Fronius Eco 27.0-3-S Installation Instruction page 6

- Tighten all grounding terminals (PE / GND), including free ones, to the torque specified in the Ope-
rating Instructions
- Do not overload cables
- Check cables for damage and verify that they are laid correctly
- Take note of the safety instructions, Operating Instructions and any local connection regulations
Using fastening screws, always screw the inverter firmly to the wall bracket to the torque specified in
the operating instructions.
Ensure that the fastening screws are tight before starting the inverter!
NOTE! Degree of protection IP 66 is only applicable if
- the inverter is permanently attached to the wall bracket with screws
- the cover for the data communication area is permanently attached to the inverter with screws.
Degree of protection IP 20 applies to the wall bracket with no inverter.
NOTE! The solar modules connected to the inverter must comply with the IEC 61730 Class A stan-
dard.
NOTE! When photovoltaic modules are exposed to light they supply current to the inverter.
NOTE!
- Ensure that the grid neutral conductor is grounded. This may not be the case for IT grids (insula-
ted grids with no grounding); it will then not be possible to use the inverter.
- In order to use the inverter, the neutral conductor must be connected.
A neutral conductor that is too small may adversely affect the grid power feed operation of the
inverter. The neutral conductor must therefore be the same size as the other live conductors.
NOTE! To avoid the risk of a fire, only replace faulty fuses with new ones of the same rating.
Observe the manufacturer's connection, installation and operating instructions at all times. To reduce the ha-
zard potential to a minimum, perform all installation and connection work carefully according to the instructions
and regulations.
Refer to the device Operating Instructions / Installation Instructions for the tightening torques to be used at the
relevant terminal connections.
Fronius manufac- Detailed, country-specific warranty terms are available on the internet:
turer's warranty
www.fronius.com/solar/warranty
To obtain the full warranty period for your newly installed Fronius inverter or storage sys-
tem, please register at: www.solarweb.com.
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