In addition to the individual rooms, there was another modernization level at the Radisson Blu: a second DDC level, for which WAGO controllers were also used. The BACnet version of the PFC200 provides the room visualization and also offers the building technology quick access to the individual room controllers, independent of the central BMS. The visualization that is integrated into WAGO’s PFC200 is based on HTML5 and can be opened in any browser.
“Due to negative experiences with proprietary systems, we specifically chose an open industry solution in Cologne,” explains Detlef Brunke. Those experiences led all of the project partners to mainly choose WAGO controllers for the upgrades. Due to the high degree of standardization, the hotel operators and building owners could be equally certain that replacement parts, expansion components and, most importantly, technical support would be available for many years.
The modernization of the Radisson Blu Hotel in Cologne demonstrates how powerful building automation can retrofitted even if structural restrictions lead to serious limitations, particularly for communication. In this case, WAGO controllers form platform that provides maximum intelligence on site. This reduces the data volume on the previous LON® bus, with its severely restricted bandwidth. The modular structure of the WAGO controllers also provides wide-ranging possibilities for adding new room automation functions.
Text: Stephan Lampe, WAGO
Photo: Radisson Blu Hotel, Cologne, Thorsten Sienk