Heat pump flexoTHERM exclusive VWF 87/4 Modul VWZ NC 11 for passive cooling Controller sensoCOMFORT 720 Internet gateway VR 940f
Code: 0010020696Related products
Product detailed description
Vaillant flexoTHERM exclusive VWF 87/4 heat pump with passive cooling module VWZ NC 11
Vaillant flexoTHERM exclusive VWF 87/4 is a premium compact ground/water heat pump (expandable to water/water) from the fourth generation of the flexoTHERM exclusive series. In the power class of approximately 8.8 kW at point B0/W35, it covers heating and hot water preparation for a medium-sized family house, with the entire technology hidden in a single elegant indoor cabinet with a white lacquered casing — no technology is visible from the outside. The offered set also includes the passive cooling module VWZ NC 11, the touch controller sensoCOMFORT 720 (VRC 720), and the internet gateway VR 940f for control via a mobile app, making it a complete system ready for heating, cooling, and remote management.
Technical specifications
- Nominal heating output at B0/W35: 8.82 kW, COP approximately 4.6
- Electric power consumption at B0/W35: approx. 1.9 kW
- Refrigerant: R410A, closed refrigeration cycle, Sound Safe System technology for quiet operation (sound power level approx. 42 dB(A))
- Heating energy efficiency class: A++
- Maximum output water temperature: 65 °C even without electric boosting, suitable for radiators and underfloor heating
- Integrated multi-stage electric booster up to 9 kW for days with extreme frost or primary source failure
- Option to connect TUV tanks with a volume of 300 to 2000 liters according to household needs
- Weight of the set (indoor unit + VWZ NC 11 module): approx. 172 kg
How passive cooling works with the VWZ NC 11 module
The passive cooling module VWZ NC 11 uses the low, stable temperature of the ground or groundwater in summer months to provide pleasant interior cooling without the need to start the heat pump compressor. Cold brine from ground boreholes or a ground collector is introduced into the heating system via a plate heat exchanger, so the electricity consumption corresponds practically only to the operation of circulation pumps — the actual cooling efficiency (EER) is therefore significantly higher than with conventional air conditioning. The VWZ NC 11 module is designed for the power range of 5 to 11 kW, precisely matching the model VWF 87/4. Passive cooling works best in combination with floor or wall heating, or with cooling convectors, and is fully controlled via the sensoCOMFORT regulation, which automatically switches between heating, hot water heating, and cooling and protects against condensation on pipes and floors by monitoring the dew point.
sensoCOMFORT VRC 720 controller
sensoCOMFORT 720 is a central touch controller with a color display that controls up to several heating circuits, hot water preparation, and the passive cooling function in one device. The regulation is equithermal (evaluates the outside temperature and adjusts the power smoothly according to need), which significantly reduces operating costs compared to simple on/off operation. The controller allows setting weekly heating and cooling programs, vacation mode, party mode, and one-time TUV heating function, and thanks to the intuitive menu in Slovak, operation is simple even without assistance from a technician.
Internet gateway VR 940f
The VR 940f module connects the heat pump to the home WiFi network and enables remote control and monitoring via the myVAILLANT (multiMATIC) app from a phone or tablet from anywhere. The user sees current consumption, operation history, can change temperatures and programs remotely, and receives a direct notification on the mobile phone in case of a fault. The gateway also facilitates remote diagnostics for the service technician, reducing the time of any potential service intervention.
Installation and notes
flexoTHERM exclusive VWF 87/4 is installed exclusively inside the building (technical room, boiler room, basement) — only the pipe of the ground collector or borehole leads outside, no outdoor unit is installed, which eliminates the risk of frost and noise restrictions for neighbors. Connection requires a qualified heating technician, inspection of the electrical installation (three-phase connection), and for full use of the cooling function, a properly dimensioned low-temperature heating system. Due to the weight and dimensions of the device, transportation and unloading are handled as oversized/heavy goods (pallet transport, prepayment by transfer).
Compatible accessories
- TUV water heaters 300 - 2000 l (stainless steel and enamelled versions)
- Passive cooling module VWZ NC 11 (part of this set)
- Air collector aroCOLLECT for expansion with air as a heat source
- Additional room units and sensors VR 51/2, multiMATIC sensors
- Cascade module for connecting multiple heat pumps into one system
Common questions
Is a ground borehole necessary or is a ground collector sufficient? Both sources are possible; the choice depends on the size of the plot and the geological survey — a vertical borehole is chosen in case of space shortage, otherwise a ground collector laid in a non-freezing depth.
Can cooling be done via radiators? Passive cooling works most efficiently with surface (floor/wall) heating; for radiators, we recommend consulting a designer due to the risk of condensation.
What is the lifespan of the heat pump? With regular service (recommended annual inspection), the typical lifespan of the compressor and main components is 15 - 20 years.
Is a separate electricity meter necessary? We recommend setting up a low tariff (dual-tariff electricity meter) for the heat pump with your electricity distributor to reduce operating costs.
We deliver the flexoTHERM exclusive VWF 87/4 heat pump with the VWZ NC 11 module including professional advice on selecting the set, designing the TUV tank, and the option to order installation via our contracted partners.
Additional parameters
| Category: | Ground-to-Water Heat Pumps |
|---|---|
| Warranty: | 2 years |
| Weight: | 180 kg |
| Power range: | 5 - 8.82 kW (B0/W35) |
| Nominal power (B0/W35): | 8.82 kW |
| COP (B0/W35): | 4.6 |
| Refrigerant: | R410A |
| Heating energy efficiency class: | A++ |
| Heat source type: | ground/water, water/water (expandable with air) |
| Passive cooling module: | VWZ NC 11 (5 - 11 kW) |
| Controller: | sensoCOMFORT VRC 720 |
| Internet gateway: | VR 940f |
| Maximum heating water temperature: | 65 °C |
| Sound power level: | 42 dB(A) |
| Weight: | 172 kg (unit + module VWZ NC 11) |
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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.
