Machinery

How a refrigerator with no frost works

May 8, 2020

Emergence of No Frost systems (new frost) has become a real find for users of refrigerators and freezers. Many people take it literally, without disconnecting the unit from the mains since its appearance in the house - and this is fundamentally wrong. It will be interesting for current and future owners of such equipment to know, how the frost know how it works, Moreover, that there are plenty of nuances here.

What is No Frost technology

First of all it is necessary to understand, why frost is formed on the walls of the device (and therefore, and ice). There are several reasons:

  • large presence of condensate;
  • unpackaged liquid products (increase humidity);
  • long work of equipment (years) without thawing.

Everything is different with Knowfrost. Literally translated, the name of this system means "no frost". AND, really, no fields or snow are formed inside the refrigerator. These are not spells, and features of the device.

  1. Special fans blow inside the device, which drive cold air on the device. This ensures constant air circulation in the enclosed space of the device.
  2. An evaporator compartment is installed between the refrigeration and freezer compartments.
  3. On the one hand, air enters the evaporator, where it cools and goes to the opposite side (at this time frost is formed in the department). Periodically the compressor "shuts up" - at this time the thawed liquid with frost is deduced from the device in a special tray.

It is thanks to such a well-thought-out system that frost does not appear on the walls of the device, a, so, and condensate.

And the system "antifreeze" is used in freezers, and in the refrigerators themselves.

The advantages of such units are seen in the following:

  • rapid cooling of the products placed in them;
  • the minimum temperature difference between the entire chamber space;
  • very fast freezing of products;
  • quick recovery of the temperature inside the device even after frequent opening and closing of the doors of equipment.

There were also shortcomings, to which you also need to be prepared:

  • such devices have a smaller capacity (most of the interior space is occupied by a block from No Frost;
  • increased electricity consumption;
  • noticeable noise at work;
  • weathering of the surface of products;
  • high cost of such equipment.

Built-in refrigerators with "no frost" system

In the modern market two types of an arrangement of similar units are offered - free-standing and built-in options.. The second is the most interesting, because they fit perfectly into any interior: they can be identified under the tabletop, decorate with panels for the kitchen interior or put in any other convenient place for the user.

Built-in appliances significantly save space in any kitchen, which is important for small spaces. And you can "hide" in this way in the specified refrigerator, taking into account the peculiarities of his work? Manufacturers claim, what so.

The following parameters should be considered when choosing a built-in refrigerator:

  • compact size, suitable for the selected niche;
  • ease of operation and maintenance;
  • the optimal number of options;
  • ergonomic camera device;
  • does not require defrosting the freezer;
  • reasonable price.

Installation also requires compliance with certain mandatory requirements.

  1. The room itself should be well ventilated and moderately humid.
  2. To avoid overheating, from the walls to the device itself must be left at least 3-5 see on the side and 10 see above. The back wall does not overheat.
  3. There should be no heat sources nearby.

An overview of popular built-in models with the ability to defrost

Here is a rating of the popularity of built-in refrigerators with no frost system.

  1. Users in one voice prefer two-chamber Hotpoint Ariston BCB 33 A F (dimensions 54?18,5?54,8 cm with total volume 274 liters). In terms of price, quality and capabilities of such a device is the undisputed leader. Here only the necessary options, including Active Oxygen, which ensures the preservation of the original freshness of food by ozonation, SuperCool function (fast cooling even at maximum camera load), SuperFreeze (very fast freezing). The owners are captivated by the easy installation of the unit and the most efficient energy saving.

    Hotpoint Ariston BCB refrigerator 33 A F

  2. Volume of the built-in German unit Liebherr ICUNS 3314 designed for 262 liters, and its dimensions are 54x55?185 Along with the "no frost" can be distinguished superfreeze. However, users are not entirely satisfied with noise and vibration, which is reproduced by the device at work.

    Liebherr ICUNS refrigerator 3314

  3. One of the best models of "know frost" passed 2016 year named Siemens KI39FP60 with built-in body type. The size is not much different from the previous ones (56x55x177 cm), also among the features here are the possibilities of supercooling, superfreezing and temperature indications. But not only that - in this model the energy consumption class A ++ (which is higher, than in the previous two options). so, the developers' concern for the environment can be traced here. Besides, technique, really, easy and pleasant to control with one light touch with the touchControl system.

    Siemens KI39FP60 refrigerator

Among other brands, interesting built-in models with No Frost can be found in Atlanta, Bosch, Samsung, LG, BEKO, Siemens, Mitsubishi.

How to care for a unit with such a system

The technique is used to store food - it is logical to assume, that in such a place various odors will be heated. The reproduction of bacteria and microorganisms begins very quickly. And this is not to mention the stains - when interacting with food, they are inevitable. Even on the walls of the freezer: this often happens, when the user forgets to close the door completely. All these and other reasons make cleaning and airing of the unit relevant at least once a year and a half..

General requirements for maintenance work for a refrigerator with No Frost

Defrosting is, of course, conditional term for care of similar devices, just such a procedure in the presence of "bezineevoy" technology should be done much less often, than with conventional units. The most complete information on working with refrigerators, have such a system, of course, contained in the instructions for each model. The general recommendations for all will be as follows.

  1. It is not necessary to plan carrying out of action in strong heat - such loading will become strong test for the compressor.
  2. You should know in advance, one or two cooling circuits in the refrigerator. In the latter case, only one chamber is defrosted. In the first version, the equipment is completely disconnected from the network.
  3. You can speed up the process with a regular hair dryer. This "know-how" will quickly remove excess moisture and bring the temperature inside the device to room temperature in a short time.
  4. If, when there is no hair dryer, the appliance simply remains switched off for two hours.
  5. The unit should be washed completely inside and out. Do not ignore the back wall, after all, it accumulates the most dust.
  6. It is forbidden to use sharp objects (example, knives) to scrape the ice - there is a risk of damaging the inner walls.
  7. You can not turn off and immediately turn on the refrigerator - from this time should pass, at least, 12 hours (optimal time - day). It's all about high pressure, supported in the motor capacitor. When you turn it off, naturally, falls. Ideally, this should happen gradually, but it is with repeated abrupt inclusion that it will increase again, which leads to heavy motor loads and can break it.

No Frost refrigerator cleaning procedure

It is forbidden to use chemical detergents for washing inside the unit: there is a risk, that their remains will settle on food. Externally it is allowed to use any non-abrasive substances, if only they did not damage the surface. Enough mixture of soda and water in proportion 2/3 tablespoons of powder to 0,5 liters of liquid, to thoroughly clean the interior with cotton swabs. The procedure itself will follow the following algorithm.

  1. The appliance is disconnected from the mains, after which all products get from it.
  2. The first thing to clean the vents - they are treated with cotton swabs soaked in the mixture. This should be done without unscrewing and dismantling the ventilation panels (this may violate the available technical warranty).
  3. Shelves, boxes, pockets and doors are washed with the same solution.
  4. Rubber seals are also processed, in which the nursery of microbes is very often found.
  5. The last step is to wipe all the details with a simple damp cloth.
  6. You can slightly ventilate the refrigerator, leaving his door open.
  7. After laying out the products, the unit can be plugged in.

Preventive measures to continue the operation of refrigerators No Frost

Any technique will last longer with proper care. There are some simple rules, which can be followed by the owner of the device:

  • the technique itself is recommended to be placed away from sunlight and the stove;
  • all contaminants in the appliance are removed at once - it will be harder to do after drying;
  • do not place food hot;
  • it is best to store the products in appropriate containers or packages.

Who should buy this technique

Certainly, that the appearance of such refrigerators makes you want to buy it for your kitchen. But, it turns out, it doesn't always make sense to do that.

  1. In arid regions, there will be much less problems with excess moisture inside the refrigerator, a, so, and there will be no question of excessive ineyeobrazovaniya.
  2. But Frost is not for that, who used to place products in different temperature zones of the device.
  3. Tim, who doesn't look in the freezer too often and puts food in large quantities, no quick freezing is required.

In any case, refrigerator is chosen, focusing on their own requirements for technology. Will he be with No Frost or not, have additional features or do without them, to be built in furniture or to stand separately - each user decides.