iagram1.Pre-cooler (Only for high temperature)2.Air-to-air heat exchanger3.Refrigerant evaporator 4.Automatic drain valve5.Expansion valve or capillary tube6.Dry filter7.Refrigerant compressor8.CondenserRemarks: The red color is moist air, the green color is dry air, the yellow is Refrigerant pipeline. Production ProcessFactory ShowPacking & DeliveryStandard exporting package in plywood cases.FAQQ1:Can you accept OEM orders?A1: Yes, with professional design team, OEM orders are highly welcome.