uniSTOR VIH RW 200
Code: 0020214407Related products
Product detailed description
Vaillant uniSTOR VIH RW 200 is a stationary indirect hot water storage tank with a 200-liter class volume (actual nominal content 193 l), specially designed for combination with air/water heat pumps of the Vaillant aroTHERM VWL 55-115 series. The tank prepares hot water in the household separately from the heating circuit - thanks to a smooth-tube heat exchanger with a large heat transfer surface, it is optimized precisely for the lower heating water temperatures typical of heat pump operation, and despite this, it achieves sufficient hot water comfort for a typical household.
Why an indirect storage tank for a heat pump
The heat pump heats the heating (and at the same time also the domestic) water to lower temperatures than is typical for gas boilers - this is energy efficient, as the efficiency of the heat pump decreases with increasing required output temperature. In order for the tank to be able to effectively transfer heat to the domestic water even at a lower temperature difference, it needs a heat exchanger with a significantly larger heat transfer surface than those of standard boiler tanks. The uniSTOR VIH RW 200 has exactly such a smooth-tube heat exchanger with an area of 1.81 m², which ensures rapid and efficient heat transfer from the heating (primary) circuit of the heat pump to the domestic (secondary) water in the tank, even at typically lower output temperatures of the heat pump.
Technical parameters
- Nominal tank volume: 193 l
- Volume of heating (primary) side: 11.8 l
- Dimensions (height/width/depth): 1 340 / 600 / 600 mm
- Turning dimension: 1 440 mm
- Empty tank weight: 103 kg
- Operating weight (filled with water): 296 kg
- Heat exchanger area: 1.81 m²
- Single hot water withdrawal capacity: 274 l
- Maximum domestic water temperature: 95 °C
- Maximum heating circuit temperature: 110 °C
- Maximum operating pressure (both sides): 10 bar
- Heating water connection (supply/return): R 1"
- Cold/hot water connection: R 1"
- Circulation connection: R 3/4"
- Daily standby loss: 1.37 kWh/24 h
- Energy class: B (on the scale from A+ to F)
Construction and materials
The tank body is made of steel with an internal vitrified (enamelled) surface that protects against corrosion and ensures the hygienic quality of stored domestic water. As an additional anti-corrosion protection, a magnesium protective anode is used, which is part of the tank and is checked and replaced if necessary during regular service. The outer shell consists of high-quality thermal insulation that minimizes the tank's standby heat losses (1.37 kWh/24 h) even when hot water is not being drawn.
Installation
uniSTOR VIH RW 200 is a stationary (floor-standing) tank with a footprint of approximately 600 × 600 mm and a height of 1 340 mm - when designing the technical room, it is therefore necessary to also consider the turning dimension of 1 440 mm, which determines the minimum space required for the tank's placement during installation (e.g., when transporting through doors or during installation). The tank is connected to the Vaillant aroTHERM VWL 55-115 heat pump via the heating circuit (connections R 1") and to the domestic hot water distribution in the house (connections R 1" for cold/hot water, R 3/4" for possible circulation).
Installation, connection, and commissioning must be carried out exclusively by a qualified installation company authorized for the installation of heating technology and heat pumps, in accordance with the Vaillant installation and service manual. Part of the commissioning is also the setting of the heat pump to an optimal operating mode in combination with the tank (e.g., disinfection/anti-legionella cycle, heating schedule according to the electricity tariff and so on).
Compatible accessories
- Vaillant aroTHERM VWL 55-115 (air/water) heat pump - the main heat source for this tank
- Vaillant VPS R 100/1 M or VPS R 200/1 B buffer tank - recommended for stabilizing the operation of the heating circuit during hot water preparation
- Control accessories and tank temperature sensors recommended by the manufacturer for a specific combination with a heat pump
Newer generation - uniSTOR plus
Vaillant also offers a newer generation of tanks with the designation uniSTOR plus VIH RW, which brings more compact dimensions, lower operating weight, and improved energy class for hot water preparation. When choosing between the two variants, we recommend considering the availability of spare parts, the dimensions of the technical room, and the current offer - both models are fully functional and intended for use with Vaillant heat pumps.
Common questions
Is the tank suitable for a larger household?
Thanks to a single withdrawal capacity of 274 l and a volume of 193 l, the tank is suitable for a typical family household. Precise dimensioning is recommended to be discussed with a designer according to the number of people and habits of hot water withdrawal (e.g., bathtub vs. shower, simultaneous withdrawal in multiple bathrooms, etc.).
Why does the tank for a heat pump have a larger heat exchanger than a classic tank for a boiler?
Because the heat pump operates with lower output temperatures of the heating water than a gas boiler. A larger heat transfer surface (1.81 m²) compensates for the lower temperature difference and ensures sufficiently rapid heating of domestic water even at this lower temperature difference.
How often should the magnesium anode be checked?
Checking and, if necessary, replacing the protective anode is part of the regular annual service of the tank - it is carried out by an authorized service/installation company during the service inspection of the entire system.
Can the tank be used with a heat source other than a heat pump?
The tank is optimized for lower temperatures typical of heat pumps, but thanks to the large heat exchanger surface, it works reliably in combination with a gas condensing boiler or solar systems, provided it corresponds to the designed hydraulic scheme.
Hydraulic connection with hot water tank and buffer
In a typical configuration of a family house with the aroTHERM VWL 55-115 heat pump, a separate buffer (accumulation) tank of the VPS R series is often installed alongside the hot water tank uniSTOR VIH RW 200, which serves exclusively for the heating circuit. Dividing the tasks between two separate tanks - one for hot domestic water (uniSTOR VIH RW 200) and the other for heating water accumulation (VPS R 100/1 M or VPS R 200/1 B) - is a common and recommended solution, as it allows independent optimization of the operation of both circuits: the hot water tank is heated preferentially and quickly to the desired temperature, while the buffer tank stabilizes the operation of the heat pump during the heating season.
Switching between hot water heating and heating in such a configuration is ensured by the heat pump regulation using a switching (three-way) valve - the system automatically prioritizes the heating of the hot water tank according to the set priority and then returns to heating via the buffer tank.
Prevention of legionella growth
Part of the proper operation of any hot domestic water tank, including the uniSTOR VIH RW 200, is also a regular thermal disinfection (anti-legionella) cycle, in which the water in the tank is periodically heated to a higher temperature (usually above 60 °C) in order to eliminate any possible occurrence of legionella bacteria in the hot water distribution system. This function can be programmed directly in the Vaillant heat pump regulation - we recommend setting and frequency of the cycle to be discussed with the installation company in accordance with current hygiene regulations and manufacturer recommendations, as the maximum temperature of domestic water in this tank is 95 °C.
Comparison with larger models of the uniSTOR VIH RW series
Alongside the 200-liter class model, Vaillant also offers larger volume variants in the uniSTOR VIH RW series (for example, the 300-liter class), intended for larger households or buildings with higher simultaneous hot water withdrawal in multiple bathrooms. The construction principle of the large-area smooth-tube heat exchanger remains the same for all sizes, only the tank volume, dimensions, and weight differ. When selecting the tank size, we recommend considering the number of people in the household, the number of hot water withdrawal points, and usage habits (for example, frequent bathtub filling significantly increases the requirements for single withdrawal capacity).
Kotol na tuhé palivá
Kotol na tuhé palivá je ideálny pre domáce vykurovanie. Vyrobený z odolných materiálov a vybavený pokročilou technológiou, zabezpečuje efektívne a ekonomické vykurovanie.
- Maximálny výkon: 30 kW
- Typ paliva: Drevo, uhlie
- Dimenzia: 1200 x 800 x 1000 mm
- Garancia: 5 rokov
Additional parameters
| Category: | Heat Pump Accessories |
|---|---|
| Warranty: | 2 years |
| Weight: | 150 kg |
| Tank capacity: | 200 l |
| Heating water volume: | 11.8 l |
| Operating pressure: | 10 bar |
| Single output: | 274 l |
| Dimensions (H×W×D): | 1340×600×625 mm |
| Weight: | 103 kg |
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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.
