The modern solution for every home: the AUX air conditioner with 5.4 kW
The AUX air conditioning system, with a capacity of 5.4 kW, addresses the growing demand for energy efficiency, comfort, and smart control. The AUX brand introduces the exceptional Q-SMART, Q-SMART Plus, and C-SMART model series, which offer the ideal balance between performance and energy efficiency. With a cooling capacity of 5.4 kW, these units are suitable for larger living spaces, offices, or commercial spaces where reliable operation and year-round comfort are essential.
AUX Q-SMART – An efficient foundation with an emphasis on quiet operation and stable performance
The Q-SMART model series is the ideal choice for users looking for a reliable solution with a modern design at an affordable price. The Q-SMART air conditioner offers a cooling capacity of 5.4 kW and a heating capacity of 5.6 kW, ensuring comfortable use even during transitional seasons and winter.
In terms of efficiency, the device achieves excellent results:
- Refrigeration energy efficiency class: A++
- Heating energy efficiency class: A+
- SEER (Seasonal Energy Efficiency Ratio for cooling): 6.1
- SCOP (Seasonal Coefficient of Performance for Heating): 4.0
A major advantage is the low noise level of the indoor unit, which ranges from 20 dB(A), making the unit ideal even for bedrooms or children’s rooms. The Q-SMART is equipped with a DC inverter compressor, which reduces energy consumption, extends the unit’s service life, and allows for precise maintenance of the set temperature without frequent cycling on and off.
Interesting features of the Q-SMART model include:
- Automatic heat exchanger cleaning, which prevents mold growth
- Silent Mode
- 3D air distribution for even cooling throughout the entire room

AUX Q-SMART Plus – Smart air conditioner with higher efficiency and Wi-Fi
The Q-SMART Plus model series is an evolution of the base model that takes comfort and energy savings to a new level. This model also features a cooling capacity of 5.4 kW and a heating capacity of 5.6 kW. So you don’t have to worry about a lack of capacity for more demanding spaces.
The Q-SMART Plus model achieves even better efficiency:
- Refrigeration energy efficiency class: A++
- Heating energy efficiency class: A+
- SEER: 7.3—which means exceptional efficiency in cooling mode,
- SCOP: 4.3 – reliable performance even in heating mode.
One of the biggest advantages of this series is its built-in Wi-Fi, which lets you control the air conditioner using your smartphone, no matter where you are. Using the app, you can turn on the air conditioner, set the desired temperature, or set a timer even before you get home.
Other interesting features include:
- Air ionizer – removes odors, bacteria, and allergens
- Eco mode – optimizes performance and energy consumption
- Weekly timer – allows for automated operation based on your household schedule
The indoor unit noise level of the Q-SMART Plus starts at 23 dB(A), making it one of the quietest units in its class.

AUX C-SMART – Maximum comfort without drafts
The C-SMART model series is designed for those who value comfort, design, and state-of-the-art technology. This model also offers a cooling capacity of 5.4 kW and a heating capacity of 5.6 kW, meeting the needs of larger living spaces year-round.
The device boasts excellent efficiency ratings:
- Refrigeration energy efficiency class: A++
- Heating energy efficiency class: A+
- SEER: 7.3
- SCOP: 4.3
The main innovation is draft-freetechnology, which distributes air evenly throughout the room without strong drafts, thereby eliminating the unpleasant sensation of a cold blast. This makes the C-SMART the ideal choice for households with children, the elderly, or more sensitive users.
Advantages of the C-SMART model:
- Dual air outlets for even airflow
- “Follow Me” function—a temperature sensor in the remote control allows for precise temperature control where you are
- Modern, minimalist design with an LED display and hidden controls
In this model as well, the indoor unit’s noise level starts at just 23 dB(A), ensuring quiet and undisturbed operation.

Conclusion
The 5.4 kW AUX air conditioner in the Q-SMART, Q-SMART Plus, and C-SMART series offer various levels of comfort, efficiency, and functionality—from a reliable entry-level model to smart Wi-Fi features and a luxurious draft-free solution. All models are quiet, energy-efficient, and suitable for both cooling and heating year-round.
Choosing the AUX 5kW air conditioner is an investment in comfort, health, and a modern home—no matter what your priorities are: simplicity, smart controls, or maximum comfort. AUX has the perfect solution for you.
Visit Slovklima.sk today and ensure comfort in your home.
FAQ
It is particularly suitable for larger rooms, open-concept living areas, living rooms, offices, or spaces with higher heat loads.
It offers cooling, heating, energy-efficient operation, quiet operation, and practical features for comfortable use at home.
Yes. The AUX air conditioner can also serve as a supplemental heat source during transitional seasons or when temperatures are milder.
Proper operation affects cooling speed, energy consumption, comfort, and the service life of the equipment.
Comfort is enhanced by quiet operation, an energy-saving mode, a timer, a remote control, and even airflow.
It is important to ensure proper placement of both the indoor and outdoor units, proper condensate drainage, electrical wiring, and professional installation.