MANUAL NAME: LBB051100A Residential Energy Storage Box User Manual
REV NO.
.: V1.2
Date: November 4, 2019
ZHONGNENG TECHNOLOGY (HANGZHOU) CO., LTD
22
Before checking for faults, all cable connections must be checked for consistency with wiring
diagram 10.
7.2
Replace the Battery system
1.
Open the cabinet.
2.
Turn off the inverter power supply and battery switch, including D.C. Isolating switch.
3.
Disconnect the AC power supply connected to the inverter.
4.
Unplug the power cable and disconnect the battery from the inverter.
5.
Unplug the communication cable.
6.
Loosen the angle bracket to fix the battery and move the battery system to another open and safe
place.
7.
Lay the battery flat and loosen the screws that secure the two battery systems.
8.
Put the problem battery system into the packing box
9.
Contact ZNTECH or an Authorized Reseller in the Territory.
Note
Pay attention to electrical protection for unplugged communications and cables – use temporary
terminal blocks or insulating tape to insulate all wire ends as they are disconnected. Ensure wires
do not touch each other or any conductive surfaces in order to avoid short-circuits.
7.3
Battery Maintenance
Warning:
Battery maintenance must be performed by qualified and authorized personnel.
Some maintenance items must be shut down at the beginning.
Make sure the system voltage level is the same after powering on the system.
Voltage check
Regular maintenance: Check the voltage of the battery system through the monitoring system. Check the
system for abnormal voltages. For example: the voltage of a single battery is abnormally high or low.
SOC check
Regular maintenance: Check the SOC of the battery system through the monitoring system and check whether
the SOC of the battery cabinet is normal.
Check the cables
Regular maintenance: visually inspect all cables of the battery system. Check whether the cables are broken,
aged, and/or loose.
