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1904 0504 83
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AI  Air inlet 
AO  Air outlet 
1  Air/air heat exchanger 
2  Air/refrigerant heat exchanger/evaporator 
3  Condensate separator 
4  Automatic drain / condensate outlet 
5  Refrigerant compressor 
6  Refrigerant condenser 
7  Liquid refrigerant dryer/filter 
8  Capillary
9  Bypass valve 
10  Condenser cooling fan 
11  Pressure switch, fan control 
12  Liquid separator 
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Compressed air enters heat exchanger (1) and is cooled by the outgoing, cold, dried air. Water in the 
incoming air starts to condense. The air then flows through heat exchanger/evaporator (2),  where the 
refrigerant evaporates, causing the air to be cooled further to close to the evaporating temperature of 
the refrigerant. More water in the air condenses. The cold air then flows through separator (3) where all 
the condensate is separated from the air. The condensate is automatically drained through outlet (4).
The cold, dried air flows through heat exchanger (1) where it is warmed up by the incoming air.