Cooling rang is wide: 10KW~750KW Cooled method is selective: water cooled or aired cooled Refrigerant: R22, R134a, R404a, R407c Compressor is selective: srew type or piston type Quantity of compressor: single or multiple Energy regulation is selective: step or stepless Anti-corrosive ability is strong: water cooled condensing copper tube is HAL77-2 or B10, B30, air cooled condenser is copper tube copper fin Protection function is strong: Freon high and low pressre protection, water pressure protection, antifreezing protection, low flow protection, lack phase, superheat, oil pressure etc. protection Automaticity is high: it could carry out the person and unit talking function through PLC Certificates are complete: CCS, ABS, DNV, LR, BV etc. certificates.