INSIGHTS Information from the Hoval Group | 01 | 2019

Special solutions for the hotel industry Low operating costs, minimal effort Solution for with maximum supply reliability logistics centre High energy efficiency – achieved with Hoval

Tower Bridge New heating system for London landmark

District heating network for community centre Hoval supplies a complete system package including control technology Introduction.

2 Insights 01 | 2019 Dear Reader,

2500 years ago, Philosopher Heraclitus determined that will be launching over the course of this year is a practical “change is the only constant in life”. This still rings true today example of this. HovalRemote offers our customers in our modern and fast-paced age. Digitisation and technical maximum operational reliability, which is only possible innovations have resulted in rapid change in many areas of through the combination of our reliable customer service, our lives. Add to this the fact that new requirements and our knowledge of networked control technology and our IT changes are constantly being combined in the research expertise. This represents genuine added value for end landscape. Complexity is constantly escalating, and this customers. Initial conversations with customers about creates a certain level of uncertainty for some people. HovalRemote have been overwhelmingly positive.

The anonymity of the digital world also increases this feeling Our reliability is definitely the reason why we continue to of uncertainty for a lot of people. This justifiably raises the gain the trust of our customers for challenging projects. question of whether personal contacts still serve a purpose. We showcase our strengths particularly effectively when it Especially for a traditional company like Hoval, where direct comes to hotels, which is why this is a focus in this particular contact plays a particularly significant role. Expertise and magazine edition. Our reliability is also a crucial factor in personal relationships were and still are very important to other large-scale projects. For example, the heating system us. They result in dependability for our customers. renovation for Tower Bridge in London or the planning and installation of an integral ventilation and heating system for Does increasing digitisation threaten these values at a large logistics centre in Croatia by combining a large part Hoval? No, not for us! Digitisation allows us to focus of the Hoval product range to form a clever system. even more on areas where our expertise and personal touch are most valued and relieves us of other tasks. Change is the only constant in life, but Hoval’s values are still going strong. This is why Hoval has been actively following this path for some time now. It is a path towards a future that will happen with or without us. A future where all market players – including us – will need to free themselves to some extent from routines and practices that have been used for decades. Hoval sees great advantages for our end customers, our partners and for ourselves in the new options that are available to us. However, digitisation at Hoval is constantly implemented in line with our values. We never forget what has made us so strong over the past 74 years. We are and will remain a reliable partner.

Reliability is not in conflict with the digital world and is still Peter Gerner, Management Board Hoval Group a top priority for us. Our new HovalRemote service that we Co-CEO

Insights 01 | 2019 3 Contents.

Investors and planners have high demands – Hoval can accommodate them all. 6. A hotel requires lots of heating and enough hot water for any time of the day or night. Supply reliability, convenience and hygiene are of the utmost importance to every hotelier and investor. They also want to keep operating costs in check. All of this is possible – if their planner gets the right advice.

“A Warm Welcome” for Tower Bridge. 18.It is one of the most famous tourist attractions in the world. It has been lifting its two bascules to welcome through passing ships for 150 years. Hoval is now offering visitors a warm welcome inside the bridge too – with a new heating system Hoval has proved itself in thousands of hotels. 12.Integral system solutions are providing a reliable service in countless hotels and guest houses. They protect the environment and keep operating costs down. Three examples – three unique solutions.

4 Insights 01 | 2019 Insights 01 | 2019

Hoval takes a systematic approach 28.to heating and ventilation in major logistics centres. A logistics company in Croatia is making The quietest air/water heat pump for domestic use. energy efficiency one of its strategic goals – 26.The Schibli family in the Swiss municipality of Baldingen has and it is set to achieve it. put its trust in independent, energy-efficient heating by selecting the Hoval UltraSource® heat pump. It is currently the quietest heat pump available.

ServeCool: The modern way to cool data centres. 34.Innovative: Hoval engineers have combined maximum UltraSource®: How much output would you like? reliability with ultimate energy efficiency to cool a data 37.The quiet UltraSource® heat pump is now also an attractive option centre in Czechia. for apartment buildings. Hoval is launching models in additional output classes.

Insights 01 | 2019 5 In focus: Special solutions for the hotel industry. Investors and planners have needs – Hoval can accommodate them all

If a planner has a hotel owner as a customer, they can expect very specific requirements. The hotelier wants everything at once – low operating costs and minimal effort with maximum supply reliability and a high level of convenience. All of this is possible – if the planner gets the right advice and is open to new, digital opportunities.

A lot of hoteliers can’t believe their eyes when they see software. With the help of the Hoval SystemCalculator, their electricity bill. Depending on the model and age of the they can develop and cost hypothetical and feasible system system, costs for heating rooms and water are not cheap solutions based on the most important key data and either. requirements, which the investor can then use as a valuable basis when making decisions. They may be almost more concerned that there will not be enough hot water for their guests at any time of the day or “In this overall analysis, it is not just about the initial night. And this water needs to be flawless. Hygiene is investment, but also the issue of cost-effectiveness over of the utmost importance – legionella would destroy the years of operation,” explains Stefan Müller, who leads the reputation of a hotel. To prevent this, the hotelier implements product management department at Hoval Heiztechnik. excessive maintenance measures, which take up time and “The answer to the question of how many years it takes staff resources and incur a great deal of expense. for a new heating system to pay off thanks to high energy efficiency is key to every investor.” And this investor is more Can they forget their worries – and even create a more likely to invest if all these facts and figures are accurate and comfortable and convenient environment for their guests readily available. and themselves? Yes, they can.

The first step towards supply reliability 150.000 125.000 The first thing a hotelier needs is a planner who can fully grasp this challenging situation. This planner should be well 100.000 versed in the latest technical developments and the digital 75.000 possibilities offered by the Internet of Things (IoT). 50.000

This is a lower and therefore easier hurdle to overcome 25.000 when the planner then chooses the right partner – a partner 0 who has a comprehensive view of the interests of both the planner and the investor. -25.000 -50.000 Personal advice -75.000 from experienced experts 2 4 6 8 10 3,8 Years Hoval can offer specific advice with regard to hotels. The System profit Cashflow Trend experts from Hoval take energy and ecological considera- tions into account, while also considering the economic Hoval SystemCalculator: requirements that the investor in particular will expect to be met. Profit and loss account (P&L). Graphical representation of the total To achieve this, they rely on their experience and exclusive costs. Comparison to the existing system.

6 Insights 01 | 2019 High efficiency Hoval offers both. The strong focus on integral system thanks to digitisation solutions, which offer more than just the combined benefits of the individual components, harnesses all economic and The planner, who answers to the hotel owner, is also aware ecological advantages. of their need for high efficiency and maximum supply reliability. Stefan Müller says: “The hotelier wants to heat their establishment, but they also want the heating and hot water supply to take care of itself as much as possible.”

Planners and installers can be confident that they can meet this justifiable demand – Hoval heat generators are now equipped with the TopTronic® E digital control system as standard and without exception. Thanks to its online connection, the system knows first thing in the morning what the weather will be like in the afternoon, and it can The hotelier wants to heat their proactively adjust heating operation in order to save energy. If the precise weather forecast predicts sun for a winter establishment, but they also want the afternoon, the heating system does not have to run at full power in the morning. This results in noticeably lower heating and hot water supply to take care resource consumption, meaning lower operating costs and higher efficiency. However, the convenience of a reliable of itself as much as possible. supply is not compromised. Stefan Müller Head of Product Management Even higher reliability Heating Technology with maintenance contracts

There is no such thing as absolute reliability. But maximum reliability can be ensured for hoteliers and investors through a maintenance contract. They have nothing to worry about when it comes to heating their rooms or providing hot water, leaving them free to concentrate fully on their guests.

In Switzerland, Germany and Austria, this maintenance contract is known as Hoval TopSafe®. Depending on the country and scope of services, there is a choice between Make an appointment now Basic, Safe and TopSafe®. Hoteliers who are naturally mindful of the safety of their guests usually choose the Are you a planner or installer with customers in the hotel widest possible scope of services. Annual maintenance not industry? Get in touch with your Hoval consultant now to only covers a functional check and system optimisation, it find out the clear benefits they can offer you: can also include costs for all materials. With Hoval TopSafe®, it is also possible to extend the warranty period and ensure ■■Low operating costs that any faults are repaired around the clock. ■■High supply reliability ■■High convenience for hotel guests and for yourself Whether the planner and installer require support or the ■■Flawless hygiene hotelier requires maximum reliability and convenience,

Insights 01 | 2019 7 In focus: Special solutions for the hotel industry.

Modular system solutions that they support and complement each other, achieving the highest possible energy efficiency when working Do heat and electricity need to be produced for the hotel together in a network. at the same time in a combined heat and power unit? Will renewable energy play a role in the system solution or even The modularity of the system solution means that it can generate the majority of the power? Depending on the be upgraded or expanded if needed with relatively little expectations of the hotelier, the planner can work with Hoval effort required for installation or planning. The modular to combine the appropriate modules to create a complete design also makes it possible to use alternative energy system. The individual components for generating, storing sources in a system that originally relied exclusively on and distributing heating and hot water are coordinated so fossil fuels.

Hoval TopTronic® control system All Hoval products feature a uniform control system, which enables them to be quickly combined into an individual and efficient energy solution. Simple, uniform operation and connection to the internet or management system enableHoval remoteTopTronic ® HovalHoval TopT TopTronicronic® ® 22°C 22°C 22°C access. Regelungssystem / RegelungssystemControlRegelungssystem system / /Control Control system HovalApp HovalAppHovalApp HEAT GENERATION HEAT DISTRIBUTIONHovalConnect DRINKINGHovalConnectHovalConnect WATER SYSTEM HovalSupervisor HovalSupervisorHovalSupervisor 1 2 3 4

BASIC REQUIREMENT REQUIREMENT PEAKS

PowerBlocPowerBloc EG EG PowerBlocEnerValEnerV EG alEnerV al EnerVal UltraGasUltraGas® ® UltraGas® UltraGas® TransShare 3K/2TrKansShareTransShareTransShare 3K/2K 3K/2K 3K EnerVal EnerVEnerValTrEnerVansThermalal TransThermTrTransThermansTherm aqua F (20)(20) (20)(1500) (1500) (1500) (125) (125) (125) (800) (800)(800)aqua F aquaaqua F F Heat and electricity in the The latest heat generator Ready-to-connect Instant water heater smallest space Gas combustion boiler with distribution systems with storage tank Combined heat and power units infinitely variable output Standard distributor or High hygiene standards as provide heat and electricity adjustment and maximum configurable distributor systems drinking water is not stored – economically and reliably. efficiency. high protection against legionella.

Alternative heat generation °C °C Alternative drinking water systems 22 22

1 1 4 4

® ® ® BioLyt EnerVal UltraGas ThermaliaTr®ansShare dual, 3K EnerVal EnerVal UltraGasTransTherm TransShare 3K EnerVal TransTherm BioLyt(100-160) EnerVal Thermaliadual Hdual H EnerVal aqua F aqua F TransTherm TransTherm aqua L CombiValCombiVal C C EnerValTransTherm aquaTransTherm LS CombiVal C System solution with pellet Hybrid system with renewable aqua L aqua LS boiler. energy. Tank charging systems in Tank charging systems in combination with charging heat combination with two charging exchanger. heat exchangers.

TransTherm EnerVTralansTherm TransTherm CombiVal C EnerVal TransTherm CombiVal C aqua L aqua L aqua LS aqua LS

Thermalia® dual, dual H Link to Remote Service System: Read more: hoval.com/remote-service-system ■■Hoval in top hotels worldwide: Page 12–15 ■■Combined heat and power unit and condensing boiler for hotels: Page 36

8 Insights 01 | 2019 In the market. Positive reaction to website

Hoval is taking digitisation seriously. There is no energy revolution without digitisation. Connecting heating and air-conditioning technology digitally to form a system increases efficiency and protects the environment.

The new Hoval website is a strong symbol of the digitisation What do customers think about this simplified process? process – and this is just the start. The internet platform and What is the next step on the journey towards the digital digital control system will increasingly merge together. Hoval world?

The new website is live in Austria, Germany and Two questions – three answers: Switzerland, and other markets are to follow. Customers in these three countries can now find all work documentation “Our customers have responded incredibly quickly and including price lists and technical data in one place. And in positively. 400 people have already registered in the first the e-business area, installers can order products and week. The thing they like the most is the clear presentation components around the clock with their applicable purchase of brochures, technical data, documents, etc. This helps conditions. them to save time. Lots of our customers are already ‘more digital’ than we think. With hoval.ch, we have created a self-service channel, and now it needs to become embedded A summary of the advantages of the e-shop: in the customer process. Both we and our customers are still strongly inclined towards the “external sales employees/ ■■User-friendly website thanks to intelligent search regional centres” format. But the self-service channel is function. more convenient for lots of transactions, for everyone.” ■■Clear display of technical data and prices. ■■The e-shop is available around the clock. Daniel Weltin, Quotes can be created and tracked 24/7. Managing Director of Hoval Switzerland hoval.ch ■■BIM data available for download. ■■Delivery and monitoring of the order.

“Openness to digital transformation is very high among German specialist traders. A major reason for this is the shortage of skilled workers in the building trade. Our digital developments are helping customers to optimise their processes. This allows them to go some way in compensating for the effects of staff shortages. We are now available for customers 24/7.”

Wolfgang Allgäuer, Managing Director of Hoval Germany hoval.de

“We are still at an early stage of developing our e-shop, but we can see enormous potential. The most important advantage for our customers at the moment is the additional possibilities it offers. They can see all documents at any time, can download and import them into their work software, and can create quotes and orders around the clock. The work process will become noticeably easier with the online system configurator – the next step on our digital journey. Processing special promotions and integrating customer loyalty programmes in the myHoval account are other milestones for us on this journey.”

Christian Hofer, Managing Director of Hoval Austria hoval.at

Insights 01 | 2019 9 In the market. Smart transformation at Hoval

Tradition and digitisation: Conflict or symbiosis? Hoval sees great advantages and opportunities in digitisation for end customers, planners and installers. But this will require everyone to learn new things and change their way of thinking.

Company founder Gustav Ospelt was a Digitisation and Digital products visionary and innovator. The stove that the value of a family and persuasion he patented more than 70 years ago doubled as a central heating system. A Digitisation is another major challenge Hoval has invested significant resources few years later, he announced that he for companies today. Small and medium- into developing a universal control and was moving the heating system down sized family companies, such as Hoval regulation system for all its products, to the basement. He developed the with its approximately 2000 employees, which are connected to Hoval’s own first steel boiler with an integrated hot are happy to set themselves apart from ERP system (Enterprise Resource water tank. The product was met with large corporations or purely digital com- Planning system) via a gateway and huge demand during the economic panies through the personal relationships IoT platform (Internet of Things plat- boom of the late 1950s and the 1960s. they form with their customers and form). This digital link will make work partners. Who knows anyone by name easier for everyone. However, only a Today, Hoval’s portfolio is much more at Amazon – except Jeff Bezos? Hoval, relatively small proportion of newly diversified. Although 70 years may not on the other hand, sees itself as one installed heating systems are net- seem like a particularly long time, in big family. This family atmosphere is worked in this way. It seems possible the canton of Zurich in Switzerland, also carried over to relationships with that even installers are often shying for example, only one percent of long-standing customers and partners. away from this development. So, companies have been around for it looks like Hoval still has some more than 70 years. Many companies Hoval sees digitisation as a positive convincing to do, but personal do not manage to move with the times. change: “It is our chance, our future – relationships will make this easier. “Our company has had to drastically especially for us as a traditional but change course a few times too,” says dynamic company that sets itself apart Digital processes Peter Gerner, co-CEO of the Hoval through our personal relationships,” and upgrade backlog Group. says Peter Gerner. Digitisation also reduces the distance between the manufacturer and the 100 end customer. New companies are constantly entering the online market Only 1 out of 100 companies and approaching end customers 75 directly to sell them new heating is older than 70 systems. To Hoval’s detriment, it has noticed that for a long time now, 50 very few end customers are actively Ventilation Heat Housing replacing their old systems, even technology pumps ventilation Digitisation though many of them are in desperate 25

Cumulative proportion in % need of an upgrade.

Hoval can only tackle this massive 0 upgrade backlog together with 0 10 20 30 40 50 60 70 80 90 100 Company age planners and installers. Digitisation can help with this. Digitisation will

10 Insights 01 | 2019 The analogue world of pens and pencils is a thing of the past. also have a general impact on some Digital business models of the tasks at the interface between Digitisation defined partners and Hoval. But the long- It is quite possible that one day Hoval’s by Hoval in a nutshell established company will show customers will no longer have heating consideration for existing relationships systems, and instead they will buy heat Digitisation is the future – throughout this process. output in kW/h. especially for Hoval as a traditional but dynamic company. Digitisation Services will also undergo a funda- In any case, it is Hoval’s clear objective and tradition are symbiotic at mental change. There are numerous to develop mutually beneficial business Hoval – thanks to personal benefits for the end customer when models. According to Peter Gerner, relationships with customers and their heating system is connected this is an exceptional challenge. “But partners. online via a gateway. With the IoT we are taking people along for the ride interface to Hoval’s own ERP system, during our smart transformation. We The IoT platform that is connected Hoval can offer added value to offer personal support with our expertise to the Hoval ERP system via a gate- everyone – the installers, the property and consulting skills.” Tradition and way is currently being optimised management companies and the end digitisation clearly have a symbiotic for all products. This digital customers. relationship at Hoval. network means that heating systems can be continuously optimised, and data analysis can improve products and reduce costs.

When Hoval systems are online, we can significantly Together with planners and installers, digitisation will also help increase service levels, provide support faster, to reduce the upgrade backlog, and this will result in new business optimise systems and reduce costs. Peter Gerner models. Co-CEO

Peter Gerner Co-CEO

Insights 01 | 2019 11 In operation: Hotels. Hoval has proved itself in thousands of hotels The list is endless. Hoval system solutions are providing a reliable service in countless hotels and guest houses. They protect the environment and keep operating costs down. These three examples showcase three solutions that are all as unique as the hotels themselves. What they do have in common is that they are all extremely energy-efficient, reliable and hygienic.

12 Insights 01 | 2019 UNITED KINGDOM: Hoval helps top-class hotel business

5-star Pennyhill Park Hotel: relies on UltraGas®.

The ivy-covered Pennyhill Park Hotel is History of success It may just be a coincidence, but since like something from a dream – a luxury 2015 – the year when the Hoval resort just a stone’s throw from Windsor Ivy grows up the stone façade of the UltraGas® condensing boiler was Castle. The hotel operators rely on hotel, and this façade tells a story of installed in the hotel – the Pennyhill Hoval, just like many other 5-star hotels success. The property in the west of Park Hotel has won several awards. across the land. London, which is directly connected to It was named “Residential Spa of the Windsor Castle via London Road, can Year” and was one of the top three Systems that have been deemed good be traced back to the accomplished “Large Hotels”. The Group that the hotel enough for the Queen of England are and skilful civil engineer James is a part of – “Exclusive Hotels and now available to luxury hotels in London Hodges, who built it in 1849 and who Venues” – was also named “AA Eco and other parts of the United Kingdom also lived there. An orangery was Hotel Group of the Year”. at a low cost. After all, Hoval is the added in 1880, which was renovated appointed purveyor of the British royal again in 1903 and 1935. household, and the advanced techno- logy can also be found in many top-class Pennyhill Park, with grounds spanning hotels. 123 acres or around 50 hectares, has been an exclusive hotel since 1972. Sustainable heat

The renowned 5-star Pennyhill Park Hotel, which is steeped in history, dis- covered Hoval a few years ago. A Hoval UltraGas® (350) condensing boiler has Over the past 30 years, the majority been providing heat for the rooms and water since 2015. The hotel with its 123 of 4 and 5* hotels in London have used luxurious suites and hotel rooms, the gourmet restaurant, the brasserie with bar Hoval for their heating and hot and the spa area with its eight swimming pools are all reliant on the boiler’s output water needs. Ian Dagley of 350 kW. And eco-friendly energy Hoval UK General Manager efficiency and outstanding reliability are essential to maintain the first-class repu- tation of the hotel. The tried-and-tested and technologically advanced UltraGas® can provide all this for the long term.

Insights 01 | 2019 13 In operation: Hotels.

Classy and traditional GERMANY: The latest system solution “The Maximilian is one of the most beautiful inns in the for listed establishment Tegernsee valley. It’s classy, but not pretentious, instead it’s very traditional,” says Alois Gartenleitner. He has taken on the lease together with his wife Martina.

His description of the inn – “classy, but not pretentious, instead it’s very traditional” – could also apply to the system solution that the builder selected to heat the rooms and the water. Two Hoval UltraGas® condensing boilers, each with an output of 100 kW and operated in a cascade formation, are at the centre of the system. This system also incorporates a Hoval CombiVal drinking water tank with a capacity of 800 litres. The CombiVal preheats 300 litres for the inn and the doctor’s offices, which are located on the first floor of the building. The top floor of the magnificently restored Gasthof Herzog Maximilian: UltraGas® is the core of the system establishment has its own CombiVal, which holds 200 litres. solution. Efficient and environmentally friendly Everything that goes into making a cosy place to eat and drink needs to happen behind the scenes. The renovated The entire system is controlled via Hoval TopTronic®: The inn Gasthof Herzog Maximilian in Gmund am Tegernsee individual components, which are already very energy efficient now has a system solution from Hoval working in the and recover heat, are even more powerful when they are background. combined in a system. This is then made even more efficient by the clever TopTronic® control system. After 30 years of sitting empty, the inn has finally rediscovered its purpose. The impressive listed building in The meticulously developed technology, which always and the Bavarian Gmund now once again houses a restaurant reliably provides as much heat as needed, is a real credit to on the ground floor. The restaurant can seat 150 guests Hoval. However, it was also instrumental for the Gasthof comfortably and there is a hall that can accommodate Herzog Maximilian project that the architects, planners and another 75 people. Duchess Maria Anna of Bavaria and the heating engineers had known each other for years and that Tegernsee brewery bought the property after years of they work together with Hoval. This cooperation boosts uncertain developments and the building was completely confidence in the skills of the other partners. And what did renovated over two years, complying with the strictest the couple Gartenleitner who run the inn get from all this? conservation regulations. An optimally designed system.

The entire system is controlled via Hoval TopTronic®.

14 Insights 01 | 2019 Renewable energy was definitely something we wanted to consider. The pellet system solution from Hoval stood

out for us right away. Erich Bergmüller Hotelier

AUSTRIA: Biomass for hotels

The environmentally friendly and high- performance Hoval BioLyt wood pellet boilers are perfect for new constructions and renovating hotels and larger systems.

Hotel Edelweiss: BioLyt wood pellet boilers go easy on the environment and your wallet.

In the Alps, wood is crying out to be is saving several thousand euros in the existing boiler to cover peak loads used as a source of energy. Wood is operating costs a year. And let’s not enable environmentally friendly and

CO2-neutral and can be easily acquired forget the benefits for the environment – cost-effective heating with an output of from the surrounding area. The Hotel the system saves approximately 130 up to 450 kW. At the Hotel Edelweiss

Edelweiss in the province of Salzburg has tonnes of CO2 every year. in Wagrain, a hot water processing been setting a good example for years. system with a powerful Hoval fresh The sophisticated combustion process water station 2-FWM-E (700) has been When Erich Bergmüller extended his of the BioLyt and the firing system con- integrated. This means that there is hotel in Wagrain a few years ago, the trolled by a microprocessor optimise always enough hot water available and heating system also needed to be combustion and keep pollutants low. The makes the water extremely hygienic. upgraded. “Renewable energy was patented thermolytic heating surfaces There is no longer any risk of legionella definitely something we wanted to are perfect for transferring heat. The forming. consider. The pellet system solution level of efficiency always remains high. from Hoval stood out for us right away.” Reliable operation thanks Since then, two Hoval BioLyt wood Powerful renovator to TopSafe® and TopTronic® pellet boilers have been producing a total heat output of 300 kW. As engineer This powerful solution is the ideal With the TopSafe® maintenance Wilhelm Hutz who installed the system choice for refurbishment projects. The agreement, hotelier Erich Bergmüller puts it: “The compact design of the compact design means that the BioLyt has opted for the practical complete powerful twin boiler system was and is can fit into practically any boiler room protection package with a twelve-year the best solution for the Hotel Edelweiss.” when replacing the existing boiler. The full warranty. The TopTronic® control boiler body, cladding and control system technology monitors operation – even Economical and environmentally are delivered separately and assembled remotely. If needed, it is even possible friendly on site – installation generally goes to connect to Hoval customer support without a hitch. directly online. This service is available If you compare the new wood pellet throughout Austria around the clock, heating system with a hypothetical oil Cascade solutions with two or three 365 days a year. heating system, the Bergmüller family wood pellet boilers or the integration of

Insights 01 | 2019 15 In operation: Liechtenstein. District heating: everything from a single source, all with one control system

A complete system package with an energy centre and substations from a single source. An entire district heating network that can be controlled with a single system: absolutely achievable. Proof of this can be found in Eschen in the Principality of Liechtenstein. And the single source that provides everything including the control technology? Hoval.

As of late, the beating heart of Eschen The hot water is stored in a Hoval Environmentally compatible has been hiding in the basement of the heating tank with a capacity of 9000 and reliable town’s community centre – the heating litres, which is exclusively available in system of a new, emerging district Switzerland and Liechtenstein. The Liechtenstein Gasversorgung (LGV) heating network. The heating system gas supply authority initiated and generates heat in two Hoval BioLyt (160) Hoval TransTherm transfer stations operates the district heating network. wood pellet boilers – this produces an transfer the heat produced in the heating “During the design and planning stages, output of around 320 kW. Depending on system from the pipeline to the individual we were guided by two requirements – the heating requirements, just one or customers. This includes a TransTherm environmental compatibility and supply both of the boilers can be in operation pro with an output of 280 kW for the reliability,” says Michael Baumgärtner. on a rotating basis. A Hoval UltraGas® local council, the nearby church and He is responsible for the heat supply/ (900 D) twin boiler covers peak loads the community hall, a TransTherm pro renewable energies department at LGV. in the winter. The bivalent system there- with an output of 100 kW for the super- It was also a foregone conclusion that fore generates the majority of the market on the other side of the road, the existing “primary school heating annual heat required without producing and a TransTherm giro with an output system” would be connected to the new any CO2 emissions. This will be even of 60 kW for a medical centre. “community centre heating system”. more environmentally friendly once the “We will construct the line needed for wood chip boiler from the existing this in 2019,” says Michael Baumgärtner. “primary school heating system” is Once this has been completed, the connected to the new heating system number of heat consumers will increase: in a further planned stage. “We expect to have 30 customers in the long term, including planned new construction projects.”

16 Insights 01 | 2019 The heating system generates heat in The HovalSupervisor control system two BioLyt (160) wood pellet boilers. TransTherm transfer stations convey the visualises all components in the system A gas boiler covers peak loads. heat produced in the heating system. package.

One control system for the entire up quickly and used successfully.” network Marc Good also knows that he can rely on support from Hoval at any time. Hoval control technology acts as the brain for the central heating system – The dozens of measuring points also the heart of the district heating net- enable the entire system to be thoroughly work – and its present and future monitored and analysed. This doesn’t Follow this link ramifications. just permit optimisation at a single point, to see the 360° animation: but provides a constant overview of hoval.com/heating-system-eschen All Hoval network components are the entire system. The HovalSupervisor equipped with the Hoval TopTronic® control system ultimately makes the control software. This communicates entire district heating network even with the HovalSupervisor control system more efficient, environmentally friendly without needing to specifically program and economical than it already is. the individual components further. The HovalSupervisor control system connects itself almost automatically and visualises the system on a PC screen. The technicians of the Liechtenstein Gasversorgung (LGV), The simple user interface which manages the district heating network in Eschen, can monitor it means that the system-related directly on the screen and coordinate the operation of the heating system functions can be picked up quickly and substations, resulting in continuous optimisations. and used successfully. Marc Good Project Manager, LGV Project manager Marc Good is aware of the many options offered by the HovalSupervisor control system: “The simple user interface means that the system-related functions can be picked

Reducing complexity This point makes the difference

“Purchasing all the components for the new district A programmable logic controller (PLC) from Hoval can heating network for this project from Hoval and bundling be used to premix the water in the pipelines, which mini- these into a complete system has considerable advanta- mises heat loss in the lines. By measuring negative ges. There are fewer project participants in both project pressure points in the district heating network, the PLC planning and construction, coordination becomes can operate the district heating pumps at the required easier, and the number of interfaces is manageable – minimum using speed control. This saves electrical during operation too.” energy and ensures that every customer is always sup- plied with enough heat. The control system visualises Michael Baumgärtner, Member of the Executive Board the data points of the centre control system. of the Liechtenstein Gasversorgung (LGV)

Insights 01 | 2019 17 In operation: United Kingdom.

18 Insights 01 | 2019 „A Warm Welcome” at Tower Bridge It is one of the most famous tourist attractions in the world. It has been lifting its two bascules to welcome through passing ships for 150 years. Hoval is now offering visitors a warm welcome inside the bridge too – with a new heating system.

Insights 01 | 2019 19 In operation: United Kingdom.

Neo-Gothic style meets Hoval experience.

Traffic problems and other hurdles Partnership and the construction company T Brown Group also planned to renovate the outdated heating system. When Joseph Bazalgette submitted his plan for Tower Bridge in the 1870s, he had no idea that the approval As the appointed purveyor to the Queen, Hoval was able to alone would take years to come through. The city was stand out from the other competitors. Hoval was therefore experiencing tremendous traffic problems and this new granted the honour of providing visitors to Tower Bridge a construction was supposed to resolve them. A new roadway warm welcome with visionary technology. across the Thames was required without impeding shipping traffic. The goosebumps you get after walking along the glass floor of the footbridge – 42 metres above the murky Thames – Finally, in 1894, the bridge was officially opened and the quickly disappear when you step inside the temperate whole world marvelled at the feat of engineering. Tower exhibition and event spaces. Bridge could raise its lower bascules in just two minutes to allow ships to pass through. The first challenge of the heating system modernisation project was that regulations required the use of a condensing The recent refurbishment of an exhibition space demonstrated boiler. However, the listed building status prevented the once again how important meticulous forward planning is. necessary technical measures from being performed inside As part of the project, the engineers from Brinson Staniland the bridge pillars of the neo-Gothic building.

20 After lengthy discussions, the officials of the City of 15 m above the ground may even have impressed the great London finally granted special permission for a customised, Victorian master architect Bazalgette. He would certainly non-condensing boiler system comprising four highly have been amused by the fact that the majority of deliveries efficient low-NOx Hoval SR-plus 225 boilers. And the ErP had to be made at night. This was to avoid causing traffic Directive was not the only reason for the decision to provide problems on Tower Bridge and in the centre of London. fully modulating burners separately in both boiler houses.

“Accessing the boiler houses down narrow passageways, up steep staircases and ladders and around tight corners was the next hurdle,” recalls John Pearson, Project Design Manager at T Brown. “This is why Hoval supplied the boiler completely knocked down (CKD). All individual components were assembled and welded on site and the hydraulics were then inspected by Hoval engineers. Then the housing, burners and control systems could be assembled.”

The fact that all this was carried out on a platform that had been specially extended for the boilers and which hung

21 In operation: Germany.

Hoval in the harbour of modernisation and innovation The southern German city of Ludwigsburg is quite a distance from the ocean, but it has its own harbour – the urban harbour. Entrepreneur Max Maier has transformed an industrial area of the city into a harbour of innovation, where people live, work and exchange ideas. The heat and energy supply is also in step with the times.

22 Insights 01 | 2019 This man’s work is never done. To him, modernisation condensing twin boilers (2000 D) for the CHP plant. They means constant and relentless development. Max Maier, provide a total maximum output of 4 MW. who took over the Eisfink refrigerator production plant at the start of the 1980s and saved it from going under, has also The officials from the Ludwigsburg municipal utilities renovated the 200,000 m2 industrial area in the Weststadt company, who have made a name for themselves due to district of Ludwigsburg, which used to be home to Eisfink. their environmental awareness, are well aware of the high He developed the buildings and the site to transform this energy efficiency and low pollutant emissions of the Hoval area into the urban harbour. UltraGas®. And there were plenty of other convincing reasons that helped them make their choice. In terms of Hub of creativity hydraulics, the two twin boilers were relatively easy to integrate into the complete solution. In addition to this, the The “urban harbour”, which is still undergoing continuous boilers have a minimal footprint considering their exceptional regeneration, is often described using elaborate metaphors: output. The urban harbour is a unique mooring for people and companies, a hub for creativity and collaboration, a driving Stefan Rau, who supervised the project on behalf of Hoval force behind the future of work and living. Germany, says: “Expertise and experience are always essential when creating something new and innovative that In the urban harbour, established companies, such as can operate reliably.” Bosch, Kärcher and Porsche, work side by side with start-ups. Industrial, commercial and service enterprises have also made the harbour their home. The space also comprises restaurants and a range of event rooms of all sizes.

Heat, cooling and power from a CHP plant

The most recent modernisation in the urban harbour is just a few months old. The Stadtwerke Ludwigsburg-Kornwestheim municipal utilities company (SWLB) launched the new “EnergieHafenWest” energy centre for the harbour and the Werkzentrum Weststadt district in spring 2018. The combined heat and power plant (CHP) produces heat and electricity at the same time. According to Max Meier: “It is significantly more efficient than a conventional power plant.”

The tried-and-tested heat supplier – UltraGas®

Every energy service provider and every investor knows that it takes sophisticated and reliable technology to operate an ® energy centre seamlessly and cost-effectively, while also The two UltraGas (2000 D) condensing boilers generate a total taking environmental impact into account. The municipal maximum output of 4 MW. utilities company chose to use two Hoval UltraGas® The Zollinger Hall with its unique and listed wooden ceiling construction is one of the highlights on the plot.

Expertise and experience are always essential when creating something new and innovative that can operate

reliably. Stefan Rau Project Manager Hoval Germany

Insights 01 | 2019 23 In operation: Czech Republic. Medical innovation – and Hoval delivers big time It takes something physically large to be able to create something of medical significance, even on a microscale. The Biocev scientific centre in Vestec, on the south-east outskirts of Prague, is conducting research into molecules and developing new treatment methods. Heat for the centre is provided by high-power Hoval boilers.

The Biocev research centre is developing new biomedical treatment methods.

This triumph has caused something of Biocev, including methods for early gas cleanly. It immediately carries the a stir – a team of scientists at Biocev diagnosis or chemotherapy based on hot combustion gases out of the high- have discovered a treatment method to biologically active substances. temperature zone. This reduces the destroy the tumour cells for one of the flame temperature and even fewer most aggressive forms of breast cancer. 3x Max-3 pollutants are emitted as a low-NOx burner has already kept the emissions 600 researchers The heat required at Biocev for heating at a low level. Calculations have shown rooms and service water is provided by that a high-power Hoval Max-3 boiler

The centre, which focuses on bio- three high-power Hoval Max-3 boilers emits up to 18 tonnes less CO2 per technology and biomedicine, will with an output of 1250 kW each. The year than a comparable product. continue to make a name for itself. It is three-pass boilers produce an efficiency a joint venture of six scientific institutes, of up to 94%. Their patented heating including the Institutes for Molecular surfaces are designed to evenly stimu- Genetics, Microbiology and Experimental late the combustion gases, even in a Medicine. All six are part of the Academy low operating phase. This means that of Sciences of the Czech Republic. The heat is transferred more effectively and idea for the centre emerged in 2006, efficiency increases. In addition, fewer and the European Union supported its aggressive substances are deposited, construction. The costs amounted to the risk of corrosion decreases and the 2.3 billion Czech koruna, equivalent to service life increases. approximately 103 million Swiss francs or 90 million euros. By 2020, around Environmental protection included 400 researchers and 200 Masters and PhD students will be researching and The tried-and-tested three-pass tech- developing new treatment options at nology has been proven to burn oil and

24 Insights 01 | 2019 In operation: Liechtenstein. Efficient solution provides quick heat Christian Graf, manager of Hoval’s garage in Vaduz, swears by the new Hoval TopVent® TV and TopVent® TW recirculation heating units. Both emit heat quickly and save space at the same time.

hydraulic and electrical assembly is very straightforward. This factor impressed Markus Schmid right away. He is responsible for the infrastructure at Hoval headquarters in Vaduz.

Save energy – thanks to the EC motor

For Markus Schmid, the cost of operation is another crucial factor. The EC motor for powering the fans does not require much electricity. Thanks to its higher efficiency, the TopVent ® TV consumes approximately 25% less energy in comparison to other units.

Air curtain for the garage door

Christian Graf no longer feels the chill on a cold winter’s day when he raises the door to move the next car onto the lifting platform. The TopVent® TW recirculation heating unit generates an air curtain. This forms an effective barrier, Christian Graf and Angelo Cimino are delighted that the cold air will meaning the cold air stays outside. now stay outside in the winter. The TopVent ® TW takes up very little space and visually integrates so well into the wall that you hardly notice it. When it comes to assessing Hoval products, no one is more Available in lengths of 1 m, 1.5 m and 2 m, it can be discerning than the Hoval team itself. That is why Christian mounted horizontally or vertically with connection to the Graf now has two TopVent® TV recirculation heating units in power supply and hot water system. The mounting bracket his workshop, where he services cars from the Hoval fleet. is included and enables installation in both directions. A TopVent ® TW also releases an air curtain from above the frequently used garage door as soon as it opens. Christian’s One control system for everything first impression: “Immediately warmer – and I can hardly hear the units.” The EasyTronic control system can be used to switch recirculation heating units, such as the TopVent® TV and A TopVent ® TV-2 recirculation heating unit has recently been the TopVent ® TW, on and off and to control the temperature installed on the wall behind the lifting platform area. With a and fan speed for the air volume. The EasyTronic also heat output of 6.1 kW (50/40°C), it is the smallest of the three energetically synchronises boilers and recirculation heating output variants. The largest, a TopVent® TV-5 with a heat units. It has an output to control an external pump or a output of 21.5 kW (50/40°C), is suspended from the 3.7 m valve. The EasyTronic also has a contact as an input for the high ceiling in the centre of the workshop space next door. recirculation heating units. If, for example, the door of a Both emit heat fully and quickly, and the space underneath warehouse opens, the door contact triggers the air curtain is left completely free. Christian Graf can also easily set the of the TopVent ® TW. Hoval also provides a base, which room temperature and the fan speed for the air volume via allows the control system to be surface-mounted if the the EasyTronic control system. His heaters are immediately device is being retrofitted. adjusted in line with this. The intuitive EasyTronic system combines heating units to No major planning – easy installation form a complete system. Up to ten units of the same type can be controlled via a single control unit. The new TopVent ® TV is the perfect product when you need an effective solution without major planning. The mechanical,

Insights 01 | 2019 25 In operation: Switzerland. The quietest air/water heat pump for domestic use The Schibli family has put its trust in independent, energy-efficient heating – with the quietest system currently available on the market: Hoval UltraSource®.

New situations require new solutions. The Schibli family’s A busy day detached house was formerly connected to an adjacent heating system via the district heating pipeline. Due to a On the day of the installation and commissioning, there was change in the ownership structure, the family decided that a lot of hustle and bustle both inside and outside the family’s they wanted to heat their home independently in the future. house. The installation team worked meticulously and made They opted for a clever combined solution: The UltraSource® quick progress. All those involved in the planning were on B air/water heat pump heats the house, provides hot water, site – customer Rilana Schibli, Hoval coordinator Giuseppe and keeps the home cool in the summer. Campanella, the project manager from the installation company Käufeler AG Fabian Käufeler – even the family’s three Maine The family already recognised Hoval as a reliable provider – Coon cats were on hand to keep an eye on proceedings. not least because of the red cars they often saw out on the roads. After receiving expert advice, they decided to go for an environmentally friendly air/water heat pump from the latest generation. It was particularly important to us that the

system didn’t make any noise. Rilana Schibli Baldingen

Looking good: the UltraSource® in the Schibli family’s garden.

26 Insights 01 | 2019 I can control the system

easily via an app. Rilana Schibli Baldingen

An environmentally compatible system: Family cooperation the air/water heat pump Two technicians worked together to install the outdoor unit – With this new system, the Schibli family is taking one from Hoval and one from Käufeler AG. The installation responsibility for their energy and the environment, without company from Wettingen specialises in sheet metal work forgoing any comfort or convenience. The UltraSource® and sanitation, heating and ventilation systems. The family extracts heat from the ambient air in an eco-friendly business in its fourth generation has already been working manner and brings it into the home. This split device with Hoval products for some time now. Project manager consists of two units – one set up inside and the other Fabian Käufeler calls himself a “Hoval child” because he grew outside. This frees up valuable inside space, which is ideal up surrounded by the products: “Alongside the extremely for a family home. reliable products, we are particularly impressed with the service, the excellent collaboration – and most of all, the Quiet system for a peaceful night’s sleep professional communication with Hoval.”

The engineers from Hoval have devised intelligent solutions for output adjustment, night operation and noise-reducing We are really impressed with the storage and enclosure. All of this guarantees quiet operation and a peaceful night’s sleep. The UltraSource® is so quiet professional communication with that it can even be set up in the home office if there isn’t space in the utility room. At the Schibli family’s home, the Hoval – and the innovative products. indoor unit was set up in the garage together with the hot Fabian Käufeler water boiler. The newly designed outdoor unit from Hoval is Käufeler AG (installer) one of the quietest on the market. Washing hands with heat from Baldingen More space in the bathroom After just a few hours, it was possible to make a seamless A bonus side effect of the new solution was that the old transition from the old connection to the new system. And by boiler could be removed from the bathroom. This made the time the family got home from work or playing that evening, space for the washing machine and tumble dryer. “As a they were able to wash their hands using water that had been family, laundry quickly piles up, so I’m pleased that we’ll warmed by the heat captured from right outside their door. be able to keep these appliances nearby from now on,” explains Rilana Schibli.

A control system that listens to the weather report

It’s easy to control the heat pump system from your sofa on a tablet or smartphone using the TopTronic® app from Hoval. This app compares various key figures and presents them clearly. Rilana Schibli can get an efficiency overview with just one tap of the finger and can perform optimisations if necessary. The current weather infor- mation is taken into account when heat is being generated. This also saves valuable energy. Rilana Schibli being briefed. The boiler and interior unit are set up in the garage.

Insights 01 | 2019 27 In operation: Croatia. Hoval takes a systematic approach to heating and ventilation in major logistics centres

This logistics company is one of the largest in Croatia, sending out more than a million shipments every day. Total weight: more than 20 tonnes. Now it is building a new logistics centre close to the capital Zagreb. High energy efficiency is one of its strategic goals – and Hoval is providing a comprehensive solution to help achieve this.

28 Insights 01 | 2019 The time is right, because existing Construction work The ventilation and heating system solutions are simply no longer sufficient. The company, which enjoys considerable Construction work started in June 2017 The integral ventilation and heating success in the logistics sector, is up- and the first of the two phases is due system for the new logistics centre has grading its business to the very latest to be completed by early 2019. The been designed by Hoval Croatia in technical standards. In doing so, it is work includes the logistics centre itself, collaboration with planners from APZ making the biggest financial investment a high-bay warehouse, the data centre, inženjering. The networking of the in its history by building a new logistics a substation for the power supply and technically advanced components to centre in the town of Velica Gorica, the heating plant. There will also be create a powerful and energy-efficient south of Zagreb. The budget has been more than 500 parking spaces for the complete system looks to the future in set at 345 million kuna, equivalent to company’s vehicle fleet and employees’ the same way as the logistics centre approximately 53 million Swiss francs cars, as well as 16,000 m2 of green itself. or 46 million euros. space. The second phase will focus primarily on the construction of the 14 decentralised RoofVent® ventilation An excellent location main office building. units and 15 TopVent® recirculation units will be controlled with TopTronic® The complex is taking shape on a site The strategy software. The network in the logistics covering a total area of 70,200 m2. Its centre covers six different zones and is location in Velica Gorica has been The new logistics centre is part of a linked to the higher-level building chosen wisely. High-speed roads, rail comprehensive development strategy. management system via the BACnet links and Zagreb Airport – the largest The company has committed itself to protocol. in the country – are located in the improving processes and introducing immediate vicinity. The first-class innovations. It also intends to tap into The heating system is controlled traffic routes are also a bonus for the new markets, and logistics capacities entirely via TopTronic® software. The 1400 people who will be working in the are very much a part of this plan. software obtains weather forecasts logistics centre. Moreover, “digitisation is not the future,” from the internet and coordinates is the message from the company’s operation in line with them. This managing board. “Digitisation is reduces the energy consumption happening today.” significantly, not least because the individual components are already working efficiently and in perfect harmony.

We are making a crucial contribution to enabling the logistics company to meet the objectives set in its energy efficiency

strategy. Goran Budimlija Managing Director Hoval Croatia

Insights 01 | 2019 29 In operation: Österreich.Croatia. 1

Designed specifically for halls with horizontal alignment. The 20 panels 1 high ceilings deliver 60 – 80% of the energy needed to provide hot water as well as 20 – 1 The 14 RoofVent® RC-9 ventilation 50% of the heat for additional heating. units installed on the roof are designed specifically for heating and cooling A TransTherm solar (50) transfer station halls with high ceilings. They are able transfers heat from the primary circuit to recover up to 86% of heat, which for thermal energy to the secondary 1 saves energy while also maximising circuit for heat storage. efficiency. The shells encasing the 2 ventilation units installed on the roof of The major hot water requirement is the logistics centre have to be made covered by TransTherm aqua L (1-30) from non-reflecting material so that transfer stations, which heat water in- they do not distract the pilots taking off stantaneously, and a CombiVal E (1500) and landing at nearby Zagreb Airport. drinking water tank. An energy-efficient The TopVent ® DKV recirculation units end-to-end system are installed underneath the ceiling. They suck in air from the room, heat or “Our components combine to cool it, and then blow it back into the create an energy-efficient and room through the air injector, supplying environmentally friendly system. good-quality air at all times without This means we are fulfilling an creating draughts in occupied areas. important requirement of our customer. They are not only Making full use of all energy technologically equipped for the

® future, but are also taking their The UltraGas (2000 D) twin boiler environmental impact into account. consists of two boilers, each with an We are making a crucial contribution output of 1000 kW. The patented ® to enabling the logistics company aluFer heat exchanger is able to to meet the objectives set in its recover heat even from the very last energy efficiency strategy.” trace of gas. Goran Budimlija, The EnerVal (6000) energy buffer Managing Director Hoval Croatia storage vessel hydraulically integrates all heat generators and even absorbs the heat loss from the ventilation units. Full use is made of all sources of energy.

UltraSol® thermal solar collectors heat the domestic water and also deliver emission-free heat to heat the building. They can be installed in any position. Depiction of the complete system for the The logistics company has chosen Croatian logistics company.

1 14 x RoofVent® RC-9 2 15 x TopVent® DKV 3 1 x UltraGas® (2000 D) 4 20 x UltraSol®

30 Insights 01 | 2019 2 1 2

3 4 5 6 7 8 1 2 2

2 1 1 1 1 2

2 2 2 2 2 2

1 1 2 1 1 2

5 1 x EnerVal (6000) 6 1 x CombiVal E 7 1 x TransTherm solar 8 1 x TransTherm aqua

Insights 01 | 2019 31 In operation: Switzerland. Solar thermal energy in operation in 4 minutes Property owners are extremely in the know these days when it comes to heating water and their home. Hoval customer Urs Kobler closely supervised the commissioning of the UltraSol® thermal solar collectors on his house. Luckily it only took a few minutes – thanks to the SolKit® aqua drinking water storage tank.

Almost twenty years ago now, Urs Kobler on his roof. The south-facing roof was was among the solar pioneers. When perfect for this and he accepted that he his semi-detached house was first built would be somewhat mocked by his in Steinach, not far from the shores of neighbours. Since then, technology Lake Constance in Switzerland, he has advanced immensely. The time wanted to collect solar thermal energy had come to replace the old panels.

SolKit® aqua drinking water tank.

32 Insights 01 | 2019 There is always plenty of hot water for my This is technology of the highest partner, her twenty-year-old daughter standard. It provides energy and myself, and we don’t need to worry efficiency, conserves materials about doing anything else. That is true and protects the environment. convenience! Let’s go back to the new SolKit® aqua drinking water storage tank. It This system incorporates the new seems to save a lot of hassle! ®

® SolKit aqua drinking water storage Urs Kobler: UltraSol has passed the test. tank. You opted for the SolKit® aqua Urs Kobler: You can say that again. LT model. It holds 500 litres and is The technician who came to commis- Mr Kobler, since spring 2018, you designed to work in combination sion the two newly installed UltraSol® have had two UltraSol® solar with a heat pump. But there is still a collectors and to fill up the heat collectors on your roof instead of non-condensing oil-fired boiler in exchanger for the SolKit® aqua drinking the three panels you had previously. the utility room that you share with water storage tank with carrier fluid The summer of 2018 was extremely your neighbour. How does that work? genuinely only took four minutes to do hot. What have been your first so, just like Hoval had predicted. impressions? Urs Kobler: The next step is to replace Needless to say, the previous installation the oil heating system with an air/water was slightly more complex. It’s amazing Urs Kobler: The first thing that heat pump. Then the system will be that a process that used to take half a springs to mind is how it compares to complete and will operate using day to complete is now just a matter of the previous system. The stagnation exclusively renewable energy sources. a few minutes. The man seamlessly temperature used to be so hot that the In fact, two days before this interview, injected the fluid using a special tool kit carrier fluid that transported the sun’s photovoltaic modules were installed on that was provided with the tank and heat often flocculated. These flakes the roof in addition to the two UltraSol® commissioned the system at the same and lumps clogged up the pump and I collectors, meaning we are now time. This system permits – in fact it had to replace it, as well as the fluid, producing CO2-free electricity with a requires air, and air was formerly a several times over the years. view to incorporating the heat pump. no-go in solar circuits.

These problems are now a thing of Of course, we will also control the heat I’m a sceptical person and not easily the past. The specific design of the pump using TopTronic®, and then it will pleased. But now I have a system that UltraSol® means that the maximum even integrate precise weather forecasts will be truly state of the art in combina- temperature is no longer reached. via the internet connection. For example, tion with the heat pump. The low stagnation temperature also if a sunny winter morning is forecast, prevents excess pressure in the our heat pump will not run at full blast system. that morning.

Last summer, air temperatures were very high for days and weeks at a time. This really put the two solar collectors ® through their paces and they passed As well as photovoltaic modules, two thermal UltraSol collectors ensure there is enough hot water. with flying colours.

Control technology has also taken huge strides forward over the past two decades. Has it become more convenient too?

Urs Kobler: Control is now much more than just a simple on/off button. The UltraSol® pump is able to modulate, and the TopTronic® controls the modulating operation. It is connected to the internet, and this online connection means that the Hoval experts in the regional centre in eastern Switzerland are able to provide me with direct remote support, so the TopTronic® now regulates operation according to our individual hot water needs. It’s different on week- days and on the weekend, but the TopTronic® takes care of all of that.

Insights 01 | 2019 33 In operation: Czech Republic.

Innovative and customised: At the CE-Colo data centre in Prague, ServeCool blows the exhaust air from an adiabatic system in an upwards direction.

ServeCool – the flagship solution for innovative data centres

Customised cooling in data centres: This is a task for ServeCool and the Hoval engineers with their wealth of experience. For the Czech T-Mobile subsidiary CE-Colo, this combination brought together maximum reliability and extreme energy efficiency. The result was an impressive, innovative cooling system.

“Accommodating special requests – this is what motivates CE Colo offers its customers highly available colocation us to get to grips with something new that will ultimately space as a “carrier neutral provider”. It can generate 6 MW benefit all our customers,” explains Christian Richter, Data of power up to the final expansion stage, and is ultimately Centre Segment Manager at Hoval. As a pioneer in adiabatic cooled by 64 ServeCool units from Hoval. data centre cooling, Hoval wins over its customers with its expertise, advice and solutions. All of this was needed to create a cooling system for the data centre of the Czech T-Mobile subsidiary. In the new DC7 data centre in Prague,

34 Insights 01 | 2019 Over ninety percent external air cooling system control element – zone control across several cooling units in the room. Even with this special solution, the design ServeCool operates using three cooling methods: The indirect and set-up of the cooling system still facilitate the modular free cooling system uses highly efficient cross-flow plate heat growth of the data centre. exchangers, which Hoval produces itself. They have the high- est level of efficiency in this application on the market. This Rapid commissioning means they are able to ensure cooling 90% of the time. This makes ServeCool the leading cooling system in terms of its After the initial meetings with the customer, the Hoval team free cooling limit. The free cooling system works perfectly at set up a test site with the custom-developed cooling system a temperature difference of just 3 K between the external air and invited the customer to Vaduz. “The test system worked and the supply air. No one else is currently offering free cool- perfectly. It was a true representation of our abilities,” explains ing limits that are this high. At very low external temperatures, Christian Richter. Combining the required system with zone the innovative “condensation prevention system” also elimi- control and direct evaporators was a formidable task. “It’s nates the need for costly re-humidification of the supply air. not a challenge that every provider could have risen to,” adds Christian Richter proudly. The solution from Hoval achieves If the temperature difference between the external air and Tier-3 level (ANSI/TIA-942) with 99.999% availability, while the supply air rises above 3 K, an adiabatic cooling system maintaining maximum energy efficiency. intervenes. The external air is sprayed with water and this cools the circulating air of the data centre as well. When the The Hoval production site in Istebné and the local team in adiabatic system is activated, this covers at least another Prague also made their mark as the first four ServeCool 7% of the cooling time. This means that the expensive units were ready for use in no time at all. mechanical after-cooling system only needs to come into play at very high temperatures. On the one hand, it is clear that The customer was so impressed by the ServeCool solution the energy efficiency of ServeCool far surpasses that of other developed by Hoval that they created texts, symbols and similar systems. On the other hand, the system also has the drawings for the system to explain how it works. Large posters with diagrams showcasing the energy efficiency of the cooling Prague’s weather profile – and Hoval technology – make it possible to system were also put up. In the future, every visitor to the cool the data centre using adiabatic cooling 90% of the time. data centre will see that T-Mobile thoroughly lives up to its promise of “innovative technical solutions”. Hoval is happy to have been able to help them fulfil this promise.

Thumbs up for the Hoval engineers! Lubomír Pinkava Operations Manager CE-Colo lowest water consumption – due to its high free cooling limit, adiabatic cooling is rarely used. The utilisation of rainwater means there is no need for expensive demineralised water. Compared to the space required for conventional mechanical cooling systems, ServeCool is also highly space-efficient.

Conversion of the standard model for CE-Colo By equipping its data centre with 64 ServeCool units, the Czech T-Mobile subsidiary CE-Colo benefits from The customer CE-Colo requires maximum availability of its the following advantages: data – in other words, maximum reliability. It therefore needs ■■The experience, expertise and advice of Hoval with to be possible to switch the system to purely mechanical regard to customised solutions operation in case of emergencies – that is to say, when there ■■Maximum reliability with extreme energy efficiency is no supply of external air. To achieve this, the standard cooling registers with water cooling have been replaced by ■■An unbeatable free cooling limit (external air/supply air direct evaporators. A particularly clever feature is that the difference: 3 K) exhaust air from an adiabatic system is usually blown out ■■A changeover to purely mechanical operation without horizontally through the outer wall, whereas at the T-Mobile external air in case of emergencies data centre, it is blown upwards. This means that the exhaust ■■A system designed for modular growth air cools the condensers of the direct evaporator circuit at ■■Zone control over several units per server room the same time. The customer also requested a special

Insights 01 | 2019 35 In detail: Combined heat and power unit PowerBloc EG (20) CHP for smaller output in combination with a condensing boiler: high efficiency guaranteed A combined heat and power unit (CHP) does not need to be huge. Hotels and clinics, smaller industrial plants and apartment buildings are now using the Hoval PowerBloc EG (20). It modulates its output from 5 to 20 kWel, and becomes even more efficient in combination with an UltraGas® condensing boiler. Energy costs go down.

operated and controlled via the standard touch panel or via a PC, tablet or smartphone.

PowerBloc and UltraGas® on top form

The condensing PowerBloc EG (20) is even more efficient in combination with the UltraGas® condensing boiler. The two work together to achieve an unrivalled top performance: Like the UltraGas®, the PowerBloc EG (20) can be operated at a low return temperature of just 35°C. Their condensation performance is correspondingly high, and they can extract even more heat from the exhaust gas.

Exclusive Hoval standard

The flow of the entire system is controlled hydraulically, meaning that the UltraGas® always operates at low return PowerBloc EG (20): low-noise combined heat and power with a temperatures – and not at higher temperatures from the minimal footprint. buffer tank. At the same time, this fully utilises the buffer energy. Hotels consume electricity in huge quantities. If you add a spa area, the electricity and heating bill becomes almost Good for upgrades insupportable. A combined heat and power unit can change this. A gas motor powers a generator to produce electricity The PowerBloc EG (20) and the UltraGas® with their and the waste heat is used as thermal energy. combined efficiency of 103% get out more than they “put in”. Those who want to benefit from this efficiency, save primary Quiet and compact energy, produce electricity and save money as a result do not need to replace their entire heating system. For example, if The Hoval PowerBloc EG (20) now allows electricity and heat an UltraGas® (500) is already installed, it is possible to to be produced for smaller output ranges. In doing so, it retrofit a PowerBloc EG (20). This option is a major benefit applies the principle of combined heat and power, while when extending a hotel or refurbishing a spa area, for maintaining extremely low noise levels and taking up the example. smallest possible space.

The PowerBloc EG (20) operates with an industrial motor that has been specifically optimised for Hoval and a water- cooled induction generator. All the heat is acquired via a PowerBloc EG (20) heat exchanger, a cast exhaust manifold and a cast condensing exchanger and this provides hot water and ■■Compact design, easy to assemble. room heating up to a temperature of 95°C. The electricity ■■Simple and cost-effective to maintain. produced by the generator is fed directly into the building ■■Long maintenance intervals: 6000 operating hours. for personal energy usage and the surplus electricity is ■■Remote monitoring and remote maintenance. fed into the public network. PowerBloc EG (20) can be

36 Insights 01 | 2019 In detail: Expanding the UltraSource® line UltraSource®: How much output would you like? New models with the usual Hoval quality and unbeatable energy efficiency: Alongside the successful UltraSource® models with an output of 11 or 13 kW, new models with an output of 8 and 17 kW are being added in 2019. This will make UltraSource® suitable for use in apartment buildings as well as for owners of single-family properties.

Until now, UltraSource® B was “only” available with an The UltraSource® B line gets its energy from the air – these output of 11 kW, and Ultrasource® T with an output of 13 kW. are air/water heat pumps that are extremely easy to install. The two lines will be expanded from July 2019 to include The UltraSource® T line gets its energy from groundwater or models with an output of 8 and 17 kW. This will bring the geothermal heat – a combined water/water or brine/water range up to a total of ten products – differing according to heat pump. The two B and T lines are available with or house size, insulation and the number of people. without an integrated 200 litre hot water storage tank, which saves space. All the connections are arranged so that the New to the range: units can be placed in a corner.

■■UltraSource® B comfort C (8): Air/water Hoval has been supplying customers with heat pumps ■■UltraSource® B comfort C (17): Air/water since 1975 – the technology of the future. In some countries, ■■UltraSource® B compact C (8/200): most owners of one or two-family homes already rely on Air/water with hot water storage tank heat pumps. In other countries, they are in the process of ■■UltraSource® T comfort (8): Brine/water or water/water replacing gas boilers as the most common heating system. ■■UltraSource® T comfort (17): Brine/water or water/water “We have been seeing growth in the double digits for years,” ■■UltraSource® T compact (8/200): Brine/water or water/ says a delighted Stefan Müller. water with hot water storage tank

“The 17 model is even suitable for use in apartment buildings,” says Stefan Müller, head of product management. The Hoval external sales team supports interested installers with data to assist with the planning for heat pumps.

UltraSource® from Hoval has many impressive features:

■■10 models with air/water, water/water and brine/water pumps with various outputs and with or without hot water storage tanks will be available from July 2019. ■■The new 17 kW models are also suitable for use in apartment buildings. ■■All models are space-efficient – particularly those with an integrated water storage tank. ■■The quietest heat pump on the market.

Insights 01 | 2019 37 In detail: Expanding the UltraSource® line

Smart, attractive, quiet – and very efficient

What are the benefits of Hoval heat pumps? Firstly, Hoval Control, design and noise levels are still not everything this provides entire systems with intelligent control technology – product has to offer: Hoval heat pumps are champions when via a room operating module in the home, the HovalApp when it comes to energy efficiency – thanks to automatic output you’re on the move or the internet-based HovalConnect on adjustment, an individual controller strategy and high-qua- the computer. With TopTronic®, you can specify individual lity, energy-saving components. daily or weekly programmes. TopTronic® obtains the weather forecast from the internet every three hours and automatically takes this into consideration. System components, such as solar panels, ventilation or cooling, can be added at any time and intelligently networked. The operation technology for the Hoval system is unparalleled – especially for tech-savvy In terms of overall operating costs, residents. UltraSource® from Hoval is the current Secondly, Hoval also stands out for those who value aesthetics. The design of the outer unit does not have to be hidden benchmark on the market. away. Its slats lend it a similar look to part of a façade or a modern piece of garden furniture. Last but not least, this is the quietest heat pump on the market. Hoval had this assessed by an independent institute – at a distance of 3 m, the noise level of the outdoor unit is 28 dB(A) – quieter than rustling leaves in a forest. The Hoval engineers achieve this with clever solutions such as output adjustment in line with demand, night-time operation or noise-reducing design.

The UltraSource® heat pump has made a name for itself – in a good way.

38 Insights 01 | 2019 Survey. Hoval wants to hear from you The Hoval “Insights” magazine can help your business succeed, giving you an insight into new technologies and applications. To put it briefly, you can really get something out of it – and now you can get even more, as we are giving away novelty speakers designed to look like the UltraSource® heat pump. All you need to do is answer a few questions.

Hoval wants to understand how you Win 1 of 10 use the “Insights” magazine: Do you ® UltraSource pick up a printed version or read the speakers! magazine on the Hoval website? And what do you like about the content?

Just a few questions that you can answer right away. Scan the QR code using your smartphone to see the questions. All you need to do to take part in the competition is tick the answers that apply to you.

You’d better get a move on as the first twenty people to answer will win an exclusive UltraSource® speaker.

The information you provide will be confidential and used to make improvements to “Insights”. Ultimately, the global Hoval magazine wants to make sure that it is hitting the right

® notes for you and that you are getting A treat for the eyes and the ears: the Bluetooth-enabled UltraSource speaker. the information you need to run your business successfully.

Follow the link to enter the competition: hoval.com/insights

IMPRESSUM „Insights” - the Hoval Group magazine Appears biannually at varying times. Responsible: Management Board/Marketing

PUBLISHER: Hoval Aktiengesellschaft Austrasse 70 9490 Vaduz, Liechtenstein

EDITING: Andrea Schädler Ernst Carli

Printed on environmentally friendly paper.

Online version available at hoval.com

Insights 01 | 2019 39 Hoval Aktiengesellschaft environment and energy for Responsibility hoval.com Liechtenstein Vaduz 70 |9490 Austrasse

4217987 _ Insights 01 | 2019 ENGLISH