Disconnecting The Cables From The String Inverter; Isolating The String Inverter - Bosch BPT-S 3 Manuel De Service

English
Bosch Power Tec GmbH
We recommend that a photovoltaic system be
checked at regular intervals (e.g. 1x per year) and
that any necessary maintenance is then carried out.
For installation locations with high levels of dust and
contamination, the solar generator and the string
inverter can become heavily contaminated, requiring
that the heat sink be cleaned.
Please observe the following recommendations for
cleaning:
Suction clean the device

 Suitable cleaning materials for plastic, rubber and
aluminium are, for example, a damp cloth and
neutral cleaner
The display screen is very sensitive and easy to

scratch: Do not use brushes or sponges
Do not use a high-pressure cleaner, as this can

destroy seals and can damage the display screen.
7.2 Disconnecting the cables from the
string inverter
7.2.1

Isolating the string inverter

▶
Procedure
1. Set the service switch to 0
2. Wait until the system has shut down (i.e. until the
display and LED status indicator have gone out)
3. Disconnect the grid via the external safety
disconnector
4. If an external DC switch is included in the
installation, set the external DC switch to 0 (=
switched off).
■
The string inverter is isolated.
Maintenance and disassembly | 95
Bosch BPT-S 3 / 3.68 / 4 / 4.6 | Operating manual