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116 Maintenance
Cleaning the door air inlets (IP54)
1. Remove the fasteners at the top of the grating.
2. Lift the grating and pull it away from the door.
3. Remove the air filter mat.
4. Place the new filter mat in the grating the metal wire side facing the door.
5. Reinstall the grating in reverse order.
Cleaning the outlet (roof) filters (IP54)
The outlet (roof) filters in IP54 units can be accessed by pulling the gratings upwards.
Replacing the outlet (roof) filters (IP54)
1. Remove the front and back gratings of the fan cubicle by lifting them upwards
2. Remove the air filter mat.
3. Place the new filter mat in the grating.
4. Reinstall the grating in reverse order.
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