Construction of air conditioning and ventilation systems serving the technical rooms, shelters and bypass of the Frejus road tunnel, approximately 12.9 km long and joining Italy and France from Bardonecchia (TO) to Modane.
The main work involves:
- construction of 4 technological centers producing refrigerated water;
- distribution of refrigerated water and air channeling in the tunnel;
- construction of 4 ventilation centers to ensure that air circulates in the various safety rooms in the tunnel;
- construction of cooling and ventilation systems serving the MV, Tunnel and ups cabins.