LG RESU16H Prime User manual

Installation Manual for RESU16H Prime
LG Energy Solution strongly advises users to exercise due care in following LG Energy
Solution’s product installation manual. Warranty claims are invalid if damage is caused by
human error in a manner inconsistent with the installation manual’s instructions.
Version 2.1
Scan QR code to view
[Installation Video Guide]
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[Installation Manual PDF File]
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[RESU Monitor (iOS)]
Scan QR code to download
[RESU Monitor (Android)]

2
The information included in this manual is accurate at the time of publication.
However, this manual is subject to change without prior notice. In addition, the illustrations
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instructions.
Please note the images shown are for illustration purposes only.
Contents
1 Safety
1.1 Symbols
1.2 Safety Instructions
1.2.1 General Safety Precautions
1.2.2 Battery Handling Guide
1.2.3 Response to Emergency Situations
1.3 Warning Label
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2 Product Introduction
2.1 Technical Data
2.1.1 Dimensions and Weight
2.1.2 Performance
2.2 Features
2.3 Maintenance
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3 Installation
3.1 Mechanical Requirements
3.1.1 Package Contents
3.1.2 Basic lifting guide
3.1.3 Unboxing the Package
3.1.4 Installation Location
3.1.5 Clearance
3.1.6 Tools & Safety Gear Required
3.1.7 Appearance and Dimensions
3.1.8 System Clearance
3.1.9 Installing the Battery Pack
3.2 Installation process for Remote Monitoring Device (RMD)
3.2.1 Prepare for installation using RMD
3.2.2 Installation via RMD
3.3 Cable Connections
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3.3.2 Guide for cable connection and setting the DIP switch
3.3.3 Spring Terminal Blocks
4 Commissioning
4.1 LED Indicators
4.2 Powering On the Battery Pack
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5 Troubleshooting
5.1 Troubleshooting Overview
5.1.1 Post-Installation Checklist
5.1.2 Troubleshooting Guidelines
6 Uninstallation & Return
6.1 Return/Replacement Instructions
6.1.1 Uninstallation
6.1.2 Contact Information
7. Appendix
7.1 Connection in RESU16H Prime parallel battery system
7.1.1 Setting for communication termination resistor (About Section B)
7.1.2 Power cable (When using a combiner box)
7.2 RMD Applications
7.2.1 Battery Status check via RMD
7.2.2 BMS, DC/DC and RMD Update via RMD
7.2.3 Installation via RMD for web user

ENGLISH
3
1 Safety
1.1 Symbols
Caution, risk of electric shock
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Install the product out of reach of children
Read the instruction manual, in its entirety, before starting installation
and operation
Heavy weight may cause serious back injuries
Do not dispose of the product with household waste
Recyclable
Disconnect the equipment before carrying out maintenance or repair
Observe precautions for handling electrostatic-sensitive devices
Protective Class 1
Caution, risk of electric shock, energy storage timed discharge.
1.2 Safety Instructions
For safety reasons, installers are responsible for familiarizing themselves with the contents of
this document and all warnings before performing installation and servicing.
1.2.1 General Safety Precautions
Over-voltages or wrong wiring can damage the battery pack and cause combustion which can
be extremely dangerous.
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where explosive gas or chemicals are present.
During installation of the battery, the utility grid and solar input must be disconnected from the
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The electronics inside the battery pack are vulnerable to electrostatic discharge.
Be sure to be grounded before handling the battery pack.
Read the label with Warning Symbols and Precautions, which are visible under the Battery
Cover (see Section 1.3 Warning Label).
1.2.2 Battery Handling Guide
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petroleum containers, compressed natural gas/ propane/ welding fuel tanks, natural
gas supply lines, oxygen tanks, swimming pool chemicals, home furnaces, or
boilers, gas cans/kerosene cans, kerosene/oil powered portable heaters, oil rags,
fuel oil tanks, or garbage bins.
 Do not expose or place the product near water sources.
 Do not store or install the product in direct sunlight.
 Install the product in an area with enough ventilation around the product.
 Do not install the product in living area of dwelling units or in sleeping areas.
 Store in a cool and dry place. (Do not store in greenhouses or storage areas for
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 Store the product out of reach of children and animals.
 Store the product in clean environment, free of dust, dirt and debris.
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 Do not damage the product by dropping, deforming, impacting, cutting or
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electrolytes.
 Do not touch the product if liquid spills on it. There is a risk of electric shock.
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detailed in 3.1.8 system clearance
(For wall-mounted option, keep lower clearance area free from foreign materials)
 The outer cable connection hole should be sealed to prevent ingress of foreign
objects.
 Do not step on the packaging or the product may be damaged.
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 Do not put the battery pack upside down on the ground.
 Do not connect the power cables at the terminal block in the opposite direction.
 Do not charge or discharge a damaged battery.
 If the product is installed in a garage or carport, ensure there is adequate clearance
from vehicles.
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as outdoors. However, if installed outdoors, do not allow the battery pack to be
exposed to direct sunlight or water sources, as they may cause:
- Power limitation phenomena in the battery (with a resulting decrease in energy
production by the system).
- Premature wear of the electrical/electromechanical and mechanical components.
- Reduction in performance, performance warranty and possible damage of the battery
 Only use the product with a authorized inverter by LG Energy Solution.
For a list of compatible inverters, visit the LG ESS Battery Website by the URL
below and check the ‘Home Battery’ > ‘Product Info’ menu.
https://www.lgessbattery.com/us (in case of North America)
https://www.lgessbattery.com/au (in case of Australia)
https://www.lgessbattery.com/eu (in case of all EU-countries in general)
https://www.lgessbattery.com/de (in case of Germany)
https://www.lgessbattery.com/it (in case of Italy)
https://www.lgessbattery.com/es (in case of Spain)
 Do not connect any AC conductors or photovoltaic conductors directly to the
battery pack. The battery pack is only to be connected to the inverter.
 The product should be installed in accordance all applicable local standards and
regulations
 Follow local ordinance when installing in a garage for vehicle clearance [min.
3ft(915mm)]
1.2.3 Response to Emergency Situations
The Product includes internal fault mechanisms designed to prevent failures and subsequent
risk hazards. However, LG Energy Solution cannot guarantee safety performance if the Product
was ever exposed to abuse, damage or negligence, before or after it was put into operational
use.
 If a user happens to be exposed to the internal materials of the battery cell, the
following actions are recommended.
In case of inhalation: Leave the contaminated area immediately and seek medical
attention.
In case of contact with eyes: Rinse eyes with running water for 15 minutes and
seek medical attention.
In case of contact with skin: Wash the contacted area thoroughly with soap and
seek medical attention.
In case of ingestion: Induce vomiting and seek medical attention.
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countermeasures.
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A respirator is not required during normal operation.
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from the premises immediately.
WARNING
There may be a possible explosion when batteries are heated above 150°C. When a
battery pack is burning, it will leak poisonous gases. Do not approach it.
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department or service engineer.
In water: Stay out of the water and do not touch anything if any part of the battery, inverter,
or wiring is submerged.
Do not use the submerged battery again. Contact your service engineer for assistance.

4
1.3 Warning Label
Product/warning label and Battery Control Unit’s traceability label are behind the front cover.
The front cover opens by turning the front cover handle counterclockwise. Battery Modules’
traceability labels are attached to the side of the Battery Modules.
1
2-1
2-2
2-2
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Handle
Turn counterclockwise
1. Product/Warning Label
*$1<14>&
RESU16H Prime
Rechargeable
Li-ion
159kg(350.5lb)
: 420V / 410V
: 16 kWh
: 1.616kA / 0.44ms
EH257064P8S8
· Ne pas démonter ou réparer pour afin d’éviter des blessures, chocs électriques ou
brûlures. Seul un personnel de dépannage qualifié est autorisé à intervenir sur
l’appareil.
· Ne pas charger et décharger arbitrairement. Cela risquerait d’engendrer des défauts,
chocs électrique ou brulures.
· Ne pas endommager l’appareil par des chutes, déformations, impacts, coupures
ou par des objects pointus. Cela pourrait engendrer une fuite du liquid électrolytique.
· Measurer les tensions en continu avant câblage.
· ATTENTION : le system de la batterie est une source de tension bidirectionnelle.
· Do not disassemble or repair to avoid injuries, electric shock or burns.
Service by authorized personnel only.
· Do not charge or discharge arbitrarily. It may lead to fault, electric shock or burns.
· Do not damage the unit in such ways as drop, deform, impact, cut or spear with a
sharp object. It may cause electrolyte leakage.
· Measure DC voltages before working in wiring box.
· WARNING: Battery system is a bidirectional source of voltage.
Battery circuit breaker, and inverter must both be off, before working in the wiring box.
· Do not attempt to break open the unit. The units are only serviceable by certified
personnel.
· Do not place near open flame or incinerate. Keep out of reach of children or animals.
· Do not install this product in the place exposed to the direct sunlight.
· Sometimes even if the DC Disconnect is OFF, there may be voltage on the
lines to the Inverter. So please ensure the DC Disconnect on the Inverter is also
OFF during service/ maintenance.
· Single person lift could cause injury. Use assistance when moving or lifting.
· Electric shock hazard if a ground fault is indicated, normally grounded
conductors may be Ungrounded and energized.
· Verboten zu zerlegen oder zu reparieren, um Verletzungen wie Stromschlag oder
Brände zu vermeiden. Nur geschulte Fachkräfte dazu berechtigt.
· Verboten zu laden oder entladen. Es könnte zu Fehler, Stromschlag oder auch
Brandgefahr führen.
· Schäden am Gerät wie Herunterfallen, Deformierungen, äußere Einflüsse,
aufschneiden mit einem spitzen Gegenstand müssen verhindert werden. Es könnte
dazu führen, dass Elektrolyt ausläuft.
· Messen Sie zuerst die DC- Spannung bevor Sie am Gerät arbeiten wollen.
· WARNUNG: Das Batteriesystem ist eine bidirektionale Spannungsquelle.
Batterie-Freischalter und Wechselrichter müssen ausgeschalten sein bevor
Sie an beiden Geräten arbeiten wollen.
· Versuchen Sie nicht die Batterie aufzubrechen. Die Geräte sind nur durch
zertifiziertes Personal bedienbar.
· Platzieren Sie die Batterie nicht in der Nähe von offenem Feuer oder
Zündquellen.
· Halten Sie Kinder und Tiere fern.
· Installieren Sie die batterie nicht in Umgebungen wo sie direktem Sonnenlicht
ausgesetzt ist.
· Es kann vorkommen, dass selbst im ausgeschalteten Zustand des Speichers
eine Spannung zwischen Batterie und Wechselrichter messbar ist.
· Also stellen Sie immer sicher, dass der DC- Trenner des Wechselrichters ist auch
ausgeschaltet während Wartungen oder Service-Arbeiten durchgefülrt werden.
· Einzelne Personen können sich beim Anheben des Speichers verletzen. Holen Sie sich
Hillfe, wenn sie den Speicher versetzen oder anheben müssen.
· Es herrscht Stromschlaggefahr, wenn es zu einem Erdschluss kommen sollte. Es kann
vorkommen, dass geerdete Leiter doch nicht geerdet wurden und unter Strom stehen.
Le disjoncteur du circuit de batterie et l’onduleur doivnt être hors tension
avant câbalge.
· Ne pas placer prés d’une flamme ou incinéré le produit.
· Tenir hors de portée des enfants ou d’animaux.
· Ne pas installer le produit dans un endroit directement exposé au soleil.
· Parfois, même si le courant continu est coupé, il peut y avoir du courant dans
les lignes de l’onduleur. Assurer vous donc que l’onduleur est également hors
tension durant les interventions de maintenance.
· Porter l’appareil seul personne entraine un risque de blessure. Merci de
demander une assistance pour porter ou déplacer l’appareil.
· Si un défaut de la terre est indiqué alors il y a risque de choc électrique.
Dans ce cas il se peut que la mise à a la terre ne fonctionne pas.
2. Traceability label
2-1. Battery Control Unit 2-2. Battery Module
EH257064P8S8XXX
żżżżżżżżżż
SH128064P8S8XXX
żżżżżżżżżżA
SH128064P8S8XXX
żżżżżżżżżżB
 4XDOL¿HG3HUVRQQHO
This guide for the tasks and procedures described herein is intended for use by a trained and
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 Knowledge of the safe, functional principles and operation of grid-tied and non-
grid tied energy systems
 Knowledge of the dangers and risks associated with installing and using electrical
devices and acceptable mitigation methods
 Knowledge of and adherence to this guide and all safety precautions
 2EWDLQVDOOTXDOL¿FDWLRQVVSHFL¿HGLQSURGXFWZDUUDQW\¿OH7KLVLQFOXGHVEXWLV
not limited to:
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: Knowledge of local electrical safety codes standards, i.e., NEC.
: Electrical licence for battery installation required by the country or state
 Repairing the battery by disassembly is possible only at the LG Service Center or
by a person with maintenance authorization from LG Energy Solution
2 Product Introduction
2.1 Technical Data
2.1.1 Dimensions and Weight
RESU16H Prime
Part Number EH257064P8S8
Width 504 mm (19.8”)
Height 1,086 mm (42.8”)
Depth 295 mm (11.6”)
Weight 1)
Total 159 kg (351 lbs)
Module 130 kg (286 lbs)
Control
Unit 24 kg (53 lbs)
Connect
Plate 5 kg (11 lbs)
1) Battery pack weights may vary slightly.
2.1.2 Performance
Electrical Characteristics
Usable Energy 1) 16 kWh
Battery Capacity 64.1 Ah
Voltage Range 350 to 450 VDC
Absolute Max. Voltage 595 VDC
Max. Current (charging/discharging) 20A @ 350V
Max. Power (charging/discharging) 7 kW
Peak Power 2) (only discharging) 11 kW for 10 sec.
Peak Current (only discharging) 32.8A for 10 sec.
Communication Interface RS485/ CAN
DC Disconnect Circuit Breaker
Connection Method Spring Type Connector
User Interface LEDs for Normal and Fault Operation
Operating Conditions
Installation Location Indoor/Outdoor (Standing Only)
Operating Temperature charge 14°F to 122°F (-10°C to 50°C)
discharge -4°F to 122°F (-20°C to 50°C)
Operating Temperature
(Recommended)
59°F to 86°F (15°C to 30°C)
Storage Temperature -22°F to 140°F (-30°C to 60°C), acceptable for 7
days in total
-4°F to 113°F (-20°C to 45°C), acceptable for the
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-4°F to 86°F (-20°C to 30°C), acceptable for months
7~12
Humidity 5% to 95%
Altitude Max. 6,562 ft (2,000 m)
Cooling Strategy Natural Convection
&HUWL¿FDWLRQ
Safety Cell
Battery
Pack
UL1642
CE / RCM / IEC 62619 / UL1973 /
IEC62477-1
Emissions FCC
+D]DUGRXV0DWHULDOV&ODVVL¿FDWLRQ Class 9
Transportation UN38.3
Ingress Rating IP55
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1) Value for battery pack only. Maximal usable energy at the AC output may vary by condition,
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2) Peak current excludes repeated short duration (less than 10 sec. of current pattern).
1,086 mm
(42.8")
295 mm
(11.6")
504 mm
(19.8")

ENGLISH
5
1. Short Circuit Current/Duration
Short Circuit Current 1.616 kA
Duration 0.44 ms
2. Arc Flash Protection Calculations
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Calculations refer to Annex D of NFPA 70E.
Battery System Voltage 288.4V
Battery System Internal Resistance ȍ
Bolted Fault Current 1.616 kA
Arcing Current 0.808 kA
Clearing Time 371 us
Arc Flash Incident Energy 0.000132 Cal/cm
2
Working Distance 450 mm (18inches)
Battery system installers must wear PPE (Personal Protective Equipment) according to
NFPA 70E Article 130.
* NFPA(National Fire Protection Association)
WARNING
 When installing the battery system, the worker shall wear arc-rated clothing
in every occasions and places to protect him/her from any possible exposure
WRDQHOHFWULFDUFÀDVK
 The arc-rated clothing worn by the worker must assure the worker’s
movement and visibility while covering all ignitable clothing.
 The worker shall always wear a non-conductive safety helmet to protect him/
her from any danger of head injury from electric shock or burns due to the
contact with energized electrical conductors or circuit parts resulting from
electrical explosion.
 The worker shall wear non-conductive protective equipment for the face,
neck, and chin to protect him/her from danger of injury from exposure to
HOHFWULFDUFVRUÀDVKHVUHVXOWLQJIURPDQHOHFWULFDOH[SORVLRQ
 The worker shall wear non-conductive protective equipment for the eyes
WRSURWHFWKLPKHUIURPDQ\GDQJHURILQMXU\IURPHOHFWULFDUFVRUÀDVKHV
resulting from an electrical explosion.
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 The worker shall wear heavy-duty leather gloves or arc-rated gloves,
VDWLVI\LQJWKHIROORZLQJUHJXODWLRQOHYHOIRUDUFÀDVKSURWHFWLRQ,QWKHFDVH
of wearing the rubber gloves for the shock protection, he/she shall wear
additional leather protectors above the gloves.
 The worker shall wear heavy-duty leather footwear or dielectric footwear or
ERWKWRSURYLGHVRPHDUFÀDVKSURWHFWLRQ
 The worker shall inspect arc-rated apparel before every use. Work clothing
RUDUFÀDVKVXLWVWKDWDUHFRQWDPLQDWHGRUGDPDJHGWRWKHH[WHQWLPSDLULQJ
the protective qualities, shall not be used. Protective items that become
FRQWDPLQDWHGZLWKJUHDVHRLOÀDPPDEOHOLTXLGVRUFRPEXVWLEOHPDWHULDOV
shall not be used.
 The garment manufacturer’s instructions for care and maintenance of arc-
rated apparel shall be followed.
 Arc-rated apparel shall be stored in a manner that prevents physical damage;
damage from moisture, dust, or other deteriorating agents; or contamination
IURPÀDPPDEOHRUFRPEXVWLEOHPDWHULDOV
2.2 Features
 Compact energy storage unit for domestic photovoltaic system compatibility
 Residential 400V DC battery pack system: Daily cycle and emergency back up
capability.
DC/DC Circuit
Breaker
(600V)
++
--
Circuit Breaker
Battery Inverter
Battery Power
Interface
Inverter Power
Interface
 Protection devices included as follows:
- Inverter Power Interface for protection against overvoltage, overcurrent, external
short-circuit, reverse polarity, inrush current and over temp.
- Battery Power Interface for protection against internal short-circuit, overvoltage,
overcurrent, over temp and undervoltage.
 Flexible installation: Indoors or Outdoors
2.3 Maintenance
RESU16H Prime does not require maintenance during normal operation if properly installed
per the installation manual. In the event of fault, contact the regional service center.
 3DFNDJLQJ6SHFL¿FDWLRQV
Category Contents
Size (L×W×H) 750 mm
(29.5")
985 mm
(38.8")
885 mm
(34.8") Outer Size
Qty/Box (ea) 1
Packaging
Materials
Box Corrugated Cardboard Disposable
Inner EPS Disposable
Pallet Wood Disposable
Weight
Product 159 kg (350.5 lbs)
1 pack/box
(Battery Module (x2) + Battery
Control Unit + enclosed items)
Packaging 30 kg (66.1 lbs) Pallet (8.7kg) + Box (21.3kg)
Gross 189 kg (416.7 lbs) Product + Packaging
3 Installation
3.1 Mechanical Requirements
3.1.1 Package Contents
The following items are included in the package:
Battery Module A&B Battery Control Unit Module Connect
Plate
Module Support
BRKT (x2)
Standing Bracket
1 & 2
Spacer (x2) M6 x L10 Flange
Bolt (x18)
M5 × L200 Long
Flange Bolt (x6)
3/4"-1" Adapter (x2) Cap (x2) Manual Drill template
Cable ties

6
3.1.2 Basic lifting guide
Refer to below guide for lifting and carrying the Battery Control Unit and Battery Modules
during installation.
Handling position
Installer A
Installer B
Battery Control Unit Battery Module
(1 installer)
Battery Module
(2 installers)
3.1.3 Unboxing the Package
1. Cut the packing strap and remove
the top lid.
2. Remove the sleeve.
3. Pull out the Battery Control Unit and
the Spacers (x2).
Installation Manual for RESU16H Prime
Compatible Inverter: ࢉ؟ی ୙ࢉ ଗࡁ(ଗࡁ ߷ࡶ ˁࡉ ۍࢿ)
4. Pull out the bundled items, including
the Module Connecting Plate.
B
B
5. Pull out Battery Module B.
A
A
6. Pull out Battery Module A.
CAUTION
According to regional regulations, several people may be required for moving equipment.
3.1.4 Installation Location
Requirements:
 7KHUHPXVWEHQRKLJKO\ÀDPPDEOHRUH[SORVLYHPDWHULDOVQHDUE\
 The ambient temperature should be within the range of -4°F to 122°F (-20°C to
50°C).
 7KHEDWWHU\SDFNPXVWEHLQVWDOOHGRQDÀDWOHYHOHGVXUIDFHWKDWFDQVXSSRUW
LWVZHLJKWDQGLVLVRODWHGIURPSRWHQWLDOGDPDJHVOLNHÀRRGLQJH[DPSOHVRI
XQVXLWDEOHVXUIDFHVDUHJUDVVURFNDUWL¿FLDOWXUIGLUWJUDYHOHWF
 Product shall be installed indoors (ex. in a basement or a garage) or outdoors
under an eave and out of direct sunlight.
Recommendations:
 The building should be designed to withstand earthquakes.
 The area should be waterproof and properly ventilated. (IP55)
 The product should be installed out of reach of children and animals.
CAUTION
If the ambient temperature is outside operating range, the battery pack will stop
operating to protect itself. The optimal temperature range for the battery pack to operate
LVIURP႔WR႔ႏWRႏ
Frequent exposure to harsh temperatures may deteriorate the performance and life of the
battery pack.

ENGLISH
7
3.1.5 Clearance
Ceiling
Floor
500 mm
(20")
300 mm
(12")
300 mm
(12")
 Recommended clearances for the left,
right and top of the product are shown in
WKH¿JXUHIRUWKHSURSHUYHQWLODWLRQDQG
installer convenience.
3.1.6 Tools & Safety Gear Required
 Tools
The following tools are required to install the battery pack :
Precision screwdriver M5 torque wrench Inclinometer
Drill
(min. diameter 10 mm, 0.4")
Pencil or marker Tape measure
Sealant gun Gland**
 7KHIDVWHQHUVDUHQHHGHGIRU¿[LQJWKHEUDFNHWRQWKHZDOO
** For Australia only, required part is Cobalt Solar Custom Gland, part number
CSE-CHG-3/4NPT-H3-5.5-1B (pack of 2). Available from your RESU distributor.
 Safety Gear for Personal Protection
It is required to wear the following safety gears when handling the battery pack.
Insulated gloves Safety goggles Safety shoes
3.1.7 Appearance and Dimensions
 Appearance
Proper handling and care are recommended as disassembly, change of color,
VFUDWFKHVOHDNDJHRIOLTXLGDQGVWDLQVPD\LQÀXHQFHWKHHFRQRPLFYDOXHRIWKH
battery pack.
 Pack appearance and dimensions
1,086 mm
(42.8")
295 mm
(11.6")
504 mm
(19.8")
 Color and materials
- Battery Module front/rear case:
metallic gray, steel
- Battery Control Unit cover &
Module Connect Plate: metallic gray,
aluminum
- LED cover: black, plastic
3.1.8 System Clearance
7KHEDWWHU\UHTXLUHVDGHTXDWHFOHDUDQFHIRULQVWDOODWLRQFDEOLQJDQGDLUÀRZ7KHPLQLPXP
FOHDUDQFHIRUV\VWHPFRQ¿JXUDWLRQLVSURYLGHGEHORZ7KHFDEOHFRQQHFWLQJEHWZHHQEDWWHU\
pack and inverter should be in accordance with the installation guide manual of the inverter.
NOTE
An external DC isolator may be installed within the clearance zone. Minimum clearances
may be greater according to local regulations.
Inverter
Floor
500mm
(20”)
300mm
(12”)
300mm
(12”)
500mm
(20")
300mm
(12")
300mm
(12")
Inverter
Ceiling
Floor
3.1.9 Installing the Battery Pack
CAUTION
0DNHVXUHWKDWWKHLQYHUWHU$&DQG'&GLVFRQQHFWVDUHWXUQHGR൵EHIRUHFRQQHFWLQJWKH
power cable to the battery pack.
Install the battery pack through the following steps:
Wall
Area1
OK
OK
Ex) If min. clearanceis 200mm,
305mm
203mm
Area2
Area2Area1
Ex) If min. clearance is 200 mm,
Wall Ok
Ok
203 mm
305 mm
1. Place the Drill template to the wall
where the battery pack will be
installed. After that, drill holes on the
position marked on the Drill template.
* Recommended fastener count:
1(Area1)/1(Area2)
* Recommended fastener diameter/
length: 10mm/40mm Min.
* Fastener separation should observe
the regional building code.
Front
MODULECONNECT
LATE1ୋ
Rear
Front
Wall direction
Front
Wall
direction
2. Place a spacer to the position marked
on the Drill template. After that, place
the Module connect plate in contact
with the Spacer and align center lines.
* Pay attention to the direction of
the Spacer. Refer to left image for
correct orientation.
* 'RQRWXVHDQFKRUEROWVWR¿[WKH
0RGXOHFRQQHFWSODWHWRWKHÀRRU
* Be careful not to damage the
aluminum foil attached on the
bottom of Module connect plate
during handling.

8
Standing bracket_1
Standing bracket 1
3. Remove the Drill template. Then pre-
tighten the fasteners on the Standing
Bracket 1.
* The fasteners will be fully tightened
in a later step.
SH128064P8S8XXX
Battery Module B
Label
Wall
Rear
Front
Front
Rear
Battery Module Direction
4. Place Battery Module B on the rear
side of Module Connect plate.
* The side without bolts is the front
of the Battery Module.
* &KHFNWKHODEHOWRFRQ¿UPWKH
battery pack is of B. Label is
attached on the left side of Battery
Module.
SH128064P8S8XXX
Battery Module A
Label
Front
Front
Battery Module B
Battery Module A
TOP VIEW
Rear
Front
Wall
5. Place Battery Module A on the front
side of Module Connect plate. The
Rear side of each Battery Module
should face each other. After that,
remove the Spacer between the wall
and Battery Module.
* &KHFNWKHODEHOWRFRQ¿UPWKH
Battery pack is of A. Label is
attached on the left side of Battery
Module.
Module Support BRKT
6. Loosely assemble Module Support
BRKTs using 6 bolts each (Please do
not tighten the bolts all the way).
$IWHUZDUGWLJKWHQWKH0ÀDQJH
bolts (x12) with a torque of 5 N·m
(3.7 lbf·ft).
Placethe spacer
Inthe line HERE
Placethe spacer
Inthe line HERE
Placethe spacer
Inthe line HERE
Placethe spacer
Inthe line HERE
Placethe spacer
Inthe line HERE
Placethe spacer
Inthe line HERE
Placethe spacer
Inthe line HERE
Placethe spacer
Inthe line HERE
Placethe spacer
Inthe line HERE
Battery Control Unit
Battery Modules
7. Remove bubble wrap from
connectors of Battery Control Unit
and the warning label of Battery
Modules.
Placethespacer
Inthe line HERE
Placethespacer
Inthe line HERE
Placethespacer
Intheline HERE
Placethespacer
Intheline HERE
Placethe spacer
Inthe line HERE
Placethe spacer
Inthe line HERE
Placethe spacer
Intheline HERE
Placethe spacer
Intheline HERE
Spacer
(used for assmbly ang disassembly)
TOP
Place the spacer In the line HERE Place the spacer In the line HERE
Place the spacer In the line HERE
Place the spacer In the line HERE
Place the spacer In the line HERE
Pl
ace t
h
e spacer
Place the spacer
I
n
the
l
in
e
HER
E
In the line HERE
P
l
ace t
h
e spacer
In
the
l
in
e
HER
E
Place the space
r
In
the
l
in
e
HER
E
P
lace the spacer
I
n
the
l
in
e
HERE
Spacer
Spacer Spacer
TOP VIEW
8. Place the spacers on the position
marked with label on Battery
Modules.
Placethe spacer
Inthe line HERE
P
l
a
c
et
hes
pa
c
er
I
nthe line HERE
Placethe spacer
Inthe line HERE
P
la
c
ethe spa
c
er
I
nthe line HERE
Placethe spacer
Intheline HERE
P
la
c
ethe s
pa
c
er
I
nt
heline HERE
Placethe spacer
Inthe line HERE
P
la
c
ethe spa
c
er
I
nthe l
i
neHERE
Battery Control Unit
Battery Control Unit
Placethe spacer
Intheline HERE
P
la
c
ethe spa
c
er
I
ntheline HERE
Placethe spacer
Inthe line HERE
P
la
c
ethe spa
c
er
I
nthe line HERE
Placethe spacer
Inthe line HERE
P
la
c
ethe spa
c
er
I
nthe line
H
ERE
Placethe spacer
InthelineHERE
P
la
c
ethe spa
c
er
I
nthelineHERE
9. Place the Battery Control Unit on
top of the spacers, and align with the
Battery Module.
* Be careful not to break the
connector between the spacers and
the Battery Control Unit.
Placethespacer
InthelineHERE
Placethespacer
InthelineHERE
Placethespacer
Intheline HERE
Placethespacer
Intheline HERE
Placethespacer
Intheline HERE
Placethespacer
Intheline HERE
Placethespacer
Intheline HERE
Placethespacer
Intheline HERE
TPA
Sensing connector Power connector
Front
Front
Front
Front
Sensing connector Power connector
“Click!” TPA
10. Connect the power and sensing
connectors on the right and left sides
(2 each). Assemble the connectors
until you hear a “Click”. After that,
lock the power connector by pressing
TPA (Terminal Position Assurance).
* Assembly both sides of sensing
connector one by one so that both
sides make a “click” sound.
* Be careful if you can’t hear the
“click” sound, it may not be fully
assembled.

ENGLISH
9
Power on LED
FAULT LED
Placethe spacer
Inthe line HERE
Placethe spacer
Inthe line HERE
Placethe spacer
Inthe line HERE
Placethe spacer
Inthe line HERE
Placethe spacer
Inthe line HERE
Placethe spacer
Inthe line HERE
Placethe spacer
Inthe line HERE
Placethe spacer
Inthe line HERE
Handle
11. Check the operation of the battery
pack by following the steps below.
1) Hold and turn the handle
counterclockwise.
2) Open the front cover and turn on
the circuit breaker switch.
3) If there are no problems with the
assembly process or the product
itself, the LED power indicator will
turn on. Sixty (60) seconds later,
the LED fault indicator will blink
(due to a lack of communication
with the inverter, not due to a
product defect).
7XUQR൵WKH&LUFXLW%UHDNHUVZLWFK
Then, close the front cover and turn
the handle counterclockwise.
* If you experience any problems
at this stage, go to Section 5
Troubleshooting.
Placethe spacer
Inthe line HERE
Placethe spacer
Inthe line HERE
Placethe spacer
Inthe line HERE
Placethe spacer
Inthe line HERE
Placethe spacer
Inthe line HERE
Placethe spacer
Inthe line HERE
Placethe spacer
Inthe line HERE
Placethe spacer
Inthe line HERE
12. Double-check the alignment of the
Battery Control Unit.
Placethe spacer
Inthe line HERE
Placethe spacer
Inthe line HERE
Placethe spacer
Inthe line HERE
Placethe spacer
Inthe line HERE
Placethe spacer
Inthe line HERE
Placethe spacer
Inthe line HERE
Placethe spacer
Inthe line HERE
Placethe spacer
Inthe line HERE
Placethe spacer
Inthe line HERE
Placethe spacer
Inthe line HERE
Placethe spacer
Inthe line HERE
Placethe spacer
Inthe line HERE
Placethe spacer
Inthe line HERE
3 Remove a spacer
1 Grab
here
5 Remove another one in
the same way 4 Settle slowly
2 Lift (just few mm)
13. Remove one spacer by lifting one
side of the Battery Control Unit. After
that, remove the other spacer in the
same way.
* Be careful not to pull on the cables
by lifting the Battery Control Unit
too high. Doing so may cause
damage to the cables or cause the
unit to disconnect.
* Before setting down the Battery
Control Unit, the cable connection
should be checked once more.
Placethe spacer
Inthe line HERE
Placethe spacer
Inthe line HERE
Placethe spacer
Inthe line HERE
Placethe spacer
Inthe line HERE
Placethe spacer
Inthe line HERE
Placethe spacer
Inthe line HERE
Placethe spacer
Inthe line HERE
Placethe spacer
Inthe line HERE
Placethe spacer
Inthe line HERE
Placethe spacer
Inthe line HERE
Placethe spacer
Inthe line HERE
Placethe spacer
Inthe line HERE
Placethe spacer
Inthe line HERE
Placethe spacer
Inthe line HERE
Placethe spacer
Inthe line HERE
Placethe spacer
Inthe line HERE
14. Realign the Battery Control Unit.
Placethespacer
Intheline HERE
Placethespacer
Intheline HERE
Place
th
Inthe li
ne
Placeth
Inthe line
M5xL65 Flange Bolt
Top Cover
15. Loosen 4 bolts and remove the Top
Cover.
M5xL200 Flange long Bolt
16. 7LJKWHQVL[ORQJÀDQJHEROWVZLWK
a torque of 5N·m(3.7lbf·ft).
* While assembling, open the front
cover and check that all M5 Flange
long bolts are placed accordingly.
17. Move the Battery pack to set the right
position for assembly of the Standing
bracket.
Standing bracket_2
Standing bracket 2
18. Pre-tighten six (6) M6 bolts to
assemble the Standing Bracket 2 on
Battery Control Unit and the Standing
Bracket 1. After that, fully tighten all
bolts and fasteners on the Standing
Bracket 1 and the Standing Bracket 2.
* Tightening torque for the M6 bolts
is 5N·m(3.7lbf·ft).
Placethe spacer
Inthe line HERE
Placethe spacer
Inthe line HERE
Placethe spacer
Inthe line HERE
Placethe spacer
Inthe line HERE
pa
cer
RE
pacer
RE
19. Re-attach the top cover.
* Tighten the M5xL65 Flange
Bolt (4ea) with a torque of
5N·m(3.7lbf·ft).

10
Placethe spacer
Inthe line HERE
Placethe spacer
Inthe line HERE
Placethe spacer
Intheline HERE
Placethe spacer
Intheline HERE
Placethe spacer
Inthe line HERE
Placethe spacer
Inthe line HERE
Placethe spacer
Inthe line HERE
Placethe spacer
Inthe line HERE
Handle
Front Cover
20. Open the front cover.
* Hold the handle and turn it
counterclockwise.
M5 PH Bolt 6ea
Front Protection Cover
21. Loosen 6 bolts and remove the Front
Protection Cover.
* Be careful not to drop the bolts into
the pack at this stage.
Hole #2
Hole #1
22. Assemble the adapter or cap
according to regional regulations.
Insert the RMD ethernet cable
through Hole #2 and connect the
cable. Then proceed to Section 3.2
Installation for Remote Monitoring
'HYLFH50'
Internal cable
Hole #2 Communication cable
Hole #1 Power cable
23. Assemble the adapter or cap
according to regional regulations.
Then insert the power and
communication cables through the
holes from outside of the pack.
* Arrange the internal cable as
required to avoid blocking the holes
for external cables.
* Assemble custom gland (AU only)
according to regional requirement.
With custom gland, remove blank
RQO\DVUHTXLUHGWR¿WQHFHVVDU\
cables, do not leave open hole
24. Connect the cables according to their
application.
* Refer to Section 3.3 Cable
Connections.
25. Arrange the power cables and
communication cables separately
using cable ties.
* Leave no gap between the cables
and the conduit knock out to
prevent foreign materials from
entering the battery pack.
* Apply silicone sealant or putty
around the cables at each outer
cable connection hole to prevent
foreign materials from entering the
battery pack
* For Australia only, silicone sealant
or putty is not required.
Instead, required art is Cobalt Solar
Custom Gland, part number CSE-
CHG-3/4NPT-H3-5.5-1B (pack
of 2). Available from your RESU
distributor.
M5 PH Bolt 6ea
Front Protection Cover
26. Re-attach the Front Protection Cover
with M5 PH bolt 6ea.
Placethespacer
Intheline HERE
Placethespacer
Intheline HERE
Placethespacer
Intheline HERE
Placethespacer
Intheline HERE
Placethespacer
Intheline HERE
Placethespacer
Intheline HERE
Placethespacer
Intheline HERE
Placethespacer
Intheline HERE
Handle
Handle
27. Close the front cover.
* Hold the handle and turn it
clockwise.
* Make sure the Front Cover is
closed.

ENGLISH
11
,QVWDOODWLRQSURFHVVIRU5HPRWH0RQLWRULQJ'HYLFH
50'
Remote monitoring device (RMD) is a remote device that can install and monitor a battery
pack through app. and web. Download the latest RESU Monitor(RMD) app through the QR
code on cover page. Please check for a more updated manual on RESU Monitor by scanning
below QR codes.
[RESU Monitor App Manual] [RESU Monitor Web Manual]
3.2.1 Prepare for installation using RMD
3.2.1.1 Installer Sign In
3.2.1.1.1 Visit “https://resu.lgensol.com”
1
2
3
1. Select the “Installer”option.
2. Enter your ID and Password.
3. Click the “Sign In” button.
ဵ ,I\RXGRQ¶WKDYH\RXUDFFRXQWSOHDVHYLVLW/*(66%DWWHU\ZHEVLWHDQGPDNHDQDFFRXQW
https://www.lgessbattery.com/us (in case of North America)
https://www.lgessbattery.com/au (in case of Australia)
https://www.lgessbattery.com/eu (in case of all EU-countries in general)
https://www.lgessbattery.com/de (in case of Germany)
https://www.lgessbattery.com/it (in case of Italy)
https://www.lgessbattery.com/es (in case of Spain)
3.2.1.2 Obtaining IoT Hub String
1
2
3
4
5
6
3-1
4-1
4-1
1. 6HOHFW³&RPPLVVLRQLQJ´ĺ³&UHDWH&RPPLVVLRQLQJ,QIR´RQWKHOHIWVLGHEDUWR
access the commissioning information creation screen.
2. Select a continent (ex. Europe, North America, Oceania).
3. Click the “+” button to the right of “Country”, and double-click the appropriate
country from the drop-down list.
4. Click the “+” button to the right of “City”, and enter two (2) or more letters in the
VHDUFK¿HOG)LQGWKHDSSURSULDWHFRXQWU\DQGGRXEOHFOLFNLW
5. Select the appropriate RESU Model.
6. Click the “Execute” button to complete product registration. The device
connection string information will sent to the account e-mail address.
3.2.1.3 User Registration
3.2.1.3.1 Visit “https://resu.lgensol.com”
3.2.1.3.2 Create an Owner account.
1
2
1. Select the “Owner” option.
2. Select “Create Account”.
3
3
3. Review the General Terms and
Conditions for Service Use and Privacy
Policy and check “I Agree” to indicate
consent. Click the “Next” button to
proceed to the next step.
3
3

12
4
5
6
7
8
4. After entering the end-user’s ID (e-mail
address), click the “Check Overlap”
button to check for duplicates.
5. (QWHUWKHQHZSDVVZRUGDQGFRQ¿UP
WKHVDPHSDVVZRUGLQWKHQH[W¿HOG
Password requirements: 10 to 25
characters long, including letters,
numbers, and special characters (!, #, $,
%, ^, &, +, =).
6. Click the “Request Authentication Key”
button to receive authentication key to
the e-mail address entered in step 4.
7. Enter your authentication key within 3
minutes to verify the account.
8. &OLFNWKH³&RQ¿UP´EXWWRQ
!
9
0
9. Select the “Owner” option.
10. Enter ID and Password.
11. Click the “Sign In” button.
 ,QVWDOODWLRQYLD50'
&OLFNWKHOLQNRQWKH5(680RQLWRUZHEVLWHWRGRZQORDGWKH$3.¿OHRIWKHµ5(68,QVWDOOHU¶
App.
NOTE
Depending on the device, ‘RESU Installer’ App may not work.
‘RESU Installer’ App is available in the version of the software as follows;
- Android OS: Pie(9.0) or higher
- iOS : v10.0 or higher
3.2.2.1 Powering On the Product
To proceed with product installation, turn on the product.
* Open the front cover and turn on the
circuit breaker switch.
 50'$SS/RJLQ
:KHQ\RXUXQWKHDSS\RXDUHWKH¿UVWWRORJLQ,WLVDVVXPHGWKDW\RXKDYHFUHDWHGDQ
account in advance.)
3.2.2.3 User Agreement
1. Search the product which you will install.
2. Get the agreement of privacy policy for the customer.
3. If the customer agrees the privacy policy, have customer’s personal information.
1 1
2 3
 50':L)L'LUHFW&RQQHFWLRQ
,QRUGHUWRLQVWDOOXVLQJ50'\RXPXVW¿UVWXVH50'¶V:L)LGLUHFWFRQQHFWLRQ
For the RMD’s Wi-Fi direct connection, see below.
Search and access the SSID of the RMD AP from a device capable of supporting WLAN
Station functions (ex. smartphone).
RMD SSID has a structure of “RESU_+ RMD WLAN STM MAC ADDRESS”. For the
devices below, the SSID of the RMD SoftAP is “RESU_44CBXXXC14F.
The password is 44CBXXXC14F1234(‘44CBXXXC14F’ is RMD MAC ADDRESS, so it
KDVDGL൵HUHQWYDOXHIRUHDFKSDFN3OHDVHUHIHUWRWKH66,'RIHDFK50'+RZHYHUµ¶LV
¿[HGQXPEHU
When Wi-Fi connection is complete, click the “Next” button.

ENGLISH
13
3.2.2.5 QR Code Scan
The QR code scanning method is as follows.
Select
Prime: Fixed at 2
FLEX: Select from 2 to 4
S/N of consecutive QR
codes are automatically
displayed(Maximun 5)
When the QR code registration is complete, click the “Next” button.
If the scanned serial number matches the actual serial number, it will proceed to the next
section.
There are three (3) QR codes: Battery Control Unit, Battery Module A, and Battery Module B.
EH257064P8S8XXX
1. Battery Control Unit QR Code
WallWall
SH128064P8S8XXX SH128064P8S8XXX
WallWall
2. Battery Module QR Code
3.2.2.6 External Internet Connection
ဵ,IWKHHQGXVHUGRHVQRWZLVKWRXVHDQH[WHUQDOLQWHUQHWFRQQHFWLRQVLPSO\SUHVVWKH
“Next” button.)
3.2.2.6.1 Ethernet Connection (primary)
Connect the ethernet cable to a router with internet access.
* For the ethernet cable connector location, refer to the image below.
Connector for
Ethernet cable
For ethernet use, it is enough to connect the cable. Since you have already connected the cables
HDUOLHUQRDGGLWLRQDOFRQ¿JXUDWLRQLVUHTXLUHG
3.2.2.6.2 Wi-Fi Connection
If you are using an ethernet connection and do not wish to use Wi-Fi, simply click the “Next”
button.
 Scan AP(1): Wi-Fi-network currently available for connection is displayed in 2.
 SSID(2): Enter the name of the Wi-Fi-network to connect (You can enter it
manually without going through 1.).
 Password: Enter the password of the Wi-Fi-network to connect.
When internet connection is successful, click the “Next” button.
* In case the WLAN connection is unstable, enhance the signal by using a WLAN
repeater.

14
 50'&RQ¿JXUDWLRQ6HWXS
3URFHHGZLWKWKHEHORZ50'FRQ¿JXUDWLRQVHWWLQJV
Continent : Select your continent
Time Zone: Hour: Select your time zone.
RMD Power Save Timer: OFF(default)
RMD Operation Mode: Normal Mode(default)
Server Use: Choose whether the cloud server (external internet) will be used.
 6HUYHU&RQQHFWLRQDQG%DWWHU\6WDWXV&KHFN
IoT Hub Connection String: Enter the unique string provided to you in order to access the
Azure IoT Hub (cloud server).
The string format is as follows:
HostName=emashub.azure-devices.net;DeviceId=XXXX;SharedAccessKey=OOOO=
* For more information on how to obtain strings, refer to Section 3.2.1.2 Obtaining IoT Hub
String.
Server Connection Check: Check the server connection.
Battery Status: Check if the product has diagnosed any issues.
When the server connection is complete, click the “Next” button.
 50':L)L'LVFRQQHFWLRQ
Disable Wi-Fi in the same way that you connected Wi-Fi in Section 50':L)L'LUHFW
Connection
Disconnect Wi-Fi
When the server connection is complete, click the “Complete” button.
3.2.2.10 Connect to RESU Monitor to Check Product Registration
After product installation via RMD is complete, check if the product has been registered on the
server by selecting “RESU Monitor” below. (https://resu.lgensol.com)
When you log-in, you can check
the product registration as shown
in the picture.
3.3 Cable Connections
1
2
3
 &DEOH&RQ¿JXUDWLRQ
Section A Section B Section D Section E
Section C
1. Section A: Inverter communication ports including CAN/RS485 and enable lines
2. Section B: DIP switch for setting communication termination resistor.
3. Section C: DIP switch for setting primary/secondary packs.
4. Section D: Do not connect the internal communication ports
5. Section E: Battery power ports including positive/negative pole and ground
(POS: power terminal plus, NEG: power terminal minus, GND: ground)
3.3.2 Guide for cable connection and setting the DIP switch
1 2 3 4 5 6
1. Section A: Inverter communication
ports
a) First, connect the enable ground
wire to Terminal 2.
b) Connect the enable 12V positive
line to Terminal 1.
c) Select the method that matches the
inverter communication method in
the part marked. If the inverter uses
RS485, connect the RS485
(A+, B-) lines to Terminals 3
and 4. If inverter uses the CAN
method, connect the CAN (high,
low) lines to Terminals 5 and 6.
ဵ5HIHUWR6HFWLRQ3.3.3 Spring Terminal Blocks, when choosing the communication cable
and stripping cable sheath.

ENGLISH
15
2. Section B: DIP switch for setting
communication termination resistor
of primary/secondary packs
Lower the DIP switch (Communication
Termination resistor) all downwards for
single pack.
※ When you install two packs, refer
to the appendix about setting for
communication termination resistor.
3. Section C: DIP switch for setting
primary/secondary packs
Raise all DIP switches upward when
you want to use as a primary pack.
And also, when you want to use as a
secondary pack, lower the switch on
the right side only when viewed from
the front
123
4. Section E: Battery power port
a) Connect the ground wire to
Terminal 2.
b) Connect the negative line of the
power cable to Terminal 3.
c) Connect the positive line of the
power cable to Terminal 1.
※ Refer to 3.3.3 Spring Terminal
Blocks when choosing the battery
power cable and stripping cable
sheath.
※ When you install two packs, refer to the appendix about power cable.
3.3.3 Spring Terminal Blocks
1. Power terminal block
• Max. cable length: 10 m
(35 ft)
• Cable type:
UL: 8 AWG
IEC: 6 SQ (mm2)
(Optional) Ferrule:
6 SQ (mm2)
• DC 600V insulated
• Pinning
• Phoenix contact
• PCB terminal block SPT
5/3-H-7,5-ZB
• P/N: 1719202
( + )
GND
( - )
2. Communication terminal block
• Max. cable length: 10 m
(35 ft)
• Cable type: 0.2~1.5mm²
(18~22AWG)
• Pinning
• Phoenix contact
• PCB terminal block SPT
2,5/6-H-5,0
• P/N: 1991011
ENABLE 12V
ENABLE GND
RS485 A+
RS485 B-
CAN Hi
CAN Lo
※ Strip cable sheaths (15 mm for the power terminal cable and 10 mm for the communication
terminal cable).
NOTE
Ensure all cable are rmly in place. Loose power cables can cause arcing and may damage
the battery and/or inverter.
4 Commissioning
4.1 LED Indicators
The LED indicators on the front of the battery pack show its operational state as follows:
LED 1
(Power)
LED 2
(Charge)
LED 3
(Discharge)
LED 4
(Fault) Status
Power on (lnit)
- - - Ready
Normal
- - Charge
- - Discharge
- - Fault 1
- - Fault 2
(Every 10 s)
- - - Power-saving
----Power O
(Quickly)
- - - Updating
FW Update
-Update
Complete
-Update Failed
There are four LED indicators on the front of the battery packs to show its operating status.
1. Power On(Init) : Initialization for operating the battery
2. Ready : Battery is ready for operating normally.
3. Charge : Battery pack is charging.
4. Discharge :Battery pack is discharging.
5. Fault : Battery pack is in warning state. Fault1 is blinking. Fault 2 is continuous.
See Section 5 Troubleshooting guide for detail condition.
6. Power saving : Battery is in minimum self consumption power mode.
7. FW update : Battery is in update sequence. See the detail LED indication about
Updating, Update complete, Update failed.
4.2 Powering On the Battery Pack
Power on the battery through the following steps:
1. Open the front cover.
2. Ensure the circuit breaker switch is in the OFF position.
3. Turn on the circuit breaker.
4. Seconds after the circuit breaker switch is ON, four (4) LED indicators will light
up.
5. Ensure the LED power indicator is ON to conrm that the battery pack has
successfully initialized. The LED power indicator on the front should be green.
6. Close the front cover.
7. Turn on the inverter.
CAUTION
If the LED lights stay o, this indicates FAULT or a failure to operate, do not use the battery
pack and contact LG Energy Solution or your distributor.
4.3 ShuttingOtheBatteryPack
Shut o the battery packthrough the following steps:
1. Turn o the inverter.
2. Open the front cover.
3. Turn o the battery pack by moving the circuit breaker switch to the OFF
position.
4. Make sure that every LED indicator on the battery pack is OFF. (After 10
seconds, the LED lights will turn o and the battery will shut down completely.)
5. Close the front cover.

16
5 Troubleshooting
 7URXEOHVKRRWLQJ2YHUYLHZ
Check the LED indicators on the front to determine the state of the battery pack. A faulted state
is triggered when certain conditions like voltage or temperature are beyond design limitations.
The battery pack’s BMS periodically reports its operating state to the inverter.
When the battery pack falls outside of prescribed limits, it enters a faulted state. When a fault is
reported, the inverter immediately terminates operation.
Use the monitoring software on the inverter to identify what caused the faulted state. The
possible warning messages are as follows:
 Battery Overvoltage
 Battery Undervoltage
 Battery Over Temperature
 Battery Under Temperature
 Battery Discharge Overcurrent
 Battery Charge Overcurrent
 Battery Overcharge Power Limit
 Battery Overdischarge Power Limit
 BMS Internal Error
 External Communication Error
 Internal Communication Error
 Battery Cell Deviation Voltage
 Battery Pack Undervoltage
 Battery Urgent Undervoltage
The faulted state is cleared when the battery pack resumes normal operation. If battery pack
is not working correctly and the issue persists, contact LG Energy Solution regional contact
service Point.
NOTE
For serious warnings, if no proper corrective action is taken by the inverter, the battery
pack’s circuit breaker will automatically trip to protect itself.
CAUTION
If the battery pack or the inverter indicates FAULT or fails to operate, contact LG Energy
Solution regional contact point.
 3RVW,QVWDOODWLRQ&KHFNOLVW
Yes No
1. Visually check if the wiring matches the installation manual. (Section
3.3 Cable Connections.)
2. The circuit breaker is ON.
3. The battery LED power indicator is ON.
4. The inverter power is ON.
5. 7KHLQYHUWHUKDVWKHODWHVW¿UPZDUHLQVWDOOHG
1)
6. The inverter recognizes the battery.
2)
7. The battery is operational after installation.
7-1. The AC grid is connected.
7-2. The meter is installed.
7-3. Government approval is complete.
8. IF ANY ITEM IN #7 IS CHECKED AS "NO" OR IF THE INVERTER
NEEDS TO BE TURNED OFF, TURN OFF THE CIRCUIT
BREAKER.
3)
1) Contact the inverter manufacturer.
2) Refer to the inverter installation manual or troubleshooting guidelines.
3) Refer to the Installation manual (3.3 Cable Connections) for the location of the battery. and
the Circuit Breaker.
5.1.2 Troubleshooting Guidelines
If the battery LED power indicator is OFF
1. 7XUQR൵WKHFLUFXLWEUHDNHU
2. 7XUQR൵WKHLQYHUWHU9HULI\WKHUHLVQRSRZHUDWWKHEDWWHU\FRQQHFWLRQ
3. Unplug all the wires and reconnect. Check that the wiring on the battery has been
done correctly. Refer to Section 3.3 Cable Connections.
4. Turn on the circuit breaker.
5. Turn on the inverter.
6. ,IWKH/('SRZHULQGLFDWRULVVWLOO2))WXUQR൵WKHFLUFXLWEUHDNHU
7. Disconnect the power cable connector.
8. Contact LG Energy Solution regional contact point.
If the LED power indicator is ON, but the battery is not charging or discharging
1. 8SGDWHERWKWKHLQYHUWHUDQGEDWWHU\¿UPZDUHYHUVLRQV5HIHUWRWKHLQYHUWHU¶V
troubleshooting guide for instructions.
2. Check the inverter’s battery settings. Refer to the inverter’s troubleshooting guide
for battery setup instructions.
3. If the battery is recognized, inverter setup has been completed successfully.
4. If the issue persists:
7XUQR൵WKHFLUFXLWEUHDNHU
7XUQR൵WKHLQYHUWHU9HULI\WKHUHLVQRSRZHUDWWKHEDWWHU\FRQQHFWLRQ
4-3. Unplug all wires and reconnect. Check that the wiring on the battery has been done
correctly. Refer to Section 3.3 Cable Connections.
4-4. Turn on the circuit breaker.
5. ,IWKHEDWWHU\VHWXSLVFRUUHFWEXWWKHEDWWHU\LVVWLOOQRQRSHUDWLRQDOWXUQR൵WKH
circuit breaker
6. Contact LG Energy Solution regional service contact point.
LED Status Action
Power on
Charging
Discharging
If the LED fault indicator is ON
1. Check if the inverter recognizes the battery. Refer to the inverter’s troubleshooting
guide for battery setup instructions.
2. ,IWKHLQYHUWHULVFRQQHFWHGWRWKHLQWHUQHWFROOHFWWKHORJ¿OHVIURPWKHLQYHUWHU
company.
2-1. Send the fault ID to LG Energy Solution regional contact point.
7XUQR൵WKHFLUFXLWEUHDNHU
2-3. Wait further instruction from LG Energy Solution.
3. If the inverter is not connected to the internet, check the inverter LCD to read the
battery’s fault ID. Refer to the inverter’s troubleshooting guide for instructions.
3-1. Send the fault ID to LG Energy Solution regional contact point.
7XUQR൵WKHFLUFXLWEUHDNHU
3-3. Wait further instruction from LG Energy Solution.
LED Status Action
Fault

ENGLISH
17
6 Uninstallation & Return
6.1 Return/Replacement Instructions
6.1.1 Uninstallation
Uninstall the battery pack in the following order:
M5 PH Bolt 6ea
Front Protection Cover
1. Switch the inverter OFF before
beginning uninstallation of the battery
pack.
2. Switch circuit breaker OFF and make
sure it is in the OFF position.
3. Open the front cover, loosen 6 bolts
and remove the Front Protection
Cover.
4. Disconnect the cables.
Placethe spacer
Inthe line HERE
Placethe spacer
c
ce
c
ce
Pla
Inthe line HERE
HE
e
HE
ne
n
HE
heline HERE
he
t
he
5. Re-attach the Front Protection Cover
with M5 PH bolt 6ea.
Placethe spacer
Inthe line HERE
Placethe spacer
Inthe line HERE
Placethe spacer
Inthe line HERE
Placethe spacer
Inthe line HERE
M5xL65 Flange Bolt
Top Cover
6. Loosen 4 bolts and remove the Top
Cover.
7. Loosen six (6) M6 bolts and
disassemble Standing Bracket #2
ÀDW7KHQPRYHWKHEDWWHU\SDFN
R൵WKHZDOODQGUHPRYH6WDQGLQJ
Bracket #1 from the wall.
M5xL200 Flange
long Bolt
8. Loosen six (6) long bolts.
Placethe spacer
Inthe line HERE
Placethe spacer
Inthe line HERE
Placethe spacer
Inthe line HERE
Placethe spacer
Inthe line HERE
c
er
E
cer
E
9. Re-attach the top cover.
* Tighten the M5xL65 Flange
Bolt (4ea) with a torque of
5N·m(3.7lbf·ft).
Placethe spacer
Inthe line HERE
Placethe spacer
Inthe line HERE
Placethe spacer
Inthe line HERE
Placethe spacer
Inthe line HERE
Placethe spacer
Inthe line HERE
Placethe spacer
Inthe line HERE
Battery Control Unit
Spacer
10. 3ODFHWKH¿UVWVSDFHURQWRSRIWKH
Battery Modules.
* Be careful not to pull the cables
tight by lifting the Battery Control
Unit excessively. It may damage the
cables or disassembly of connector.
Placethe spacer
Inthe line HERE
Placethe spacer
Inthe line HERE
Placethe spacer
Inthe line HERE
Placethe spacer
Inthe line HERE
Placethe spacer
Inthe line HERE
Placethe spacer
Inthe line HERE
Battery Control Unit
Spacer
11. After that, place the second spacer on
top of the Battery Modules.
1
2
3
3
1 1
2
Placethespacer
Intheline HERE
Placethespacer
Intheline HERE
Placethespacer
Intheline HERE
Placethespacer
Intheline HERE
Placethespacer
Intheline HERE
Placethespacer
Intheline HERE
Placethespacer
Intheline HERE
Placethespacer
Intheline HERE
Power connector
TPA
Sensing connector
Front
Front
12. Disconnect the power and sensor
connectors on the right and left sides
(2 each). This step should undergo
a deliberate visual inspection by the
installer before proceeding.
1) Power connector: 1 Pull the TPA
and 2 press the button at the
center of the connector. Then 3
pull out the connector vertically.
2) Sensor connector: 1 Push in the
sides of the connector and 2 pull
out the connector vertically. Then
3 pull the connector out to the
side of the Battery Module.
* Be careful not to damage to the
sensor connector’s guide pins
during disassembly.
* At this stage, DO NOT lift the
Battery Control Unit until all
connectors are disconnected.

18
Module Support BRKT
13. Disassemble Module Support BRKTs
with six (6) bolts each.
* Loosen the M6 Flange Bolts (x12)
14. Repack in the box.
6.1.2 Contact Information
'DPDJHGEDWWHULHVDUHGDQJHURXVDQGPXVWEHKDQGOHGZLWKH[WUHPHFDXWLRQ7KH\DUHQRW¿W
for use and may pose a danger to people or property. If the battery pack seems to be damaged,
contact LG Energy Solution regional contact point. Use the contacts below for technical
assistance. These phone numbers are available only during business hours on weekdays.
6HUYLFH&RQWDFWV
+4.252WKHU
Regions
Address 29, Gwahaksaneop-3-ro, Oksan-myeon, Heungdeok-gu,
Cheongju-si , Chungcheongbuk-do, South Korea
Email [email protected]
US
Address 19481 San Jose Ave City of Industry, CA 91748, U.S.A
Telephone [phone]
Email [email protected]
Europe
Address E-Service Haberkorn GmbH, Stolberger Str. 25, 06493
Harzgerode, Germany
Telephone [phone]
Email [email protected]
Australia
Address Unit 12, 35 Dunlop Road, Mulgrave VIC 3170, Australia
Telephone [phone]
Email [email protected]
7. Appendix
7.1 Connection in RESU16H Prime parallel battery system
CAUTION
Parallel battery system can only be applied between batteries of same energy (2 * 10H, 2 * 16H, etc)
7.1.1 Setting for communication termination resistor
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Section A Section B Section D Section E
Section C
When you install the pack as primary, Turn ON the DIP switch for communication termination
resistor.
When you install the pack as secondary, Turn OFF the DIP switch for communication
termination resistor.
Primary
Pack
Inverter
Terminating
resister ON
(already have)
(already have)
Inverter
Primary
Pack
Terminating
resister ON
1. Case 1 : When installing one battery
pack, Turn ON the DIP switch for
communication termination resistor.
(It is ON when switches are lowered.)
Primary
Pack
Position
: Middle side
Inverter
Terminating
resister OFF
(already have)
Primary
Pack
Terminating
resister ON
Position
: Last side
(already have)
Inverter
Primary Pack Primary Pack
Terminating
resister ON
Terminating
resister ON
2. Case 2-1 : When installing two
battery packs, and inverter has two
communication ports separately for
each battery pack, Turn ON all of
the DIP switches for communication
termination resistor of both packs.
Primary
Pack
Position
: Middle side
Inverter
Terminating
resister OFF
(already have)
Primary
Pack
Terminating
resister ON
Position
: Last side
(already have)
Inverter
Secondary
Pack
Position:
Middle side
Primary Pack
Position:
Last side
Terminating
resister OFF
Terminating
resister ON
3. Case 2-2 : When you install the
two battery packs and inverter
has only one communication port
for both battery packs, install the
secondary pack with the termination
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side. Install the primary pack with
the termination resistor turned on
in the last side. Middle side means
that it is connected two number of
communication pairs, (1st : from
inverter to Secondary pack, 2nd : from
Secondary pack to Primary pack),
Last side means that it is connected one communication pair (from Secondary pack to Primary
pack)
In Case 2-2, communication cable is connected by a daisy chain. Communication line from
the inverter should be connected to the secondary battery pack. The additional communication
line is connected from the secondary battery pack to the primary battery pack in a daisy chain
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normally.

ENGLISH
19
Primary
Pack
Secondary
Pack
Primary Pack Secondary Pack
Inverter
ENABLE 12V
ENABLE GND
RS485 A+
RS485 B-
CAN Hi
CAN Lo
ENABLE 12V
ENABLE GND
RS485 A+
RS485 B-
CAN Hi
CAN Lo
In the case of products using a combiner box, communication lines can also be connected
through the combiner box.
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not the battery’s own condition. Therefore, you must refer to the battery communication
connection description in the inverter installation guide. Below are some examples
according to the inverter model.
[When only 1 pack is installed]
Inverter model
SMA SolarEdge
Other models
(Case 1)
SUNNY BOY
STORAGE
2.5/3.7/5.0/6.0
(Case 1)
Energy Hub (Case 1)
Primary / Secondary Primary Primary Primary
Communication
resistor ON ON ON
[When installing 2 packs]
Inverter model
SMA SolarEdge
Other models
SUNNY BOY
STORAGE
2.5/3.7/5.0/6.0
(Case 2-1)
Energy Hub (Case 2-2)
Primary / Secondary Primary Primary Primary Secondary Refer to the inverter
installation manual.
Communication
resistor ON ON ON OFF
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Power cable is connected by combiner box. Positive and negative line should be connected
same polarity line by combiner box. Joint connection is in the combiner box. If installer
connected reverse polarity position of the power line, the battery system is not normally
operated.
Primary
Pack
Secondary
Pack
Primary Pack Secondary Pack
Combine box
Inverter
( + )
GND
( - )
( + )
GND
( - )
7.2 RMD Applications
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First, proceed with RMD Wi-Fi direct connection as shown below.
Search and access the SSID of the RMD AP from a device (hereinafter referred to as a device)
supporting WLAN Station functions such as a smartphone.
RMD SSID has a structure of “RESU_+ RMD WLAN STM MAC ADDRESS”. For the
devices below, the SSID of the RMD SoftAP is “RESU_RESU_44CBXXXC14F”.
The password is 44CBXXXC14F1234(‘44CBXXXC14F’ is RMD MAC ADDRESS, so it
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Enter the ID/Password and click ‘Join’ to go to the home screen.
ID: installer / *Password: ####1234
* ‘####’ means the last four digits of Mac Address (ex. MAC address=44CBXXXC14F, ####
= C14F)
Click the ‘Manage & Monitor’ tab to check the battery status.
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Go to ‘Monitoring’ – ‘Diag’ tab of RMD Web page and check the value in the red box. If the
value is not ‘0x0000(or 0x00)’, refer to the Trouble shooting table below and take action.
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20
Fault Name error code Support action required
Over Voltage Fault2 DiagResultFault2 0x0001 Begin RMA process with LG
Energy Solution.
Under Voltage Fault2 DiagResultFault2 0x0002 Battery pack On and check
additional errors. In case of
normal operation, charge the
battery pack to over SoC 5%
with inverter.
Begin RMA process with LG
if issue occurs repeatedly.
Over Temperature Fault2 DiagResultFault2 0x0400
1. If there is a heat source
nearby or the exhaust
of the air conditioner is
directly blowing in it,
remove the heat source.
2. Lower the temperature
down to room temperature.
Rest until Battery
temperature matches room
temperature, then turn
on the CB. Begin RMA
process with LG if issue
occurs repeatedly.
Under Temperature Fault2 DiagResultFault2 0x0800
1. If ice has built up on the
battery surface. Remove
ice.
2. Increase the temperature
up to room temperature.
Rest until Battery
temperature matches
ambient temperature, then
turn on the CB. Begin
RMA process with LG if
issue occurs repeatedly.
Over Charge Current Fault2 DiagResultFault2 0x0020 Check if the setup/wiring is
connect properly and inverter
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turn on the CB.
Begin RMA process with LG
if issue occurs repeatedly.
Over Discharge Current
Fault2 DiagResultFault2 0x0040
Over Charge Power Limit
Fault2 DiagResultFault2 0x0080
Over Discharge Power Limit
Fault2 DiagResultFault2 0x0100
External Communication
Failed (BMS-DC/DC LOC) DiagResultFault2 0x4000
Check the communication
line.
If there is no abnormality in
the communication line, turn
battery pack on and check for
additional errors.
Begin RMA process with LG
if issue occurs repeatedly.
Internal Communication
Failed (MCU-BMIC Comm.
In BMS)
DiagResultFault2 0x2000
Reconnect the cable between
Top cover assembly and
battery module assembly.
Begin RMA process with LG
if issue occurs repeatedly.
BMS Internal Fault2
DiagResultHwFault2 0x0004
Try restarting the battery.
Begin RMA process with LG
if issue occurs repeatedly.
DiagResultHwFault2 0x1000
DiagResultFault2 0x10000
DiagResultHwFault2 0x0001
DiagResultHwFault2 0x0008
DiagResultHwFault2 0x0200
DiagResultHwFault2 0x0100
DiagResultHwFault2 0x0040
DiagResultHwFault2 0x0002
DiagResultHwFault2 0x2000
Pack Under Voltage Fault2 DiagResultFault2 0x0008
Battery pack On and check
additional errors.
In case of normal operation,
Charge the Battery pack to
over SoC 5% with inverter.
Begin RMA process with LG
if issue occurs repeatedly.
Urgent Under Voltage Fault2 DiagResultFault2 0x0004 Begin RMA process with LG
Energy Solution.
Sudden Voltage Drop Fault2 DiagResultFault2 0x80000 Begin RMA process with LG
Energy Solution.
Cell Deviation Voltage Fault2 DiagResultFault2 0x4000000 Begin RMA process with LG
Energy Solution.
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the ‘Home Battery Partner’ > ‘Technical Support’ menu.
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First, proceed with RMD Wi-Fi direct connection as shown below.
Search and access the SSID of the RMD AP from a device (hereinafter referred to as a device)
supporting WLAN Station functions such as a smartphone.
RMD SSID has a structure of “RESU_+ RMD WLAN STM MAC ADDRESS”. For the
devices below, the SSID of the RMD SoftAP is “RESU_RESU_44CBXXXC14F”.
The password is 44CBXXXC14F1234(‘44CBXXXC14F’ is RMD MAC ADDRESS, so it
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Enter the ID/Password and click ‘Join’ to go to the home screen.
ID: installer / *Password: ####1234
* ‘####’ means the last four digits of Mac Address (ex. MAC address=44CBXXXC14F, ####
= C14F)
Click the ‘Update’ tab to check the battery status.