For supermarkets and convenience stores, the fog on the glass of supermarket display fridges can prevent customers from viewing their products and may reduce impulsive purchases.





Why does the glass door condense fog?


Compared with cold air, hotter air can hold more moisture. "Dew point" is the temperature at which the air cools to saturation when the water vapor content in the air is constant and the air pressure is kept constant. A glass of ice water will begin to sweat in a warm room because the air in contact with the glass is cooled to the dew point. The same thing happens when the colder surface of the glass door comes into contact with the hotter air in the building.





How to solve this problem?


Replace damaged components


A damaged door gasket may allow humid air to enter the walk-in room. This air will cool to the dew point and lose excess moisture, which will produce mist. If you have a heated door, the foggy door may indicate that you need to replace the heater wire. Some heated glass doors have anti-sweat controls and may not work properly.





Adjust thermostat


Try to raise the temperature in the walk-in cooler slightly, or raise the surface temperature of the door to a temperature that does not cause water to condense on the door. It can also be cooled by setting an air conditioner, which helps absorb more moisture from the air near the walk-in radiator. You can try using a dehumidifier to help remove excess moisture from the air.





Buy new glass door


If you are in the new glass door market, please consider buying models with heated glass or anti-fog coating. Under high humidity conditions, these coatings cause condensation to form a transparent layer instead of forming misty droplets. APEX provides a glass door model that does not sweat. Newer doors usually have better thermal insulation, which will result in a lower surface temperature and less condensate.

Commercial supermarket display fridges refer to freezer or cooler that are exclusively used for the storage, display of ice cream, beverages, dairy products, quick-frozen foods, and food materials in commercial business channels such as supermarkets, cold drink shops, frozen stores, and hotel restaurants etc. Commercial refrigerators have a strong professionalism, not only have professional storage temperature requirements, but also strong requirements for display. Good display refrigerators can effectively promote sales, so a typical feature of commercial refrigerators is with single-layer or multi-layer transparent glass doors, consumers can see the contents without opening the door.


product category


1. According to the refrigeration temperature, it can be divided into commercial freezer and commercial cooler, with volumes ranging from 20L to 1600L.


Commercial refrigerator: The temperature in the cabinet is 0-10 degrees, which is widely used for the storage of various beverages, dairy products, fruits, flowers, etc.


Commercial freezer: The temperature in the freezer is below 0-15 degrees. It is mainly used for the storage of ice cream, dumplings, and meat.





2. According to the way of opening it is divided into:front-opening, top-opening and air curtain.


Vertical cooler: divided into single door, double door, triple door, and multiple door.


Top-open type: can cooler, square cooler.


Air curtain style: including front opening and top opening.








3. According to the structure and usage habits, it is divided into horizontal type, island-type, vertical type, and counter top type cooler.


Horizontal type: the main type of commercial freezer in the Chinese market, with common volumes ranging from 100L to 600L;


Island-type: name island cabinets,are the types of products favored by customers of frozen foods and aquatic operators;


Vertical type: It is larger display area and more intuitive,mainly used for high-end ice cream storage.


Counter top type:  It is small and have lovely appearance,generally used for counter sales in high-end places.





Precautions


1. Domestic refrigerators use AC 220V / 50Hz power supply. If the power supply conditions do not meet the AC 220V / 50Hz (187-242V), you must install an automatic voltage regulator with more than 1000W for use.


2. Must use independent dedicated socket and reliable grounding. The power cord of the freezer is equipped with a (grounded) plug that conforms to a standard three-wire (grounded) outlet. In any situation,do not cut or remove the third pin of the power cord.


3. It is strictly prohibited to put flammable and explosive dangerous goods and strong corrosive acids and alkalis in the freezer.


  4. Do not use flammable spray near the freezer to avoid fire.


  5. When there is leakage of flammable gas: close the gas leakage valve; open the exhaust device and doors and windows; do not unplug the power plug of the refrigerator;


   6. Keep the keys in a safe place. Do not let children play in the cabinet to prevent accidents.


   7. Once the freezer is disconnected from the power supply, wait five minutes or more before turning it on again to avoid damage to the compressor or the system. During maintenance, the power plug must be unplugged. After the freezer is in place, the plug should be accessible to prevent unplugging the power plug in time if a danger occurs.


  8. If the power cord needs to be extended, the cross-sectional area of the extension cord must not be less than 0.75mm2. If the power cord is damaged,must use a dedicated cord and contact the freezer company's local after-sale service personnel to replace it.


  9. Do not put food in the freezer immediately after the power is turned on. Let the empty cabinet run for a period of time (about 3 hours in summer and about 2 hours in winter), and then store the frozen food in the cabinet.


  10. After the freezer is moved, leave it for more than ten minutes before turning on the power.


  11. Regularly clean the freezer, and unplug the power plug for safe. Regular dust removal of the heat exchanger in the engine room can improve heat exchange efficiency and reduce energy consumption.


  12. Mechanical defrosting commercial freezers should be defrosted regularly to prevent the thick frost layer increasing the energy consumption. When defrosting, first transfer the goods, leave it for a while to melt the frost layer, and then use a defrost shovel to remove it. Don’t use sharp things to defrost for protect the inner wall.





 

The refrigerator with mechanical temperature regulation generally has a temperature regulation of 0-7 gear. Correct temperature regulation can save electricity. In summer, it can save electricity by adjusting to 2-3 gear. In winter, it can be adjusted to 6-7 gear. The following is a detailed introduction:

1. The temperature range of the refrigerator is 0-7, which can save electricity by adjusting the temperature correctly. In summer, it can save electricity by adjusting to 2-3, and in winter, it can be adjusted to 6-7, mainly because the external temperature will affect the performance of the refrigerator;

2. If the temperature is about - 6 degrees below zero, it is regarded as a star, and the food can be stored for about a week; If the temperature is about - 12 degrees below zero, it will be regarded as two-star, and the food can be preserved for about a month; If the temperature is about - 15 degrees below zero, it is regarded as three-star, and the food can be preserved for about three months; If the temperature is around minus 18 degrees, the food can be kept for three to six months. Of course, only dry or refrigerated food can be kept for a long time. It is recommended that fresh vegetables and meat be eaten as soon as possible



What's the best temperature in the refrigerator | Slim Drinks Fridge

1. The basic requirements for the refrigeration system of the commercial display freezer: compressor (heart): seal each nozzle before use, pull out the rubber plug when used; condenser: paste; filter drier: dry filtration, sealed before use, ready for use Unpacking; capillary tube: flow, pressure drop; evaporator: paste; pipeline: the pipeline does not touch, the inside of the tube is clean, and each welding point does not leak; comprehensive testing of refrigeration performance, electrical performance, and noise testing.



2. The basic requirements of the commercial display freezer thermal insulation system: the foaming quality of the commercial display freezer and door body: appearance, size, foam density, freezing test. Door seal: appearance, size, welding performance, suction and elastic compensation. Commercial display freezer and door seal assembly: there is no gap, the door seal has a certain width on the steel plate, and the door opens with a certain force.



3. The basic requirements of the commercial display freezer temperature control system: thermostat inspection, hot and cold temperature points, and consistency. Fixing of temperature sensing tube: positioning size, consistency. Lighting: Lights up when the door is opened, and goes off when the door is closed, durability.

The function of the refrigerator is to keep fresh, the function of the freezer is to freeze, and the refrigerated-freezer conversion cabinet can keep fresh and quick freeze. The temperature of Upright Freezer is -16℃——-26℃. It is used for quick-frozen food, cold drinks and long-term meat. It can be stored in Upright Freezer for a long time. The water in Upright Freezer food is easy to condense into frost. It must be defrosted to a certain extent. The temperature of the refrigerator is 2°C -10°C, so that it will not frostbite the food but also has a fresh-keeping effect. You can put some fruits, vegetables, beer and drinks.



Upright Freezer is a low-temperature refrigeration and freezing equipment for deep freezing. Usually called a freezer etc. Upright Freezer has many uses, from the food industry to the medical industry, etc., can be used. According to different use environment and use effect requirements, the cooling space of Upright Freezer is from -45℃ to 0℃, each has its own interval. Vaporization absorbs heat and liquefaction exotherms.



The Upright Freezer uses a compressor to compress gaseous Freon into high temperature and high pressure gaseous Freon, and then sends it to the condenser to dissipate heat and become liquid Freon at room temperature and high pressure, so the condenser blows out hot air. Then it goes to the capillary and enters the evaporator. After the freon reaches the evaporator from the capillary, the space suddenly increases and the pressure decreases. The liquid freon will vaporize and become gaseous low-temperature freon, which absorbs a lot of heat, and the evaporator will change Cold, using refrigeration or air cooling to achieve cooling in the room (box).