Reason: When the ambient temperature is high in summer, it should be used in the weak gear (gear 2 and gear 3), which will shorten the start-up time of the refrigerator, reduce the wear of the compressor and prolong the service life. When the ambient temperature is low in winter, if the thermostat is still set at the weak gear, the temperature difference between the inside and outside is small, the compressor is not easy to start, and the refrigerator with single refrigeration system may freeze in the freezer, so the strong gear 4 and 5 should be used.
Extended data:
How to use the refrigerator thermostat In the process of using the refrigerator, its working time and power consumption are greatly affected by the ambient temperature, so we need to choose different gears to use in different seasons. Refrigerator thermostat should be turned on at low level in summer and at high level in winter. When the ambient temperature is high in summer, it should be used in weak gear 2 and 3, and when the ambient temperature is low in winter, it should be used in strong gear 4 and 5.
Cause: The ambient temperature is high in summer (up to 30℃). If the temperature in the freezer is in a strong range (4, 5), the heat dissipation through the box insulation layer and door seal will be accelerated, resulting in long startup time and short shutdown time, which will lead to the compressor running at high temperature for a long time, not only consuming electricity but also easily damaging the compressor. If you change to the weak gear (2nd gear and 3rd gear) at this time, the current start-up time of the refrigerator will be obviously shortened, the wear of the compressor will be reduced, and the service life will be prolonged. Therefore, when it is hot in summer, the temperature control will be adjusted to a weak level.
When the ambient temperature is low in winter, if the thermostat is still set at a weak position and the temperature difference between inside and outside is small, it will be difficult for the compressor to start, and the refrigerator with single refrigeration system may be frozen in the freezing room.
The correct setting temperature of refrigerator freezer is 5-7 degrees, which can not only ensure the fresh-keeping effect of food, but also avoid the waste of resources caused by low temperature setting.
References:
Baidu encyclopedia? refrigerator