Coffee Cycle - Philips Saeco GranBaristo Service Manual

GRAN BARISTO
4.2.

Coffee cycle

Main switch ON
Time
Coffee grinder
Heating
Pump
Brewing unit gear
motor
Status
Notes: * Only with Pre-brewing
Status
Microswitch
When the machine is switched on, the gear motor repositions itself as follows:
- It acts on microswitch 1 (see following chapter).
- The gear motor changes its rotation direction and moves upwards again by approx. 1-2 mm.
- The boiler begins to heat the water for approx. 30 sec with controlled power, in order to reach
the optimal temperature. The temperature will then remain at a constant level.
1. The grinding process is controlled by time duration in function of coffee strength selected.
2. The gear motor (brewing unit) moves to the brewing position.
3. Preliminary dispensing phase (short pump activity, short pause).
4. Product dispensing (the pump operation period is defined by the amount of product dis-
pensed).
5. The gear motor moves to its home position (the dregs are expelled automatically).
START
approx.
45 sec.
Heating Ready
OFF
Single microswitch gear motor
Switching on
Coffee cycle
Pulses
(Dosage)
Pump operation (flow
accordance with the
amount of product
*
Coffee cycle
ON
04 OPERATING LOGIC
STOP
meter pulses) in
selected.
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