Refrigerated air Dryer Dew Point is not Stable

[ramesh.beemani]

Hello
iam new to refrigeration , i have a question regarding the refrigeration air dryer. i have seen a refrigerated air dryer on which the dew point is not stable and the same time the compressor is swetting.

please advise

[Gideon Beddows]

The compressor will sweat if the suction temperature is below the dew point of the surrounding air. Not unusual.

Usually dewpoint control of the compressed air is pretty stable. What kind of unit is it? What refrigerant? Does it have a hot gas bypass valve for instance which you may need to adjust?