27
English
Connect the power cord to the electrical mains as shown in the attached diagram:
L
3
L
2
L
1
N
L
N
L
3
L
2
L
1
5. 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.
5.1 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 support grill and make sure that:
a) The boilerdrain valve
21
is closed.
b) The taps of automatic level valve
22-24
must be open.
3) Open the water supply on-off valve
33
.
4) Open a steaming tap
5
to allow the exit of the air in the boiler filling phase.
5) Reinstall the tray and cup support grill in its place.
6) Press and hold down the button
10
until the sight glass
20
is ¾ full.
5.2 Heating the water in the boiler
1) Rotate the main switch to position 2.
2) Hold down a steam delivery lever
5
to allow air to escape from the system as the macchine heats up.
Release the lever as soon as steam escapes from the delivery pipe. Boiler pressure is indicated on the
0÷3 bar scale on the pressure gauge
14
(suggested value: 0.9÷1.2 bar).
6. Operating instructions
During the flow of espresso coffee, tea or steam, these substances can cause burns due to acci-
dental skin contact.
BLUE
BLACk
BROWN
BLACk
YE / GR
LEVA 2/3/4
NOTE:
* 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
230V MONO-PHASE* 400
V-3N THREE-PHASE
230V-3 THREE-PHASE
3 HEATING ELEMENTS
3 HEATING ELEMENTS
