ecactus WH-SPHA3.6H-5.12kWh User Manual page 20

Step 9 : Fix expansion tube
Find the expansion screw from the inverter box accessory package
and hammer it into the pre- drilled hole so that its surface is flush
with the wall.
Step 10 ： Fix battery box and back plate
Rotate the back plate in place and spin the expansion pipe into the
locking back plate with self- tapping screws (note that the battery box is
fixed with the back plate). Replace the battery box and align the
expansion pipe with the backboard hole, and then spin the self- tapping
screws into it until the screw plane is pressed on the back plate.
How to fine-tune the battery box:
Item Name
1 Expansion screws
2 Tune screws
3 Fix screws
20
Torque Note
4 N·m Tune up and down
3 N·m Tune left and right
Tune front and back
3 N·m