Sonnen sonnenBatterie 10, Installation Instructions Manual, Page: 75 / 100

sonnenProtect 4000 (optional) | 9
KD-557 | 1000241 | EN | 02 75 / 100
3. Check backup power supply
Backup operation works properly when the consumer connected to the backup circuit is
receiving electrical energy.
If the backup operation does not work:
1. Check the electrical wiring (see Connecting the sonnenProtect [P. 67]).,
2. Check if there is a malfunction which is mentioned in the Troubleshooting [P. 84]
section and follow the suggestions for rectification.
3. Contact the sonnen service team if the problem cannot be resolved.
9.8 Decommissioning the sonnenProtect
Switching off the sonnenProtect
To switch off the sonnenProtect manually, proceed as follows: In order to be able to work
on the sonnenProtect safely it must be disconnected from the power supply (see next sec-
tion).
„
Disconnect the storage system from the power supply (see Switching the storage sys-
tem off to electrically isolate it [P. 83]).
Disconnecting the sonnenProtect from the power supply
1. Disconnect the storage system from the power supply (see Switching the storage sys-
tem off to electrically isolate it [P. 83]).
2. Switch off the miniature circuit breaker in the mains line for the sonnenProtect.
3. Take steps to ensure that these switches cannot be switched on again.
4. Carefully check that there is no voltage inside the sonnenProtect.