8.8
Maintenance work
8.8.1
Filter mats
1
2
Fig. 8-3: Filter mats
[1]
Cooling air inlet
[2]
Switch cabinet cooling air inlet (only
speed-controlled system)
Replacement times for the filter pad
The operating modes and the quality of the suction
air (e.g. dust content) have a significant impact on
the service life of the filter pad.
The filter pad should be inspected for dust accu-
mulation at least weekly; daily if possible.
In these usage scenarios, shorter replacement in-
tervals are possible.
As soon as one of the filter pads shows a defect, it
must be replaced.
8.8.2
Switch cabinet inlet filter
1
2
Fig. 8-4: Switch cabinet inlet filter, air-cooled system
[1]
Cooling air inlet
[2]
Switch cabinet cooling air inlet (only
speed-controlled system)
Fig. 8-5: Louvred grille
Summary of Contents for L90 7.5A V4
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