Vaillant VU 246/5-3 ecoTEC pro + VIH Q75 B
Code: 0010013505Related products
Product detailed description
+ ecoTEC plus IoniDetect - condensing boiler
+ uniSTOR VIH Q 75 B - hot water cylinder
+ hot water cylinder temperature sensor
+ spacer frame under the boiler
VAILLANT VU 246/5-3 ecoTEC pro
- wall-hung condensing boiler
- output: 6,2 - 24,0 kW
- heating and hot water preparation
- designed for underfloor and radiator heating
- space-saving - the boilers feature compact dimensions
- can be installed in attic spaces
- operation independent of, or dependent on, the room volume (combustion air supply)
- Aqua-Power Plus function up to 21% higher output for hot water preparation
- NOx value in flue gas pod 60 mg/m3
- standardised efficiency rating 109 %
- continuous output modulation
- simple backlit display with symbols
- Thermo-Compact module fitted with a stainless steel burner and fan
- automatic diagnostic system (digital display of operating states and analysis of the boiler mode)
- the heating system can be prepared before the boiler itself is installed
- ready for connection of a storage water heater
- the VU boiler already includes an built-in diverter valve
- reduced electricity consumption
- two-stage, energy-efficient circulation pump
- expansion vessel
- automatic air vent
- condensate drain (siphon)
- integral stainless-steel condensing heat exchanger
- built-in control for an indirectly heated cylinder
- electronic setting of reduced heating output
- built-in composite three-way diverter valve
Parameters
- Energy class: A
- Rated heat output range P at 50/30°C: 6,9 - 25,5 kW
- Rated heat output range P at 80/60°C: 6,2 - 24,0 kW
- Max. heat output for hot water heating P at 80/60°C: 28,0 kW
- Unit dimensions (H x W x D): 720 x 440 x 338 mm
- indirectly heated floor-standing hot water cylinder
- volume: 68 l
- energy class B
- designed for smaller households - 68 l volume
- designed for wall-hung boilers ecoTEC plus and pro
- installed next to or below the boiler
- the same colour finish and design as the wall-hung boilers
- high-quality enamelled inner surface
- built-in magnesium anode
- Rated volume: 68 l
- Heat exchanger surface area: 0,85 m2
- Water volume in the heat exchanger: 3,5 l
- Maximum output: 30 kW
- Continuous DHW output: 738 l/h
- DHW heating time from 10 to 60°C: 12 min
- Maximum DHW temperature: 85 °C
- Maximum heating water temperature: 110 °C
- Maximum operating pressure: 10 bar
- Heat losses: 0,9 kWh/24 hod
- Heat exchanger connection: G 3/4"
- DHW connection: G 3/4"
- Circulation connection: G 3/4"
- Height: 720 mm
- Width: 440 mm
- Depth: 440 mm
- Weight: 55 kg
Frequently asked questions
- How exactly do I choose the output of a VAILLANT condensing boiler? The starting point is the calculated heat loss of the building being heated (most reliably taken from the project documentation or an energy certificate). If you don't have a project, you can roughly estimate 60-100 W per m² of floor area for a normally insulated house built after 2000, or 100-150 W/m² for an older, uninsulated house - the exact figure varies depending on the number of floors, ceiling height, the number and quality of windows, and the building's orientation. An oversized boiler switches on and off more often (so-called cycling), which shortens its lifespan and reduces efficiency; an undersized boiler, on the other hand, cannot heat the house sufficiently on frosty days.
- Why is a condensing boiler more economical than a conventional one? A condensing boiler also makes use of the heat hidden in the water vapour produced when gas is burned - in a conventional boiler this vapour escapes unused through the flue, while in a condensing boiler it is cooled below the so-called dew point, the vapour condenses, and the released heat is returned to the heating circuit. Thanks to this, condensing boilers achieve an efficiency of roughly 105-110% relative to the calorific value of the gas, compared to the usual 85-92% for conventional boilers.
- What type of flue gas exhaust does this boiler need? Most modern condensing boilers are so-called turbo boilers (with a sealed combustion chamber) and require a concentric (coaxial) or separate flue gas exhaust and combustion air intake routed through an external wall or the roof - so a functional chimney is not required. You will find the exact type and maximum length of the flue (based on a diameter of 60/100 or 80/125 mm) in the technical documentation for the specific model, or you can consult our customer service.
- What does the ErP energy class shown for the boiler mean? This is the mandatory efficiency label for heating appliances under the EU ErP (Ecodesign) directive, similar to the energy labels on refrigerators. Condensing boilers commonly achieve class A, or even higher in combination with room controls (e.g. A+ when using weather-compensated control and a room thermostat).
- Can I install and connect this boiler myself? No. Connecting to the natural gas supply, the electrical network and the flue gas exhaust must, by law, be carried out exclusively by a person with the relevant qualification (most often an authorised service technician of the given brand or a gas appliance inspection technician). After installation, the boiler must be commissioned by the manufacturer's authorised service, which is usually also a condition for the warranty to be valid.
- What about servicing and the warranty? Most manufacturers require a regular annual service inspection by an authorised service provider so that the warranty remains valid even after its standard expiry (an extended warranty subject to regular servicing is common especially for the Vaillant, Protherm and Viessmann brands). You will find the exact warranty terms in the warranty certificate supplied with the boiler.
- What is included in the delivery of this specific product? The exact contents of the package (the boiler itself, possibly a hot water tank, room controls and other accessories in the case of a set) are stated in the product name and in its technical parameters above on this page.
Additional parameters
| Category: | Vaillant ecoTec plus, pro |
|---|---|
| Warranty: | 2 years |
| Weight: | 60 kg |
| 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 (od verzie 2014) |
| ? 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: | 25,5 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 calormatic 450 |
| 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: | 6,9 kW |
| Boiler commissioning: | by a VAILLANT service technician |
| Specific DHW flow rate: | 15 l/min |
| Boiler intended use: | with an integrated storage tank |
| Weighted NOx value: | 22,0 ppm / 39,9 mg/kWh |
| Permanent pilot flame: | no |
| DHW tank size: | 70 |
| Suitable for underfloor heating: | yes |
| Output when heating DHW: | 28 kW |
| Output at temperature drop 50/30°C: | 6,9 - 25,5 kW |
| Output at temperature drop 80/60°C: | 6,2 - 24,0 kW |
| DHW output: | 28 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 |
| Boiler heating output: | high output above 16 kW |
| Manufacturer: | Vaillant |
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(954 kB) Brochure ecoTEC pro
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(824 kB) Operating Instructions ecoTEC pro
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(254 kB) Connection Dimensions ecoTEC pro
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(895 kB) Design Documentation ecoTEC pro
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no-calormatic (1 MB)
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(192 kB) Brochure (1.8 MB)
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Declaration of Conformity (306.1 kB)
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(4,83 MB) Operating Instructions (659.6 kB)
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(866 kB) Brochure storage tank (857.6 kB)
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(714 kB) Declaration of Conformity (196.5 kB)
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O spoločnosti
Skupina Vaillant Group je synonymom vykurovania a prípravy teplej vody, pričom hlavný dôraz kladie na kvalitu, spoľahlivosť a užívateľský komfort. Jej produkty tepelnej techniky sú zastúpené vo viac ako 100 krajinách sveta. Združuje značky Vaillant, Saunier Duval, AWB, Bulex, DemirDöküm, Glow worm, Hermann Saunier Duval a Protherm. Každá z týchto značiek má s výrobou vykurovacích zariadení bohaté skúsenosti, pretože väčšina z nich je v danom segmente viac ako 80 rokov. So svojím 140 rokov dlhým pôsobením na trhu však patrí hlavne značka Vaillant k tým najväčším a najvýznamnejším. Dlhodobo je lídrom na trhu a priekopníkom vo vývoji a inováciách v oblasti vykurovacích technológií v Európe. Skupina Vaillant Group má vybudovanú rozsiahlu sieť obchodných zastúpení a tisíce spokojných zákazníkov po celom svete.
Do bohatého portfólia Vaillant Group patria moderné technológie vykurovania, ktoré sú energeticky úsporné, efektívne a prispievajú k ochrane životného prostredia. Vďaka širokému spektru produktov a modelov si tu každý zákazník nájde presne to, čo potrebuje. Sortiment zahŕňa závesné a stacionárne kotly, zásobníky teplej vody či elektrické spotrebiče. Na trhu závesných kotlov je spoločnosť s 26 percentným podielom dokonca číslom jedna v Európe. Vaillant Group sa nešpecializuje len na vývoj a výrobu kotlov, do jej produktového portfólia patria aj technológie využívajúce obnoviteľné zdroje energie, ako sú solárne systémy či najmodernejšie tepelné čerpadlá a klimatizácie. Užívateľom ponúka tiež rekuperačné alebo kogeneračné jednotky či zeolitové tepelné čerpadlá.
Vaillant Group myslí každý deň dopredu a ponúka individuálne riešenia pre každú potrebu a každý druh energie. Jej úspech je založený tiež na výskume a vývoji, ktorý vždy prebieha v súlade so želaniami zákazníkov. Oddelenie výskumu a vývoja spoločnosti patrí k najväčším a predovšetkým k najkreativnejším oddeleniam v tomto segmente. Tím vývojárov neustále pracuje na nových zariadeniach a technologických systémoch, ktoré sa čoraz jednoduchšie obsluhujú a ktoré už dnes spĺňajú požiadavky zajtrajška. Či ide o energetické riešenia budúcnosti, alebo o najlepší spôsob ako využiť fosílne palivá, spoločnosť Vaillant Group sa snaží predvídať nové trendy a byť vždy o krok dopredu pred ostatnými. Dôkazom toho je aj každoročné prihlásenie až 100 nových patentov. V oblasti výroby kladie firma najväčší dôraz na dosiahnutie najvyššej kvality kotlov, ktorá predstavuje dokonalosť do najmenšieho detailu.
Vaillant Group má svoje zastúpenie vo väčšine krajín sveta. Výnimkou nie je ani Slovensko, kde sídli spoločnosť Vaillant Group Slovakia, s. r. o. zastupujúca značky Vaillant a Protherm. Vykurovacie zariadenia Vaillant Group sa vyrábajú v siedmich výrobných závodoch, pričom až dva z nich sa nachádzajú na území našej krajiny. Tieto fabriky zamestnávajú spolu viac ako 1 300 ľudí. Výrobný závod Protherm Production so sídlom v Skalici sa špecializuje na výrobu elektrokotlov a stacionárnych kotlov pre všetky značky patriace do skupiny Vaillant Group. Môže sa pochváliť aj vlastným vývojovým centrom, ktoré patrí k najmodernejším v Európe. Druhým výrobným závodom na Slovensku je Vaillant Industrial Slovakia v Trenčianskych Stankovciach, ktorý pre celú skupinu vyrába moduly pre závesné kotly.
Udržateľnosť
Ako do budúcnosti orientovaný, rodinný podnik, prijímame osobitnú zodpovednosť za životné prostredie, pre našich zamestnancov a pre spoločnosť. Sme presvedčení, že hospodársky úspech, udržateľný a ziskový rast sú neoddeliteľne späté so záväzkom sociálnych a ekologických štandardov.
Aby bolo možné splniť tento záväzok, sme zviazaní plniť naše aktivity trvalo udržateľného rozvoja v strategickom S.E.E.D.S. Program (Udržateľnosť v prostredí, zamestnancoch, rozvoj & produkty a spoločnosť). Definícia tejto oblastí záujmu je založená na komplexnom pochopení udržateľnosti, v ktorej berieme do úvahy aj kľúčové problémy našich hlavných činností.