Astoria 1GR Use And Maintenance Manual page 28

The water mains must supply cold water fit for
human consumption (potable water) at a pres-
sure between 0.15-0.6 Mpa (1.5 and 6 bar). If the
pressure is higher than 0.6 MPa (6 bar), connect a pressure
reducer before the pump.
All the filling couplings are 3/8 male gas types. The drain
tray is connected to a pipe with an internal diameter of
20 mm.
If an external tank is used, the connection pipe between
the machine and the tank must not exceed 150 cm.
The machines are fitted with a "Timeout" device which
allows the heating unit to be filled up with water within
a maximum time. This function prevents water from
flowing out of the heating unit's valve (flooding) and
keeps the motor pump from overheating.
FOR THE EUROPEAN COMMUNITY: when con-
necting to a water mains or an external tank, a
non-return valve (16) must be positioned up-
stream from the machine, as set forth by the EN 1717
standard.
FOR THE USA - The water connections and
drains must be made in accordance with the
2003 International Plumbing Code of the Inter-
national Code Council (ICC), or the 2003 Uniformed Hy-
draulic Code of the IAPMO. The machine must be in-
stalled with a suitable non-return valve as set forth by
the national standards.
16
30 108
of
5.7.4 Electrical connection
• The conformity of the electrical system, effectiveness of
the earthing system and functionality of the differential
circuit breaker - all of which are fundamental for guaran-
teeing the appliance's electrical safety - are the responsi-
bility of the person in charge of the electrical system on
which the equipment is installed.
• Before installation, make sure that the
electrical system is equipped with the
protection device (8), as indicated in the
safety notes on page 30.
• To connect the machine to the electric mains, refer to
Chap. "13. WIRING DIAGRAMS" on page 59.
• Do not use extension leads or electrical adapters for mul-
tiple outlets.
• The access spaces to the machine and main switch must
be left clear, in order to allow the user to intervene without
any constrictions and leave the area immediately when
needed.
If an external motor pump is being used, proceed as follows:
• Connect the motor pump cable (with the smaller cross-
section) to the connector of the external motor as shown
in the diagram below.
• Connect the machine power cable (with the larger cross-
section) as indicated in Chap. "13. WIRING DIAGRAMS"
on page 59.
B
C
M
GV
B
Blue
C
Motor pump power cable
GV
Yellow-green
M
Brown
MP
Motor pump terminal
Every electrical connection operation must be
carried out with the mains off and the power
supply disconnected. The Technician must also
check that there is no voltage present, by using a multi-
meter, for example.
8
MP
B
M
GV
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