ELEKTRA Microcasa User Manual download pdf (Page 6)

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9.BACKGROUND INFORMATION

The Elektra Micro casa semiauto-

matica operates like a commercial

espresso machine. When the

coffee brewing pushbutton

is pressed, water is pumped from

the water tank so it passes

through a tube inside the boiler

(called a heat exchanger).

The hot water in the boiler heats

the water passing through the

heat exchanger to the correct

temperature, where it goes into

the group head and through the

coffee grounds into the cup.

That is, the hot water passing

through the coffee grounds does

not come from the boiler.

The boiler is filled from the water

in the water tank, which is done

by pressing the boiler water

supply pushbutton to operate

the pump.

This machine allows the user

to extract coffee and froth/heat

milk at the same time.

Operating

principles

Weekly

With commercial espresso

machine cleaning chemical

•

Put three teaspoons

of cleaning chemical into half

a litre of very hot water.

Place coffee baskets and

handle into the solution

to soak for 20 to 30 minutes.

Ensure that the bakelite part

of the handle is not immersed

in the solution.

Rinse and wash all parts with

warm soapy water.

Rinse thoroughly in hot water.

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8.MAINTENANCE AND CLEANING

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The group head

The coffee handle fits into

the group head, with water

flowing through a “shower

screen”, as below. If the basket

is too full, the grounds will press

against the shower screen,

stopping the handle from being

fitted to the group head.

The coffee handle has two lugs

either side that locate into two

slots in the group head.

The handle is fitted by aligning

the lugs and slots, then pushing

the handle up so it can be twisted

to the right.

When the coffee handle is fitted

into the group head, a rubber ring

inside the group head seals

against the top of the filter basket.

It’s therefore important to make

sure the top of the filter basket

is clean and free of coffee

grounds.

Coffee handle and group head.

Water passes through the shower screen

to give an even flow of water through

the coffee grounds.

locating lug

shower screen

Otherwise leakage can occur,

and in some cases the rubber seal

can become dislodged due

to a build-up of coffee grounds

behind the seal.

9.BACKGROUND INFORMATION

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