1. Button safety protection system; safe operation and high reliability; using high-quality components from internationally renowned brands, following advanced design concepts, and perfectly combined to form a safe and reliable system. The system has high pressure, low pressure, oil flow monitoring, and oil temperature The protection system for control, oil level control, motor overload, overheating, reverse and missing items and other alarms ensures normal operation under high or low temperature metering conditions and is truly unattended.

2. The screw unit has superior performance, higher efficiency, and is energy-saving and efficient; the imported screw compressor is equipped with an economizer to operate. Under low-temperature conditions, the cooling capacity can be increased by more than 35%, and the refrigeration efficiency can be increased by more than 20% to form a multi-connected unit. It is then automatically adjusted by PLC. Compared with ordinary machines, it can save 20%-50% of electricity depending on different applications.

3. It saves space and is easy to install; most of the debugging of the refrigeration system and electrical system has been completed before the unit leaves the factory. On-site installation only requires simple construction before it can be put into use. The unit has a compact structure, reasonable design, and a small footprint. The required machine room area is only equivalent to 1/6 of the ammonia machine room.

4. Advanced PLC control can realize remote monitoring; the dedicated controller for parallel units used in the unit can realize remote control, and the operation of all equipment in the cold storage can be controlled in the office or control room.

5. Energy control is carried out in stages to save energy and electricity; according to the temperature requirements, the system pressure is sensed through the pressure sensor, and different numbers of compressors are automatically controlled to start and stop according to the pressure, so that they are always in the best and most economical working condition. Greatly save operating costs. Parallel units can determine the number and time of startup based on the heat load of the cold storage. When a large cooling capacity is needed, multiple machines operate together. When a small cooling capacity is needed, a single machine operates for long-term use with low energy consumption. If one of the machines is damaged, it will not affect the normal operation of other machines, increasing the safety and stability of the system.