Gaggia Ruby Operating Instructions Manual page 22

4.2.2 Models with internal water tank
Place the machine on the workbench and open the
1
top lid to access the water tank. Fill it with water
without removing it from its housing and ensure that
the filling and suction tubes remain at the bottom.
Lastly, close the lid.
It is recommended to use water with a hardness
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between 5-8 dHº (8-14 fHº) to avoid calcification
and to obtain an optimal quality of coffee and tea.
Connect the machine to the appropriate plug
3
connection according to the current electrical
standards of the area.
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You should not use extension cords or outlet
adapters of any kind to connect the machine to
the supply network.
The mains connection cable should never be
rolled up; instead, it should be fully extended to
avoid possible overheating.
Place the filter holder in the group head, press the
5
continuous coffee button key to purge the group,
and let water flow out for 30 seconds. Then wait
approximately 9 minutes until the machine is at
normal working temperature, observing whether the
gauge indicates a pressure of 1 bar.
While the machine is heating, proceed with the
6
installation of the grinder. Adjust the grinding
fineness and doses.
Once the machine has reached working temperature
7
and we have adjusted the grinder, we can program
the coffee doses (see section 4.3, pg. 9)
The internal water tank models drain the residual
2
water in the drainage tray without an external
connection to a drainage system. For this reason,
they have a level indicator.
Check the level indicator and empty the drainage
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tray, if necessary.
Press the main power switch.
4
At start-up the electronic control box detects that
there is no water in the boiler and activates the filling
valve and the pump. These remain active until the
level probe detects a correct water level. During the
initial filling of the boiler, it might be necessary to re-fill
the water tank several times. As soon as the probe
detects a correct water level, the boiler element will
switch on, heating the entire system.
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If the control box does not detect an adequate
water level in the boiler within 4 minutes, the
one-coffee and two-coffee LED keys will blink,
indicating a water level warning. In
semiautomatic machines, the Boiler Water
Level indicator will blink. This warning can be
cancelled by turning the machine off and on
again.
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water tank
The
Priority System" that allows coffee to be made
only at an optimal temperature and to prioritize
coffee preparation over other machine
functions.
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19
Level Indicator
versions have an "Espresso