Split system with forced ventilation. Air conditioning with air flow from the street: advantages and disadvantages of this climate technology

Modern ecology, especially in cities, leaves much to be desired. Therefore, the presence fresh air in a residential area, it is, first of all, taking care of the health of everyone who lives there. But if in country house to do this, it is enough to open the window sash, then in the conditions of gassed and dusty urban atmosphere, such a solution looks doubtful.

Air conditioner

How to provide yourself with fresh air? Many people see the solution in the installation of an air conditioner, mistakenly believing that it takes in outside air, purifies, cools (or heats) it, and releases it into the room already in this form. However, this is not at all the case.

An air conditioner is a device used to create comfortable conditions in a room. First of all, this applies to summer, when unbearable heat sets in on the street, when it is difficult not only to walk along the street, but also just fall asleep at night. What does the air conditioner do in this case? Cools the air. But what kind of air? The same one circulating in the room. Yes, he cleans it of harmful impurities as much as he can. A cheap one does not clean well, trapping only large particles of dirt and dust, as well as accidentally flying insects, on a special grate. Expensive "catches" pathogens, pathogenic fungal spores, pollen and other allergens and smaller dust particles. However, the air remains the same and each time the percentage of oxygen in it decreases, and the percentage of carbon dioxide increases. And the apparent freshness is due to its purification from harmful impurities and cooling. But after all, harmful impurities do not disappear anywhere - they settle on the air conditioner grille, which should be cleaned regularly, otherwise the condensate accumulating there can become a comfortable environment for the development of bacteria, mold and other unhelpful microorganisms.

An alternative to traditional recirculation air conditioners can be an air conditioner with a forced ventilation mode. However, on this moment this additional function the indicated devices are poorly developed and, if you use it, the air conditioner starts to emit increased noise. And the more air you need to "draw in" from the outside, the louder this noise. Is it comfortable for those living in the apartment? Unlikely. Although a person gets used to everything ...

According to the norms, for one person in the room, 30 cubic meters of fresh air are needed per hour. Air conditioners with supply ventilation, in which the indicated function is set to the maximum, can provide an influx of fresh air in the amount of about 20 cubic meters per hour. This is clearly not enough.

Another mistake of those who want to buy an air conditioner is the opinion that it is able to heat the air, providing warmth in the house in winter. Yes, it heats up the air. However, he is able to do this “painlessly” for himself only if the temperature outside is above zero. If you try to turn it on in the heating mode at sub-zero outdoor temperatures, very soon it will simply break. For cheap models, the compressor will fail, and for expensive ones, the equipment itself will refuse to ruin itself and simply will not turn on. The real benefit of such a split system is only in autumn or spring, when it is plus outside. The risk here lies in the accelerated rate of formation of condensate, which should be removed in time - otherwise the device may break.

And finally, installation. As you know, the air conditioner consists of two parts - internal and external, called blocks. Installation outdoor unit equates to redevelopment, for which a permit is required. If this action is inconsistent, the unauthorized air conditioner installer may be complained about by neighbors, the city, or Management Company. The main threat in this case is the obligation, by a court decision, to dismantle the unauthorized structure. And the installation process itself involves the use of a perforator, the “zeal” of which some particularly old and fragile walls may not withstand.

ventilation unit

Another class of devices that perform more important and vital purposes is supply ventilation installations (or, in other words, ventilators).

Installation is carried out with special equipment to perform diamond drilling. Its high accuracy allows punching a hole in the wall without any concern for its overall integrity and is acceptable even in a newly renovated room. At the same time, on outer wall no need to hang any outdoor units - just install a protective grill with a visor. It can be painted to match the color of the wall. Such an action is not considered redevelopment and does not require additional permission.

Part ventilation unit, placed indoors, has an attractive body made of safe eco-materials. Its main advantages:

• wear resistance;
• fire safety;
• heat resistance;
• high sound insulation.

The ventilation unit draws in fresh, oxygenated outdoor air, cleans it and delivers it to the room already in this form. V winter time an additional function of heating the air to a comfortable temperature is also activated. What is most interesting, the greater the difference between the external and internal temperatures, the more efficient the heating will be. In the most simple models although there is no function for setting the desired temperature, there is a power regulator.

Using the iFresh installation as an example, let's consider several speeds at which the ventilator fan can operate:

• the first, providing fresh air supply in the amount of 40 cubic meters per hour, is absolutely silent and especially comfortable at night;
• the second, supplying air in a volume of 80 cubic meters per hour, is suitable for daytime use;
• the third involves active ventilation in the presence of a large number people and provides the room with air in the amount of 120 cubic meters per hour.

At the same time, active cleaning of the air supplied from the street is ensured, thanks to which, no matter how terrible the street atmosphere is, only clean, oxygenated air is inside the room. A similar effect is achieved due to double filtration through dust and active carbon filters, which trap all harmful particles - dust, industrial gases, pathogens. microorganisms, chemical compounds etc. As a result, there is always enough fresh air in the room, and everyone who is in it feels great.

Summing up, we note that the use of air conditioning is limited to hot summer days and off-season, and we need fresh air every day.

If we talk about the material component of the issue, then from the point of view of the efficiency of investing money, the installation of forced ventilation is a more rational and priority choice. Having provided yourself with clean, oxygenated air, you can decide to install an air conditioner for "hot days".

Air conditioners appeared on the specialized appliance market relatively recently, but a short time they managed to gain great popularity. Today, this device can be found in almost every home.

Manufacturers present to the attention of buyers various models of air conditioners with forced ventilation. Wall-mounted and duct-mounted devices are very popular. indoor unit.

The structure of standard and modern models of air conditioners, with additional elements, is almost identical, the difference is only in the presence of an additional special air duct.

Channel models of air conditioners are additionally equipped with a special device, the action of which is aimed at heating the air flow coming from the street in the cool season to a certain temperature.

Varieties of devices with forced ventilation

As mentioned earlier, the difference between standard designs and devices with forced ventilation is the presence additional element- a special air duct. Therefore, the difference various models from each other lies in the principle of the device of the duct channel.

Membrane

The device of air conditioners of this type includes a special membrane, with the help of which the working processes of the channel are adjusted. characteristic feature The functioning of the membrane is in a special passage of air flows, in which oxygen penetrates into the room much better than other gases. Thanks to this feature, the unit is able to perfectly maintain the appropriate level of oxygen in the building. Similar models of air conditioners equipped with membranes are quite difficult to find on the specialized instrument market, the cost of such structures is quite high. In addition, it should be noted that the installation work similar device will cost the owner a fairly large amount.

Modular system

This device basically plays the role of an additional element of the air conditioner. The design includes special components that ensure the smooth operation of the device. In addition, the design of the module includes air ducts, small size through which the main air currents pass. To put it simply, the module is an ordinary small-sized hood. The disadvantage of such a device is its size. The large-sized box is fixed on the wall, in close proximity to the external unit of the air conditioner. The second significant drawback of such models is the limited volume of air exchange, which is not enough for the full breathing of even one person. At present, there are almost no such modular systems left on the Russian specialized market of devices. This is due to poor technical and operational characteristics of modular systems. Many manufacturers of these devices are withdrawing them from production and from retail outlets.

Conversion of some air conditioning devices

the most optimal and the right option in this case is the conversion of the outdoor unit of the air conditioner. This is quite feasible, it is enough just to correctly combine the ventilation and special block cooling the device using the air duct. Air flows in this case will flow precisely through the duct channel.

This way of converting some air conditioner devices will help to significantly increase the volume of air masses supplied to the room and provide the optimal amount of clean air for breathing. The price for such models of air conditioning systems is quite high, the installation will also require a decent financial investment.

Other types of fresh air conditioners are modifications of the models described above. Thus, all models of such air conditioners have one common feature– low level of air exchange. The level of clean, oxygenated air is about 10 percent, and the air flow is about 20 cubic meters per hour, which is about 50 percent of the required rate. The highest scores among various kinds air conditioners belong to devices with a duct arrangement of the indoor unit, they provide about 25 percent of clean air enriched with oxygen. Such systems have one, but very significant drawback - complex and time-consuming installation.

From the above, it follows that the most correct and suitable solution this issue is the installation of an air conditioner in the dwelling, equipped with forced ventilation, sometimes it is enough to do it in one room of the apartment. A high-quality air conditioner, additionally equipped with forced ventilation, is able to provide the necessary amount of air directly from the street, while purifying it from various impurities and contaminants harmful to the human body.

Positive properties of air conditioners equipped with supply ventilation

1. Perhaps the most basic and important advantage of air conditioners and ventilation systems can be called the timely provision of premises with clean, fresh air, the right temperature, in summer - cool, in winter - warm. This became possible due to the equipment of the devices with special modern heaters, with a digital control system, the action of which is aimed at heating the air masses before entering the room. This unique and practical development of engineers significantly increases the efficiency of the devices at low negative temperatures.
2. Air conditioners equipped with forced ventilation, perfectly clean air masses entering the building directly from the street. This is especially true for buildings located in the city center or in close proximity to a busy highway. For owners of such living space, the problem of air purification is especially acute. Modern models air conditioners are equipped with efficient filters, reusable, which qualitatively purify the air entering the room from the street, are easy and quick to clean and serve for a long time.
3. An important quality modern air conditioners is the possibility of processing and supplying fresh air to several rooms at the same time. When selecting and installing an air conditioning system, you must contact qualified help to specialists, in this case, a long-term operation of the device is guaranteed, as well as the most effective purification and supply of the required amount of air into the room.
4. For many owners of air conditioners, control of the device is a rather serious problem, which cannot be said about similar models. They are equipped modern devices and special software which greatly simplifies the management of the air conditioning system. It is only necessary to set the optimal temperature level on the control panel of the device, the rest will be done by the system itself and the air conditioner.
5. Modern models of air conditioners operate almost silently. This is due to the use special materials, which provide reliable insulation various sounds and vibration.

Choice suitable model air conditioner depends on the wishes and financial capabilities of the client, while it is important to take into account the technical and performance characteristics device.

Often after installation plastic windows there are problems with the ventilation of the room. This leads to an increase in the concentration of carbon dioxide in the room. The level of humidity rises in the apartment. Residents begin to feel unwell, there is a feeling of constant drowsiness and other backfire. What can be done to put everything back on track? There are several basic options, and one of them is air conditioners for an apartment with forced ventilation. They allow you to simultaneously create comfortable conditions for living (temperature, humidity) and saturate the room with oxygen.

In addition, you can use the option with the restoration of air flow without the use of equipment. To do this, you will need to use all kinds of valves.

Ways to establish natural ventilation

First, let's check if the hood works in the apartment. During the diagnosis, you should open all the windows in the apartment and bring a piece of paper to the vent. If it sticks to it, then everything is fine with the hood.

Checking traction

Now let's check if fresh air enters the apartment. To do this, you will need to close all windows and entrance doors. Then do the same operation as before. If the sheet did not stick to the vent, then the ventilation was disturbed precisely because of the installation of new sealed windows.

How to restore natural flow?

Direct inlet valve

Cheapest, but less efficient and functional way to make an influx of fresh air in the apartment, there will be a restoration of natural draft.

There are several main options here:

• Install a supply valve in the design of metal-plastic windows. It includes an air filter and a noise absorber. This will block the path of dust and sounds from the street to the apartment.
• Do periodic ventilation. But in this case, in winter, too much heat will escape from the apartment, and noise and dust from the street will freely enter the room.
• The best option restore the inflow is the installation of a wall supply valve. He will allow the right amount run clean air into the apartment. Experts recommend installing a valve above the radiator, which guarantees the entry of heated air masses into the apartment.

Window inlet valve

Two in one - air conditioning and ventilation

Nowadays, one of the popular solutions to the issue of ventilation after the installation of metal-plastic windows has become air-conditioned air conditioners. They are able to perform two functions simultaneously: to create optimal conditions for living, that is, they allow you to regulate the air temperature and humidity level, and saturate the room with fresh air, which will significantly improve the well-being of residents.

What are the principles of work?

indoor unit

A split system needs two main blocks:

• Interior;
• Outer.

The first one includes air filter, control panel, fan and more. V outdoor unit includes compressor and automation.

Where would be the best place to place the modules?

The indoor unit is often installed on the balcony. It does not take up much space, it works quietly, which has a positive effect on comfort. It is also possible to install a wall-mounted split system for false ceiling. The equipment is made in such a way that it does not harm the interior of the apartment in the slightest. Only decorative ventilation grilles will be visible to the eye.

The outdoor unit is mounted from the side of the street. Using a thin freon tube, it is connected to the inside of the ventilation. A heater is also connected to the indoor unit.

outdoor unit

The work is done in the following way. First, the air is taken from the street, then it passes through the channel into the mixing chamber. In the indoor unit, the air is filtered, heated or cooled and supplied to the room.

microprocessor control

This is a kind of brain of the entire split system with ventilation. Thanks to the electronic control system, the operating modes of the air conditioner will change depending on changes in weather conditions.

Smart air conditioner in autumn and spring period will not immediately turn on the heaters for heating the air. He will use the heat pump", which will save on electricity. A lot of modern equipment is equipped with similar "brains". This leads to a reduction in electricity consumption to a minimum.

System Benefits

There are 5 main advantages in the operation of an air conditioner with ventilation:

1. Fresh air at any time of the year;
2. High-quality air purification;
3. Work in the mode of conditioning and ventilation;
4. Ease of management;
5. Quiet operation of the equipment.

Regardless of the season, you can enjoy clean air in your apartment. Not only that, you won't feel the unpleasant cold in winter that can result from using the natural inflow. Thanks to the installed heaters, the air will warm up before entering the room. Modern technologies allow such a system to work in all weather conditions.

Especially useful quality is air purification. After all, if you live in a densely populated city, then it is not news to you how much dirt is in the street air. Thanks to filters, dust and bad smell exhaust gases you are no longer afraid. Of course, you will sometimes have to change filters, but what can be more expensive than your health.

split system

Any modern split system with ventilation is designed to supply air not only to one room. If you place a network in the apartment ventilation ducts, it will be possible to create the same conditions for living in all rooms. It is only worth noting that the equipment will not be able to create different climatic conditions for rooms.

What could be easier than setting up the operation of ventilation with air conditioning with just a couple of clicks on the remote control buttons. The air conditioner will independently adjust all the equipment thanks to the sensors. You just need to put desired temperature and ask required amount incoming air.

The silent operation of the air conditioner is achieved thanks to carefully selected materials that absorb all sounds. Also, during installation, materials should be used that will absorb vibration and sounds from the operation of the equipment.

What should not be forgotten

Extractor fan in the kitchen

Ventilation requires supply and exhaust. You took care of the first one, but is the hood strong enough to remove air? In order not to ask yourself this question in the future, install a hood in the kitchen and a fan in the bathroom. Thus, you can once and for all forget about problems with ventilation and enjoy only fresh air.

When choosing bathroom equipment, it is important to choose the right equipment. It must be safe and sufficiently productive.

Fan in the bathroom

It is better to install a fan in the bathroom during repairs, so that you can hide all traces of repair work under the lining.

Supply air conditioning complex

Among all types of climate control units, of particular interest is the ducted air conditioning system, which provides the supply of treated air through a network of air ducts in several adjoining rooms without cluttering the interior with unnecessary modules of technology.

The device and principle of operation of the channel system

Like any split system, the channel one consists of two modules: compressor-condenser (outdoor) and evaporative (internal), which are connected to each other by a copper pipeline with freon and electrical wires. The external module is installed outside the building, and the installation of the indoor module involves several placement options:

• in false ceiling;
• in a false wall;
• in the pantry, in the attic, in the back room.

Concealed installation of the evaporator unit makes the use of this type of air conditioner very practical solution for original designs.

In how it is arranged and works duct air conditioner, there are certain features. Such devices are supplied without a ready-made air distribution system. It is provided during the creation of the project.

Design work and subsequent or semi-industrial premises are carried out at the stages of construction or overhaul this object.

To the adapters (special holes) of the indoor unit, connect iron or flexible ducts, which lead to adapters with gratings facing the surface of the ceiling or wall. Air circulates through them. The air ducts themselves are sound and heat insulated to eliminate extra noise and the formation of condensate on the structure.

The air intake goes through the exhaust adapter through the air ducts and enters the indoor unit. There it passes through a strainer, an evaporator and cooled out into the air ducts connected to the supply adapter.

One of the features of how a ducted air conditioner works is the air temperature at the outlet of the indoor unit. She's cold enough. In order to minimize the temperature difference between room and cooled air, it is necessary to choose the right supply grilles. The best option would be slotted, since it is given type is able to give out cold streams in thin jets and mix them as quickly as possible with the warm air in the room.

Air handling unit and fresh air intake

If there is a need for an influx of air from the street, then the duct air conditioning system has the possibility of taking air masses from the outside. To organize such a process, you will need, to which another duct is connected and cut into the supply adapter. In order for outdoor air to enter several local points of the room, usually the ventilation pipe (air duct) coming from the supply unit is divided through a distributing tee into the required number of branches.

The supply unit is a standard module with holes on the sides. It consists of:

• fan;
• heating element;
• electronics block;
• pocket filter;
• dampers.

In summer, the heating element does not work, and in autumn and winter it heats the incoming air to the required temperature. The dampers are needed to block the outlet of the unit, through which, in standby mode, cold streams can enter the air ducts, and then into the room. A pocket (bag) filter is a one-stage filtration system used in supply ventilation systems. It is not subject to regeneration, so most often it is changed to a new one.

At air handling unit and a ducted air conditioner with a mixture of fresh air, two different remote controls. The operation of the supply module is regulated separately.

But it should be borne in mind that in ducted air conditioners, the influx of fresh air is only 30% of the total air flows circulating through the system. None of the ducted air conditioners can mix outdoor air in 100% volume.

Winter work

The duct air conditioner has the possibility of year-round operation. In this case outdoor module mounted in a room where the minimum temperature values ​​​​are -3-5 ° C, and there is space for output warm air. If it is not possible to install an outdoor unit in the room, then it is simply equipped with a “Winter Start” device, which consists of three separate devices: compressor oil heating, fan speed control and drainage heating. But the cost of electricity will increase significantly.

At correct selection the power of the air conditioner and the correct laying of the network ventilation pipes terms of trouble-free operation reach 10-15 years.

Types of channel air conditioners

All manufacturers produce models that operate either only in the cold or in the cold / heat. Duct air conditioners with fresh air admixture can be with inverter and non-inverter type of compressor control. These split systems differ not only in cooling capacity, but also in blowing power, that is, the pressure of the outgoing stream. There are low-pressure, medium-pressure and high-pressure ducted air conditioners. From the force of pressure ( static pressure), which creates a fan, depends on the selection of the length and configuration of the air ducts.

Low pressure air conditioners

This air conditioner has a maximum static pressure of 45 Pa. It can process the air in one room, and the length of the ventilation duct is no more than a meter. Install low-pressure models in hotel rooms, small offices and apartments.

Medium pressure air conditioners

For medium-pressure systems, the pressure force can reach up to 100 Pa, and the total length of the air ducts is measured in tens of meters. They are considered the most in demand, as they best meet the needs of apartments with several rooms, small cottages, cafes, medium-sized offices and shops.

High pressure air conditioners

The pressure force of such models is up to 250 Pa. The length of air ducts can exceed a hundred meters, and their configuration can be complex and branched as much as possible. They install high-pressure ducted air conditioners in large offices, conference rooms, large restaurants and residential buildings with many rooms.

To remove the condensate accumulated during the operation of the device, the duct air conditioner with high strength head is usually equipped with an additional discharge pump. These devices have the highest performance in comparison with low- and medium-pressure devices. All of these characteristics help to distribute air even to remote rooms without any loss and in full.

Duct air conditioners with fresh air admixture are devices with a high pressure force.

What you need to know when buying

There are practically no shortcomings in the quality of the functioning of this climatic equipment, with the exception of the following nuances.

The height of the ceiling in the room must be at least 3 meters, otherwise strong currents air coming out of the adapter with a grill will not have time to be distributed over the space, which will cause colds.

The duct air conditioner with all additional structures is mounted in the space between the ceiling and the false mezzanine. Its height must be at least 25 cm.

V different rooms only the same parameters can be supported. This is not very convenient if one of the zones is on the sunny side, where more low temperature, and the other - on the north, where there are enough average indicators.

Installation of a channel air conditioner

If you do not want to spoil the facade of the building with many external blocks, and clutter up the rooms with internal modules, right decision will be the installation of a channel air conditioner, both in an apartment and in a private house.

In theory, everything is simple - compliance with the stages of work should ensure the normal functioning of the device in the future. But there are some difficulties in which the installation of a duct air conditioner with your own hands becomes simply impossible, namely:

• laying a network of air ducts with the calculation of their cross section and high-quality sound and heat insulation;
• calculation of power, static pressure, air capacity;
• providing access to the indoor unit for subsequent preventive maintenance;
• cutting off some rooms (toilet, kitchen) from the air intake system;
• installation of a supply unit, if a high-pressure duct air conditioner with fresh air supply is required.

10 700 rub.

Indoor unit Pioneer KFRI20MW

With night mode. With on/off timer. Noise level 21 dB. . Type of the internal block - wall. With self-diagnosis function. . With remote control. With auto restart. with ventilation mode. With automatic mode. With dry mode. with heating mode. Coolant - R410A. Served area 20 m 2 . Heating power 2300 W. With fine air filters. Cooling power 2200 W.