Vaillant aroTHERM vWL Split plus 35/8.2 230V outdoor unit Split plus
Code: 0010039763Related products
Product detailed description
Vaillant aroTHERM VWL Split plus 35/8.2 230V is the outdoor unit of the air-to-water heat pump SPLIT system from the aroTHERM Split plus product range. It is the smallest performance level in this series, primarily intended for smaller family homes, apartments, and renovated buildings with lower heat loss, where the outdoor unit needs to be discreetly installed with minimal noise.
SPLIT system versus monoblock – what is the difference
Unlike monoblock heat pumps, where the entire refrigeration and hydraulic circuit (including the water-refrigerant heat exchanger) is located directly in the outdoor unit and only heated water is led into the house, the SPLIT system aroTHERM Split plus operates differently. The outdoor unit VWL 35/8.2 contains the compressor, evaporator, and fan – that is, the refrigeration circuit, which operates with refrigerant R32. This refrigerant is piped (not heated water) to a separate indoor hydraulic unit (e.g., the VWL ...IS series), which is located inside the building – in a technical room, boiler room, or other suitable space.
The advantage of this solution is that freezing of water in the pipes outside the house is not a risk (the refrigerant circuit does not freeze), the outdoor unit is more compact and quieter, and the indoor unit can also carry a hot water storage tank or an electric auxiliary heating element. The disadvantage is more complex installation – the refrigerant circuit between the outdoor and indoor units (copper piping) must always be professionally soldered, evacuated, and charged with refrigerant, which can only be performed by a person with a valid refrigeration certification (F-gas certification). This is exactly where the SPLIT system differs from the monoblock, where it is sufficient to connect the outdoor and indoor units with standard heating piping, and the installation can be handled by a heating technician without refrigeration qualifications.
This outdoor unit VWL 35/8.2 AS 230V is therefore specifically designed to work in conjunction with an indoor hydraulic unit from the aroTHERM Split plus series (VWL .../6 IS series or compatible module), and is not intended for standalone operation or combination with monoblock indoor units of other series.
Technical specifications of the outdoor unit VWL 35/8.2 AS 230V
- Nominal heating capacity (A7/W35): 3.54 kW
- Power consumption at A7/W35: approx. 0.71 kW
- COP (A7/W35): 5.0
- Cooling capacity (A35/W18): up to 4.46 kW
- EER (cooling, A35/W18): 4.4
- Refrigerant: R32 (GWP 675), an environmentally friendlier alternative to the older R410A, with a lower refrigerant charge volume for the same capacity
- Energy efficiency class (heating, average climate, 35 °C): A+++
- Sound power level – standard mode (A-7/W35): 57 dB(A)
- Sound power level – quiet mode (reduction to 60 % speed): 47.6 dB(A)
- Dimensions of the outdoor unit (H × W × D): 765 × 1 100 × 450 mm
- Operating weight: 86 kg
- Power supply: 230 V / 50 Hz, single-phase
- Maximum temperature of heating water: 62 °C (with electric booster in the indoor unit up to 70 °C for DHW)
- Maximum distance between outdoor and indoor units: 40 m
- Maximum height difference: 30 m (outdoor unit higher) / 10 m (outdoor unit lower)
- Operating temperature range (heating): from approximately −20 °C to +35 °C
The stated values are based on the official technical data from the manufacturer Vaillant for the aroTHERM Split plus series and may slightly vary according to the specific product revision and national certification – for binding values in the project, we recommend referring to the current technical data sheet and project documentation from Vaillant.
Why choose the Split plus series
aroTHERM Split plus is designed as a flexible solution where the investor requires a maximally quiet outdoor unit (for example, in dense urban areas, near neighboring properties, or in garages), and at the same time wants to use the indoor unit for hot water preparation via an integrated storage tank or connection to an external storage tank. Thanks to the fact that the refrigerant circuit is separated from the heating water, the risk of freezing of the piping between the units during power outages in freezing weather is also eliminated – which is one of the common risks with improperly dimensioned monoblock solutions in extreme cold.
The model 35/8.2 is the smallest performance level in the series (alongside variants 55/8.2 and 75/8.2), suitable mainly for well-insulated new builds and low-energy homes with a heat loss of approximately 3.5–5 kW at the design outdoor temperature, or as an auxiliary source in a bivalent system.
Installation and assembly
The outdoor unit is installed on a solid foundation or wall/ground consoles with sufficient clearance from obstacles (air intake and exhaust), to prevent recirculation of cooled air and ice formation. Between the outdoor and indoor units, refrigerant piping (copper lines with thermal insulation) is run, which must be:
- soldered in a protective nitrogen atmosphere,
- pressure tested and evacuated to the specified level,
- charged with refrigerant R32 according to the length of the route (refrigerant added according to the manufacturer's tables),
- electrically connected to the indoor unit (control and power cabling).
This part of the installation can only be performed by a company or technician with a valid certification for work with F-gases (refrigerants) and a Vaillant certificate, as it involves work on a pressurized refrigeration circuit. The connection of the heating system (radiators, underfloor heating, DHW storage tank) is implemented on the indoor unit side in the usual way, just like with other Vaillant heat pumps.
Before ordering, we recommend verifying compatibility with a specific aroTHERM Split plus indoor unit (the performance level should match the outdoor unit) and having the building's heat loss calculated to ensure that the 3.5 kW capacity is sufficient for the house.
Frequently asked questions (FAQ)
Can I connect this outdoor unit to a monoblock indoor module?
No. The SPLIT outdoor unit operates with a refrigerant circuit and must be paired exclusively with an indoor hydraulic unit from the aroTHERM Split plus series, which contains a refrigerant-water heat exchanger. Monoblock indoor units (e.g., from the aroTHERM plus monoblock series) are not compatible.
Who can install the refrigerant piping?
Only a person or company with a valid certificate for work with fluorinated greenhouse gases (refrigeration certification), in accordance with Vaillant's installation instructions. Without this qualification, it is not legally possible to put the system into operation.
What refrigerant does the unit use and is it safe?
The unit uses refrigerant R32, which has a lower global warming potential (GWP 675) compared to the older R410A. It is slightly flammable (class A2L), so installation and topping up must be carried out in accordance with the manufacturer's safety instructions.
Is this unit suitable for cooling in summer?
Yes, in combination with a suitable indoor unit and distribution (e.g., floor heating/cooling or fancoils), the Split plus series can also provide passive or active cooling of the building.
How far can the outdoor unit be from the indoor unit?
The maximum length of the refrigerant piping is 40 m, with a maximum height difference of 30 m (outdoor unit higher) or 10 m (outdoor unit lower) – specific limits and the need for additional refrigerant charge are governed by the manufacturer's project documentation.
What is the noise level of the unit at night?
In the quiet night mode (reduction of fan speed to 60 %), the unit achieves a sound power level of approximately 47.6 dB(A), making it one of the quietest units in its performance class on the market.
Do I need a hot water tank for this unit as well?
It depends on the selected indoor unit – some variants of the Split plus range have a built-in tank, while others require an external hot water tank. We recommend consulting with a designer or installation company.
Delivery and Payment
Due to the weight and dimensions of the outdoor unit, this product is transported by specialized transport (pallet transport) and the payment is made in advance by bank transfer. The exact delivery conditions and delivery times will be confirmed by us during order processing.
In the case of interest in a complete set (outdoor + indoor unit, optionally a hot water tank and sensoCOMFORT control), please contact us – we will gladly prepare a custom quotation according to the parameters of your property.
Additional parameters
| Category: | aroTHERM plus Split plus (R32) |
|---|---|
| Warranty: | 2 years |
| Weight: | 40 kg |
| Power: | 35 kW |
| SCOP (seasonal coefficient of performance): | 8.2 |
| Power supply: | 230 V |
| Unit type: | Outdoor unit Split plus |
| Maximum distance between units: | 40 m |
| Efficiency: | A+++ |
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About the company
The Vaillant Group is synonymous with heating and hot water preparation, placing particular emphasis on quality, reliability and user comfort. Its heating technology products are present in more than 100 countries around the world. The group unites the brands Vaillant, Saunier Duval, AWB, Bulex, DemirDöküm, Glow worm, Hermann Saunier Duval and Protherm. Each of these brands has extensive experience in the production of heating equipment, as most of them have been active in this segment for more than 80 years. With its 140 years of market presence, the brand Vaillant is among the largest and most significant. It has long been a market leader and a pioneer in the development and innovation of heating technologies in Europe. The Vaillant Group has an extensive network of sales representatives and thousands of satisfied customers around the world.
The extensive portfolio of the Vaillant Group includes modern heating technologies that are energy-saving, efficient and contribute to environmental protection. Thanks to a wide range of products and models, every customer can find exactly what they need here. The range includes wall-hung and floor-standing boilers, hot water storage tanks or electrical appliances. In the market of wall-hung boilers, the company is even number one in Europe with a 26 percent market share. The Vaillant Group is not specialized only in the development and production of boilers; its product portfolio also includes technologies that use renewable energy sources, such as solar systems or the most modern heat pumps and air conditioners. It also offers recovery or cogeneration units or zeolite heat pumps to users.
Vaillant Group thinks ahead every day and offers individual solutions for every need and type of energy. Its success is also based on research and development, which always takes place in line with the wishes of customers. The company's research and development department is among the largest and above all the most creative departments in this segment. The team of developers is constantly working on new devices and technological systems that are increasingly easy to operate and already meet the demands of tomorrow. Whether it is about energy solutions of the future or about the best way to use fossil fuels, the company Vaillant Group tries to anticipate new trends and to be always one step ahead of others. Proof of this is the registration of up to 100 new patents every year. In the field of production, the company places the greatest emphasis on achieving the highest quality of boilers, which represents perfection in every detail.
The Vaillant Group has its presence in most countries of the world. Slovakia is no exception, where the company Vaillant Group Slovakia, s. r. o. is located, representing the brands Vaillant and Protherm. Heating equipment of the Vaillant Group is produced in seven production plants, two of which are located on our territory. These factories employ more than 1,300 people in total. The production plant Protherm Production with its headquarters in Skalice specializes in the production of electric and floor-standing boilers for all brands belonging to the Vaillant Group. It can also boast its own research and development center, which is among the most modern in Europe. The second production plant in Slovakia is Vaillant Industrial Slovakia in Trenčianske Stankovce, which produces modules for wall-hung boilers for the entire group.
History of the company Vaillant
The history of the company Vaillant goes back to the year 1874, when it was founded by Johann Vaillant in Remscheid, Germany. Since then, the company Vaillant has been a leader in the field of heating and ventilation technologies.
History of the company Vaillant
1874 Plumber Johann Vaillant founded the company.
1894 Patented for the invention of a gas water heater with a "closed system" design.
1899 Registered company logo, the Easter Bunny.
1905 Development of a wall-mounted water heater, patented under the designation "Geyser".
1924 Development of a wall-mounted boiler for heating.
1955 Production of the millionth appliance after the end of the Second World War.
1960 Production of electrical appliances begins.
1967 Development of a combined wall-mounted boiler.
1974 11 million appliances sold since 1974.
1992 Establishment of subsidiary companies – in the Czechoslovak Republic, Hungary, Poland and Turkey.
1993 Separation of Czechoslovakia leads to the creation of a separate sales representation in Slovakia.
1999 Anniversary, 125th anniversary of the founding of the company, 40 million appliances sold in the entire history of the company.
2001 The Vaillant Group is formed, covering eight significant manufacturers of heating equipment in Europe, including the boiler manufacturer Protherm in Slovakia.
2003 The Vaillant Group production plant in Skalice specializes in the production of floor-standing boilers also for other brands belonging to the VG group.
2004 Vaillant Group opens a new production plant in Trenčín, Slovakia, for the production of hydraulic groups for wall-hung boilers.
2009 10,000,000 modules for heating equipment produced at the VG Trenčín plant.
Easter Bunny in the logo - intended for the success of the company
Pink dwarfs and cute animals stand around and admire the miracle of the egg. Johann Vaillant is fascinated by the scene and decides to buy both the picture and the copyright. For Vaillant, this means the establishment of its brand and an extremely successful story.
Very distinctive brand profile
Since 1899, the motif has adorned all products, catalogs and brochures. In a few short years, Vaillant built an excellent reputation that spread throughout Germany and even beyond its borders. Vaillant gave its logo clear lines and outlines. "The Bunny in the Egg" remains the central theme, but the word "Vaillant" is added.
Many Germans know that the Vaillant Bunny belongs to a company based in North Rhine-Westphalia. Moreover: more than 70% of all Germans have heard of the company Vaillant. In Austria and the Netherlands, the company achieves similar results for its image.
Sustainability
As a forward-looking, family-owned company, we accept special responsibility for the environment, for our employees and for society. We are convinced that economic success, sustainable and profitable growth are inseparably linked to a commitment to social and ecological standards.
In order to fulfill this commitment, we are committed to carrying out our activities in a sustainable manner within the strategic S.E.E.D.S. Program (Sustainability in Environment, Employees, Development & Products and Society). The definition of these areas of interest is based on a comprehensive understanding of sustainability, in which we also take into account key issues of our core activities.
