Refrigerated Type Air Dryer is a skid mounted unit consisting of Freon chiller, air to air pre-cooler and a moisture separator. The Air Dryer is pre-cooled with outgoing chilled air to around 25 ° c and then it is cooled in a chiller to 2 ° c temperature. The Air Dryer has the feature that moisture condensed would start freezing on Freon tubes. The Refrigerated Type Air Dryer has 2 ° C pressure dew point and comes out at around 25 ° c temperature.