Vaillant VU 256/5-5 ecoTEC plus for storage tank
Code: 0010021877-BR-0010011739Related products
Product detailed description
Wall-hung condensing boiler VU 256/5-5 ecoTEC plus for storage tank
- heating and hot water preparation
- can be combined with the wall-hung, indirectly heated actoSTOR storage tank
- VIH CL 20 S with layered hot water storage (only "VUW" version)
- designed for underfloor and radiator heating
- space saving – the boilers are characterized by compact dimensions
- can be installed in attic spaces
- operation independent of or dependent on room volume (combustion air supply)
- Aqua-Power Plus function delivers up to 21% higher output when preparing hot water
- NOx value in flue gases below 60 mg/m3
- standardized utilization rate of 109%
- smooth output control
- backlit text display
- Thermo-Compact module equipped with a stainless steel burner and fan
- automatic diagnostic system (digital display of operating states and analysis of boiler mode)
- option to prepare the heating system before the boiler itself is installed
- ready for connection of a storage water heater
- the VU boiler already includes a built-in diverter valve (except VU 466 and VU 656)
- reduced electricity consumption
- highly efficient electronically controlled circulation pump (only "plus" version)
- expansion vessel (except VU 466 and VU 656)
- automatic air vent
- condensate drain (siphon)
- integral condensing heat exchanger made of stainless steel
- built-in control of the indirectly heated storage tank
- electronic setting of reduced heating output
- built-in brass three-way diverter valve (only "plus" version and except VU 466 and 656)
Technical data
- Rated heat output range P at 50 / 30 °C 5.7 - 26.5 kW
- Rated heat output range P at 80 / 60 °C 5.2 – 25.0 kW
- Max. heat output for hot water heating P at 80 / 60 °C - 30.0 kW
- Unit dimensions (H x W x D) - 720 x 440 x 338 mm
Additional parameters
| Category: | older versions until 2013 |
|---|---|
| Warranty: | 2 years |
| Automatic diagnostic system: | yes |
| Safety thermostat: | yes |
| CE number: | 1312BV5392 |
| Included accessories: | power cable, siphon, manual, warranty card |
| Electrical class: | I |
| Electrical protection rating: | IPX4D |
| Electronic ignition: | Yes |
| Electronics: | eBus 2.0 (from 2014 version) |
| ? Expansion vessel: | 10-litre |
| Weight of empty boiler: | 37 kg |
| Flue gas CO value: | 98 ppm / 105 mg/kWh |
| Flue gas CO2 value: | 105 % |
| Upper boiler output: | 26,5 kW |
| Current intensity: | 0,75 A |
| Country of origin: | EU |
| Summer mode: | Yes |
| Maximum working pressure: | 300 kPa |
| Maximum DHW pressure: | 1 mPa |
| Condensate quantity: | 1,7 l/hod |
| Two-point control option: | no |
| Pump output adjustment option: | Yes |
| Option to convert to LPG: | Yes |
| Option to operate without a thermostat: | Yes |
| Option to connect a wireless thermostat: | Yes |
| Option to connect solar: | no |
| Storage tank connection option: | no |
| Extended warranty option: | yes |
| Boiler output adjustment option: | yes |
| Gas supply pressure: | 20 mbar/ 0,002 MPa, 37 mbar/ 0,0037 MPa |
| Voltage/frequency: | 230V/50Hz |
| Adjustable DHW temperature range: | 45 - 65 °C |
| Adjustable heating water temperature range: | 10 - 80 °C |
| Standard efficiency rate at 40/30°C: | max. 108,4 % |
| Recommended heating filter: | Total filter 3/4" |
| Recommended controller: | Vaillant multiMATIC 700 |
| Recommended solar set: | HEWALEX |
| Fuel: | natural gas / propane |
| Fuse: | 2 A |
| Flue design: | TURBO |
| Power output curve: | modulated |
| Power input: | 178 W |
| Electrical voltage connection: | 230V |
| Concentric flue connection: | yes |
| Separate flue connection: | yes |
| DHW connection port: | 1/2" |
| Water connection port: | 3/4" |
| Propane G31 - gas flow at maximum output in DHW mode: | 1,98 kg/h |
| Propane G31 - gas flow at maximum output in heating mode: | 1,44 kg/h |
| Propane G31 - gas flow at minimum output: | 0,40 kg/h |
| Dimensions: | 720 x 440 x 338 mm |
| Lower boiler output: | 5,7 kW |
| Boiler commissioning: | by a VAILLANT service technician |
| Specific DHW flow rate: | 15 l/min |
| Boiler intended use: | with the option to connect a storage tank |
| Weighted NOx value: | 22,0 ppm / 39,9 mg/kWh |
| Permanent pilot flame: | no |
| Suitable for underfloor heating: | yes |
| Output when heating DHW: | 24 kW |
| Output at temperature drop 50/30°C: | 5,7 - 26,5 kW |
| Output at temperature drop 80/60°C: | 5,2 – 25,0 kW |
| DHW output: | 30 kW |
| Built-in water filter: | no |
| Natural gas G20 - gas flow at maximum output in DHW mode: | 2,70 m3/h |
| Natural gas G20 - gas flow at maximum output in heating mode: | 1,96 m3/h |
| Natural gas G20 - gas flow at minimum output: | 0,54 m3/h |
| Product replaced by new one: | https://www.atria.sk/vaillant-vu-25cs-1-5-ecotec-plus-ionidetect-len-na-vykurovanie/ |
| The item has been sold out… | |
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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.
