Grinder Mechanism (Not Shown On Water Flow Diagram)
The grind mechanism consists of a 230V ac conical grinder with a manual
adjustment. When an espresso based drink is selected the grinder will run for
the required time, grinding beans and feeding the brewer. The grinder is fitted
with a manual adjusting mechanism which allows the engineer to vary the size
of the ground coffee in order to satisfy customers’ taste preferences.
CoEx® Brewer (Not Shown On Water Flow Diagram)
The brewer unit is capable of receiving between 5 and 9 grams of ground
coffee. Once the coffee has been ground and dispensed into the brewer unit,
the 24V dc brewer motor drives the brewer to the vend position using the
current sensing as control. Once the coffee has been compressed into a ‘cake’,
water is pumped through the brewer. When the required amount of water has
passed through the brewer, the now wet coffee ‘cake’ is squeezed, removing
most of the water from the ‘cake’, preventing the brewer becoming
unnecessarily dirty. After the ‘cake’ has been squeezed the brewer will deposit
the cake into the dry waste container and return to the stand-by position.
Technical Manual
85
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