La San Marco NEW 105 3, Use And Maintenance

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3.6 Connection to the 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 ring lugs for screw M8
The connection to the equipotential clamp must be performed by LA SAN MARCO SPA authori-
zed qualified personnel.
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.
4. Start-up
• The coffee machine must be started by qualified technical personnel approved by La
San Marco.
• Once the electric and hydraulic connections are completed, the user is urged to start
the espresso coffee machine with the following procedure in order to avoid damaging
the appliance.
4.1 Charging the water in the boiler
1) Check that the machine main switch
1
(figure 1) is in position 0 (zero).
2) Remove the tray and the cup holding grill 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 8).
d) The taps for the volumetric counters
e
must be open (figure 10).
Figure 8 Figure 9 Figure 10
3 HeATINg eLeMeNTS
3 HeATINg eLeMeNTS
230V MONO-PHASe* 400V-3N TRI-PHASe
230V-3 TRI-PHASe
bLUe
bLACK
bROWN
bLACK
Ye/gR
ReMAININg
MODeLS
NOTeS:
* The power absorbed
by the electric
heating elements
can be reduced to
2/3 by eliminating
one of the black
wires.
bLUe
bLACK
bLACK
bROWN
Ye/gR
bLUe
bLACK
bLACK
bROWN
Ye/gR
bLUe
bLACK
bLACK
bROWN
Ye/gR
bLUe
bLACK
bLACK
bROWN
Ye/gR
a b
d
e
f
c