Wega 1 Group, Use And Maintenance Manual

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espresso coffee machine - instructions for technician
20
R
English
14. ELECTRONIC CONTROL UNIT
The electronic control unit is installed on machines with volumetric dosing. Its pur-
pose is to control the dose of coffee electronically by means of the water flowing
through the dosing device and to check filling of the water entry in the boiler.
This control unit is set up to be connected to the delivery accounting systems by
means of a specific interface device.
15.1 EVD PUSH BUTTON PANEL
The push button panel is connected to the control unit which allows selection and pro-
gramming of the doses of coffee.
Programming is carried out in the following way:
• Place the programming lever
(1) in the ON position. It is located under the front
right-hand panel of the body;
• put the coffee cup under the dispensing spout.
• press the PROG/STOP key
(2) and all dose key LED will come on;
• press the desired dose key (3) ;
• when the desired dose has been attained, confirm by pressing the PROG/STOP key (2) ;
• Repeat this operation for the other dose keys.
• upon completion of programming, place the programming lever
(1) back in the OFF
position.
1
In some models, the programming lever has been eliminated because to access program, and it is enough to press the PROG/STOP key for
at least 5 seconds with all push button panel LED coming on. Also, confirmation of the dose can be given by pressing either the PROG/STOP
key or the selected dose key.
In other models to access programming it is necessary to use a special key switch.
To exit programming it is sufficient to wait a few seconds.
NOTE
The programming of every dose must be done with ground coffee and not with previously used grounds.
With machines having two or three groups, by fi rst programming the right-hand push buttons the others are automatically
programmed. It is however both possible and advisable to program the push button panels independently, always starting
from the right-hand push button panel.
15. ELECTRONIC PUSH BUTTON PANELS
3
2
3
2
STOP
PROG
3
2