Fronius Agilo 75.0 - Manual (Page 104)

102
Maintenance
Safety
Maintenance
guidelines To ensure that the inverter keeps working perfectly, the following maintenance activities
must be carried out every year:
-
To prevent defects occurring in the electronic components, check the inverter for dirt,
dust or moisture.
- Re-tighten the DC and AC cable terminals to the specified torque
- Check that the installed inverter software is up-to-date and update the software if nec-
essary
- Either in the Setup menu or using the Fronius Solar.Service software, run the main fan
test to test that the air supply is working properly.
Fronius offers an optional maintenance contract for the inverter that includes annual main-
tenance by a Fronius engineer.
More information can be found on the Fronius Homepage at
http://www.fronius.com.
Replacement of
components The following components should be replaced after 10 years:
-
main fan
- circulating fan (next to the power stage set)
- MENT PC board (switched mode power supply)
Replacement of components in accordance with the Fronius Agilo Service Manual; apply
to the relevant TechSupport for components.
Opening the in-
verter for mainte-
nance work When the inverter must be opened for maintenance work, carry out the following proce-
dures:
De-energise the AC and DC side of the inverter
Switch off the DC main switch
Wait for the capacitors to discharge (10 minutes)
Open the door and air inlet grilles
Remove covers and/or contact protection
If present, remove fuse for solar module grounding
WARNING! An electric shock can be fatal. Danger due to grid voltage and DC
voltage from solar modules.
-
The DC main switch is only to be used to de-energise the power stage set.
The connection compartment is still live when the DC main switch is switched
off.
- Work in the connection compartment must only be carried out by qualified
electricians.
- Maintenance and servicing in the power stage set of the inverter must only
be carried out by Fronius-trained service technicians.
WARNING! An electric shock can be fatal. Danger due to residual voltage in ca-
pacitors.
Wait for the capacitors to discharge. Discharge time is 10 minutes.
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