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Maintenance
Safety
General The inverter is designed so that it does not require additional maintenance. However, there
are a few points to keep in mind during operation to ensure that the inverter functions op-
timally.
Operation in
Dusty Environ-
ments
When operating the inverter in extremely
dusty environments:
Remove the fan cover and clean the integ-
rated fly screen as required
WARNING! An electric shock can be fatal. Danger from grid voltage and DC volt-
age from solar modules.
- The connection area should only be opened by a licensed electrician.
- The separate power stage set area should only be disconnected from the
connection area after first being disconnected from the grid power.
- The separate power stage set area should only be opened by Fronius-trained
service personnel.
Never work with live wires! Prior to all connection work, make sure that the AC
and DC wires are not charged.
The DC main switch is only used to switch off power to the power stage set. When
the DC main switch is turned off, the connection area is still energized.
These servicing instructions are for use by qualified personnel only. To reduce the
risk of electric shock, do not perform any servicing other than that specified in the
operating instructions.
WARNING! An electric shock can be fatal. Danger from residual voltage from ca-
pacitors.
You must wait until the capacitors have discharged. Discharge takes 5 minutes.
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