Hi guys, this is a quote from a document I am reading on a cascade system using co2 as the low temp refrigerant. " The evaporator in the R404 system is a plate heat exchanger, which acts as the condenser for the R744 cycle. It condenses the discharge gas from the R744 compressor serving the Low temp system and the flash gas from the WET SUCTION on the high temp R744 evaporator"
Could someone please explain what they mean by wet suction. Is it liquid that hasnt boiled off????
Thanks!