Installation and Operation Manual
Page 130 of 156
[PVI-XXX.0-YY(-TL) - Rev:1.0]
Once the system has been disconnected and the inverter panels have been removed Figure 10-9
and Figure 16-5, in this case remove if necessary also panels on the other sides), check as indicated
in the Table 16-2
Figure 16-5: Panels to be removed to acces DC and AC Fuses.
Table 16-2: TABLE OF VISUAL AND SCREW CHECKS
To be checked and/or tightened
Check point
AC fuse box
Connection points
(visible by removing the AC panel of Figure 16-5)
DC fuse box
Connection points
(visible by removing the DC panel of Figure 16-5)
AC input bars
Connection points
Figure 5-6, Figure 5-11
DC input bars
Connection points
Figure 5-5, Figure 5-10
DC switches
Connection points
(visible by removing the DC panel of Figure 16-5)
To remove the panels it may be necessary to disconnect the wire of the earth connection.
Remember to reconnect this wire before reclosing every single panel!
The internal inspection of the modules can only be carried out by a specialist, suitably
trained technician.
The visual inspection also includes checking any points where there is an evident change in
colour compared to other similar points. It is important to check that there is no change in
colour over time at the anchorage points, around the screws and in the insulation. Any
nonuniform anomalous colouring indicates thermal stress and therefore possible functioning
problems. In such case, contact your dealer who will assess whether a replacement is needed.
Also check for any corroded spots.
If checks have been completed, replace the panels and the relative earth connections
correctly.
