Operation and installation manual
Page 59 of 96
(PVI-STRINGCOMB (-S, -MC, -S-MC) - Rev:1.0)
10.1.1 Complete disconnection
Proceed according to the following steps and according to the instructions and
precautions given in the points referred to below (Ref. §9.3):
1) Switch off the inverter and disconnect it from the DC side (§9.3.11
excluding point (B)).
2) Open the cover.
3) Open the DC switch (§9.3.15), if present (model PVI-STRINGCOMB-S).
4) Remove the Plexiglas panel on positive side (§9.3.1) and disconnect the
positive strings as explained under paragraph §9.3.12.
5) Remove the Plexiglas panel on negative side (§9.3.1) and disconnect the
negative strings as explained under paragraph §9.3.13.
6) Before proceeding with the next step, make sure that the DC output wire
is not under voltage using a voltage meter (§9.3.11 point (B)).
7) Disconnect the + and – output wires from the respective bar (§9.3.11.1,
§9.3.11.2).
8) Loosen the relative cable gland and extract the wires and protect them
with adequate insulating protection.
9) Loosen the cable gland of the earth wire, then disconnect it and pull it out.
10) Loosen the cable gland of the communication wire, unscrew the single
wires from the Figure
9-5
terminal board and pull it out.
11) Repeat the same operations for any external sensor wires.
12) Reposition the Plexiglas panels, Figure 9-4, unscrew the supporting
screws indicated in Figure 9-2 and then refit the cover.
13) If the device is being scrapped, take the PVI-STRINGCOMB(-S) to an
authorised disposal centre.
