Installation-, Operating-, Maintenance-Manual, Spare Part List
BCR05
AGT-PSG GmbH & Co.KG
Errors and printing mistakes excepted
Page 32
Translation - Manual BCR05 Rev. 06/2017
Functional Characteristics of the Refrigerant Ciruit
Depending on operating condition, the refrigerant compressor 1 compresses the vaporous refrigerant from the
inlet pressure of approximately 210kPa (=2,1bar) to the condensation pressure of 800-1700kPa (=8-17bar).
The vaporous refrigerant is liquefied by cooling in the subsequent refrigerant condenser 2. The fluid refrigerant
is passed through the refrigerant dryer 3 to the flue damper 4.
The fluid refrigerant is expanded by the flue damper 4 from high pressure (condensation pressure) 1100kPa to
low pressure (evaporation pressure) 210kPa. This expanded and fluid refrigerant flows through the heat-
exchanger pipes 6 of the evaporator 5. By energy input of the exchangeable heat-exchanger 7 the fluid
refrigerant evaporates and cools down the passed through sample gas to a temperature of +3°C. Over the liquid
separator 10 the refrigerant compressor 1 sucks again the vaporous refrigerant.
Over the power regulator 9.0 the sample gas conditioner performs a self-adjustment to alternating gas flows,
inlet temperatures and dew points. With a by-pass from the pressure- to the suction-site the temperature- and
pressure-controlled power regulator 9.0 keeps the sample gas chilling temperature constant to +3°C. The
integrated thermometry 9.1 of the regulator does a precision adjustment to the temperature of the sample gas.
This prevents any alternation of dew points.
The temperature control unit 21.0 monitors the dew point temperature. It provides an alarm at unacceptable
exceeding or undercut of temperature.
