AEG OEKOS2942-1KG Instruction Booklet - Page 27

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Technical terms

Refrigerant

Liquids which are able to produce a cooling effect are called refriger-

ants. Their boiling point is relatively low; it is sufﬁciently low for the

heat contained in foods stored in the refrigerating appliance to cause

the refrigerant to boil and therefore evaporate.

Cooling circuit

The closed circuit system which contains the refrigerant. The cooling

circuit consists principally of the evaporator, compressor, condenser

and pipes.

Evaporator

In the evaporator, the refrigerant evaporates. Like all liquids, in order

to be able to evaporate, the refrigerant needs heat. This heat is taken

from the compartment inside the appliance which, as a result, gets

cooler. For this reason, the evaporator is located inside the appliance

or is encased in insulating material immediately behind the internal

wall, and is therefore not visible.

Compressor

The compressor looks like a small barrel. It is operated by a built-in

electric motor and is ﬁtted in the base at the back of the appliance.

The compressor's function is to extract the refrigerant in the form of

vapour from the evaporator, to compress it and to carry it to the con-

denser.

Condenser

The condenser is normally in the form of a grille. It liqueﬁes the refrig-

erant after it has been compressed in the compressor. During this

process, heat is released which, through the surface of the condens-

er, is dispersed into the surrounding atmosphere. For this reason, the

condenser is normally located on the back of the appliance.