The EA-KN-230/300/400 chain actuator is the ideal solution for optimal, controlled ventilation, e.g. of winter gardens, and offers a high degree of comfort when opening window elements by remote control. Through a double row steel chain (inside the sheath) the actuator moves the window when opening and closing. An electrically powered gear motor is controlled by a cut-off device that allows the chain to be extended by 110, 200, 300 and 400 mm. The DIP switch allows to limit the stroke at different window openings and to create different opening widths.
Stroke limitation by DIP switch
Windows can be programmed to open and the device allows chain opening at 110, 200, 300 and 400 mm. When the window returns to start position, that is during closure, the stroke-end uses an electronic self regulating process on the basis of energy absorption to determine the position, so that no adjustments have to be made. The actuator is produced with the stroke-end for return set at around +1 cm (out by 1 cm). This allows the actuator to be assembled without power supply. The prerequisite is that the window is left closed after installation. Actuator and support bracket are installed without fixing screws. In this way the actuator can rotate and follow the chain path even with low windows.
Compact design suited for all building concepts
The EA-KN-230/300/400 chain actuator has a compact design. Therefore, it fits seamlessly into already existing building concepts. Optionally, the chain actuator can be installed as a synchronous actuator. In this case the operation of individual actuators is not possible.
EA-KN-230/300/400 at a glance:
- compact design
- easy to install bracket technology
- stroke length 110 mm, 200 mm, 300 mm and 400 mm (stroke limitation by DIP switch)
- suitable for different window openings
- ideal for daily ventilation
- optional: synchronous actuator
Under the Construction Products Regulations (CPR) it is a legal requirement to use only certified products for smoke ventilation. It is the responsibility of the installer to ensure installations meet the relevant standards. For more information see SCS Group’s Technical Bulletin.
