The article will not talk about all monoblock air conditioners, which, by definition, do not have outdoor units, that is, they are air conditioners without an external unit. This is a wide segment of climatic equipment (windows, rooftops, mobile and stationary monoblocks), like all air conditioners, which serves to maintain the microclimate in the room.
Advantages of a stationary monoblock air conditioner
And he has advantages:
- The absence of an external unit on the wall of the building.
- For their installation, you do not need to obtain permission to install an outdoor unit. Sometimes this is not possible.
- Lack of freon lines and the need for rolling connections. With poor-quality rolling, freon leakage is possible. The dependence of the quality of installation on the qualifications of installers is excluded.
- Simple installation, which is almost impossible to mess up.
- Modern design. Large selection of block colors.
- There are models with an influx of outside air. The inflow of a stationary monoblock is equipped with systems of filtration, recuperation and heating of the outside air. But the volume of supplied air is small (up to 30 m 3 / h).
Pros and cons of installation
Installation of a wall-mounted air conditioner without an external unit is really simple and does not require highly qualified installers. It is necessary to make holes in the wall according to the pattern for attaching the air conditioner plate and cut two holes with a diameter of 160 mm outward. Insert two air channels into them. Install outer grilles.
Channels, patterns and grilles are included in the package of a stationary monoblock - an air conditioner without an outdoor unit. Remarkable is the installation of gratings that does not require high-altitude work. Lattices are simply made flexible. They are gently pushed out, and then unbent, closing the hole. A special cable is tied to the air conditioner body and fixes the open grille
In the renovated premises, in order not to spoil the interior, the outer holes are cut using the technology of dry diamond drilling (the drill is not cooled by water). Water is not allowed. She will definitely ruin the finish. The cost of two such holes (depending on the thickness and material of the wall) is slightly less in relation to the cost of installing a split system. Yes, and it will not work completely cleanly. Dust will still get into the room no matter how powerful the vacuum cleaner that cleans it.
About the tightness of the wall monoblock
The freon circuit of the air conditioner without an external unit is evacuated and charged at the factory. The circuit is sealed and sealed, freon leakage is impossible. The system does not require maintenance. This is advertised as one of the benefits.
In fact, freon leakage will still occur. Freon is very volatile. It goes into any microcracks. And, if there was no factory defect, these cracks form after several years of service.
Then the air conditioner needs to be topped up. But there are no valves for refueling. In this case, the copper tubes are cut and freon is added to the circuit. The quality of this work depends on the qualifications of the specialist.
Maintenance Savings
The statement that stationary monoblocks do not require maintenance is incorrect. Maintenance is not only about controlling the amount of freon. It is required to clean and check the serviceability of heat exchangers and fans. Clean out the drainage system. Check temperature, electrical connections.
Condensate removal system (drainage system)
The condensate must be drained to the outside through the air pipe of the air conditioner without an outdoor unit. Part of the condensate evaporates. The one that has not evaporated pours out through the grate and can spoil the wall finish. This means that the process of drainage diversion cannot be considered resolved.
Here (as with a split) you need to consider a method for draining drainage and not disturbing the wall finish from the outside. That is why the air conditioner kit without an external unit contains drainage tubes, and its design has a hole for draining the drainage.
Quiet operation?
Noise characteristics of wall monoblocks - from 32 dB to 42 dB. For an indoor unit, this is noisy. Modern outdoor units of split systems of similar power work with such acoustic parameters. But in splits, this part is taken out into the street. Therefore, for air conditioners without an external unit, the model range is limited to a cooling capacity of 3.5 kW.
Noise from a model with a higher cooling capacity would not allow them to be used in domestic areas. However, the manufacturer claims that the design of the air conditioner is changing, quiet models are appearing.
The price of stationary monoblocks
How much does an air conditioner cost without an external unit. The price of equipment is still high.
Here are examples of prices for inverter models:
Models ON/OFF:
For this money you can buy some very good split systems.
It turns out that a stationary monoblock, often inferior to split systems and other types of air conditioners in terms of technical characteristics, is a good compromise option in the event that there is no permission to install an outdoor unit, it is impossible to mount it, or there is no way to forward a pipeline to install other equipment.
Structurally, the external unit of a split system consists of a compressor that compresses the refrigerant, a condenser that performs the task of cooling freon, and a 4-way valve (used in functional systems that can heat and cool rooms). In addition, it includes a fan that moves air and blows around the condenser, a control board and a system of fittings. Included in the design and a grill that protects the fixtures from getting inside insects and foreign objects. Since the compressor is located in the outdoor unit, this significantly reduces the noise level in the refrigerated room - it is about 24-26 dB.
How to choose an outdoor unit of a multi-split system?
The following parameters must be taken into account:
- device dimensions. As a rule, the dimensions of the blocks are 80 x 50 x 30 centimeters;
- power. It is selected in accordance with the serviced area of the premises;
- noise level. It often happens that the air conditioner in the room is silent, but the outdoor unit is very buzzing. Permissible noise level - 33 dB.
The company's consultants will help you buy an outdoor unit of a split system that is the most suitable in terms of price and technical characteristics and meets your technological needs.
Owners of buildings with a large number of rooms, choosing climatic devices, are increasingly making their choice in favor of the most advantageous option to date - multi-split systems. The operation of just such equipment makes it possible to optimize the consumption of electricity, while creating favorable microclimate conditions in the entire building at once. In addition, multi-splits have already received wide demand from the owners of business centers and other commercial real estate.
What blocks to choose?
Internal blocks of multi split systems, like any other semi-industrial air conditioners, are of several types:
- Wall Mount Models
- Floor and ceiling modifications
- Devices for integration into the duct system
- Cassette version - the units are mounted in a false ceiling or suspended from the ceiling on brackets
The most popular among them are wall-mounted devices designed for indoor installation. The price for them, as a rule, is about the same as for conventional wall-mounted air conditioners. The set of functions and modes of operation does not differ - it all depends on the specific model. The only, but very important difference is the fact that regardless of the number of blocks for indoor installation, there will be only one outdoor one.
Manufacturers of wall-mounted multi-split systems
In today's climate technology market, multi-splits are represented by a huge number of companies. In our store you can find only genuine products from the world's leading brands. We present the top 5 most popular companies of the present time:
- Mitsubishi Electric is a Japanese manufacturer with many years of experience.
- Zanussi is an Italian company famous for its quality products and unique design solutions.
- LG is a popular manufacturer from Korea
- Ballu is a world famous Chinese brand.
- Carrier is an American company with over 115 years of existence.
Why is it profitable to buy in the MirCli store?
If you have already decided which wall unit you want to buy, we suggest you do it using our online resource. the site provides pleasant and mutually beneficial conditions, a variety of payment methods and delivery in Moscow and throughout Russia.
Greetings to all readers of the site "All about air conditioners". Today I will tell you what parts the indoor unit of a split system consists of, and why each of them is needed. We will also analyze the joint principle of operation of all these components.
Many of you know that there are several types of devices for various purposes in industry and everyday life. Each of them has its own design and features. To understand them, I have a separate article dedicated to. But today we will analyze the most common type of air conditioner in houses and apartments - a wall-mounted split system.
Details of the indoor unit of the wall-mounted split system
Evaporator (radiator)
As we know, the most important function of an air conditioner is to cool the room. Therefore, the main part of the indoor unit is the radiator (it is also an evaporator, it is also a heat exchanger). It is called an evaporator, because in the cooling mode, freon evaporates (boils) inside its tubes. Based on this process.
The size and shape of the evaporator largely determines the (cooling capacity) of the “split”. The more powerful the air conditioner, the larger its radiator should be. Such an element is a tube crossed by thin plates (similar to lamellae). Freon moves through the tubes at a certain temperature. And the plates increase the heat exchange surface area, which significantly affects its efficiency.
Manufacturers are improving (complicating) the shape of the radiator and its plates in every possible way. For simple wall-mounted models, this may be a straight small radiator; for other models, this radiator may have a complex shape that occupies most of the body. Radiators of modern air conditioners have an antibacterial coating, which in some way prevents the reproduction of viruses. But since such trifles are not visible from the outside, almost no buyer pays attention to these things. But in vain!
Shaft (fan)
In order for the radiator to quickly and efficiently cool the room, it is necessary to “force” the air through it. This is helped by the shaft (aka fan, aka impeller), which creates air movement through the radiator and blows it into the room. This part of wall-mounted air conditioners is a drum with blades. The blades and the shaft itself are designed in such a way as to reduce the noise of its operation. For all wall-mounted air conditioners, it is located under the evaporator. In most models, the radiator, as it were, outlines the shape around the shaft. This design combines the most efficient heat transfer and ergonomics (allows you to make a compact indoor unit).
Motor (motor) shaft
The shaft of the indoor unit is driven by a motor. It is located to the right of the fan and is controlled by the board (I will write more about it below). The motor is fixed with a special casing to the block body.
Drainage tray (bath)
During operation of the air conditioner, condensation (water droplets) forms on the evaporator. In order to "collect" all this water, the so-called drainage tray is used (it's also a bath, it's also a pallet). For some air conditioners, it is connected to the body, but in most
designs it is removable. Together with moisture, all dust and pollution is collected in it. Therefore, it is much more convenient to flush and maintain this tray when it is detached from the body. The front lower part of the radiator, as it were, lies in this tray and the condensate from the radiator flows directly into the bath. Most often, water is brought out into the street through.
Horizontal and vertical blinds (blinds)
Any wall-mounted indoor unit has two types of curtains, with the help of which the direction of air flow is partially regulated. Horizontal blinds regulate the flow up and down. Behind them are vertical blinds, which are several "petals". They regulate the flow from right to left. All these curtains are attached under the drainage tray. When servicing, they are removed together with the tray. They are driven by small motors.
Control unit (board) with sensors
In order to synchronize (coordinate) the work of all parts, a so-called control unit (the “brains” of the air conditioner) is located inside the case. They manage all nodes. This element is a board to which "power" is supplied. All wires, starting elements of engines and sensors are connected to it. This board is located on the right side of the indoor unit case.
The operation algorithm of this block is guided by the indicators of temperature sensors, and issues commands to the main components of the air conditioner (compressor, fans and expansion valves), turning them on and off in a timely manner. Thus, the unit controls each element of the split system, maintaining the required temperature in the room.
Air and heatsink temperature sensors are the most important parts of the board. Their readings form the basis of the process of maintaining the exact temperature in the room.
Filters
An obligatory element of a modern air conditioner is its filters. They are located on top of the evaporator under the revision cover of the housing. Mesh filters "collect" the main part of the dust. They can be removed and washed very quickly, which allows you to keep the evaporator clean longer. In addition to mesh filters, many air conditioners are equipped with other filter elements. Some of them are able to effectively destroy bacteria and viruses - some eliminate odors, and some enrich oxygen with healthy particles.
Indoor unit housing
All of the listed parts are combined and hidden in a single housing. It represents an equally important detail, since a compact and effective design is indispensable for creating a modern interior.
From the considered trifles, the quality of the final product is formed - in our case, the air conditioner. The more modern each detail, the more efficient, reliable and, accordingly, more expensive it is. In the modern world, there is a very high competition between manufacturers. Therefore, each of them offers its own technical solutions for a certain price category. This is where I end the article. Leave your comments!
The indoor unit of the split system performs the main task of the air conditioner - it cools the air in the room. Structurally includes:
housing with shutters
radiator (evaporator);
a fan with an electric motor;
· electronic control unit;
water drainage system.
Additionally, inside the case there are air filters and a container for collecting moisture.
Depending on the version, indoor units are wall-mounted or floor-mounted. As an option - universal, that is, they can be attached to the wall or installed on the floor.
A feature of modern indoor units is the antibacterial coating of the surface of the evaporator.
Advantages and Features
One of the significant advantages of split systems is their compactness. The indoor unit of the air conditioner takes up little space and fits nicely into the interior of any room.
The air conditioner can operate in cooling, dehumidifying and heating modes. Such versatility is especially useful in the cold season when the central heating does not work.
Configuration and operation of the split system is carried out using the remote control. If necessary, the air conditioner operates automatically.
A special coating protects all metal surfaces of the indoor unit from corrosion.
Additional functions of the indoor unit
Each modern indoor unit of the air conditioner has additional functions:
· the accelerated mode of creation of a microclimate;
protection against icing of the evaporator;
· energy saving;
night mode of operation of the device;
settings memory;
Eternal (washable) filters.
You can buy the indoor unit of the air conditioner separately in our online store. When choosing a product, the manager will tell you in detail about all the functionality and help you choose exactly the device that will fully provide a comfortable microclimate in your room.
