Air conditioning type split system. Features of internal units of split systems, their sizes and fastenings. What is the difference between an inverter air conditioner?

Summer can be hot, or it can be stuffy and humid. In any case, you will need air conditioning. You should think about buying it in April-May, while there is no general excitement. What types of air conditioners are there? What kind of air conditioner do you need?

Do you think the answer to this question is obvious? This is true, but only at first glance.

1. Many modern air conditioners work not only in the direction of cooling, but also in the direction of heating the air. So, they could easily be called radiators.

2. An unobvious advantage of modern air conditioners is air filtration.

3. Air conditioners lengthen your work time by eliminating temperature inconveniences (remember how difficult it is to work in the heat!).

4. Air conditioners allow you to keep the collars and cuffs of light-colored shirts clean longer (if your partner has a snow-white shirt collar, you can rest assured that he has excellent air conditioning in his office).

5. Finally, an air conditioner is an indicator of a certain level of well-being of its owner. The light breeze that your guest feels gives him a subconscious feeling of flight.

Invention of air conditioning

In his modern form Air conditioning first appeared in 1902 in New York. It was developed by American engineer Willis Carrier in 1902. It was an industrial unit for regulating temperature and humidity in a Brooklyn printing house in New York.
However, the prerequisites for creating an air cooling system arose back in 1754, when Swiss Leonhard Euler, an honorary member of the St. Petersburg Academy of Sciences, developed the theory of a fan.

Air cooling principle

The air in the air conditioner is cooled by passing it through a circuit consisting of tubes filled with refrigerant gas (freon, ammonia, etc.). Moving through the tubes of the circuit, the refrigerant takes heat from them, and they, in turn, take heat from the air. The heart of the air conditioner is the compressor.

Effect on air humidity

While cooling the air, the air conditioner circuit tubes condense moisture on themselves. If it is not entirely clear to you this process, try turning on cold water in your bathroom. Within a few seconds, the faucet will fog up, and later become covered with droplets of water (dew) - this is how the moisture contained in the air of your home condenses. In modern air conditioners, condensed moisture through drainage tube discharged to the street, or using a pump - to the sewer.

Some air conditioner sellers advertise this feature as an advantage. However, this is not always justified. Air overdried by air conditioning causes headache; Some indoor plants may die. This factor should definitely be taken into account when purchasing and installing an air conditioner.

Air filtration

Many modern air conditioners filter the air. This function is always useful, no matter what your living conditions are. Air conditioners are equipped with special filters, the number of which varies different models unequal. Models with big amount filters provide multi-stage air purification. Filtration protects not only your lungs, but also the air conditioner itself from contamination.

The noise of an air conditioner

Different air conditioners produce different sounds when operating. Best models air conditioners operate almost silently. When purchasing an air conditioner, be sure to check it for noise during operation. Your comfort in the future will partly depend on this: after all, it’s difficult to talk with a noisy air conditioner. The noise forces the TV to turn up louder, which leads to worsening relations with neighbors. Split system air conditioners can be considered the quietest (read more about split systems below). The noise level of indoor units of split systems does not exceed 30 dB (for comparison, a person’s whisper is 20 dB).

Air conditioner power: approximate calculation

You can make an approximate calculation of the required power of the future air conditioner yourself. For every 10 square meters, 1 kW of air conditioning power is required (with a ceiling height of 3 m). 100 W should be added for each person living in an apartment or house. 200 W for frequently used household appliances. And at least 700 W for any stove or oven. If the cooled room is located at sunny side, this also serves as a factor requiring an increase in the design power of the air conditioner.
If the power of your air conditioner turns out to be insufficient, this will lead to two negative consequences: firstly, you will not receive the expected comfort, and secondly, the air conditioner will work at the limit of its capabilities and will fail faster. Fortunately, the price of an air conditioner does not particularly depend on its power.

Types of air conditioners

1. Split system

Recently, so-called split air conditioning systems (from the English split - to separate) have become widespread. These are split-type air conditioners, some of which are installed outside the building, and some inside. The main working part, including the compressor, fan and heat exchanger, is left outside the home. Only a presentable unit with a remote control is mounted indoors. To connect the two parts, a through hole is made in the wall. Most of these systems are also suitable for heating a room, but in severe frosts (below 15°C) they are not recommended.

Typically, split systems do not supply air from the street. They clean and cool internal atmosphere rooms. Air filtration systems in some air conditioner models involve not only removing dust, but also removing odors, killing bacteria and even ionizing the air. However, for oxygen to enter, the room should still be ventilated periodically. The split system is the most convenient, economical and silent type of air conditioner.

Like most air conditioners, the operation of a split system is tied to the air temperature in the room. As soon as the air cools, the system automatically turns off. However, this principle cannot be called optimal. The fact is that when turned on, the system consumes more energy, and frequent shutdowns and starts shorten the service life of the air conditioner and place additional load on the electrical network. Therefore, in modern and expensive models the compressor does not stop, but only changes speed. This saves energy and extends the life of the air conditioner. Such models are called inverter. We recommend that you pay attention to them first.

All modern models of split systems are controlled using a remote control. Control involves setting the desired air temperature, switching air conditioner operating modes, and changing the direction of air flow. Some models are equipped with a timer with presets that allows you to maintain the desired temperature in the absence of people (or when they arrive). Very useful function is the operation of the air conditioner in night mode. As you know, during the night the air temperature in the room decreases. Therefore, in the evening the air cooling should be stronger than in the morning. This is exactly what an air conditioner with night mode provides. Thus, you protect yourself from hypothermia and sudden colds.

Multisplit system

Along with monosplit systems, there are multisplit systems. These are systems that also have one (but more powerful) external unit and several internal ones. Multi-split systems are designed for air conditioning large areas with many rooms and partitions. The cost of multisplit systems is significantly higher than monosplit systems.

The main disadvantage of split systems is their expensive and complex installation. Its cost can reach up to 20-30% of the price of the system itself. However, such costs are fully justified in the future.

Types of internal (room) units of split systems

Wall blocks. They are small in size, but are capable of cooling rooms up to 60 square meters. m. Wall-mounted units are equipped with mono- and multi-split systems, models with cooling only and models with heating, as well as inverter models. The average power of air conditioners with a wall-mounted unit is 1.5 - 7 kW. As a rule, wall blocks are made in a modern design and easily fit into any interior.

Floor-ceiling blocks. These indoor air conditioner units are fixed in one place (on the wall or ceiling) and cannot be moved. They are designed for large rooms and have a power of 7 - 15 kW. The design of floor-ceiling blocks is designed to make them as invisible as possible on the ceiling or floor. The main advantage of ceiling blocks, in addition to power, is that they practically do not take up space and do not interfere with anything. But they are inconvenient to wash and replace filters. In this aspect, floor blocks are much more convenient. Ceiling blocks, due to their power, are used mainly in work areas (offices, beauty salons, canteens and cafes).

Cassette and channel blocks

These are real ventilation systems. Typically, these types of units are installed in office centers and large stores. From the outside they look like ceilings ventilation grates. As a rule, cassette-channel blocks are mounted together with suspended or decorative ceilings. Main feature is the ability to distribute air flows in several directions at once. And duct blocks also provide an influx of fresh air from the street. One channel block(precisely thanks to the distribution channels) can be enough to cool and ventilate the entire apartment or floor of the house. The power of air conditioners with a duct or cassette unit can vary from 4 to 17 kW.

2. Floor standing air conditioners

These air conditioners are a single floor-standing mobile unit, including a compressor and a cooling circuit, and curtains to direct air flow. Hot air from such a monoblock it is pulled out into the street using a hose. The length of the hose is usually 1.5 - 2 meters, the diameter is about 10 cm. To remove the hose, in a window or balcony door Usually a hole is made. Sometimes the hose is connected to the ventilation hatch.

What is the advantage of such a system? She is as mobile as possible. You can bring it to your dacha and use it rented apartment, easy to take with you when moving. Modern design makes a block of such an air conditioner stylish element interior (high-tech). Monoblocks are equipped with a chassis for ease of transportation. Some monoblocks also work as heaters. This air conditioner is controlled from the front panel of the case or via the remote control. The mobile all-in-one can also filter air, depending on the model.

The disadvantages of a monoblock include:

1. Increased noise (after all, the compressor is not located on the street, but directly indoors);

2. The need to manually remove condensate (moisture deposited on the tubes of the cooling circuit is not discharged to the street, but flows into a special pan).

There is also combined option floor air conditioner - mobile split system. Its compressor and fan are placed in a separate unit, which can be placed on the balcony. And the indoor unit is installed in the room on the floor. This principle serves, first of all, to reduce the noise level of an operating air conditioner.

The total weight of monoblocks of both types varies in the range of 20 – 55 kg.
Average power: 2 - 6 kW.

3. Window air conditioners

This is essentially yesterday's conditioning. However, they are still in some demand. That's why even companies such as Mitsubishi, Panasonic and Fujitsu produce them. Window air conditioners are installed in wooden frame window. To do this, part of the window is simply cut out. If the frame is double-leaf, then the second leaf remains functional. Another way is to install the air conditioner in a hole in the wall (if there is one). In this case, two problems are solved at once - cooling the room and masking the hole.

Most modern window windows have a quite presentable appearance and operate quietly. By inheritance from their bulky predecessors they inherited two undeniable advantages:

1. They can pump you up Fresh air directly from the street (which allows you to remove unpleasant odors or tobacco smoke);

2. Condensed moisture flows out without any problems.

Some window models also work for heating. However, they have a limitation in their operation when low temperatures air outside the window: at -5-7°C, the window air conditioner may fail. The exception is White-Westinghouse window air conditioners, manufactured specifically for Canada and Russia. But energy saving in such models leaves much to be desired.

Modern models window air conditioners controlled using a remote control. Economy class models - manually. The air filtration function is available in most models, but it is not perfect everywhere. The power of window air conditioners is usually from 2 to 6 kW.

An air conditioner is usually purchased for several years in advance. Therefore, when doing so, you should be especially careful. We hope that our article has helped you better understand which air conditioner best suits your needs.

If you have any questions about choosing the type of air conditioner or installing it, write in the comments and we will definitely try to help you!

Modern types of air conditioning systems are divided into various categories and subcategories according to purpose and type of design. The abundance of species is not at all marketing ploy, wide choose will allow you to select an air conditioner or air conditioning system that fully meets the user’s needs.

The classification of air conditioners begins with the purpose or place of use of the device. Initially, all modifications are divided into:

• household;
• semi-industrial;
• industrial (production).

To class household appliances (RAC) include all split and multi-split systems whose power does not exceed 5 kW - these are the air conditioners recommended for use in an office or apartment small area. The advantages of such systems lie not only in their reasonable cost: their external design does not harm the interior, and operation does not cause difficulties.

Semi-industrial category(PAC) includes split systems of all types with a power of at least 5 kW. This class also includes air conditioning systems when several internal modules of any model, including duct ones, are connected to one external unit.

It is rational to install devices of this class in private houses, cottages, adjacent offices or large apartments Oh.

The average power of the external module will allow you to cope with servicing several rooms, offices or large areas without loss of efficiency. The external unit is mounted on the facade, or installed on the roof of the building, if technically possible.

Production or industrial group contains all versions channel systems more powerful than 30 kW, as well as cabinet units of various capacities. Equipment with such characteristics is intended for large areas - warehouses, work shops, exhibition halls, where it is not the external design of the system that plays an important role, but its performance.

Variety of air conditioning systems

Varieties of air conditioners contain many types and subspecies, which often leads to confusion. It is optimal to systematize all this diversity by type of installation and consider options for designing air conditioning systems.

It is important to understand the operating principle and purpose of various modifications. Expert recommendations are based on rational use air conditioning systems, which increases their service life and guarantees the expected result.

Structurally, devices are divided into two main categories:

• single-block (monoblock);
• split systems.

Single block air conditioners- This is a single unit that transfers air from indoors to outdoors. In some cases, the device is connected flexible hose for air venting. These are noisy units large sizes, depending on the modification, they are installed in the window opening or used for production areas.

is a pair of indoor and outdoor modules. Inside the external unit there are the main sources of background noise - the fan and compressor. It is mounted outside, most often on the facade of a building. Interior The system is connected to the outside by several pipes, its housing contains filters, and, depending on the modification, control buttons and temperature sensors may also be located here.

Specification of split systems

Split systems or multi-systems are not a specific model, but a whole class of air conditioning equipment, internal modules can be of any type.

All types of split systems, due to their low cost and simple installation and operation, have become widespread among the population and business. They are used at home, installed in administrative or semi-industrial premises of various sizes. The advantage of the two-block design is ease of control, aesthetic appearance of the internal units, as well as comfort, because they are almost silent.

Despite the fact that only specialized organizations are engaged in servicing systems, the high demand for these services guarantees a low cost of work or repairs.

What types of split systems are there:

• standard;
• inverter;
• "multi" systems.

Standard systems- This is a simple two-block design. Each pair of modules is connected to each other by a freon line of two to three tubes. The systems are easy to use and maintain a constant temperature by switching on and off alternately.

Inverter models differ in their operating principle - this technique supports user installed temperature by changing the frequency of the compressor. Simply put, the system allows you to smoothly regulate the intensity of the air supply; when a given degree is reached, the air flow speed decreases. Technical feature An inverter air conditioner does not require regular switching on/off, which makes it 30–35% more economical than the classic version.

Multi-systems more difficult to install than others and require special attention when designing. Unlike classical system air conditioning, here the external module acts as a pair to 2 - 5 internal ones, supporting the installed temperature regime in several rooms at the same time.

The disadvantage of multi-systems is the absolute dependence of all indoor modules on one outdoor module, where the main and only compressor is installed. If it fails, all rooms will be deprived of cooled air. The second difficulty is laying separate lines to each internal module.

Classification by installation type

For various types of split systems, one of the modifications of household-grade air conditioners is selected.

Monoblock versions of air conditioners

Single block or monoblock types air conditioners are divided into several types, among which there are models for home and production premises. From the outside, air is forced into the unit during fan operation; inside it is cooled and directed into the room.

Monoblocks are structurally simpler, which explains their lower cost, but there are also disadvantages: large dimensions and obvious background noise. There are three main types of such air conditioners.

1. Window air conditioners are installed in bottom part window opening or into a wall. This is the most affordable and primitive type of air conditioner, designed for home or work space. Window versions are cheaper than others, but are not without typical inconveniences such as loud noise and big size. During installation in the opening, it becomes necessary to reduce the window and glazing area, and installation with double-glazed windows will require large labor costs.
2. Mobile Air conditioners come in two types. Mobile monoblocks are a large module with a flexible air outlet that is installed on a plane, for example, on the floor. Mobile split systems differ from classical types: outdoor unit mounted outside the window and connected to the inside using a flexible air vent. In this case, the compressor is located in the indoor module, therefore, the level of background noise during operation will create discomfort.
3. Roof type air conditioning systems are a large unit installed directly on the roof of a private cottage or building. The system is led from the main unit to one or more internal modules (multi-system). These are powerful and efficient units that are used for air conditioning several rooms. Most often, rooftop models are purchased to organize VRF/VRV systems, but they can also be used for private houses or cottages.

Functionality of air conditioners of any type

For air conditioners, the functionality of the model comes in second place, after the area of ​​use. If the first models were simple devices, then modern versions can have a fairly solid set of useful options.

Air cooling is a basic function of any air conditioner, but in practice it is required only in the warm season, and for many regions - several times a year. Thanks to special properties

freon, air conditioners can not only cool, but also increase the air temperature. Heating is not present in every model, but this option allows you to use the device in the cool off-season: spring or autumn.

There are other convenient features that you should look for when choosing an air conditioner. As a rule, their presence is indicated in the description of the device.

1. Option "automatic" stores the last few settings in memory and plays them back at the touch of a button.
2. There is another useful option - “ night", the air conditioner automatically switches to night mode, reducing compressor noise or regulating air temperature.
3. Filtration systems – separate area any air conditioner for home. First of all there are different kinds filters: nano-charcoal, bio-filters, with silver ions or vitamin C. All this, to a certain extent, increases the usefulness of the device.

Understanding what types of air conditioners there are, the user will be able to make right choice at the time of buying. It is enough to clearly define for what purposes and premises a device or air conditioning system is required.

Split system is the most popular type of air conditioner; affordable prices And a wide range of allow you to choose a split system for an apartment or cottage, office or small store. The advantage of air conditioners of this type is the simplicity of design and installation: two blocks, internal and external, connect freon route, passing through the wall, which allows installation in almost any room. However, choosing the right split system is not as easy as it might seem at first glance; To do this, you need to take into account both primary and secondary parameters.

Main characteristics of split systems

The first thing you need to decide when choosing an air conditioner is whether it should work only for cooling or also for heating. Split systems of the second type are more expensive, but they allow you to survive the off-season without any problems. central heating is not turned on yet, and the air temperature is already quite low (but remains positive). Many air conditioners have an air heating function - for example, in the catalog of the Foxtrot online store you can find several dozen such models.

How well the split system will cope with its tasks depends on the cooling and heating power, which is noticeably greater than consumed - on average, 2.5-3.5 times. The EER (Energy Efficiency Ratio), which expresses the ratio of cooling power to power consumption, indicates the energy efficiency of the air conditioner; the higher it is, the less electricity the split system will need to create a comfortable microclimate in the room.

Inverter air conditioners: convenience and reliability

Cooling capacity is the most important criterion when choosing an air conditioner. The generally accepted formula “per 10 m2 should have 1 kW of power” is approximate - in fact, it is necessary to take into account a combination of factors: climatic conditions region, thermal characteristics of the building, ventilation features, presence of heat sources in the room (household or office equipment, people, animals).

The more competently the air conditioner is selected, the longer it will last: if you buy a split system with a power lower than required, the compressor will work almost non-stop and will fail prematurely, and a split system that is too powerful, on the contrary, will often turn on and off - which will also not work for her benefit. Such problems do not arise with inverter split systems, in which the compressor power is smoothly regulated, which allows not only to save electricity and engine life, but also to maintain the set temperature with a high degree of accuracy. The cost of an inverter air conditioner is higher than a conventional one, but the ease of operation and low level noise fully justify this difference.

Additional functions and features

Many split systems have almost the same basic parameters, but their auxiliary characteristics may differ, and each of them is important in its own way. When choosing an air conditioner in the Foxtrot online store, you can set criteria such as the possibility remote control, the presence of night mode and turbo mode, functions of automatic restart, self-cleaning, dehumidification and air ionization, and also indicate the type of filter. Those who care not only about their own health, but also about the environment, should pay attention to the refrigerant used in the air conditioner: recently, many manufacturers have begun to use safer freons that do not destroy the ozone layer - R-407C and R-410A.

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Air conditioning is one of the main conditions for maintaining optimal conditions indoor microclimate.

Therefore in modern world imagine any room without climate control equipment practically impossible, especially if we're talking about about zones general purposes, offices, retail outlets, establishments Catering.

Today on the market is huge assortment climatic equipment with different performance indicators and functionality.

Classification of split systems

According to the characteristics of their operation, air conditioners are usually classified into several groups:

Wall. The most popular type of air conditioners, which is used in residential premises. The system consists of external and internal blocks. The compressor is taken outside the room to minimize noise from its operation.

In this case, the indoor unit can be installed absolutely anywhere in the room. Disadvantages in use are the complexity of installation work, as well as the possibility of freon leakage.

Cassette. Consists of external and internal blocks. They are connected to each other by a line filled with freon. Installation feature indoor unit is that it is placed behind a suspended ceiling.

Advantages of use: quiet operation, the ability to use in any interior without disturbing design solutions, fairly uniform air distribution, good efficiency indicators.

Duct. High power air conditioner that can short period time to cool or heat the air in rooms with large area. Its installation is economically feasible for large apartments or office premises. The indoor unit and equipment air duct system are installed in the inter-ceiling niche, which allows air to be evenly distributed throughout the entire space.

Pros: hidden system air conditioning, one outdoor unit can serve several rooms or premises at once.

Disadvantages: increased cost of equipment due to the additional installation of an air duct system; installation of an air conditioner is only possible if there is a suspended ceiling and free space for installing equipment in a niche between ceilings.

Columned. The equipment installation method is floor-mounted. The air conditioner is made in the form of a column that looks like a refrigerator. Column type equipment has high performance and power, so it can serve large area or even several rooms.

Pros: easy installation.

Cons: installation is only possible if there is a large free space, heavy weight designs, unattractive appearance, which is difficult to fit into the stylistic picture of the room design.

Ceiling. Ceiling type air conditioning equipment has an indoor and outdoor unit. A prerequisite for installation is to install the indoor unit under the ceiling.

Pros: convenient and quick installation, high performance indicators.

Cons: communications are not hidden from view, so they can disrupt stylistic design premises, high cost of equipment.

Classification of split systems by compressor type

There is another type of classification of split systems, which is also worth paying attention to when choosing equipment - this is a classification by compressor type.

Depending on the compressor used, the operating principle of air conditioners can be non-inverter or inverter.

Non-inverter split systems

The air conditioner's special feature is not inverter type is that after the system starts, special sensors begin to measure the air temperature. If it turns out that this temperature does not correspond to the system set by the user, the compressor is turned on at full power. When the temperature reaches the set temperature, the compressor automatically turns off. This cyclical operation is observed throughout the entire period of operation of the equipment.

The advantage of split systems with a non-inverter operating principle is their low cost.

Disadvantages of the system:

• wasteful consumption of electricity;
• impossibility of using the system at sub-zero air temperatures ( outside air must be no lower than minus 5 degrees Celsius);
• the occurrence of drafts in the room.

Inverter split systems

A feature of inverter-type systems is the constantly changing compressor rotation speed, which is achieved thanks to smooth adjustment depending on the ambient temperature.

The inverter type compressor operates at high power only up to a certain stage, and after reaching the desired air temperature, it reduces the rotation speed, which leads to the absence of a mode of constant switching on and off of the unit.

System advantages:

• constant maintenance of temperature at a given level;
• rapid cooling or heating of air;
• high reliability indicators;
• low noise level;
• saving energy use;
• possibility of using the equipment for outside temperature up to minus 10 degrees Celsius (the drainage system must be discharged into the sewer system or additional heating of the drainage system must be installed).

Disadvantages of the system.

Many of us use similar equipment at home, but hardly know what a high-quality split system is. Our review will help you find out what it is in more detail. This design is not exactly an air conditioner; it has several differences. Split system produces air conditioning air flow. Let's find out together how this happens and what types of technology exist.

Splits are important element any interior

A powerful split system (what it is can be understood after familiarizing yourself with the design of the device) structurally includes two parts. The inner one represents the evaporative element, and the outer part compressor-condenser. The external element is fixed on the facade of the building, and the internal element is fixed in the room itself. Internal elements may vary in location. Both blocks are connected using thin copper pipes. The compressor is the “heart” and the noisiest part of the system. That is why he is being taken out of the building.

Nuances of the split system air conditioner

The principle of operation of a split system device is to remove warm air masses to the street. Such equipment not only has a cooling effect, but also a heating effect. Warming up is done in reverse order. Freon evaporates during external element, and condensation occurs in the indoor unit.

The external element is placed outside the space that is being cooled. It contains elements such as a capacitor, compressor, receiver, control board, and power switching relay. Installing the mechanism outdoors allows you to get rid of the sounds produced. The possible noise level in the apartment is 25 dB.

1-compressor; 2-four-way valve; 3-heat exchanger-condenser; 4-sound insulation; 5-fan; 6-casing; 7-output grid; 8-two-way valve; 9-way valve; 10-pallet; 11-drain pipe; 12-heat exchanger-evaporator; 13-tangential type fan; 14-grid; 15-input filter; 16-guide blinds; 17-leaf; 18-faceplate; 19-LEDs; 20-temperature sensors; 21-control board; 22 circuit board; 23-remote.

The internal design works for cooling, heating and filtering air masses. Thin tubes connecting structural parts can be mounted in suspended installations, in special grooves or in laid cable channels.

Helpful information! Many of the latest models are complemented by the following functions: cleaning filters, special timers, an air ionization mechanism, and a device for maintaining temperature.

Types of split air conditioning systems for apartments

Now you know what a split system is: it is an air conditioning device that has several design options. Let's look at the main types of devices.

Wall equipment

Wall-mounted equipment can be presented in various designs. Such devices are mounted on outside walls. This option is especially convenient, since all bulky elements are taken outside. Currently, this is the most common split option. Such models provide maximum heat and cold output. They have the following advantages:

• excellent assembly;
• blocking the pressure device;
• a compressor operating with drainage heating;
• system of brake elements;
• intelligent program that sets the optimal temperature regime.

Duct and ceiling models

Ceiling and floor split systems for heating and cooling are used in rooms that have an oblong shape. Strong currents of air masses pass along surfaces and are distributed throughout the entire space.

In the case of a duct device, the internal element is mounted behind a suspended ceiling. For such an installation, about 36 cm of the inter-ceiling area is allocated. Air is drawn out of the room and penetrates back through. A quarter of the air coming inside is a fresh stream saturated with oxygen. Ceiling structures used in small spaces.

Which option to choose for large rooms?

Cassette-type devices are suitable for very large rooms with suspended ceilings. To install a complete structure between base ceiling and the decorative space must be at least 25 cm. All internal mechanisms are located behind the suspended structure. Only the decorative grille remains visible. The air passes through the grille and then, after being processed, passes through the louvres and is distributed in four directions.

If suspended structures are missing, then the device will do column type. Such units provide a powerful stream of air, which moves towards the ceiling and then moves across the entire area. Such structures provide about 10% fresh air.

Multi split system

It is important to consider the characteristics of split systems various types. For example, a multi-split design includes several indoor units. It is in demand for installation in several office premises, for residential buildings with several floors and for large shops. In this case, only one block is placed outside. Such equipment is more expensive than alternative options.

Setup and management

You can purchase an inverter split system. This mechanism allows you to transform D.C. into variable. Thanks to this, air conditioning can be carried out without interruption. The inverter allows you to smoothly regulate the operation of the unit. The device is equipped with many sensors and an additional microprocessor. During operation of such a device, the temperature regime is constantly maintained, since there is no shutdown during heating and cooling.

Control is performed through the following modes:

• cooling main task similar design. To transfer cool air into the room, 1 kilowatt is spent in exchange for 3 kW of cooled air. Temperature reduction is possible to a certain norm. The maximum cooling limit is +17-18 degrees. A flow of cold air comes out of the indoor unit and evenly cools the room;
• For the heating function in splits, a reverse movement cycle is implemented. The reverse process occurs - cold air masses move outside, and the heat is coming into the room. When installing such a unit, it is better to pay attention to models with heating elements. It is worth considering that such equipment consumes a lot of electricity;
• The dehumidification function can be used. At the same time, it is removed from the cooled air excess moisture. It is known that the heat from high humidity It is difficult for people with blood pressure and heart problems. The drying mode removes water molecules but does not change the temperature;
• the ventilation mode ensures the circulation of air masses in the room and their cleaning;
• An important function is carried out using an air-mechanical filter. This mechanism must be periodically vacuumed and washed. More expensive models have a filter fine cleaning. Carbon filter allows you to clean the air from odors and tobacco smoke.

Splits are also equipped with many additional functions. For example, a sleep timer ensures optimal temperature conditions at night. Automatic mechanism for moving vertical and horizontal blinds regulating air flows. There is a timer to turn the structure on or off at any desired time.

The table shows prices for some models.

Image	Model	price, rub.
	General Climate GC/GU-S09HRIN1	15000