Models With Interna! Water Tank - Gaggia Ruby PRO User Manual

4.2.2 Models with interna! water tank

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Place the machine on the workbench and open the
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.
o
J t is recommended to use water with a hardness
between 5-8 dH ° (8-14 fH
and to obtain an optima/ quality of coffee and tea .
Connect the machine to the appropriate plug
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connection according to the curren! electrical
standards of the area.
o
You shou/d not use extension cords or out/et
adapters of any kind to connect the machine to
/he supply nelwork.
The mains connection cable should never be
rolled up; instead, it should be ful/y extended to
avoid possible overheating.
Place the filter holder in the group head, press the
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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
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installation of the grinder. Adjust the grinding
fineness and doses.
Once the machine has reached working temperature
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and we have adjusted the grinder, we can program
the coffee doses (see section 4.3, pg. 9)
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° ) to avoid calcífication
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The interna! water tank models drain the residual
water in the drainage tray without an externa!
connection to a drainage system. For this reason,
they have a level indicator.
Check the leve/ indicator and empty the drainage
tray, i f necessary.
Press the main power switch.
•
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.
l f the control box does not detect an adequate
water leve! in the boiler within 4 minutes, the
one-coffee and lwo-coffee LEO keys will blink,
indicating a water leve/ warning. In
semiautomatic machines, the Boiler Water
Leve/ indicator will blink. This warning can be
cancelled by turning the machine off and on
again.
The water tank versions have an "Espresso
Priority System" that allows coffee to be made
only at an optima/ temperature and to prioritize
coffee preparation over other machine
functions.
Level lndicator