Iberital Expression Pro Manual De Instalación Y Funcionamiento página 65

d) Machines with two boilers: Set the machine switch (12) to position 1 and wait until the automatic
level control completes the fi lling of the steam/hot water boiler with water. The coff ee boiler will fi ll
thanks to the mains pressure (it is recommended that the non-stop coff ee buttons (4) are pressed
until water comes out of the groups).
e) Set switch (12) to position 2 and the heating elements will begin to heat the water in the boiler. (Only
necessary on models with 3-position main switch. On models with 2-position main switches, the
machine will begin to heat when the level sensor is covered with water).
Wait until the working pressure is reached. The green indicator light (14) will go out. The boiler pressure gauge
will indicate the desired working pressure (0.08 - 0.1 MPa). In the case of the Iberital Expression Pro machine, the
desired working pressure is (0.1-0.12 MPa).
2.2.2. Portable coff ee machines
a) Fill the water deposit with 3 litres of water.
b) Connect the machine to the power supply.
c) Set the switch (12) to position 1. The red indicator light (13) will come on. This is followed by the
automatic fi lling of the boiler.
d) Set the switch (12) to position 2. The green indicator light (14) will come on.
Wait about 10 minutes until the working pressure is reached, as indicated by the green range on the gauge (10, 11).
The green indicator light (13) will go out.
General warnings: It is recommended that, once the working temperature has been reached, water is made to fl ow
through the groups for a moment in order to induce the thermosyphon current, thus enabling the system to reach the
ideal temperature to begin working.
It is also of the utmost importance that the fi lter holder structures are fi tted to the groups, so that the metal on the
fi lter holders also reaches the necessary temperature to dispense correctly the fi rst coff ees.
When turning on the main switch, it must be put into position 1 before moving on to position 2.
While there is no pressure in the machine boiler or, similarly, if it is not yet hot, do not press the hot water button. If it
were pressed, cold water would be obtained.
2.3.- DOSAGE OPERATION
It is important to remember that the buttons and control units receive signals in the two main switch supply
positions on the machine.
In the fi rst position, the switch will only operate the automatic
water fi lling, but not the heating elements.
In the second position, the switch receives a signal from the
starter relay (optional) and this allows the machine to be heated
and dispense coff ee. It is recommended that this be done when
the machine is hot and the working pressure in the boiler(s) has
been reached, as indicated by the green range on the gauge
(11), and/or shown on the display, if the machine has one.
NOTE: If our model only has a 2-position main switch (ON-OFF), when it is switched on the boiler will begin to
fi ll, if not already full. When the machine detects that the minimum level of water has been reached, it will begin
to heat the water to make the coff ee.
2.3.1. Programming dose on the control unit (not available on semi-automatic versions)
In order to program the dose you must press the 'non-stop' button on the left button pad (group 1) for 5 seconds,
and the non-stop coff ee LED will come on (*).
NOTE: If you have already entered programming mode and do not press any button to indicate a dose within 30
seconds, the button pad will go to stand-by position.
INSTALLATION AND OPERATION MANUAL
IBERITAL
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Page 65