02 | 2018

RENEWABLES DHW HEAT PUMPS

Energy you can recycle

› Intelligent technology which utilises free energy from waste heat or the outdoor air to generate hot water for the entire household

STIEBEL ELTRON is full of energy

As a family company driven by innovation, throughout product development

and manufacture we maintain a clear focus on environmentally responsible,

efficient and convenient building services for your home. Because we're

full of energy and ready to shape the future!

Since 1924 we have been developing highly efficient products and maintain a clear focus on electricity as our primary energy source. Electricity which nowadays is increasingly obtained from renewables.

We rely on over 3100 employees around the world and their expertise at every stage of development – from the initial design right through to the manufacture of the final product. The result – efficient and innovative solutions for domestic hot water, heat, ventilation and cooling. With our extensive product range, we always have the right option to prepare your home for the demands of the future – today.

At our head office in Holzminden, Germany, we have also established a clear focus on green technology – with the Energy Campus, our flagship project for sustainable construction which makes careful use of resources. This training and communication centre brings together high quality architecture and communication technology. And as a Plus Energy building, it generates more energy than it consumes. This is in keeping with our brand promise "Full of energy" and creates a space where the spirit of STIEBEL ELTRON can be experienced both in theory and practice.

The future belongs to

environmentally responsible and

efficient building services.

Electricity – the energy source of the future

Renewable energies will become the norm for the future of energy supply as

more and more people recognise the benefits of green and self-generated

power from renewable sources.

The goal of the energy transition is independence from fossil fuelsFossil fuels are in decline on the electricity market – too harmful to the climate and ever more scarce. Nowadays, alternative energies using the sun, wind and water are being used to generate green power.

So it is only logical to act in good time to convert the largest energy consumer in your home – the heating system – to these futureproof forms of energy. As nearly 80 % of energy consumed in the home is used for heating and hot water, this makes perfect sense. So there is plenty of scope for implementing the energy transition in your own home.

DHW heat pumps 02 | 03

“ If you don’t need something, it’s a good idea to

exchange it for something else rather than just

throw it away. If you’re smart about it, you can even

exchange heat, such as surplus heat in the boiler

room, to heat cold water. Giving you virtually free

hot water.”

ENERGIE-EFFIZIENZ A+

DHW HEAT PUMPS INDOOR INSTALLATION OUTDOOR INSTALLATION

Page 06 Page 08 Page 09

PREMIUM PLUS PREMIUM

Model WWK 221 electronic

WWK 301 electronic

WWK 301 electronic SOL

WWK 220 electronic

WWK 300 electronic

WWK 300 electronic SOL

WWK 222 (H)

WWK 302 (H)

Energy efficiency (load profile) A+ (L) A+ (XL) A+ (XL) A+ (L) A+ (XL) A+ (XL) A (XL) A (XL)

Cylinder capacity 220 302 291 220 302 291 220 302

Min./max. application limit –8 °C / 35 °C 6 °C / 42 °C –5 °C / 42 °C

Max. temperature during heat pump-only operation

65 °C

65 °C

65 °C

65 °C

65 °C

65 °C

61 °C

61 °C

Max. mixed water volume* 330 l 465 l 440 l 330 l 465 l 440 l 330 l 460 l

Connection of second heat generator (e.g. boiler)

n

n

Photovoltaic compatibility- via switching contact1)

- via energy management system2)n

n

n

n

n

n

n

n

n

n

n

n

n

n

n

n

Digital control with LCD n n n n n n

Air duct operation possible n n n

Recirculation/outdoor air mode n | – n | – n | – n | n n | n n | n n | n n | n

Get easily accessible and affordable heat from the basement

High grade DHW heat pumps from STIEBEL ELTRON utilise free environmental

energy for DHW heating and thereby provide an efficient, environmentally

responsible solution for year-round generation of hot water using renewable

energy.

Where DHW heating from renewable sources is concerned, DHW heat pumps offer a quick and convenient solution. Basements in particular are often heated passively and unintentionally, whether by a boiler or by electrical appliances that give off a lot of heat. Rather than allowing it to go to waste, DHW heat pumps reclaim this energy.

Up to 70 % of the energy required for DHW heating can be taken from recirculation air. An entire detached or two-family house can be supplied with domestic hot water by feeding the yielded heat into the integral cylinder.

EXCELLENT ENERGY EFFICIENCYOur DHW heat pumps achieve the highest possible energy efficiency class: A+.

* Once at 40 °C 1) Suitable inverter required 2) Sunny Home Manager – for appliances manufactured in or after 05/2016 Energy efficiency class in accordance with EU Regulation no. 812/2013.

DHW heat pumps 04 | 05

WWK 221/301 electronic (SOL)

PREMIUM

Model WWK 221 electronic WWK 301 electronic WWK 301 electronic SOL 230949 230950 233584DHW heating energy efficiency class (load profile). indoor air A+ (L) A+ (XL) A+ (XL)

Energy efficiency class for DHW heating (load profile).

outdoor air A+ (L) A+ (XL) A+ (XL)

Rated capacity l 220 302 291

Maximum DHW temperature with heat pump °C 65 65 65

Max. mixed water volume 40°C l 330 465 440

Heat source min./max. application limits °C -8/+35 -8/+42 -8/+42

Nominal DHW temperature (EN 16147) °C 55 55 55

Nominal load profile (EN16147) L XL XL

Maximum available nominal DHW volume at 40 °C

(EN 16147 / A20) l 285 405 381

COP (EN 16147 / A20) 3.44 3.67 3.67

Sound power level. indoor. with 4 m air duct (EN 12102) dB(A) 52 52 52

Average indoor sound pressure level at

1 m distance. free field with 4 m air duct

dB(A) 37 37 37

Height x diameter mm 1545 x 690 1913 x 690 1913 x 690

The WWK 221/301 electronic series combines all the benefits of the WWK 200/300 electronic series, but also features an air duct for the intake of outdoor air or waste heat from an adjacent room.

Ready for whatever space is availableThe air intake and discharge ducts can be mounted horizontally and/or vertically (the accessories for vertical mounting are available as an option). This allows maximum flexibility when it comes to installation and layout in the installation room.

HIGHLY FLEXIBLE

Futureproof investment The equipment includes a maintenance-free impressed current anode, making regular anode tests unnecessary and saving on costs. An integral contact input is also included as standard to allow for combination with a photovoltaic system*, for example, to increase on-site consumption.

Benefits for your home

› High degree of flexibility regarding siting and installation

› Achieves the highest possible energy efficiency: A+

› Hygienic DHW temperatures up to 65 °C possible in efficient heat pump mode alone

› SmartGrid Ready

*Selected inverter required. Energy efficiency class in accordance with EU Regulation no. 812/2013.

DHW heat pumps 06 | 07

WWK 220/300 electronic (SOL)

PLUS

Model WWK 220 electronic

WWK 300 electronic

WWK 300 electronic SOL

231208 231210 233583DHW heating energy efficiency class

(load profile), indoor air A+ (L) A+ (XL) A+ (XL)

Rated capacity l 220 302 291

Maximum DHW temperature with

heat pump °C 65 65 65

Max. mixed water volume 40°C l 330 465 440

Heat source min./max. application limits °C +6/+42 +6/+42 +6/+42

Nominal DHW temperature (EN 16147) °C 55 55 55

Nominal load profile (EN16147) L XL XL

Maximum available nominal DHW volume

at 40 °C (EN 16147 / A20) l 278 395 371

COP (EN 16147 / A20) 3.55 3.51 3.51

Sound power level (EN 12102) dB(A) 60 60 60

Average sound pressure level at

1 m distance, free field dB(A) 45 45 45

Height x diameter mm 1545 x 690 1913 x 690 1913 x 690

Information at the push of a buttonThe high level of operating convenience offered by the control unit with LCD provides the finishing touch. Information such as the currently available amount of mixed water at +40 °C can be called up instantly.

Our WWK heat pumps offer a quick and convenient solution for DHW heating from renewable sources – independent of the central heating system. They are available in two cylinder sizes and come in an attractive design. The heat pumps, with optimally insulated cylinder, achieve excellent output values.

Futureproof investment The built-in contact input, included as standard, enables the integration of external signal transmitters, for example a photovoltaic system to utilise solar power generated on site* or, where possible, a low tariff signal to use electricity for heating at a discounted rate.

ELEGANT AND ELECTRONIC

Benefits for your home

› Achieves the highest possible energy efficiency: A+

› Hygienic DHW temperatures up to 65 °C possible in efficient heat pump mode alone

› SmartGrid Ready

› Highly reliable and cost saving due to the maintenance-free impressed current anode

WWK 300 electronic

* Selected inverter required. Energy efficiency class in accordance with EU Regulation no. 812/2013.

WWK 222/302 (H)

PREMIUM

Model WWK 222

WWK 222 H

WWK 302

WWK 302 H

231209 233209 231211 232905DHW heating energy efficiency class

(load profile), indoor air A (XL) A (XL) A (XL) A (XL)

Rated capacity l 220 220 302 302

Maximum DHW temperature with heat

pump °C 65 65 65 65

Max. mixed water volume 40°C l 335 335 475 475

Heat source min./max. application limits °C -5/+42 -5/+42 -5/+42 -5/+42

Nominal DHW temperature (EN 16147) °C 61 61 61 61

Nominal load profile (EN16147) XL XL XL XL

Sound power level (EN 12102) dB(A) 60 60 60 60

Average sound pressure level at

1 m distance, free field dB(A) 45 45 45 45

Height x diameter mm 1545 x 690 1545 x 690 1913 x 690 1913 x 690

The WWK 222/302 (H) is a compact air source heat pump designed specifically for outdoor installation for supplying DHW to several draw-off points. Naturally, it can also be used for indoor installation in recirculation air mode. Compact assembly offering quick and easy installation. No settings need to be made, the set DHW value is already preset.

FIRST CLASS DHW CONVENIENCE FROM RIGHT OUTSIDE

Long service lifeThe enamelled metal casing and high quality materials ensure a long service life and safe operation in outdoor installations.

WWK 302 (H)Benefits for your home

› Suitable for outdoor installation at ambient temperatures down to –5 °C

› Features exceptional DHW convenience (draw-off profile XL to EN 16147) combined with an very high energy efficiency class of A (XL load profile)

› Highly reliable and cost saving due to the maintenance-free impressed current anode

Futureproof investmentThe high quality equipment level includes a maintenance-free impressed current anode. The built-in contact input enables the integration of external signal transmitters*, for example a photovoltaic system, to utilise solar power generated on site.

*Selected inverter required.

DHW heat pumps 08 | 09

We speak one language the world over: German Engineering

We are represented in many key markets throughout the world with our

products and solutions. This includes three international production

facilities, 24 subsidiaries and agencies in over 120 countries. More than

40 per cent of turnover is now achieved internationally thanks to the high

vertical range of manufacture of our products, the well-engineered quality

“made in Germany” and in-depth knowledge of local markets.

SUCCESS ON FIVE CONTINENTS

STIEBEL ELTRON products are available worldwide. We are represented on the international stage by our own subsidiaries as well as numerous trade partners. With their own sales organisations and service facilities they successfully serve a diverse range of markets.

Ayutthaya

TianjinPoprad

Eschwege

Holzminden

Manufacturing facilities

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Have we sparked your interest? For further information, see www.stiebel-eltron.com or consult your local trade partner.

Legal notice | Although we have tried to make this brochure as accurate as possible, we are not liable for any inaccuracies in its content. Information concerning equipment levels and specifications are subject to modification. The equipment features described in this brochure are non-binding regarding the specification of the final product. Due to our policy of ongoing improvement, some features may have subsequently been changed or even removed. Please consult your local dealer for information about the very latest equipment features. The images in this brochure are for reference only. The illustrations also contain installation components, accessories and special equipment that do not form part of the standard delivery. Reprinting of all or part of this brochure only with the publisher’s express permission.

STIEBEL ELTRON International GmbH | Dr.-Stiebel-Strasse 33 | 37603 Holzminden | Germany Tel. +49 5531 7020 | Fax +49 5531 702479 | Email info@stiebel-eltron.com | www.stiebel-eltron.com