Condensing Tech- Nology for Added Value When Heating with Oil

ROTEX oil condensing boiler

Condensing technology for added value when heating with oil

The ROTEX A1 oil condensing boiler delivers maximum efficiency with every type of heating oil. It is environmentally compatible, economical and prepared for bio-oil.

A+ ++ XL A

* ROTEX system consisting of: A1 BO 20-e, SCS 538/16/0-DB, RoCon control, 4 solar collectors V26P ROTEX oil condensing boiler

Lower your consumption – the modern way

ROTEX oil condensing technology adds value Saving is environmental friendly Selecting the right boiler for your oil heating system is a deci- The ROTEX A1 defines the current state of the art in oil boiler sion affecting the next 15 to 25 years. The fuel costs for your technology. Minimal emissions, straightforward operation and heating system over this time will be multiples of the initial maximum energy utilisation characterise the ROTEX A1 oil con- investment. Fuel costs, therefore, offer you the greatest poten- densing boiler. The most advanced technology converts the tial for savings. Only condensing technology achieves virtually fuel used into useful heat, with virtually no losses. This protects complete energy utilisation. When replacing existing boilers, the environment and your wallet. Reduced energy consump- the ROTEX A1 achieves energy savings up to 40 % thanks to its tion means not only lower heating bills, but also protection of

outstand ing levels of efficiency. So that you can be sure that energy resources and lower CO2 emissions. your investment will pay off, ROTEX also guarantees the boiler body for 15 years. Be prepared for anything – ready for bio-oil In future, an increasing proportion of bio-oil, or bio-oil constituents, will be added to conventional heating oil. The ROTEX A1 is already prepared for the combustion of all types of commercially available heating oil, including those with biogenic constituents. With the ROTEX A1, up to around 20 % biogenic constituents (FAME) can be added to heating oil without impact on the operational safety, and without increased mainte- „Our old oil fired heating system simply had to go. nance effort. The burner components have been developed It didn‘t take long for the new ROTEX oil conden- to cope with the demands placed on them by bio-oil, in other words: ready for bio-oil. sing boiler to win us over though. It‘s extremely economical, low maintenance and so flexible that it can even be combined with a solar thermal system. We added one right away and have made more savings than we ever thought possible.“

Antje and Stefan Ernst have owned their family home for 30 years

ROTEX A1 – ideal as a replacement boiler in existing installations The ROTEX A1 is ideal as a replacement for older boilers. Its excellent flexibility when updating existing systems, its light weight, compact dimensions make it the modernisa- 15 tion specialist. year guarantee

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Efficiency made transparent Strong system solution: Oil condensing and solar

September 2015: Efficiency classes for products and systems Excellent package label ratings New: energy efficiency labels for Individual heat generators will each bear a product label. Hooking up a solar thermal system is the most effective way to heating systems The efficiency of a heating system depends not only on the reach a higher overall system efficiency class. The ROTEX Sani- + We‘re familiar with these labels on heat generator, but on several components. That is why the cube thermal store is already optimised for hooking up with a A fridges, televisions and other electrical combination or package label was introduced. This covers the solar thermal system, and provides the ideal complement to appliances. From 26 September 2015, heat generator plus other components such as the controller, the ROTEX A1. When linked up to a ROTEX Solaris, this system ++ heat generators and water heaters cylinders, solar thermal systems and/or an additional heat ge- will become your own personal ‚solar heater‘. The integral XL A will bear their own EU energy efficiency labels. These labels nerator. The combination label is calculated from the efficiency central heating backup and large storage volume will raise your will make it easier to compare individual heating products and values of the individual appliances and devices. system‘s energy efficiency ratings for both domestic hot water * ROTEX system consisting of: A1 BO 20-e, SCS 538/16/0-DB, decide which ones to buy. and space heating. RoCon control, 4 solar collectors V26P Expert advice How the energy efficiency classes are determined Every building is different. Your choice of a new heating system, The product‘s seasonal energy efficiency will determine its especially as part of modernisation, should not be based solely energy efficiency class. Put simply, this indicates the relation- on the efficiency rating. Depending on the characteristics of ship between the total energy input and the useful heat out- your building, a heating system with a low efficiency rating put. The greater the proportion of renewable energy used to may consume less energy than a system with a higher rating. generate heat, the higher the efficiency class. As a result, heat Consequently it‘s important to get expert advice and help with pumps are usually in the top efficiency classes (A+ and above), sizing: that‘s where your ROTEX partner comes in useful. followed by gas and oil condensing boilers, with conventional boilers bringing up the rear, as they tend to perform compara- tively poorly against the relevant criteria.

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Product label Safe in the knowledge it‘s ROTEX System diagram: A1 oil with thermal store and solar A1 BO 15-e All ROTEX products are tested and meet the criteria in the Eco- thermal design Directive. For both individual products and packaged 2 solutions, energy labels are a reliable indicator of efficiency 1 Oil condensing boiler with built-in class. electronic controller ϮϬ 1 2 Thermal store ϱϱĚ Ŭt Perfectly matched in terms of their individual components, our 4 3 Solar thermal collectors complete systems provide both maximum convenience and 4 Solar pump station the highest safety standards.

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Digital RoCon controller. Combined with the ROTEX RoCon B1 gateway, it Always at the cutting edge can be controlled via the ROTEX App Environmentally compatible low-noise blue flame oil burner

TWINTEC boiler body

Quality is our patent remedy Balanced flue operation The boiler body on the ROTEX A1 has been developed as standard Your benefits with the ROTEX A1 using entirely new, patented TWINTEC boiler technology. oil condensing boiler Advanced high performance materials were used throug- hout, rejecting materials suffering from corrosion entirely. The Outstanding efficiency Burner chamber insert made corrosion resistant stainless steel pipes which carry the heating • Energy saving condensing technology of stainless steel water are directly cast into the boiler body, made of die-cast • Low water content saves up to 30 % heating aluminium. The spherical shape of the boiler body, which oil in DHW generation is also patented, allows unrestricted condensing utilisation • Balanced flue operation as standard directly inside the boiler, without the need for an additional heat exchanger. That makes cleaning easy. The directly cooled Space-saving • Small footprint of 0.45 m2 Closely-fitting insu- Regulated high-efficiency combustion chamber also very effectively reduces the formati- • Approved for installation directly adjacent lating shells reduce pump (EEI < 0.23) on of nitrogen oxides (NOX). to safety heating oil tanks heat losses Reduced water content for greater energy savings Innovative technology When no heating is required, e.g. during the summer, your • Patented and multi-award winning boiler runs exclusively to generate domestic hot water. Condensing technology: Integral flue gas sensor, TWINTEC technology The lower the weight and water content of the boiler, the Additional energy yield plastic flue outlet • Intuitive operation of electronic controller less energy is required for heating. Consequently, less heat is as a result of lower flue • Ready for bio-oil (B20) and all commercially wasted when reheating the DHW cylinder after completing the gas temperature and the available types of heating oil heating process. The ROTEX A1 has a very small water content extraction of condensati- • The unique primary bypass means that no (just 3 litres for the A1 BO 20-e) and thus suffers minimal cool- on heat minimum circulation volume is required, Additional benefits down losses. nor is an external overflow valve • Corrosion-free and durable plastic enclosure A plastic pipe as a flue Meets your needs • Stainless steel oil hoses As a result of the typically low flue gas temperatures involved • Ideal for replacing existing oil boilers • Economical DHW generation in condensing utilisation, an economical flue pipe made of • Simple chimney refurbishment • Low weight plastic is all the ROTEX A1 needs. This can be simply drawn into • Straightforward maintenance • Straightforward maintenance an existing installation shaft or an old chimney. • Odour-tight stainless steel hoses to avoid Integrated Small footprint: the smell of heating oil Excellent efficiency, prize-winning technology condensate treatment 62.5 x 72 cm • 15 year guarantee on the boiler body ROTEX can draw on over 20 years of experience with oil condensing technology. The ROTEX A1 has been developed consistently over this period and many of its details have been optimised. This boiler has been awarded many international prizes over recent years, and deservedly so. 1 2 3 1 European patents for ROTEX A1 2 Innovation prize for ROTEX A1 3 Innovation prize 2010

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Advanced oil central heating

ROTEX Sanicube ROTEX variosafe safety oil tank The high performance thermal store. Installation without heating room, Optimum hygiene and DHW convenience with maximum odour block

Everything under control Heating oil storage The digital RoCon controller meets the highest aspirations and In combination with the ROTEX variosafe double-walled hea- is easy to operate. The display shows values and parameters in ting oil tank, you can store oil directly adjacent to the boiler in plain text. All operating modes and operating parameters can the same room. This means that you can use your existing oil be set and modified easily and quickly. Important system pa- storage room for other purposes, e.g. as a hobby room, for a rameters can be accessed and adapted to suit by your heating sauna, etc. In Germany, the Building Regulations (German State engineer. The heating water temperature is regulated subject Fire Codes) permit heating oil storage of up to 5000 litres in the to temperature. The controller automatically recognises sum- same room when the balanced flue ROTEX A1 oil condensing mer and wintertime and switches the heating mode on and off boiler is used with the ROTEX variosafe oil tank. And this is to suit demand. It has individually adjustable timer programs without walling off, or the use of an oil bund. for convenient control of the heating circuit and DHW generation, and can be supplemented by a room controller, which DHW at its hygienic best can be used conveniently to control and monitor the heating The ROTEX Sanicube thermal store is an ideal supplement system. to the ROTEX A1 heating system. It had been conceived in accordance with the latest heating technology and water hygiene requirements. Its special design is tailored to provide the best possible water hygiene. Deposits of sludge, rust, sedi- ments and even the growth of dangerous legionella bacteria, which can arise in large volume tanks, are prevented.

ROTEX A1 oil condensing boiler Maximum efficiency for all types of heating oil

The hybrid control RoCon Heat from the sun It not only regulates the A1, but also manages heat store, The straightforward ability to combine the ROTEX A1 the heart of the hybrid heating system. This overarching hybrid with solar energy has already been taken into account management system provides for the highest levels of system at the development phase. The ROTEX Solaris system efficiency and optimum convenience for heating and domestic exploits free solar energy for DHW generation and central hot water. Straightforward and consistent handling of the heating backup. When combined with the A1 oil con- ROTEX A1 – with intuitive menu navigation and control via densing boiler, the ongoing energy costs can be reduced your smartphone using the ROTEX App. to approximately 51 % of those of a current standard heating system using a low temperature boiler.

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Think DHW hygiene when buying a heating system

ROTEX Sanicube - the hygienic thermal store The ROTEX thermal store is a combination of domestic hot wa- Your benefits with the ROTEX Sanicube ter tank and instantaneous water heater. The heat is not stored thermal store in the domestic hot water itself, but in the clearly separated tank water. Optimum tank stratification ensures that the provi- Outstanding efficiency sion of hot water is always guaranteed. • Efficient energy saving thanks to full thermal insulation made from PU rigid foam The drinking water is contained in a high-performance heat Hygiene exchanger made of durable stainless steel (INOX). Your drinking • Highest level of hygiene by the separation of water remains perfectly hygienic. the storage tank water from the domestic water The storage tank water is added at commissioning and • No deposits, no legionella generation serves only for thermal storage. It is not exchanged and Meets your needs consumed. The inner and outer walls are impact-resistant • Minimum space requirement and simple installa- polypropylene, the space in-between is filled with highly tion due to compact design and low weight heat insulating foam. This results in very good heat insulation • Long-life and safe as a result of the used materi- values and minimum surface losses. als plastic and stainless steel • Low scaling • Sophisticated innovative technology, with 25 years’ experience • Modular system: Interconnection of several storage tanks possible for high-volume hot water demand • Connection to the most varied of heat generators and heat sources

“When the hot water storage tank had to be replaced, I was The first thing we need for foodstuffs is clean water amazed how much deposit had collected in the old unit. As a re- The hygienic thermal store principle: sult, our installer recommended us the Sanicube from ROTEX. The The domestic water to be heated is conveyed and heated through a separate high- water-hygiene advantages convinced me. I can now enjoy every performance heat exchanger made of stainless steel. Water that is charged first is drop again.“ also the first to be removed (first-in first-out principle).

Sabine Hiller about her experiences using the Sanicube thermal store

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A perfect combination: Solar systems by ROTEX condensing + solar

Sunny outlook Stock up on solar energy with the ROTEX thermal store ROTEX Solaris: 2 possibilities - always the first choice The Solaris solar panels are only filled if there is enough heat ROTEX Solaris utilises free solar energy to back up the ROTEX Solaris uses solar energy for domestic hot water heating ROTEX Solaris is available in two different variants, that meet from the sun and if the thermal store can absorb heat. heating system. High performance solar collectors developed and provides effective backup for central heating. Alongside all structural conditions and individual requirements. The fully-automatic control system controls the system and produced in-house at ROTEX can be installed in a variety solar DHW heating, solar central heating backup is integra- independently to provide optimum utilisation of the solar of ways and offer the highest levels of energy efficiency. ted ready for connection on the Sanicube with 500-litre tank 1. The pressurised solar system (Solaris-P) energy. If the sunshine is insufficient, or if the solar thermal capacity. If heat from the sun is not employed immediately, the The pressurised solar system impresses with its simple installa- store does not need any more heat, the feed pump switches Low expenditure – high yield ROTEX thermal store can store large amounts of solar energy. tion and is suitable for all applications and buildings. off and the entire solar system drains into the thermal store. At peak levels, 80 % of the solar energy that has been Heat for DHW or central heating can be used more than a day It operates efficiently and safely at any desired length of pipes The addition of antifreeze agents is not required since the captured can be converted into usable heat. The high later. and feed height. The well-engineered structure of the ROTEX panel surface is not filled with water when the system is not efficiency of ROTEX flat-plate collectors makes this possible. solar thermal store means that an additional plate heat ex- operating. This is a further plus from the environmental Solar energy and the A1 oil condensing boiler complement changer is not required. A bivalency heat exchanger for pres- perspective. The principle functions only if the connection each other perfectly. Depending on demand, the condensing Your benefits with the ROTEX Solaris surised solar or other heat sources is already incorporated. pipes in the building and on the roof are installed with a boiler contributes the necessary amount of heat to the heating solar system That makes the system simple and flexible. constant gradient. If this is not possible, the pressurised solar system. system is the optimum alternative. • Efficient utilisation of free solar energy for hot 2. The direct Drain-Back system (Solaris-DB) water and heating If the constructional conditions permit, we recommend the • Hygienic hot water generation unpressurised and direct Drain-Back system. The water in the • Optimum temperature stratification in the store is supplied directly and without heat exchanger to the ROTEX solar thermal store increases solar use solar panels, heated and then stratified into the store. This • Perfect incorporation with the most varied of considerably increases the efficiency of the solar collectors heating systems and the entire utilisation of the installation. Since the system is unpressurised, components which would otherwise be required are not necessary, such as the expansion tank, pressure relief valve, pressure gauge and heat exchanger.

ROTEX Solaris solar panels - flexible assembly 4500 Monthly energy consumption of an The Solaris solar panels convert almost all of the shortwave solar radiation into 4000 average single-family house heat through their highly selective coating. The three different solar panel sizes 3500 The diagram shows the monthly energy mean there is flexibility in adapting to roof characteristics. Since all buildings 3000 consumption of an average single-family

are different, there are various installation options for fitting the ROTEX flat solar kWh 2500 home. It compares two system types: 2000 panels onto the roof. The solar panels can be fitted onto the tiles (on-roof), The white bar represents the energy 1500 into the roof (in-roof) or also with a special substructure onto a flat roof. 1000 consumption using an old boiler. 500 The grey/yellow bar shows a system with the ROTEX A1 with 4 solar panels. Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

Old system Condensing boiler Use of solar energy

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Technical Data

System efficiency with Solar*: * ROTEX system consisting of: + A1 BO 20-e, SCS 538/16/0-DB, A RoCon control, ++ 4 solar collectors V26P XL A

Oil condensing boiler A1 BO 15-e A1 BO 20-e A1 BO 27-e A1 BO 34-e Solaris flat solar panels V 21 P V 26 P H 26 P Energy efficiency class Dimensions (W x D x H) mm 1006 x 85 x 2000 1300 x 85 x 2000 2000 x 85 x 1300 Space heating (flow temperature 55 °C) AAAA Gross surface area m2 2.01 2.60 2.60 Space heating with integrated control Water content litres 1.3 1.7 2. AAAA (flow temperature 55 °C) Absorber Harp-shaped CU pipe register with highly selective coated aluminium plate welded on Key details Coating Miro-Therm (absorption max. 96%, emission approx. 5% ± 2%) Rated output to DIN-EN 303 kW 15 20 24 34 Glazing Single pane safety glass, transmission approx. 92% Ready for bio-oil yes yes yes yes Possible inclination min. – max. on-roof and 15° – 80° Factory setting 15 kW / %* 18 kW / %* 25 kW / %* 30 kW / %* flat roof Setting range with standard equipment1) 15 kW / %* 15 – 20 kW / %* 24 – 27 kW / %* 27 – 32 kW / %* Possible inclination min. – max. in-roof 15° – 80° Permissible operating pressure bar 4 4 4 4 bar The solar panels are standstill resistant in the long-term and are tested for thermal shock. Max. permissible flow temperature °C 80 80 80 80 Minimum collector yield over 525 kWh/m2 at 40% covering proportion, (location Würzburg, Germany). Max. boiler efficiency [to DIN] % 105 105 10 105 Circulation pump Regulated HE – ErP-ready (EEI < 0.23)3) Flue gas temperature °C 35 – 75 35 –85 38 – 89 40 – 98 Solaris accessories Control and pump unit RPS4 Pressurised solar regulator Pressure station Weight of boiler body kg 49 49 58 67 for Drain-Back use DSR 1 for Solaris-P RDS 2 Total weight Unit2) kg 81 81 96 113 Dimensions (L x W x H) mm 230 x 142 x 815 145 x 95 x 60 240 x 410 x 130 Dimensions (W x D x H) mm 625 x 720 x 1100 625 x 720 x 1100 625 x 720 x 1470 625 x 720 x 1590 Operating voltage V / Hz 230 / 50 230 / 50 230 / 50 Minimum height of installation room mm 1340 1470 1470 1590 mains voltage in accordance with V ~230 (+10/-15%) ~230 (+10/-15%) ~230 (+10/-15%) Water contents Litres 3 3 4.5 5 DIN IEC 60 038 Flue gas/air intake connection mm 80/125 80/125 80/125 80/125 Switching capacity of the relay V ~250 (AC 2 (2) A) ~250 (AC 2 (2) A) – diameter Maximum electrical power consumption W 65 5 45 Controller RoCon B1 RoCon B1 RoCon B1 RoCon B1 (modulating*15 – 65) (max.) (modulating 2 – 45) * Can be parametrised via RoCon controller Protection rating in accordance with – IP 40 – 1) Conversion kits required for lower and higher outputs – see accessories in the current pricelist DIN EN 60529 2) Transport weight with enclosure and condensate treatment system removed Control Digital temperature difference Digital temperature – 3) The European eco-design and ErP guidelines stipulate that, from 2015, only pumps with an energy efficiency characteristic EEI < 0.23 can be fitted controller with plain text display and PWM difference controller with in boilers. From 2020 these requirements will also apply to replacement parts. All ROTEX condensing boilers A1 and GCU compact are already fitted output plain text display and PWM with pumps approved for use beyond 2020. output Feed temperature and flow sensor FLS 20* with PT 1000 (included in the set) – – Feed temperature sensor – PT 1000 – Permissible ambient temperature in operation °C 5 - 40 0 - 50 – Probe resistances PTC PT 1000 – * Modulating operation only possible with FLS.

Thermal store SCS 538/16/0-DB SCS 538/16/16-DB SCS 328/14/0-P SCS 538/16/0-P SCS 538/16/16-P US 150 Energy efficiency class DHW heating (tapping profile) BBBBBA Key details Total cylinder capacity Litres 500 500 300 500 500 148 Empty weight kg 88 94 57 93 99 44 Total charged weight kg 588 594 357 593 599 192 Dimensions (W x D x H) mm 790 x 790 x 1658 790 x 790 x 1658 595 x 615 x 1646 790 x 790 x 1658 790 x 790 x 1658 600 x 1000 x 660 DHW capacity Litres 24.5 24.5 19 24.5 24.5 148 Safety oil tank vsf 1500 vsf 1000 vsf 750 vsf 600 Hygienic DHW generation on the Storage capacity Litres 1500 - 7500 1000 - 10000 750 - 7500 600 - 6000 instantaneous water heater principle Capacity per tank Litres 1500 1000 750 600 Pressurised solar combination Dimensions (W x D x H) mm 780 x 1340 x 1920 780 x 980 x 1960 780 x 780 x 1680 780 x 780 x 1390 Drain-Back combination Weight kg 82 57 39 kg 32 Pressurised solar combination DIBt approval no. Z-40.21-196 Z-40.21-196 Z-40.21-196 Z-40.21-196 Solar central heating backup Collection facility not required! not required! not required! not required! Dual mode solution Manufacturer’s guarantee 15 years 15 years 15 years 15 years (combination with additional heat generator or swimming pool) Accessories can be found in the current ROTEX pricelist. Please check with your heating contractor. More store types can be found in the current pricelist. Please check with your heating contractor. Information in printed materials subject to correction and technical modification. 14 From 26 September 2015, energy efficiency labels and current product datasheets can be obtained using the Energy Label Generator at www.rotex-heating.com. 15 What makes ROTEX different? ROTEX Heating Systems GmbH We offer individual solutions for optimum living and working Langwiesenstraße 10 that are straightforward, intelligent, and futureproof. D-74363 Güglingen www.rotex-heating.com ROTEX is a manufacturer and supplier of complete innovative and environmentally responsible heating systems – building on decades of experience. Since 1973, ROTEX has stood for innovation and know-how in the field of heat generation, storage and distribution. In the development of products for our high grade and perfectly matched components we focus on user benefits.

The ROTEX product range extends from heat pumps, condensing boilers for oil and gas, solar thermal systems and thermal stores, not forgetting underfloor heating, heating oil tanks and rainwater tanks, right up to a comprehensive installation system for all sanitary and heating equipment. Innovative systems that facilitate the optimum use of conventional and alternative fuel types in both modernisation and new build projects. ROTEX products stand for unique cost efficiency with maximum environmental compatibility and the highest levels of flexibility.

ROTEX Heating Systems GmbH is a wholly owned subsidiary of Daikin Europe NV, making it a member of the DAIKIN Group, the world’s leading manufacturer and supplier of products for heating, ventilation and climate control. Our combined competence generates optimum product solutions to meet the highest user aspirations. © ROTEX · Subject to technical modifications · 008EN15273_02 07/2015 · Subject technical to © ROTEX