Where the air conditioner takes the air for cooling

The principle of operation of the air conditioner, its device and possible reasons for poor operation

Air conditioning is one of the most technological household appliances, which requires proper installation and attentive treatment. So that it serves to properly, it is worthwhile to have an idea of ​​its device, the principles of functioning and possible problems in operation. Only in this case you can provide a healthy microclimate in the room for a long time.

The air conditioner is common to all models. Any air conditioner consists of the following main nodes:

  • Compressor. Designed to compress the refrigerant and maintain its movement along the refrigerator.
  • Air heat exchanger of the external unit. Carries out the function of the capacitor when working in cooling mode. It is intended for condensation and cooling of the refrigerant.
  • Air heat exchanger of the internal unit. Performs the function of the evaporator during the operation of the air conditioner in cooling mode. When evaporated, the refrigerant goes from liquid to the gaseous phase.
  • Capillary tube. Used as a throttle device that increases the pressure of the refrigerant in the high.pressure zone (including. in the air heat exchanger of the external unit) and reduces in the low.pressure zone (including in the air heat exchanger of the internal unit).
  • Fan. Used to create a flow of air that blows the evaporator and capacitor.

How the air conditioner works

The principle of operation of the air conditioner is built on the transfer of heat from the premises to the street. Haier air conditioners can work both in cooling mode and in heating mode.

Cooling

After the air conditioner is turned on, the gas.shaped refrigerant under low pressure enters the compressor, where it is compressed and heats up to 70–90 o C, and then enters the capacitor. In the air heat exchanger of the external unit, a refrigerant condensation occurs. the transition from a gaseous state to liquid. This is accompanied by cooling of the refrigerant and heat release. Passing through the CapPILER PIP, the refrigerant is throttled. In the heat exchanger of the evaporator, the reverse process occurs when the refrigerant goes from liquid to a gaseous state. In this case, cold is released and heat is absorbed from the room.

Heating

When operating air conditioning, heat is necessary from the condenser. In domestic air conditioners of old models, this heat is vested outside the room. complex models allow you to use this heat to turn on the heating mode of the premises.

The optimal air exchange in the room is a security security for a person

It is noted that if a person’s work is not related to open air, then in an apartment or office he spends from 16 to 24 hours a day. And here the ventilation is given a very important role. According to the norms, the air in the room should be updated once every 1-2 hours. In case of non.compliance with this rule, excess carbon dioxide and humidity accumulate in the rooms. This leads to a deterioration in a person’s well.being, the appearance of mold and fungus on the walls. Microbes and allergens accumulate in a poorly ventilated room. Stuffiness, “crying” windows, the formation of mold and fungus, as well as deformation of wooden furniture. all these are obvious indicators that air exchange is violated in the apartment.

Undoubtedly, the ventilation system in our homes is installed in order to, coupled with periodic airing, solve the problem of insufficient air exchange. Ideally, the air should penetrate the apartment through the windows, circulate freely through the slots between the door and the floor, and then freely move out of the room through the ventilation ducts, which are usually located in the bathroom, toilet and in the kitchen

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In order to create a healthy atmosphere in the apartment, it is recommended to take the following steps:

  • Using a simple dough with a thin paper strip, make sure of the proper operation of ventilation. If the test showed that the air is not removed from the room or is difficult to remove through ventilation, then the channel must be cleaned. In apartment buildings of ventilation ducts. the area of ​​responsibility of the management company or HOA.
  • Pay attention to the windows. Through old wooden frames, street air penetrates into the room through the cracks. However, if the apartment has plastic windows with a seal between the frames, then street air does not penetrate the apartment when the windows are closed. In this case, it is recommended to install supply valves.
  • Install the air conditioner in the room for cooling or heating air in the room, as well as for cleaning from dust.

Such events will help create a healthy microclimate in the apartment, which will help improve the well.being of its inhabitants. But the choice of the place of installation of the internal block in the room must be treated as carefully as possible, so as not to harm human health and not reduce the life of the device.

Air circulation when working air conditioner

When choosing the location of the internal unit and adjust the direction of the air jet from the air conditioner, it is necessary to remember that the presence of a person in the zone of the cold air stream is threatened to his health. Sometimes they mistakenly believe that the 20 ° C set on the air conditioner is the temperature of the air jet coming from the air conditioner. This is not true. During the operation of the air conditioner, the air located indoors is delayed in the inner unit. Air conditioning controls the air temperature at the entrance to the device. A chilled jet from the air conditioner below the given temperature by 8–10 ° C.

In the hot season, when the air conditioner is necessary to cool the room, the blinds of the device should be installed as much as possible. With such adjustment, warm air concentrating above will cool faster. In addition, it will be safer for people in the room.

In the cold season, when the room must be heated, a warm air flow from the air conditioner is directed vertically downward. Then heated air masses, rising up, warm the room faster.

Where cold is formed in the air conditioner?

The compressor compresses, the TRV expands, the capacitor condenses, and the evaporator evaporates. So where is the cold form in the air conditioner?

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Air conditioning. amazing device. He receives cold from heat, and to cool the room, he “specially” heats the refrigerant. If you disassemble the air conditioner, we will see many very complex devices. First of all, this is a compressor. Next. evaporator and fan in the internal unit, capacitor and fan in the outer unit, automation blocks.

But in none of these complex devices the cold is not formed. Cold in the air conditioner occurs in one of the simplest elements-a capillary tube or a heat-regulating valve.

The air conditioner compressor compresses the refrigerant. At the same time, the refrigerant heats up. The pressure and temperature at the exit from the compressor depend on the type of refrigerant used. For example, for R410A it can be 25 bar and 70 ° C.

Further, with constant pressure (25 bar), the condensation process occurs. At the output of the capacitor, the refrigerant temperature is 7-15 ° C above the outer air temperature. If the street temperature is 30 ° C, then the temperature at the output of the capacitor is about 40 ° C.

The capacitor follows the heat-regulating valve (TRV), and it is in it that there is a sharp cooling of the refrigerant.

Similarly, in the compressor when compressed, the refrigerant was heated from 15 ° C to 70 ° C, a sharp expansion of the refrigerant (a sharp decrease in its pressure) occurs in the TRV, and the temperature drops from 40 ° C to 3-7 ° C. It is this refrigerant that enters the internal block of the air conditioner and cools the indoor air.

So, an element of the refrigerator in which the cold occurs is a pass or a capillary tube. The temperature of the refrigerant to the TRV is about 40 ° C, after the TRV. about 5 ° C. The exact values ​​of the refrigerant temperatures depend on the internal and outdoor air temperatures, as well as on the operating mode of the air conditioner, in particular, on the degree of loading it.

How the air conditioner works when heating

Most modern air conditioners are also able to work on the heating of the premises. Such split systems are equipped with a four-way valve, which unfolds the direction of movement of the refrigerant, changing the evaporator and capacitor in places. In this mode, the split system takes heat from street air and transfers it to the room. Despite the low temperature of street air, it still contains a certain amount of thermal energy. it is used to heat.

The refrigerant absorbs thermal energy from street air, is compressed in the compressor of the external unit, as a result of which it heats up and moves to the internal unit.

As we see, the principle of operation of the air conditioner in heating mode is similar to the coolering mechanism, however, all processes are deployed in the opposite direction. The differences in the operation of the split system, depending on the selected mode, are shown on the schemes below.

The diagram shows that when working for cooling the indoor unit of the split system, reduces the temperature of the internal air of the room, and the outer block blows excessive heat, stretched out of the air of the room.

In heating mode, the internal block of the air conditioner heats the air due to heat obtained from the street, and the outer block blows cold out of indoor air.

When choosing a split system, you need to check the minimum temperature at which the device is capable of working in heating mode: some of the models work correctly for heating at a temperature not lower.7 ° C, but there are also models that are allowed to use at temperature.20 ° C or below

It is important to understand that with a decrease in temperature on the street, the efficiency of heating using the air conditioner is reduced, since the amount of thermal energy in the outer air drops. In the frosts supplied with a split system, heat may not be enough. Thus, the heating mode in split systems can be considered as a solution for the offseason, when central heating in the apartment does not work yet or as an additional source of heat in a private house.

In heating mode, the air conditioner does not use heating elements, an increase in air temperature occurs due to heat from street air

Want to pick up air conditioning in the off.season? Leave a request, get a consultation and free departure of an engineer!

Differences in the principles of air conditioners with an inverter and without an inverter

There are two types of household split systems: inverter and classic-On/OFF air conditioners. The principle of operation of these devices does not radically differ. in both cases all the processes described above occur. over, between such air conditioners there is a difference in the methodology for maintaining the temperature set by the user:

On/OFF air conditioners act on the principle of “turning on-shutdown”: when the split system cooled the room to a given temperature, it turns off and then turns on again with an increase in temperature by 1–2 ° C.

Inverter split systems change the power of work depending on the temperature in the room and the temperature set by the user. When the air conditioner cooled the room to a given level, he supports the temperature, working at minimum power. Thanks to this feature, inverter models smoothly cool the room, without sharp temperature differences. In addition, the presence of an inverter reduces electricity consumption by 30% compared to ON/OFF models.

The principles of the air conditioner with an inverter and without an inverter are almost identical, only the methodology for maintaining the temperature set by the user is distinguished

Types of air conditioners

Manufacturers produce all kinds of air conditioners, investing significant funds in their business. As a result, a modern consumer can choose any model by any parameters.

Split air conditioners. systems

Split type devices are perfect for small rooms.

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ON A NOTE! For installation, units are divided into floor, window, wall and ceiling air conditioners.

There are two types of such devices: dividing systems and multi.divided systems. Wall devices of the type of split system are two blocks: a small internal node and a large external module.

The external device contains the most noisy in the operation of the device. Multi split system is formed as a result of combining several internal blocks to a single external module. This allows you to optimally preserve the design of the house.

Ceiling type air conditioners

In rooms with a large area, as a rule, they choose units for installation on the ceiling. Their advantage is that the cooled air is evenly distributed horizontally around the room, without acting directly on people.

The massive air conditioning air conditioning is almost invisible, and it is indispensable when you need an extensive flow of air for the most distant parts of the room, while the jet length in some models reaches up to 55 meters.

There are also channel and cassette ceiling air conditioners. At the same time, the first devices are completely hidden behind the stretch ceiling or in the channel, and the second type. cassette blocks look like a ceiling tile with a size of 600 × 600 mm.

Split system

Although the disconnective system consists of an internal and external modules, according to the principle of operation, it does not differ from the action of a household ceiling air conditioner of any other type.

In the body of the external unit, there is a heat exchanger, fan and compressor. Additional elements of the split. systems are a drainage, an expansion valve and connecting tubes.

As well as to connect the unit to the mains, it has the necessary launch and control devices.

Industrial air conditioners

Such devices are developed for servicing areas of more than 350 meters and therefore they have a number of features, thereby differing from household air conditioners. The device of precision equipment can be different.

They are often installed in houses where a special microclimate is needed for each room. shopping centers, banks, hotels. Industrial air conditioners are divided into the following systems:

Multizonal devices. These VRF and VRV air conditioning nodes include up to 64 internal modules and up to three external blocks. In total, they are located on communications up to 300 meters long.

For any internal module, it is allowed to set a separate temperature and provide its microclimate in each room. The error of the set temperature is only 0.05 degrees.

“Chiller-Fankoil”. Devices with this system are characterized in that the contour is used not a freon, but water or antifreeze is used. The central refrigerator is called the “chiller”, and the heat exchange elements are called “fanchoils”.

The advantage of such an unit is that the distance between these components can be any, since water flows through ordinary pipes.

Central and roof air conditioners. These devices are diverse in action. They are used in the form of units for heat transfer, fans, cleaners and humidifiers.

It is called central because the air mass is processed in the inner block and then moves through the pipes through the rooms. Installation of air conditioners of this type and communications is highlighted in particular complexity and it requires an external source of cold.

If possible it is best to choose roof monoblocks that are simpler in installing.

Malfunctions of air conditioners

Today’s climatic equipment is equipped with a warning function about possible breakdowns. It is only worth deciphering diagnostic information.

The unit does not turn on

This is the most common breakdown of the air conditioner and probably every user has met with it. These problems usually occur due to the electric part:

  • The device is not connected.
  • The team microcircuit is faulty.
  • There is no connection between external and internal blocks.
  • The control panel does not work.
  • The protection machine worked.
  • Erroneous switching when applying signals.

And finally, the device can fail due to banal wear of parts.

Disconnecting split system after short work

This phenomenon is due to overheating of the compressor, as well as due to a breakdown of a protective relay. The installation is heated due to contamination of the radiator on the external module.

In such cases, the preventive cleaning of the grill should be carried out. And also after refueling, the balance in the contours of the radiator and capacitor may be violated.

Condensation from the inner block

In the summer, air conditioners can observe the overflow of capacities with condensate. The reason for this may be the freezing of the heat exchanger, which should be insulated. If the course appears in the joints, then you need to twist the nuts. In the case of mud in the drainage tube, it should also be cleaned.

Air conditioning does not work at full power

Such a malfunction happens mainly in the summer. The device consumes a large amount of energy during operation, but is not able to provide the necessary temperature regime. The reason here most often lies in contaminated air filters.

ATTENTION! Thin cleaners, ozoners, ultraviolet light lamps, although they improve air, but at the same time significantly affect the cost of the unit.

Smells

If an unpleasant shower begins to appear from the device, then there are several reasons for this. In the case of a burning odor, you need to check the wiring, and it is recommended to do this in service centers.

When the stench gives with damp or mold, this means that a colony of bacteria formed inside the unit. You can get rid of it using an antifungal drug.

Cold vs fresh air

It is difficult for a person to objectively assess the quality of the air with which he breathes. The difference is noticeable only with sharp changes when we leave the stuffy office or metro on the street or open the window if many guests have gathered in the kitchen.

It is purely intuitive that the air outside the city is fresh than the air in the city, and the air in the room is not as fresh as on the street. Cold air seems fresh, even if it is contaminated and there is little oxygen in it.

Cold water also seems tastier and fresh than water at room temperature. But the water is not put in the refrigerator to make it cleaner.

What is fresh air?

Fresh air is air in which the concentration of carbon dioxide does not exceed the norm, there are no impurities, dust and burning. This indicator does not depend on the air temperature. Warm and cold air can be fresh.

The device that measures the level of carbon dioxide in the room will help to objectively evaluate the quality of the air. Optimal indicators of the concentration of carbon dioxide in the room. up to 800 ppm. Often the level of Co₂ in residential premises and offices is exceeded 1.5–2 times, only because there is no constant air exchange. Because for this you need to ventilate every hour for 15-20 minutes, and this is not always enough.

conditioner, cooling

Even if there are few people in the apartment or office, but the windows are closed and there is no flow of fresh air, the level of carbon dioxide will be exceeded. Subjectively, such a concentration is not felt as stuffiness, especially if the air conditioner is included and the air is cool. Read more about the norms of carbon dioxide in the article “Carbon dioxide in the room: GOST standards”.

To establish air exchange in the room, you need to take care of the influx of fresh air from the street. One of these options is the installation of centralized supply ventilation behind the ceiling, but this is not always convenient and budget, and for laying the air ducts you will have to lower the ceilings by 15–20 cm.

An alternative solution that will not require large financial costs and repair in an apartment or office will be the installation of brisers or supply complexes.

These devices, in contrast to the central supply ventilation, are better filtered by air and allow tuning microclimate indicators for each room separately.

We tell you how to choose air conditioning for the apartment, what are its characteristics and functions to pay attention to, what restrictions to take into account and what else can do the air conditioner, except for cooling air.

What is a briser and how it works, the principle of operation and the main functions. How with the help of a breezer you can solve the main problems of the microclimate of the room.

The basic standards for the concentration of carbon dioxide in the room are optimal and permissible values. How to provide the optimal level of CO2 indoors.

A complete overview of the Airnanny A7 air humidifier: the dimensions and principle of the device, the filtering system, the mode of operation and control, performance, installation features.

We tell that such humidity is, the main moisture standards according to GOST, which humidity is optimal for the bedroom, living room and children’s room and how to normalize it.

We will talk about what thin.dispersed particles are, where they come from, how they are dangerous and what can be done in order to protect themselves from their harmful effects.

We will talk about how to determine the relative humidity of the air and how to maintain it at the optimal level.

A complete overview of the Airnanny A7 air humidifier: the dimensions and principle of the device, the filtering system, the mode of operation and control, performance, installation features.

The basic standards for the concentration of carbon dioxide in the room are optimal and permissible values. How to provide the optimal level of CO2 indoors.

What is a briser and how it works, the principle of operation and the main functions. How with the help of a breezer you can solve the main problems of the microclimate of the room.

We tell you how to choose air conditioning for the apartment, what are its characteristics and functions to pay attention to, what restrictions to take into account and what else can do the air conditioner, except for cooling air.

Choosing a device. How to look and what to pay attention to.

First of all, I want to say that on all top sites selling air conditioners, not the most convenient navigation. It is very difficult to find information about devices. We have to get through the verbal jungle:

conditioner, cooling

No objective data and numbers are quite common words that actually do not say anything about the product. But find out what is sold for such a large amount, I really want to.

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Without finding the information I needed on the page dedicated to the device, I called one of the companies to get a specialist consultation.

On the same day they did not answer me to the application. They called back to the next. The specialist was very polite and attentive, but was incredibly embarrassed when he heard my question about what air exchange was provided by air conditioning. It turns out that this is not interested in anyone.

I will not hide, when choosing a home technique at some point, it is very easy to succumb to the impulse and believe in all pictures and promises, simply because it is a long time to go into technical details for a long time, tedious and difficult.

Assessing the quality of air and Co₂ subjectively is very difficult. Cold air always seems fresh.

It is very important to understand that without the receipt of fresh air from the street in the room, the level of carbon dioxide will constantly grow, even if only one person lives in the apartment. Devices for measuring the level of CO₂ are rare, it is enough to know a simple fact: if the room does not enter the air through an open window or window, no air exchange is an air exchange.

Therefore, it is important to pay attention to how much air enters the room if you choose a device to improve microclimate.

But back to the data received from a specialist from the first company. After some time, he called back and said that the premium air conditioner with fresh air subscription provides air exchange for 10 m³/hour. For reference, this is about the same as a regular influx can give. And this, alas, is not enough.

But then this air conditioner performs thin filtration of air from dust, bacteria and microorganisms. It would be a shame if he did not do this at such a price, but it was interesting which filters are used to achieve this result.

The answer also did not immediately follow this question. The air conditioning filters are not bad, but not the best. F3 “For rough cleaning”, HEPA H11 and AK.

What kind of AK could not be pierced, as well as why F3 is used for rough cleaning (this is a filter of fine cleaning, not the highest quality of filtering, but still). If you use F3 for rough cleaning, it will quickly clog.

There are no complaints about Hepa H11, this is a good filter, although again, there are higher filtration degrees that I would like to see in the premium segment.

In general, the air conditioner body is not so large as to accommodate high.quality coal filters and filters HEPA. This means that for safe operation filters will need to be changed very often, every 2-3 months.

#1 AC Problem With Central Air Conditioning Not Cooling

Such low air exchange indicators confused me, because a competitor from the mass segment, with a cost of about 30,000 provides the best air exchange.

I wanted some confirmation of information in the form of specific documents, numbers printed on paper or executed in the online document, and not just words. By the time the article was written, data from the first company (in the top on the search) were not received.

But I’m not one of those who quickly give up, so I contacted another company. And again, surprise and fright, search for information, silence. The third request received a fairly quick response, fortunately.

I will explain what such a stinging signature is: the numbers are too big. Probably confused and substitution of concepts occurred.

I asked the question, what is the diameter of the hole through which such a large volume of fresh air comes and clarified the question of how much fresh air enters the room.

conditioner, cooling

I was surprised that through such a small hole such a powerful air exchange is possible. Apparently, my answer forced me to think and the question was forwarded to the technical specialist:

From the words of a technical specialist, my curiosity flared up even more. I clarified whether I understand correctly that the diameter is only 3 cm, otherwise I never get confused and 30 mm is not 3 cm, I’m not a technical specialist where I am.

What are the little things, really. Maybe you can pay 17,000 instead of 170,000 for the air conditioner? After some time, I still waited for results and numbers.

There were many doubts, but still. this is the data on the real air exchange, obtained in a long correspondence between me and technical specialists. Air conditioning air conditioning air exchange provides air exchange of not more than 32 m³ per hour.

Task: to organize a sufficient air flow and its cooling.

Since I am doing ventilation, it became obvious to me that I need to establish air exchange. The windows of my apartment are on the sunny side and now the repair has just begun there. To be honest, I do not like to clutter up the interior with different devices, so I was very interested in solving the problem by installing one thing. It feels like one device should be cheaper than two.

I would have approached a budget air conditioner with an air flow of 30 m³ per hour, if I lived alone, but I live not alone. And fresh air is very important for me, because I work a lot at home. So I need more air exchange. But there are no such devices on the market.

Unfortunately, Brisers cannot cool the air. On the other hand, this option is needed only 3 months a year if there is a very hot summer. The rest of the time is needed only the supply of fresh air, filtering and heating the air to a comfortable temperature.

Let us return to the air exchange: the Tion 3S briger provides an influx of 30 m³/h in the first mode and up to 140 m³/h at maximum speed, if you do not remove the coal filter.

Tion 3S works quietly, from 19 dB at the first speed to 47 dB in a turbo mode, the usual range of speeds used: 23-35DB, which is comparable to the rustle of foliage outside the window or whisper.

He has a fine filtration system that exceeds the one that is installed in the air conditioner of the premium segment: G4 filter of primary coarse cleaning, an increased coal filter from exhaust gases and harmful impurities of AK-XL and Need H11 (this coincides).

The filters inside the breezer are large, they will need to be changed once every two years, if you are lucky. If the air in the area is very dirty. once a year. It is difficult to predict, even if you are guided by a card. I will understand in practice.

If I also want a device that will cool the air with a hot St. Petersburg summer, I will have to buy air conditioning. In this case, you should pay attention to the model in which there are no additional options in the form of air knot, heating and thin filtration, because Breezer has all this. Such a device can be bought for a maximum of 20,000 or less.

As a result, I will obtain air filtration according to the premium standards, air exchange is several times superior to the air conditioners with sub-stated and high-quality air cooling.

Compare: 35 900 (briger) 20,000 (simple air conditioning) installation 4500 and 8000, respectively. Total: 68 400. Not a little. But not much, when compared with the premium segment.

It is possible to add a “smart” microclimate station with Co₂ sensors. The system monitors the temperature, humidity of the air and what the level of carbon dioxide in the room. Magicair automatically controls the operation of devices. It can be configured in such a way that it controls not only a briser, but even the easiest air conditioner (additional Wi-Fi options for the device itself are not needed). Magicair will cost another 8,000, but even the premium air conditioners do not have such an option. A pleasant bonus will be that microclimate can be configured from a smartphone.

To be honest, I thought about whether I need cooling, maybe it will be enough just a flow of fresh air. over, I need it all year round, and not just in the summer. Many will ask why you can’t just open the window, because this is budget and you do not have to think about the influx.

Air conditioner’s work in the summer. Using air conditioning in winter for heating

Many people often ask the following question: is it possible to include air conditioning in the apartment in winter and why it is impossible to turn on the air conditioner at minus temperature. We will tell about this below, having described in detail the principle of the air conditioner for heating and the moment to how many degrees you can include it.

Is it possible to include air conditioning in winter

Before using the heating mode and its inclusion, see if the air conditioner has such a function and whether it can turn on. This information is indicated in the instructions and on the device itself. Heating mode is indicated by a solar icon.

In the case of a regime, thanks to which you can start heating and warm the room better than central heating, you need to look at the indicator of the lower temperature threshold, in which you can include heating.

This is important, before equipping the premises with a air conditioning system and the heater, start the distribution of heat by home. Typically, information on how to enable equipment and start to heat the room in the instructions.

note! In addition to the topic, to how many degrees you can use the air conditioner, it is worth indicating that each thermometer has its own error. Sometimes it can reach 2-3 degrees. Therefore, it is better not to use a split system when showing a critical mark, not to heat.

At what temperature it works for heating

The instructions indicate the temperature at which the device works for heating. Depending on the type of equipment, the lower limit may be 0 or.20 degrees. It should be understood that if the air conditioner works in only one mode, then in winter it cannot be used. It can be used only in summer, spring and autumn up to 0 degrees.

The principle of operation of the air conditioner for heating

Initially, the air conditioner was intended only to cool the room. But today some models can warm the room. It turns out thanks to the joint work of the refrigerant, compressor, capacitor, evaporator and internal/external unit.

So, the refrigerant in the form of gas goes to the compressor. From there it heats up and enters the capacitor department. There the refrigerant becomes water and penetrates the separation of the evaporator of the inner unit. It is transferred from the liquid to gas and removed from the premises through the external unit.

Then he again enters the compressor department, and the work begins again. The heating mode itself creates a valve that turns the air conditioner with the evaporator in the conditions of normal operation.

At what temperature it is possible and cannot be turned on

The best option would be to use the air conditioner in the winter season at a temperature of 3 to 10 degrees. In this case, the device will be able to show maximum performance when consuming 3 kilowatts of electricity (approximate number). In case of temperature drop on the street below 0, equipment productivity drops. Compressor wear occurs, air begins to pump incorrectly.

However, all devices have their own acceptable technical temperature boundaries when they can be used. For example, the instructions may indicate that compressor wear will occur at a temperature.15 degrees. Turn on the device with an indicator not lower.12 degrees. This moment should be understood when acquiring a foreign or production device in a house.

Until how many degrees you can turn on the air conditioner

Typically, the air conditioner operates in heating mode when the air temperature exceeds greater.5 degrees. If there are lower temperatures, then the heating system cannot be used due to the process of lowering the power of the system, damage to the drainage and risk of condenser icing and the subsequent repair of the inverter.

But some of the models of splites are able to heat the air at temperature.10 and.15 degrees. At the last mark, they can heat the house of the inverter type model. They are regulated, therefore they are more flexible to temperature changes.

In general, you can indicate that in winter the air conditioning is needed with caution in order to heat up, following the operating instructions. It is better not to use the system in case of a critical scheme thermometer, which is declared by the manufacturer.

Operating principle

The work cycle of any air conditioner turns on several steps.

  • A gaseous freon enters the compressor from the inner block, compressed only to 3-5 atmospheres. Freon’s pressure should be up to 20 atmospheres, so it is brought to the state of liquid, in which the refrigerant enters the external coil. Here, the heat of Freon’s heat in the contour itself is already taking place. Excess heat is immediately blown away by the fan of the external unit into the atmosphere.
  • Laified, cooled in the circuit, Freon reaches the heat regulatory valve, from where it goes into a smaller tube and goes to the inner block with a temperature of 15–20 degrees. Copper from which the tubes of freonores and coils are made, more actively than brass and steel, conducts heat. So that the cold is not lost, this tube is reliably isolated by foam or foam, poorly conducting heat.
  • Having reached the inner block, the freon passes through the compound fitting and enters the coil with the radiator, similar to what is in the outer block. Freon evaporates and completely goes into a gaseous state, reducing its working pressure to 3 atmospheres. The circuit cools up to 0 degrees and below.
  • The resulting cold is immediately blown into the indoor air with a fan that draws warm air from the room through the entrance slots in the upper part of the inner block. From the ice radiator, air is blown into the room through other cracks. it passes between the curtains of the blind clock. Its output temperature is 5-12 degrees of heat.
  • Having thrown off the cold, Freon passes the coil of the inner block, passes through the output of its fitting and rushes into a copper tube of a larger diameter. already in a gaseous state. And although Freon himself will be heated due to the heat taken from the room, the manufacturer also recommends that the manufacturer recommends packing in the heat insulator, not allowing Freon to heat up to the temperature of the street heat (up to 58) before it reaches the compressor entrance. This saves the resource of the compressor itself, which does not need to compress the overheated freon longer and up to 40 atmospheres. The consumer gets rid of the expansion of money for electricity.

Nuances of various types

The split system is executed in wall, channel, column, floor, multi-split and cassette-volume options. External block. general, the number of internal blocks may differ. The complex of all options is channel air conditioning: it requires the installation of closed supply and exhaust channels that are not communicating with the street. Multispute system needs a tree-like “track”-here the external unit works on several internal. The column and floor air conditioners are placed on the floor in the corner, but the “track” is significantly lengthened. the external unit cannot be hung at an altitude of less than 2.5 m. Cassette is composed in installation due to disassembling sections of the suspended ceiling at the site of installation of the inner block.

However, all split systems work the same.

The principle of operation of the design of any variety is similar. In summer, the internal block is freezing, the outer. drops its heat outside the building or building. Models equipped with air fence from the street are rare.

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