4/11
4.4. Multi-way valve
Water inlet from
boiler
Drain to the drip tray
Functions:
Safety valve: opens towards the drain if the pressure exceeds 16-19 bar
Filling the circuit: the solenoid valve opens (drain position), the pump is controlled and automatically rells the
circuit by expelling the air in the pipe
Draining the unit: before the unit descends, it opens briey, releasing the pressure created to prevent the unit from
spraying and making the pad drier
Coee product: when a coee beverage is selected, the pump is charged briey during the grinding process and the
valve assumes the drain position for hot water to pass through the pipes.
Needle
Drain