1. Using multiple compressors in parallel, you can choose the system cooling capacity configuration to achieve the best configuration. 2. Multiple compressors are connected in parallel for centralized cooling. When one of the compressors fails, it will not affect the operation of the entire system, the temperature of the cold storage will not fluctuate, and the faulty compressor can be disassembled for maintenance.3. In the case of only opening part of the cold storage, the system can centrally refrigerate the opened cold storage under automatic operation, which can greatly shorten the pre-cooling time, ensure the freshness of the fruit, and prolong the preservation time.4. When only part of the cold storage is opened, the system can automatically control the start and stop of the compressor according to the load situation in the automatic running state, saving energy. You can also manually turn off some compressors to stop working.5. The system will automatically accumulate the compressor running time and run alternately to prevent compressor wear and prolong the compressor life. 6. When part of the compressors is working, the condenser has a large residual surface area, which can improve the heat exchange effect, reduce the condensing pressure, and improve the working efficiency of the unit.7. The microcomputer control system makes centralized control possible, which can realize remote fault telephone alarm, and realize unattended operation.It can be widely used in commerce, medical, tourism, service industry, food industry, experimental condensation, pharmaceutical and chemical industry.