Preparing the shutter

Odours may escape from the ventilation channel.

If the installation position is wrong, the plastic shutter will not close leak-tight.

  1. Insert shutter at the top/to the right/to the left/to rear in the exhaust socket of the housing to fit the installation position. Ensure that the shutter closes entirely leak-tight.
  1. Before fitting housing, it is essential that the position of the shutter is checked and its function ensured.
  1. NOTE! Note also: ER-APB shut-off device, ER-AP shutter and ER-APB: Safety instructions for installation of the fire protection shut-off device.