17/09/2024 06:44:20
Install Stacked Expansion Units
Warning
Stacked Expansion units must be ground mounted.
Do not attempt to install stacked units above ground on a bracket, or in any
configuration other than ground-mounted.
Note
Follow all Powerwall 3 guidance for choosing a
location to install Expansion units, clearance requirements,
and instructions to remove the units from packaging and transport them with the
Powerwall dolly.
-
Determine where the Expansion units and Powerwall 3 will be installed based on
the number of units:
NoteWhen installing the wall bracket shims:
- Do not install shims if the wall bracket is mounted directly to the wall
- Install shims if the wall bracket is fastened to an Expansion unit
Ground Slopes Away From Wall Ground Slopes Toward Wall -
Determine the height at which
the wall bracket will be mounted:
-
Safely shut the system
down:
-
To lift and transport the Expansion unit, follow all
instructions in STEP 2: Remove Powerwall 3 from Packaging and Transport Using the Powerwall Dolly to use the Powerwall dolly, noting where the two lift
handles are connected on the Expansion (X):
-
Using a drill and level, mount the Expansion unit bracket to the
selected wall. See Powerwall 3 Wall Bracket Anchoring Details for Wall-mounting or Ground-mounting on Approved Foundation for additional details on the type and number of fasteners
to use.
NoteThese bracket measurements are the same for both Expansion and Powerwall 3 units.WarningOnly install fasteners in the (4) slots on the horizontal bracket segments. Do not install fasteners on the vertical (center) segment, as these are not structural mounting holes.NoteThe mounting bracket shims included in the Expansion stacking kit are not used for the unit mounted directly to the wall. The shims are only required to secure the bracket when it is being mounted to the front of an Expansion unit.
- Confirm the leveling feet are screwed all the way in to the Expansion unit. This is required to ensure the unit can be adjusted once the remaining units in the stack have been installed.
- Move the dolly toward the wall, positioning the Expansion unit so that the mounting cleats are just above the flanges on the bracket.
-
Lower the Expansion unit until both the upper
and lower sets of cleats engage the flanges on the bracket.
CAUTIONConfirm the unit is fully seated on all four cleats before proceeding.NoteThe mounting bracket shims included in the Expansion stacking kit are not used for the unit mounted directly to the wall. The shims are only required to secure the bracket when it is being mounted to the front of an Expansion unit.
-
To install the fan front cover
in the open space at the top of the enclosure, first align the bottom of the
cover with the enclosure and push it into place. With the bottom of the cover
secured, push in the top of the cover, ensuring it snaps into place.
-
Install the (6X) fir tree plugs in the fastener holes on the top and sides of
the enclosure.
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Use an 11/16 inch (or 17 mm) wrench to adjust the leveling feet until the unit
is level. The unit should be within +/- 2 degrees in any direction.
NoteThe top of each foot must be visible above the threaded boss; do not unscrew the foot so far that the top is no longer visible.
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Mount another Expansion unit to the front of the
installed Expansion unit enclosure:
- Repeat step 12 for a third Expansion if present.
- Once all Expansion units have been installed, repeat step 12 to mount the Powerwall 3 to the front of the stack.
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Begin with STEP 6: Make Solar PV Connections to complete all Powerwall 3 wiring, finishing by installing the front cover.
NotePowerwall 3 must always be installed at the front of an Expansion unit stack. If the Powerwall 3 was previously installed, it must be uninstalled so that it can be moved to the front of the new stack.NoteAlternatively, another Expansion with the Wall-Mount kit (Tesla P/N 1978069-00-A) can be mounted to the front of the stack.
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Connect the Expansion unit to the Powerwall 3 (or to another Expansion unit):