Technical description
16
DRYPOINT® RA CT 20-500 NA
8.4 Refrigerating
compressor
The employed refrigerating compressors are constructed by leading manufacturers. The hermetically sealed
construction is absolutely gastight. The integrated safeguard protects the compressor against overheating and excess
current. The protection is automatically reset as soon as the nominal conditions are reached again.
8.5 Condenser
The condenser is the component in which the gas coming from the compressor is cooled down, condensed and
liquefied. Under no circumstances must the temperature of the ambient air exceed the nominal values. It is also
important that the condenser unit is kept free from dust and other impurities.
8.6 Filter
dryer
Despite controlled vacuuming, traces of moisture can accumulate in the refrigeration cycle. The filter dryer serves to
absorb this moisture and to bond it.
8.7 Capillary
tube
The capillary tube is a copper tube with a reduced diameter which is located between the condenser and the
evaporator, serving as a restrictor to reduce the pressure of the refrigerant. The pressure reduction serves to reach an
optimum temperature inside of the evaporator. The lower the outlet pressure at the capillary tube, the lower the
evaporation temperature.
The length and the inner diameter of the capillary tube are exactly dimensioned to ensure the performance of the
dryer. Settings or maintenance works are not required.
8.8
Aluminium heat exchanger
The heat exchanger module consists of an air/air heat exchanger, an air/refrigerant heat exchanger, and of a high-
performance separator. The compressed air flows top-down through the heat exchanger. The large cross-sections of
the flow passages cause low flow rates and low compressed-air losses. In the air/air heat exchanger, the heat
exchange is effected in a reverse current. This guarantees maximum heat transfer. The heat transfer in the
air/refrigerant heat exchanger also takes place in a reverse current. This allows full evaporation of the refrigerant. The
high-performance separator ensures almost complete separation of the condensate. Maintenance of the high-
performance separator is not required.
Summary of Contents for DRYPOINT RA CT 100-NA-EB
Page 39: ...Maintenance troubleshooting spare parts and dismantling DRYPOINT RA CT 20 500 NA 39 ...
Page 40: ...Maintenance troubleshooting spare parts and dismantling 40 DRYPOINT RA CT 20 500 NA ...
Page 43: ...Appendices DRYPOINT RA CT 20 500 NA 43 13 1 2 Dryer dimensions DRYPOINT RA CT 75 NA ...
Page 44: ...Appendices 44 DRYPOINT RA CT 20 500 NA 13 1 3 Dryer dimensions DRYPOINT RA CT 100 150 NA ...
Page 45: ...Appendices DRYPOINT RA CT 20 500 NA 45 13 1 4 Dryer dimensions DRYPOINT RA CT 200 250 NA ...
Page 46: ...Appendices 46 DRYPOINT RA CT 20 500 NA 13 1 5 Dryer dimensions DRYPOINT RA CT 300 350 NA ...
Page 47: ...Appendices DRYPOINT RA CT 20 500 NA 47 13 1 6 Dryer dimensions DRYPOINT RA CT 400 500 NA ...
Page 52: ...Appendices 52 DRYPOINT RA CT 20 500 NA 13 2 2 Exploded diagram DRYPOINT RA CT 20 30 NA ...
Page 53: ...Appendices DRYPOINT RA CT 20 500 NA 53 13 2 3 Exploded diagram DRYPOINT RA CT 50 NA ...
Page 54: ...Appendices 54 DRYPOINT RA CT 20 500 NA 13 2 4 Exploded diagram DRYPOINT RA CT 75 NA ...
Page 55: ...Appendices DRYPOINT RA CT 20 500 NA 55 13 2 5 Exploded diagram DRYPOINT RA CT 100 NA ...
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Page 57: ...Appendices DRYPOINT RA CT 20 500 NA 57 13 2 7 Exploded diagram DRYPOINT RA CT 200 250 NA ...
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Page 59: ...Appendices DRYPOINT RA CT 20 500 NA 59 13 2 9 Exploded diagram DRYPOINT RA CT 400 500 NA ...
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