What can be cooked from squid: quick and tasty

Specifications:

Noise level dB: 22-43

Power (cooling): 2.5 kW

Power (heating): 3.15 kW

Room area: 25 sq.m

Power consumption: 0.730 kW

The size: 799x232x290 mm

Outdoor unit size: 699x249x538 mm

Temperature range:+15 ... + 46 ° C (cooling) -10 ... + 24 ° C (heating)

Indoor unit weight: 9 Kg

Outdoor unit weight: 24 Kg

Guarantee: 3 years (for outdoor unit 5 years)

Energy efficiency class: A

Description of the device

Benefits of Mitsubishi Electric inverter technology
... Energy efficiency class A
... Economical cooling function Econo Cool
... Built-in 12-hour timer for automatic on or off. The discreteness of the timer setting is 1 hour
... Automatic resumption of work after a power failure (auto-restart)

Affordable quality

The traditional quality of Mitsubishi Electric, inverter technologies that provide quick access to operating mode, low power consumption and no inrush currents, comfortable noise level, and everything described fits into reasonable prices - these are the characteristics of the Classic inverter series.

Where additional features or design don't play a big role, the Classic inverter is the best choice.

Antioxidant filter

The antioxidant filter has a catalytic coating of active substance.

This substance belongs to the group of flavonoids, which reduce free radicals to chemically inactive compounds.

It is very important that the active substance is a catalyst, that is, it does not itself participate in the reaction and is not consumed.

Therefore, the service life of the antioxidant filter is at least 10 years.

Typically, the catalysts are coated onto polypropylene fibers in the form of a film.

However, during use, the film is quickly erased. Mitsubishi Electric engineers have embedded antioxidant molecules in ceramic fibers, which in turn are brazed into a polypropylene mesh.

Therefore, the antioxidant filter can be washed and wiped clean.

Automatic damper

The horizontal air damper closes automatically when the air conditioner is turned off.

At the same time, it completely hides the air supply hole and the elements of the air distribution system.

Lumped winding motor stator

The stator is characterized by the use of a lumped type winding as well as a special stator pole structure called "Poki Poki Core".

Such a winding can be laid on the core in the unfolded state.

Mitsubishi Electric's engine manufacturing method significantly improves efficiency.

Fan DC motors

To reduce power consumption, high-efficiency non-contact DC motors are installed in the indoor and outdoor units of air conditioners to drive the fans.

The rotor of such a motor has an external permanent magnet located on the surface of the rotor.

These motors have increased torque at low rpm, which has reduced the fan speed and reduced noise from the outdoor and outdoor units.

Internal knurled tube

In the manufacture of heat exchangers, a more expensive tube with internal knurling is used, which leads to an intensification of heat transfer and an increase in the energy efficiency of the system.

Today, split systems are popular to maintain a favorable indoor climate. They consist of two parts: an external and an internal unit. The outdoor unit of the air conditioner is of key importance for quality work equipment. We will understand its structure, principles of operation and features of installation and maintenance.

Equipment device

The external unit of the split system is called the condensing unit (KKB). It is a key element of climate control equipment that provides cooling or heating by changing the state of the refrigerant (working substance). KKB is a building that houses:

compressor;
condenser (heat exchanger);
expansion coils;
capillary tubes;
4-way valve;
filter drier (receiver);
fan.

The outdoor unit of the air conditioner is connected to the equipment in the room through a system of freon (heat-insulating copper) lines. There is a drainage line from the indoor unit to the outdoor unit.

KKB body is made of galvanized steel.

Features of the complete set

A number of KKB models are equipped with a special "winter kit". It is designed to maintain the performance of the device in the winter season when low temperatures... The winter kit works only for cooling, therefore it is optimal for installation in server rooms and other rooms with high level heat dissipation.

It includes the following elements:

The fan controller turns off ventilation and turns it on when the condenser heats up.
Heated drain tube.
Compressor crankcase heating before starting.

The general principle of operation of a split system can be described as follows: warm air is removed from the room and taken out into the street, cooled air is supplied in the opposite direction, which loses temperature, passing through the air conditioner and contacting with the refrigerant.

When switching the split system mode to heating, the reverse process occurs. The outdoor unit draws in cold air from the outside and raises the temperature to the desired level. The indoor unit supplies heated air to the room.

KKB works at the expense of physical properties a refrigerant that transfers energy when the state of aggregation changes.

The outdoor unit of the air conditioner works as follows:

The working substance is supplied from the container to the compressor in a gaseous state.
From the compressor under high pressure the refrigerant enters the condenser, where it turns into a liquid, giving off heat.
Having lost some of the energy, freon enters the highway.
From the line, the working substance passes into the throttling device, where it loses pressure and cools.
The cold liquid is transferred to the evaporator, where it actively circulates through the tubes.
The evaporator is blown with warm supply air by means of a fan.
Cold air is supplied to the room.
Warm supply air heats up the heat exchanger by passing through it before entering the room.
The heat exchanger heats up the refrigerant, which turns into gas.
Freon, passing into a gaseous state, gives off cold to the air. From the heat exchanger, the gaseous refrigerant flows back to the compressor, where the process is repeated.
A closed cycle of work is created.

main parameters

When choosing and buying an external block of a split system, you need to pay attention to four main characteristics:

Size, height, width, length.
Power.
The length of the lines.

The dimensions of the outdoor units depend on the power and functionality of the equipment.

Average dimensional characteristics of the outdoor unit of the split system:

width 80 cm;
height 50 cm;
thickness 30 cm.

The models on the market can have different capacities. It all depends on the purpose of the equipment. A standard household split system has a capacity that allows you to cover an area of up to 100 sq. m.

An important characteristic of the outdoor unit is noise. If the air conditioner operates without noise in the room, then external block can cause significant inconvenience to neighbors. When choosing a model, it is better to clarify the indicator of the noise produced during the operation of the external unit. The admissible indicator is 32 dB.

It is also necessary to pay attention to the permissible length of the connecting lines between the blocks.

Do not exceed the distance that is stated in the technical data sheet of the model, since this can lead to a serious decrease in the efficiency of the equipment.

Installation of an outdoor unit involves several stages. At the first stage, the installation site is determined, equipment and tools are prepared. At the second stage, the marking and direct fixation of the equipment is performed. At the third stage, performance checks and testing are carried out.

Seat selection

Structures of modern buildings ( apartment buildings, shopping and office centers) provide for the installation of air conditioners and split systems. This moment is laid even during the design. Special boxes are mounted on the facades of buildings. They serve two key purposes. First, the likelihood that the fasteners will be poorly executed is minimized. Secondly, the boxes are harmoniously integrated into the design of the building and do not spoil its appearance.

If there are no boxes in the building, then the choice of location must be made taking into account the following factors.

General rules for choosing a location for an air conditioner:

The unit is mounted on the wall adjacent to the apartment. You cannot fix the device on the "territory of neighbors". Before starting work, it is necessary to clarify the availability of the possibility of installing air conditioners on the facade of the building. The city authorities may issue a decree according to which such works are prohibited, since they spoil the historical or cultural appearance of the building. There may be other reasons for the ban.
The optimal mounting locations are considered to be the space under the window, slightly below the window sill, and the place to the side of the window. This arrangement will make it easier assembly work and will allow easy maintenance.
If the block cannot be mounted on the facade, you can install it inside an open balcony or loggia.

Installation tool

Before starting work, be sure to prepare a set of tools. To mount the outdoor unit, you will need:

puncher;
a drill for drilling a hole in the wall through which the line will be laid;
drills for making holes for fixing brackets;
a vacuum pump that removes moisture and air from the freon circuit;
gauge manifold for connecting the refrigerant cylinder to the container in the block;
a set of rollers, which are needed for rolling copper pipes when connected to air conditioner valves;
pipe cutter for cutting copper pipes;
pipe bender for forming bends on tubes;
standard set wrenches, hexagons, screwdrivers, nippers, level gauge.

When installing, be sure to take into account the following rules:

Availability of fresh air supply. It is impossible to mount the outdoor unit in a closed space without air access and or with limited air supply (glazed loggia). Such an error will lead to overheating and damage to the KKB.
During operation, you will periodically have to change the refrigerant. For this, the valves must be positioned so that the master can freely and without risk replace them. On most models, the valve is located on the left side.
It is necessary to provide for a competent drainage of condensate so that it does not fall on the walls, canopy or sidewalk.
Fasteners must be mounted on supporting structures, which must be designed for a load of several tens of kilograms. Do not fix the brackets on aerated concrete walls, on an external decorative facing layer or on a layer of insulation.
The distance from the wall to the unit should be at least 10 cm. This distance will allow for ventilation and reduce the risk of overheating of the device. The distance from the wall to the inner wall of the unit must not be too great. It is impossible that direct sunlight falls on the hidden wall of the block.
When laying connecting lines, a large number of bends should be avoided, since they will lead to a decrease in the required intensity of the movement of the refrigerant, this will reduce the efficiency of the air conditioner.
It is recommended to equip a cornice that will protect the external unit of the air conditioner from direct moisture ingress.

Wall mounting is carried out using special brackets, which are usually included in the package. It looks like a profile of various sections bent at an angle of 90 degrees. It has several holes: some for fixing to the wall, others for mounting the unit. The bearing capacity of the brackets exceeds the weight of the air conditioner several times, so their use will ensure safety and reliability.

Installation process

Step-by-step instructions for installing an external air conditioner unit:

The arrangement of the block on the wall, holes and channels for the main lines are marked. The key parameters mentioned above are taken into account.
Holes for brackets are made in the wall.
A hole is made in the wall for communications. A box is laid in the hole, into which the freon and drainage lines, electrical wiring are laid.
Brackets are fixed. To fix them, anchor bolts or dowels with "wood grouses" are used. The block is mounted on the brackets. It is fixed with bolts.
Strength, reliability and stability are tested.
The freon tubes are chamfered and flared. The tubes are connected to the block.
Wires are being put into KKB. Their optimal length is measured, they are stripped and connected to the terminal block. Each wire is connected in accordance with electrical circuit, which must be attached to the technical data sheet of the device.
After installing the indoor unit, a vacuum pump is connected to the KKB, with the help of which air is dehumidified and evacuated from the lines and internal elements of the unit.
A protective box is put on.
The container for the refrigerant is filled with freon. A test run of the equipment is carried out, the modes and correct operation are checked.

Breakdowns and malfunctions

Like any other appliance, the outdoor unit of the air conditioner may break. At low temperatures in winter, using the air conditioner without a winter kit may damage the compressor. The outdoor unit cools and freezes under the influence of external natural factors. Under such conditions, freon cannot boil in the external unit. Liquid refrigerant enters the compressor, which leads to its breakdown.

To avoid compressor breakdowns from freezing of the outdoor unit, you should install a winter kit or use the device in accordance with technical instructions: heat the room only in autumn and spring when outside temperatures are positive.

Another possible type of mechanical failure is the failure of the fan, which pumps air into the unit. Premature fan wear can be caused by dirt and dust getting inside the unit.

Malfunctions in the electronics are associated with the failure of the control and regulation boards. There may be problems with the integrity of electrical networks.

Maintenance and care

In normal operation, the outdoor unit requires a routine maintenance inspection once every 6 months. The foreman inspects the fasteners, checks the integrity and level of contamination of the filters, specifies the amount of refrigerant and measures the operating pressure of the networks.

The greatest difficulty in servicing is the replacement of the working fluid.

The refrigerant is chemical, which poses a danger to health, so you should entrust the work with it to a professional craftsman. You can check the condition of the filters, remove dust and dirt yourself.

Basic requirements for brackets for installing an outdoor unit of an air conditioner:

The bracket must be strong but not heavy and can support the weight of the outdoor unit of the air conditioner. And also it must fit the diameter of the holes.
Depending on the weight of the equipment, the brackets must have an adequate margin of safety. The minimum allowable figure is twice the weight of the outdoor unit itself.
Meet the requirements of GOST for climatic technology. The material must withstand any temperature regime and have anti-corrosion and antioxidant coating.

Outdoor unit mounted on rectangular brackets

Recently, an increasing number of manufacturers have resorted to the manufacture of brackets from of stainless steel, due to the susceptibility of metal to corrosion from the ingress of water on their surface.

The most common types of brackets used in the installation of air conditioners

Air conditioner contracting companies use several types of brackets. Among them are the following:

Fasteners at right angles, made of welded together rectangular metal corners with a thickness of 2-2.5 millimeters

Rectangular brackets

Brackets of this type are characterized by ease of manufacture, which is why they are cheaper than their thicker and stronger counterparts. but given type fasteners are not quite reliable and suitable for long-term use, since it has a rather small margin of safety. When vibrated, it is subjected to strong stress, which can damage the protective seam. When the anti-corrosion coating begins to disperse, the brackets become vulnerable to the harmful effects of water and other particles that can compromise the integrity metal structure.

U-shaped metal fasteners, interconnected. Like the previous sample, they have a 90 degree right angle. The thickness of the material is 2-2.5 millimeters and is held together with special bolts.

This design is more expensive than conventional rectangular brackets, but it is more reliable. Vibration is applied only to the connecting element, while the load on the rest of the structure remains minimal. At the same time, galvanized bolts are not subject to corrosion and oxidation. The cover of the brackets reliably resists the harmful effects of moisture and other atmospheric particles.

U-shaped metal structure with an elongated body, fastened at the bottom with an additional section of the channel. The thickness of the metal elements is 2 millimeters.

In appearance, this design seems to be the most reliable of all. Despite the small thickness of the metal elements, the structures can successfully withstand blocks of almost any weight. They do not deform with constant vibration, which guarantees a long service life of the brackets. The coating reliably protects the structure from negative atmospheric influences, preventing deformation, corrosive and oxidative processes in the metal.

Rectangular structure of two straight metal corners with a thickness of 2-2.5 millimeters

This type of brackets almost completely copies the first sample. The difference between them is that here both corners are fastened together with a connecting metal bar, which significantly strengthens the brackets, allowing them to withstand blocks of almost any weight. All elements are connected to each other using bolts. The bar relieves the load on the fasteners, and the coating reliably prevents the occurrence of corrosive and oxidative processes due to the negative effects of moisture and atmospheric precipitation. The connecting strip greatly simplifies the mounting of the brackets.

All of the above samples of almost any outdoor unit. The size of the brackets for air conditioners is traditionally about 40 centimeters in length for the vertical mounting sections.

The choice of the bracket for attaching the external unit of the air conditioner should be approached as responsibly as possible. First of all, make sure that the lifting capacity of the bracket is twice the weight of the outdoor unit. This is necessary because the ice periodically covering the block significantly increases the weight of the equipment.

The holes on the fasteners must match the bolts and other fixtures for the brackets. It is strongly not recommended to drill additional holes: this can damage the protective layer of the elements, as well as reduce their carrying capacity, which will accelerate corrosion and oxidation processes as a result of the negative influence of moisture and atmospheric precipitation. But it is also fraught with skewing or collapse of the entire structure under the weight of the weight of the external unit of the air conditioner.

And also pay attention to the anti-corrosion coating. The traditionally used enamel, although it reliably protects the metal from the negative effects of moisture and atmospheric precipitation, loses its properties after a year and a half, which can contribute to deformation and corrosion of the metal structure. More reliable is polymer coating: it penetrates deeper into the material and better protects the metal from corrosion.

Among all anti-corrosion agents, zinc plating is recognized as the best. Experts guarantee that galvanized brackets will last at least ten years. The split system itself can last about the same.

Above, we examined what types of brackets are and what are their main advantages. To purchase a high-quality bracket and not make a mistake with the choice, a few practical tips will help:

When purchasing brackets yourself, do not forget to make sure that the product itself is certified. By law, the seller is obliged to provide the relevant documents. If the product is not certified, it is better to refrain from purchasing it - there is a possibility of counterfeit or poor-quality processing. In this case, the reliability of fixation is significantly reduced, which can lead to the collapse of the structure itself and the external block installed on it.
Fasteners must correspond in area to the length and width of the unit to be installed. The maximum permissible load should be twice the mass of the block itself, which will save the brackets from collapse when ice forms on the block itself
Among all the same products, focus on value for money. If the unit is fairly light and the vibration level is low, then regular rectangular brackets will work for you. For heavier blocks, a U-shaped structure reinforced from below is useful. A sales assistant can help you here, who will tell you which type of brackets is more suitable for your air conditioner.
How easier product, the easier it is to install and the stronger it is. If you are installing the bracket yourself, then a rectangular bracket is suitable for you, whose sections are fastened together with a metal bar. These brackets are best for those who install the brackets alone.

Thus, almost any brackets are suitable for the outdoor unit. The higher the permissible load level, the more reliable the structure itself. With proper operation, the fasteners will serve you for at least ten years, which is comparable to the service life of the split systems themselves.

Which brackets do you prefer for attaching the outdoor unit of the air conditioner?

Air conditioning has long been a common household appliance. Of all the variety of devices for air cooling, the most popular are split systems, consisting of two unit-blocks, one of which is installed outside the room, and the other is inside. The indoor unit of an air conditioner is a complex device that takes away warm air from the room and sends it back already chilled.

Any air conditioner functions due to the properties of liquids to emit thermal energy when liquid is released and absorb heat when it evaporates.

The indoor unit is always placed indoors (usually mounted on a wall or ceiling), while the outdoor unit is located outside of it. Both units are interconnected by electrical wiring and a copper pipeline, through which freon continuously circulates during operation.

Regardless of the design and dimensions, the internal block of the split system necessarily has the following components in the design:

Compressor. Responsible for the compression of the refrigerant and its circulation in a closed loop.
Evaporator (heat exchanger). In this radiator, freon is converted from liquid to gas.
Fan. Forces the air flow to the evaporator.
Thermostatic expansion valve. Helps to reduce the pressure of the refrigerant in front of the evaporator. As a rule, it is a thin, coiled, copper tube.
A set of filters. Retains dust and larger fractions of debris that are inevitably contained in the room air.
Air distribution system.
Louvers responsible for the direction of the air flow.
Temperature sensors.
LED indicators.
Information table.

Indoor unit design

Note! Since the indoor unit of the split system is often located at an unattainable height, the device always contains a remote control in the kit.

The external unit is simpler, and instead of the evaporator, the device has a condenser - a unit responsible for the phase transition of freon from a gaseous state to a liquid state.

The introduction of new technological solutions into household equipment often runs counter to practical feasibility. An example of climatic technology is most indicative in this sense. So, recently, the market has been actively filled which are intended for indoor use. The features of such systems include the complete exclusion of dirty installation operations, which attracts a large audience of consumers. But with all the convenience of installation and further maintenance, such models are not able to approach the performance characteristics that are provided by an external air conditioner unit as part of a split system. Another thing is that the owners of outdoor installations have to deal with troublesome tasks, but of a different kind.

What is an external unit?

The outdoor segment, which is part of the split-system complex, includes a condenser, valve isolators, pipes, filter driers and a fan. Depending on the modification and design, the internal "filling" may change, but a traditional set of an air conditioner with a remote block has just such a set of elements. By the way, the most noticeable differences are observed in the so-called winter systems, which provide for the presence of special controllers to control the fan. Modern air conditioners also use multifunctional power switching relays. Such devices are designed for non-standard compressor operation in conditions of high or low temperatures. Unlike the indoor segment, the outdoor unit does not have electronic modules - its operation is completely subordinated to the mechanical function.

Block dimensions

The outdoor unit is available on the market in various configurations and shapes. And although manufacturers, in order to simplify segmentation, seek to unify model lines, the choice of standard sizes is still quite wide. If we talk about average parameters, it is 770 mm wide, 450 mm high and 245 mm thick. At the same time, the fan radius on average varies from 200 to 250 mm. Of course, there are also aggregates whose dimensions deviate from these indicators. So, in the Mitsubishi lineup, an almost square external air conditioner unit is presented, which is 880 mm in width and 840 mm in height. As for the parameters of the inner segment, they are not so impressive. Usually these are long narrow modules of medium size - 700 x 200 x 200 mm.

Choosing a place to install the unit

Usually, when choosing the optimal point for installing air conditioners outside, users are faced with the problems of combining ease of use and protection of the module. For example, the location of the block at the height is the best option from the point of view of its safety, but in this case it becomes more difficult to access the air conditioner for maintenance purposes. A good solution might be to place the module on the wall near a window opening or loggia. At the same time, other nuances must be taken into account, including the absence of direct rays of the sun and permission for installation from the neighbors, since a noisy unit can cause inconvenience to people living at the same level of the building.

In addition, it generates condensation, which will drip downward. Accordingly, you will have to negotiate with the neighbors on the lower floors. In case of successful coordination of the installation site of the unit with other residents, you can proceed to direct installation operations. By the way, another condition for the installation of the outdoor unit is the possibility of laying communications in the wall.

Installation of the outdoor unit of the air conditioner

When installing air conditioners, special mounting kits are used, which include pipes with flex, brackets with sets of fixing hardware, drainage communications, etc. The physical installation of the segment is carried out using load-bearing components that are embedded in the walls using anchor elements. At the same stage, brackets are used, the power potential of which is focused on the mass of a particular module. Also, the installation of the external unit of the air conditioner provides for its communication connection with the internal segment. To do this, a hole of the required diameter is made in the wall, which will allow organizing, in addition to the main wiring, also the laying of the vacuum pump and gauge manifold. At the final stage, the communications are directly connected between the two blocks.

Features of installing the indoor unit

When installing the evaporative, that is, the indoor module of the air conditioning system, it is especially important to maintain the correct position of the unit. Usually this unit is mounted directly under the ceiling surface with a slight indentation. Mechanical fixation is also done with suitable brackets. True, in this case, the mass of equipment is not so great, which simplifies the workflow. After marking, the master installs the anchoring elements and, if necessary, fixes the supporting profiles. Next, the indoor unit of the air conditioner is installed with strict observance of the horizontal position. Also, some models of such segments, according to the instructions, should have a slight slope towards the drainage passage.

Maintenance and care

In normal operation, the air conditioner must be serviced every six months. Most of the work is carried out with the external unit, which is most susceptible to contamination. Specialists usually check the condition of the filters, the refrigerant level, the operating pressure of the module route, etc. The most difficult operation is the replacement of the working fluid. The refrigerant is a chemically unsafe substance, so it is better to trust its refueling. experienced craftsmen... But taking care of the rest of the components is quite affordable for ordinary users. For example, the answer to the question of how to clean the external unit of the air conditioner is quite simple. First of all, it should be disassembled, after which, using a rag or a vacuum cleaner, rid the inner surfaces of the module from dust and dirt deposits. In the process of such maintenance, external filters and heat exchange radiators are cleaned, which prolongs the life of the air conditioner.

Outdoor unit in multi-systems

The concept of technical implementation of a split system provides for the possibility of using several indoor modules in one complex, which are served by one outdoor unit. Unlike standard configurations, the external module of such a system has engineering differences. For integration into a multi-system, it is equipped with an additional thermostat, which allows more efficient control of the fan and compressor settings. In turn, the indoor unit of the air conditioner acts as a source of information signals that determine the control of the outdoor unit. That is, the user, using the remote control, accesses the panel of the indoor unit, and that, in turn, through the digital channel, regulates the bypass communications system on the freon line.

Price question

In modern modifications, split-system air conditioners are not cheap, which is largely due to the complexity of the design. Even in the entry-level segment, the cost of an air conditioner with a remote unit is rarely less than 20 thousand rubles. Of course, you can find options for 15 thousand rubles. from little-known brands, but their quality raises doubts both among specialists and among users themselves, who often complain about problems.

Decent quality models are offered by Fujitsu, Daikin, Mitsubishi, etc. average cost air conditioner from the assortment of these companies varies in the range of 30-40 thousand rubles. At the same time, the most technologically advanced and productive sets can be estimated at 70-80 thousand rubles.

Conclusion

The use of air conditioners with a design involving the installation of an external unit gives rise to many problems during installation and further maintenance. And this is without taking into account the difficulties in transporting equipment. These factors make it possible to speak of such units as morally obsolete. Especially against the background of the proliferation of mobile devices of modest size. Nevertheless, the outdoor unit of the air conditioner remains relevant in the market. This is explained by its high performance, functionality and safety during operation, since the main working units are located outside the living quarters. And if for domestic use it is possible to find a low-power replacement for a split-system in the form of a monoblock, then in the context of servicing office premises, public buildings and institutions, multifunctional complexes still have no equal.