LG RBA008K0A00 Installation Manual

Quick Installation Guide

DANGER

WARNING

CAUTION

INFO

HOT

1 2

12

OFF

ON

for LG ESS Home 8 (RBA008K0A00)

Please read the Installation Manual carefully before installing, operating, or servicing this product.

LG ESS Home 8 requires an Internet connection and registration via the LG ThinQ® service. These conditions are mandated for important rmware

updates to secure customer safety.

For the latest ESS documents and full Limited Warranty, visit: https://www.lg.com

Important Safety Instruction

IMPORTANT: This product should not be used for any purpose other
than the purpose described in the installation manual.

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.

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.

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.

*MFL71879401*

Rev.B 07/07/2022

https://www.lg.com

Copyright © 2022 LG Electronics Inc. All Rights Reserved.

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.

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 requires an Internet connection and registration

via the LG ThinQ® service. These conditions are mandated for

important rmware updates to secure customer safety.

yFor the latest ESS documents and full Limited Warranty, visit:

https://www.lg.com
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.

Contact

If there are any errors occurred, you can check it on Home 8 LED
Indicators or HMI Display of SE Box.
Please check Error Code by referring to installation manual or user
manual.

If you have any technical problems or questions, contact the
installation company or LGEUS.

LG Electronics ESS Service

ATTN: Electro-Tech Services, Inc. 19481 SAN JOSE AVE. CITY OF
INDUSTRY CA 91748

[phone]

[e-mail]

Using LG ThinQ® Applications (For User)

INFO

yTo use the LG ThinQ® Application, the SE Box must be connected to

the Internet.

yFor more information, please refer to the Installation Manual or the

User Manual.

1. Download ‘LG ThinQ®’ application in the Google® Play Store or Apple®
App Store® on a mobile phone.

2. Registering the system
Create an account and sign in. > Select [Add a Device] > [Select Device]
> Select [ESS Home].

3. On your SE Box display, press [

4. Set the [Soft AP] option to [Active] state.

] > [Settings] > [General Settings].

Installation Location

33°C

(91.4°F)

0°C

(32°F)

3 000 m
(9842 ft)

> 95%

Part Names

Connection parts (Home 8)

12

PCSBattery

DIP switches

A

AC power terminals (L1, Neutral, L2) (CN_GRID)

B

Communication terminal block (to another Home 8) (CN_PCS)

C

Communication terminal block (to the SE Box) (CN_ATS)

D

Ground terminal (Protective Earth terminal, AC Power)

E

Ground terminal (Protective Earth terminal, Communication)

F

Battery fuse

G

Battery circuit breaker

H

WARNING

The battery packs and harness contain high voltages. Risk of death or
serious injury due to electric shock. Before working on any Home 8
wiring, make sure the Home 8 battery circuit breaker is set to OFF.

A

B

C
D

E
F
G
H

Connection Parts (SE Box)

A

B

C
D

E

Communication terminal (to Home 8) (CN1000)

A

Panelboard

B

Backup load terminals (L1)

C

Backup load terminals (L2)

D

Neutral terminals for grid and load

E

HMI (Human Machine Interface) display

F

Grid terminal (L2)

G

Grid terminal (L1)

H

Neutral terminals for Home 8 and

I

PV inverter

Non-backup load terminals (L2)

J

Non-backup load terminals (L1)

K

Ground terminals for grid and load

L

Ground terminals for Home 8 and PV inverter

M

Minimum Clearance

F

G

H

I

J

K

L

M

Floor Standing Wall Support

WARNING

yIt is important to ensure that the drilling locations are not located on

any electrical wiring or plumbing inside the wall.

yAlign both bracket positions correctly. If the bracket positions are

not correct, the Home 8 may not be mounted properly.

yThe Home 8 must be installed on the oor with a wall support due

to its heavy weight.

yThe system must be installed according to NFPA 855.

Place the wall bracket on a wall.

A

INFO

yThe following images are for reference. For the safe installation the

installers have to assess whether additional xing is required

yThe Weight of Home 8 is 163kg (359 lbs), and SE Box is 25 kg (55

lbs). The wall must contain blocked studs that can bear the weight
or can be of masonry or other suitable structure.

406 mm (16 inches)

305 mm (12 inches)

404 mm (15.9 inches)

From floor

768 mm (30.2 inches)

Afx the wall bracket to the wall with screws or anchors.

B

Align the upper and lower brackets so that they are straight
vertically.

Install a conduit as needed and attach the conduit fitting to the inlet

D

of the wiring compartment

Home 8

Mounting the SE Box

Place the SE Box on a wall which meets every installation conditions

A

and clearance requirement.

500 mm (19.7 inches)

400 mm (15.8 inches)

520 mm (20.5 inches)

600 mm (23.6 inches)

From oor

1,478 mm (58.2 inches)

Fix the SE Box with 4EA screws and anchors with O-rings in each

B

position.

915 mm

(36 inches)

305 mm

(12 inches)

305 mm

(12 inches)

8

2

(

m

m

0

0

7

305 mm

(12 inches)

s)

e

h

c

n

i

m

m

0

0

7

915 mm

(36 inches)

305 mm

(12 inches)

Hang the Home 8 on the wall bracket using the lift.

)

s

305 mm

e

h

c

n

(12 inches)

i

8

2

(

878 mm

(34.6 inches)

C

Then rotate the legs to bring the Home 8 level with the oor.

Before fastening the screws, place the supplied O-rings on the
screws.

Service Equipment Preparation (If Required)

L1 (Black)
L2 (Red)
N (White)
G (Green)
Com. (Gray)

12

L1 (Black)

L2 (Red)

N (White)

G (Green)

8 mm (0.3 inch)

50 mm (2 inches)

80 mm (3.2 inches)

1. CAN HI

2. CAN LOW

3. 12V

4. RELAY CHECK

5. GRID CHECK

6. GND

Blue

Green

Blue-White

Green-White

Orange-White

Orange

8 mm (0.3 inch)

50 mm (2 inches)

From Non-backup Load

L1 (Black)
L2 (Red)

N (White)

G (Green)

PV

inverter

L1

L2

From the PV Inverter

L1 (Black)
L2 (Red)

N (White)
G (Green)

12

12

1 2

OFFON

OFFON

L1 (Black)
L2 (Red)

N (White)
G (Green)

From Home 8

1. CAN HI (Orange-White)

2. CAN LOW (Orange)

3. 12V (Green-White)

4. RELAY CHECK (Green)

5. GRID CHECK (Blue-White)

6. GND (Blue)

L1 (Black)
L2 (Red)

N (White)

G (Green)

From Grid

From Backup Load

L1 (Black)
L2 (Red)

N (White)
G (Green)

12

OFF

ON

Assemble N-GND bonding busbar on Neutral and Ground terminals.

A

Strip off the AC power conductors (L1, L2, Neutral, and Ground) on

C

both the Home 8 and SE Box sides as shown in the gure below.

6-4 AWG

18 mm (0.7 inch)

8-6 AWG

Plug the green terminal block into the communication socket and

G

Connect the drain wire to the lower ground terminal

(CN_PCS)

Insert the communication wires into the 6-position connectors.

K

(CN1000)

10 mm hex

75 kgf·cm (65 lbf·in)

Install a compatible main breaker by fastening the 2 nuts.

B

torque

10 mm hex

75 kgf·cm (65 lbf·in)

torques

L2

L1

L2L1

Wiring Connection between the SE Box and
Home 8

Connect the conduit to the SE Box.

A

The following is an example of possible conduit installation.

Depending on the site, the required conduits and the knockout

position of the SE box may vary

13 mm (0.5 inch)

Connect the AC conductors to the corresponding terminals and

D

connect the AC power ground

52 kgf·cm (45 lbf·in) torque

On the Home 8 side, strip the 6-conductor communication

E

cable and wind up the communication wires and drain wire using

insulation tape as shown in the gure.

When taping the communication wire, wrap the remaining wire and
cover it with insulation tape.

Connect the 6-conductor communication wires to the
communication terminal block as shown.

Flat head screwdriver

6 – 4 AWG –

Set the terminating resistor for CAN communication by using a DIP

H

switches.

Install a 40A circuit breaker to make an electrical connection

I

between the Home 8 and SE Box

Communication
terminal block
(CN_ATS)

Grid and Load Connections

Connect the grid conductors (L1, L2, Neutral, and Ground) to grid

A

terminals.

M8 Hex
317 kgf·cm (275 lbf·in)

torque

288 kgf·cm (250 lbf·in)

58 kgf·cm (50 lbf·in) torque

52 kgf·cm (45 lbf·in) torque

40 kgf·cm (35 lbf·in) torque

M6 Hex

torque

Flat head screwdriver

2 – 2/0 AWG –

6 – 4 AWG –

14-8 AWG –

Home 8

SE Box

WARNING

yBefore starting the wiring, make sure the circuit breaker of the

Home 8 is OFF.

yIf the circuit breaker is ON, death or serious injury may occur due to

electric shock.

Pass the 6-conductor communication cable and the AC power

B

conductors through the conduit.

Drain wire, 80 mm (3.2 inches)

On the SE Box side, strip the 6-conductor communication cable as

F

shown in the gure.

Insulation tape

Remaining wires

connect the AC conductors to the corresponding terminals

J

Flat head screwdriver
Depending on wire size.

Follow the guide from
the Eaton BR series.

Flat head screwdriver

2-2/0 AWG –

58 kgf·cm (50 lbf·in)

52 kgf·cm (45 lbf·in)

40 kgf·cm (35 lbf·in)

torque

6-4 AWG –

torque

14-8 AWG –

torque

Connect the home load conductors (L1, L2, Neutral, and Ground) to

B

the SE Box backup load terminals

M8 Hex
317 kgf·cm (275 lbf·in)

torque

Flat head screwdriver

58 kgf·cm (50 lbf·in) torque

52 kgf·cm (45 lbf·in) torque

40 kgf·cm (35 lbf·in) torque

2 – 2/0 AWG –

6 – 4 AWG –

14-8 AWG –

Connect the non-backup load conductors (L1, L2, Neutral, and

C

Ground) from the non-backup panel to the SE Box non-backup load

terminals

M8 Hex
317 kgf·cm (275 lbf·in)

torque

58 kgf·cm (50 lbf·in) torque

52 kgf·cm (45 lbf·in) torque

40 kgf·cm (35 lbf·in) torque

Connect to PV Inverter

Install the circuit breaker for the PV inverter

A

Flathead screw driver

2 – 2/0 AWG –

6 – 4 AWG –

14-8 AWG –

D

E

Flat head screwdriver
Depending on wire size.

Follow the guide from
the Eaton BR series.

Plug the terminal block into the connector and tighten the screws

Arrange the power cables and fasten them using a cable tie.

Flat head screwdriver

58 kgf·cm (50 lbf·in) torque

52 kgf·cm (45 lbf·in) torque

40 kgf·cm (35 lbf·in) torque

2 – 2/0 AWG –

6 – 4 AWG –

14-8 AWG –

Switch the battery circuit breaker on

B

Press the POWER button and press and hold the BLACK START(6s)

G

button for more than 6 seconds until you hear a “click.”
If the SoC level is shown on the LED display of the Home 8, the
booting process has been completed normally.

Fasten the screws on the right side of the Home 8.

C

EnerVu Settings (Installer Only)

In a browser, visit the LG EnerVu website at https://na.enervu.lg-ess.com.

INFO

To use the EnerVu web monitoring system, the ESS system must be

registered through the LG ThinQ® application rst.

Pass the PV L1 cable from the PV inverter through the 200 A CT

B

Connect CT Harness to CT and terminal block

C

Switch the main circuit breaker for the SE Box to the ON position

D

Ethernet Connection

F

and wait until the main screen appears on the HMI display. It will
take about 30 seconds.

Switch the circuit breaker for the Home 8 to the ON position.

E

Switch the circuit breaker for the PV inverter to the ON position

F

(if equipped).

Wiring Diagram

Home 8

Switch Switch

RD/BK BU/BK BK/YE

Installation Completion

BCU

Remove the panels of SE Box safety cover on the circuit breaker

A

installed positions and install the SE Box safety cover.

Battery

Battery

Battery

Battery

Temp

Sensor

YE/BK

YE/BK

YE/BK

YE/BK

YE/BK

Field Wiring

Protective Earth

FAN FAN

BU/WH

Pre-Charge Relay+

Main Relay +

Main Relay -

FUSE

BK

RD

C/B

OG/RD

Display

PCS

BK/RD

RD

BK

RD

BK

Reactor

BK

RD

Bat

BK

BAT +
BAT -

BK

RD

L1

BK

RD

N

RD

BK

Internal Wiring

Connector

CN BMS

CN BAT

L1

N

L2

Smart Energy Box

PMS

L1

L2

BK RD

CT

Bare

Backup

Load PanelPVInverter

Terminal Block

Display

USB Ethernet

PMS + ATS

Load Relay Grid Relay

N

BK

ESS

RD

BK

Panel

C/B

Board

PV

RD

C/B

WH

WH

WH

GN

WH

Communication Wiring

WH

GN

None Backup

Load Panel

CT

CT

L1

BKRD

L2 L1

MAIN

BREAKER

L1 L2

BK RD

GN
GN

GN

Grid

L2