Remodelling at the Hilton Munich Airport

Challenge

The Hilton Munich Airport, a 5-star hotel with 389 rooms, spa, conference and restaurant areas, was to be modernised after more than 20 years of operation. Following the expansion by 162 additional rooms in 2017, the existing building from the 1990s was now due for refurbishment. A major challenge was to carry out the refurbishment while the hotel remained open - all areas had to remain fully usable for guests.

Moser & Partner Ingenieurbüro (MPI) played a central role in this. The areas of responsibility included basic electrical engineering, concept development, Europe-wide tendering and electrical engineering supervision. The modernisation of the power supply, lighting systems and safety systems proved to be particularly challenging in order to meet the high demands of hotel operations.

Old cables and distributors from the 1990s, most of which were permanently installed and technically outdated, had to be adapted for operation. In many cases, it was necessary to wire through necessary escape routes due to the already installed cable routes. This could only be realised with many additional fire protection services such as fire protection ceilings or Promat fire protection ducts.

Gear system: The project required a high degree of coordination and seamless intermeshing of all trades and work steps.

Solution

To secure the energy supply, two new low-voltage sub-main distribution boards were gradually put into operation, while the old risers were gradually dismantled. Centralised distribution takes place via two main distribution boards (GHV) in the east and west wings.

The emergency lighting was also completely renewed. For each wing, a small Sibel control centre in an E30 housing with a battery capacity in accordance with the German Accommodation Act (8 hours) was installed for each floor. LED emergency luminaires and escape sign luminaires with individual luminaire monitoring switch on automatically in the event of a power failure or fire. For optimum monitoring, the fire alarm system was modernised, and all detectors were converted to loop technology. Additional detectors in the suspended ceilings and flashing lights in corridors and barrier-free rooms meet the latest fire safety requirements.

The voice alarm system and IT cabling were also upgraded as part of the modernisation. The wall loudspeakers in the corridors were replaced by modern ceiling loudspeakers, while new A/B loudspeakers were installed in the rooms. One E30 terminal box was installed per floor and wing, which is connected to the PA centre.

To optimise the network infrastructure, each floor received an IT floor distributor, connected to the main server via fibre optic cables. Each room now has RJ-45 connections for TV, minibar, WLAN and a spare line, providing an improved network connection.

The project required a high degree of coordination and the seamless integration of all trades and work steps.

The process, which lasted more than four years, involved detailed planning, regular reviews of the work and strict control of the time and cost plans.

Thanks to intensive communication and close cooperation with the client, the project was successfully completed and realised in line with expectations.