air conditioner is not colding

Installation of air conditioners on the example of a split system. In detail

Maintenance and installation of air conditioners is an extensive complex topic, to which we have devoted many articles. But we haven’t raised the topic of interaction with the masters yet.

Masters who provide services for the installation of a split system often offer customers the so-called standard installation. But not every site describes in detail what works are included in this service. How not to overpay for the imposed work?

In this article, we will tell you in detail what a standard installation of a wall-mounted air conditioner is. You will find out what steps are included in the service for the standard installation of air conditioners and the next time you call the master, you will not be lost in guesses.

General information

How to move the air conditioner to another place?

Most companies that provide services for the installation and maintenance of air conditioners offer the so-called standard installation of a split system. This service is suitable for most customers, since it consists of all the basic steps for installing and testing both indoor and outdoor air conditioning units.

Let’s take a closer look at each of the stages so that you can better understand what is included in the standard installation.

What is included in the standard installation

Installation of wall-mounted air conditioners (the so-called split system) is installed within 2-3 hours. At the same time, 2-3 installers are involved in the work. One, as a rule, does the main work, and the second helps. Let’s take a closer look at each stage of installation.

Marking for the indoor unit

marking for air conditioning

The first thing that professionals start working with is markup. The masters determine where the indoor unit will hang and where it is necessary to make a wall shtroblenie for laying communications. At this stage, the customer is interviewed: is it planned to install a stretch ceiling, what are the dimensions of future ceiling cornices, are curtains planned, etc.

The markup can be done using a permanent marker. It is poorly washed off, so it remains visible even under a layer of construction dust. Beginners usually use masking tape, they measure everything accurately and only then make a marking with a marker.

As for the room, theoretically, the device can be hung in any room. But most often customers choose a living room or an entrance hall if the apartment is small (up to 50 sq. m.). Installation in the kitchen or in the bedroom is advisable only if the apartment is large, and there are air conditioners in other rooms too.

Power supply

Without electrics and wires, the air conditioner will not be able to work, this is obvious. In most cases, a separate wire is laid and an automatic machine is installed so that the device itself can turn off in case of any problems.

Installation of the outdoor unit

external unit hums

Installation of an outdoor unit is one of the most responsible and dangerous stages. Often, industrial climbers are involved to perform the work. A stepladder will help only if the air conditioner is installed no higher than the first floor. In all other cases, you will have to resort to the help of professionals.

First, a bracket is mounted on the facade of the house. Then an outdoor unit is placed on it. Between the bracket and the unit, you need to put vibration dampers to extend the service life of the air conditioner and save the customer from extraneous noise. If desired, a protective visor is installed.

Installation of a split system is fraught with danger and health risks not only at the installation stage, but also during operation. If you use a poor-quality bracket or ignore the basic rules of fastening, the block can break off from the facade and cause an accident. It is for this reason that it is so important to pay attention to the issue of installing outdoor units.

Wall chasing

what is a stroba

In fairness, wall chasing is not always necessary. If you do not want to spoil the existing repair, you can lay communications directly on the wall, closing them later with a plastic box. This is not the most aesthetic option, but it saves time, money and effort.

Let’s go back to wall chasing. With the help of a puncher, the master makes a so-called wall chase in the wall, focusing on the markings. The depth and width of the wall chase rarely exceeds 10 cm. Usually the depth is limited by the thickness of the wall. It is extremely important not to get into the rebar when performing crushing, as this can damage the structure of the house.

And a hole is being drilled under the window for the output of communications. During the work, it is important to observe safety precautions so that the parts of the wall falling out of the hole during drilling do not damage people passing by on the street.

Laying of communications

air conditioner route

First, the master measures the required length of the copper tubes. There should be a fairly large margin, 60-80 centimeters. Just in case. When cutting pipes, it is necessary to use a special tool-a pipe cutter. With the help of a pipe bend, the main line is carefully bent in the necessary places, in no case manually.

If ordinary, not heat-insulated, tubes are used, the master additionally puts a heater on them. It is important that the pipes are insulated with the material intended for this, and not with homemade inventions like foam rubber or fabric. Pipes are also rolled out.

Next, the pipes are laid in a strobe or attached to the wall, if the strobing was not performed. Some ends of the pipes are taken out to the street and connected to the outdoor unit.

Also, a drainage pipe is output to the street, which is subsequently connected to the indoor unit. For a tight connection, you can use a shrinkable material and a heat source.

Air conditioner drainage

The fittings with which the pipes are connected to the blocks must be properly tightened, but increase the force gradually so as not to break the thread and not provoke a depressurization of the system.

The installation of the wall-mounted air conditioner is almost finished! It remains to connect the blocks with each other using wires.

Leakproofness check

The installation of the split is finished, but before switching on, it is necessary to carry out a number of preparatory works. First of all, it is important to check the air conditioning system for possible leaks.

Most masters use the old grandfather’s method, which works flawlessly: a soap solution. It is cheap to prepare and copes with its task perfectly. The solution is applied to all connections, then a pump is connected to the system and air pumping begins. At the same time, you can even use an ordinary bicycle pump.

One master begins to pump up the air, and the second twists the connections, in place of which soap bubbles appear. Over time, the system becomes sufficiently sealed, and bubbles no longer form. It remains only to remove the soap traces with a damp cloth.

Pumping out air

Vacuuming is a mandatory stage. Before refueling the system with freon, it is necessary to remove all excess air from it. The whole process takes no more than 20 minutes, but novice masters can wait 30. There’s nothing wrong with that. During the pumping of air, the master uses a pressure gauge and monitors the pressure indicators.

Installation of the indoor unit, refueling and testing

So, the system is sealed and sealed. Now you need to hang the indoor unit and fill it with a refrigerating agent (freon). This stage requires skill and specific knowledge from the master. In some cases, it is necessary to use an adapter, and the selection of the required amount of freon is not always clear even for an experienced installer.

Nevertheless, a professional will be able to fill the device correctly, using all his knowledge and using elementary formulas for calculation.


After refueling, the air conditioning system is tested. Without testing, the air conditioner can not be handed over to the customer. The check usually takes about an hour. During this time, the wizard checks all the main operating modes. To completely change the mode, you need to wait 10-15 minutes, which is why the process takes so much time.

If the device works stably and does not emit extraneous noise, we can assume that the installation of the wall-type air conditioner has been completed successfully. By the way, after testing, the indoor unit is removed to make a finishing finish. And only after the complete completion of the repair, the air conditioner is returned to its place.


Thanks to technological progress, budget models of devices that can be purchased by almost any family have appeared on the market. The widespread use of split system air conditioners has led to the emergence of a huge number of craftsmen and companies that offer their services for the installation and maintenance of air conditioners.

At the same time, many of them talk about the standard installation of an air conditioner, not always going into details about what this means. In fact, the standard installation of wall-type split systems includes a set of basic works, such as marking, splitting, installing blocks, etc.

However, before paying, it is important to check with the air conditioner installer what kind of work will be done. So that then not to sort things out in raised tones. After all, the concept of «standard installation» may differ from master to master.

Any other questions? Ask them in the comments below. There you can also share your experience of installing a split system. We wish you good luck!

Добавить комментарий

Ваш адрес email не будет опубликован. Обязательные поля помечены *