40 000 square metres on 36 floors
That was custom work: In the Swiss Prime Tower, a project of the Olten real estate company Swiss Prime, 40 000 square metres of floor space, plus neighbouring buildings, had to be supplied with fresh air. Alpiq InTec installed a ventilation system that feeds and extracts fresh air to 36 floors. Furthermore, Alpiq InTec installed an ingenious system that in the event of a fire keeps the escape routes free of smoke. Because of the 126 metre height of the tower, the ventilation is divided into two zones. Four air conditioning units in the basement supply the floors 1 to 17; four more on the top floor the floors 18 to 36.
Extraordinary routine The installation of the system in the Swiss Prime Tower and the neighbouring buildings was routine work for Alpiq InTec, even though it was an extraordinary routine. According to the Project Manager Quoc Minh Ly, the challenge was far more in the planning and the supervision. Also demanding was the planning and installation of a pressure ventilation system that in the event of a fire keeps the escape stairwells free of smoke.