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- 3.5 kW
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Rotenso
Versu Pure
The Rotenso Versu Pure 3.5 kW is a quiet wall-mounted air conditioner with heating down to -25°C, an iAIR ionizer and Smart Wi-Fi app control.
- Wi-Fi
- White
- Heating function
- Anti-allergen
- Low noise
- Self-cleaning
- Cooling capacity
- 3.5kW
- Indoor unit noise
- from19dB(A)
- Heats in outdoor frost
- down to−25°C
Price incl. installation
Price on request
What installation includes
- Installation of the indoor and outdoor unit
- Up to a few metres of refrigerant, electrical and condensate routing
- Wall penetration and neat routing of the installation
- Carrying out the vacuum and checking the system for tightness
- Charging with refrigerant and starting the unit up
- Checking the operating parameters and configuring the controls
- Operating instruction and handover of the warranty documents
The Rotenso Versu Pure 3.5 kW is an inverter wall-mounted air conditioner for a single room, combining low noise with a wide winter operating range. The manufacturer quotes a nominal cooling capacity of 3.5 kW and a heating capacity of 3.8 kW. The compressor varies its output smoothly between 1.3 and 4.3 kW in cooling and between 0.9 and 4.4 kW in heating, so the unit does not cycle on and off but holds the set temperature without sudden swings. For a living room or bedroom in a Warsaw apartment this is a capacity class that usually fits, and we check the match for your specific room during the free on-site assessment.
Seasonal efficiency is SEER 8.5 in cooling (class A+++) and SCOP 4.6 in heating (class A++). The indoor unit runs at 19 to 40 dB, and the outdoor unit reaches 53 dB. The outdoor operating range is -15°C to 50°C in cooling and -25°C to 30°C in heating, so the unit can support your heating on cooler days in spring and autumn as well. The refrigerant is R32, and the maximum pipe length between the units is 25 m.
On top of these figures come the features that matter most day to day: a rotating horizontal louver with 180° of travel, automatic 4D louvers, the iAIR Super Ionizer, a 3-in-1 filter and control from your phone through the Smart Wi-Fi function. We quote the installed price after a free assessment, and the sections below explain exactly what this model offers and who it suits. All figures in this description come from the manufacturer's data for the 3.5 kW variant, so you can compare them directly with other units in our range.
Overview and positioning
Versu Pure is the 3.5 kW version in the Versu series, designed to air-condition a single room such as a living room, bedroom or home office. The variant described here has a nominal cooling capacity of 3.5 kW and a heating capacity of 3.8 kW. That capacity class suits rooms of the size typical for apartments rather than large open spaces, so before buying it is worth calculating the room volume, checking how much sun the windows get and counting the people and heat-producing equipment in the room.
Compared with other Rotenso models, Versu Pure stands out mainly for its low noise and its winter operating range. The manufacturer states an indoor unit noise level from 19 dB, and heating is possible at outdoor temperatures down to -25°C. Both matter in a flat: the first in a bedroom at night, the second in spring and autumn, when central heating is either not yet on or already scaled back and the room still feels cold.
We position this model as a sensible choice for a customer who wants comfort features, namely an ionizer, automatic louvers and an app, but does not need an elaborate set of sensors. If you prefer a different set of functions, the LeoKlima range includes other Rotenso models that we are glad to compare with you during the quote. Whichever you choose, the figures you read here are the manufacturer's own.
Cooling and heating technology
At the heart of the unit is a DC inverter compressor. According to the manufacturer, the control system can select one of 30 compressor frequency ranges to balance output against energy use. In practice, once the room reaches the set temperature the unit slows down and runs at low power instead of switching on and off repeatedly. The fans are driven by BLDC motors with 12 speed steps, which lets their operation match the conditions in the room.
The seasonal figures are SEER 8.5 in cooling (A+++) and SCOP 4.6 in heating (A++). Cooling capacity varies from 1.3 to 4.3 kW, and heating capacity from 0.9 to 4.4 kW. The manufacturer also describes a year-round operation package with a drain pan heater and a compressor crankcase heater, which help prevent ice on the outdoor unit and keep operation stable in frost. The outdoor temperature range is -15°C to 50°C in cooling and -25°C to 30°C in heating.
It is worth remembering that an air conditioner is an air-to-air heat pump, so at very low temperatures its heating output falls, and heating is best treated as a supplement to your main heat source unless the building was designed differently. The refrigerant is R32, and the design also includes the SMART 8°C heating function, which switches heating on by itself when an empty room gets too cold.
Comfort and air quality
The most important comfort feature is quiet operation. The indoor unit runs at 19 to 40 dB, and the manufacturer describes the eMOTO super quiet mode, in which the unit does not disturb rest. The outdoor unit reaches 53 dB, which is worth considering when choosing where to mount it, especially if bedroom windows face a balcony or courtyard. A silent mode also mutes the audible signals and light indicators, and the sleep function automatically adjusts temperature and fan speed for the night.
Several elements work on air quality. The HD iAIR pre-filter catches larger particles, and the 3-in-1 filter combines Silver Ion, photocatalytic and Cold Nano layers. The iAIR Super Ionizer produces negative oxygen ions which, according to the manufacturer, reduce viruses, bacteria, dust mites and allergens and remove unpleasant odors. The iClean automatic cleaning function dries and cleans the inside of the unit, which limits the growth of bacteria and mould; the manufacturer notes that it is not available in a Multi Split system.
The gold-coated fins on the heat exchangers are an anti-corrosion coating that protects the unit from corrosion. It does not replace regular maintenance, however: the filters in the indoor unit should be cleaned according to the manual, and the whole system is worth servicing once a year. A clean filter means less resistance to airflow, quieter operation and better cooling performance, so this small habit genuinely pays off.
Controls and Wi-Fi
Day to day the unit is operated with a wireless remote, which contains an additional temperature sensor. In SMART Follow mode the unit measures the temperature where the remote is placed rather than only at the indoor unit, which helps hold comfort exactly where you are. A timer lets you set switch-on and switch-off times, and the auto-restart memory restores the previous settings after a brief power cut.
The manufacturer describes the Smart Wi-Fi function: with a Wi-Fi modem the unit can be controlled from a tablet or smartphone, both at home and away. App control is therefore possible, but the description does not say that the module always comes in the box, so we confirm its availability at the quote stage. With the app you can, for example, switch cooling on while you are on your way home so the apartment is pleasantly cool when you arrive.
The manufacturer also lists an air humidity sensor, available through the mobile app and not available in a Multi Split system, and a wired controller as an option with a built-in port. Being able to switch off the display on the panel is handy in a bedroom, and louver position memory means the airflow returns to its previous direction after restart without extra settings. During commissioning we show you how to use the remote, sleep mode and timer, so you do not have to search the manual in the first days and the settings fit your daily routine from the start.
Design and build
The indoor unit has a white, simple housing with a horizontal louver under the front panel, which blends well with the typical light walls of apartments. The dimensions are 920 mm wide, 211 mm deep and 321 mm high, and the weight is 11.3 kg. With these dimensions the unit takes up little space above a door or in the upper part of a wall, and the shallow housing does not protrude far into the room, which matters in a small bedroom.
Airflow is well thought out. The horizontal louver rotates through 180° up and down, and built-in actuators move the vertical louvers and the horizontal one from the remote or a wall controller (automatic 4D louvers). The manufacturer also describes cascading upper and lower airflow and the wide eMOTO airflow angle, which help spread air around the whole room so that the stream does not hit people who are sitting or sleeping directly.
On the build side, the two-sided condensate drain is worth mentioning: water can be routed out from either the left or the right side of the indoor unit, which simplifies installation in different room layouts. The outdoor unit uses densely finned copper tubes and bionic-inspired fan blades designed to reduce air resistance and noise. In practice this means that when choosing a spot for the outdoor unit, it is not only the look of the facade that counts, but also access during servicing and the distance from the neighbors' windows, which we discuss during the assessment.
Installation and service
As part of the installation, LeoKlima mounts the indoor and outdoor units and runs up to a few meters of refrigerant, electrical and condensate lines. This includes the wall passage and neat routing of the installation. We then evacuate the system and check it for leaks, charge it with refrigerant and start the unit, check the operating parameters and configure the controls. Finally we walk you through the operation and hand over the warranty documents.
We agree the scope at a free assessment, and any extra charges are discussed before work begins. They can relate to a longer line run, drilling through concrete or reinforced concrete, wall chasing, a condensate pump or work from a lift platform. For Versu Pure the maximum pipe length between the units is 25 m, but in an apartment we usually aim for the shortest and least visible route. We quote the installed price after a free assessment.
After installation the unit needs ordinary, sensible care: regular cleaning of the filters in the indoor unit, checking that the condensate drain is clear and an annual service. The service includes cleaning the heat exchanger and checking the system for leaks and correct operation before the season. This keeps the unit cooling effectively, running quietly and holding its efficiency, and any faults show up before it gets really hot. The manufacturer also provides a self-diagnosis function: in case of a fault, an error message appears on the unit's display or on the wired controller, which shortens the time needed to find the cause during a service visit. It helps to note the code and give it when you report the problem.
Who this model is for — summary
We recommend the Rotenso Versu Pure 3.5 kW for people who want a quiet air conditioner for a bedroom, living room or home office in an apartment, with spare capacity for cooler transitional days. An indoor noise level from 19 dB, SEER 8.5, SCOP 4.6 and heating down to -25°C form a coherent set of figures. If you value an ionizer, automatic louvers and app control, this model delivers them without unnecessary complication.
It is not the right choice for everyone. If the room is very large, has big south-facing windows, or you need the air conditioner as the main source of heat in winter, consider a higher capacity or a model with a different profile. That is why we always start with a conversation and a free assessment, during which we check the room volume, the place for the outdoor unit and the possible installation route.
If you are considering Versu Pure, write or call LeoKlima. We will measure the room, discuss the installation scope and possible extra charges, and then prepare a quote. We quote the installed price after a free assessment, with no obligation and no surprises later in the process. When choosing, a simple rule helps: compare models by their own figures and features, not by name alone. Versu Pure offers 3.5 kW of cooling capacity, SEER 8.5, noise from 19 dB and heating down to -25°C. If those values fit your apartment and the way you use cooling, it is a good starting point for a quote; if not, we will point you to a sensible alternative.
Technical data
Specifications
| Cooling capacity (nom.) | 3.5 kW (range 1.3–4.3 kW) |
|---|---|
| Heating capacity (nom.) | 3.8 kW (range 0.9–4.4 kW) |
| SEER (cooling) | 8.5 — class A+++ |
| SCOP (heating) | 4.6 — class A++ |
| Refrigerant | R32 |
| Noise level (indoor, min.–max.) | 19–40 dB(A) |
| Noise level (outdoor) | 53 dB(A) |
| Indoor unit dimensions (W/D/H) | 920/211/321 mm |
| Indoor unit weight | 11.3 kg |
| Operating range (cooling, outdoor) | -15°C to +50°C |
| Operating range (heating, outdoor) | -25°C to +30°C |
| Max. pipe length | 25 m |
| Version (manufacturer revision) | R16 |
Questions
Frequently asked questions
Does the Rotenso Versu Pure 3.5 kW heat in frost?
According to the manufacturer, the unit operates in heating mode at outdoor temperatures from -25°C to 30°C. A year-round package with a drain pan heater and a compressor crankcase heater is meant to protect the outdoor unit from icing. Heating output does fall as the temperature drops, so in hard frost we treat the air conditioner as support for your heating rather than a replacement.
How loud is this air conditioner?
The indoor unit runs at 19 to 40 dB depending on fan speed, and the outdoor unit reaches 53 dB. The manufacturer also describes an eMOTO super quiet mode and a silent mode that mutes the unit's audible signals. We choose the outdoor unit's location with neighbors and bedroom windows in mind.
Can I control the air conditioner over Wi-Fi?
Yes, the manufacturer describes a Smart Wi-Fi function that lets you control the unit from a smartphone or tablet at home and away. The description does not state that the Wi-Fi module is always included, so we confirm availability during the quote.
What are the indoor unit dimensions and how long can the installation be?
The indoor unit is 920 mm wide, 211 mm deep and 321 mm high, and weighs 11.3 kg. The maximum pipe length between the units is 25 m. We quote the installed price after a free assessment.
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