Alarms; Visual Alarms From Display; Acoustic Alarms From Buzzer Unit - Izzo Alex Valexia Duetto II Manuel D'utilisation Et De Maintenance

ADJUSTING THE PUMP:
The pump of the machine is adjusted and set at a value of
approximately 10 bar for the model that connects to mains water
and between 9-9.5 bar for the model that connects to the reservoir.
It is possible to change this value by raising the unit lever, reading the
pressure value on the pressure gauge 0-16 bar and adjusting the pump as
follows:
• Position the blind filter (supplied with the machine) in the filter holder,
having previously removed the filter present
• Lift the lever of the dispensing unit, and read the value on the 0-16 bar
pressure gauge.
• If the pressure is to be increased, turn the screw clockwise using a
screwdriver (fig. 5, tab. 2).
• If the pressure is to be decreased, turn the screw anticlockwise using a
screwdriver (fig. 5, tab. 2).

8 ALARMS

8.1 VISUAL ALARMS FROM DISPLAY

In the event of malfunction, the display (fig.1, tab. 1) shows the following alarm
messages:
• A1: channel 1 disconnected (coffee boiler)
• A2: short circuit on channel 1
• A3: channel 2 disconnected (steam boiler)
• A4: short circuit on channel 2
If the above malfunction occurs, contact technical support directly.

8.2 ACOUSTIC ALARMS FROM BUZZER UNIT

An alarm condition is signalled by an audible alarm. The buzzer will activate
automatically in one of the following cases; depending on how you choose
15