Today, split systems are used to maintain a favorable microclimate in premises. They consist of two parts: an external and inner block. The outer air conditioner unit is key to quality equipment. Let's break in its device, principles of work and features of installation and maintenance.
The external unit split system is referred to as the compressor condenser unit (CKB). This is a key element of climatic equipment, which provides cooling or heating by changing the refrigerant state (working substance). The CKB is a housing in which:
The outer air conditioner unit is connected to the equipment in the room through the freon (thermal insulation copper) of the highways. From the inner block to the exterior there is a drainage highway.
The CKB body is made of galvanized steel.
A number of CKB models are equipped with a special "winter set". It is designed to maintain the efficiency of the device in winter time years for low temperatures. Winter set works only for cooling, so optimally suitable for installation in server and other rooms with high levels heat dissipation.
It includes the following items:
The general principle of operation split system can be described as follows: warm air is removed from the room and the warm air is removed, the cooled air is supplied in the opposite direction, which loses temperature passing through the air conditioner and contacting the refrigerant.
When switching mode, the split process of the heating system takes place. The external block absorbs the cold air from the outside and raises the temperature to the desired level. The internal unit feeds the heated air into the room.
KKB works at the expense physical properties refrigerant, which transmits energy when changing the aggregate state.
The outer air conditioner unit works as follows:
When choosing and buying an external block of split system, you need to pay attention to four main characteristics:
The dimensional dimensions of the external blocks depend on the power and functionality of the equipment.
The average dimensional characteristics of the outer block of the split system:
Models that are offered on the market may have different power. It all depends on the purpose of the equipment. Standard household split The system has a power that allows you to cover the space of up to 100 square meters. m.
An important characteristic of the external block is noise. If the air conditioner will work without noise, then the external unit can deliver significant inconvenience to neighbors. When the model is selected, it is better to clarify the noise indicator when the external block is running. Permissible indicator 32 dB.
It is necessary to pay attention to the permissible length of the connecting highways between blocks.
It is impossible to exceed the distance that is stated in the model passport of the model, since this may lead to a serious reduction in the efficiency of the equipment.
Installing an external block implies several stages. At the first stage, the installation site is determined, equipment and tools are preparing. At the second stage, markup and direct fixation of the equipment are performed. In the third stage, measures for testing performance and testing are manufactured.
Constructions of modern buildings ( apartment houses, shopping and office centers) provide for the installation of air conditioners and split systems. This moment is laid in the design. On the facades of buildings are mounted special boxes. They solve two key tasks. First, it is minimized by the likelihood that fasteners will be performed badly. Secondly, the box is harmoniously embedded in the design of the building and do not spoil his appearance.
If there are no boxes in the building, then the choice of space should be made taking into account the following factors.
General rules for choosing a place for air conditioning:
Before starting work, you must prepare a set of tools. To install an external unit, it will be necessary:
When installing it is necessary to consider the following rules:
Installation to the wall is carried out using special brackets that are usually included in the package. It has the form of a profile of various sections bent at an angle of 90 degrees. It has several holes: one for fixing to the wall, others for mounting the block. The carrying capacity of the brackets exceeds the weight of the air conditioner several times, so their use will ensure safety and reliability.
Step-by-step instructions for mounting an external air conditioner unit:
Like any other device outdoor block The air conditioner can break. At low temperatures in winter, the use of an air conditioner without a winter kit can lead to a compressor breakdown. The external unit under the influence of external natural factors is greatly cooled and frozen. In such conditions, the Freon cannot boil in the external block. The liquid refrigerant enters the compressor, which leads to its breakdown.
To avoid breakdowns of the compressor from frosting an external block, you should install a winter kit or apply the device in accordance with the technical instructions: heating the room only in autumn and spring at positive temperatures on the street.
Another possible type of mechanical breakdown is the failure of the fan that pumps the air into the unit. The cause of premature fan wear can be hitting the dirt and dust block.
Faults in electronics are associated with the failure of the management and control boards. There may be problems with the integrity of electrical networks.
In the standard operation mode, the external unit requires a preventive inspection within the service framework once every 6 months. The master conducts an inspection of fasteners, checks the integrity and level of filter contamination, clarifies the amount of refrigerant and measures the working pressure of the networks.
The greatest difficulty in maintenance represents the replacement of the working fluid.
The refrigerant is a chemical that represents a health danger, so trusting the work with it is worth a professional master. Checking the state of filters, removal of dust and dirt can be made independently.
Often, during repair, many think about the installation of the split system and plan the design of the room under the size of the air conditioner. The internal unit of this device must be placed in such a way that it is not only correctly located, but also the most harmoniously looked in the intentional interior.
The acquisition and selection of the air conditioner itself is often planned closer to the end of the repair, but also to supply "food" is already needed. So for such cases, this article is written. In it, we will consider in detail what distances should be taken into account for subsequent installation, and reveal the most universal dimensions of the internal blocks (wall household devices).
At first, we immediately want to warn that there are "non-standard" models of air conditioners that may have unique sizes and characteristics. And therefore this article should not be perceived as 100% universal.
Most often, residential rooms have a small area (up to 25 square meters.) For such premises, air conditioners are suitable for up to 2.7 kW (not confusing with power consumed) - usually they are called "Sevenki" or "Nine". As a rule, "seven" and "nine" (one and the same model) have the same dimensions, as well as the same diameter of the tubes. Therefore, we will further take into account the same dimensions and characteristics of the considered sizes.
Depths of us are not very interested in (170-240 mm). Thus, we revealed averaged internal unit size 770 x 270 mm.
Distances from the walls and ceiling
Group of Companies "Mel" - Wholesale supplier of air conditioning systemsMitsubishi.Heavy.Industries..
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Before viewing such, it would seem, a simple topic, like the maximum length of the air conditioner pipelines (open the manufacturer's catalog and see which maximum length), I want to ask one question: what is the engineer in our specialty? What looks into the catalog and gives what is written there? But this can be done and the usual manager, knowledge of hydraulics and thermodynamics is not necessary for this. Probably the engineer is a specialist who sees a little deeper catalog numbers. A specialist who can explain where these numbers come from.
I remember, there was a dispute with a respected person, who in the defense of the catalogs said the following phrase: "If I have an instruction in my hands, how to build a blue house, then I can't build a red house, because It will be a violation of the instruction ... "
So the engineer is probably a person who can build a "house" of any color: understanding what the foundation, carrier walls, overlapping and roofing of the building. It does not matter what at the same time the house will be color.
Split air conditioning systems have one important characteristic - the maximum distance from the outer block to the internal. Moreover, in real objects, this parameter often becomes defining when the air conditioner is selected. The greater the performance of the cold air conditioner - the greater the length of the air conditioner's track allows the manufacturer (Table 1 using the example of Mitsubishi Heavy Industries).
Table 1.
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Cold, kw |
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Pipes, mm. |
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Cold, kw |
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Pipes, mm. |
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For models of 2 kW cold, the maximum length of the air conditioner highway is, as a rule, 15 meters, and for semi-industrial models 7 kW and above - up to 50 meters. For some models, the length of pipelines can reach 100 meters.
But often forget about one important detail - The performance of the air conditioner in the directories is indicated at the standard length of the pipelines of 7.5 meters, and at the maximum length of the air conditioner, the air conditioner will be less. How less - look at these tables:
Table 2.
Equivalent length is the length of the direct pipeline, the pressure loss in which the same as real (with local resistances).
In principle, the power loss is not large - for the 50th model with a length of 30 meters (equivalent length) loss when working on the cold is only 3.4% of the power. On the other hand, for the model 140th, the loss for 50 meters of length is already 17%.
Now you need to pay attention to the theory.
In fig. 1 depicts a classic freon cycle in the air conditioner circuit. Moreover, I ask you to pay attention that this is a cycle for any systems on the R410A freon, the cycle does not depend on the performance of the air conditioner or brand. Let's start from the point D, with the parameters in which (temperature 75С, pressure 27.2 bar) freon enters the condenser of the outer block. Freon is currently superheated gas, which first cools up to the saturation temperature (about 45 ° C), then begins to condense at point A, completely transfers from gas to liquid. Then there is a fluid overcooling to the point A '(temperature 40С). It is believed that the optimal value of 5C supercooling. After the heat exchanger of the outer block, the refrigerant enters the throttling device (TRV or capillary) and its parameters change to point B (temperature 5c, pressure 9.3 bar). Moreover, it is important that after throttle in the liquid pipeline, the mixture of liquid and gas is incorporated. The greater the magnitude of the supercooling of Freon in the condenser, the greater the proportion of liquid freon comes into internal blockThe higher the CPD of the air conditioner.
B-C is the boiling process of freon in the inner unit with a constant temperature of about 5C, C-C '- overheating of the freon to + 10c.
C '- L is the process of suction of freon into the compressor and pressure loss. Similar process D '- M.
L - M is the process of compression of gaseous freon in the compressor with an increase in pressure and temperature.
Fig. 1. Freon cycle in refrigerator On the i-LGP chart
Parameters of freon R410A in the nodal points of the refrigeration cycle
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Points |
Temperature, ° С |
Pressure, |
Density, |
The pressure loss in the system depends on the rate of freon V and the hydraulic characteristics of the network:
Liquid pipeline - 0.3-1.2 m / s
Gas pipeline - 6-12 m / s
What will happen with air conditioning with an increase in the hydraulic characteristics of the network (due to elevated length or large quantity local resistances)? Increased pressure losses in the gas pipeline will lead to a pressure drop at the entrance to the compressor. The compressor will capture a smaller pressure refrigerant and means less density. Refrigerant flow will fall. At the output, the compressor will produce less pressure and fall the condensation temperature. The reduced condensation temperature will lead to a reduced evaporation temperature and frost gas pipeline.
If the increased pressure loss will occur on a liquid pipeline, the process is even more interesting: since we found out that freon is in a saturated state in the liquid pipeline, or rather even a mixture of liquid and gas bubbles, then any pressure loss will lead to low refrigerant boost. and an increase in the share of gas. An increase in the share of gas will lead to a sharp increase in the volume of the vapor-gas mixture and an increase in the speed of movement along the liquid pipeline. The increased speed of movement will again cause increased pressure losses and the process will be "avalanche". Here is the conditional schedule of specific pressure losses depending on the speed of the freon movement in the pipeline:
Fig. 2. Freon pressure loss along pipeline length.
It can be considered as a graph of pressure loss in length. If, for example, pressure loss with a length of pipelines of 15 meters is 400 Pa, then with an increase in the length of pipelines twice - to 30 meters, the losses increase not twice and 800 pa, and 7 times to 2,800 pa. Therefore, a simple increase in pipeline length is doubled relative to its standard fatal lengths for air conditioning.
How to increase the length of the tracks more than standard values?
To do this, you need to solve two problems:
Problem 1 - the problem of increased pressure loss in length in pipelines.
As we found out, elevated pressure losses lead to a sharp decrease in the air conditioner power on cold, a decrease in freon consumption and compressor overheating. Which in turn will lead to the encoding or combustion of the engine windings. That this does not happen, we must reduce the specific pressure loss by reducing the speed of movement in pipelines. Those. Just increase the diameters of pipelines. The decrease in the speed of freon movement is twice reduces the pressure loss of 4 times (formula 1) and, accordingly, for the same time it allows to increase the length of pipelines.
To check it on real equipment, let's look at Table 2: Power loss to cold for the 71st and 140th models with a length of 50 meters.
71th Model Correction coefficient 0.94. Losses 6%
140-yamodel Correction coefficient 0.829. Losses 17.1%
So, pressure losses decreased 17.1 / 6 \u003d 2.85 times
The 140th model is exactly two times more powerful than the 71st, and the pipelines there are the same (3/8 and 5/8). Therefore, the speed of the freon movement is exactly two times less. Pressure loss that obey the quadratic dependence on speed should be about 36%. In fact less, because The reference point is not from 0 meters, but from 7.5 meters.
That is, with a decrease in freon rate, the pressure loss is also reduced at least twice (in practice more than two).
Now let's see once again on Table 1:
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Cold, kw |
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Pipes, mm. |
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Diameter liquid pipelines 6.35 mm operates both on a 2.0 kW system and on a 7.1 kW system. On the 7 kW model, the length of the pipes can reach 30 meters, it means that there are no critical pressure losses at such a length. The disposable compressor pressure, as we have already found out, does not depend on the air conditioner power. Therefore, the same liquid pipelines for models from 2 to 7 kW are due to the absence of smaller diameter pipes. For models from 2 to 5 kW, the liquid pipeline is taken "with a stock".
But the diameter of the gas pipeline is selected closer to real values, so its cross section varies from 9.52 mm to 15.88 mm.
Considering all the above, you can make the following table:
Table 3. An increase in the permissible length of pipelines when the diameter changes change.
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Cold, kw |
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Pipes, mm. |
6,35/12,7 |
6,35/12,7 |
6,35/12,7 |
9,52/15,88 |
9,52/15,88 |
9,52/15,88 |
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Length, M. |
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Cold, kw |
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Pipes, mm. |
9,52/15,88 |
9,52/15,88 |
9,52/19,05 |
9,52/19,05 |
12,7/19,05 |
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Length, M. |
Power loss at the specified maximum length will be from 10% to 15%. As follows from Table 2, MHI power losses are allowed to 20%.
Problem 2 - Return oil into the compressor.
By increasing the diameter of the gas pipeline, we reduce the rate of motion of the refrigerant, and therefore the effect of separating the oil can occur and stroke it in pipelines and "oil traps". To this not happen, in some outer blocks MHI, special devices are provided - oil separators.
Fig. 3. Freon circuit of the external blocks of FDC200 (250) VS
Table 5. Power loss of external blocks of 200 and 250 index at different diameters of the gas pipeline.
But on most, there are no oil separators. On the other hand, the problem of separating the oil was more characteristic of Freon R22. First, because the viscosity of mineral oil used with freon R22 is greater than the polyester for Freon R410A. Secondly, the density of the R410A is higher, the disposable pressure is higher, therefore the diameters of the pipelines per 1-2 sizes are less.
In any case, an increase in the diameter of gas pipelines is allowed on horizontal sections. Those. At the vertical sections of the pipeline, it is necessary to use a standard (catalog) diameter, and on the horizontal you can go to the diameter of the larger section.
Example:
In the residential complex of G. Perm on each floor of the building highlighted special premises for external blocks of air conditioners. But the length of the pipelines that occurs at the same time, reaches 40 meters. The maximum length of the household split split system of any manufacturer is a maximum of 25 meters. However, in the case of an increase in the diameter of the gas pipeline to 1/2, the air conditioner pipeline can reach 40 meters. The household model SRK35ZJ-S mounted. The plot near the outdoor unit is performed by standard (1/4, 3/8), then approximately 1 meter transition gas pipe Prior to a diameter ½ on a soldering, and then near the inner block reverse transition to 3/8. Liquid tube unchanged.
More than 10 air conditioners are mounted for such a scheme. The very first more than 2 years ago. All air conditioners work fine.
Conclusions.
In this case, it is necessary to carry out an additional refrigerant refueling to an increased length of the liquid pipeline according to Table 4.
For air conditioning residential premises and administrative buildings Install split systems different species and types. Split system is a device consisting of two blocks: outdoor and internal. The first is put out on the street, the second is mounted in the room. Both modules are connected by a copper pipeline, which circulates the working gas (Freon), and electrical communications.
The view is a more generalizing concept applicable to technical devices Climate control regarding their destination for certain buildings. Type has a narrow semantic direction, under which any feature of the design or design is meant.
Split systems are subdivided by types and by types. There are two types of two-component installations: household and commercial or semi-industrial. The first mounted in apartments or small offices, the second - in stores, hairdressers and other similar establishments.
All split systems are divided into types regarding the design and design of the indoor unit:
Each manufacturer releases split systems with different types of internal blocks, completing them with those or other functions and a standard set of operating modes, which include cooling and ventilation in the air room. It is the parameters of this part of the system justify the choice of buyers.
Regardless of the dimensions and external performance, any room module consists of:
Fine cleaning filters, winter set and other additional items go as an option at the request of the customer. The composition may include a circuit board if the block has wall execution. The parameters of the work are specified from the remote control. Some expensive technology models have the ability to manage the functionality via the Internet, from the phone or from the central controller.
In general, cooling looks like this: to absorb heat from the room and highlight the coolness, the fan of the inner block pulls the heated air out of the room, after which the process of absorbing the heat refrigerant begins when it passes through a cold serpent.
The refrigerant is liquid gas (Freon), at the expense of which the air is cooling. In essence, it is a carrier of heat. In the process of transferring the air of the cold and the fence of heat, he changes its condition, that is, evaporates. This happens in the heat exchanger of the indoor unit. Here, freon passes from the liquid state into gaseous. He took the heat, the air cooled and falls through the fan back to the room. The heat output process is already under the outer block.
If it is easier to speak, the role of the internal module is the fence of warm air, it is cooling and issuing back to the room. When the device is working on heating, it, on the contrary, becomes the heat conductor, changing with the outer module performed by the functions. This principle employs internal blocks of all types.
wall inner block
TO household air conditioners Wall-mounted models are most popular among buyers. They resemble a rectangle or a square as the LG ART COOL Gallery LG wall instruments. They are hanging on the wall in a convenient place for the user, so that the processed air does not go to the constant location of the person.
Select the required size of the indoor unit of the air conditioner relative to the roomy capacity of the room. Each manufacturer has ruler of large, standard, and even reduced climate control devices.
The concept of the size of the indoor unit of the air conditioner includes such values \u200b\u200bas:
The minimum height can be about 24-25 cm, the width is 70-74 cm, and the depth is 18-19 cm. For example, the company produces a series of wall splits from the depth of the inner unit of only 18 cm, which significantly expands the possibilities of installing such a device in various Points of premises.
The maximum height of the wall room module can reach up to 30-32 cm, the width is 110-120 cm, and the depth is about 30 cm. For example, Mitsubishi Electric produces a series of inverter splits with such parameters.
If the internal air conditioner unit has a non-standard execution, for example, it is assumed to be a vertical location in the room, then these parameters can change much.
As a rule, air conditioners, and not only wall mounted, there is a direct dependence of the sizes of the internal unit from it internal device, More precisely, from the size of the heat exchanger and space for it blowing air. Than they are less, the smaller the device, and the worse performance.
Some manufacturers retain normal performance with a decrease in dimensions by increasing the fan speed, but a new drawback appears - increased noise. It is of paramount importance when choosing an air conditioner in an apartment. This trouble can be avoided by improving air flow. Although in any case a very powerful split can not have a small internal module.
Today, some manufacturers paid their attention to the release of non-standard room modules for split wall type. For example, LG in the ArtCool series offers square devices with the possibility of changing the picture on the body, and everyone surprised the output of the vertical indoor unit of the air conditioner with a non-standard air distribution into two sides, which is more characteristic of outdoor ceiling models. Gree is no longer the first year's corner appliances, but in Russia it is difficult to find them.
As a rule, the vertical indoor unit of the air conditioner, and the corner, and the square buyers prefer either due to saving space, or purely from designer preferences.
The remaining types of the internal unit of the air conditioner are classified as semi-industrial equipment, but low-power models of such devices can be installed in ordinary apartments.
The cassette module has square shapes and easily fits in a cell suspended ceiling. Its dimensions can be 600 × 600 mm or 800 × 800 mm, although some manufacturers produce a series of super compact cassettes with dimensions of 500 × 500 mm.
Along with cassette internal modules in a fake ceiling (or wall), sew channel devices representing a hybrid supply installation and air conditioning. They not only cool the room, but also can freely update indoor air through an outdoor immersion additional equipment - Supply installation. In both species of these climate control units, only distribution grilles are visible.
The only disadvantage - they need an inter-storage space at least 30 cm for mounting.
Column air conditioners are like an elongated wardrobe. They are placed in large rooms on the floor where a large cooling capacity is required. Their dimensions significantly exceed the size of any wall model, but this is a necessity, since it is impossible to achieve this power in a different way.
The outdoor-ceiling splits are completely compact and at the same time quite productive for rooms up to 100-120 m². Their inner block in shape resembles a modern radiator. They are easy to care and use. The main advantage is two ways to attach such an inner block: to the wall and on the ceiling. If the module hangs on the wall just above the floor, then blowing goes into two sides, exciting even the most complex and hard-to-reach areas of the room. That is why outdoor ceiling models love to mount in rooms with a complex configuration.
Not only design, but also specifications The internal unit of the air conditioner causes the purchase of a system. After all, depending on how correctly they were picked up, the device will either work correctly, or quickly spends the laid potential.
What is the main technical characteristics are important when selecting an indoor unit of air conditioner to the room? We look at the example of the air conditioner LG ART COOL GALLERY.
Each manufacturer, these data can be complemented by other parameters, so the technical characteristics of the internal unit of the air conditioner usually look or on a signboard or in the user manual.
Conclusion: Any room unit is endowed with cooling and heating (kW) capacity, electricity consumption (kW), air consumption (m³ / hour), as well as specific sizes and weight.
With the power of consumption, the question is slightly complicated by the fact that it may not specifically indicate for the indoor unit. More often in the characteristics they write the parameters of consumption in general for the split system, while it consumes much less than the outer device - an average of 100-200 W.
Installation of a wall-mounted module can be very diverse. Most often, the block is fixed on the right or left of the window and as close as possible to the outer, so that the length of the track does not exceed the recommended length of 5 meters. If, if necessary, these values \u200b\u200bare increased, the highway is delayed in the stroke in the wall or gently fit into the decorative plastic box along with the rest of the connecting communications.
Other types of internal blocks are mounted in the places allotted for them:
The internal block should not fall straight rays of the sun, any effect on it heat sources is also eliminated.
Sometimes the customer may require the installation of the inner unit of the air conditioner on the loggia, explaining it to the fear of bottlement, limited space indoors, reluctance to stick the wall or have a long track packed in the box. Another reason for such a request can be the impossibility of finding the zone in the room that the tenants would be used. This happens with a large crowd of people in one room.
Is it possible to install an internal unit of the air conditioner on the loggia, if so, then what kind of requirements should be taken into account?
Even when performing the required conditions, the problem occurs regularly. First, the difference in temperatures will still be felt. Simply put, the North Pole will be on the loggia, while in the room only a little cool. Secondly, the potential even the inverter still exists much faster.
Competent specialists will never advise the internal block from the air conditioner on the loggia, based on all listed items.
Depending on the type of inner block, there are two types of its mounting to the wall or ceiling. Household split systems hang on the mounting plates. This happens according to the following scheme:
Thus, the inner block is fastened to the wall only wall models. Commercial modules are fixed with special studs on another scheme:
It is worth remembering that the installation of channel systems with air ducts is carried out at the stage of construction and repair work. The remaining splits can be installed at any time.
For the correct installation of the internal module use fundamental electrical circuits The air conditioner on which all inter-block connections and their connectivity are indicated. Without them it is impossible to carry out installation, since there is no single scheme, but for different types Modules are completely different. The same applies to ON / OFF and inverter splits.
Each manufacturer has a diagram of the inner block of the same type can vary greatly, therefore, only the one that is attached to the manufacturer's manual is used.
Each split system needs regular maintenancewhich implies cleaning blocks from contaminants of external and internal, as well as diagnosing faults and refueling freon as needed.
Can I somehow clean the internal unit of the air conditioner at home? Yes, it is real, but undesirable, since an inexperienced user can damage any part of the device. If you still have no opportunity to call, then a person needs to know how to disassemble the internal air conditioner unit to wash the filters, a fan and heat exchanger.
First, they remove the decorative panel, for this click on the latches on the sides, and the case cover easily leaves. Then carefully remove the filters, a fan, the tray for collecting condensate and washed them under the jet of flow water. The heat exchanger is wiped with a damp cloth, as it is a stationary detail. After cleaning, all the elements are wipe and installed back.
At the end of the article, you can watch the video on how to disassemble the internal unit of the air conditioner and how to clean it without the help of specialists.
To implement these actions, you will need a soft rag from microfiber and a special foam for cleaning split systems.
Even if, with how to clean and disassemble the internal unit of the air conditioner, there will be no problems, the user will not be able to hold and diagnose itself, so you have to call specialists who have professional equipment and materials.
In what cases may still need to help the master? The user should alert such moments as:
Many users are interested in why the internal air conditioner is frozen, and how serious it is. Such a sign suggests that:
Using the measurement of the operating pressure, the master will immediately determine if the system is actually not enough freon. Contaminated internal elements can be seen independently, removing the cover of the housing. Also, the cause of the frost of the indoor unit of the air conditioner can be too long a highway, which installers simply did not directly.
If any deviations are selected in the split system of a split system, you must immediately invite a specialist.
Put the internal unit of the air conditioner - not just fit into the interior of the room next to the chest or above letter table near the window. Often, the installation of the air conditioner will agree with the changes planned on the occasion of full redevelopment of the already existing home or apartment or in just a new building.
The owner of the household or the owner of the workplace knows exactly what model of the air conditioner will fit him in its particular case. The selection is carried out not only on the operating characteristics of the air conditioner (power, number of modes and other general and auxiliary functions), but also in size that the outer and internal block should be posted.
Almost all household owners prefer to the Split system for its energy efficiency, highly cold return and variety of types of splits presented in the microclimatic technology market.
The size of the internal and external blocks is the main factor affecting cold power. The fine inner block is unlikely to have an inner circuit, which circulates the gas aggregate state of the refrigerant, will be quite large to issue, say, all the same 15 kilowatt power on the heat taken from the room. In the bedroom to 25 m2 of cold power in 2.7 kW, it is enough to lower the temperature, for example, from 32 to 23 degrees.
However, in a small range of highlighted cold power - for example, in 2.7 and 3 kW - in the models of air conditioners of the same line, the housing of the indoor unit may be the same. This is due to the stock indoor spaceallowing you to place a slightly longer coil. In some cases, the increase in cold power is achieved and due to a slightly more powerful engine of the cylindrical propeller, blowing the cold to the room just generated by the circuit. But the "rejection" of the fan, overclocked at full capacity, introduces additional noise in the cooled room. The diameter of the freonotrass tubes remains unchanged.
The model length of the indoor unit split-system is on average three-quarters of the meter. Rare - a block with a length of 0.9 m. The installers often refuse averaged length of 77 cm.Block height - 25-30 cm, often used averaged value to 27 cm. Depth (from the front panel to the wall) - 17-24 cm. The depth is no longer so important here. The practical (installation) length and height - 77x27 cm, which fits into the requirements for apartments.
A compact ceiling module, which often has a "surrendered" form, occurs a quadratic execution with a side of 50 cm to 1 m. If the block is channel, then its main part is hidden in ventkanal. At the column modules installed on the floor, the height is approximately 1-1.5 m, and the width and depth - as in small single-chamber refrigerators, for example, 70x80 cm. Because of this, the column modules do not have in small rooms.
Whether it is a large-average or small-sized module, its placement principle may not change, especially in the models of one line. Split air conditioning of high power does not have too small inner block. And on the contrary, a low-power split system is not needed too spacious room block.
The internal unit is located so that obstacles to the fence of heated air from the room and the issuance of it in the chilled form should not be. For non-standard or limited spaces, the sizes and location of the wall, floor or ceiling unit should not be damaged to people who use such a room. There have been cases when due to the characteristics of the building architecture, the ceiling unit has placed on the wall or vice versa. From how it will be located, the operation of the coolers does not depend, the main thing is not to pour the electronics of the block with water condensate, generated during the work.
Specific firms from time to time appear their own approaches to the placement of room modules of split systems. So, Carrier presented a vertical block with a side yield of cooled air. Gree offered corner air conditioners.
Such decisions are successful with the owners of small one-bedroom apartmentsshred to the deficit of space.
So, the company GREE.the depth of the room module is only 18 cm. Length and width here vary respectively within 70-120 and 24-32 cm.
W. Mitsubishi.air conditioners have the following dimensions: 110-130x30-32x30 cm. Such dimensions are taken for no less than a few centimeters for high-quality blowing radius, and its length should be at least 45 cm.
Chinese air conditioners from the company Ballu.- The smallest systems. The BSWI-09HN1 model has a block with dimensions of 70 × 28.5 × 18.8 cm. The BSWI-12HN1 model is similar, differs only by a slightly large external unit, the size of which does not have a special value for the inner residential space.
