Saeco ODEA, Service Manual

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Saeco Intrnational Group Page 3 / 14
TALEA / ODEA - LINE 04 FUNCTIONAL PRINCIPLES
Brewing unit pressure reduction:
Before the brewing unit moves to the home
position after a brewing process, the electric
valve opens and the overpressure in the brew-
ing chamber is released and escapes into the
residual water tray.
Silikonschlauch
Wasserauslaufstutzen
Pin
3-5 bar coffee dispensing valve
Release valve
16-19 bar safety valve
4.2. Solenoid valve / multi-way valve
Silikonschlauch
Wasserauslaufstutzen
Pin
3-5 bar coffee dispensing valve
Release valve
16-19 bar safety valve
Ventilation:
After the appliance is switched on, the electric
valve opens, the pump is activated and the
appliance is ventilated automatically.
Preheating the pipes:
If the coffee machine has not been used for
a while or after each heating-up phase, the
pump is activated during the grinding process.
The hot water enters via the pipes, the multi-
way valve, and the water channel into the
residual water tray.
When coffee is dispensed:
The same applies for when coffee is dispensed,
only the brewing unit is positioned in the
brewing position and is docked to the pin.
Silikonschlauch
Wasserauslaufstutzen
Pin
3-5 bar coffee dispensing valve
Release valve
16-19 bar safety valve
from boiler
from boiler
to residual
water tray
to residual
water tray
to hot water /
steam valve
to hot water /
steam valve
from boiler
to residual
water tray
to hot water /
steam valve
18-20 bar safety valve
18-20 bar safety valve
18-20 bar safety valve