LG ESS Home 8 User manual

Energy Storage System
Due to our policy of continuous product innovation, some specications may change without notication.
©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
Model
LG ESS Home 8 (RBA008K0A00)
Home 8 (RA768K16A11)
Smart Energy Box (REA200AP0)
USER MANUAL
http://www.lg.com/us/ess
Copyright © 2022 LGEUS All Rights Reserved.
Rev.B 08/09/2022
*MFL71879301*
Please read this manual carefully before operating and retain it for future reference.

2Due to our policy of continuous product innovation, some specications may change without notication.
©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
PROPRIETARY DATA NOTICE
This document, as well as all reports, illustrations, data, information, and
other materials, are the property of LG Electronics U.S.A., Inc., and are
disclosed by LG Electronics U.S.A., Inc. only in condence.
Do not throw away, destroy, or lose this manual.
Please read carefully and store in a safe place for future reference.
Content familiarity is required for proper installation.
The instructions included in this manual must be followed to prevent product malfunction, property damage, injury, or death to the
user or other people. Incorrect operation due to ignoring any instructions will cause harm or damage. The level of seriousness is
described by the summary list of Important Safety Instruction.
For continual product development, LG Electronics U.S.A., Inc. reserves the right to change specications without notice.
© LG Electronics U.S.A., Inc.

Getting Started
3
Due to our policy of continuous product innovation, some specications may change without notication.
©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
Important Safety Instructions
IMPORTANT: This product should not be used for any purpose other than the purpose
described in the installation manual.
SAVE THESE INSTRUCTIONS : This manual contains important instructions for LG
ESS Home 8 (RBA008K0A00) consisting of PCS (RA768K00A10), Battery Module
(BPLG004HBG1), and SE Box (REA200AP0) that shall be followed during the installation
and maintenance of Energy Storage System (ESS).
The LG ESS Home 8 has been designed and tested to meet applicable North America
and International safety standards. As with any electrical and electronic devices, safety
precautions must be observed during the installation and operation of the LG ESS Home 8
to reduce the risk of personal injury and to ensure safe installation.
Installation, commissioning, service, and maintenance of the LG ESS Home 8 must be
performed only by trained service providers who are licensed and/or who meet the
applicable state, local jurisdiction regulations, follow the instructions in this manual, and
using personal protective equipment (PPE). All transport or handling of the LG ESS Home
8 product must be done in accordance with local safety standards.
Before starting the installation or commissioning of the LG ESS Home 8, read through the
entire manual and take note of all precautions.
All U.S. and Canada electrical installations must be done in accordance with local codes
and the National Electric Code (NEC) ANSI/NFPA 70 or the Canadian Electrical Code CSA
C22.1.
In Canada, the installation and wiring methods used must comply with parts I and II of the
Canadian Electric Code, and local AHJ inspector requirements. When required by Part 1 of
the Canadian Electrical Code, system grounding is the responsibility of the installer.
LG ESS system is not intended for use as a primary or backup power source for life-support
systems, other medical equipment, or any other use where product failure could lead to
injury to persons or loss of life or catastrophic property damage. LG disclaims any and all
liability arising out of any such use of the system. Further, LG reserves the right to refuse to
service any system used for these purposes and disclaims any and all liability arising out of
LG’s service or refusal to service systems in such circumstances.
Getting Started

Getting Started
4Due to our policy of continuous product innovation, some specications may change without notication.
©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
DANGER
Indicates a hazardous situation that will result
in death or serious injury if the instruction is not
followed.
yDo not open the door. There are no user serviceable parts inside. Service may be
performed only by trained service provider.
yRisk of electric shock from energy stored in capacitor. Do not remove the door until 10
minutes after disconnecting all sources when service needed.
yElectric shock hazard. Do not touch uninsulated wires when the product cover is removed.
yDo not disconnect, disassemble, or repair to avoid injuries, electric shock or burns.
yThere is a high possibility of electric shock or serious burns due to the high voltages in
the ESS.
yThe AC cables are high voltage. Risk of death or serious injury due to electric shock.
yThis product poses potential danger such as death or serious injury by re, high voltages,
or explosion if appropriate precautions are not read, fully understood, and followed.
yDo not place or install ammable or potentially explosive objects near the product or in
explosive atmospheres.
yDo not charge or discharge arbitrarily. It may lead to fault, electric shock, or burns.
yDo not damage the unit in any manner, such as by dropping, deforming, impacting,
cutting, or spearing with a sharp object. It may cause electrolyte leakage or re.
yBreakdown of the unit may cause electrolyte leakage or ammable gas generation.
yIf electrolytes leak, avoid contact with eyes, skin, or clothes. In event of accidental contact,
ush with water and seek medical help immediately.
yDo not place near open ame or incinerate. It may lead to re or explosion.
yKeep the unit away from moisture or liquid. Do not touch or use the product if liquids
have been spilled on it.
yKeep out of reach of children or animals.
yElectrical installations must be done in accordance with local standards, national electrical
safety standards, and the manufacturer's instructions.
yThe battery system is a bidirectional source of voltage. The battery circuit breaker and
inverter must both be off before working in the wiring box.
yDisconnect each circuit individually before servicing. Both AC and DC voltage sources are
terminated inside this equipment.
yDo not dispose of batteries in a re. The batteries may explode.
yDo not open or assemble while product is working.

Getting Started
5
Due to our policy of continuous product innovation, some specications may change without notication.
©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
WARNING
Indicates a potentially dangerous situation.
Death or serious injury may result if
appropriate precautions are not taken.
yA potentially hazardous circumstance such as excessive heat or electrolyte mist may
occur due to improper operating conditions, damage, misuse and/or abuse.
yThe contents included in this box are the ESS and its accessories. The total weight is very
heavy. Serious injury may occur due to the weight of the package containing the ESS
and accessories. Therefore, special care must be taken in handling. Make sure to use the
handle lift to deliver and install the package.
yDo not open or damage batteries. Released electrolyte is harmful to the skin and eyes. It
may be toxic.
yDo not place heavy objects on this product. It may cause deformation or fracture.
yDo not place any kind of objects on top of the product during operation.
yAll work on the ESS must be carried out by trained service providers only.
yElectrical installations must be done in accordance with the local and national electrical
safety standards.
yWear rubber gloves and protective clothing (including protective glasses and boots) when
working on the ESS.
yTo reduce the risk of re, do not connect to an AC load center (circuit breaker panel) with
multiwire branch circuits connected.

Getting Started
6Due to our policy of continuous product innovation, some specications may change without notication.
©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
CAUTION
Indicates a situation where damage or injury
may occur. If it is not avoided, minor injury and/
or damage to property may result.
yBefore testing electrical parts inside the system, there is a minimum of a 10 minute
standby period to completely discharge the system.
yDo not use any damaged, cracked, or frayed electrical cables or connectors. Protect
the electrical cables from physical or mechanical abuse, such as being twisted, kinked,
pinched, closed in a door, or stepped on. Periodically examine the electrical cables of
your product. If the appearance indicates damage or deterioration, discontinue use of
this product and have the cables replaced with an exact replacement part by a qualied
personnel.
yEnsure that you connect the earth ground wire to prevent possible electric shock. Do not
try to ground the product by connecting it to telephone wires, lightning rods, or gas pipes.
yDo not put the product or components in water or liquid.
yMake sure that there are no water sources, such as faucets or sprinklers, near the
installation site.
yDo not block any ventilation openings. Ensure reliable operation of the product and
protect it from overheating. Do not block any openings by placing objects on this product.
yThe metal enclosure may heat to a high temperature during operation.
yThe product must be disposed of according to local regulations.
yIf the ESS is not operated for a long time, the battery may be overdischarged.
yDo not step on the product or the product package. The product may be damaged.
yBatteries may present a risk of electrical shock and high short-circuit current. The
following precautions should be observed when working on the ESS system include:
a) Remove watches, rings, and other metal objects.
b) Use tools with insulated handles.
c) Wear rubber gloves, boots, and glasses.
d) Do not lay tools or metal parts on top of the system.
yIn the event of fault, the system must not be restarted. Product maintenance and repairs
must be performed by trained service providers.
yIf a system fault occurs immediately after starting the system, check the error code on
the Smart Energy Box (SE Box) display and follow the solution described in the manual.

Getting Started
7
Due to our policy of continuous product innovation, some specications may change without notication.
©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
INFO
Indicates a risk of possible damage to the product.
yThis product is intended for residential use only and is not intended for use in industrial
Purposes.
yThe System consists of Home 8 and SE Box. They must be installed together and it will
not work when installing unauthorized components to the system.
yThe unit is designed to feed power to the public grid only. Do not connect the unit to a
generator as connecting the power to external devices could result in serious damage to
the equipment.
yLG ESS Home 8 performs best when it is connected to the internet and registered
through the ThinQ service, so that the rmware may be remotely updated periodically.
yFor the latest ESS documents, visit:
- Warranty : https://www.lg.com/us/ess/warranty
- Installation Manual : https://www.lg.com/us/ess/Installationmanual
- User Manual : https://www.lg.com/us/ess/usermanual
- Quick Installation Guide : https://www.lg.com/us/ess/quickstart
yIf the S/W version is not up to date during installation, update the S/W using a FAT32
formatted USB storage device. When the SE Box is connected to Ethernet through a
LAN cable after normal operation, it is automatically updated to the latest S/W version.
yHandling of batteries should be performed or supervised by a trained service provider.
yThe battery does not discharge when the load is under a certain level.
yTo prevent network problems, check the "Network Settings" before installation.
yDo not store or place any objects on top of or against the unit. It may cause serious
malfunction or other problems.
yNever use any solvents, abrasives, or corrosive materials to clean this unit.
yUnder backup operation, whether the battery SoC is higher than 90% or the ESS needs
to reduce the charging power, the ESS may reduce the solar power generation.
yIf the battery SoC is too low during backup operation during a power outage, the system
operates as follows.
-Even though the PV system is equipped, the system will not supply power to the home
load. However, the system can charge the battery from the PV system rst and then
supply power to the home again if the battery SoC is sufciently charged.
-If the PV system is not equipped, the system cannot supply power to the home load and
the system will go into sleep mode.

Getting Started
8Due to our policy of continuous product innovation, some specications may change without notication.
©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
First Aid Measures
The Product includes internal fault mechanisms designed to prevent failures and subsequent risk
hazards. However, LG Electronics cannot guarantee the safe performance of the Product if it is ever
exposed to abuse, damage, or negligence.
If a user happens to be exposed to the internal materials of the battery cell due to damage on the
outer casing, the following actions are recommended.
-In case of inhalation: Leave the contaminated area immediately and seek medical attention.
-In case of contact with eyes: Rinse eyes with running water for 15 minutes and seek medical
attention.
-In case of contact with skin: Wash the contacted area with soap thoroughly and seek medical
attention.
-In case of ingestion: Induce vomiting and seek medical attention.
Fire Fighting Measures
Suitable extinguishing media
Use metal re extinguishing powder or dry sand if only a few cells are involved.
In case of a large re, use a large amount of water to extinguish.
Special hazards arising from the chemical
May form hydrouoric acid if electrolyte comes into contact with water.
In case of re, the formation of the following ue gases cannot be excluded: Hydrogen uoride (HF),
Carbon monoxide, and carbon dioxide.
Protective equipment and precautions for reghters
If batteries are charging, shut off power.
Wear a self-contained breathing apparatus and protective suit.
If heated above 130 °C (266 °F), there is a risk of re, explosion, physical injury, or death.
WARNING
Effective way to deal with accidents
-On land : Do not touch the damaged battery and call your local re department or service engineer.
-In water : Stay out of the water and do not touch anything if any part of the ESS or wiring is
submerged.
-Do not use the submerged battery again. Contact your service engineer for assistance.

9
Table of Contents
Getting Started
Important Safety Instructions ........................................................3
First Aid Measures .....................................................................8
Product Features...................................................................10
Part Names........................................................................15
Front and Rear (Home 8) ..............................................................15
LED Indications (Home 8)..............................................................16
Front and Rear (SE Box) ...............................................................17
Settings
Openning the SE box door...........................................................18
About the HOME Screen ............................................................19
User Settings ......................................................................21
General Settings ......................................................................21
PCS Settings..........................................................................28
Using LG ThinQ® Applications (For User)..............................................32
Installing LG ThinQ® ...................................................................32
Using LG ThinQ® ......................................................................33
Troubleshooting
Error Codes and Messages ..........................................................35
PCS Error Codes ......................................................................35
SE Box Error Code ....................................................................37
Battery Error Code ...................................................................38
Appendix
Black Start ........................................................................42
Maintenance.......................................................................43
Cleaning the Product ..................................................................43
Inspecting Regularly...................................................................43
Shutting Down the System ............................................................43
Disposing the product .................................................................44
Compliance Information.............................................................45
Specifications......................................................................47

Getting Started
10 Due to our policy of continuous product innovation, some specications may change without notication.
©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
Product Features
This product is an All In One Energy Storage System (ESS) designed with a grid-connected inverter
and integrated battery. Also, it is possible to supply power in case of a power outage through the
Smart Energy Box (SE Box). The built-in PMS (Power Management System) in SE Box provides the
optimal charging/discharging operation by monitoring the home power usage status, PV power
generation, grid power status, consumer electricity plan, and weather forecast. ATS function can
be enabled for backup power in the built-in PMS, which can provide automatic seamless transfer
switching.
(In order to use all functions smoothly, users must connect this product to the Internet and subscribe
to the LG ThinQ® service.)
Data Line
Alternative Current
Direct Current
PV Module
Air Conditioning
Washing Machine
HVAC Electric Vehicles
OvenTVRefrigerator Heater
LED Lighting
Grid (Utility)
Utility
Meter
PV
inverter1)
(optional)
Mobile Phone
LG ThinQ
SE
Box
Home 8
1) PV inverter is NOT PROVIDED by LG Electronics.
yAll In One ESS
LG ESS Home 8 is a product designed to integrate a grid-connected inverter and battery in one
enclosure. This product is an AC-Coupled type and is directly connected to the household power
grid.
ySingle-phase Three-wire Connection (Split Phase Only)
This product is for use exclusively for single-phase three-wire electric power grids used in the
home.
ySmart Management
The built-in Smart PMS analyses PV generation, load consumption, electricity rate, and weather
information. It also monitors the main system & battery conditions to maintain a stable condition.
Internet connection and LG ThinQ® connection required.

Getting Started
11
Due to our policy of continuous product innovation, some specications may change without notication.
©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
yApp & Web-Monitoring Service
The home owner and installer can monitor their ESS with various devices such as a PC, tablet, or
smart phone.
yBackup Mode
During a power outage, this system supplies emergency power to the household loads. When the
grid experienced an outage, SE Box can automatically switch the power source from the utility grid
to Home 8. For these functions, “Backup” should be enabled in the system.
ySystem Scalability
Up to 4 Home 8 units can be connected to one SE Box. (The required number of Home 8 may vary
depending on the electric service capacity, the load consumption characteristic, and the preferred
operation of the home. Please contact an authorized dealer or the seller for more details.)
System configuration
Whole Home backup Partial Home Backup
SE Box Utility
Meter
Main Panel
(Backup)
PV
inverter
Home 8
SE Box Utility
Meter
Sub-panel
(Backup)
PV
inverter
Home 8
Main Panel
(Non-Backup)
Product Specifications
All specications and descriptions contained in this document are veried to be accurate at the time
of printing. However, since continuous improvement is a goal at LGEUS, we reserve the right to make
product modications 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.
©2022 LGEUS Inc. All rights reserved.
Due to our policy of continuous product innovation, some specications may change without
notication. ©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered
trademark of LG Corp.

Getting Started
12 Due to our policy of continuous product innovation, some specications may change without notication.
©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
Symbol Used on Labels
Symbol Description
E521851
UL approval Listing Mark
UL approval Recognized
Risk of Electric Shock
This product should not be disposed of with other household waste.
Disposal regulations of the country should be observed.
Identies any terminal intended for connection to an external conductor
for protection against electrical shock in case of a fault or the terminal of
a protective earth (ground) electrode.
Read the instruction manual/booklet before starting work or before
operating equipment or machinery.
Caution, risk of danger
Caution, hot surface
Caution, risk of electric shock, energy storage timed discharge
Caution, risk of electric shock
No open ame, open ignition source, or smoking
Wear protective glasses when working on the battery unit.
Install this product out of reach of children.
Take care when handling corrosive substances.
Take care when handling explosive materials.
Serious injury may occur due to the heavy weight of the product.

Getting Started
13
Due to our policy of continuous product innovation, some specications may change without notication.
©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
Symbol Description
Observe precautions for handling electrostatic discharge sensitive devices.
Disconnect the machine or equipment before carrying out maintenance or
repair.
Take care to avoid causing a re by igniting ammable material.
Ensure adequate ventilation of the charging area and take care to avoid
coming in contact with acid.
In case of contact with acid material, immediately ush the area with
plenty of water. Get medical attention immediately. Wash contaminated
clothing before reuse with sufcient water.
Fire extinguishers must be used to put out ames.
Ensure the conductive terminals are matched to their corresponding
counterparts.
Abbreviations in this Manual
Abbreviation Designation Explanation
ESS Energy Storage System Inverter system that stores energy in a battery
and uses it.
Home 8 All In One unit Battery integrated PCS
SE Box Smart Energy Box Micro-grid interface device that consist of an ATS
(automatic transfer switch), energy meter, and
Smart Controller.
PCS Power Conditioning
System
A device intended to convert AC/DC electricity to
charge and discharge the battery.
PMS Power Management
System
A device to control the whole system, including
the power management algorithm, and to
communicate with the cloud server.
ATS Automatic Transfer
Switch
A device to separate the home micro grid from
the utility grid.
PV Photovoltaic A solar panel system that converts solar energy
into direct current electricity.
SoC State of Charge The current charge level of a rechargeable battery
relative to its capacity.

Getting Started
14 Due to our policy of continuous product innovation, some specications may change without notication.
©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
Abbreviation Designation Explanation
BCU Battery Control Unit An electronic system that control a rechargeable
battery system for securing battery safety.
DC Direct Current -
AC Alternating Current -
DHCP Dynamic Host
Conguration
Protocol
Standardized network protocol used on Internet
Protocol (IP) networks for automatic distributing
network conguration parameters, such as IP
addresses for interfaces and services.
LAN Local Area Network A network that interconnects computers within a
limited area.
IP Internet Protocol A set of rules for sending data across a network.

Getting Started
15
Due to our policy of continuous product innovation, some specications may change without notication.
©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
Part Names
Front and Rear (Home 8)
A
B
C
H
D
E
<Front> <Rear>
G
F
ALED Indications
BConduit knockout
CPOWER button (Push type, ON/OFF toggle
button)
DBLACK START (6s) button
(Momentary type, press and hold for 6
seconds)
EFront cover
FHeight leveling adjustable leg
GVentilation opennings
HBracket connected parts

Getting Started
16 Due to our policy of continuous product innovation, some specications may change without notication.
©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
LED Indications (Home 8)
LED Status and Indications
(PV) Green Off Red Blink + Error code
Generating Not generating SE Box Fault
(Grid) Green Off Red Blink + Error code
Normal Abnormal PCS Fault
(Gateway) On Off Red Blink + Error code
Connected Not Connected Battery Fault
SoC level + % Remaining time + hr Error code
On-Grid Backup operation Fault
Charge
On Off
BAT. Charging Not operating
Discharge
On Off
BAT. Discharging Not operating
Fault
On Off
Fault Normal

Getting Started
17
Due to our policy of continuous product innovation, some specications may change without notication.
©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
Front and Rear (SE Box)
A
B
C
D
E
<Front> <Rear>
FG
<Bottom>
AFront cover
BCover lock
CConduit knockout (right)
DWall support screw holes (4 points)
EConduit knockout (left)
FConduit knockouts (bottom)
GConduit hole (bottom)

Settings
18 Due to our policy of continuous product innovation, some specications may change without notication.
©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
Openning the SE box door
To operate the touch-screen display of SE Box, you should open the front door.
Use a 8 mm (5/16 inch) hexagon wrench to open the door as shown in the gure.
yTouch operation may not be possible when wearing gloves.
yTouch operation may not work if your ngers are wet or sweaty.
INFO
Settings

Settings
19
Due to our policy of continuous product innovation, some specications may change without notication.
©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
About the HOME Screen
The HOME screen displays and indicates the current system status. You can also check several
settings and other information on the HOME screen.
A
B
C E
D
ADisplays the sub-menu.
BDisplays the currently running mode.
CDisplays the system status. (Waiting, Charging, Discharging, Warning, Fault, Standby, Stop,
Disconnected, or Force Stop)
DDisplays the charge status of the battery.
EYou can check the power ow and error messages for the PV, Battery, Grid, and Home load.
If there are 2 or more Home 8 units installed in the system, each Home 8's status and error messages
are displayed on the HOME screen as shown below.

Settings
20 Due to our policy of continuous product innovation, some specications may change without notication.
©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
Errors
If an error occurs in the SE Box or Home 8, the current error information is displayed in the Event
History. Press 6to show the errors.
[Type] shows the severity of the error, [Device] shows the information of the device where the error
occurred, and [Code] shows the error code.
Backup History
If the system is in backup mode due to a power outage, you can check the time when the backup
started, the time the power outage ended, and how long the power outage was maintained.
Press [ ] > [Backup History] to show the event history.