27
• Connect the power cord to the electrical mains as shown in the attached diagram:
6. Operating
6.1 Filling the boiler
Checking the position of the taps in the water system
a) Remove the coffee ground collection tray with grille. Now, check for the following confi guration :
Boiler drain tap 21 closed
Tap on the automatic level control 24 open
Tap on the automatic level control 22 open
b) Install the coffee ground collection tray with grille
c) Open the main water fi ll tap 33
d) Open a steam delivery lever 5 to allow air to escape from the system as the boiler is fi lled.
Machine mod. 80– 12/16M - 2-3
a. Make sure that the main switch 1 is in position “zero”
b. Press and hold down the button 14 until the sight glass 17 is ¾ full.
6.2 Calibration of pump pressure
a. Once the boiler is fi lled, turn the main switch to position 2 (the heating elements start to heat the water).
b. Press the continuous-feeding push button 18 for the manual serving machines or the push button 10 for
the electronic machines with automatic serving, so that the water fl ows out of the unit corresponding to the
pressed button.
c. Read the water pressure value on the pressure gauge
38. The optimum pressure is 9 bar. The pressure is
adjusted to the desired value by oper ating on the pump
screw: the pressure is increased by turning clockwise;
it is decreased by turning counter clockwise. As shown
in the fi gure, there are three different cases for adjust-
ing this screw, depend ing on the pump installed on the
machine:
- adjust only the screw
- adjust the screw and lock it with the lock nut
- unscrew the cap nut and adjust the screw
.
MARRONE
MARRONE
230V MONOFASE 400V-3N TRIFASE
230V-3 TRIFASE
L
La potenza
assorbita delle
resistenze elettriche
può essere ridotta a
2/3 eliminando uno
dei due fili NERI.
2
L
NERO
L
1
GI / VE
L
3
NERO
BLU
GI / VE
LEVA 2/3/4
NOTE:
N
NERO
NERO
BLU
1
L
GI / VE
3 RESISTENZE
MARRONE
NERO
NERO
BLU
BLU
NERO
MARRONE
NERO
L
3
2
L
N
3 RESISTENZE
MARRONE
NERO
NERO
BLU
GI / VE
GI / VE
Note:
*The power
absorbed by electric
heating elements
can be reduced to
2/3 by eliminating
one of the black
wires.
PUMP SCREW
