SMA SUNNY CENTRAL Maintenance manual - Manual (Page 11)

SMA Solar Technology AG Maintaining the Sunny Central
Maintenance Manual SCWAR-WEN094020 11
3.4 Maintaining the air inlet filter
3.4.1 General Activities
Cleaning or replacing the filter pads in the air inlet filters
This section describes how to disassemble and clean the ventilation grids as well as how to replace
the corresponding air filter pads. Depending on the switch cabinet type and model, ventilation grids
which have filter pads must be maintained. The filter pads must be cleaned and replaced, if the degree
of pollution is too high. The Sunny Central 100 only has ventilation grids without air filter pads.
Disassembling and installing the ventilation grids with the appropriate filter pads
DANGER!
Death resulting from electric shock and burning upon touching the medium-
voltage grid's live components.
• Only work on the device when it is switched off and voltage-free.
1. Slightly lift the top part of the ventilation grid by using
a screwdriver and pull the grid together with the top
part forward. The frame of the ventilation grids is
securely attached to the switch cabinet's door and
cannot be removed.
2. Remove the filter pads. The filter pad is in a cutout in
the top part of the ventilation grid.
3. If the filter pad needs to be replaced, you can order it
from SMA: Article number 65-102011.
4. Insert the filter pad. During mounting, the white side
must point outwards and the bluish side to the inside
of the switch cabinet.
Smaller filter pads
There is no separate article number for the small filter pads which are installed in the older
version of the Sunny Central 500; they have to be cut out from the large filter pads.