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Fuji Electric
KLTA
A slim white wall-mounted Fuji Electric KLTA with 3.4 kW output and a 770 mm wide RSH12KLTA indoor unit, simple to run and free of unnecessary electronics.
- White
- Heating function
- Japanese technology
- Cooling capacity
- 3.4kW
- Indoor unit noise
- from21dB(A)
- Heats in outdoor frost
- down to−15°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 Fuji Electric KLTA 3.4 kW is a wall-mounted split air conditioner whose indoor unit carries the code RSH12KLTA and comes in white. Its dimensions are the easiest thing to remember: 770 mm wide, 250 mm high and 218 mm deep, at a weight of only 7.5 kg. The manufacturer describes the whole series as simple in form and environmentally minded, since the units run on R32 refrigerant. This model does not try to be a home control centre. It is meant to do what people buy it for: cool a room in a heatwave and top up the warmth when the radiators have not started yet or are no longer needed.
The figures you can rely on when choosing are specific. Nominal output is 3.4 kW in both cooling and heating, and the compressor can work anywhere between 0.9 kW and 3.7 kW, so it follows the momentary demand. Seasonal efficiency is SEER 6.7 in class A++ for cooling and SCOP 4.1 in class A+ for heating. The indoor unit runs at a noise level from 21 dB to 43 dB, depending on the fan speed you pick. Cooling is declared for outdoor temperatures from -10 to 52 °C, and heating from -15 to 24 °C.
The manufacturer lists a wireless remote control and an outdoor unit in the box. The description mentions neither a Wi-Fi module nor a phone app, so control happens through the remote and its daily timer. In exchange you get a set of practical functions: full power mode, economy mode, automatic mode changeover, automatic vertical louvres, a night programme, restart after a power cut, an LED filter-cleaning indicator and a washable casing panel. We quote the installed price after a free assessment, because it depends on the conditions in your particular flat.
Overview and positioning
The KLTA series sits at the basic end of the Fuji Electric range. It is not a line with elaborate internet control or a showy front panel, but a classic wall split designed to do its core job well. The 3.4 kW version with the RSH12KLTA indoor unit is meant for rooms where this power class is normally fitted: a bedroom, a living room in a flat or a small office. If you are asking yourself whether you really need an air conditioner with an app, this model is a good reference point, because it shows how much solid basic equipment gives you on its own.
In our view the biggest strength of the KLTA is the combination of three traits: a small width, a low noise figure on the quietest speed and seasonal cooling efficiency in class A++. A width of 770 mm means the unit fits where wider designs would force a compromise, for example above a door, on a narrow strip of wall beside a wardrobe or over a window in a cramped bedroom. The height of 250 mm and depth of 218 mm complete the picture of a very compact body that does not dominate the interior.
It is worth saying straight away what this model lacks. The manufacturer's material says nothing about Wi-Fi or an app, so we do not promise either. We also do not give the outdoor unit's model or noise level, because the source data does not contain them. Anyone who needs remote control from a phone should look at another model in our catalogue. Anyone who wants a simple unit that is cheap to live with day to day will find what they are after here.
Cooling and heating technology
The heart of the system is a compressor with adjustable output. The nominal 3.4 kW in cooling and heating can fall to 0.9 kW once the room is already cooled or warmed and only needs holding steady, and it can rise to 3.7 kW under heavy load. Running like this, without constant switching on and off, is gentler on the unit and on the people in the room, and it also means lower energy use than in simple on-off systems. In a flat where you need only modest power for most of the day, the modulation range matters in practice.
Two figures describe the energy efficiency. SEER 6.7 in class A++ covers cooling across the whole season, and SCOP 4.1 in class A+ covers heating. That means that in heating the unit is clearly more economical than an electric heater, and in cooling it sits in the upper part of the A++ scale. The refrigerant is R32, which the manufacturer presents as an ecological choice. Economy mode additionally shifts the temperature setpoint by a small amount: it raises it in summer and lowers it in winter, which cuts consumption without a noticeable loss of comfort.
The operating ranges have practical meaning. Cooling is declared for outdoor temperatures from -10 to 52 °C, and heating from -15 to 24 °C. In Warsaw conditions that means the unit copes with heat and with most winter days on which we want to warm the flat. In very hard frost, below the lower limit of the heating range, you should not count on performance matching the declaration, so we treat the KLTA as supplementary heating, not the sole heat source in winter. For a fast result there is full power mode, which drives the fan and compressor to their maximum.
Comfort and air quality
Comfort in this model rests on a few simple mechanisms. A microprocessor adjusts the airflow strength automatically as the room temperature changes, so you do not have to reach for the remote all the time. When the room is far from the target, the fan works harder, and once the temperature settles the speed drops. The automatic vertical louvres change the direction of the airstream up and down and create a fanning effect, which spreads the airflow instead of aiming it at one spot.
The indoor unit's noise level lies between 21 dB and 43 dB. The lower figure applies to the quietest speed and is comparable to a very quiet room, so the unit suits a bedroom without trouble. The upper figure is the fastest speed, which switches in mainly during full power mode or with a large temperature gap. Much depends on how you set the unit: with a gentle setpoint and the night programme on, it will spend most of its time on low speeds. For the record, the manufacturer gives no noise figure for the outdoor unit in the data available.
Air quality depends largely on a clean filter, which is why the LED indicator is useful: it lights up when the filter needs cleaning. You do not have to remember dates from a calendar. The manufacturer describes no special air-purifying systems here and we will not add any. The washable casing panel makes it easier to keep the inside of the unit tidy, and the night programme gradually changes the room temperature so that sleep is not interrupted by abrupt changes.
Controls and Wi-Fi
Control is handled by the wireless remote supplied in the box. The manufacturer's description mentions neither a Wi-Fi module nor a mobile app, so this model has no internet control and we do not suggest it can be added. That is an honest limitation worth weighing before you buy: if you plan to switch the air conditioner on from your phone on the way home, the KLTA will not do it. If the remote and the settings stored in the unit are enough for you, the lack of connectivity will not get in your way.
Instead of an app you get a daily timer. It lets you set one of four work cycles: switch on, switch off, switch on then off, and switch off then on. In practice this lets you arrange for the unit to start before you come back from work or to stop after you fall asleep. The night programme works separately and gently shifts the temperature through the night, while economy mode limits energy use through a small correction of the setpoint.
The automation is useful too. Automatic mode changeover switches the unit between cooling and heating according to the set temperature and the conditions in the room, which matters in transitional periods when mornings are cool and afternoons warm. After a power cut the unit restarts on its own with the last settings kept, so after a short outage you do not have to configure anything again. All these functions are operated from the remote, which makes the model easy even for people who are not fond of modern gadgets.
Design and build
The RSH12KLTA indoor unit is white and has a plain, compact body with no decorative extras. The manufacturer itself talks about simple design, and it is hard to disagree. Such a casing blends easily into a flat's decor, because white suits most walls and the absence of standout elements means the unit does not draw the eye. For people who do not want the air conditioner to be the dominant feature of the living room, this is an advantage.
The most important thing, though, is the size: 770 mm wide with a height of 250 mm and a depth of 218 mm. In flats there is often too little space above a window or near furniture, and a smaller width gives more freedom in choosing the spot. The weight of 7.5 kg is moderate, which simplifies hanging the unit on the wall and lowers the load on the mounting bracket. The slim body does not mean a compromise on output either: a nominal 3.4 kW is the right value for a typical room in an apartment block.
The washable casing panel deserves separate attention. The manufacturer writes about the possibility of removing the casing for cleaning, which makes it easier to keep the unit clean over many years of use. Dust that settles on the front can be removed without specialist tools. We do not list coatings or materials as extra functions, because the manufacturer does not describe them that way: we say only that the panel can be taken off and washed.
Installation and service
Installing the Fuji Electric KLTA covers mounting the indoor unit and setting the outdoor one, as well as running the installation between them. The standard scope includes up to a few metres of refrigerant, electrical and condensate routing, passing through the wall and neat routing of the installation. We then evacuate the system and check it for leaks, charge it with refrigerant and start the unit. Finally we check the operating parameters, configure the controls, walk you through using the unit and hand over the warranty documents.
Some items can affect the cost and we discuss them before work begins. They are a longer run, drilling through concrete or reinforced concrete, wall chasing, a condensate pump and work from a lift platform. We settle the scope at a free site audit, during which we look at where the units will go and choose the solution that fits the flat best. For this model we do not state a maximum installation length, because the source does not contain that value. We quote the installed price after a free assessment.
Running the unit is simple but needs regularity. The LED indicator reminds you to clean the filter, and the casing panel can be removed and washed. Beyond that we recommend periodic service checks of the whole system, including the condensate drain and the condition of the heat exchanger. Clean filters and exchanger mean lower energy use, quieter operation and better air in the room. It is also worth glancing at the outdoor unit now and then for leaves, dust and other debris.
Who this model is for — summary
The KLTA 3.4 kW is a good choice for someone furnishing a typical Warsaw flat who wants an air conditioner that is simple, slim and cheap to run day to day. The 770 mm width makes finding a spot easier, SEER 6.7 in class A++ and SCOP 4.1 in class A+ keep bills down, and noise from 21 dB means the bedroom will not become a problem. The daily timer and night programme are enough to plan operation without any app.
It is not a model for someone who wants to manage air conditioning from a phone. Wi-Fi is absent from the manufacturer's description, so if remote control matters to you, pick another item from the catalogue. Nor is it the only heat source for the hardest frosts: heating is declared down to -15 °C outdoors, and below that you need a backup solution.
If your priorities are simplicity, a compact body and sensible energy use, the KLTA is worth a closer look. Send us an enquiry and we will arrange a free audit. We will see the room, choose the installation spot and give you the installed price after a free assessment, with no obligation on your side.
Technical data
Specifications
| Model (indoor / outdoor unit) | RSH12KLTA |
|---|---|
| Cooling capacity (nom.) | 3.4 kW (range 0.9–3.7 kW) |
| Heating capacity (nom.) | 3.4 kW (range 0.9–3.7 kW) |
| SEER (cooling) | 6.7 — class A++ |
| SCOP (heating) | 4.1 — class A+ |
| Refrigerant | R32 |
| Noise level (indoor, min.–max.) | 21–43 dB(A) |
| Indoor unit dimensions (W/D/H) | 770/218/250 mm |
| Indoor unit weight | 7.5 kg |
| Operating range (cooling, outdoor) | -10°C to +52°C |
| Operating range (heating, outdoor) | -15°C to +24°C |
Questions
Frequently asked questions
Does the Fuji Electric KLTA have Wi-Fi and an app?
No. The manufacturer's description mentions neither a Wi-Fi module nor an app, so control is through the wireless remote. The remote offers a daily timer, a night programme and the other functions.
How loud is the indoor unit?
The indoor unit's noise level is between 21 dB and 43 dB, depending on the fan speed. The manufacturer gives no noise level for the outdoor unit in the data available.
Does the KLTA heat in frost?
Heating is declared for outdoor temperatures from -15 to 24 °C, and SCOP is 4.1 (class A+). Below -15 °C you should not count on performance matching the declaration, so we treat this model as supplementary heating.
How much space does the indoor unit take?
The RSH12KLTA unit is 770 mm wide, 250 mm high and 218 mm deep, and weighs 7.5 kg. We settle the exact mounting spot at a free site audit.
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