Carrier air conditioners at a glance

How does a Carrier air conditioner work? 

The function of an air conditioning system is based on a closed refrigerant circuit. In cooling mode, this ensures that the heat energy present in a room is absorbed and released to the outside. But how does this process work in detail? 

Refrigerant circuit explained simply

In principle, heat always moves from a high to a low temperature level. If it is warmer outside than inside the building, this is precisely what is not intended. The heat should be transported outside. This is made possible with the help of a refrigerant circuit. This forms the basis for the functioning of air conditioning systems - regardless of the design of the respective device. As the Carrier portfolio includes so-called split air conditioning systems, which consist of an outdoor and an indoor unit, the process is explained below by means of these. The steps at a glance:

Absorption of thermal energy at the indoor unit
Liquid refrigerant flows through the indoor unit of the air conditioner. The pressure is reduced with the aid of a throttle valve. As a result, the refrigerant expands and cools down until it is colder than room temperature. At the evaporator (heat exchanger), the heat from the room is transferred to the refrigerant. It heats up slowly and evaporates while the room air cools down.

Release of thermal energy at the outdoor unit
The now gaseous refrigerant flows into the outdoor unit via pipes. It is compressed at the electrically powered compressor and heated until it is warmer than the ambient temperature. At the condenser (heat exchanger), the heat is transferred to the outside air, causing the refrigerant to cool down and liquefy again. It is transported back to the indoor unit of the air conditioning system and the cycle begins again.

Info: If you heat with your Carrier air conditioner, the described process is reversed.

Refrigerant as an essential component 

As is generally the case, a refrigerant is also required for the operation of Carrier air conditioners. These are substances with special chemical characteristics. In order to be able to transfer thermal energy - as described above - from a lower to a higher temperature level, the following characteristics are important:

• low boiling temperature

• low vapor volume

• low liquefaction pressure

• chemical stability

Carrier air conditioners use the refrigerant R32. With a GWP value (Global Warming Potential) of 675, it meets the requirements of the so-called F-Gas Regulation for reducing emissions of fluorinated greenhouse gases. The value images the greenhouse gas potential of a refrigerant in comparison to carbon dioxide (CO2), which has a GWP value of 1.  The lower the value, the better.

Info: Heat pumps and air conditioners use the same principle for heating and cooling. As Carrier air conditioning units offer both functions, they are also referred to as air-to-air heat pumps.

Types of air conditioners and offer from Carrier

There are various solutions for keeping rooms at the desired temperature. Carrier specialises in split air conditioning systems for apartments and houses. But how do these differ from comparatively simple technologies? 

Advantages of a Carrier air conditioner

Living room, bedroom or children's room - single and multi-split air conditioning systems from Carrier help to create an optimum feel-good climate. State-of-the-art technology guarantees high efficiency and a wide range of functions. Different product types and performance classes allow perfect adaptation to individual circumstances and requirements. Find out below what advantages Carrier air conditioning systems offer in detail.   

Year-round feel-good climate

Carrier air conditioners can do more than just cool. All models offer both a cooling and a heating function. This means they contribute to an optimum indoor climate all year round. Particularly in the transitional period, for example, the appliances are also suitable for supporting existing heat generators or temporarily replacing them completely.  

Top air quality     

The range of functions of Carrier appliances goes beyond simply tempering the room air. For example, special cleaning filters ensure that invisible fine dust is captured. Models with a plasma ionizer can also neutralise a proportion of viruses and bacteria in the air. Products with surface-treated heat exchangers simply remove impurities with the condensation water.

Acoustic comfort 

Both the outdoor and indoor units of the Carrier air conditioners impress with their quiet operation. The indoor unit of the 40WHP model, for example, only generates a sound pressure level of 19 to 21 decibels (dB (A)) during cooling. This noise level is comparable to the rustling of leaves. With a sound pressure level of 37 to 40 dB (A), the operating noise of the outdoor unit is about as loud as the humming of a refrigerator. 

User-friendly operation

Every Carrier air conditioning system is supplied with a remote control that enables convenient control of the functions. There is also the option of operating the devices via an app. With the help of a wireless adapter, this is also possible for models that do not have an integrated WLAN module. The Carrier App In The Air is intuitively designed, enables energy monitoring and is compatible with Google Home Assistant and Amazon Alexa.

Customised climate solutions

The Carrier product portfolio includes models that meet a wide variety of requirements and conditions thanks to their broad range of functions and performance. Depending on the model, the cooling capacity is between 2.0 and 7.0 kilowatts (kW) and the heating capacity between 2.5 and 8.0 kW. As a multi-split version, up to five rooms can be operated with one outdoor unit. This allows a flexible use.

Efficient operation

The advanced technology of Carrier air conditioning systems ensures efficient and economical operation all year round. The inverter technology, among other things, contributes to this. The smooth adjustment of the output to the room temperature makes it possible to optimise energy consumption. 

Harmonious appearance           

Carrier sets high standards for product design in every price segment to ensure that the indoor unit of the air conditioning system blends harmoniously into the room. Contemporary shapes and colors ensure an appealing look. With the 40 WHP model, it is also possible to customise the housing with a coloured cover to match the interior design.    

R32 refrigerant      

The refrigerant R32 (Difluoromethane) has a lower environmental impact than conventional refrigerants (e.g. R410A) and meets the requirements for the gradual reduction of greenhouse gas emissions in accordance with the European Union's F-Gas Regulation.

Important before buying an air conditioner

Before you buy a Carrier air conditioner, there are a few aspects to keep in mind. The cooling capacity of the system is particularly important. This should always be tailored to the individual circumstances. The following factors are relevant for the design:

• Room size

• Position of the rooms

• Window surfaces

• Condition of the exterior walls

• Heat sources (e.g. light, electrical household appliances, etc.)  

As part of a specialist consultation, an expert determines the required cooling capacity. This lays the foundation for permanently efficient operation.