Coffee Cycle - Gaggia Accademia Service Manual

ACCADEMIA
4.4.

Coffee cycle

Main Switch
ON
Time
Coffee grinder
Heating
Pump
Gearmotor
Brewing unit
Status
Notes: * Only with Pre-brewing
MicroSwitch
Status
When the machine is switched on, the gearmotor repositions itself as follows:
- It stresses microswitch 1 (see the following chapter)
- The gearmotor changes the rotation direction and moves upwards again by approx. 1-2 mm
- The boiler begins to heat the water for approx. 45 sec. at full power in order to
reach the optimal temperature. The temperature will then remain constant.
1. The coffee grinder starts the grinding process (controlled by pulses generated by a sensor)
2. The gearmotor (coffee unit) moves to the dispensing position
3. Preliminary dispensing phase (short pump activity, short pause)
4. The product is dispensed (the pump operation time depends on the amount of product
dispensed)
5. The gearmotor moves to the idle position (the dregs are expelled automatically)
GAGGIA
START
approx.45 sec.
Heating Ready
OFF
Single microswitch gearmotor
Switching on
Coffee cycle
Rev. 00 / March 2010
Pulses
(Dosage)
*
Coffee cycle
ON
04 OPERATING LOGIC
STOP
Pump action
depending on
the quantity of the
product set
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