Multi split system for three rooms. Multi split system with three indoor units How to choose and buy a multi-split system for three rooms

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Multisplit system for 3 rooms

We bring to your attention the most optimal sets of multi-split systems for 3 rooms of an apartment or office space. It should be understood, the principle of selecting frequently requested sets of multi-split systems for 3 indoor units. Each 3 room multi split system is completed based on the most common specifications provided by our customers, where the main parameters are room volumes, ceiling height, ceiling drop and distance from the outdoor unit to the indoor units. Together with the manufacturers, we have tried to provide our customers with information on the pricing of a multi-split system for 3 rooms, but we ask you to take into account and provide our engineers individual characteristics your residential, office or other premises.

Common mistake when choosing a multi-split system with three indoor units, this is ignoring the total length of the freon route and high-altitude differences. When choosing a unit only according to the cooling capacity of the indoor units, there is a risk of a quick failure of the compressor and the absence of those climatic parameters that were planned at the stage of selecting a multi-conditioning system for 3 units.

For an accurate and professional selection, please inquire specifications in the operating company, independently or together with our technical specialists, draw up a technical assignment for the selection and installation of a multi-split system air conditioner for 3 indoor units.

The BerMiNa Group team makes every effort so that you can purchase a multi-split system for 3 rooms without wasting time, while providing prices from manufacturers. We are working to ensure that you can buy the latest novelties in Moscow, Krasnodar and Nizhny Novgorod.

Multi split systems for three rooms gained wide popularity both among the owners of large apartments and private cottages. The advantage of choosing such a split system is in rational use space and energy savings. When installing a multi-split system, only one outdoor unit is installed, to which all indoor units are connected. At the same time, any variability of configuration is allowed - the buyer can choose indoor units of various capacities and even types (depending on the area and design features of the premises). So, wall, ceiling, floor-ceiling and other indoor units can be connected to the outdoor unit.

The choice of outdoor unit is determined by the required total capacity of all indoor units. Functionally, the indoor units of a multi-split system are no different from standard air conditioners, with the exception of more convenient control and energy efficiency. The energy consumption of the equipment depends on the energy efficiency class. The most economical and reliable models are split systems with an inverter compressor type.

Multi split system for 3 rooms has such advantages as:

• stylish, modern design;
• wide range of configuration options and appearance internal blocks;
• deep efficient air purification using the best filters, including photocatalytic, plasma and anti-allergic HEPA filters. The cleaning depth reaches 99.9%;
• convenient control from one remote control, including the ability to set an individual operating mode for each indoor unit;
• optimal power consumption;
• multifunctionality (heating, heating, ventilation, dehumidification, air ionization);
• the minimum noise level that allows you to equip a room with an air conditioner for any purpose, incl. bedrooms, children's rooms, study rooms, etc.;
• a wide range of models.

In our online store you can buy multi-cooker systems for 3 rooms from leading manufacturers, including such well-known brands as Daikin, Mitsubishi Electric, Dantex, Panasonic, LG and others. Models are presented in a wide price range, so you can choose a split system based on your budget, stated requirements, design features and floor space.

In this article: the history of the creation of multi-splits; their difference from conventional split systems; pros and cons of multisplits; climate systems with one and several compressors; multi-block air conditioner - compare and choose; What should be considered when installing a multi-split.

Such familiar and seemingly well-known split systems turned out to be not at all simple - behind the brand, series and price, more is hidden than the natural desire of manufacturers to extract maximum income. It's simple - you want the split to supply only cold air, then get a cheap model, if you need a really comfortable atmosphere in the house, then only cold air will not be enough here.

We continue to publish materials about climate technology - let's talk about multi-splits and find out what kind of air conditioners they are.

One outdoor unit for multiple indoor

In the early 1930s, the division household system air conditioning for two units was not just a whim of the inventors, but a necessity - poisonous ammonia was used as a refrigerant in those years, the leakage of which was unacceptable. With the discovery of a new type of refrigerant - freon - the situation has changed, since it was safe for humans. Household air conditioners became monoblock, intended for installation in window openings. Years later, Japanese air conditioner manufacturers again returned to the two-unit design - Toshiba developed the first split systems, and Daikin went further, creating in 1969 a household climate control device from one external and two internal units, called the multi-split.

Household version of multi-zone air conditioning systems - multi-block air conditioners - are used to control climatic conditions in large rooms, separated by airtight partitions. Because the outdoor unit only one, then the curtaining of the facades of buildings with dozens of blocks from split systems, which is characteristic of our time, does not occur, i.e. the original architectural appearance of the buildings remains unchanged.

Multisplits are produced in two design solutions - with one and several compressors. The number of indoor units for models with one compressor is limited only by the compressor capacity, i.e. the total power of the hair dryers should not exceed the power of the outdoor unit (ideally, the compressor power should be about 15-20% higher). Buyers are offered multi-splits of this type with a standard set of indoor units or future owners of a split system can separately purchase an outdoor unit, and then pick up required amount internal hair dryers to it. Systems with several compressors in the outdoor unit (no more than 3) are designed to work with a limited number of indoor units, equal to the number of compressors - one compressor for one hair dryer unit. The difference between multi-splits with one and several compressors is that the indoor units in the first type of air conditioning units are able to operate only in the same mode - either cooling or heating, and the hair dryers of multi-compressor air conditioners operate in modes independent of each other.

Air conditioning systems of this type are equipped with conventional and inverter compressors, indoor units can be either wall or ceiling, floor, cassette or duct. General principle operation of multisplits is identical to household air conditioners of other classes. Models equipped with an inverter compressor have some advantage in terms of energy savings - the system electronic control is able to extract heat or cold from empty rooms served by a multi-split, transporting them to rooms with an increased load on the climate system. For example, if several people gather in the hall of the house in summer, then the multisplit will take the cold from other rooms (bedrooms, children's rooms, etc.), the climate in which is brought to the level set by the user. During installation of the outdoor unit, one direction of the refrigerant pipe is set as priority - this room will be serviced by the climatic device with special care. Usually this is a room with the largest number of working equipment (for example, a server room) or the constant presence of a significant number of people.

Multisplit Characteristics

Air conditioning multi-systems are ideal for installation in buildings classified as cultural monuments and houses, architectural design which does not allow to equip interior spaces conventional splits - the outdoor unit can be placed outside the facade, for example, on the roof. Regardless of the installation location of the outdoor unit, significant space savings are achieved, because for two-block split systems it will need more space - a multiple of the number of indoor units.

Reducing the number of outdoor units to one reduces the cost of maintaining the climate system - topping up refrigerant, cleaning, preventive maintenance, etc.

The user gets more freedom in choosing the power of the indoor unit-hair dryer for each served room, depending on its area, the number of people constantly present and the number of working equipment.

The power supply needs to be pulled to only one external unit - the indoor units of the multisplit receive electricity through the cable from the compressor unit.

Inverter multi-splits are more economical than two-unit split systems with an inverter compressor.

Let's move on to the negatives. The first disadvantage of multi-block splits is that in the event of a breakdown of the units in the external unit, the air conditioning system will fail completely.

All multi-splits are more expensive than their equivalent power models with one outdoor and one indoor unit. At first glance, this looks strange, since there is only one external unit - the higher price is due to the fact that the installation of such an air conditioning system is more difficult to perform, taking into account the several times longer route for the refrigerant, complex scheme channels for condensate drainage and a significant mass of the outdoor unit (over 50 kg). Multisplits are equipped with more complex system control responsible for temperature conditions in each of the serviced premises separately, which requires fine tuning of the compressor and ventilation unit. Also, the prices for equipment of this class are regulated by the manufacturers themselves, who prefer to maintain prices for high level to give it more status.

Given the high compressor power, the outdoor multi-split unit produces more noise during operation than a conventional split.

Choosing a multisplit

I propose to investigate the characteristics of external units, which will not be easy for the buyer to choose - first you need to choose them, and select internal hair dryers after. IN comparative review external units from multi-systems of popular Japanese manufacturers Mitsubishi Electric, Daikin and Toshiba, which have equal cooling capacity, will take part.

(*) - the external unit of any split system is involved in cooling or heating the refrigerant, the ventilation and dehumidification functions are performed by the internal unit(s);

(**) - usually, hair dryers are selected for the external block of a multi-split at the rate of one block per room. The power of each indoor unit is determined by the size of the serviced room, its location - from the interior features of the room.

MXZ-2C52VA, Mitsubishi Electric

Let's analyze the collected information on the external blocks of multisplits:

• among the models under consideration, the Mitsubishi block has the highest energy efficiency, i.e. its efficiency is higher than that of the other two;
• the Mitsubishi block weighs more than the other two - it must be installed on a solid foundation (hollow bricks will not work). Toshiba's model weighs almost 10 kg less than others, so there are fewer requirements for its mounting base;
• the device from Mitsubishi allows you to stretch the longest line to it without additional injection of refrigerant;
• all three models are made in Thailand, have the same warranty period and will last approximately the same time;
• the blocks in question are produced by the largest manufacturers of climate technology in the world;
• all units are equipped with inverter compressors providing efficient work air conditioning systems in heat pump mode;
• only a Daikin brand unit allows more than two indoor units to be connected to it. As a result, the climate system, composed of three internal hair dryers, will create a favorable atmosphere in three rooms isolated from each other at once;
• Toshiba brand external unit has the lowest cost.

3MXS52E Daikin

Conclusion: according to the results of the analysis, it is not possible to unambiguously recognize one of the three considered models as the best, since each of them has unique pluses and minuses - the Mitsubishi unit consumes the least amount of electricity, the Daikin device is able to work with three indoor units simultaneously, and the Toshiba outdoor unit costs less than others, although it is inferior to them in a number of parameters. The final decision remains with the homeowner - what is more important to him, energy efficiency and performance, the number of units in the multi-split system or the total cost of the air conditioning unit.

RAS-M18GAV-E, GAV series, Toshiba

Features of installing multisplit air conditioners

The first and most important task is to determine the installation location of the outdoor unit. Unlike split systems, the external blocks of multi-splits must be set so that the length of the freon line leading from them to each indoor unit does not exceed the maximum allowed by the manufacturer, otherwise the quality of the climate system will seriously decrease.

It is best to install an outdoor unit on the roof of the building, so that it will not “decorate” the facade with itself, and it is much easier to carry out preventive maintenance with its acceptance upon the fact of work in this case. If the installation of the unit on the roof or facade is impossible for some reason (for example, due to the excess length of the freon line), then it is mounted in the attic, balcony or basement. However, placing the outdoor unit in a closed room is undesirable, because with insufficient ventilation, it will overheat, which will lead to frequent shutdowns of the system and increased wear of the units.

Now about the tubes and wires connecting the multi-split blocks to each other - installers invariably want to run them along the facade of the building, closing the outside with an unattractive plastic box, because. it is easier to do this than to pull communications through the shafts inside the building. In the case of a sufficient distance between the blocks, you should insist on the hidden installation of the line, since it should not be under the influence of a changeable external atmosphere.

Regardless of the type of indoor unit you choose (wall-mounted, cassette, etc.), it is necessary to solve the issue of draining condensate from the hair dryer at the stage of installing the multi-split - ideally, it should be discharged into the sewer system.

To solve an air conditioning problem, multi-split systems are more suitable than others if:

• the rooms to be serviced by the climatic device are in the stage of rough repair (i.e. without wall finishing) - laying the freon line into the walls in this case will cost less;
• near the serviced premises there is a balcony of sufficient area where you can install an outdoor unit;
• the windows of the rooms where it is supposed to install the indoor units of the multi-split, go to one side of the house - in this case, the length of the pipeline will be the smallest and will not go beyond the norms established by the manufacturer.

At the end

Focusing only on the cost of the external multi-split unit will be wrong - depending on the power, the number of functions performed and the manufacturer, the internal units will also cost a considerable amount (on average, the price of one hair dryer unit will be 25,000 rubles).

In the following article, you will learn about ceiling-floor split systems, about them technical specifications and functional features.

Abdyuzhanov Rustam, rmnt.ru

How does a multi split system for 3 rooms work? On the technical side of the issue, everything is implemented quite simply. The internal elements included in the kit are installed where it is required by the owner of the premises, while a single external unit is mounted on the outside of the building on:

• facade.
• roof.
• Balcony.

Or at any other suitable point where there is an influx of fresh air. All these functional elements are combined into a single network with the help of pipelines into which an inert gas (usually freon) is pumped. Nevertheless, despite such unity, when a multi-split system is installed, 3 units are able to maintain different temperature conditions, independently of each other. This makes it possible to provide optimal parameters microclimate individually for each room.

It should be noted that not a single multi-split system for 3 rooms, which you can buy from us, can simultaneously function in the modes of air conditioning and heating of air masses. This is due design features such air coolers presented to your attention in a wide range.

When is it worth buying a multi-split for 3 rooms

Despite the advantages of such a technical solution, the purchase of equipment is not always justified. Although the price for equipment such as a multi-split system for 3 rooms is lower than for separate air conditioners, the difference will be offset by the cost of installation.

Therefore, such devices should be chosen in cases where many bulky external units cannot be mounted on a building. That's why the best option this technique will become:

• Buildings of historical and cultural value.
• Buildings, the facade of which overlooks busy highways.
• Private houses and cottages.

And in our online store you can buy split systems for three-room apartments from the world's leading brands at the lowest price in Moscow!

The optimal temperature in the room can be provided by split systems with a “remote” outdoor unit. For creating comfortable conditions in all areas of the apartment, multi-split systems for 3 rooms are suitable.

Device

Split system is a complex type of air conditioner, which includes two blocks: external (compressor-condensate unit) and internal (evaporative). outdoor unit mounted outside the building on the wall. The indoor unit (air conditioner) is mounted indoors.

A compressor and condensate unit (CCU) is an element of climatic equipment that performs the function of refrigerant movement in a closed cycle.

KKB consists of several parts:

• compressor - compresses the working substance;
• condenser (heat exchanger) - cools;
• choke (expansion coil) - expands.

KKB includes additional working elements: an engine for a compressor, capillary tubes, a fan. The throttle with a drying filter and a solenoid valve is combined into a KKB piping.

The evaporator unit is a part of the climatic equipment that performs the function of transferring the refrigerant from a liquid to a gaseous state with heat absorption. The evaporator consists of:

• cooling coil;
• long fan;
• air filters.

The indoor unit can be equipped with additional functionality: remote control, air purification filters, timer, smooth temperature control modes.

The outdoor unit is connected to the indoor heat-insulating and drainage main.

Power is supplied through special electrical connections.

A refrigerant is a working substance (coolant) that, under the influence of pressure, passes into various states and change the temperature of the surrounding air. During the transition from a liquid state to another, as a result of compression and an increase in pressure, energy is absorbed. The return to the liquid state, with the expansion and decrease in pressure, leads to the release of energy to the outside.

Types of split systems:

• Wall mounted;
• Floor and ceiling;
• Channel;
• Column type;
• Cassette type;
• Central air conditioners;
• Rooftop.

In KKB there is a container with a working substance. refrigerant circulating through copper pipes, cools the air that is supplied to the indoor unit from the street. The room temperature drops.

Modern split systems provide for operation in two modes: cooling and heating.

Switching the mode to increase the temperature in the room leads to a reversal of the use of the refrigerant - it begins to evaporate in the outdoor unit, and condenses in the indoor unit.

Split system operation:

1. The compressor compresses the working substance in the gaseous state.
2. The compressed refrigerant enters the condenser, where heat energy is released during the transition to a liquid state.
3. Having lost part of the heat, the working substance enters the line. The refrigerant maintains an elevated pressure.
4. The working substance enters the throttle and expands sharply, which leads to cooling.
5. The liquid gas enters the evaporator.
6. In the evaporator, the refrigerant is blown with warm supply air from the room using a fan. Heating occurs (the evaporator plays the role of a heat exchanger) of the working fluid, which boils and passes into a gaseous state.
7. When evaporating, the refrigerant gives off cold to the evaporator and takes heat.
8. The gas goes back to the compressor.
9. The process continues in a circular fashion.

When changing the mode to heating, the process occurs in the reverse order. The evaporator takes over the function of the KKB and heats the air due to the transition of the refrigerant from a gaseous to a liquid state. KKB turns into an evaporator.

Advantages

A multi split system differs from conventional equipment of this type in that the device in it allows you to connect several internal elements to one external unit. This configuration looks optimal for installation in three rooms at once.

Advantages:

• Wide functional coverage. different models make it possible to connect from 2 to 9 units with a power of each up to 9 kW. The possibility of a cooling system for rooms with a total area of ​​​​up to 100 square meters. m.
• Variety of technical capabilities. Allows you to select indoor units with the required power parameters for each room.
• Aesthetics and space saving. Mounting only one outdoor unit on the wall of the building. Such a system does not spoil the facade of the building with numerous communication elements.
• Ease of management and maintenance from one point. Regulation of the system operation in all places of installation.
• Profitability. Consumes less resources.
• Acceptable price. Buying one multi split system is cheaper than buying several conventional models. Installation is also easier and cheaper.

Many experts call the key disadvantage of all multi-split systems that all blocks of such equipment can only work in one direction: for heating or for cooling. But this minus is doubtful, because the control system allows you to adjust the settings of each indoor unit separately, that is, in each room you can adjust the optimal temperature.

The only significant disadvantage of multi split systems is that the failure of the external unit will lead to the cessation of the entire system.

The average life of a split system is more than ten years. At correct installation, competent operation and timely maintenance equipment will last fifteen to twenty years.

Models

Presented on the market a large number of split systems of various manufacturers. You can choose models from global corporations, or you can purchase a sample from a company that specializes only in the production of air conditioners and other similar equipment.

Leading brands offering quality multi-split systems include:

• Daikin.
• Mitsubishi and Mitsubishi Electric.
• Pioneer.
• Hisense.
• Toshiba.
• hitachi.

Decent and high-quality models are offered by all leading manufacturers. To choose the optimal and efficient air conditioner for 3 rooms, you need to pay attention to the following parameters:

• system type;
• the number of connected blocks;
• power;
• the volume of rooms that the device is able to cover;
• operating modes;
• the presence of an inverter;
• noise level of external and internal blocks;
• availability of additional functions;
• set of means of fixation;
• filtering equipment;
• the presence of a "winter kit".

It is important not to chase the price when installing. Installation of equipment is a complex and expensive task. Dismantling, in the event of a breakdown or replacement, can cost 50% of the cost of the equipment. It is better to overpay for quality at the stage of initial purchase and installation than to pay later for rework and replacement.

In the northern latitudes, it is worth purchasing systems that provide for a "winter kit".

This equipment allows you to protect the outdoor unit from freezing at low temperatures. When installing, use original parts, especially when installing an outdoor unit.

Installation

Installation of air conditioning systems must be trusted experienced craftsmen, since the efficiency, correctness and durability of the equipment operation depend on the literacy of the installation. The best decision- ordering the installation in the company where the equipment is purchased. So, the performers will be interested in a competent installation, for maintenance and repair, if the work is done well, they will turn to them. In the event of a breakdown, employees will not disappear, because not people are responsible for the result, but the company with which the contract for the purchase and installation is drawn up. It is best to mount the system at the construction stage if it is a private house, or during the period of repair in an apartment building.

The sequence of actions when installing a split system for 3 rooms:

1. Planning of system placement: location of KKB on the facade of the building, location of indoor units in the premises, passage of communication lines.
2. When planning and agreeing, the distance between the blocks, the efficiency of the air conditioner in a particular place, the presence of other engineering networks in the building (heating pipes, water supply, Electricity of the net). It is important to consider the location in the rooms of furniture, household appliances.
3. Marking the locations of blocks and connection lines. Checking the completeness of the equipment.
4. Drilling of openings and chasing of channels on a marking.
5. Laying a heat-insulating line and wires connecting the blocks.
6. Installation of brackets on the facade of the building. Fixing to the brackets of the outdoor unit.
7. Installation of indoor units in rooms.
8. System operation testing.
9. Vacuumization of the route to protect against moisture and foreign objects.
10. Works on sealing holes and sealing channels in the walls.

After installing a split system for three rooms, it is important not to forget about the mandatory system maintenance.

Air conditioning units require annual cleaning, filter replacement and refrigerant renewal.

Violation of the maintenance rules will significantly reduce the efficiency of the equipment, reduce the service life and increase the risk of breakdown.