2.2 Air systemAir flow diagramAir flow diagramName Reference1 Heat exchanger2 Evaporator3 Water separator4 Refrigerant compressor5 Hot gas bypass valve6 Condenser7 Refrigerant dryer/filter8 Capillary9 Electronic condensate drain10 Liquid separator11 Cooling fanDm Manual drain valveDescriptionCompressed air enters heat exchanger (1) and is cooled by the outgoing cold, dried air. Water in the incomingair starts to condense. The air then flows through heat exchanger/evaporator (2) where the refrigerantevaporates, causing the air to be further cooled to close to the evaporating temperature of the refrigerant. Morewater in the air condenses. The cold air then flows through separator (3) where the condensate is separatedfrom the air.The separator is integrated in the heat exchanger/evaporator.The condensate collects in the Electronic Water Drain (EWD) and is automatically drained. The cold, driedair flows through heat exchanger (1), where it is warmed up by the incoming air to approx. 5 ˚C (9 ˚F) belowthe temperature of the incoming air.Instruction book2920 7103 90 13