31
Instruction book
9096 3321 00
Refrigerant circuit
Compressor (5) delivers hot, high-pressure refrigerant gas which flows through condenser (6) where most
of the refrigerant condenses.
The liquid refrigerant flows through liquid refrigerant dryer/filter (7) to thermostatic expansion valve (8).
The refrigerant leaves the thermostatic expansion valve at evaporating pressure.
The refrigerant enters evaporator (2) where it withdraws heat from the compressed air by further
evaporation at constant pressure. The heated refrigerant leaves the evaporator and is sucked in by the
compressor (5).
By-pass valve (9) regulates the refrigerant flow. Fan (10) is switched on or off by switch (11) depending on
the loading degree of the refrigerant circuit.
The refrigerant compressor motor has a built-in thermic protection. If the motor stops after
tripping of the thermic protection, it may take up to 2 hours for the motor windings to cool
down and before the motor can restart.
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