Alternative installation of the outdoor unit of a split system. How to properly install an air conditioner in an apartment: layout diagrams. Installation of drainage system

To install an air conditioner, as a rule, you need to call specialists who, upon completion of installation of the equipment, will issue you with a document indicating that the work was carried out correctly. If you install a split system yourself, you lose the right to warranty service. But in order to save money, many home craftsmen try to install the air conditioner themselves. In this case, it is worth considering one point: in order to properly connect the external unit of the system with the internal one, and then put the unit into operation, you will need to purchase quite a expensive equipment. In addition, installing a split system is quite a troublesome task if you do it yourself. Purchasing equipment is advisable in the following cases:

  • you plan to move one or more units to new locations;
  • if you purchased several units;
  • you are planning a serious renovation of the apartment, which involves complete dismantling, and then reverse installation split systems;
  • you want to help install a split system for your friends or relatives;
  • If you need this set of tools to repair your car air conditioner.

In other cases, installing an air conditioner in an apartment with your own hands is impractical.

The standard configuration of a split system usually includes such components.

Important! To install the air conditioner yourself and put it into operation, you need to supplement the standard equipment of the device.

Installation materials and tools

To install a split system yourself, you will need to purchase the following materials.


Without special tool also indispensable:

  • pipe bender (how to use, shown in the video);
  • Rimmer-stripping;
  • pipe cutter (you can learn how to use it from the video);
  • rolling (see video);
  • manifold;
  • Vacuum pump.

Selecting a mounting location for the indoor unit

The location of the indoor module should be such that during its operation you do not experience discomfort from the flow of cool air. If you look at the following figure, it will become clear without words what types of ideal options installing an air conditioner in the apartment.

When placing the module above the head of the bed, the flow of cold air will not enter the rest area and will not cause harm to health. Workplace It is recommended to position it so that the air flow is either from the side or from the rear. If the table you work at is located under an air conditioner in an apartment or office, you can install a special screen under the hairdryer to direct the flow along the ceiling.

Requirements for installation of the indoor unit

Exist following rules placement of the indoor air conditioner unit in the room:

  • the distance between the hair dryer and the ceiling must be at least 15 cm (some models are installed at a distance of 20-30 cm from the ceiling);
  • distance from installed unit to the wall on the right or left - at least 30 cm;
  • the obstacle in the path of air flow should be no closer than 150 cm.

Sometimes the question arises: at what height should I hang the indoor module if the room has high ceilings? On average, you can hang an air conditioner on the wall at a height 280 cm from the floor, as it shown on the picture.

The following figure shows examples various options installations that clearly show how best to install an air conditioner.

Requirements for installation of the outdoor unit

The external module of the unit is usually placed under a window, near a window or on a balcony. If the balcony fence is strong enough, then you can fix the module on it.

If the apartment is on the first floor, That outdoor unit it is required to be located at a height of at least 2 meters from the ground, adhering to the rule: the outdoor unit must be mounted slightly lower than the indoor unit, or at the same level with it.

When installing split system modules, you should remember the minimum and maximum distance between them. These values ​​may differ depending on different manufacturers climate control technology. For example, for Panasonic split systems the minimum distance between modules can be 3 meters, and for Daikin – from 1.5 to 2.5 meters.

Some manufacturers do not specify a minimum distance at all. In this case, the blocks can be placed back to back.

The maximum length of the route between modules is usually 6 meters. More is allowed, but in such a situation it will be necessary refilling with freon, which entails additional material investments. Therefore, if produced self installation air conditioner, it is better not to exceed the designated 6 meters.

Installation procedure

The procedure for installing an air conditioner, including inverter air conditioner, implies step-by-step installation all its modules and highways. Installation must be performed following step by step instructions given below.

The rules for installing an air conditioner state that at the first stage you will need to install the indoor unit (hair dryer) of the air conditioner. To do this, follow these steps.

  1. To properly install the air conditioner yourself, take a steel mounting frame and attach it to the wall where the hair dryer is intended to be installed (taking into account all the distances described above). It is important that the frame for installing the air conditioner is placed strictly horizontally(use a building level).
  2. Mark places for fastenings.
  3. Using a hammer drill, make holes in the wall and hammer plastic dowels into them.
  4. Place the plate against the wall and secure it with self-tapping screws.
  5. The hair dryer is suspended on the mount (plate) for the air conditioner, after which it is necessary to check the horizontal position again. If you allow the air conditioner in the room to become distorted reverse side from drainage channel, then the liquid will accumulate in the pan and flow down the walls.

Preparation of communication channels

Do-it-yourself air conditioner installation continues with preparing the channel for the main line. To bring out the freon circuit tubes, power cables and drainage, it is necessary to make a hole of the appropriate diameter in the wall. For this, a hammer drill with a long drill is used. To ensure free flow of condensate to the street, it is necessary to make slight slope.

Outdoor unit installation

Installing an external air conditioner unit is considered the most labor-intensive process when installing split systems. The difficulties arise from the fact that the weight of the module can reach 20 kg or more, due to the compressor located in it. In addition, most often the external module is installed on high altitude.

To begin, make markings using a level. Then use a hammer drill to make holes. Next, anchor bolts are screwed into them, and the brackets themselves are screwed to them with nuts. After the brackets are securely fastened, the external module is installed on them.

When installing an air conditioner, especially an outdoor unit, you will need the help of at least one person. If the module is installed at a high altitude, then you will not be able to install the air conditioner yourself. It is better to use the services of climbers to hang this module.

The outdoor module is attached to the brackets using bolts. It is recommended to place thick rubber under the feet to reduce vibration.

Connecting blocks by communications

To continue installing the split system with your own hands, you need to connect both modules to each other.

  1. First of all, remove the protective plastic covers on the terminals of the external unit. Using the instructions, connect the control and power cables that come from the indoor module to them.
  2. Carefully, in order to connect the modules in the future, make route installation your air conditioner, having previously put thermal insulation on the tubes (the ends are fixed with reinforced tape). To prevent debris from getting into the tubes, also seal their ends with tape. The track is secured with clamps screwed to the wall. After this, measure the length of the line and cut the tubes, leaving a margin of 10 cm. Place union nuts on them and roll the ends. Using a rimmer, remove the chamfer. The laying of a route (main) for an air conditioner can be carried out both outside and inside the premises, if for aesthetic reasons it is prohibited to place any communications on the facade of the building.
  3. With help union nuts Screw the tubes first to the fittings of the external module, then to the fittings of the internal one.
  4. Secure the drain tube using plastic clamps.

Below is a diagram of the connection of split system modules.

Vacuuming

Without evacuating the line, refrigerant cannot be introduced into the system. This procedure will require a vacuum pump and a gauge manifold. The pump is connected to the filling fitting through the manifold, as shown in the figure below (the valves on the manifold should be in the “closed” position), after which it is turned on for 20-30 minutes. to remove residual air from the system.

After turning on the vacuum pump, you need to open the handle located under the pressure gauge low pressure. After a short period of time, the needle on the pressure gauge will begin to fall and reach zero, within 30 seconds or more. The pumping time depends on the length of the line and the diameter of the tubes. The position of the arrow at zero means that in the highway a vacuum has formed.

Do not turn off the pump at this stage. Continue vacuuming for about 30 minutes. After the specified time has passed, you should first turn off the tap on the manifold, and only then turn off the pump. If the tap is not closed, air will leak into the system.

Freon filling

Freon is launched into the system without disconnecting the hose connected to the service port valve. If this is done before the refrigerant starts, air will enter the line.

In order to independently introduce refrigerant into the system, you need to slowly open the valve located on the liquid valve using a hex wrench. After filling the line with refrigerant, you can unscrew the hose connected to the service port located on the gas valve.

Attention! When the hose is disconnected, freon may be released, which can freeze your hands and damage your eyes. It is recommended to wear safety glasses and gloves on your hands. The face must be kept away from the fitting.

It is necessary to unscrew the fitting from the valve as quickly as possible to reduce the loss of freon. Don't be alarmed by loud hissing. The nut may become covered with frost when the refrigerant escapes. Do not touch it without gloves to avoid getting burned.

All connections can be washed to check for leaks. After checking, screw all the plugs onto the valve valves, not applying much force, but well enough. If you tighten them loosely, it is possible that winter period will happen freon leak.

After you have verified that the line is tight, turn on the split system for a while, then check all connections again. At this stage the installation wall air conditioner is considered completed.

Do I need permission?

People often ask whether permission is needed to install a split system, and is it possible to install it without approval from the authorities? Based on practice, permission to install an air conditioner is not required. An exception may be cases when it is necessary to coordinate the installation of climate control equipment with the authorities in buildings that are architectural monuments or having historical, aesthetic value. In other cases, approval is not required for the installation of climate control equipment.

In order for air conditioners to fully justify the hopes placed on them, three main points should be observed:

— choose a model whose power corresponds to the characteristics of the room (volume, number of equipment and people);

— install air conditioners correctly (installation location);

- operate them in full accordance with existing rules, timely performing the entire range of preventive measures.

Let us dwell in more detail on the rules for installing air conditioners, touching in more detail on split systems. As a rule, the main reason for poor performance of air conditioning systems or their premature wear is improper installation. This fact can reduce to a minimum the resource of any, even very expensive and high-quality unit.

Basic requirements and rules for installing air conditioners

Split-system household air conditioning systems include two units: indoor and outdoor. It happens that there are more internal blocks: three or even four. This combination is usually called a multi-split system.

The external unit functions as a condenser, and the internal unit plays the role of an evaporator. The connection between the outdoor and indoor units is ensured using a line that includes control wires and tubes where the refrigerant, which is usually freon, circulates.

One more important detail represents drainage tube, connected to the external unit and providing evacuation of condensed moisture. In accordance with existing regulations, the drainage pipe must be connected to the sewerage system.

The design of split systems can be different (we are talking about color scheme and the shape of the controls), but in terms of layout they are all completely identical. The principles of installation of the unit in no way depend on its design. Therefore, when choosing a place to install any air conditioner units in mandatory should be considered:

- the side of the horizon where you intend to install the capacitor unit;

— the design and material of the walls on which it will be installed;

— own weight of the block;

— its availability for preventive maintenance;

— the ability to protect the condenser from ice and precipitation.

When choosing the power of a split system when purchasing, you should take into account the total heat release in the living room. It depends on the:

— the position of housing relative to the sides of the horizon;

— number of residents;

— power and number of electrical appliances;

- quantities heating batteries;

— availability of other ventilation systems.

Installation procedure for the outdoor unit

Before you start installing the outdoor unit, you should make sure that the balcony fence or wall has the necessary strength margin for the weight of a particular equipment option, the weight of which can even reach 60 kg if powerful models are used. The safety margin of walls and fastening elements, brackets, screws and dowels must be at least double. The outer wall of modern multi-storey buildings may be insulated with a layer of foam plastic, or the façade of the house may be ventilated. In this case, the brackets must be attached not to the insulation, but to the wall itself.

Often in current houses The external walls enclosing the balcony are made of aerated concrete. This material has good thermal insulation properties, but it is fragile and lacks strength. If the external walls of your house are made of such material, it is not recommended to install a split system on them.

When the outdoor unit comes into contact with the facing part such as a ventilated facade, vibration may occur, which causes additional noise. Therefore, during installation it is recommended to use special damping type seals. Typically, the noise level of a working unit does not exceed 26-28 dB.

The condenser unit must be installed strictly horizontally and without distortions. The position of the unit affects the refrigerant circulation conditions. It is advisable to have good wind flow. An ideal place for the outdoor unit of the system is the wall of a balcony enclosure or placing it under a canopy. If your apartment is located on one of the upper floors, the condenser unit that is part of the split system can be placed on the roof, but the length of the line should in no case exceed 15 m, as this can cause significant losses of cold in the system. systems.

The drain must be arranged in such a way that drops of condensate do not fall on passing people. Although it is necessary to repeat here. In accordance with the rules for installing air conditioners, the drainage system must be connected to the sewerage system.

It is important to ensure that the external unit of the system is at least 10 cm away from the wall, otherwise in hot weather the airflow of the compressor will be poor, as a result of which it may fail.

Outdoor units are usually installed industrial climbers due to the dangers inherent in working at height.

Rules and requirements for installing the indoor unit

Installation work carried out indoors includes suspension of the internal unit of the system, as well as wiring main tracks. A separate issue is also the installation of power supply wiring.

A residential air conditioner consumes up to 2 kW, and sometimes more. In this regard, you should make sure that the electrical wiring of your apartment or house is designed for such a load. If this requirement is not met, then a special line with all the necessary fuses must be laid from the shield. This will protect your home from overheating of the electrical wiring and its ignition.

An important stage of the work is the installation of main pipelines from the outdoor unit of the system to the place where the indoor unit will be installed. In this case, the laying of the main line can be either internal with its embedding in the wall, or external. In the latter case, the highway is laid in a box.

When selecting a place for hanging the indoor unit of the system, the following should be taken into account: important points:

— the smaller the distance separating the internal unit from the external one, the more efficient the operation of the entire system as a whole and the lower the level of losses;

— the evaporator should not be obscured by objects that interfere with air movement: curtains, furniture, etc.;

Minimum distance there should be 3 m or more between the furniture and the block;

— equipment cannot be installed above heating radiators;

It is necessary to think about the accessibility of the unit for service providers;

You cannot hang the block directly above pieces of furniture or close to the ceiling plane;

— the unit cannot be installed so that the air flow is directed towards a working or sleeping place, otherwise this may lead to frequent colds for people in the room:

— it is necessary to take into account the aesthetics of the suspension and fastening elements, the compatibility of the design of the unit with the interior.

Indoor units can be wall-mounted - and their share is about 90% - or ceiling-mounted, but in any case it is necessary to ensure geometric correctness and reliability of its fastening. Depending on the modification of the air conditioner, the unit is attached with screws and brackets to the ceiling or wall. Brackets must be checked for strength.

In the case when a line is used to connect the indoor and outdoor units, it is necessary to vacuum the connections. At the same time, moisture and air should be removed from them. These operations must be carried out using equipment specially designed for this purpose.

Procedure for installing an air conditioner

The main stages of installing any air conditioner are:

1. Laying electrical wiring to power the air conditioner.

2. Installation of the external unit:

- selection of the most suitable place located at a height of at least 2 m above ground level;

- fastening brackets using anchor bolts;

— suspension of the external unit on pre-strengthened brackets;

— drilling holes with a diameter of 50-60 mm in external wall for laying communications;

— laying a waterproofing cylinder and connecting lines in the holes.

3. Indoor unit suspension:

— selection of the most suitable location (the distance between the units located outside and inside the room can be from 7 to 20 m, which is determined by the modification of a particular air conditioner);

— fastening of brackets;

— installation of the indoor unit.

4. Connecting the air conditioning installation wiring:

— installation of the box (internal or external);

— joining copper tubes for refrigerant circulation and connecting electrical wiring;

- removal of moisture and air from the system - vacuumization (the operation lasts at least 45 minutes, during which it is used special equipment).

5. Test run of the split system. Typically, special hardware and software equipment is used for this purpose.

Typical mistakes when installing air conditioners

Cases of improper installation of air conditioners are quite common. The reason is quite clear - the significant cost of services provided by companies specializing in the installation of split systems, and the presence of non-professionals in this market. Often the cost installation work, usually performed within 2-3 hours, is equal to half the cost of a middle-class split system, as a result of which air conditioner owners often prefer to turn to the services of uncertified specialists or even obvious self-taught ones.

To the most typical mistakes during installation of a split system include:

— excessive bends of freon tubes or repeated bending of these tubes, which entails an increase in the load on the compressor;

— installation of a condenser unit on a glazed loggia, which negatively affects air circulation;

— installation of air conditioners in rooms where there are devices emitting high-frequency electromagnetic waves: turning or drilling machines, welding equipment;

— installation of the evaporation unit with some distortion, which leads to condensation leaking onto the floor covering;

—installation of the evaporation unit above batteries or other heat sources.

If mistakes have already been made, then it is necessary to understand their meaning and cause, and then take measures to correct them:

— if the air conditioner creates a draft, change direction air flow by changing the position of the dampers;

- when the air conditioner provides heating, on external unit an ice coating forms. Most likely, the device does not have a system that provides automatic defrosting. Give your air conditioner a chance to run in cooling mode and the deposits will gradually melt away;

— in hot weather, the air conditioner does not give the required effect - check and, if necessary, clean the filters, close the windows in the room, turn off the heating devices, replace the modification with a more powerful one;

— weak air flow - clean the unit filters;

- water is oozing from the evaporator - most likely the drainage channel is clogged, there may be an ice plug. You should call a technician to warm up the unit;

— When the air conditioner is operating, you hear extraneous noise. This may indicate wear of the bearings or existing fan imbalance. You should invite a specialist to carry out diagnostics and repairs;

- the compressor gets very hot. This indicates a decrease in freon pressure. In this case, it is necessary to refuel the air conditioner and check the system for leaks (the work is carried out by a specialist).

Thus, correct installation Split systems guarantee that the air conditioner will fully cope with the tasks assigned to it. Required quality installation of equipment and the efficiency of its operation can only be ensured by true professionals working in this field.

When choosing a place to install an air conditioner, the first thing you need to consider is that the coolest air will be at a distance of 2-3 meters from the device. Place it in such a way that there is no bed, sofa or other place for sleeping or prolonged rest in this area. In addition, when choosing where to install the air conditioner, it is worth choosing a place that is remote from all heating devices. Anything that emits heat or steam is a bad neighbor for an air conditioner, unless of course you want to create indoor tornadoes :) It is also undesirable for pieces of furniture to stand in the path of the air flow, otherwise the operation of the device will not be efficient enough.

When choosing how to properly install an air conditioner in a room, the location of the windows is also taken into account. If you have sunny side, then the flow of cooled air should go perpendicular to the heat flow from the windows, in which case the temperature will be distributed most evenly. It is also not recommended to place the split system opposite the door to the room so that the cooled air does not escape into other rooms.

When installing an air conditioner under the ceiling, you must also take into account the necessary indentation - at least 15 cm from the ceiling to provide space for air movement. Since most split systems do not provide air flow from the street, but only cool existing air, for a healthy microclimate it is better to place the air conditioner in the same room with - it will supply Fresh air, and the air conditioner cools it to the desired temperature.

If you are deciding how to properly install an air conditioner in the bedroom, then the best solution will place it above the bed - in this case, the zone of greatest cold will be abroad sleeping place, and the air will be at a pleasant temperature during sleep.

If we talk about how to properly install an air conditioner in the kitchen, then, in addition to moving away from heat sources, which include kitchen stove, you also need to take into account the fact that if the air flow gets into other rooms, then the smells from the kitchen will spread throughout the apartment. If you have gas stove, then it is also not worth placing the air conditioner opposite it, since the air from it will blow out the flame. There is often not enough space in the kitchen to install a split system according to all the rules; in this case, you can choose a corner or compact installation, such options are now available on the market.

Installing an air conditioner is a rather complex undertaking that requires, if not experience in carrying out such work, then at least thorough theoretical training. In more than half of the cases, problems with air conditioning appear due to incorrect installation and errors during the system connection process. Even the most expensive and modern device will not be able to fully realize its potential if its installation is carried out in violation of technology.

A traditional split system includes an external unit, which is placed outside the window, and an internal unit. In some cases, more than 1 block is installed. Such combinations are known as multi-split systems.

Each element of the system performs its own functions. So, the outdoor unit is responsible for condensation, while the indoor unit performs the functions of an evaporator. The blocks are connected using a backbone of tubes and wires. Freon circulates through the tubes. The system also includes a drainage tube. It is connected to the outdoor unit. It is responsible for removing moisture that condenses during operation of the installation. According to the rules, this tube must be connected to the sewer system.

Air conditioning systems are available for sale to suit every taste and requirement. However, in terms of their composition and connection technology, they are practically no different from each other.

Before you begin installing the blocks, you need to decide on a number of important points.

  1. First, decide on the side of the world that the capacitor unit will face.
  2. Secondly, you need to establish the material from which the walls of the house are made. In accordance with this point, suitable fasteners will be selected. Additionally, certain changes in the system installation process are made by the weight of the blocks.

It is important to ensure normal access to the units to carry out preventive maintenance and repair activities. The outdoor unit must be protected from precipitation, icing and other adverse influences.

When choosing the power of a future split system, take into account operational and other important characteristics housing. First of all, take into account the orientation of the apartment or house to the cardinal points. Also important is the number of people inhabiting the home, the total power of electrical appliances, the number of heating radiators, and the presence of other ventilation systems and devices.

Before proceeding with the installation of the outdoor unit, you need to make sure that the strength of the balcony railing or wall is sufficient to support the weight of the product. The most powerful models weigh up to 60 kg or even more. On average, household outdoor units weigh 10-15 kg and usually no problems arise with their placement. The wall and all fasteners used must have a minimum of two times the strength factor.

If there is external insulation, be sure to ensure that the brackets are not attached to the thermal insulation, but directly to the wall material.

Quite often, aerated concrete is used in modern housing construction. This is an excellent material with high thermal insulation properties, however, unfortunately, it cannot boast of great strength. If external walls Since your home is built specifically from aerated concrete, you should refrain from installing the air conditioner directly on the wall.

It is not recommended to hang the block on a ventilated facade, because During its operation, quite strong vibration and noise can be created. In the situations described, the unit should be installed using a special damping seal, which is pre-fixed to the wall. The air conditioner itself rarely produces noise more than 25-30 dB, so in houses with walls made of a material denser than aerated concrete, no inconvenience usually occurs.

Any distortions when installing the external unit are unacceptable. At each stage of installation, you need to check the horizontal installation of the product using building level. Deviations from the horizontal will lead to disruption of the circulation of freon or other refrigerant used.

If possible, the air conditioner should be installed in a place where the wind blows from all sides, but at the same time it is protected from precipitation and other negative influences. The best option is to place the unit under a pre-installed canopy or at least on the balcony. Residents of the upper floors apartment buildings can install an outdoor air conditioner unit on the roof. It is only important to ensure that the main length does not exceed 15-20 m in total. Otherwise, there will be significant losses of cold in the system, and the air conditioner will consume electricity in vain.

Take care of proper arrangement drainage of condensed moisture. Regulations require that this pipe be connected to a sewer. However, this requirement is almost never met, and the moisture simply drips onto the ground under the window. In such a situation, you need to at least make sure that water does not drip on passers-by.

The rules require that the distance between the outdoor unit and the wall surface be at least 10 cm. The problem is that the compressor must have sufficient airflow from all sides. If you install it closer than 10 cm to the wall, in summer the airflow will be insufficient, which will lead to damage to the unit.

Installing an outdoor unit is associated with a certain danger, because... This is still high-altitude work. Therefore, installation can only be carried out if you have the necessary insurance, or it is better to completely entrust it to professional installers.

Installation procedure for the indoor unit

Inside the premises, the corresponding unit is installed and the pipeline is laid. Special attention should be paid to the process of arranging electrical wiring. Household air conditioners consume about 2 kW of electricity or more. First make sure that the wiring in your apartment or house can withstand such a load. If she is not capable of this, lay an individual line from the shield with a separate fuse. This will protect the wiring from overheating and your property from fire.

Lay the line from the external unit of the air conditioning system to the location of the indoor unit. The line can be laid outside or inside. When installed externally, it is hidden in plastic box, in accordance with internal installation the line needs to be buried in the wall.

Be careful when choosing a place to place the indoor unit. The further the blocks are removed from each other, the less efficient the system will be and the higher the energy losses will be.

The indoor unit must be placed so that there are no objects near it that could interfere with the normal flow of cooled air. Appliances, curtains and other objects that are at the same height as the unit must be at least 3 m away from it.

The unit must not be placed directly above a heating radiator. The installation location must be such that the installation can be easily accessed for repair and maintenance work. The distance between the unit and the ceiling should be at least 20-25 cm. It is not recommended to install the air conditioner above appliances and furniture.

The air conditioner must be installed so that the output during operation cold air did not blow directly on the person. Otherwise, bronchitis and sore throats will not take long to appear.

The indoor unit may have a wall or ceiling structure. The latter are extremely rare. However, regardless of the type of system, it is necessary to ensure the most correct and reliable fastening. Installation is carried out using brackets and screws. Brackets must be checked for strength.

After connecting the outdoor and indoor units, it is necessary to remove moisture and air from the line. This process is known as vacuumization. Special equipment is used to pump out air and water.

Do-it-yourself air conditioner connection sequence

Air conditioner installation is carried out in several stages. First, the electrical wiring is laid. Further The external unit of the system is installed. The technology requires that it be placed at a height of at least 180-200 cm from ground level. This requirement relevant for owners of private houses and residents of apartments located on the ground floor.

In the outer wall holes are drilled for laying communications. The diameter of these holes should be 500-600 mm. Brackets are installed to ensure the block is secured. A special waterproofing cup is inserted into the prepared hole and the connecting lines are laid directly.

Next you need install the indoor unit. The maximum permissible distance between these two elements is 20 m. A distance of 7-12 m is considered optimal. Specific recommendations are given in the instructions for the equipment; be sure to study it before installation. Install the brackets and secure the indoor unit of the air conditioning system.

At the end, all that remains is to lay the wires that will ensure the functioning of the system. Mount the box. It, as already noted, can be internal or external. Connect the electrical wires and freon tubes. Evacuate the system. Special equipment is used for this. The procedure itself lasts on average 45-60 minutes.

After the vacuum is completed, perform a test run of the air conditioner. Professionals at this stage use special software and hardware equipment. If it is absent, at least observe the operation of the system and the state of the electrical network for some time.

Basic connection errors and their elimination

Mistakes made during the installation of an air conditioner lead to many different troubles. However, the services of professional installers are becoming more expensive every year and an increasing number of people, in an attempt to save money, are trying to install the air conditioner themselves. This, as already noted, is a rather complex and very responsible job, which has many features and requires taking into account a wide variety of nuances.

  1. One of the most common mistakes is laying pipes with unacceptable and/or repeated kinks. Because of this, the load on the compressor will increase, which will not have the most favorable effect on the operation of the system.
  2. The external unit cannot be installed on a glazed balcony. Previously, recommendations were given for its installation in this room, but they are relevant only for non- glazed balconies. It is important that normal air circulation is maintained and the unit is blown from all sides.
  3. The air conditioner should not be installed where any kind of installation that generates high-frequency electromagnetic waves is operating. Such equipment includes various welders, machines, etc.
  4. It is important to maintain maximum evenness of the installation of the blocks. If this rule is violated, the resulting condensation will simply drain onto the floor, which will cause a lot of inconvenience. As already noted, the air conditioner cannot be installed directly above the radiators.

If these and any other errors were made and led to undesirable consequences, appropriate measures must be taken to correct the violations. If there is a draft from the air conditioner, it is usually enough to change the direction of air flow by adjusting the dampers.

When the system is turned on in heating mode, ice is often detected on the external unit. The reason for this phenomenon is usually that the system does not have an automatic defrost function. To remove ice, it is enough to turn on the equipment for a while to cool. The air conditioner will heat up and the ice will disappear.

If your air conditioner stops cooling properly, you need to check the filters. They require regular cleaning. Detailed recommendations on this matter are usually given in the instructions.

If water begins to drip from the indoor unit, the cause of this problem in most cases is a severely clogged drainage channel. Ice plugs that form also lead to this. It is impossible to eliminate this kind of blockage on your own without the necessary skills. It is recommended to urgently call a technician who can properly warm up the system and correct the situation.

Uncharacteristic noises during system operation usually indicate an imbalance of the fan or severe wear of the bearings. This problem can also be dealt with only by a qualified technician.

If you find that the air conditioner has begun to overheat, you should call a technician to check the freon level and the tightness of the system.

Thus, installing and connecting an air conditioner yourself is a completely feasible job. But you need to be prepared in advance for the fact that this event is not easy. Follow the instructions in everything and promptly eliminate any problems that arise. Then the air conditioner will serve as long as possible, fully performing all the tasks assigned to it.

Happy work!

Video - How to install an air conditioner yourself

Installing an air conditioner is not an easy task, but it can be done! At each stage many questions arise. This is complicated by the fact that it is impossible to give one standard scheme - each case is individual. If you don’t know where to start installation, in what sequence to perform operations, then this article is for you!

There are many recommendations and guides on the Internet, but they are not very specific. In this post I will highlight the nuances that arise at each installation step - I will try to make clear instructions. So that with the help of it everyone can perform a simple installation of a household split system. But before starting work, read the entire article.

  • if the “route” of the air conditioner is very long and has complex bends;
  • if the highway will pass through several walls;
  • if the external unit is installed at a high altitude (above the second floor);
  • if the diameter of at least one of the pipes is greater than 3/8 inch.

Air conditioner installation

  1. The first stage is the most difficult. It is necessary to imagine how the “route” between them will be laid. Each factor should be taken into account:


On mounting plate mark the center of the block. Then we mark the center on the wall. Don't forget about the distance to the ceiling. Using a level, level the plate and secure it.

After this, you can fit the indoor unit to the fixed plate (but do not snap the lower clips to the plate!). Use a pencil to mark the lower corners of the body. Then remove the block from the plate.

  1. Mark where the hole will be in the outer wall.

Carefully cut through the wallpaper and knock off the plaster at the drilling point. If the installation is direct or as in the photo above, then you need to make a so-called “approach” to the hole (where the tubes will enter the wall). So that in this place the bend of the “route” is smooth.


  • for brick or concrete walls you will need a large hammer drill and a drill with a pobedite tip. Drill the first 2-3 cm of the wall without tilting (in a straight line) so that the drill barely enters the wall. Then be sure to bend down. During this operation it is better to use an industrial vacuum cleaner.
  • It is better to drill a wooden wall with a drill with a feather drill with a diameter of 45 mm. The process will go slowly but surely. Don't forget to tilt the hole down.
  • It is better to drill a metal profile or “sandwich” with a 45mm bimetallic crown. Also, do not forget about the downward slope of the hole.


  1. If the air conditioner “route” needs to be pulled through just one hole in the wall, then you can proceed as follows:

We conveniently position the indoor unit and connect the materials to it:



We form the following materials into one compact bundle:


  1. With the help of a partner, we drag the indoor block with the “route” through the hole in the wall. We hang it on the plate, but do not snap the lower clips!
  2. We connect the power cable to the right place inside the room (but we don’t connect it!). If required, close the “track” inside the room cable channel. Snap the lower clips of the block.
  3. We throw the external unit onto the brackets and screw it securely. We carefully bring the “route” from the outside to the taps of the external unit.
  4. We unscrew the nuts of the taps of the external unit (make sure that nothing gets into the open fittings). We put the nuts on the tubes, after which we roll them. Screw it on copper tubes to the fittings.
  5. Connecting interconnect cable just like to indoor unit. If the air conditioner comes with an additional wire, then connect it to the appropriate block. We connect the “power” cable if, according to the diagram, it goes to the external unit.
  6. Further you will need pressure gauges and a vacuum pump(pressure gauges must match the type of freon). Be careful here:
  • connect the LEFT hose of the pressure gauge to the fitting of the external unit (to which a large diameter tube fits). Connect the MIDDLE pressure gauge hose to the vacuum pump;
  • start the pump and open the LEFT tap on the pressure gauge (counterclockwise);
  • We wait a few minutes until the air is pumped out. For small air conditioners (up to 2.7 kW of power) and a short “path” (up to 5 meters), wait 8 to 10 minutes;
  • at the end of the “pumping out”, close the LEFT valve of the pressure gauge, and immediately after that turn off the pump. We look at the pressure gauge readings (the arrow should be at “-1”). If in your case refueling with freon is required, then read the relevant articles ();
  • open the tap of the thin tube on the external block with a hexagon. At the same time, we look at the readings of the pressure gauges - “catch” the arrow at about 3 bar. We watch the arrow for 5 minutes - it should not move to 0 bar (which will indicate the tightness of the tube connections);
  • Next, unscrew the LEFT pressure gauge hose from the air conditioner. Here you need to be VERY careful and QUICKLY unscrew the hose so as not to get burned by the freon (be sure to wear gloves). Even experienced specialists can suffer during this operation;
  • open both taps on the external block with a hexagon (counterclockwise). After this we can close all the plugs.

Approximately the same instructions are in a separate article.


Thus, the installation of the air conditioner is complete! This article is not universal instructions for all household air conditioners. But in most cases it will be relevant, and I hope it will help you install an air conditioner. Look detailed video for installation of a split system.

If you have anything to add, leave a comment!