Nowadays, freezers are widely used, and they are also one of the essential appliances in every family. Freezers are widely used, but people know little about them and even go into misunderstandings, thus encountering many problems during use. Below, Gemei Freezer collects and summarizes common questions and answers about freezers for everyone:
1. Freezers Why do I have to leave it for more than two hours after delivery before I can turn on the power and test the machine?
Answer: The refrigeration system of the freezer is filled with a certain amount of special lubricating oil and refrigerant. During transportation, the freezer experiences tilting, bumps, etc., which will cause the lubricating oil in the freezer to flow along. The pipes flow into the coils of the heat exchanger or into the compressor cylinder. If it is turned on at this time, it will affect the operation of the compressor at least, and it will cause liquid shock to completely damage the cylinder, thereby paralyzing the refrigeration system of the freezer. The purpose of leaving the freezer for more than two hours after delivery before turning on the power for test runs is to prevent the compressor from being forced to start due to lack of oil, causing cylinder burning, shaft holding, and cylinder suction of return oil, causing liquid shock damage to the compressor.
2. What issues should be paid attention to when placing the freezer?
Answer: The freezer should be placed in a ventilated and dry room. The floor should be stable, with space reserved around it for heat dissipation and away from heat sources.
3. What is an air-cooled freezer or a direct-cooling freezer?
Answer: The biggest difference between the two is that one is frost-free (automatic defrost) and the other is frost-free (regular manual defrost); the direct-cooling freezer consumes less power, has low noise, and is cheap. Low temperature, refrigerated food preservation is good; air-cooled freezer has fast freezing speed, no frost, good food preservation and temperature uniformity, but it consumes a lot of power, is noisy, and is expensive.
4. Why are air-cooled freezers more expensive than direct-cooling freezers with the same specifications?
Answer: Because the structure of air-cooled freezers is complex and the technical cost is higher than that of direct-cooling freezers, the price is relatively higher.
5. What is the difference between a fluorine-containing freezer and a fluorine-free freezer?
Answer: There is no difference in appearance. Fluorine-free freezers are safer and more environmentally friendly than fluorine-containing freezers. Earlier freezers used foam or refrigerant containing Freon, which would cause certain damage to the atmospheric ozone layer after being emitted. Therefore, in order to respond to environmental protection and comply with market demand, freezer manufacturers now produce foam freezers. Or refrigerants, discard fluorine-containing refrigerants.
6. Why do freezers of the same size now have very different capacities?
Answer: Mainly because the thickness of the insulation layer such as the foam layer inside the freezer is different, so the effective volume of the freezer is also different.
7. How to judge the performance of freezer compressor and refrigeration system?
Answer: Adjust the freezer thermostat to the middle point, close the cabinet door tightly, and after the compressor works for a period of time, it will enter the thermostat control state, that is, the compressor will start and stop when it appears. The shorter the startup time, the greater the cooling capacity, the faster the cooling speed, and the higher the cooling efficiency.
8. What is the power-off delay protection of a freezer?
Answer: When the voltage is unstable or there is a sudden power outage, it can ensure that the freezer is protected from damage caused by voltage shock. After a sudden power-on, it will delay entering the working state for 2-5 minutes to ensure the long service life of the freezer.
9. What is automatic low temperature compensation?
Answer: It is a set of low-temperature compensation or switching devices specially designed by the freezer manufacturer to ensure that the freezer can work normally when the ambient temperature is low in winter; when the ambient temperature is too low, this function can be automatically guaranteed Sufficient refrigeration capacity prevents the need for manual adjustment when the air conditioning in the freezer is insufficient and food is perishable.
10. Does the more frost there is in the freezer, the better the cooling?
Answer: No, just the opposite; the more frost there is in the freezer, the more it affects the cooling and the greater the power consumption! Because the heat transfer coefficient of frost is low, the thicker the frost layer, the more it affects the heat exchange on the evaporator surface, the worse the cooling effect, the load on the compressor will increase, and the power consumption will also increase. The frost in the freezer is related to the humidity inside the cabinet.
11. When buying a freezer, is it better to have more freezing power? The more functions, the more advanced it is?
Answer: Refrigeration power is an important technical indicator for measuring refrigeration equipment. Because freezers are used for different purposes, performance requirements also vary. Before we buy a freezer, we need to clearly understand what we are going to use the freezer for? Which aspect to focus on does not unilaterally emphasize that the greater the freezing power, the better, or the more functions, the better. A freezer that is outstanding in one aspect may be deficient in another aspect.
Therefore, when purchasing a freezer, we must base ourselves on our own needs and comprehensively consider various factors. We should not unilaterally emphasize one aspect of the function at the expense of the other.
12. How to reduce dry food consumption in the freezer?
Answer: The dry consumption of food in the freezer is mainly caused by temperature changes. A large amount of external heat is introduced, the temperature difference of the air is large, the temperature of stored food is high, and the air flow speed in the freezer is fast, etc. These are the main reasons for the dry consumption of food in the freezer. The main purpose of reducing dry food consumption in the freezer is to prevent the introduction of external heat. 1. Reduce the opening time and frequency of the freezer; 2. Let the food with higher temperature cool down before putting it in the freezer; 3. Try to use fresh-keeping bags or boxes to store food in the freezer before putting it in, and reduce the amount of food in the bag. air, it is best to keep the fresh-keeping bag close to the food.
13. How to remove peculiar smell from the freezer and reduce food odor?
Answer: Lemon deodorization method: put lemons cut into small slices on each layer of the freezer; orange peel deodorization method: do not throw away the peel of the purchased oranges after eating them, wash them, wipe them dry and put them in the freezer; Activated carbon deodorization method: Put an appropriate amount of charcoal into a small cloth bag and put it in the freezer. After a few days, take it out and expose it to the sun. It can be used repeatedly. Tea deodorization method: Put about 50 grams of tea in a gauze bag and put it in the freezer. Like charcoal, it can be exposed to the sun and can be used repeatedly; vinegar deodorization method: pour an appropriate amount of vinegar into an open glass bottle and put it in the freezer; towel deodorization method: put clean folded cotton in the freezer Towel; Method for deodorizing dough: When we make pasta, we leave a small piece of dough and put it in the upper shelf of the freezer, but there is no smell in the freezer for 2 to 3 months.
14. How to use the freezer to save energy?
Answer: Stay away from heat sources and minimize the number of times and opening times of the freezer; try to avoid placing hot food directly into the cabinet without cooling; reasonably adjust the temperature in the cabinet according to the seasonal temperature; defrost regularly and timely , so that the refrigeration tube can be cooled better; the food storage capacity of the freezer should be eight percent full, because storing too little food in the freezer will easily increase the number of compressor starts and increase power consumption; if the food is stored too full, it will not be conducive to cold air cycle, increasing the compressor running time and consuming unnecessary electrical energy.
15. How to restore use of a freezer that has been out of service for a long time?
Answer: The freezer should not be out of service. If the freezer is out of service for a long time, the lubricating oil will sink to the bottom and become sticky, causing the machine parts to lose oil and damage the machine parts. When the freezer is out of service for a long time, it should be used again several times. start up. Plug in the power and start it briefly, then stop it for 3-5 minutes, start it again for 2-3 minutes, stop it for 3-5 minutes, repeat this several times until the lubricating oil is heated and thinned to lubricate the parts, and then put it into normal use.