External cover

  1. Unpack the external shutter with external combination sensor and remove the outer piece. To release the outer piece’s locking hook, unlock (arrow) using a screwdriver.

Do not disconnect the sensor connection cable from the external combination sensor. It is connected to the fan, through the duct, while the housing is mounted.

If the external combination sensor is loose during installation, clamp it back into the recess in the tab on the external shutter.

  1. Fit supplied sealing strip centred in socket.