In the event of a fire, smoke would be removed from the building by a series of high- and low-level windows which are automatically opened to naturally vent the building and create a smoke-free layer above the floor.
Building 1000 consists of two parts, each with a large atrium and linked by a vast central atrium street Wintergarden.
To create a simple method of smoke extraction, SE Controls installed a series of actuators on low-level windows and roof lights in the buildings and high-level windows in the street atrium.
These actuators were linked to SE’s OSO control system, which is interfaced with the building-management system and fire alarms. In the event of a fire, windows are automatically opened. The OSO system uses the same LonWorks language as the BMS.
To create a seamless finish to the façade, the actuators for the low-level windows were designed to be concealed in the window transoms.
The system also provides natural ventilation for the street atrium, controlled by carbon-dioxide and temperature sensors.
The control system has a 42 h battery backup and includes an override so that fire fighters can open and close windows as required.
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