The compressor sucks the gaseous refrigerant from the evaporator, this fluid is under low pressure, approximately 9 psi for R134a fluid coolers, and low temperature, for example 2 ° C.
The compression process occurs and the fluid undergoes an increase in pressure and temperature, reaching approximately 135psig and 90 ° C. The fluid is discharged through the discharge tube towards the condenser giving sensible heat to the external environment thus decreasing its temperature.