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www.bluesky-energy.eu
January 10, 2020/greenrock-heimspeicher_installations- & inbetriebnahmehandbuch_v02_en
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7.1
Connection of the battery stacks
WARNING
Before the battery stacks are connected to the Combiner Board, the stack voltage must be measured and
compared! If the voltages of the individual battery stacks deviate by more than 3 V (48 V systems), measures must
be taken.
Measures
The individual battery stacks must be brought to the same voltage with a charger suitable for batteries.
In this case, contact BlueSky Energy.
If the batteries are within the voltage limits described above, you can connect the battery stacks to the Combiner Board.
The GREENROCK Energy Storage systems already include the entire cabling and protection for the DC side. The system is a 48 V
safety extra-low voltage system. Each battery stack is individually fused with a 20 A gG fuse at the positive pole.
Before you start with the installation of the energy storage, you must ensure that all fuse isolators between the battery
stacks and the DC distributor (Combiner Board) are open!
The fuse isolators for the battery stacks are located under the cover of the Combiner Board!
7.1.1
Opening the cover of the Combiner Board
If the system is in operation, please read the chapter “Switching off the HOME ENERGY STORAGE” before opening the
Combiner Board cover!
After the GREENROCK Home Energy Storage has been switched off, the Combiner Board cover can be removed by loosening the 4
cover screws.