Inverter Air conditioner AUX C+++ ASW-H18E3A4/CAR3DI-C7 + AS-H18E3A4/CAR3DI-C7 / 18 000 BTU
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Inverter Air conditioner AUX C+++ ASW-H18E3A4/CAR3DI-C7 + AS-H18E3A4/CAR3DI-C7 / 18 000 BTU
High efficiency
AUX C+++ series air conditioners achieve the highest energy
efficiency (A+++) in cooling mode and A++ in heating mode thanks to a
combination of innovative technologies and high-quality materials. And the
reduced energy consumption saves both the environment and your budget.
Comfortable cooling
In order to disperse the cooled air as quickly as possible
in summer, the indoor units of the air conditioners are equipped with a turbine, which, however, even at minimum speed creates a draft that causes an unpleasant sensation for some people. To combat this, AUX have developed a special technology - nearly 2,500 vents spaced along the entire length of the indoor unit's damper. This allows the C+++ series air conditioners to eliminate cold drafts without reducing cooling capacity on hot days.
Plasma filter
The AUX C+++ inverter air conditioner will ensure the perfect climate and air quality in your home or office thanks to the built-in plasma filter. The cold plasma eliminates dust, removes odors and smoke, thus providing cleaner air and a healthier indoor environment.
Wi-Fi control
For added convenience, AUX's C+++ series air conditioners
can be controlled remotely using the included Wi-Fi controller. You only need to follow the instructions to activate and use it from your smartphone.
Fast comfort throughout the room
When designing the indoor unit, the designers mainly considered two things - style and functionality. AUX made sure that one didn't get in the way of the other. For greater airflow and faster cooling or heating
of the room, the company's engineers have provided wider than standard vents, elegantly covered by a flap with almost 2,500 fine openings.
Removable cover
Regular maintenance of the air conditioner is essential for
its proper and economical operation. A removable cover is provided on the indoor unit for easy disassembly and cleaning. With just a few movements you will have full access to the filters and heat exchanger.
Reminder for cleaning filters
A rule that is often forgotten is the need to regularly
clean the air conditioning air filters. This is a quick and easy procedure that
improves not only the air quality, but also the performance of the air
conditioner. If the filters have been heavily soiled for too long, it can even
cause the entire machine to fail. To avoid this unfavorable scenario, the
engineers in the R&D department at AUX have equipped the software with a function that reminds you when it's time to clean the filters.
Precise temperature control
Thanks to the stylish wireless remote, you'll be able to
adjust the desired temperature in 1℃ increments over a wide range from 16℃ to 32℃. You can decide which is the most efficient and comfortable option for you or leave this decision to the air conditioner software by selecting automatic mode. The functions are numerous and varied and each one is designed with you and your comfort in mind.
Reliable operation in freezing temperatures
The additional heating system on the outdoor unit of C+++
air conditioners gives you the security on colder winter nights that your home heating is guaranteed even at -25 °C outside temperature.
Sleep mode
By activating the mode, the air conditioner stops working for 10 hours, after which it will resume its previous mode.
Self-cleaning
The air conditioner will automatically clean dust from the evaporator and dry it, increasing efficiency.
Auto restart
When the power fails, the air conditioner remembers the settings and resumes operation when power is restored.
Self-diagnostics
If operation is out of the norm or a problem with a system component, an error code will appear on the display to guide service technicians for easier and faster troubleshooting.
Double-sided installation
The design of the air conditioner allows the connection of the ducts to be made on both the left and right side of the indoor unit.
8 ºC constant temperature
The air conditioner will maintain a minimum temperature of 8 ºC, preventing over cooling of the dwelling.
PM 2.5 sterilization
Absorbs fine particulate matter up to PM 2.5 in size
Cold plasma
Cold plasma eliminates dust, removes odors and fogging.
Works down to -25ºC
The optional heating system on the outdoor unit of the air conditioner allows operation at -25 °C outdoor temperature.
Wind Free
In Cool mode, the air jet passes through a special propeller with a large number of small openings, allowing the jet to pass through without feeling a cold draft.
AUX ASW-H18E3A4/CAR3DI-C7 inverter air conditioner delivering 18000 BTU (3.5 kW) cooling. Quiet operation, energy-efficient, designed for year-round comfort.
Key features
| Model | ASW-H18E3A4/CAR3DI-C7 |
|---|---|
| Cooling power | 18000 BTU |
| Cooling capacity | 3.5 kW |
| Heating capacity | 4.2 kW |
| Recommended room size | 35–40 m² |
| Refrigerant | R32 |
Performance
| SEER (cooling) | 8.8 |
|---|---|
| SCOP (heating) | 4.7 |
| Sound level | 20 dB |
Smart features
- Smartphone app control
Installation
Split system: outdoor + indoor units
About the brand
AUX is a Chinese HVAC manufacturer specialising in inverter air conditioners with a strong European footprint.
Inverter compressor technology adjusts power output continuously, reducing energy consumption and ensuring stable indoor temperatures throughout the day. Ideal for both residential and small commercial spaces.
Legal Notices — Installation & F-Gas Regulation
Fluorinated greenhouse gases: This unit contains the refrigerant R-32 (GWP 675, hermetically sealed system). Installation, maintenance and disposal must be carried out by a certified technician in accordance with EU Regulation 517/2014 (revised by Regulation (EU) 2024/573). For customers in the United Kingdom, the UK F-Gas Regulations 2015 (as retained EU law) apply equivalently.
Installation: Self-installation is not permitted. On request we can arrange a certified F-Gas installer in your region.
Frequently Asked Questions
How do I choose the right BTU size for my room?
A rough rule is ~600 BTU per m² for standard insulation. For sun-facing or top-floor rooms add 15–20 %. Our team is happy to advise.
Do I need a certified technician for installation?
Yes — split air conditioners with fluorinated refrigerant must be installed by a certified F-Gas technician (EU Regulation 517/2014). Self-installation is not permitted. We can arrange a qualified installer in your region.
What warranty is included?
Standard manufacturer warranty is 36 months on the unit, provided installation is carried out by a certified F-Gas technician. Detailed warranty conditions are in the product datasheet.
What do SEER and SCOP mean?
SEER (Seasonal Energy Efficiency Ratio) is the seasonal cooling efficiency — higher is better. SCOP (Seasonal Coefficient of Performance) is the seasonal heating efficiency. SEER ≥ 6.0 and SCOP ≥ 4.0 are considered very good for residential split air conditioners.
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We want you to be 100% satisfied with your purchase. Items can be returned or exchanged within 14 days of delivery.
