Product description: PU series vertical box-type condension units have the following characteristics 1. The product adopts vertical box-type structure, fan side installation, effectively prevent dust, rain water and so on into the cabinet; 2. High air duct design, low noise, beautiful appearance； 3. The cover of the case adopts hinge structure, which is easy to maintain and operate; 4. Compressor uses Emerson ZB and ZFI series scroll compressor or Bitzer semi-hermetic compressor to meet the application of medium temperature and low temperature; 5. Adopt U-type condenser, it has large windward side, small wind resistance and good heat transfer effect; 6. It can meet the requirements of R22, R404A, R507A, R448A, R449A and other refrigerants.