Filling The Boiler With Water - La San Marco 20/20 CLASSIC Montageanweisung, Bedienung Und Wartung

Connect the power cable of the coffee machine to the power supply according to the attached diagram:
230V
20/20 CLASSIC
220-230-240V 1N
20/20 CLASSIC
MODELS
230V-3N THREE-PHASE
* The input power
of the heating
elements can be
reduced to 2/3
by eliminating
the BLACK wire
3.6 Connection to equipotential clamp
The machine is provided with an equipotential clamp placed under the tray and the bottom support
cup grid.
The terminal is identified by the equipotential symbol reported here on the side.
Connect only cables of 2.5 mm to 6 mm with eyelet terminal for M8 screws.
T
qualified personnel.
4. Start-up
qualified and authorized technical personnel.
espresso coffee machine with the following procedure in order to avoid damaging the appli-
ance.

4.1 Filling the boiler with water

Check that the machine main switch is in position 0 (zero).
1) Remove the cup support tray and grate and make sure that:
a) The boiler drain valve a is closed (figure 8).
b) The taps of the automatic level valve b-c must be open (figure 9).
c) The taps of the flow meters e must be open (figure 10).
38
BLUE
YE / GR
* 400V-3N THREE-PHASE
BLUE
BLACK
GREY
YE / GR
BLUE
BLACK
GREY
YE / GR
To make the connection remove the bottom tray. On the left side of the
frame, indicated by the equipotential symbol, there is the screw-clamp to
be used to connect a cable of 2.5 mm to 6 mm with ring lugs for screw M8.
BLUE
BLACK
GREY
GI / VE
1
BLUE
YE / GR
3
BLUE
BLACK
GREY
YE / GR
3
BLUE
BLACK
GREY
YE / GR