SMA SWR 850 - Manual (Page 6)

GB
The following instructions for
installation will help you to
commission the Sunny Boy
850. They do not replace the
Sunny Boy 850 Manual. You
will find a complete descrip-
tion of all functions as well as
information on communica-
tion equipment and all defi-
nable parameters in the
Sunny Boy 850 Technical
Description.
Please read first
Sunny Boy 850
Quick Installation Guide
Sunny Boy 850 Technical Data
Betrieb
Operation
Erdschluss
Earth Fault
Störung
Failure
Photovoltaik-Stringwechselrichter
Photovoltaic
string inver ter
SWR 850
Input voltage range VPV: 125 V - 250 V
Max. input current IPVmax: 8,0 A
Nominal output power PACnom: 850 W
Output voltage range VAC: 196 V - 253 V
Frequency range fAC: 49.8 - 50.2 Hz
Weight: approx. 18 kg
To commission the Sunny Boy please make sure:
1. The Sunny Boy may only be commissioned by qualified
personnel.
2. Follow the order below when establishing the electrical
connection!
3. Check the open circuit voltage of the PV strings. Voltages
above 250 V can cause non-repairable damage!
4. Check the Sunny Boy for any transport damage.
5. Do not open the Sunny Boy when it is connected to the
grid.
6. Never disconnect the Sunny Boy from the PV voltage be-
fore the AC voltage has been disconnected (remove the
fuse in the house distribution). Pulling the Multi-Contact
plug connectors while under load results in an electric
arc in the connector which consequently has to be re-
placed.
Order for commissioning:
1. Disconnect the AC circuit the Sunny Boy is connected to
(open the circuit breaker in the AC house distribution).
2. Install the Sunny Boy (see page 2).
3. Check the PV open circuit voltage and the connection of
the PV strings.
4. Assemble the AC plug (see page 3).
5. Connect the AC plug.
6. Connect the AC voltage
(close the house distribution circuit breaker).