AGT PSG MAK10 Installation Manual, Operating Manual, Maintenance Manual, Spare Part List page 39

Installation-, Operating-, Maintenance-Manual, Spare part List
Functional Characteristics of the Refrigerant Circuit
 Depending on operating condition, the refrigerant compressor 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. The fluid refrigerant is
passed through the refrigerant dryer to the flue damper.
 The fluid refrigerant is expanded by the flue damper from high pressure (condensation pressure) 1100kPa to low
pressure (evaporation pressure) 210kPa. This expanded and fluid refrigerant flows through the evaporator of the
heat-exchanger. By energy input of the heat-exchanger the fluid refrigerant evaporates and cools down the
passed through sample gas to a temperature of +3°C. Over the steam dome the refrigerant compressor
sucks again the vaporous refrigerant.
 Over the power regulator 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 pressure- and
temperature-controlled power regulator keeps the sample gas chilling temperature constant to +3°C.
 The temperature control unit monitors the ambient and the dew point temperature but it does not access the
power regulation. It provides an alarm at unacceptable exceeding or undercut of temperature as well as at
exceeding service intervals. It logs all malfunctions of the cooler.
AGT-PSG GmbH & Co.KG
Errors and printing mistakes excepted Translation - Manual MAK10 Rev. 11/2017
MAK10
Page 39