La Marzocco Strada, Руководство пользователя

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Glossary
autofill system
The components responsible for maintaining the correct level of water in the steam boiler.
These include the autofill solenoid, autofill probe, and control box.
ball valve, steam
the valve used to shut-off the flow of steam from the steam tank to the steam valve assembly
and wand. The ball valve allows the technician to shut-off the flow of steam and perform
service to the steam wand assembly even when the espresso machine is “live”.
basket, portafilter
the semi-permeable filter located in the portafilter that allows espresso to flow while holding
back coffee grounds from entering the espresso.
Brain
the microprocessor unit on automatic or AV espresso machines that controls the volume of
water used to brew an espresso. It is programmed using the menu pad.
burrs, grinding
the sharp ceramic or steel plates that actually grind coffee to the desired coarseness. Espresso
grinding mills come in two shapes: flat and conical.
button, continuous flow
The button on the menu pad that allows the operator to activate a continuous flow of water
and then deactivate the flow when the desired level is reached.
check valve
A one-way valve that prevents hot water from back flowing from the steam and coffee boiler
into the water supply lines.
diffuser screen
located at the group, the diffusor screen spreads the flow of water evenly over the espresso in
the portafilter insert. When water flows into portfilter basket, the coffee expands and back
pressure is created between the expanding coffee and the diffusor screen.
dose weight
the weight of coffee dispensed by the grinder into the portafilter. Typically a “dose” is set to 7
grams.
element, heating
The resistive coil inside the boiler that provides heat when electricity is run through it.
Elements are located in both the coffee and steam vessels. Flowmeter The complete assembly
of impeller, field, and body that measures the water required for pre-programmed shots.