Hamilton Bonaduz AG
Client
Hamilton Bonaduz AG, extension building
Project location
Domat/Ems, Switzerland
Project date
2024
Electrical planer
Scherler AG, Chur
Photo
Jens Ellensohn
ALL ON (LIGHT) TRACK
Human Centric Lighting is a lighting concept that uses tunableWhite technology to replicate the natural course of daylight indoors. With 1,500 TECTON tunableWhite luminaires, the medical technology manufacturer is operating one of the largest HCL projects in Switzerland.
Light in tune with nature
WE CARE ABOUT
For Achim Sax, the advantages of dynamically adjusted illuminance levels and light colours are obvious: ‘With this lighting solution, we can support our employees' biorhythms and thus contribute to their well-being in the workplace.’ In addition to scientific studies confirming the positive influence of HCL lighting solutions, Achim Sax was particularly impressed by the sample lighting, which was used to equip one department with tunableWhite technology on a trial basis.
‘We want to offer our employees added value in the workplace. With HCL lighting, we can support their natural biorhythms.’
Achim Sax, Director Facilities, Hamilton Service AG
Cold light and high illuminance levels energise and refresh employees from morning to afternoon. Warm 2700 Kelvin and a lower lux level gently prepare them for the end of the working day and a restful night's sleep, similar to sunset.
Flexibility with a system
The lighting was primarily implemented using the TECTON continuous-row lighting system, which has been in use at Hamilton for many years. ‘We have been relying on this system for around 20 years,’ says Sax. He particularly appreciates its high flexibility: ‘We have had numerous conversions in recent years. This has shown us time and again how much flexibility a continuous row solution offers, also in terms of technological aspects.’ And so TECTON tracks now run not only through the existing building, but also through all areas of the new building.
Overview in the BIM model
Each individual luminaire was transferred to the BIM model, which can be accessed by all trades involved, as electrical planner Daniel Poscher from Scherler AG describes: "This provides a clear, complete picture of the luminaires installed and how they relate to each other in the building. This makes coordination much easier.‘ He also considers it an advantage that Zumtobel offers 3D BIM data for numerous luminaires to download from its website. ’Not many companies do this, but it's a big advantage for us," says the electrical planner, speaking from experience.
Integrated lighting control
The 1,500 TECTON HCL luminaires are controlled via DALI-2. KNX provides centralised, comprehensive control and networking at floor level and is also used for HVAC and thus for the entire room automation system. To enable a smooth transition throughout the day, Daniel Poscher created a table with 25 colour temperature values per day for each season and assigned them to specific times. The DALI gateways fed with this data issue commands to change the lighting – coordinated with the time of day provided by the KNX weather station. To ensure that the lighting remains energy-efficient, there are 500 presence detectors and, where necessary, conventional push buttons.
Said. Done.
WE CARE ABOUT
When asked to sum up the project, those involved emphasise above all the excellent cooperation. ‘We have been working with Zumtobel Licht AG for a long time,’ says Daniel Poscher. ‘We have a very cooperative relationship and were also in close contact throughout the current project. That worked very well,’ he adds.
Achim Sax from Hamilton feels the same way: ‘The collaboration can be seen as a partnership. We have been able to develop over the years and realise exciting projects. And we have always discussed things on an equal footing.’
The Swiss trade magazine etrends also reports in detail on this project in its 1/25 issue.