Title: +038=365.008-SS002._04-mcr WIPT Stengespjeld Mercor - Teknisk og operativ dokumentasjon.pdf
automatically – through operation of an axial actuator (axial actuators BELIMO of series BE, BLE without thermal tripping).automatically – through operation of an axial actuator (axial actuators BELIMO of series BE, BLE without thermal tripping).The fire dampers with actuators BELIMO of series BF / BLF, Edelweiss of series EXBF, actuators Joventa of series SFL or Gruner of series 229, 239 close in result of cutting off the current supply, in effect of the action of the return spring located in the actuator. Opening of the fire dampers occurs after applying the supply voltage to the actuator terminals or manually, by using a wrench. One should open the damper with a hexagonal wrench placed in the socket in a steady and slow way with precaution. Too rapid key motion may cause damage of the actuators internal mechanisms or of the current transmission set.