Refrigerated Dryers works on Heat Transfer principle. Saturated compressed air enters the Pre-cooler Re-heater (air to air heat-exchanger), where it is pre-cooled by exchanging heat with the outgoing cold air, which reduces heat load to evaporator. The inlet air is further cooled in the evaporator (air to refrigerant heat exchanger) to the required dew point. The cold air is then reheated when it passes back through the air-to-air heat exchanger (precoolerreheater). A refrigerant compressor and condenser supply low-temperature refrigerant to the evaporator. The thermostatic expansion valve and the hot gas bypass valve match the operation of the refrigerant system to the compressed air cooling load. In the evaporator, heat is transferred from the compressed air into the refrigerant.

Refrigerated Dryers works on Heat Transfer principle. Saturated compressed air enters the Pre-cooler Re-heater (air to air heat-exchanger), where it is pre-cooled by exchanging heat with the outgoing cold air, which reduces heat load to evaporator. The inlet air is further cooled in the evaporator (air to refrigerant heat exchanger) to the required dew point. The cold air is then reheated when it passes back through the air-to-air heat exchanger (precoolerreheater). A refrigerant compressor and condenser supply low-temperature refrigerant to the evaporator. The thermostatic expansion valve and the hot gas bypass valve match the operation of the refrigerant system to the compressed air cooling load. In the evaporator, heat is transferred from the compressed air into the refrigerant.