Multi-Way Valve - Philips Saeco Exprelia Series Service Manual

EXPRELIA 04 OPERATING LOGIC
4.3.

Multi-way valve

Drain to drip tray
Needle
Drain
Functions:
Safety valve: functions as a safety valve by opening towards the drain in the event that the pressure rises above
16-19 bar
Filling the circuit: the solenoid valve opens (drain position) and the pump is activated, automatically refilling the
circuit by expelling the air in the pipe
Unit discharge: before the unit descends it opens briefly, discharging the pressure created to prevent spraying and
making the pad drier
Coffee beverage: when a coffee beverage is selected, the pump is charged briefly during the grinding process and
the valve assumes the drain position in order to fill the pipes with hot water.
Saeco International Group Rev. 00 / June 2010 Page / 11
04