EFD

Shutter damper with spring-return actuators (24V)Shutter damper EFD is a shut-off damper. The damper is provided with 24 V motors with spring-return actuators. EFD is manufactured to leakage performance class 3 according to EN 1751:1998 Annex C.2. Outdoor/exhaust air damper has the function to prevent the hot water battery from freezing and also prevent the cold air from cooling downthe building if the unit stops. DesignThe EFD multi-leaf damper comprises a number of opposed blades, swivelling on nylon bearings in a sheet metal framework. The blades are connected via a system of linkages (protected) on the outside of the frame. Maximum air temperature is 100°C.