To satisfy the production refrigeration demands of wide coverage, high load and all-day operation, CN adopts an ammonia/CO₂ secondary refrigerant refrigeration system equipped with a full set of professional refrigeration system to guarantee efficient, stable and low-carbon system operation. The core equipment of the project includes:
* 16 sets of screw compressor units (12 two-stage units + 4 single-stage units);
* 12 sets of ammonia/CO₂heat exchange skid-mounted packages
* 9 sets of twin-spiral freezers and 130 air coolers.
* In addition, chilled water systems for processing air conditioning and defrosting waste heat recovery systems are constructed to fully match the full-process demands of factory processing, pre-cooling, quick-freezing and cold storage.

This system effectively solves long-standing industry pain points of traditional refrigeration systems,such as excessive ammonia charging volume, low intelligent control level, high risk of ammonia leakage and potential production suspension & rectification from leaks. After commissioning and formal operation, the system significantly cuts energy consumption and overall operating costs. It fully implements the philosophy of low carbon, energy conservation and environmental protection. Not only does it greatly upgrade the safety, stability and intelligence level of the factory’s refrigeration system, but it also helps the enterprise reduce costs, boost efficiency and achieve compliant production, establishing competitive advantages in the market.