Standard sizes of air conditioners: typical sizes of outdoor and indoor units

Alexey Dedyulin
Checked by a specialist: Alexey Dedyulin
Author: Alllina
Last update: February 2020

The acquisition and installation of a merged system today is not a luxury, but a necessity. Such a device helps out in too hot or cold weather. Air conditioning allows you to maintain the microclimate in the room at the optimum level. But the choice of merged systems today is very large.

Agree, it’s hard to stop on a particular model among all those presented in the store? Few buyers consider the standard sizes for air conditioning, pays attention to the dimensions of the device. The main purchase criteria are usually the appearance, brand, price.

But the size of the air conditioner is important to consider when choosing. It depends on them whether it will be possible to position the device in the planned location of the room, as well as the installation features. Correctly selected and installed model will work as efficiently as possible. Therefore, it is important to understand what size an air conditioner should be.

We will tell you how the size of the internal and external blocks of the split system affects the operation of the equipment, for which rooms, which dimensions are best suited, and how and where it is better to position the device. This will help you choose the best option and not be disappointed in the purchase.

Why you need to know the size of the air conditioner

For those people who care about their health and well-being, it does not matter how much air conditioning will consume electricity.

In order for the system to work effectively and maintain the temperature at the desired level, it is necessary to select the climate system taking into account its dimensions and power.

Air conditioning on the wall in the office
It is recommended to install split systems in bedrooms and workrooms. It is proved that at temperatures above +26 and below +22 degrees, labor productivity decreases. This negatively affects the working rhythm, the psyche. Properly sized air conditioner will ensure the maintenance of an optimal microclimate in the room

The size of the air conditioner is especially important for small rooms.Large systems in small rooms will look bulky and spoil the look. In addition, serious difficulties may arise during their installation: the purchased device may not fit in the space provided for it.

It is important to position the air conditioner correctly. Keep off the ceiling manufacturer recommended distance. As a rule, it is in the range of 60-150 mm. The optimum distance from the perpendicular wall to the system is 400 mm.

If you ignore these requirements, the efficiency of the equipment will be low.

Recently, new approaches to the placement of air conditioners. There are now on sale vertical indoor units of split systems. Such devices are equipped with a side outlet for cooled air.

Corner ceiling air conditioning
Corner air conditioners do not look as bulky as rectangular ones, take up less space. Such models are the best option for small rooms.

It is important to choose an air conditioner of such shape and size that it fits perfectly into the place intended for it and looks organically in the interior of the room. Also, the unit should not be too noisy.

The influence of the size of the air conditioner on the work

Each air conditioner model has its own technical and operational characteristics. When choosing a device, it is important to pay attention to the dimensions of the indoor and outdoor units of the system. The performance of the equipment depends on this parameter. The larger the air conditioner, the higher these technical parameters will be, and vice versa.

The dimensions of the split system are determined by the dimensions of the parts installed in it. The larger the evaporator, the condenser, compressor and other constituent elements, the greater the amount of air mass the device can process and give out in a minute of time.

The productivity and power of the equipment determines how much space it can cool in normal operation.

Rectangular air conditioners of different sizes
After choosing several models of air conditioners in the store, you need to familiarize yourself with their power consumption and performance. Similar characteristics can be found in the passport to the device. This will help determine the best option for a split system.

Air conditioners that are not compact in size are low-power. For example, some companies increase instrument performance by installing more powerful fan. At the same time, the air conditioner becomes more noisy in operation.

Such equipment is not recommended for installation in a bedroom. Its constant noise will interfere with relaxation and good rest.

Standard sizes of air conditioner

Split systems come in different types: domestic, semi-industrial and industrial. A wide range of this equipment makes it possible to choose the optimal model in terms of size and design for any room.

In one series of a certain manufacturer, air conditioners of small, medium and high power can be represented. Accordingly, their sizes will vary.

The standard indoor and outdoor units are rectangular. The size of these units is characterized by three values: width, height and depth. Home split systems have small dimensions. Industrial devices are more powerful, so their value is greater.

Indoor Unit Dimensions

Today, manufacturers produce air conditioners in various variations of the indoor unit. This affects the ratio of the length, width and height of the device.

More often in apartments install split systems with a rectangular indoor unit.

Rectangular air conditioner above the doorway
Rectangular air conditioners are very popular. Due to the fact that their shape is elongated, they do not look as bulky as square split systems. In addition, they can be placed above a window or doorway.

The minimum dimensions of the indoor unit of the split system are represented by the following values: height 24-25 cm, depth 18-19 cm, width 70-74 cm.Some companies produce wall-mounted air conditioners with an internal module depth of 18 cm. This significantly expands the possibility of installing such equipment in various areas of a small room.

The width of the indoor unit of a medium-power domestic air conditioner varies from 70 to 80 cm. Less often there are systems up to 90 cm. The height is usually 25-29 cm. The average value is 27 cm, while the depth reaches 24 cm.

The maximum height of the wall-mounted indoor module is 30-32 cm, the depth is 30 cm, and the width is 110-120 cm.

If the indoor unit has a non-standard shape, for example, is designed for vertical arrangement, then its dimensions will be different. A compact ceiling module is often made square. Its length and width are 50-100 cm.

Square ceiling air conditioner
Ceiling air conditioners evenly distribute air masses around the entire perimeter of the room. At the same time, direct air exposure to a person is excluded. This reduces the risk of catching a cold. Also, ceiling air conditioners are quiet. Therefore, it is recommended to install such split systems in bedrooms

In columned units of split systems that are mounted on the floor, the height reaches 100-150 cm. The width and depth are 70 and 80 cm, respectively. Due to such dimensions, column modules are not located in small rooms.

If you need a device other than the standard size, then most likely it will have to be made to order.

Dimensions of the outdoor unit

The dimensions of the external units of air conditioners are affected by their form of execution. The outdoor module can be square or rectangular. The largest parts of this unit are the radiator and compressor. Therefore, the larger they are, the larger and more powerful the device will be.

Split systems with a capacity of up to 2.7 kW have an outdoor unit height of 42-60 cm. On average, this value is at the level of 50 cm. The width of a standard outdoor module varies between 66-80 cm.

Outdoor unit
An external unit is usually positioned to withstand 15 cm from the wall of the building. With this in mind, the system protrudes approximately 42 cm from the cladding of the house

In medium-power air conditioners, this parameter is 70 cm. The depth of the small outdoor units of the split systems is 23-30 cm.

Higher performance devices feature a larger external module. Its width can reach 86 cm, height - up to 65 cm, and depth - up to 32 cm.

Dimensions of mobile split systems

Are popular mobile air conditioners. Their design is similar to wall options. They also consist of indoor and outdoor units. But their device is a little different.

The compressor is located in the indoor unit. The external unit contains a fan and a condenser.

Mobile split system at the window
A mobile air conditioner is not capable of cooling a large area. It has compact dimensions and, accordingly, has a low power. Therefore, such a device is usually installed in small rooms

Both parts of the mobile split system are equipped with small wheels for easy transportation. The modules of such equipment are compact: their length is 50-70 cm.

Air conditioner size selection

To determine the size of the air conditioner, you need to think about where this device will be located. It is necessary to remember the rules of remoteness of the system from the ceiling and walls. The equipment should have such dimensions that it fits nicely in the space provided for it, does not greatly reduce the useful free area and does not impair the general appearance of the room.

Important choose air conditioningwhich will effectively cool or heat the room. If you install too weak equipment, then it will be of little use. Buying an overly powerful device will be a waste of money.

Rectangular suspended ceiling air conditioner
It is especially important to determine in advance the size of the air conditioner when carrying out repairs in the room. Today, often instead of painting and whitewashing the ceiling, installation of suspended structures is carried out.This can greatly affect the height of the room and the parameters of a suitable split system.

To find out the optimal size of the air conditioner, you need to decide on the service area. It is calculated by multiplying the length of the room by the width.

Manufacturers of split systems label their products with various letters and numbers, which mean the characteristics of the equipment. For example, marks “7”, “9”, “12”, “18”, “24”, “30” indicate the level of performance of the device. The size of the air conditioner depends on the cooling capacity of the air conditioner.

To understand what area the climatic equipment is designed for, you need to multiply the number printed on it by 3. So, if the device is planned to be installed in a room of 21-27 sq.m., then you need to give preference to "seven" or "nine".

Such a split system has dimensions of 70x50x27 cm. If the area of ​​the room is 27-36 sq.m., then you need to install an air conditioner, which is marked with the number "12". Its dimensions are 75x52x29 cm.

The room is 42-54 sq.m. you should purchase an "eighteenth" air conditioner. Its dimensions are 80x54x30 cm. For large rooms, the area of ​​which reaches 72 square meters, a device with the marking "24" is suitable. Its dimensions are as follows: 86x65x32 cm.

If a standard air conditioner is not suitable?

Storerooms, walk-in closets, rooms with a non-standard layout require an individual approach to solving the issue of air conditioning. It can be problematic to place conventional wall split systems of suitable size and power in them.

Monoblock window in a small room
Window air conditioning is small and does not reduce the area of ​​the room. It works quietly enough. Monoblock replaces the wall analogue well, but worsens the window

The way out of the situation is the acquisition and installation of non-standard climate equipment. For example, you can buy a ceiling air conditioner. Such a system is suitable even for very small rooms.

Also available window air conditioner. It is a compact candy bar. The back side of such a device extends to the outside of the window.

If you want to install climate control equipment in a large area, but do not want to spoil the appearance of the room, then you should choose a channel air conditioner. This is a hidden type system. Only lattices of this device will be visible in the room.

Conclusions and useful video on the topic

Characteristics of channel compact air conditioners:

Manufacturers offer a wide range of split systems. There are standard rectangular, angular, square and ceiling models. When choosing an air conditioner, you need to pay attention not only to its design, cost and popularity of the manufacturer, but also to size.

Today on sale are split systems of various sizes. This allows you to choose equipment for any room, without significantly reducing its space. The size of the climate technology directly affects its performance. The larger the device, the more powerful it is, the larger the area it can cool or heat.

There are questions, found bugs or you can supplement our material with interesting information on the topic of the article, please leave your comments in the block below. Your opinion is very valuable to us.

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