As a supplier of trucks, buses, diesel engines, turbomachinery and turnkey power plants, the MAN Group is one of Europe's leading commercial vehicle, engine and mechanical engineering companies. In 1897, Rudolf Diesel built the world's first functioning diesel engine at Maschinenfabrik, which can look back on more than 250 years of company history, has been trading under the name MAN since 1908 and has been headquartered in Munich since 1986. The group of companies generates an annual turnover of around 14.7 billion euros (2010) and employs around 47,000 people at 120 locations worldwide. The Tempelhofer Weg 5 service station in Berlin is now the first location to be equipped with the H.Y.B.R.I.D. system from KÜBLER: an investment of around 120,000 euros.
When the repair or maintenance work on one of the large trucks or buses at the MAN Service Station Tempelhofer Weg in Berlin was completed in winter, one of the eight large hall doors would open. The doors were often open for minutes at a time until the vehicle was parked outside, the paperwork was cleared in the office and a new vehicle was driven into the hall. Regardless of the hot air blowers that continued to heat up. However, this was not the only reason for the high consumption costs in Tempelhofer Weg. The oil-fired heating system was getting on in years. The company headquarters in Munich saw a need for action. The initial plan was to replace the two 435 kW and 230 kW boilers connected in parallel to heat the halls and office areas (built in 1990 and 1991) and the additional boiler for hot water preparation (55 kW, built in 1985) with two controllable gas condensing boilers. However, after a telephone call between the MAN purchasing manager and the KÜBLER Berlin office, the specifications and tender were reformulated and KÜBLER finally received a Christmas present: on 23.12.2010, the order for the modernization of the heating system at the MAN site at Tempelhofer Weg 5, Berlin was placed with H.Y.B.R.I.D..
Four OPTIMA plus 40 and four OPTIMA plus 25 were installed in the 85 x 28 m hall, which is 8 m high at the highest points. The annexes - brake tester and spare parts store - are heated by two AR 22s. The exhaust gases are routed to the O.P.U.S.X 600 via a collective exhaust system, which is controlled centrally from the branch manager's PC via R.O.S.S.Y.
The project was not easy. Firstly, there were the strict time constraints, as MAN wanted to test the functionality of the energy-saving system during the current heating period. Then there was the issue of gas. The supply had not yet been applied for. The arrangements with GASAG were completely taken over by the project management, the laying of the gas pipes, which under normal circumstances would take 6 weeks, was completed in 10 days. And finally, the entire installation had to take place during ongoing operations.
The five pits were practically constantly occupied and posed additional challenges because they were difficult to access with the lifting platforms. Work was carried out from 8 a.m. to 8 p.m., hand in hand with the other trades, such as the installation of the conventional hot water heating system. The fact that the project could still be handed over on time and to the client's complete satisfaction in March of this year was not only due to our dedicated assembly team: we had excellent support from the MAN team, who provided us with the necessary space for assembly and storage of the materials, depending on where work was being carried out.
MAN is very satisfied with the new hybrid heating system, which now ensures continuously pleasant temperature conditions in the repair hall, brake stand, warehouse and sales offices. Despite the complete exchange of air when the hall doors are opened, the heat quickly returns to the temperature target of 18 C° - this would hardly have been possible with warm air. The integrated door-off control system ensures that no unnecessary heating is required, thereby increasing the efficiency of the heating system. A useful side effect, by the way: because you want it to be warm again as soon as possible, the people in the repair hall at MAN are now very keen to close the doors quickly so that the heating starts up.
About KÜBLER
With its innovative infrared systems, KÜBLER GmbH develops and sells modern and economical technology for heating large spaces and today, as a full-service provider of turnkey solutions, offers a comprehensive range of products for different types of halls and room environments. The company is regarded as an innovation leader in the industry and is regularly recognized for its innovative achievements - most recently in 2011 with a nomination for Premier, the highest award at the Grand Prix of Medium-Sized Enterprises. KÜBLER has registered six patents and twelve trademarks. Founded in 1989, the company employs around 100 people and has branches in Ludwigshafen, Dresden, the Czech Republic and Hungary.
