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Smoke Extraction and Ventilation
Smoke Ventilation Systems
1. Reliable smoke ventilation systems for emergency cases. This system safes human lives. The faster smoke finds a way out, the faster the persons inside the building can rescue themselves and the more successful the rescue forces can be. AUMÜLLER ferralux® guarantees safety in staircases and elevator shafts, in office buildings as well as in airports and class rooms with efficient control units, drives and natural smoke and heat exhaust systems (NSHEV).
2. Electric window openers for SHEV and natural ventilation Window drives which in the event of fire reliably open SHEV windows save human lives. And if there is no fire, they ensure adequate day-by-day ventilation, providing pleasant comfort due to controlled natural ventilation. That protects the environment and also reduces energy costs. The AUMÜLLER product range offers the adequate drive solution for every SHEV window: For surface mounting on the main or side closing edge of casement or frame profiles, as well as for concealed integration into the profile. Elegant design, precision processing and convenient functionality enable the optimum integration into modern overall architectural design concepts. Where others reach its limits, we still provide special solutions: In the staircase and in the lift shaft, in the office building as well as in airports or classrooms.
Chain Drive
Chain drives from AUMÜLLER have a slim and attractive, robust housing, which encloses the microprocessor-controlled electronics, the aluminium motor gearbox unit and the chain box. The stainless steel chains are of a basically “rigid-back” design. It caves on in itself in one direction to retract into the housing. In the other direction, the so-called “rigid-back position”, they can be subjected to pressure when extending. The pressure forces depend on the size and shape of the chain links and the stroke length. Chain drives therefore generally have different pulling and pushing forces. Drives with long strokes are used mainly for tensile loads.
The integrated microprocessor regulates the drive force by means of a electronic positioning encoder in relation to the stroke length. The soft-start and soft-stop both protect the window drive against overload, and the opening casement as well as the attachment elements against premature wear. The synchronous operation of several window drives are possible, as well as various customer- and object-specific configurations.
When installing at the main closing edge, the chain describes a chord to the arch of the sash during the opening process. The casement height therefore depends on the profile geometry, the opening direction and the stroke. Rigid- backed side bow roller chains are used to open casements of low heights as wide as possible. Chain drives without side bow chains are swivel-mounted at the brackets. For installation at the side closing edge of bottom-hung windows, the chain drives are mounted to the chain outlet like a drawbridge.
