ROTEX gas condensing technology Compact and efficient. Gas condensing technology systems by ROTEX offer the highest level environmentally beneficial heating convenience with an impressive energy efficiency.
"We already had gas heating in our old rented flat. When we were planning our new house, our heating expert recommended the gas-solar combination GCU compact from ROTEX: efficient technology, compatible with a solar system and with compact dimensions. It was not just the sight of the final invoice that confirmed that we had made the right choice." Steffi and Thomas Klar, built their dream house 3 years ago 2
ROTEX gas condensing technology Efficient gas use. With ROTEX. The best answer to ever-increasing prices: Efficiency. The value and the cost of energy is constantly increasing. Choosing the boiler for your heating is a decision for the next 15 to 25 years. In this period the fuel costs of your heating system will amount to several multiples of the procurement cost. For this reason, the decision about a new heating system needs to be made very carefully. Gas condensing systems by ROTEX are developed and manufactured under consideration of the latest combustion and thermal technology knowledge. Simple in construction, in maintenance and excellent in its energy efficiency. A good decision! Saving yes, forgoing no! Least possible energy consumption and the sensible use of free regenerative energy sources with an increase in convenience, cosiness and safety are our aspirations. In order to meet these requirements we are looking to new product solutions and system concepts. As a result of their integrated structure and particular features, the ROTEX gas condensing systems create the prerequisites to ensure that you fully enjoy saving energy. Systematic condensing technology. Modern condensing technology converts the fuel used into usable heat virtually without loss. This is both good for the environment and your wallet, since lower energy consumption means lower heating costs, less use of energy resources and a reduction in CO 2 emissions. During this process, flue gases are cooled to the extent that the steam they contain is condensed. The energy that is generated is used as heating energy. Choose the ideal solutions for your needs. With ROTEX, you have the choice of various energy saving gas condensing boilers, from the floorstanding compact boilerwith integrated thermal store to the space saving wall mounted boiler. The new gas hybrid heat pump combines the benefits of two technologies further information can be found in the relevant product brochure and at www.rotex-heating.com. 1 Gas condensing/solar combination, ROTEX GCU compact 2 Gas condensing boiler, ROTEX A1 3 Gas condensing wall-mounted boiler, ROTEX GW 4 Gas hybrid heat pump ROTEX HPU hybrid 1 2 3 4 3
Gas condensing/solar combination ROTEX GCU compact Solar system ROTEX Solaris The Hybrid central unit open for all energy types. The GCU compact can be used as an efficient thermal store for additional heat sources. For example, in addition to a solar system, a fireplace with water pocket can be used to provide support during heating and hot water generation. If you are not installing a solar system directly, it can retrofitted quickly and easily at any time. 4
ROTEX GCU compact GCU compact. Made-to-measure for your home. A perfect team. The ROTEX GCU compact combines modern gas condensing technology with a thermal store and solar storage tank in the smallest possible space. Despite the compact dimensions, the condensing heating boiler is, however, separated from the thermal store by a fully insulated cover. This reduces the surface losses of the unit to a minimum and the cooling losses, experienced with conventional heating boiler/storage tank combinations, are avoided. This ensures that you save even more energy. Dream dimensions for your heating: Heating and hot water over an area of only 0.36 m 2. It doesn t matter whether solar energy is used or not, the ROTEX GCU compact is an optimum combination of highly efficient condensing boiler and hygienic thermal store. Through the uncompromising grouping of these functions, the GCU compact sets completely new standards with regard to extra space and energy exploitation. An area of only 0.36 m 2 (GSU compact 315/324) or 0.64 m 2 (GSU compact 515/524/533) is sufficient to accommodate the complete heating, hot water generation and solar stratified storage tank. Your advantages with the ROTEX GCU compact Gas condensing/solar combination. Highest efficiency Energy-saving gas condensing technology with an effectivity up to 110 % Innovative technology Integration of boiler and thermal store Lambda-Gx gas-adaptive combustion system with fully electronic gas-air combination Intuitive electronic regulation Domestic water hygiene Highest level of hygiene by separation of store and potable water No deposits, no legionella production As if made just for you For heating and hot water Compact dimensions, simple installation in the smallest space Flexible use, direct combination with solar system or existing fireplace with water pocket is possible The heat stays inside The storage tank is a twin layer structure made entirely from plastic. The space between the inside and outside container has excellent foam heat insulation. This extreme heat insulation ensures low overall heat losses for the ROTEX GCU compact. The hybrid control RoCon. Everything under control. The hybrid control RoCon also takes over the entire management of the thermal store, the heart of the hybrid heating system, alongside the regulation of the gas condensing boiler GCU compact or A1. This comprehensive hybrid management ensures the highest system efficiency and optimum convenience for heating and hot water. Simple and consistent handling for the ROTEX GCU compact with intuitive menu navigation and control via your smartphone with the ROTEX App. 5
kwh 4500 4000 3500 3000 2500 2000 1500 1000 500 Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Monthly energy consumption of an average single-family house. The diagram shows the monthly energy consumption of an average single-family home. It compares two system types: The white bar represents the energy consumption using an old boiler. The front bar shows a system with the ROTEX GCU compact with 4 solar panels. Old system Condensing boiler Use of solar energy 6
ROTEX GCU compact Unified forces. Perfectly combined. Gas condensing technology and solar energy. Low expenditure High yield. At its peak, 80 % of solar energy can be converted into usable heat. The extremely high efficiency of ROTEX flat solar panels makes this possible. Solar energy and the gas condensing/ solar combination GCU compact supplement each other ideally. The GCU compact adds the required amount of heat to the heating system to meet the demand. Sunny prospects. ROTEX Solaris exploits free solar energy and thus supports the heating system. High-efficiency solar panels from ROTEX s own production are variable in installation and offer the highest level of energy efficiency. As much sun as possible just enough gas to meet the need. The ROTEX GCU compact not only uses the free power of the sun for potable water heating, but also provides effective support for the heating system by solar energy, particularly in transition periods. Maximum water hygiene. Day by day. The integrated stratified storage tank is water-hygienic as a result of its construction and represents state of the art technology. Deposits of sludge, rust, sediments or even the multiplication of dangerous legionella bacteria, which can arise in many large-volume tanks, are not possible. Its exceptional water hygiene benefits have been confirmed by the Hygiene Institute at the University of Tübingen in an extensive study. Your advantages with the ROTEX Solaris. Efficient utilisation of free solar energy for hot water and heating Hygienic hot water generation Optimum temperature stratification in the ROTEX solar storage tank increases solar use Perfect incorporation with the most varied of heating systems A strong team. The ROTEX GCU compact comes ideally equipped for use with solar energy. If you want to delay installation of a solar energy installation, it can be rapidly and simply retrofitted. 7
Thermal store and solar storage tank ROTEX Sanicube Solaris Gas condensing boiler ROTEX A1 8
ROTEX A1 gas condensing ROTEX A1 gas condensing. Intelligent heating. Efficiency is a question of technology. The ROTEX A1 is an installation-ready gas condensing boiler with integrated intelligent electronic regulation, gas surface burner and energy-saving circulation pump. Efficiency levels of up to 110 % and extremely low toxic emissions are achieved through consistent condensing use. With conventional gas combustion, water vapour is also produced, and this leaves the chimney unused with the flue gases. In this way, conventional systems lose up to 11 % of the energy put in. ROTEX gas condensing boilers acquire this energy by the use of condensing technology and thus considerably increase the effectiveness. The low weight, the high level of corrosion resistance and the simple to install plastic flue gas system make the ROTEX A1 ideal for new-build and renovation. You can be sure of that. And continue to be. A completely new boiler technology was developed for the ROTEX A1 boiler body, that we call TWINTEC. We consistently used modern high-performance materials that transfer the heat from combustion directly to the heating network. Corrosion is systematically excluded as a result of the unique design. ROTEX has been issued with a European patent for this technology, which we pass on to our customers in the form of a 15 year guarantee for the boiler body. A more intelligent heating system thinks alongside you. Depending on the weather conditions and the consumer behaviour, the power requirements of a building fluctuate considerably. In the same way that a sportsman s pulse rate adapts, the A1 adapts its output to the ever-changing demand. The internal control electronics unobtrusively perform the management of the output for you without the need for any intervention. Convenience functions, such as hot water generation, working day control and weather-controlled regulation of the flow temperature are all integrated. High levels of energy utilisation and very environmentally beneficial operation are the logical consequences of this new development. It all depends on the correct mixture. Everything can be controlled. The RoCon digital controller meets the strictest of demands. Alongside the regulating functions of the A1 gas condensing boiler and the GCU compact, it takes over the entire management of the thermal store, the heart of the hybrid heating. This comprehensive hybrid management ensures the highest system efficiency and optimum convenience for heating and hot water. The display shows values and parameters in clear text. All operating modes, timer programs and operating parameters can be set and modified easily and quickly. Important system parameters can be accessed and adapted to suit by the technician. The heating water temperature is regulated in accordance with the outdoor temperature. The controller automatically detects winter and summer and switches the heating mode on and off to suit the demand. The controller is easy and intuitive to operate. It has individual adjustable timer programmes for convenient control of the heating circuit and hot water generation and can be supplemented by a room controller, which can be used conveniently to control and monitor the heating system. Your advantages with the ROTEX A1 Gas condensing boiler. Energy-saving gas condensing technology with an effectivity up to 110 % High-efficiency TWINTEC boiler body, corrosion resistant and durable Modulating operation of the burner constantly adapts the boiler output to the demand 9
Gas condensing wall-mounted boiler ROTEX GW "The ROTEX GW carries out its work in our guest apartment in the new annexe. We didn t need to incorporate it in our central heating system, which would have been expensive. It provides full convenience and was retro-fitted very simply." Steffi Klar, about the installation of the ROTEX GW 10
ROTEX GW gas condensing wall-mounted unit ROTEX GW. Small boiler. Big effect. Maximum efficiency in the smallest possible space. The ROTEX GW. The ROTEX GW gas condensing combination boiler offers the most convenient technology in the smallest space with maximum efficiency for hot water and heating. The hygienic generation of hot water is carried out on the instantaneous heater principle (version C). Thanks to energy-saving condensing technology, the ROTEX GW achieves an effectivity of up to 109 %. Simplest operation and installation as well as quiet running characterise the ROTEX GW. Simple, convenient, individual. In the ROTEX GW there are two output ratings and versatile flue gas technology installation variants for variable applications. It can operate using both natural gas and bottled liquid gas. The ROTEX GW is characterised by its many convenience functions. All the information about the operating status and temperatures can be called up very easily using the remote control on the ROTEX GW and even by remote request. Weather-controlled electronic regulation can be included upon request. In addition, it has a weekly timer programme (up to 4 heating phases per day, individually selectable), a motion sensor and holiday function, many ecofunctions and automatic summer/winter changeover. Quite a power package. The ROTEX GW is characterised by high hot water output and high level of consumption water convenience. The modulation ratio of 1 : 5 (100 % : 20 %) ensures optimum adaption to the individual performance requirements. The unit exhibits the NO X class 5 and is operated for maximum efficiency in a room-air independent manner. An integrated safety group is also included in the scope of delivery, as is a flue gas test adapter. Your advantages with the ROTEX GW gas condensing combination boiler. Most convenient technology in the smallest possible space with maximum efficiency for hot water and heating Level of effectiveness up to 109 % thanks to integrated plate heat exchanger made of stainless steel for hot water generation in the instantaneous throughput principle (version C) Extremely quiet operation With integrated 3-way valve for storage tank charging (version T) Room station ROTEX GW. The room station is used for intuitive regulation of all functions on the ROTEX GW. A clear text display and preconfigured operating button provide maximum convenience. The weekly timer programme can be used to define up to four heating phases per day. Many ancillary functions, such as remote call up of the operating status and temperatures make the room station particularly attractive. 11
Technical data 2) Gas condensing/solar combination GCU compact 315 Biv GCU compact 324 Biv GCU compact 515 Biv GCU compact 524 Biv Basic data Total tank capacity litres 300 300 500 500 Empty weight kg 86 86 124 124 Total filled weight kg 386 386 624 624 Dimensions (W x D x H) mm 595 x 615 x 1950 595 x 615 x 1950 790 x 790 x 1950 790 x 790 x 1950 Max. permissible storage water temperature C 85 85 85 85 Standby heating power kwh / 24h 1,7 1,7 1,8 1,8 Control RoCon Circulation pump highly efficient, regulated ErP ready (EEI < 0.23) 1) Domestic hot water Potable water capacity litres 19 19 24,5 24,5 Maximum operating pressure bar 6 6 6 6 Material of domestic drinking water stainless steel heat exchanger Heat generator characteristic data Nominal output kw 6,5 15 6,5 24 6,5 15 6,5 24 Rated thermal load kw 6,5 15,7 6,5 25,3 6,5 15,7 6,5 25,3 Device type B 23 / B 23P / B 33 / B 33P / B 53 / B 53P / C 13x / C 33x / C 43x / C 53x / C 63x / C 83x / C 93x Maximum permissible operating pressure bar 3 3 3 3 Maximum permitted operating temperature C 85 85 85 85 Maximum boiler efficiency % 108 108 108 108 Flue gas / air infeed connection diameter Solar combination Drain-back combination Pressurised solar combination Solar heating support Bivalency solution (combination with additional heat generator or swimming pool) 1) The European Ecodesign and ErP Guidelines stipulate that, as of 2015, only pumps may be used in heating boilers that have an energy-efficiency coefficient EEI < 0.23. From 2020, these requirements will also apply to spare parts. All ROTEX A1 and GCU compact condensing boilers are already fitted with pumps that will permitted from 2020 and beyond. 2) The product series "ROTEX compact class" has been granted the Plus X Award for innovation, high quality, design, functionality and ecology. 3) Liquified petroleum gas (LPG) mm DN 60 / 100 (with connection kit No. 155079.17 DN 80 / 125) 12
ROTEX GCU compact GCU compact 533 Biv GCU compact 315 GCU compact 324 GCU compact 515 GCU compact 524 GCU compact 533 500 300 300 500 500 500 124 86 86 124 124 124 624 386 386 624 624 624 790 x 790 x 1950 595 x 615 x 1950 595 x 615 x 1950 790 x 790 x 1950 790 x 790 x 1950 790 x 790 x 1950 85 85 85 85 85 85 1,8 1,7 1,7 1,8 1,8 1,8 RoCon highly efficient, regulated ErP ready (EEI < 0.23) 1) 24,5 19 19 24,5 24,5 24,5 6 6 6 6 6 6 stainless steel 6,5 33 6,5 15 6,5 24 6,5 15 6,5 24 6,5 33 6,5 32,5 (30,0) 3) 6,5 15,7 6,5 25,3 6,5 15,7 6,5 25,3 6,5 32,5 (30,0) 3) B 23 / B 23P / B 33 / B 33P / B 53 / B 53P / C 13x / C 33x / C 43x / C 53x / C 63x / C 83x / C 93x 3 3 3 3 3 3 85 85 85 85 85 85 108 108 108 108 108 108 DN 60 / 100 (with connection kit No. 155079.17 DN 80 / 125) 13
Technical data Condensing heating boilers with low-toxin oil blue burner or modulating gas surface burner, RoCon B1 controller, high-efficiency pump and LAS connection for room air independent operation. Gas condensing boilers A1 BG 25-e A1 BG 40-e Nominal output according to DIN-EN 303 kw 5 25 8 40 Factory setting kw / % 23 93 * 30 85 * Setting range in series equipment 1) kw / % 23 100 * 23 100 * Maximum permissible operating pressure bar 4 4 Max. permissible feed temperature C 80 80 Max. boiler efficiency % 109 109 Circulation pump highly efficient, regulated ErP ready (EEI < 0.23) 3) Flue gas temperature C 32 79 34 82 Total weight Unit 2) kg 77 107 Dimensions (W x D x H) mm 625 x 720 x 1100 625 x 720 x 1340 Minimum height of the installation room mm 1340 1590 Water content Liter 3 5 Flue gas/supply air diameter mm 80 / 125 80 / 125 Control RoCon B1 RoCon B1 * Can be parametrised via the RoCon controller 1) Conversion kits are required for higher or lower outputs of the A1 condensing boiler see accessories in the price list. 2) Transport weight with casing and condensation preparation removed. 3) The European Ecodesign and ErP Guidelines stipulate that, as of 2015, only pumps may be used in heating boilers that have an energy-efficiency coefficient EEI < 0.23. From 2020, these requirements will also apply to spare parts. All ROTEX A1 and GCU compact condensing boilers are already fitted with pumps that will permitted from 2020 and beyond. Solaris flat solar panels V 21 P V 26 P H 26 P Dimensions (W x D x H) 1006 x 85 x 2000 mm 1003 x 85 x 2000 mm 2000 x 85 x 1300 mm Gross surface area 2,01 m 2 2,60 m 2 2,60 m 2 Water content 1,3 litres 1,7 litres 2,1 litres Absorber Harp-shaped CU pipe register with highly selective coated aluminium plate welded on Coating Miro-Therm (absorption max. 96 %, emission approx. 5 % ± 2 %) Glazing Single pane safety glass, transmission approx. 92 % Possible inclination min. max. on-roof and flat roof 15 80 Possible inclination min. max. in-roof 15 80 The solar panels are standstill resistant in the long-term and are tested for thermal shock. Minimum collector yield over 525 kwh/m 2 at 40 % covering proportion, (location Würzburg, Germany). 14
ROTEX gas condensing technology Gas condensing combination boiler Unit GW 22C GW 26C GW 37C Nominal heat output P n (80 / 60 C) kw 4,5 21,6 5,8 26,2 8,5 36,5 Nominal heat output with condensation P no (50 / 30 C) kw 5,2 24,2 6,6 29,1 9,6 40,0 Efficiency % to 109 % Maximum flue gas temperature C 75 Maximum permitted operating overpressure (heating) PMS bar 3 Maximum permissible flow temperature C 85 Empty weight kg 36 38 44 Water content L 1,8 2,7 3,5 Size (W x D x H) mm 405 x 345 x 733 405 x 410 x 733 405 x 440 x 733 Heating connections inches ¾" Male thread Cold water and hot water connection inches ½" Male thread Gas connection inches ¾" Male thread Flue gas/ supply air diameter DN 60 / 100 Device type - B 23 B 23P B 33 B 33P C 13 C 33 C 43 C 53 C 63 C 83 Heating circulation pump - high efficiency pump Grundfos UPM2 15-70 Gas condensing combination boiler Unit GW 22T GW 26T GW 37T Nominal heat output P n (80 / 60 C) kw 4,5 21,6 5,8 26,2 8,5 36,5 Nominal heat output with condensation P no (50 / 30 C) kw 5,2 24,2 6,6 29,1 9,6 40,0 Efficiency % to 109 % Maximum flue gas temperature C 75 Maximum permitted operating overpressure (heating) PMS bar 3 Maximum permissible flow temperature C 85 Empty weight kg 36 38 44 Water content L 1,8 2,7 3,5 Size (W x D x H) mm 405 x 345 x 733 405 x 410 x 733 405 x 440 x 733 Heating connections inches ¾" Male thread Gas connection inches ¾" Male thread Flue gas/supply air diameter DN 60 / 100 Device type - B 23 B 23P B 33 B 33P C 13 C 33 C 43 C 53 C 63 C 83 Heating circulation pump - high efficiency pump Grundfos UPM2 15-70 15
What makes ROTEX different? We offer individual solutions for optimum living and working that are straightforward, intelligent, and futureproof. 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. ROTEX Heating Systems GmbH Langwiesenstraße 10 D-74363 Güglingen Tel +49 (71 35) 103-0 Fax +49 (71 35) 103-200 E-Mail info@rotex.de www.rotex-heating.com The ROTEX product range extends from air-to-water 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 Errors and technical modifications reserved 008EN15274_01 02/2014