Jung sets up the Hotel España with KNX technology

The Hotel España, one of the icons of modernism in Barcelona's historic centre, has been completely renovated, while maintaining the modernist style of its decor as designed by celebrated architect Lluis Domènech i Montaner. Better known as Fonda España, this work of architectural art, first opened in 1859, has been converted into a deluxe 4-star hotel, which combines modern interior design with the classic architectural elements of its 19th-century building.

As part of the remodeling, an automation and control project has been carried out using KNX technology, along with integration of all of the building's systems in order to maximize energy savings. The integration of the systems has been performed by Aplitec (www.aplitecsl.com), with the project led by David Blanco and Francesc Clavé. The main objectives of the KNX integration and automation project were inspired by the energy savings successfully obtained by other hotels that are part of the Grupo Condes chain, where significant savings on electricity costs have been recorded thanks to precise control of lighting and climatization systems.

Saving energy is fundamental for hotel chains. The highest energy costs are derived from climatization, so this project has provided the hotel with a customised solution to allow control of temperatures and working modes in each area of the hotel. Applying logical scheduling based upon exterior temperatures, while maintaining a comfortable atmosphere in the interior, KNX also adjusts temperature thresholds in unoccupied rooms or other areas, to prevent excessive contrasts in ambient temperature and to maintain overall comfort. All of this is achieved through the use of an Intesis Box interface, which controls a Mitsubishi Electric G50 system. Temperature adjustments are made through programming created in VBScript, using Elvis software from Jung.

As for lighting, KNX manages the Dali, DMX, and RBG LED systems, as well as the ambient illumination. It allows scheduling of regulated hours in order to improve functionality, comfort, and energy savings, especially in the larger common rooms. This control is carried out using Jung interfaces, switches, and dimmers, and is displayed using the Elvis software.

This type of display has been one of the most important developments, because since the hotel is considered to be one of Barcelona's jewels of modernism, no switches, screens, displays, or thermostats have been installed in any of the common areas. Instead, control now takes place through the Elvis software interfacing with the hotel's network. Guest rooms have lighting scenarios for entry and exit created using electrical relays, while the suite has the greatest range of lighting options, with full control available for each room.

The Elvis software is also used for display and control of the sanitary hot water and climatization systems, and it monitors readings and generates alerts if there are problems with the protection systems in any of the rooms.

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