● There are 25 desiccant bags, four bags for each battery rack in the battery cabin and
one bag for the control unit cabin.
● After cables are connected, do not remove the desiccants before power-on.
● If the ESS has been stored for more than six months, replace them with new ones
(Montmorillonite desiccant, 500 g).
Step 2 Press and open the battery pack cover on the right side.
Figure 4-10 Opening the battery pack cover
Step 3 Wear insulation gloves and install copper bars between battery packs.
When installing copper bar C, keep away from communications cables and fan
power cables of battery packs to prevent cables from being squeezed.
● Use the copper bars delivered with the ESS. Do not use copper bars from ESSs
of dierent models.
● When installing a nut, manually insert the nut into the screw plate, and then
use a socket wrench to completely secure the nut in place. This prevents the
screw thread from being stuck or stripped due to the deviation of the nut
position.
● Pre-install nuts according to the recommended torque of 27 N·m.
● Verify the torque of the installed nuts using a torque wrench set to 27 N·m.
● Mark the nuts whose torque has been
veried using a marker.
● Use an extension rod for the torque wrench.
Three types of copper bars are included with the equipment and are identied by the
silkscreens A, B, and C printed on the front.
LUNA2000-2.0MWH Series Smart String ESS
User Manual 4 Installation
Issue 08 (2022-11-15) Copyright © Huawei Technologies Co., Ltd. 105
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