How to distinguish the quality of commercial refrigerator and freezer and is it normal?

How to distinguish the quality of commercial freezer from good or bad?

When we select a commercial freezer, we filter the appropriate freezer through various conditions. However, many people have no way to directly distinguish whether the quality of the freezer is good or bad, and the value is not worth buying.

First, the core of the commercial freezer is its compressor. A refrigerator needs refrigeration to run by compressor. Then the importance of the compressor can be imagined, so if the compressor is good, the quality of the commercial refrigerator is completely different. And we can see if it can turn into ice in a few seconds by dropping a few drops of water on the evaporator, which means the compressor is very good. Dongyang refrigerator adopts brand-name high-efficiency compressor, which has fast cooling, lower noise, and is safe and stable.

Second, the commercial refrigerator freezer foam layer, it is the freezer insulation layer, only it is good, in order to save the refrigerator inside the refrigerator, the refrigerator can be cooled, otherwise a cooling, cold air will run away, it is impossible to refrigerate good food. Therefore, its quality is also very important. If you want to identify a good foam layer, you should try it by hand. The good foaming is very solid and the weight is very solid, and the fresh-keeping effect and energy-saving effect are better. Dongyang refrigerator is made of polyurethane foam, which is not only high-strength, high-density, but also safe, energy-saving and beautiful.

Third, a very important part of the evaporator of the Commercial Upright Freezer, its quality determines the cooling speed and preservation quality of the freezer. The freezer adopts full air-cooling design, large copper tube with evaporation area, fast cooling and strong display effect. 1 Evaporator design: To design the evaporator, in addition to a given load, the evaporation temperature, superheat and liquid temperature before entering the expansion valve are given. 2 Cooling capacity: The cooling capacity directly determines the effective evaporation area of ​​the evaporator, that is, the number of fins, the size of the fins, and the length of the pipeline.

How to judge whether the commercial freezer is normal?

Carefully observe the working conditions of the various components of the commercial freezer, focusing on the three parts of the refrigeration system, electrical system, and wind system to determine whether they work properly.

1. Refrigeration system: Observe the cracks, damage, frost and condensation of the pipelines of the refrigeration system; whether there is any friction between the refrigeration pipelines, the pipelines and the casing, especially the refrigerant pipeline welding Where there is no leakage at the joint of the joint, there will be oil pollution at the leak (a certain amount of refrigeration oil in the refrigeration system), or clean the soft joints and soft paper to wipe the joint between the weld and the joint to observe the presence or absence of oil. To determine if a leak has occurred.

Second, the electrical system: Observe whether the fuse of the electrical system is blown, whether the insulation of the electrical wire is intact, whether the circuit board is broken or not, and whether the joint is loose or not. In particular, the electrical connection is in good contact, and the wiring screw and the connector are easily loosened to cause poor contact.

Third, ventilation system: Observe whether the air filter, heat exchanger coil and fins are excessively dusty; whether the air inlet and outlet are unblocked; whether the fan and fan blades are running normally; whether the wind is normal or not.