Astoria 2GR - I. SAFETY PRECAUTIONS; I.I. LEVEL OF TRAINING AND INFORMATION REQUIRED OF THE USER; I.II. OPERATION; ELECTRICAL HAZARD

TECHNICIANS' manual
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6.2.4 External motor pump adjustment
To adjust the operating pressure, proceed as follows:
• Press a coffee dispensing switch.
• Adjust the pressure by turning the screw located on the
pump (3) so as to obtain a value between 0.8 and 0.9 Mpa
(8 and 9 bar): tightening the screw increases the pressure,
and loosening it reduces the pressure. Check the pressure
by means of the pressure gauge (4) located on the front
of the machine.
• Switch off the dispensing switch.
3
4
6.2.5 Coffee grind
To adjust the coarseness of the ground coffee, use the appro-
priate regulator located on the grinder-dispenser hopper.
6.3 Lighting(iftted)
6.3.1 Dispensing compartment
To turn on and turn off the work compartment lighting, press
the switch, which is located under the command facade on
the left side.
6.3.2 Spouts
To turn the work compartment lighting on and off, press the
switch, which is located under the command facade on the
left side.
6.4 Cupwarmer(iftted)
Activate and adjust the temperature as shown in the mod-
el-specicusermanual.
6.5 Automatic steam wand (if applicable)
6.5.1 Adjusting the temperature
To program the temperature of the milk to be heated, enter
the machine programming through the display and set the
desired temperature.
However, we recommend that this does not exceed 60°C.
6.5.2 Adjusting the milk froth
To adjust the automatic steam wand milk frothing settings,
proceed as follows:
• Remove the left side panel from the machine (1).
• Turn the screw of the adjustment valve (2):
- To reduce the froth, turn it clockwise.
- To increase the froth, turn it anticlockwise.
• Reposition the side (1) on the machine.
1 2
6.6 Turning the machine on and off
During the machine's heating-up phase (which
varies depending on the model), the negative
pressure valve will release steam for a few sec-
onds until the valve closes.
If the machine is inactive for longer than a
week, the Technician must replace 100% of the
water inside the hydraulic circuits.
Before turning the machine on, proceed as follows:
• Open the water valve of the water mains and softener.
• Make sure that the level of water in the heating unit is
higher than the minimum level indicated on the water
level window (1).