Tesla Powerwall 2 User manual
Powerwall 2 Stack Kit Installation Manual
For the latest Powerwall installation documents in all supported languages, visit:
www.tesla.com/support/powerwall.
To secure the full 10-year product warranty, Powerwall must be registered by
completing the commissioning process and sending system information to Tesla.
Warning: Read this entire document before installing or using Powerwall. Failure to
do so or to follow any of the instructions or warnings in this document can result in
electrical shock, serious injury, or death, or can damage Powerwall, potentially
rendering it inoperable.
PRODUCT SPECIFICATIONS
All specifications and descriptions contained in this document are verified to be
accurate at the time of printing. However, because continuous improvement is a goal
at Tesla, we reserve the right to make product modifications at any time.
The images provided in this document are for demonstration purposes only.
Depending on product version and market region, details may appear slightly
different.
ERRORS OR OMISSIONS
To communicate any inaccuracies or omissions in this manual, send an email to:
energy-pub[email protected].
ELECTRONIC DEVICE: DO NOT THROW AWAY
Proper disposal of batteries is required. Refer to local codes for disposal
requirements.
MADE IN THE USA
©2017 TESLA, INC. All rights reserved.
All information in this document is subject to copyright and other intellectual property rights
of Tesla, Inc. and its licensors. This material may not be modified, reproduced or copied, in
whole or in part, without the prior written permission of Tesla, Inc. and its licensors. Additional
information is available upon request. The following are trademarks or registered trademarks
of Tesla, Inc. in the United States and other countries:
TESLA
TESLA MOTORS
POWERWALL
All other trademarks contained in this document are the property of their respective owners
and their use herein does not imply sponsorship or endorsement of their products or services.
The unauthorized use of any trademark displayed in this document or on the product is
strictly prohibited.
1
TABLE OF CONTENTS
Powerwall Stack Kit Contents ...................................................................................................................... 2
Required Tools ................................................................................................................................................... 2
Site Requirements............................................................................................................................................. 3
Installation Instructions...................................................................................................................................4
Step 1. Prepare for Installation ...........................................................................................................................................................4
Step 2: Choose a Wiring Option .......................................................................................................................................................6
Step 3: Prepare for Concealed Wiring...........................................................................................................................................6
Step 4. Join the Powerwall Units.................................................................................................................................................... 10
Step 5. Wire the Powerwall Units....................................................................................................................................................17
Step 6. Close the Wiring Compartments and Replace the Covers...............................................................................19
Step 7. Turn On and Commission the System ........................................................................................................................22
Revision Log........................................................................................................................23
2 Powerwall Stack Kit Installation Manual
Powerwall Stack Kit Contents
•(2) Side clips
•(1) Top cover
•(1) Conduit nipple
•(2) Conduit insulation bushings
•(2) Conduit sealing O-rings
•(1) Bridge piece
•(1) 5-conductor communication cable
•(1) Wiring interface cover
•(4) Magnetic camshaft caps
•(1) 6 mm Allen wrench
•(1) Drill guide (two pieces)
Required Tools
•Personal protective equipment (safety glasses, gloves, protective footwear)
•Drill and 6 mm (1/4-inch) drill bit (for drilling pilot hole in Powerwall chassis)
•35 mm (1-3/8 inch) hole saw (for drilling conduit hole in Powerwall chassis)
•Small metal file (for removing burrs from Powerwall chassis sheet metal)
•Rubber mallet or small hammer and wood block (for seating side clips in Powerwall)
•Wire strippers/cutters for 1.5 to 8 mm2(24 to 8 AWG) wires
•Small grease applicator (wooden craft stick or cotton swab)
•Water-resistant heavy-duty grease (Dow Corning Molykote BR-2 Plus High
Performance Grease or equivalent, for preventing corrosion on side clips)
•Installation tools (level, tape measure, pencil, flashlight)
3
Site Requirements
Stacked multi-Powerwall systems must be floor-mounted and must be anchored to an
adjacent wall. The wall must be capable of supporting the lateral load of the Powerwall stack.
A maximum number of 3 floor-mounted Powerwall units may be joined together with two
Powerwall Stack Kits. For systems with more than 3 Powerwalls, separate groups of 3 units
should be assembled, with each group of 3 attached to a wall.
For complete Powerwall Mechanical Specifications and Site Requirements, see the Powerwall 2
AC Installation Manual.
Figure 1: Dimensions for 2-unit and 3-unit Powerwall Stacks
4 Powerwall Stack Kit Installation Manual
Installation Instructions
These instructions assume that at least one Powerwall has already been installed at the site
and that additional Powerwall units are being added. For complete instructions on installing
Powerwall, see the Powerwall 2 AC Installation Manual.
Step 1. Prepare for Installation
1. Turn off the first (previously installed) Powerwall by setting its On/Off switch to the OFF
position.
Figure 2: Switching Powerwall Off
2. Turn off the AC circuit breaker for the Powerwall.
3. Ensure that the second Powerwall is turned off by verifying that its On/Off switch is set to
the OFF position.
4. Remove both side covers from each Powerwall to be joined:
•On the first (previously installed) Powerwall, it may be necessary to remove the small
plastic insert at the bottom of the covers to help with removal.
Figure 3: Removing the Bottom Insert
5
•For the right (LED) side covers, do not disconnect the switch and LED leads. Turn the
cover to one side and rest it against the Powerwall chassis.
Figure 4: Removing Powerwall Side Covers
5. Using a T20 Torx bit (provided with each Powerwall unit), remove the wiring compartment
covers from each Powerwall.
Figure 5: Removing Powerwall Wiring Compartment Covers
6 Powerwall Stack Kit Installation Manual
Step 2: Choose a Wiring Option
In multi-Powerwall systems, communication wiring is daisy-chained between Powerwall units.
Power wiring is direct (home run) from each Powerwall to a dedicated circuit breaker in the
electrical panel. Wiring between Powerwalls can be concealed, or run externally.
Concealed Wiring
For concealed wiring, a hole is drilled from the front of the first Powerwall into its wiring
compartment and wires are run directly into it from the back port of the second Powerwall. To
use this wiring method, proceed to Step 3, “Prepare for Concealed Wiring.”
External Wiring
For external wiring, wires are run through conduit or raceway that spans the wiring
compartment ports on the side of each Powerwall. To use this wiring method, skip to Step 4,
“Join the Powerwall Units.”
Step 3: Prepare for Concealed Wiring
NOTE: If you are running wires between the wiring compartments through external conduit,
skip to Step 4, “Join the Powerwall Units.”
1. Disconnect all wiring from the wiring compartment of the first Powerwall.
2. Locate the wiring interface cover and peel back the film to expose the adhesive on the
cover gasket. With the gasket facing inward, place the cover over the interface board at the
back of the wiring compartment. The cover is intended to protect the circuit board and its
components from metal shavings while drilling into the wiring compartment.
Figure 6: Placing the Wiring Interface Cover in the Wiring Compartment
7
3. Attach the included drill guide to the front of the first Powerwall by bracing the inside half
of the guide against the bottom of its wiring compartment.
Figure 7: Attaching the Inside Half of the Drill Guide
4. Clip the outside half of the drill guide to the inside half so that the guide engages the hem of
the Powerwall enclosure.
Figure 8: Attaching the Outside Half of the Drill Guide
8 Powerwall Stack Kit Installation Manual
5. While holding the drill guide to make sure it conforms to the edge of the Powerwall chassis,
drill a 6 mm (1/4-inch) pilot hole using the small hole in the drill guide.
Figure 9: Drilling the Pilot Hole
6. Remove the drill guide.
7. Drill the full-size 35 mm (1-3/8 in) hole with a hole saw, using the pilot hole as a guide.
Figure 10: Drilling the Conduit Hole
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