Split systems are installed for air conditioning residential premises and administrative buildings. various types and types. A split system is a device consisting of two blocks: external and internal. The first is taken outside, the second is installed in the room. Both modules are connected to each other by a copper pipeline through which the working gas (freon) circulates, and by electrical communications.

Types of split systems and types of indoor units

Species is a more general concept that applies to technical devices climate control regarding their purpose for certain buildings. The type has a narrow semantic focus, which means some feature of the structure or design.

Split systems are divided into both types and types. There are two types of two-component installations: domestic and commercial or semi-industrial. The former are installed in apartments or small offices, the latter in shops, hairdressers and other similar establishments.

All split systems are divided into types regarding the design and design of the indoor unit:

• wall;
• cassette;
• columned;
• channel;
• floor-ceiling.

Each manufacturer produces split systems with different types of indoor units, completing them with certain functions and a standard set of operating modes, which include cooling and ventilation of the air available in the room. It is the parameters of this part of the system that justify the choice of buyers.

Regardless of the dimensions and external design, any room module consists of:

• heat exchanger (evaporator);
• fan;
• air distribution grille;
• input filter;
• blind guides;
• front panel;
• LEDs;
• temperature sensors.

Fine filters, winter kit and others additional elements available as an option at the request of the customer. The composition may include a mounting plate if the unit is wall-mounted. Operating parameters are set from the remote control. Some models of expensive equipment have the ability to control functionality via the Internet, from a phone or from a central controller.

Operating principle of the indoor air conditioner unit

In general, cooling looks like this: to absorb heat from a room and release coolness, the indoor unit fan draws heated air from the room, after which the process of absorbing heat by the refrigerant begins as it passes through the cold coil.

The refrigerant is a liquid gas (freon), which cools the air. Essentially, it is a heat transfer agent. In the process of transferring cold to the air and taking heat from it, it changes its state, that is, it evaporates. This happens in the heat exchanger of the indoor unit. Here, freon passes from a liquid state into a gaseous state. He took away the heat, the air cooled and flows through the fan back into the room. The heat removal process is already underway outdoor unit.

To put it simply, the role of the internal module is to fence warm air, cooling it and releasing it back into the room. When the device operates for heating, it, on the contrary, becomes a heat conductor, exchanging functions with the outdoor module. All types of indoor units operate on this principle.

Wall-type indoor units and their sizes

wall indoor unit

Household air conditioners include wall-mounted models - the most popular among buyers. They resemble a rectangle or square in shape, like LG wall-mounted appliances from the ART COOL GALLERY series. They are hung on the wall in a place convenient for the user so that the treated air does not escape into the person’s permanent residence.

Pick up required size the indoor unit of the air conditioner relative to the capacity of the room. Each manufacturer has a line of large, standard, and even smaller climate control devices.

The concept of the size of the indoor unit of the air conditioner includes the following values:

• height;
• width;
• depth.

The minimum height can be about 24-25 cm, width - 70-74 cm, and depth - 18-19 cm. For example, the company produces a series of wall splits with an internal block depth of only 18 cm, which significantly expands the possibilities of installing such a device in various points of the room.

The maximum height of a wall-mounted room module can reach up to 30-32 cm, width - 110-120 cm, and depth - about 30 cm. For example, the MITSUBISHI ELECTRIC company produces a series of inverter splits with exactly these parameters.

If the indoor unit of the air conditioner has a non-standard design, for example, it is supposed to be located vertically in the room, then these parameters can vary greatly.

As a rule, air conditioners, and not only wall-mounted ones, have a direct relationship between the size of the indoor unit and its internal structure, or more precisely, on the size of the heat exchanger and the space for air blowing it. The smaller they are, the smaller the device, and the worse the performance.

Some manufacturers maintain normal performance while reducing size by increasing fan speed, but new disadvantage– increased noise. This is of paramount importance when choosing an air conditioner for an apartment. This trouble can also be avoided by reducing air flow. Although, in any case, a very powerful split cannot have a small internal module.

Today, some manufacturers have turned their attention to the production of non-standard room modules for wall-mounted splits. For example, in the ARTCOOL series LG offers square devices with the ability to change the picture on the case, and surprised everyone with the release of a vertical indoor air conditioner unit with non-standard air distribution in two directions, which is more typical for floor-ceiling models. The GREE company has been offering corner appliances for several years now, but they are difficult to find in Russia.

As a rule, buyers prefer both a vertical indoor air conditioner unit, a corner one, and a square one, either because of space saving or purely out of design preferences.

Semi-industrial air conditioners and their sizes

The remaining types of indoor air conditioner units are classified as semi-industrial equipment, but low-power models of such devices can also be installed in ordinary apartments.

The cassette module has a square shape and fits easily into the cell suspended ceiling. Its dimensions can be 600x600 mm or 800x800 mm, although some manufacturers produce a series of super compact cassettes with dimensions of 500x500 mm.

Along with cassette internal modules, they are sewn into a false ceiling (or wall) channel devices, which are a hybrid air handling unit and air conditioning. They not only cool the room, but can also freely update room air by mixing the street with the help additional equipment– air handling unit. For both types of these climate control units, only the distribution grilles are visible from the outside.

The only drawback is that they require at least 30 cm of space between the ceilings for installation.

Column air conditioners look like an elongated cabinet. They are placed in large rooms on the floor where large cooling capacity is required. Their dimensions significantly exceed the dimensions of any wall-mounted model, but this is a necessity, since it is impossible to achieve such power in any other way.

Floor-ceiling splits are quite compact and at the same time quite productive for rooms up to 100-120 m². Their internal block is shaped like modern radiator. They are easy to care for and use. The main advantage is that there are two ways to mount such an indoor unit: to the wall and to the ceiling. If the module is hung on the wall just above the floor, then the airflow goes in two directions, covering even the most complex and hard-to-reach areas of the room. That is why floor-ceiling models like to be installed in rooms with complex configurations.

Air conditioner specifications

Not only the design, but also specifications the internal unit of the air conditioner determine the purchase of one or another system. After all, depending on how correctly they were selected, the device will either work properly or quickly use up its potential.

What main technical characteristics are important when selecting an indoor air conditioner unit for a room? Let's look at the example of the LG air conditioner series ART COOL GALLERY.

For each manufacturer, this data may be supplemented by other parameters, so the technical characteristics of the indoor unit of the air conditioner are usually found either on the nameplate or in the user manual.

Conclusion: any indoor unit is endowed with cooling and heating power (kW), electricity consumption power (kW), air flow (m³/hour), as well as certain dimensions and weight.

With power consumption, the question is a little complicated by the fact that it may not be indicated specifically for the indoor unit. More often in the characteristics they write consumption parameters in general for a split system, while it consumes much less than an external device - on average 100-200 W.

Features of installing an air conditioner

The installation of a wall-mounted room module can be very diverse. Most often, the block is fixed to the right or left of the window and as close to the outside as possible so that the length of the route does not exceed the recommended length of 5 meters. If, if necessary, these values ​​are increased, then the main line is sewn into a groove in the wall or carefully placed in a decorative plastic box along with other connecting communications.

Other types of indoor units are installed in designated areas:

• duct- V suspended structure ceiling of the room or, to avoid noise, in non-residential premises– in the closet, corridor, restroom;
• cassette– in a suspended ceiling structure so that the airflow from the grille does not go to where people are, but to an unused area;
• floor-ceiling– on the wall 15-20 cm from the floor or on the ceiling in a place from where the air will disperse over the entire surface;
• columnar– on a flat, solid floor.

The indoor unit should not be exposed to direct rays of the sun, and any exposure to heat sources should also be avoided.

Indoor air conditioner unit on the loggia

Sometimes a customer may require installation of an indoor air conditioner unit on a loggia, explaining this by fear of catching a cold, limited space in the room, reluctance to trench a wall or have a long route packed in a box. Another reason for such a request may be the inability to find an area in the room that the residents would not use. This happens when there is a lot of crowding of people in one room.

Is it possible to install an indoor air conditioner unit on a loggia? If so, what requirements must be taken into account?

• Prevents warm air from entering through the window and the cracks underneath it. The glass is covered with thick curtains, and the walls are provided with airtightness;
• It is necessary to remove the door and window openings between the living area and the loggia so that the treated air can circulate freely throughout the entire area;
• They give preference to inverter models so that under heavy load (and it will certainly be with this arrangement of the device), the compressor does not work in a constant start-stop mode;
• The cold power is taken with a good margin, since to achieve 22°C in the room, the loggia will have to be set to 18°C.

Even when the required conditions are met, problems arise regularly. Firstly, the temperature difference will still be felt. Simply put, the loggia will be at the north pole, while the room will only become slightly cooler. Secondly, the potential of even an inverter will still be used up much faster.

Competent specialists will never advise installing an indoor unit from an air conditioner on a loggia, based on all the points listed.

Methods for attaching an air conditioner to a wall or ceiling

Depending on the type of indoor unit, there are two types of mounting it to the wall or ceiling. Household split systems are hung on mounting plates. This happens according to the following scheme:

• holes are drilled in the wall;
• dowels are inserted into them;
• the mounting plate is screwed on;
• An air conditioner is hung on it.

In this way, the indoor unit is attached to the wall only at wall models. Commercial modules are secured with special pins according to a different scheme:

• mark the places of fastenings on the ceiling;
• drill holes;
• insert collet fasteners;
• studs are screwed into them;
• a block is hung on studs;
• tighten the nuts.

It is worth remembering that installation channel systems with air ducts is carried out at the stage of construction and repair work. Other splits can be installed at any time.

Schematic diagrams of an air conditioner

For correct installation of the internal module, use the following principles: electrical circuits air conditioner, which indicate all inter-unit connections and their connection points. It is impossible to carry out installation without them, since there is no single scheme, and for different types The modules are completely different. The same goes for on/off and inverter splits.

Each manufacturer's diagram of an indoor unit of the same type can vary greatly, so they use only the one included in the manufacturer's manual.

Air conditioner maintenance and troubleshooting

Each split system needs regular maintenance, which involves cleaning the units from external and internal contaminants, as well as diagnosing faults and refilling with freon as necessary.

Is there any way I can clean the indoor unit of my air conditioner at home? Yes, this is real, but it is undesirable, since an inexperienced user can damage any part of the device. If, after all, it is not possible to call a technician, then the person must know how to disassemble the internal unit of the air conditioner in order to wash the filters, fan and heat exchanger.

First they shoot decorative panel, to do this, press the latches on the sides, and the housing cover comes off easily. Then carefully remove the filters, fan, condensate collection tray and rinse them under running water running water. The heat exchanger is wiped with a damp cloth, since it is a stationary part. After cleaning, all elements are wiped dry and installed back.

At the end of the article, you can watch a video on how to disassemble the indoor unit of an air conditioner and how to clean it without the help of specialists.

To carry out these actions, you will need a soft microfiber cloth and special foam for cleaning split systems.

Even if there are no problems with how to clean and disassemble the internal unit of the air conditioner, the user himself will not be able to carry out refueling and diagnostics, so he will have to call specialists who have professional equipment and materials.

In what cases may you still need the help of a specialist? The user should be wary of the following points:

• poor cooling;
• unusual noises and vibrations;
• block freezing;
• inability to turn on the air conditioner;
• The device goes into fault code mode.

Many users are interested in why the indoor unit of an air conditioner freezes and how serious it is. This sign indicates that:

• there is not enough freon in the split system;
• severe contamination of some working units and filters occurred;
• the device is used at an unacceptable temperature.

By measuring the operating pressure, the technician will immediately determine if there is actually not enough freon in the system. You can see the dirty internal elements yourself by removing the housing cover. Also, the cause of freezing of the indoor unit of the air conditioner can be a route that is too long, which the installers simply did not refill during installation.

If any deviations are noticed in the operation of any type of split system, you must immediately invite a specialist.

Greetings to all visitors to the Air Conditioner website! There are situations when you need to know the dimensions of the outdoor unit of the air conditioner. This question arises when the block is planned to be placed in a limited space. Sometimes these dimensions play a decisive role in the choice.

It happens that in the allocated space there is not enough space for free arrangement of blocks. Then you have to choose a different installation location or, for example, replace two external units with one (this will already be a multi-split system).

On the Internet by a certain model air conditioner you will find the characteristics where indicated dimensions blocks. But if you have not yet decided on a specific model, then you will need to know at least the approximate dimensions. Today we will try to determine the average dimensions of the outdoor unit, focusing on the characteristics household wall split systems.

What determine the dimensions of the outdoor unit?

The dimensions of the block body, of course, are determined by the dimensions of the component parts. The largest parts of the external unit are the capacitor (radiator) and. The size of the blocks depends on their performance. The more powerful the air conditioner, the greater the “capabilities” and dimensions of its main components.

It's no secret that air conditioners come in different cooling capacities. In most cases, there is a direct relationship between the cooling capacity and the dimensions of the unit (especially one line). But when comparing different brands or models, you may get different numbers!

Of course, the more powerful the air conditioner, the larger its parts, the larger the dimensions of the units. But now “splits” with inflated characteristics are appearing. To reduce the price, they are assembled from budget components, which hardly provide the declared cooling capacity. This is also why different brands may have significantly different dimensions for the same power.

Dimensions of the external unit of the air conditioner

If we consider the productivity of a “split” up to 2.7 kW, then the height of the external unit will be approximately 42-60 cm. On average, this figure will be about 50 cm. You may need the height of the bracket “foot” - usually 7 cm.

The width (without taps “protruding” beyond the body) is usually 66-80 cm. Taking into account my experience, I suggest taking the distance of 70 cm. The depth of small air conditioners is usually 23-30 cm.

Thus, we received the approximate dimensions of the external unit:

• height 50 cm;
• width 70 cm (note that the service taps “protrude” beyond the body by an additional 6 cm);
• depth 27 cm.

I will supplement these figures with the distance between the external block and the wall of the building - on average 15 cm. Taking into account this indentation, the external block will be located at a distance of 42 cm from the wall (cladding) of the house.

For clarity, we present the average dimensions of external units for household air conditioners in the form of a table.

Focusing on these figures, do not forget about the variety of climate control equipment. If you have limited space for the outdoor unit, then before purchasing the device, still check the dimensions for a specific air conditioner model.

You can ask additional questions in the comments!

The Split-S online store offers a large catalog of modern climate control equipment from leading manufacturers: Ballu, Carrier, Daikin, Dantex, General Climate, General, Fujitsu, Gree, Hitachi, LG, Midea, Mitsubishi Electric, Mitsubishi Heavy, Panasonic, Samsung, Toshiba and many others.

These are convenient and easy-to-use devices necessary to maintain desired temperature in room. The main advantages of such equipment:

• compactness and small size;
• wide range of functions;
• efficiency;
• ease of installation and management;
• different selection power;
• large offer of shapes and designs.

Types and types of household air conditioners

Such climate control devices are installed in Not large apartments, country houses and small offices. Based on the number of blocks, monoblock models and split systems are divided. If several internal devices, then these are multi split systems.

• Split systems are air conditioners consisting of two units - an external and an internal unit. Internal, usually wall-mounted, mounted indoors. The external one is placed outside. A connecting route of freon pipes is laid between the blocks and electrical connections. Household split systems are widely used for use in apartments, offices, cottages, small houses.
• Multi split systems are household air conditioners that consist of several indoor units and one outdoor unit. Internal ones are installed in different rooms, so that each of them can set its own temperature and other climate control parameters. Multi split systems are installed in large apartments or private houses and offices. One outdoor unit is installed outdoors.

How to choose the best household air conditioner?

Before purchasing climate control equipment, it is important to pay attention to the size of the room, the place where the indoor unit will be located, and what additional functions necessary.

Typically, the width of the indoor unit of an air conditioner is more than one meter. This is the standard. However, if the block is less than a meter wide, about 70 centimeters, then it can already be called small. There are also models with a width of about 50 centimeters, but they are completely unpopular, so we cannot say whether they are good or not. We have compiled a rating of the best and smallest air conditioners, which customers respond positively to.

The smallest split systems

1st place – Ballu BSWI-09HN1 ($396)

However, what is primarily worthy of attention is its dimensions – 70×28.5×18.8 cm. Therefore, it will fit perfectly into small room. As for the functionality, everything is in order here: there is an anion generator, an anti-ice system, an inverter! Definitely one of the best compact split systems.

2nd place – Ballu BSWI-12HN1 ($440)

For approximately $440 you can buy Ballu air conditioner BSWI-12HN1 – wall-mounted split system with inverter compressor. The productivity of the device is 7.5 m3/min, the cooling power is 3.3 kW and the energy consumption is 1 kW. This is a more powerful system compared to the previous model, which is also reliable and of high quality.

Despite the higher performance, the dimensions remain the same - 70x28.5x18.8 cm. With a width of only 70 cm, this model logically fits into our rating. And it takes second place partly due to the fact that buyers speak of it as an effective and reliable air conditioner. Of course, the device is worthy of attention.

3rd place – SUPRA US410-07HA ($267)

Excellent quality split system. The performance of this air conditioner is 6.33 m3/min with an energy consumption of 850 W.

The indoor unit has the following dimensions: 68x25x18 cm, and its width is 2 cm less than the width of the previous air conditioners in the rating. At the same time, there are many positive reviews about it, in which many buyers primarily note its compactness. The model also copes well with its intended purpose – air cooling – so we can recommend it.

4th place – Pioneer KFR20IW ($250)

For just $250 you can buy a compact and very good air conditioner from the manufacturer Pioneer. The model’s productivity is 8 m3/min, while the energy consumption is 685 W.

The dimensions of the indoor unit are as follows: 68×26.5×19 cm. Also noteworthy is the presence of a deodorizing filter and an anion generator. Of course it's not main criterion, but a very solid advantage.

Overall it's great budget air conditioner: It is quiet, has good performance, filters and is small in size.

5th place – Zanussi ZACS-07 HPR ($292)

Wall-mounted split system, designed for use in a room of 20 square meters. Its productivity is 7 m3/min, cooling power is 2100 W, energy consumption is 650 W.

There is a fine filter, a deodorizing filter, as well as an anion generator, which makes the model good decision for allergy sufferers. Its dimensions allowed it to be included in the rating of compact air conditioners - 70x28.5x18.8 cm.

The air conditioner is modern and beautiful appearance, works very quietly and does not interfere with sleep at night. It is also reliable, which is confirmed by the 3-year warranty from the manufacturer.

Small mobile air conditioners

Usually mobile air conditioners are small a priori. However, there are also quite large models with a width of more than 60 cm. We have selected the best compact mobile air conditioners with a width of up to 50 cm. Only those models that have positive reviews from customers were included in the rating.

1st place – Electrolux EACM-10DR/N3 ($412)

An excellent mobile air conditioner that will cost the buyer $412. This is a very productive mobile unit, designed for use in a room with an area of ​​24 square meters.

Its dimensions are as follows: 45×74.7×38.7 cm, and one of its main advantages is its small dimensions. It is worth noting that this is a rather serious model. There are two separate air circuits, thanks to which the cold performance is greatly increased. There are positive reviews about the model, so we put it in first place.

2nd place – Electrolux EACM-12EZ/N3 ($447)

Mobile unit with a capacity of 8.167 m3/min and a power of 3500 W in cooling mode. Compared to the previous model, this is a more compact air conditioner with dimensions of 43.6x74.5x39 cm.

This is a great model with good quality assembly, plastic and high performance. It is worth noting, however: some buyers complain about noise and the inability to regulate the air flow - these are its disadvantages. Perhaps the only ones.

3rd place – Electrolux EACM-12EW/TOP/N3_W ($342)

A mobile monoblock costs $342 and has the following dimensions: 43.6×79.7×39 cm. Its productivity is lower than the previous ones and is 4.83 m3/min. Perhaps that is why the cost of the model is lower. However, the air conditioner will provide a comfortable microclimate in a room up to 25 square meters.

High quality build and good materials, low noise during operation and complete equipment - these are its advantages. Perhaps this model cannot be called the most compact, but it still deserves attention as a small mobile air conditioner for the home.

4th place – Zanussi ZACM-09 MP/N1 ($370)

The manufacturer Zanussi is not lagging behind in terms of developing mobile air conditioners and offers us the Zanussi ZACM-09 MP/N1 model worth $370. The productivity of this model is small (5.4 m3/min), but it is quite enough to create coolness in a room of 25 square meters.

The dimensions are as follows: 35x70x32.8 cm. The air conditioner itself is receiving positive reviews, which is not surprising. This is a high-quality and reliable device from a Japanese manufacturer, which has proven itself well a long time ago.

5th place – Zanussi ZACM-07 MP/N1 ($335)

The only difference between this model and the previous one is performance. This mobile air conditioner creates air flow with a capacity of 4.9 m3/min and is intended for use in a room of 20 square meters. Otherwise, there are no differences. This is a compact and good mobile unit that will serve for many years.

Installing an indoor air conditioner unit is not easy to fit into the interior of the room next to the chest of drawers or above desk near the window. Often, the installation of an air conditioner is coordinated with the changes planned on the occasion of a complete redevelopment of an already existing house either an apartment or in a newly completed new building.

Relationship between power and unit dimensions

The owner of the household or the owner of the work premises knows exactly which air conditioner model will suit him in his particular case. The choice is made not only by the operating characteristics of the air conditioner (power, number of modes and other general and auxiliary functions), but also by the dimensions that the outdoor and indoor units must have.

Almost all household owners prefer a split system for its energy efficiency, high cooling output and the variety of split types available on the microclimate equipment market.

The dimensions of the indoor and outdoor units are the main factor affecting cooling capacity. For a small indoor unit it is unlikely inner circuit, through which the refrigerant, which acquires a gaseous aggregate state, circulates, will be large enough to produce, say, the same 15 kilowatts of power for the heat taken from the room. In a bedroom of up to 25 m2, a cooling power of 2.7 kW is enough to lower the temperature, for example, from 32 to 23 degrees in an hour.

However, in a small range of released cooling power - for example, 2.7 and 3 kW - air conditioner models of the same line may have the same indoor unit housing. This is due to the stock internal space, allowing you to place a slightly longer coil. In some cases, an increase in cooling power is achieved due to a slightly more powerful cylindrical propeller engine, which blows the cold just generated by the circuit into the room. But the speed of the fan, accelerated to full power, introduces additional noise in the cooled room. The diameter of the freon pipes remains unchanged.

Dimensions of the indoor unit

The typical length of a split system indoor unit is an average of three quarters of a meter. Rarity - a block 0.9 m long. Installers often measure an average length of 77 cm. The height of the block is 25-30 cm, the average value of 27 cm is often used. Depth (from the front panel to the wall) is 17-24 cm. Depth is not so important here. Practical (installation) length and height are 77x27 cm, which fits into the requirements for apartments.

The compact ceiling module, which often has a “flattened” shape at the top, has a quadratic design with a side of 50 cm to 1 m. If the block is ducted, then its main part is hidden in the ventilation duct. For column modules installed on the floor, the height is approximately 1-1.5 m, and the width and depth are the same as for small single-chamber refrigerators, for example, 70x80 cm. Because of this, column modules are not placed in small rooms.

Whether it is a large-, medium- or small-sized module, its placement principle may not change, especially for models of the same line. Split air conditioner increased power does not have an internal unit that is too small. And vice versa, a low-power split system does not need an overly spacious indoor unit.

Location

The indoor unit is located so that there should be no obstacles to the intake of heated air from the room and its delivery in a cooled form. For not quite standard or limited spaces the dimensions and location of the wall, floor or ceiling unit should not be to the detriment of the people who use such a room. There have been cases when, due to the architecture of the building, the ceiling block was placed on the wall or vice versa. The operation of the coolers does not depend on how it is positioned; the main thing is not to flood the electronics of the unit with water condensate formed during operation.

From time to time, specific companies develop their own approaches to the placement of indoor split system modules. Thus, Carrier presented a vertical unit with a side outlet of cooled air. Gree company offered corner air conditioners.

Such solutions are popular with owners of small one-room apartments constrained by a lack of space.

Examples of finished sizes

Yes, the company Gree the depth of the indoor module is only 18 cm. The length and width here vary respectively within the range of 70-120 and 24-32 cm.

U Mitsubishi air conditioners have the following dimensions: 110-130x30-32x30 cm. These dimensions are taken for a reason: for high-quality airflow, the radius of a cylindrical fan must be at least several centimeters, and its length must be at least 45 cm.

Chinese air conditioners from the company Ballu– the smallest systems. Model BSWI-09HN1 has a block with dimensions of 70x28.5x18.8 cm. Model BSWI-12HN1 is similar, differing only in a slightly larger external block, the size of which is not particularly important for the internal living space.