Dometic FreshWell3000 Technical description
13
6.1 Components
The refrigerant circuit of the under-bench air conditioner consists of the
following main components (fig. 1, page 3):
z Compressor (1)
The compressor draws in the refrigerant used and compresses it. This
raises the pressure and therefore the temperature of the refrigerant.
z Condenser (2)
The built-in liquefier works like a cooler or heat exchanger. The air flow-
ing past absorbs the heat and the hot refrigerant gas cools down and
becomes liquid.
z Evaporator (3)
The evaporators cool down and dehumidify the air flowing past them.
The refrigerant absorbs the heat and vaporises.
z Blower (4)
A blower distributes the cooled or heated air within the vehicle through
an air outlet unit.
z 4-way valve (5)
The 4-way valve reverses the cooling circuit. Thus the internal register of
the evaporator becomes a condenser and heats the air passing through.
z Electric heating element (6)
The electric heating element increases the heating effect when the outer
temperature is low.
z Air inlet (7), air outlet (8) for external heat exchanger
Air is sucked into the device through the air inlet and escapes through
the air outlet.
z Air inlet (9), air outlet (10) for internal heat exchanger
Air is sucked into the device through the air inlet and escapes through
the air outlet. The internal heat exchanger treats the air in order to be
cold or hot depending on active mode.
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