Sonnen sonnenBatterie 10, Installation Instructions Manual, Page: 49 / 100

Installing the extension cabinet (optional) | 7
KD-557 | 1000241 | EN | 02 49 / 100
7 Installing the extension cabinet (optional)
NOTICE
Damage to the battery modules when installing the extension cabinet after
initial commissioning
If an extension cabinet is added to the storage system after the system has
already been commissioned, the battery modules may be damaged. Therefore:
„
Observe the information in section Subsequent extension of storage capa-
city [P. 48] if you are retrofitting an extension cabinet to the storage sys-
tem.
• One extension cabinet can be added to the storage system. An extension set, housing
set, mounting frame and the desired number of battery modules are required for this
(for list of components, see Scope of delivery [P. 17]).
• The nominal storage capacity of the storage system can be extended from 11 kWh (four
battery modules) to up to 27.5 kWh (total of 10 battery modules).
7.1 Mounting the extension cabinet
• The extension cabinet is essentially mounted similarly to the storage system (see In-
stalling the storage system [P. 22]).
• Differences in mounting are described in the following sections.
7.1.1 Selecting the installation location
NOTICE
Insufficient load-bearing capacity of wall for mounting
Damage to storage system and surrounding area!
The wall selected for the installation of the storage system and extension cab-
inet must be able to support a weight of 850 kg for each unit.
„
Ensure that the mounting material and the wall have the required load-bear-
ing capacity. Ensure that the correct distances between the storage system
and extension cabinet are observed.
„
Use all of the mounting points on the mounting frame of the storage system
and the extension cabinet.
• The extension cabinet can be mounted to the left or right of the storage system.
„
Maintain the minimum distances for the storage system and for the extension cabinet
(see Observing minimum distances [P. 22]). The distance
on the right of the extension
cabinet to other objects (including the storage system) can be reduced to 10 cm .
„
Do not select a distance that is too great between the storage system and extension
cabinet.
The supplied double battery cable (length: 5 m) must be routed from the
power module of the storage system through the cable entry points to the bat-
tery coupling within the extension cabinet and cannot be extended.