COOLING CIRCUIT
HOW DOES IT WORK?:
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Refrigerant vapours are compressed in the compressor (5) from low
pressure (6 bar) to high pres-sure (18 bar), and sent into the D-tube
condenser (7), coiled round the hot-water tank, which is colder than the
refrigerant vapours. A condensation of the refrigerant vapours takes place
and the water in the tank is heated. The refrigerant is now a liquid and
passes through the dry filter (8), which will absorb and detain residual
moisture from the refrigerant, if any. In the heat exchanger (4) a further
transfer of heat is possible. The purpose of the expansion valve (3) is to
regulate the supply of liquid to the evaporator (2). A high-pressure
sensitive switch (6) secures the cooling circuit against an inadmissible
overpressure.
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