SMA SUNNY CENTRAL Maintenance manual - Manual (Page 14)

Maintaining the Sunny Central SMA Solar Technology AG
14 SCWAR-WEN094020 Maintenance Manual
3.4.5 Sunny Central 500HE / 560HE / 400HE-11 / 500HE-11 /
630HE-11
Depending on the design, the switch cabinet of the SC 500HE is equipped with two small air inlet
filters (A) and six large air inlet filters (B) or only eight large air inlet filters (B). Only in this model, the
switch cabinet of the SC 560HE is equipped with eight large air inlet filters.
3.5 Cleaning the insect guard
Cleaning the insect guards at the air inlets and outlets
This section describes how to clean the insect guards at the air inlets and outlets.
Depending on the switch cabinet type and model, the insect guards must be cleaned in the roof and
plinth area, in the doors of the inverter cabinets and back sides of the doors. The air for cooling the
power units is drawn through and blown out through these insect guards.
The guards can be cleaned using a paintbrush, or handheld brush or by vacuuming, or applying
pressurized air.
Cleaning fine guards using pressurized air is prohibited. They are designed thinner and are used for
finger protection. Such protective grids are installed on the rear of the switch cabinets.
Exchanging the protective grids
Exchanging the protective grids is only necessary in case of damage.
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.