Examples of Customised Fire Protection Door Operators
Sliding Window Fronts - for Ventilation / Smoke Evacuation In modern architecture it is often necessary to have sliding window fronts. Sometimes they need to be moved aside for ventilation or smoke extraction, e.g. in the ‚Pinakothek der Moderne‘ in Munich. A frequently occurring problem is the lack of space, which means the drive unit has to be installed outside and therefore must be water-proof. Furthermore the window and façade components usually are very heavy and the drive unit must always function reliably, even during high winds exerting high pressure on the façade.
Basic Diagram of Motorised Window Construction in the Pinakothek der Moderne in Munich
2. Level: Moving the window by an operator (see description below) Operator
Horizontal cross section 2. Level (motorised window) Operator
Window in closed position
1. Level: Moving the window by hand (only DICTATOR rails, wheels etc.) Window moved forward before being opened
Vertical cross section
Customer‘s Specification
In the case of the ‚Pinakothek der Moderne‘ in Munich the sliding windows must be opened for ventilation and during smoke alarm. The window elements weigh 400 kg each and must firstly be moved inwards (towards the room) and then to the side. The windows are track mounted with a high level guide rail. Mechanical locking is not possible, but the window fronts have to remain closed even with strong winds. In direct sunlight the windows can quickly become very hot.
Solution
The task was solved with a customized version of our DICTAMAT 4000 door operator with a 600 N force. The motor is suitable for temperatures up to 120 °C (60 min). The force is transferred by a chain. Electromagnets ensure the windows remain locked in the closed position. The magnet is automatically switched off by the N5 control system when the window opens or in the event of fire. In the case of power failure the control system continues to supply electricity to the magnet with a built-in battery back-up. The most difficult problem to overcome was the required mobility of the window and to prevent it becoming stuck after a strong gust of wind. This was solved with a custommade track, guide rail, wheel, and flexible window hanger with articulated lever. These were designed partly in AISI 316.
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