LG RBA008K0A00 Energy Storage System Instruction Manual

Due to our policy of continuous product innovation, some specifications may change without notice.

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Getting Started
Connection Parts (SE Box)

Communication terminal (to Home 8) (CN1000) Panelboard Backup load terminals (L1) Backup load terminals (L2) Neutral terminals for grid and load HMI (Human Machine Interface) display Grid terminal (L2)

Grid terminal (L1) Neutral terminals for Home 8 and PV inverter Non-backup load terminals (L2) Non-backup load terminals (L1) Ground terminals for grid and load Ground terminals for Home 8 and PV inverter

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Due to our policy of continuous product innovation, some specifications may change without notice.

©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.

Plan the Installation

Installation

1. Select Installation Location
y Select an appropriate installation location for the safe use of the product. y For guidance on the selection of a proper environment, see “Installation location.” y The Home 8 unit must be installed on the floor with the wall support due to its heavy weight. y Choose a leveled floor and wall capable of supporting the full weight of the Home 8 and SE box. y Prepare appropriate screws, anchors, and additional supports for the wall type.
2. Plan the Cable Connection
y Determine the cable route for the connection to the SE Box. y The SE box has 6 knockouts for connecting the conduit. y The Home 8 has 1 hole for the 1.5 inch conduit. y For detailed positions, refer to “Front and Rear (Home 8)”and “Front and Rear (SE Box)”.
3. Plan the Conduit or Raceway
y Depending on the cable size and local code requirements, select the proper Conduit or Raceway size and amount.
y When installing a conduit or raceway as needed, the conduit adapter must be attached to the inlet of the wiring compartment.
y Conduit adapters are required for all installations, and NEMA Type 3R conduit adapters are needed when installing outdoors. (One for each used conduit opening.)
4. Distance Between Components
Follow the table below for the maximum allowable length between system components. Wire gauge must meet local codes and, in some circumstances, the wire gauge requirements change based on length.

Types of Connections SE Box to Home 8 (Power) SE Box to Home 8 (Communication) Wired Ethernet connection
200A CTs to SE Box
RS485 communication cable

Maximum Cable Length
Max 30 m (When multiple Home 8 units are installed, this max value is applied to each unit.) Max 30 m (Total length of the communication cable, including daisy-chained connections, through the last Home 8 in the chain) Max 100 m Up to 30 m (Total length between CT and SE Box) Up to 30 m

Due to our policy of continuous product innovation, some specifications may change without notice.

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Installation
Installation Location
Before installing the product, select an appropriate installation location for the safe use of the product. The Home 8 and SE Box has been certified NEMA 3R and can be installed indoors as well as outdoors. However, if installed outdoors, do not allow the product to be exposed to water sources or continuously exposed to sunlight or other conditions that result in a consistent operating temperature below -10°C (14°F) or exceeding 45°C (113°F). y Power limitation phenomena in the battery (with a resulting decrease in energy production by the
system). y Premature wear of the electrical/electromechanical and mechanical components. y Reduction in performance, performance warranty, and possible damage of the battery
WARNING
y Install the unit considering the possibility of strong winds or earthquakes. y Please follow NFPA 855, NFPA 70 and local codes. y If the installation is in an area that consistently receives heavy snowfall or is subjected to blooding,
make the foundation as high as possible and indoors installation recommended in cold climates regions. y If the product is continuously exposed to sunlight or other conditions that result in a consistent operating temperature below -10°C (14°F) or exceeding 45°C (113°F), it may degrade the performance and life cycle.

33°C (91.4°F)
0°C (32°F)

y This product is designed to be installed for indoor/outdoor use.
y Install this product in the place where PV cables, energy meter cables, grid cables and battery cables are easily accessible.
y The recommended operating temperature range is from 0°C to 33°C (32°F to 91.4°F).
y Indoors installation is recommended in cold climates regions below 0°C (32°F).
y Avoid installing this product in a location exposed to direct sunlight.

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Due to our policy of continuous product innovation, some specifications may change without notice.

©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.

3 000 m (9842 ft)

Installation
y This product is designed to be installed on the floor standing with a wall support. Do not install this product laying on its side.
y This product must be install on a leveled floor and the mounting surface must be able to support the weight of the product. (approx.165 kg (364 lbs))
y Do not install the product on the ceiling. y Do not install the product widthwise or install
on a wall with a lean of more than 10 degrees. y Do not install the product tilting forward.
y This product must be installed or used at an altitude of less than 3,000 m (9,842 ft).

y Do not install this product in an area prone to flooding

95%

y Do not install this product in a highly humid area such as a bathroom. y Do not install the product in an area with vibrations.

y Do not install this product in a place with ammonia, corrosive vapours, acids, or salts.
y Install this product out of reach of children and pets.

Due to our policy of continuous product innovation, some specifications may change without notice.

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Installation

y Do not install this product in places or environments subject to the heavy build-up of dust.
y Do not block the air ventilation openings for cooling. y When cleaning the air duct, shut off all of the systems including the
Home 8 and SE Box.
y This product generates some noise at times and should not be installed close to living or sleeping areas.
y Please consult the location with your installer when installing in places subject to noise sensitivity.

HOT

y The upper side of the installed Home 8 can become hot due to the heat from the air outlet. Do not place any object near the air outlet.

Sea wind

Wall Home 8

sea Installation location

y Do not install Home8sac within 500m of the seashore. Sea salt in the air may cause the product to corrode.
y But, If the wind does not directly touch the product, it can be installed within 500m.

500m
Distance Between Components
Follow the table below for the maximum available length between system components. Wire gauge must meet local codes and in some circumstances wire gauge requirements may change based on length.

Types of Connections
SE Box to Home 8 (Power) SE Box to Home 8 (Communication) Wired Ethernet connection 200A CTs to SE Box RS485 communication cable

Maximum Cable Length
Max 30 m (When multiple Home 8 units are installed, this max value is applied to each unit.) Max 30 m (Total length of the communication cable, including daisychained connections, through the last Home 8 in the chain) Max 100 m Up to 30 m (Total length between CT and SE Box) Up to 30 m

CAUTION
If you do not follow maximum cable size and length requirements, it may result in intermittent or unreliable operation of the Home 8 system. In addition, performance issues may arise even after successful commissioning in systems that still need to meet these minimum requirements.

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Due to our policy of continuous product innovation, some specifications may change without notice.

©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.

Minimum Clearance

Installation

305 mm (12 inches)

915 mm (36 inches)

915 mm (36 inches)

305 mm (12 inches)
700 mm (28 inches)

305 mm (12 inches)
700 mm (28 inches)

305 mm (12 inches)

305 mm (12 inches) (348.768inmchmes)

This product must be installed with clearance at the left, right, top, bottom and front of the product as shown in the figure. Make sure to keep at least a 305 mm (12 inches) distance between Home 8 units and between Home 8 and other devices.
Keep at least a 700 mm (28 inches) distance between the front door and any obstacles in order to allow space for installation and servicing.
If the door is closed, all other products should be at least 305 mm (12 inches) from the front door for safety operation.
Ensure that the distance between the wall and Home 8 is at least 25 mm (1 inch). Be sure not to place any object on top of the Home 8 to prevent risk of fire or serious injury due to high temperature.
If the ESS is installed outdoors with eaves, there must be at least a 915 mm (36 inches) clearance to the eaves. The National Electric Code may required significantly larger working clearances (see NEC Section 110.26).
INFO
When installing the product in a garage, a vehicle crash protection guide must be installed to disassemble for the repair and replacement of the product.

Due to our policy of continuous product innovation, some specifications may change without notice.

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©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.

Installation

When installing the Home 8 next to an air conditioner outdoor unit, install the Home 8 in a position that avoids any hot air expelled from the air conditioner outdoor unit.

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Due to our policy of continuous product innovation, some specifications may change without notice.

©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.

Floor Standing Wall Support

Installation

The Home 8 unit must be installed on the floor with the wall support due to its heavy weight. The proper environments described in “Installation Location” must be considered. Be sure to follow the instructions exactly.
Mounting the Home 8
WARNING
y It is important to ensure that the drilling locations are not located on any electrical wiring or plumbing inside the wall.
y Align both bracket positions correctly. If the bracket positions are not correct, the Home 8 may not be mounted properly.
y The system should be installed according to NFPA 855 used for reference installation guidance and local AHJ requirements.
CAUTION
y Make sure the screws, anchors, and additional supports are appropriate for the wall type. y Make sure the pilot hole size matches the anchor type. y The weight of the Home 8 is 163kg (359 lbs), and the SE Box is 25 kg (55 lbs). The wall
must contain blocked studs that can bear the weight and are of masonry or other suitable structures.

INFO
y When attaching the wall bracket to a wall, adjust the horizontal level using an inclinometer or a leveler.
y When indicating the position to drill, you can refer to the Mount Hole Guide which is a true to scale print of the actual wall bracket if required.
y The Mount Hole Guide is in the SE Box accessory package. y Before fixing the bracket screws, check the horizontal level once again using an inclinometer
or a leveler.
y Depending on the surface, different screws and anchors may be required for installing the wall bracket. Therefore, these screws and anchors are not contained in the product. The system installer is responsible for selecting the proper screws and anchors.
y It is recommended to use stainless steel screws which are 8 mm (5/16 inch) and 76 mm (3 inch) in length.

Due to our policy of continuous product innovation, some specifications may change without notice.

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©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.

Installation
INFO
y The following images are for reference. For safe installation, the installers must assess whether additional fixing is required. Place the wall bracket on a wall which meets every installation condition and clearance requirement. Indicate the positions to drill using a pencil or other writing utensil Drill holes in the indicated positions. It may help to use the true to scale print of the actual wall bracket which provides the hole positions included in the package. Refer to “Mounting details for wall brackets” for more information.
406 mm (16 inches)
305 mm (12 inches)
Affix the wall bracket to the wall with screws or anchors. Align the upper and lower brackets so that they are straight vertically.

768 mm (30.2 inches) From floor 404 mm (15.9 inches)

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Due to our policy of continuous product innovation, some specifications may change without notice.

©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.

Installation
WARNING
y The Home 8 must be installed on the floor due to its the heavy weight. Wall supporting is only for supporting purposes.
y If installation is difficult due to a Stem Wall, reinforce the wall or floor to ensure proper installation.
y Be sure the floor is hard enough to support the weight of the Home 8. y Rotate the legs at the bottom of the Home 8 to adjust the level.
CAUTION
y The Home 8 is very heavy. Serious injury may occur due to the heavy weight when mounting it to the wall. Therefore, special care must be taken in handling. Make sure to use the lift instead of using human strength when installing.
y When hanging the Home 8 on the wall bracket, slowly lower the Home 8 and make sure the Home 8 is properly mounted on the wall bracket.
y If 4 points on the wall brackets (both sides of the 2 wall brackets) are not properly fixed to the wall, the product may fall over.
INFO
In areas where installation is difficult due to the heavy weight of the Home 8, the battery can be disassembled and installed. Refer to the “Battery Pack Disassembly Guide” for battery disassembly.
Hang the Home 8 on the wall bracket using the lift. Then rotate the legs to bring the Home 8 level with the floor.

Due to our policy of continuous product innovation, some specifications may change without notice.

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©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.

Installation
WARNING
y Before making a connection to the Home 8, make sure that the battery circuit breaker is OFF. If the circuit breaker is ON, death or serious injury may occur due to electric shock.
y High voltage is energized through the internal battery module and wiring. Special care must be taken when working on a Home 8 connection.
y High voltage may be energized inside the safety cover. Do not open the safety cover of the Home 8.
Install a conduit as needed and attach the conduit adapter to the inlet of the wiring compartment. The wiring compartment inlet accepts a standard 1 inch conduit adapter. (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.)
Home 8
INFO
After installing a conduit on the side of the Home 8, decide the installation location of the SE Box considering the conduit position.

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Due to our policy of continuous product innovation, some specifications may change without notice.

©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.

Installation
Mounting details for wall brackets
INFO
y Refer to local building codes for the appropriate fastener. y Below are the minimum guidelines for mounting and are not guaranteed to ensure profer
mounting. y Screws must be placed balacned in each corner. y Ensure that the screw positions are at the center of the studs when anchoring to studs.

Wall Type Wood Studs Concrete or Masonry

Screw
M8 (5/16 inch) Lag screws with
washers M8 (5/16 inch) Concrete fasteners with washers

Length (Minimum) 76 mm (3 inches) 63 mm (2.5 inches)

Number of screws 8 16

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©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.

Installation
Mounting the SE Box
Use a flat head screwdriver to open the door. Then remove the safety cover’s 4 screws using a Phillips screwdriver.
CAUTION
When opening the door, do not use any tool other than an 8 mm hexagon wrench and do not apply too much force. It may cause the lock to break.

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Due to our policy of continuous product innovation, some specifications may change without notice.

©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.

Installation
Place the SE Box on a wall which meets every installation condition and clearance requirement. Mark the positions to drill using a pencil or other writing utensil. Drill holes in the indicated positions. It may help to use the true to scale print of the SE Box which provides the hole positions included in the package. (The following is an example of possible conduit installations. Depending on the site, the required conduits and knockout position of the SE box would vary.)
500 mm (19.7 inches) 400 mm (15.8 inches)

520 mm (20.5 inches) 600 mm (23.6 inches) 1,478 mm (58.2 inches) From floor

WARNING
y Take care in holding the product when mounting the SE Box as it is heavy. It may cause injury. y Do not hold the door when mounting. Do not hang anything on the door. It may lead to
deformation or fracture. y It is important to ensure the drilling locations are not located on any electrical wiring or
plumbing inside the wall.
CAUTION
Be careful not to be injured by the sharp edge when make the conduit hole or connecting a conduit.

Due to our policy of continuous product innovation, some specifications may change without notice.

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©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.

Installation
Fix the SE Box with 4EA screws and anchors with O-rings in each position. Before fastening the screws, place the supplied O-rings on the screws.

INFO
y The O-rings must be installed to meet the NEMA 3R requirements when fastening the mounting screws. The mounting screws should be chosen considering the O-ring. The internal diameter of the O-ring is the 8 mm (5/16 inches).
y Adjust the horizontal level using an inclinometer or a leveler when attaching the SE Box to a wall before fixing the screws.
y Depending on the surface, different screws and anchors may be required for installing SE Box. Therefore, these screws and anchors are not included.
y The system installer is responsible for selecting the proper screws and anchors. y It is recommended to use stainless steel screws which are 8 mm (5/16 inch),
76 mm (3 inch) in length and have a head diameter of more than 16mm (0.63 inch).

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Due to our policy of continuous product innovation, some specifications may change without notice.

©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.

Connections
Whole Home Backup (Service Equipment)
PV power measuring CT

Installation
Utility Meter

Home 8
PV inverter
L1 L2 N G

SE Box

Main bonding conductor
Main panel with main breaker (Backup)

Due to our policy of continuous product innovation, some specifications may change without notice.

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Installation
Service Equipment Preparation (If Required)
Neutral-Ground Bonding Busbar Connection
If not needed as a service equipment, this step may be skipped. A proper earth connection and N-GND Bonding busbar connection are required for safe operation of the system and for compliance with local code requirements. If the system is installed as service equipment, connect the Neutral and Ground terminals on the SE Box using the provided N-GND bonding busbar (Cross-sectional area: 45 mm2).
Remove the two nuts positioned in the figure. Assemble N-GND bonding busbar on Neutral and Ground terminals and fasten the two nuts.
10 mm hex 75 kgf·cm (65 lbf·in)
torque
WARNING
To ensure the safe operation in backup mode, a local earth connection must be present on the site such as an earth rod or ground electrode. Connection of the earth rod must comply with local regulations.

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Due to our policy of continuous product innovation, some specifications may change without notice.

©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.

Installation

SE Box Main Breaker Installation
If the system is installed as service equipment, a main breaker must be installed. LGEUS does not provide the main breaker.
Remove the L1 and L2 lugs on the supply side using a 10 mm hex socket wrench. Install a compatible main breaker by fastening the 2 nuts.
10 mm hex 75 kgf·cm (65 lbf·in)
torques

L2

L1

L1

L2

WARNING
Before mounting a main breaker in an electrical system, make sure there is no voltage present where work is to be performed. The voltage in energized equipment may cause injury or death.
INFO
y Main breaker terminal insulators are recommended any time a main breaker is installed in the SE Box.
y Eaton® CSR or BW type breakers can be used. Refer to “Compatible Eaton Parts” for breaker types and required accessories.

Due to our policy of continuous product innovation, some specifications may change without notice.

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Installation
Internal Panelboard and Additional Fastener
SE Box has an internal panelboard, where Eaton BR circuit breakers and BRPSF225 (sub-feed lug block) can be installed. The internal panelboard provides 5 spaces for 2-pole breakers as shown in the following diagram (a ~ e). Use hold down kit (Eaton BRHDK125), when an additional fastener is required for the circuit breaker to comply with NEC and the local code. This hold down kit can be used in placement of a ~ c only. Use d ~ e placements stainless steel screws with, when the sub-feed lug block may be needed to install multiple Home 8 units and PV inverters. It is recommended that the terminal of the lug block should head to the right in consideration of wire bending space. Do not connect the load to the internal panelboard to insure the stable operation of the whole system. The ampacity sum of the circuit breakers should not exceed 200Amps. If a 200A circuit breaker is used at the main breaker load center connected to the lug block, no additional circuit breakers should be installed on the internal panelboard. Following the NEC and local codes is first priority.

a

b

c

d

e

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©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.

Installation
Wiring Connection between the SE Box and Home 8
This is an example of 1 Home 8 connection. For multiple Home 8 connections, please refer to “Multiple Home 8 Units or PV Inverters Connection”.
WARNING
y The system wiring must follow ANSI/NFPA 70 and other local codes. y Conduit adapters are required for all installations, and NEMA Type 3R conduit adapters are
needed when installing outdoors. (One for each used conduit opening.) y Required when torqueing connections
– Follow NEC 2017 110.14(D) – A well-calibrated torque tool must be used to achieve the indicated torque values. – Use tamper-proof torque mark/paint after torquing connections. y Class 1 wiring methods are to be used for field wiring connections to terminals of a Class 2 circuit. y The AC output should be isolated from the enclosure and system grounding.
INFO
y Refer to “Wiring Reference” for wiring specifications. y The wiring images are pictures to help your understand and they may be different from the
actual work.
Connect the conduit to the SE Box.
Home 8

SE Box

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©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.

Installation
WARNING
y Before making a connection to the Home 8, make sure that the battery circuit breaker is OFF. If the circuit breaker is ON, death or serious injury may occur due to electric shock.
y High voltage is energized through the internal battery module and wiring. Special care must be taken when working on a Home 8 connection.
y High voltage may be energized inside the safety cover. Do not open the safety cover of the Home 8.
Remove the screws on the right side and open the front cover of the Home 8. (Hex socket : M8) Before starting the wiring, make sure the circuit breaker of the Home 8 is OFF.
ON
OFF

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Due to our policy of continuous product innovation, some specifications may change without notice.

©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.

Installation
Pass the 6-conductor communication cable and the AC power conductors (L1, L2, Neutral and Ground) through the conduit installed between the Home 8 and SE Box.
L1 (Black) L2 (Red) N (White) G (Green) Com. (Gray)

Strip off the AC power conductors (L1, L2, Neutral, and Ground) on both the Home 8 and SE Box sides as shown in the figure below.
6-4 AWG

18 mm (0.7 inch) 13 mm (0.5 inch)

8-6 AWG

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12

Installation
On the Home 8 side, connect the AC conductors to the corresponding terminals as shown in the figure below. There are two ground terminals on the Home 8 side. Connect the AC power ground to the upper ground terminal. The ground terminals are identified with the following symbol:
L2 (Red) N (White) L1 (Black) G (Green)
Flat head screwdriver 6 ­ 4 AWG ­
52 kgf·cm (45 lbf·in) torque

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©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.

Installation

On the Home 8 side, strip the 6-conductor communication cable and wind up the communication wires and drain wire using insulation tape as shown in the figure.
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.

8 mm (0.3 inch)

50 mm (2 inches)

80 mm (3.2 inches)

Blue Blue-White
Green Green-White
Orange Orange-White

6. GND 5. GRID CHECK 4. RELAY CHECK
3. 12V 2. CAN LOW
1. CAN HI

Insulation tape Drain wire, 80 mm (3.2 inches)
Remaining wires

On the SE Box side, strip the 6-conductor communication cable as shown in the figure. The stripped length of the outer insulation should not be over 2 inches to keep the proper isolation from the power cable in the SE Box. Keep the wiring route of the communication cable should be followed by NEC rule and local codes.

8 mm (0.3 inch)

50 mm (2 inches)

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Installation
Plug the green terminal block into the communication socket. Connect the drain wire to the lower ground terminal as shown in the figure.

12

(CN_PCS)

Communication terminal block (CN_ATS)

CAUTION
When you install multiple Home 8 units, the DIP switch settings on each Home 8 should be different.
Set the terminating resistor for CAN communication by using a DIP switch. When multiple Home 8 units are installed, this terminating resistor should be ON in the last Home 8 in the daisy chain. Refer to “Multiple Connection ID Setup Method” for more information.

12

ON OFF ON OFF

12

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Installation
To make an electrical connection between the Home 8 and SE Box, installing the required ampacity circuit breakers on the SE Box is required. (40A breaker is required.) Install a 40A circuit breaker in the Home 8 as shown in the following figure.

On the SE Box side, connect the AC conductors to the corresponding terminals as shown in the figure.

Flat head screwdriver Depending on wire size. Follow the guide from the Eaton BR series.
L1 (Black) L2 (Red)
N (White) G (Green)
From Home 8

Flat head screwdriver
2-2/0 AWG ­ 58 kgf·cm (50 lbf·in) torque
6-4 AWG ­ 52 kgf·cm (45 lbf·in) torque
14-8 AWG ­ 40 kgf·cm (35 lbf·in) torque

CAUTION
Before inserting the cable conductors to the terminals, loosen the screw and then fix the screws tightly. Shake the cable to check the connection status.

Due to our policy of continuous product innovation, some specifications may change without notice.

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Installation
At the end of the 6-conductor communication cable on the SE Box side, insert the wires into the 6-position connectors as shown in the figure. Fix the cable in the upper hook as shown in the figure. Arrange the cable between the plastic case and metal enclosure. Cut back the drain wire and shield. The drain wire should be terminated at the Home 8 chassis ground terminal only.
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)
(CN1000)

52

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Installation
Grid and Load Connections
INFO
y Must use copper or aluminum wire rated at 90 °C (194 °F) for the AC power connection. y Strip the ends of the wires and insert into the corresponding SE Box terminal lugs. y Using the proper torque tool, tighten the lugs according to the table on the following page.
Connect the grid conductors (L1, L2, Neutral, and Ground) to grid terminals in the SE Box as shown in the following figure. When a main breaker is required, install the main breaker ahead of wiring connection. Please refer to “SE Box Main Breaker Installation”. (Follow the local code.)
1/4 inch Hex 288 kgf·cm (250 lbf·in)
torque

5/16 inch Hex 317 kgf·cm (275 lbf·in) torque

Flat head screwdriver
2 ­ 2/0 AWG ­ 58 kgf·cm (50 lbf·in) torque
6 ­ 4 AWG ­ 52 kgf·cm (45 lbf·in) torque
14-8 AWG ­ 40 kgf·cm (35 lbf·in) torque

From Grid

G (Green) L1 (Black) L2 (Red) N (White)

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Installation
Connect the home load conductors (L1, L2, Neutral, and Ground) to the SE Box backup load terminals as in the following figure.

5/16 inch Hex 317 kgf·cm (275 lbf·in) torque

Flat head screwdriver
2 ­ 2/0 AWG ­ 58 kgf·cm (50 lbf·in) torque
6 ­ 4 AWG ­ 52 kgf·cm (45 lbf·in) torque
14-8 AWG ­ 40 kgf·cm (35 lbf·in) torque

L1 (Black) L2 (Red) N (White) G (Green)

From Backup Load

INFO
There are 6 conduit knockouts on the left, right, and bottom of the SE Box. Select the appropriate conduit knockouts and grounding location so that the cables are not twisted.

Home 8 SE Box Side Hole
SE Box Button Hole

Knockout Position
Inner Outer Inner Outer

Recommended Conduit Body Index Size
1 ½ inch 1 inch 1 ½ inches 1 ½ inches 2 inches

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Installation
For partial home backup with non-backup loads under 100A, a non-backup panel can be connected to the SE Box (The total load should not exceed 200A). Connect the non-backup load conductors (L1, L2, Neutral, and Ground) from the non-backup panel to the SE Box non-backup load terminals as in the following figure.

5/16 inch Hex 317 kgf·cm (275 lbf·in) torque

Flat head screwdriver
2 ­ 2/0 AWG ­ 58 kgf·cm (50 lbf·in) torque
6 ­ 4 AWG ­ 52 kgf·cm (45 lbf·in) torque
14-8 AWG ­ 40 kgf·cm (35 lbf·in) torque

From Non-backup Load

G (Green) L1 (Black) L2 (Red) N (White)

INFO
There are 6 conduit knockouts on the left, right, and bottom of the SE Box . Select an appropriate conduit knockouts and grounding location so that the cables are not twisted.

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Installation

Any circuit connected to the SE Box will not be powered when disconnected from the grid. During on-grid operation, these circuits are still metered by the internal site net metering with no additional metering hardware required.
However, if non-backup load panels exist upstream of the SE Box, additional CTs are required. In this case, refer to “Usage of External CTs”.

Terminals

Wire Gauge

Grid lug (L1, L2) 6 AWG ~ 300kcmil

Non-Backup Load Lugs (L1, L2)
Backup Load Lugs (L1,L2)
Large Neutral Lugs

6 AWG ­ 250 kcmil 6 AWG ­ 250 kcmil 6 AWG ­ 250 kcmil

Tool Size 1/4 inch Hex 5/16 inch Hex 5/16 inch Hex 5/16 inch Hex

Strip Length
32 mm (1.25 inches)
32 mm (1.25 inches)
32 mm (1.25 inches)
32 mm (1.25 inches)

Medium Neutral Lugs

14 AWG ­ 2/0 AWG

Flat head Screwdriver (6 mm)

20 mm (3/4 inches)

Earth Lugs

14 AWG ­ 2/0 AWG

Flat head Screwdriver (6 mm)

20 mm (3/4 inches)

Torque
288 kgf-cm (250 lbf·in) 259 kgf·cm (225 lbf·in)
317 kgf·cm (275 lbf·in)
2 ­ 2/0 AWG ­ 58 kgf·cm (50 lbf·in) 6 ­ 4 AWG ­ 52 kgf·cm (45 lbf·in) 14-8 AWG ­ 40 kgf·cm (35 lbf·in)

INFO
y Refer to “SE Box Wiring: Power” for all wiring requirements and recommendations, including wire colors and gauges.
y Refer to “Whole Home Backup (Service Equipment)” for example system wiring diagrams.

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Installation
Connect to PV Inverter
This is an example of a 1 PV inverter connection. For multiple Home 8 connections, please refer to “Multiple Home 8 Units or PV Inverters Connection”.
INFO
y PV inverters must support a Frequency-Drop or Frequency-Watt functions. y Make sure the PV inverter is a product that satisfies UL1741SA or UL1741SB. y Make sure that the Frequency-Drop or Frequency-Watt function is enabled in the PV
inverter configuration. y If the PV inverter does not support this function or the function is turned off, the product
may malfunction during the backup operation. y A PV inverter that does not support a Frequency-Drop or Frequency-Watt function may be
connected to a non-backup port in the SE Box or a non-backup load panel.
Install the circuit breaker for the PV inverter as shown in the figure. Follow local codes when selecting the circuit breaker ampacity.

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Installation
Pass the PV L1 cable from the PV inverter through the 200 A CT as shown below. The side with the markings P1 and K on the CT faces the PV inverter, and the side with the L and P2 faces the SE Box.

PV

L1

inverter

L2

CAUTION
y Make sure the CT sensor’s direction is correct. y Fix the CT sensor and the L1 cable with a cable tie and position the CT sensor inside of the
SE Box.
INFO
Make sure the CTs are facing the proper direction as described in this manual. A CT will show a negative current if installed in reverse.

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Installation
Using the supplied CT Harness, connect it to the upper side of the CT. When wiring, refer to the figure below for the direction of the Ring Terminal. S1 : Black (PV L1+), S2 : White (PV L1-) Ring terminal: stud size – 1/4 inch, wire range – 18AWG By using the sealable covers included in the CT packaging box, protect screw terminals to always assure the best safety. Refer to the manual included in the CT package to assemble the sealable covers.
After connecting the end of the CT Harness to pins 1 and 2 of the terminal block for PV CT in the SE Box, respectively, S1 (PV L1+) and S2 (PV L1-), plug it into the connector and tighten the screws on both sides of the terminal block. Fix the cable in the hook as shown in the figure below.

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Installation
Connect the PV inverter conductors (L1, L2, Neutral, and Ground) to the corresponding terminals as shown in the figure. Fasten the PV CT to the PV L1 cable using a cable tie or other method. Arrange the power cables between the plastic case and metal enclosure and fasten them at the point indicated by the arrow using a cable tie.

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) torque
6 ­ 4 AWG ­ 52 kgf·cm (45 lbf·in) torque
14-8 AWG ­ 40 kgf·cm (35 lbf·in) torque

L1 (Black) L2 (Red) N (White) G (Green)

From the PV Inverter

INFO
y Refer to “SE Box Wiring: Current Transformer (CT)” for additional diagrams on configuring energy metering.
y Refer to “SE Box Wiring: Current Transformer (CT)” for CT configuration troubleshooting tips.

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Installation
Internet Connection
Internet connection and a ThinQ service subscription are required for the 10-year limited warranty and to view the system status in the LG ThinQ® App.
INFO
y Connect the ethernet cable first, then connect the communication cable.
Ethernet Connection
y Ethernet cable must be CAT5 UTP(24 AWG) or better. y If it is not possible to run an Ethernet cable directly to the customer’s network router, a Powerline
Ethernet socket adapter may be used. y Fix the cable to the lower hook as shown in the figure. Arrange the cable between the plastic case
and metal enclosure.

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Installation
External Shutdown Switch Installation (If Required)
WARNING
y Before making a connection on the shutdown switch, you must ensure disconnection from the Home 8, Grid, and other power sources. It may cause death or serious injury due to electric shock.
y Conduit fittings (hubs) are required for all installations. NEMA Type 3R conduit fittings (hubs) are required when installing outdoors. (One for each used conduit opening)
y Before working with a hole saw, clear a space in the conduit area. It may cause damage to cables.
INFO
This section provides guidelines on system functionality. Please consult your local AHJ or Utility before use.
The External Shutdown Switch is wired through a low voltage, 12 V DC, control circuit connected to a SE Box AUX/Comms port.
Using at least 24 AWG conductors (maximum 16 AWG) with wiring methods according to code, connect pin 5 and 6 (labelled “STOP_P” and “STOP_N”) to a compatible shutdown switch.

1 2
3 4 5 6 7 8 9
10

Additional opening for the shutdown switch. (If needed)
OFF

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Installation

Confirm that all Home 8 operation is shut down when the switch is pressed with a plunger type switch or OFF position with the rotary type switch.

External Shutdown Switch Requirements
y The External Shutdown Switch is supported on firmware version 1.0.2641 or later. y Must be listed or recognized as an “Emergency Stop Button,” “Emergency Stop Device,” or an “Emergency
Stop Unit.” y Must have an ON/OFF position. y Must have a clear ON/OFF position indicator. y Must be rated for outdoor use. (NEMA 3R or higher) y Should be installed externally in a readily accessible location, preferably by the utility meter. y The maximum length of the low voltage wire running from the switch to the SE Box should not
exceed 300 feet (90 m). y Should observe 12V, 0.1A ratings.

Please consider a switch or contact type when preparing the external shutdown switch.

Switch Type
Rotary Switch Plunger Type (Mushroom)

Contact Type
Short in ON position NC (Normally Closed)
Short released

System Energized ON position Released

System Shutdown OFF position Pressed

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Installation

External Shutdown Switch Operation
The External Shutdown Switch option must be enabled on the HMI screen in order to use it. Please ensure that this function is operating normally after the installation.
If it is enabled, the external shutdown switch will make the system operate as stated in the following table.

Shutdown Switch

Plunger Type (Mushroom)

Rotary Type

Pressed

OFF position

Released

ON Position

Home 8 Operation
All Home 8 operations will be shut down (The Home 8 will be in standby mode with no AC voltage output.). This operation is the same regardless of AC grid presence. [AC grid present] The system operation will resume normally soon. [AC Grid not present (Off-grid or AC grid is down)] Home 8 operation will only resume when the utility grid is recovered or when woken by “Black Start” on the Home 8.

y When Black Start operation is required, follow the guidelines for “Black Start”.

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Installation

Backup Load Connection

Available Backup Power
Maximum discharging power/current: 7.5kVA / 31.25A Peak discharging power/current (for 10s) : 9.0kVA / 37.5A Considering the available backup power, please connect the loads to the backup panel. After the installation, please check whether the LG ESS Home 8 can provide backup power properly in “Backup Testing Guidelines”. – The backup load will be supplied by the LG ESS Home 8 and PV during a power outage. – The non-backup load will power down during a power outage.

Backup Load Considerations
The backup power is a limited power source stored in the battery system. Depending on the load types, the stored energy in the battery may be drained rapidly or the system may restart due to big load changes (likely due to the inrush current), or the system may be shut down to protect the battery and the whole system. Please be careful to use the battery system in backup operation by referring to the following table.

Classification General appliance
Large load
High inrush load

Types of Loads
Small plug-in appliance such as TVs, Laptops/PCs, Radios, Routers, and Mobile chargers Lightings (Compact fluorescent or LED recommended) Refrigerator and freezers. Small kitchen appliances (Coffee makers, Cookers, Microwaves)
AWHP (Air to water heat pumps) / Electric water heaters Electric cooktops / Electric ovens Spas / Saunas Washers / Dryers Hair Dryers EV Chargers
Air conditioners Pool pump, Well pump, Sump pump

y Do not use loads exceeding the maximum power or current in the backup load, which may shut down the whole system.
y Using a large load can rapidly drain the battery. y For a high inrush load, please use the soft starter to consider the LRA spec on the labels from the
loads. Depending on the base power consumed for backup operation, the available supply to the inrush current from the LG ESS Home 8 may vary.
y When using an air conditioner, it is especially important to perform a backup test. If the system frequently restarts, use a soft-starter for the air conditioning unit.
y The application is subject to change for appliance improvement purposes without notice.

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Installation
Backup Testing Guidelines
After the installation, please check whether the LG ESS Home 8 can provide backup power properly through the following steps. * LG ESS Home 8 provides the seamless transition within 100ms.
Run the LG ESS Home 8 and make sure the system is operating and not set to “STOP” To prevent a system malfunction caused by the backup operation, please leave the PV circuit breaker in the OFF position during this step. Simulate a power outage by turning off the dedicated breaker of the SE Box or the Service Disconnect Switch. – If you turn off the service disconnect switch, the non- backup loads will be powered down. – If you turn off the dedicated circuit breaker of the SE Box, the non-backup loads will be still powered by the utility grid in the partial backup system. Check that the LG ESS Home 8 provides backup power without any faults or errors. If there were any faults or errors, LG ESS Home 8 will automatically restart within 10 minutes. It may generally take 2 minutes for a single ESS installation. If the system does not restart within 10 minutes, please turn on the dedicated breaker of the SE Box or the Service Disconnect Switch and check the event history. If it works normally, please connect the system to the grid connection by turning on the dedicated breaker of the SE Box or the Service Disconnect Switch for the grid recovery. It will take around 1 minute. Check that the system operates with the grid connection. Turn on the PV circuit breaker and check the PV generation on the HMI screen. After the PV generation, simulate a power outage again. In the beginning of the backup, the LG ESS Home 8 system shifts AC frequency to block the PV generation for a stable transition to backup operation. Please check that the PV generation stopped at the start of the backup operation, and then wait at least 5-8 minutes for PV generation, depending on the grid profile of the PV inverters. Check that the PV generation and LG ESS Home 8 operate well. Depending on the PV generation power and the backup load consumption, the LG ESS Home 8 will be charged or discharged to the backup load. If there were no problems, turn on the dedicated breaker of the SE Box or the Service Disconnect Switch for grid recovery. It will take about 1 minute. Check that the system operates well with the grid connection.

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Installation
Backup Test Troubleshooting Guide
If you have any problems in testing the backup, please read the following carefully. Please connect the system to the utility grid to check the system status. Please check the event history during the backup testing on the HMI screen: [Menu] > [Installer Settings] > [PCS Settings] > [Event history] Check the opened and closed events. If you can find any fault related to over current (OC), the overloaded, or over power faults in the history, please check the load connection and the types of loads. 1. Air conditioners If the air conditioner was connected to the backup load, please perform backup testing without the air-conditioner connected. Please turn off the air- conditioner circuit breaker and then do a backup testing again. If the system operates well, a soft-starter should be installed for the air conditioner. 2. Pumps (Well pumps, Sump pumps, Pool pumps, etc.) If the pumps were connected to the backup load, please check it through the same method as listed for the air conditioner backup testing listed above.
If the system cannot operate normally without using the air conditioner or pumps during the backup test, 1. Check the load consumption power in backup and check the ambient temperature around the Home 8
unit. The output power may be de-rated by the temperature to protect the battery units. If the total load consumed power is over the available maximum discharging power, large loads may also need to be move to non-backup panel. 2. Check the power connection and the polarity of the power cables in the system. Make sure the same polarity is used for multiple Home 8 installation. 3.Check the load imbalance between L1-N and L2-N. Even though the total load consumed power is not over the available output power, the imbalance could make the system over-loaded condition. Please make the 120V load balanced to avoid the over-loaded condition. If the system is still not working well, please contact to a service professional.

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Installation
Installation Completion
Before closing any installed hardware, take photos of the completed wiring in the SE Box, Home 8, and main panel. Make sure that all conduit junctions and cable entry points are secure and properly sealed. Arrange the communication and AC power wires neatly inside the Home 8 wiring compartment. Install the SE Box safety cover and secure it firmly with the original screws. Before attaching the safety cover to the SE Box, remove the panels on the circuit breaker installed positions. When removing the panels, make sure the burr parts in each panel hole are cleanly removed.
CAUTION
The labels and markings must comply with the NEC and local code. The corresponding labels must be attached after the installation inspection has been approved by AHJ.
Attach naming labels to distinguish the breakers.

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Installation
CAUTION
High voltage is energized through the internal battery module and wiring. Special care must be taken.
Switch the battery circuit breaker on the Home 8 to the ON position and close the front cover. When closing the front cover, make sure the front cover is securely fitted to the gasket for a proper waterproof seal.
ON
OFF

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Installation
CAUTION
Make sure the door is correctly closed and all bolts are fastened. Otherwise, the NEMA 3R grade cannot be maintained.
Fasten the screws on the right side of the Home 8. (25 kgf·cm (22 lbf·in) torque, Hex socket : M8)
INFO
The main circuit breaker for the SE Box should be installed in the SE Box or upstream of the SE Box.
Switch the main circuit breaker for the SE Box to the ON position 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. Switch the circuit breaker for the PV inverter to the ON position (if equipped).

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Installation
Press the POWER button and press and hold the BLACK START (6s) button for at least 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.

INFO
The SoC level displayed on the LED display after turning on Home 8 may differ from the actual SoC level. It may take up to 30 minutes to synchronize with the actual SoC level.
CAUTION
All covers must be correctly reassembled. Otherwise, the NEMA 3R grade cannot be maintained.
Close and lock the front door using a flat head screwdriver. When closing the SE Box front door, check the direction of the locking rack. If the direction of the locking rack is not correct, the door will not close properly.

Set all of the system settings on the HMI display of the SE Box and start commissioning.

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Installation
Wiring Reference
Home 8 Wiring

12

No. Home 8 Terminals a CAN + (CAN HI) b CAN – (CAN LOW) c 12V d RELAY CHECK e GRID CHECK (LOGIC) f GND
g Cable Shield/Drain Wire
h L1 (Line 1) i N (Neutral) j L2 (Line2) k Chassis Ground Lug

Recommended Wire Color Orange-White (CAT 5E STP) Orange (CAT 5E STP) Green- White (CAT 5E STP) Green (CAT 5E STP) Blue-White (CAT 5E STP) Blue (CAT 5E STP) (Terminate at the Home 8 chassis ground lug only) Black White Red Green / Yellow

Wire Gauge 24 ­ 16 AWG 24 ­ 16 AWG 24 ­ 16 AWG 24 ­ 16 AWG 24 ­ 16 AWG 24 ­ 16 AWG
6 ­ 4 AWG 6 ­ 4 AWG 6 ­ 4 AWG 8 ­ 6 AWG

y Depending on the local code for installation methods and cable sizing calculations. y If a communication cable may use cable types other than CAT 5E STP,, follow the twisted pair
correctly. Twisted-pair: CAN HI – CAN LOW / 12V – RELAY CHECK / GRID CHECK – GND

INFO
y Refer to local codes and standards for correct wiring practices and colors. y Suitable wire ferrules may be used for power terminals, but are not required.

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SE Box Wiring: Power

Installation

No. Home 8 Terminals

a Grid Terminal (L1,L2)

b

Ground Terminal (Grid, Load) – 6 Positions

c Backup Load Terminal (L1,L2)

d Neutral Terminals (Grid, Load)

e

Neutral Terminals (Home 8, PV Inverter)

f

Ground Terminal (Home 8, PV Inverter) ­ 6 positions

g Non-Backup Load Terminals (L1,L2)

h N-GND Bonding Busbar

i RESET Button

j USB Connector

k DRM Connector

l Ethernet Connector

Recommended Wire Color Black, Red Green, Bare Black, Red White White
Green, Bare Black, Red Included with the SE Box –

• Use copper or aluminum conductors rated at 90 °C (194 °F).

Wire Gauge 6 AWG ­ 300 kcmil 14 AWG ­ 2/0 AWG 6 AWG ­ 250 kcmil 6 AWG ­ 250 kcmil 14 AWG ­ 2/0 AWG
14 AWG ­ 2/0 AWG 6 AWG ­ 250 kcmil 45 mm2 (Optional) 24 AWG CAT5 or better

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Installation
SE Box Wiring: Internal Panelboard

The internal Panelboard is 200A-rated and supports 5 x 2-pole breaker spaces (10 circuits) using Eaton BR Branch circuit breakers up to 125 A.
If an external generation panel is required for a large PV and Home 8 system, use a sub-feed lug (Eaton BRPSF225) on the internal panel board. In this case, other spaces on the internal panelboard can not be used for the circuit breaker. Leave no breakers.
The Home 8 connection to the SE Box always requires a 40 A Circuit breaker. This breaker serves as circuit protection for the Home 8.
Breaker sizing, connection, and installation must comply with the National Electric Code.
For more information, please refer to “Internal Panelboard and Additional Fastener”.

No. Terminals

a

BR Series Circuit Breaker on the Internal Panel Board

b

Neutral Terminal (Home 8, PV Inverter) ­ 6 Positions

c

Ground Terminal (Home 8, PV Inverter) ­ 6 Positions

Recommended Wire Color L1 : Black, L2 : Red Green, Bare Green, Bare

Wire Gauge Depends on the breaker sizing 8 ­ 6 AWG
8 ­ 6 AWG

• Use copper or aluminum conductors rated at 90 °C (194 °F).

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SE Box Wiring: Communication

Installation

AUX/Comms Home 8

AUX/Comms
No. Terminals a RS485 #1 B (LOW) b RS485 #1 A (HIGH) c RS485 #2 B (LOW) d RS485 #2 A (HIGH) e STOP_P f STOP_N g AUX1_P h AUX1_N i AUX2_P j AUX2_N
Home 8
No. Terminals a CAN + (CAN HI) b CAN + (CAN LOW) c 12V d RELAY CHECK e GRID CHECK (LOGIC) f GND

Recommended Wire Color Black Red Black Red Black White Black White Black White

Wire Gauge 24 ­ 16 AWG 24 ­ 16 AWG 24 ­ 16 AWG 24 ­ 16 AWG 18 – 16 AWG 18 – 16 AWG 18 – 16 AWG 18 – 16 AWG 18 – 16 AWG 18 – 16 AWG

Recommended Wire Color Orange-White (CAT 5E STP) Orange (CAT 5E STP) Green- White (CAT 5E STP) Green (CAT 5E STP) Blue-White (CAT 5E STP) Blue (CAT 5E STP)

Wire Gauge 24 ­ 16 AWG 24 ­ 16 AWG 24 ­ 16 AWG 24 ­ 16 AWG 24 ­ 16 AWG 24 ­ 16 AWG

Due to our policy of continuous product innovation, some specifications may change without notice.

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Installation
SE Box Wiring: Current Transformer (CT)

a Internal site net metering CT cable (L1) b Internal site net metering CT cable (L2)

c External site net metering CT connector (L1,L2) d PV Generation metering CT connector (two L1)

Home 8 SE Box Wiring : External Site Net Metering CT Connector

No. Terminals Ext. site net CT L1 + Ext. site net CT L1 Ext. site net CT L2 + Ext. site net CT L2 –

Recommended Wire Color Black White Red or Black White

Wire Gauge 18 ­ 14 AWG 18 ­ 14 AWG 18 ­ 14 AWG 18 ­ 14 AWG

y If external site net metering CTs are required, refer to “Usage of External CTs” for the exact wiring requirements for external site net metering.
Home 8 SE Box Wiring PV Generation Metering CT Connector

No. Terminals PV CT L1 + PV CT L1 PV CT L1 + PV CT L1 –

Recommended Wire Color Black White Black White

Wire Gauge 18 ­ 14 AWG 18 ­ 14 AWG 18 ­ 14 AWG 18 ­ 14 AWG

y Pin 1 and Pin 3, Pin 2 and Pin 4 are shorted inside of the circuitry. All pins may be used for multiple CTs for PV generation if required. If only 1 CT is used in the system, please use pins 1-2 or pins 3-4.
y Twisted cable may improve the CT measuring. If an extended cable is required, please twist.

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Installation
Extending CT Cable Length
A CT cable (1.5 m) is included in the SE Box package for PV generation metering. The ring terminals are required for additional CT connections. (Insulated type is recommended.) The stud size is 1/4 inch (M6) and the required wire range is 18 AWG. A suitable crimp tool is required.
When extending the wire is required, the installer should prepare the cable following this guidance.
Most of the CT cable noise will be line noise (50 or 60 Hz). Since this noise generates at the same frequency as the signal measured by CT, induced noise may affect the accuracy of current measurements, especially at a low current level.
General Guidelines y Keep the cables as short as possible. y Route the CT cables through a dedicated conduit. y Do not route CT cables through the same conduit as the voltage cables. y Keep as far away as possible from other power cables, VFDs (Variable Frequency Drives), and other
heavy machinery. y Do not run cables in parallel with other power cables. Specific guidelines and requirements. y Use the same wire type and gauge to match that of the CTs. (The provided CT cable uses UL1015,
18 AWG.) y The extension cable pair must be twisted (about one twist per inch). The twisted cable increases
the cable’s differential immunity to induced noise at line frequency (50 or 60 Hz). The direction of the twisting should be same as the provided or existing twisted cables. y Avoid large open loops in the cable at the joint ­ Maintain the twisting until as close to the joint as possible. y The best ways to create the electrical connection at the joint: – The best way to join the wires is a solder joint covered and insulated with heat shrink tubing.
Alternately, the provided cable can be switched out for a new, longer cable suitable for the long distance CT. – Wago 221 Series Lever Nuts (TWO 2-pole lever nuts are required for 1 CT.) – Crimp-On Butt Splice (insulated type). These require a special crimping tool, so this method is not always practical. – Do not use normal electrical wire nuts, as these do not provide a good electrical or mechanical connection with 18 AWG wire. – Do not simply twist the bare wires together.

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Settings

Installer Setup Wizard
When this product is turned on for the first time, the installer setup wizard may be used by an authorized service personnel. Before starting the SE Box settings, the physical connection and installation must be securely done exactly as described in this manual.
INFO
y Touch operation may not be possible when wearing gloves. y Touch operation may not work if your fingers are wet or sweaty.
Step 1: Country And Language Settings
You can choose the country and language to use for the system settings.

[Country]: Press the currently selected country and select the desired country from the list. [Language]: Press the currently selected language and select the desired language to change.

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Step 2: Network Type
You can choose the network settings for the system. Refer to “Network Settings” for more information.

Settings

Wired If the network is connected by an ethernet cable, select [Wire] in the [Network Type] wizard. Wireless If you want to use the wireless network connection , select [Wireless] in the [Network Type] wizard. Skip Internet Settings If you do not want to connect the system to the internet., select [Skip Internet Settings] in the [Network Type] wizard.

If the system is not connected to the internet, the installer cannot monitor the system status through the web monitoring system or mobile app.

Due to our policy of continuous product innovation, some specifications may change without notice.

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Settings
Step 3: Installer Password Setting
You can set a password for accessing the system display.
Press the [Input password] field and input the desired password. Your password must be at least 8 characters long. The password must contain at least one number, one special character, and one letter. Press the [Confirm Password] field and input your password again, then press [Apply] to set the password.
Step 4: System Information
You can check the system information.

Check that the loaded system information is correct. If it is not, check the DIP switches on each Home 8 and press [Rescan] to retrieve the information. Refer to step i of the “Wiring Connection between the SE Box and Home 8” for DIP switch settings. For multiple connections, see “Multiple Connection ID Setup Method”.

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Due to our policy of continuous product innovation, some specifications may change without notice.

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Step 5: Firmware Update
You can update the firmware of the system to the latest version via USB .

Settings

The current version and new version of the system firmware are displayed. Connect a USB storage device containing the latest software to the USB connector and press [Firmware update] to start the firmware update.
Step 6: Date & Time Settings
You can set the current date and time. Refer to “Date & Time Settings” for more information.

Due to our policy of continuous product innovation, some specifications may change without notice.

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Settings
Step 7: Additional System Information
You can input the system name and installation date.

Step 8: Utility Information
You can set up a communication connection with utility company and grid profile.

Utility Company
Input the name of a utility company. Grid Profile Select the appropriate grid profile option for the system environment. Select the grid profile at your location.

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Due to our policy of continuous product innovation, some specifications may change without notice.

©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.

Settings

Config Parameters Set the config parameters of the selected grid profile. The available config parameters are displayed when you click the “Edit” button. y Table of field adjustable trip limits for voltage and frequency

Category

Region

OV Level1

AC Voltage (% of
Nominal Voltage)

UV Level1
OV Level2
UV Level2

UV Level3

HF Level1

Frequency

LF Level1
HF Level2

LF Level2

Voltage Range Trip Time Range Voltage Range Trip Time Range Voltage Range Trip Time Range Voltage Range Trip Time Range Voltage Range Trip Time Range Frequency Range Trip Time Range Frequency Range Trip Time Range Frequency Range Trip Time Range Frequency Range Trip Time Range

IEEE1547

UL1741SB

Unit Default (as shipped)

Min

Max Default

Min

Max

%

110

110 120 110 110 120

sec

13

1 13

13

1 13

%

88

0 88

88

50 88

sec

21

21 50

21

21 50

%

120

–

–

120

–

–

sec

0.16

–

–

0.16

–

–

%

50

0 50

50

–

–

sec

2

2 21

1.5

0.5 21

%

50

0 50

50

–

–

sec

2

2 21

1.5

0.5 21

Hz

61.2

61 66 60.5 60.1 66

sec

300

180 1000 300 0.16 1000

Hz

58.5

50 59 58.5 57 59.9

sec

300

180 1000 300 0.16 1000

Hz

62

61.8 66

62

62 64

sec

0.16

0.16 1000 0.16 0.16 1000

Hz

56.5

50 57

57

53 57

sec

0.16

0.16 1000 0.16 0.16 1000

Due to our policy of continuous product innovation, some specifications may change without notice.

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©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.

Settings
Step 9: PV
You can check the information for the PV inverter that is connected to the system.
If you are using a PV inverter, set this option to [Use] and fill the [PV Rate Output Power] and [Installed PV Panel Capacity] fields.
Step 10: External Device
If you are using an external shutdown switch, set the [External Shutdown Switch] option to [Installed]. You can check the device that are connected to port 1 and port 2. If no devices are connected to the ports, it will display as [None].

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Due to our policy of continuous product innovation, some specifications may change without notice.

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Step 11: Operating Mode
You can select an operating mode. Refer to “Operating Mode” for more information.

Settings

Step 12: Battery Settings
You can set the battery’s reserve SoC level in case of a power outage. The default level is set to 20%.

Due to our policy of continuous product innovation, some specifications may change without notice.

85

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Settings
Step 13: Summary
This is the last stage of the settings. Before operating the system, check all of the settings on the [Summary] display. Before operating the system, running a [Commissioning Test] is a way to verify that the system has been set up correctly. If it is not possible to run a [Commissioning Test], select [Start System] to launch the system.

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Settings
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

Displays the sub-menu. Displays the currently running mode. Displays the system status. (Waiting, Charging, Discharging, Warning, Fault, Standby, Stop, Disconnected, or Force Stop) Displays the charge status of the battery. You can check the power flow 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.

Due to our policy of continuous product innovation, some specifications may change without notice.

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Settings
Errors
If an error occurs in the SE Box or Home 8, the current error information is displayed in the Event History. Press 6 to 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.

88

Due to our policy of continuous product innovation, some specifications may change without notice.

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Settings
Installer and User Settings
The installer or user may need to change the system settings, even if all of the settings were set when the system was initially installed. Press [ ] to enter either the [User] or [Installer] settings menu.

To enter the Installer settings menu, you need to input the password on the screen. Input the password to enter the settings menu.

If you input the incorrect password 5 times, you cannot attempt to input another password for one minute.

Due to our policy of continuous product innovation, some specifications may change without notice.

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Settings
General Settings
Country
Press the currently selected country and select the desired country to change.
Language
Press the currently selected language and select the desired language to change.

90

Due to our policy of continuous product innovation, some specifications may change without notice.

©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.

Settings
Network Settings
You can choose the network setting for the system. Select the connection type, either [Wired] or [Wireless].

Wired If the network is connected by an ethernet cable, select [Wired] on the [Network Settings] screen.

If the [IP Settings] option is set to [DHCP], the system will automatically be allocated an IP address from the local area network (LAN) through the wired connection. You may need to set the network connection manually depending on the network conditions. In this case, press [DHCP] to change to [Static].
If you set the [IP Settings] option to [Static], fill in the [IP address], [Network Subnet Mask], [Gateway Address] and [DNS Address] options manually and press [Apply] to apply the network settings.

Due to our policy of continuous product innovation, some specifications may change without notice.

91

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Settings
Wireless If you want to use a wireless network connection, select [Wireless] on the [Network Settings] screen. Available SSIDs are listed on the screen.

Select a SSID you would like to connect the system on the SSID list. Input password of the SSID in the [Password] field. After entering all the fields, tab [Connect] to finish the wireless network connection.
LG SE Box provides both wired and wireless internet connection. Depending on the SE Box location and the router, the wireless signal may be too weak to connect to the internet. The HMI screen on the SE Box will display a warning sign as shown below if the wireless signal is too weak.

It is also necessary to check if the signal strength is sufficient under poor conditions (such as while the entrance or garage door is closed) during usage. If the signal is not strong enough to connect the internet, please consider installing the LG SE Box as close as possible to the router or install a WiFi range extender or Signal Booster.

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Due to our policy of continuous product innovation, some specifications may change without notice.

©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.

Settings
INFO
y Many network connection problems during set up can often be fixed by re- setting the router or modem. After connecting the product to the home network, quickly power off and/or disconnect the power cable of the home network router or cable modem. Then power on and/or connect the power cable again.
y Depending on the internet service provider (ISP), the number of devices that can receive internet service may be limited by the applicable terms of service. For details, contact your ISP.
y LGEUS is not responsible for any malfunction of this product and/or the internet connection feature due to communication errors/malfunctions associated with your broadband internet connection, or other connected equipment.
y Some internet connection operations may not be possible due to certain restrictions set by the Internet service provider (ISP) supplying your broadband Internet connection.
y A 10 Base-T or 100 Base-TX LAN port is required for wired connection to this product. If your internet service does not allow for such a connection, you will not be able to connect this product.
y A DSL modem is required to use DSL services and a cable modem is required to use cable modem services. Depending on the access method and subscriber agreement with your ISP, you may not be able to use the internet connection feature contained in this product or you may be limited to the number of devices you can connect at the same time. (If your ISP limits connection to one device, this product may not be allowed to connect when a PC has already been connected.)
y The use of a “Router” may not be allowed or its usage may be limited depending on the policies and restrictions of your ISP. For details, contact your ISP directly.
y Turn off all unused network equipment in your local home network. Some devices may generate network traffic.
y For the purpose of better wireless transmission, install the SE Box as close as possible to the access point.
y In some environments, placing the access point at least 0.45 m above the ground may improve the reception.
y When using a wireless network connection, remove all obstacles between the SE Box and the access point for better transmission.
y The reception quality over wireless depends on many factors such as type of the access point, distance between the SE Box and access point, and the location of the SE Box.

Due to our policy of continuous product innovation, some specifications may change without notice.

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©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.

Settings
Firmware Version
You can check the current firmware version and update the firmware.

How to update the firmware. Before updating the firmware, you need to store the latest firmware on a USB storage device and insert the USB storage device to the USB connector on the SE Box. When the [USB Status] field displays [Plugged] on the screen, the firmware is ready to update. Press [Firmware Update] to start the firmware update.
Date & Time Settings
You can set the current date and time.

Timezone Press [Timezone] and select the time zone for the region where the system is located.
Automatic date and time If you set this option to [Auto], the date and time settings are automatically set through the internet.
Date / Time You can set the date and time manually. Press [Date] or [Time] and set the current date and time.
Time format Press [Time format] and select either [12 Hours] or [24 Hours].

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Settings
Soft AP
The Soft AP (Software enabled Access Point) function provides a virtual AP function so that you can connect to the system through the LG ThinQ® App on a mobile device. Press the ON/OFF switch to enable or disable this function.

INFO
To use the Soft AP function, you need to register your system through the LG ThinQ® App. Refer to the LG ThinQ® App guide for detailed information.
Open Source
Press [Open Source] to see the Open Source Software Notice.

Reboot
Press [Reboot] to turn off and restart the system.

Due to our policy of continuous product innovation, some specifications may change without notice.

95

©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.

Settings
Dump Log (Installer Only)
The system stores the logs for the last 30 days. To download the log files from the system, you need to connect a USB storage device to the SE Box and tap [Dump Log] to download the log files to the USB storage device.
The current version and new version of the system firmware are displayed. Connect a USB storage device containing the latest software to the USB connector and Press [Firmware update] to start the firmware update.
INFO
y Only FAT32 formatted USB storage devices are able to download the logs. y The log files are stored in a folder named the serial number of the system.
Factory Reset (Installer Only)
Press [Factory Reset] and select [Reset] in the pop-up to reset all of the settings to factory default.

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Due to our policy of continuous product innovation, some specifications may change without notice.

©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.

Settings
PCS Settings
Operation
Press the [Start/Stop] switch to enable or disable the system operation.
System Information
You can check the system information on the screen. If the loaded information is not correct, press [Rescan] to retrieve the information.
System Name
Press [PCS Settings] > [System Name] to set a system name.

Due to our policy of continuous product innovation, some specifications may change without notice.

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Settings
Installation Date
Press [PCS Settings] > [Installation Date] to set the system installation date.

Utility Information
You can set up a communication connection with a utility company and grid profile.

Utility Company
Input the name of a utility company. Grid Profile Select the appropriate grid profile option for the system environment. Select the grid profile at your location.

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Due to our policy of continuous product innovation, some specifications may change without notice.

©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.

Settings

Config Parameters Set the config parameters of the selected grid profile. The available config parameters are displayed when you click the “Edit” button. y Table of field adjustable trip limits for voltage and frequency

Category

Region

OV Level1

AC Voltage (% of
Nominal Voltage)

UV Level1
OV Level2
UV Level2

UV Level3

HF Level1

Frequency

LF Level1
HF Level2

LF Level2

Voltage Range Trip Time Range Voltage Range Trip Time Range Voltage Range Trip Time Range Voltage Range Trip Time Range Voltage Range Trip Time Range Frequency Range Trip Time Range Frequency Range Trip Time Range Frequency Range Trip Time Range Frequency Range Trip Time Range

IEEE1547

UL1741SB

Unit Default (as shipped)

Min

Max Default

Min

Max

%

110

110 120 110 110 120

sec

13

1 13

13

1 13

%

88

0 88

88

50 88

sec

21

21 50

21

21 50

%

120

–

–

120

–

–

sec

0.16

–

–

0.16

–

–

%

50

0 50

50

–

–

sec

2

2 21

1.5

0.5 21

%

50

0 50

50

–

–

sec

2

2 21

1.5

0.5 21

Hz

61.2

61 66 60.5 60.1 66

sec

300

180 1000 300 0.16 1000

Hz

58.5

50 59 58.5 57 59.9

sec

300

180 1000 300 0.16 1000

Hz

62

61.8 66

62

62 64

sec

0.16

0.16 1000 0.16 0.16 1000

Hz

56.5

50 57

57

53 57

sec

0.16

0.16 1000 0.16 0.16 1000

Due to our policy of continuous product innovation, some specifications may change without notice.

99

©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.

Settings
PV
You can set the connected PV inverter information.

If you are using a PV inverter, set the [PV Inverter] option to [Use] and fill the [PV Rate Output Power] and [Installed PV Panel Capacity] fields.
External Device
If you are using an external shutdown switch, set the [External Shutdown Switch] option to [Installed]. You can set any connected devices that are connected to port 1 or port 2. You can set each port to [Modbus] or [AWHP]. If no devices are connected to the ports, it will display as [None].

Modbus
If the port setting is set to [Modbus], set the detailed settings such as [Slave ID], [Baud rate], [Start Bit], [Parity], and [Stop Bit].

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Settings
AWHP If the port setting is set to [AWHP], set the [AWHP Type] and [Energy Level Setting] options. The AWHP settings run the heatpump with the energy generated by the surplus power of the system. If the AWHP function is activated, the AWHP status and AWHP energy flow can be checked on the HOME screen. External Shutdown Switch To use an external shutdown switch, set the [External Shutdown Switch] option to [Installed].
Operating Mode
You can select a operating mode.

PV Self-consumption Mode
This mode operates by minimizing the power used in the system. Power generated from solar power is supplied to the load and the battery is charged with the remaining surplus power. When the battery is fully charged, the surplus power is supplied to the grid. If the load used power is greater than the solar power, the power stored in the battery is used.
ToU Mode
In this mode, charging/discharging is performed for each section by directly inputting the rate applied for each time period.
Available tables are [Summer/Weekday], [Summer/Weekend], [Winter/Weekday], and [Winter/ Weekend]. You can make up to 24 sections with the designated load type. The load type can be set to [Off-Peak], [Shoulder], [Peak], or [Super- Peak].
Backup Only Mode
This mode fully charges the battery in case of a power outage. If this mode is selected, the battery is fully charged and it is not discharged until the mode is changed.

Due to our policy of continuous product innovation, some specifications may change without notice. ©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.

101

Settings
Battery Settings
You can set the battery’s reserve SoC level in case of a power outage. The default level is set to 20%.

102

Due to our policy of continuous product innovation, some specifications may change without notice. ©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.

Settings
Commissioning Test
All of the relative devices in the [Test Readiness] section should display a ready status before starting the test. If every device is ready to test, press [Start] in the [Charging] and [Discharging] test sections. If the [Test Readiness] section is not at a ready status, [Start] cannot be activated.
The Charge and Discharge tests are each around 10 minutes. The result is displayed when each test is completed. When there is no problem with the test, [Success] is displayed. When [Fail] is displayed, press each test result to display the detailed information. Check and solve the errors by referring to the error code in the information, then perform the test again. For information on an error code, refer to “Error Codes and Messages”.

Due to our policy of continuous product innovation, some specifications may change without notice. ©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.

103

Settings
When all charge/discharge tests are successful, the backup test status changes to [READY]. When the [Backup] status is ready, the installer opens the main circuit breaker. If the ESS has successfully obtained backup status, the [Backup] status changes to [RUNNING]. If it fails, the status changes to [FAIL]. If the ESS is in backup status, the installer changes the main circuit breaker to closed. If the grid status is idle for a certain period of time, the grid relay status is closed and the [Backup] state is [SUCCESS].

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Due to our policy of continuous product innovation, some specifications may change without notice. ©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.

Settings
Public Safety Power Shutoffs
If utility companies expect a wildfire or natural disaster, they notify the user of it. After receiving the information, the user can set this function. When you set the start and end time/date, the system fully charges the battery before the set time, considering the current time, the current SoC, and the function start time.

Emergency Ready
This function is a method of operating the system to prepare for an insufficient electricity supply due to bad weather that may occur in the near future. Press the [Use/Not Use] switch to enable or disable the function.

INFO
To use the [Emergency Ready] function, the system must be registered through the LG ThinQ® application. Even when “Emergency Ready” is enabled, alert signal may not be received due to network problems, etc. If more energy security is prefered, keeping the reserved mode SOC higher is recommended.

Due to our policy of continuous product innovation, some specifications may change without notice. ©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.

105

Settings
Event History
If an error occurs in the system, the current error information is displayed.

[Level] shows the severity of the error, [Devi

References

• LG Open Source
• lg.com/us/ess/quickstart
• lg.com/us/ess/usermanual

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