly to the inlet of the external
motor pump (13);
Technical manual
6.
if there is an internal motor pump, connect the
outlet of the softener (11) (if there is one) or the
water supply (12) directly to the machine inlet (7);
7.
when connecting the pad of the machine to the
sewer drain, avoid overly tight curves or kinks, and
make sure that there is sufficient inclination for
water to flow out of the drain.
8.
the drain must be connected to an inspectionable
syphon that can be periodically cleaned in order to
avoid the return of bad odours;
9.
to avoid oxidization and damage to the machine
over time, do not use iron connections for the
hydraulic system, even if galvanized.
i
All filling connections are 3/8 male gas type.
The drain pan is connected to a tube with an
internal diameter of 16 mm.
In all machines equipped with automatic water
filling, there is an automatic time control device
18
which allows the boiler to be filled with water
within a maximum period of time. This function
i
keeps water from coming out of the valve of the
boiler (flooding) and keeps the motor pump
from overheating. If the maximum time is
not enough for the boiler to fill up completely
17
(machines installed with 3 or 4 groups), turn
the machine off and then back on, and repeat
the operations shown above.
The water supply of the appliance must be
carried out with water which is suitable for
human consumption, in compliance with the
!
regulations in force in the place of installation.
The installer must receive, from the owner/
manager of the system, confirmation that the
water meets the above listed requirements.
In case of supply from the tank, do not use
carbonated water or other liquids.
The hydraulic connection must be made in
compliance with local national standards.
On lever machines, the hydraulic connection
should be made only to the water supply with
!
a minimum pressure of 1.5 bar. If an external
tank is used, the connection pipe between the
machine and the tank must not exceed 150 cm.
For the European Community: for the hydraulic
connection to the water mains and also for
connection to an external tank, it is necessary
to place a non-return valve (16) up the line from
the machine as set forth by standards EN 1717.
17
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