1. It can save electricity and is conducive to the work of the compressor, because at low temperatures, the compressor's lubricating oil is easy to thicken and become more viscous, which is not conducive to the start of the compressor, causing difficulty in starting, and easy damage to the compressor;
2. The single-system refrigerator with mechanical temperature control has a temperature probe in the cold storage area, which is connected to the temperature controller to control whether the compressor is working. The refrigerated area generally requires 0℃~10℃. If the indoor ambient temperature is close to or lower than 10℃, the temperature measured by the temperature probe will be lower than 10℃ for a long time, and the compressor will not work at this time. In order to solve this problem, the designer set up a "temperature compensation" switch for the single-system refrigerator, and placed a group of heating wires next to the probe, which will increase the temperature around the temperature probe and the compressor can work.
Your approach is wrong. The higher the gear, the more power it consumes. The higher the gear, the lower the temperature. The refrigeration can reach 0 degrees. To reach this temperature, the refrigerator must work for a longer period of time for refrigeration.







