LG ARNU243S8R2 User manual

WALL-MOUNTED INDOOR UNIT
INSTALLATION MANUAL
GEN 2 Art Cool Mirror Models:
• ARNU073SER2
• ARNU093SER2
• ARNU123SER2
• ARNU153SER2
• ARNU183S8R2
• ARNU243S8R2
GEN 4 Standard Models:
• ARNU053SBL4
• ARNU073SBL4
• ARNU093SBL4
• ARNU123SBL4
• ARNU153SBL4
• ARNU183SCL4
• ARNU243SCL4
• ARNU303SVA4
• ARNU363SVA4
GEN 4 Art Cool Mirror Models:
• ARNU053SBR4
• ARNU073SBR4
• ARNU093SBR4
• ARNU123SBR4
• ARNU153SBR4
• ARNU183SCR4
• ARNU243SCR4
GEN 4 Art Cool Gallery Models:
• ARNU093SFA4
• ARNU123SFA4

The instructions included in this manual must be followed to prevent prod-
uct malfunction, property damage, injury, or death to the user or other
people. Incorrect operation due to ignoring any instructions will cause
harm or damage. A summary of safety precautions begins on page 4.
Do not throw away, destroy, or lose this manual.
Please read carefully and store in a safe place for future reference.
Content familiarity required for proper installation.
For more technical materials such as submittals, engineering
databooks, and catalogs, visit www.lghvac.com.
For continual product development, LG Electronics U.S.A., Inc., reserves the right to change specifications without notice.
©LG Electronics U.S.A., Inc.
This document, as well as all reports, illustrations, data, information, and other materials are the property of LG Electronics U.S.A., Inc.
PROPRIETARY DATA NOTICE
This document, as well as all reports, illustrations, data, information, and other
materials are the property of LG Electronics U.S.A., Inc., and are
disclosed by LG Electronics U.S.A., Inc., only in confidence.
IM_MultiV_IV_Wall_Mounted_04_16

3
Installation Manual
Due to our policy of continuous product innovation, some specifications may change without notification.
©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
TABLE OF CONTENTS
CONTENTS
Proprietary Data Notice...................................................................................................................................2
Safety Instructions...........................................................................................................................................4
Introduction......................................................................................................................................................8
Gallery and Wall-Mounted Indoor Units........................................................................................................................8
Safety...........................................................................................................................................................................8
5HTXLUHG7RROV¿HOGSURYLGHG.....................................................................................................................................9
5HTXLUHG3DUWV¿HOGSURYLGHG.....................................................................................................................................9
Unit Nomenclature......................................................................................................................................... 11
R410ARefrigerant.........................................................................................................................................12
General Data.................................................................................................................................................13
6SHFL¿FDWLRQV .............................................................................................................................................................13
Electrical Data............................................................................................................................................................20
Dimensions ................................................................................................................................................................21
Refrigerant Piping Diagrams......................................................................................................................................29
General Installation Guidelines......................................................................................................................30
Location Selection......................................................................................................................................................30
Required Clearances..................................................................................................................................................31
Unpack and Inspect for Freight Damage....................................................................................................................31
Gallery Indoor Units....................................................................................................................................................32
Wall-Mounted Indoor Units.........................................................................................................................................32
Preparing for Installation................................................................................................................................33
Gallery Indoor Units....................................................................................................................................................33
Wall-Mounted Indoor Units.........................................................................................................................................33
Mounting.....................................................................................................................................................................34
Refrigerant Piping..........................................................................................................................................37
Drilling the Piping Hole...............................................................................................................................................37
Installing the Piping....................................................................................................................................................37
Pipe Connections.......................................................................................................................................................39
Piping Preparations....................................................................................................................................................40
Insulate Refrigerant Pipes..........................................................................................................................................43
Condensate Piping........................................................................................................................................44
Install the Condensation Drain Pipe...........................................................................................................................44
Wiring............................................................................................................................................................48
Art Cool Gallery SF Chassis.......................................................................................................................................54
Standard Wall-Mounted SBL, SCL Chassis................................................................................................................55
Standard Wall-Mounted SV Chassis ..........................................................................................................................56
Art Cool Mirror SBR, SCR Chassis ............................................................................................................................57
Art Cool Mirror SE, S8 Chassis..................................................................................................................................58
Optional Wall-Mounted Sensor and Controller...........................................................................................................59
Wall-Mounted Sensor Installation...............................................................................................................................59
Wall-Mounted Controller Installation...........................................................................................................................59
Controls Setup...............................................................................................................................................60
Installation Checklist......................................................................................................................................63

4
Multi V Wall-Mounted Indoor Unit
Due to our policy of continuous product innovation, some specifications may change without notification.
©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
The instructions below must be followed to prevent product malfunction, property damage, injury or death to the user or other people. Incor-
rect operation due to ignoring any instructions will cause harm or damage. The level of seriousness is classified by the symbols below.
SAFETY INSTRUCTIONS
WARNING
Do not install, remove, or re-install the unit by yourself
(customer). Ask the dealer or an authorized technician to
install the unit.
,PSURSHULQVWDOODWLRQE\WKHXVHUPD\UHVXOWLQZDWHUOHDNDJH¿UH
explosion, electric shock, physical injury or death.
For replacement of an installed unit, always contact a trained
LG service provider.
7KHUHLVULVNRI¿UHHOHFWULFVKRFNH[SORVLRQDQGSK\VLFDOLQMXU\RUGHDWK
The outdoor unit is shipped with refrigerant and the service
valves closed. Do not open service valves on the unit until
all non-condensibles have been removed from the piping
system and authorization has been obtained from the com-
missioning agent.
There is a risk of physical injury or death.
Do not run the compressor with the service valves closed.
There is risk of explosion, physical injury, or death.
Periodically check that the outdoor unit is not damaged.
There is risk of explosion, physical injury, or death.
Replace all control box and panel covers.
,IFRYHUSDQHOVDUHQRWLQVWDOOHGVHFXUHO\GXVWZDWHUDQGDQLPDOVPD\
HQWHUWKHXQLWFDXVLQJ¿UHHOHFWULFVKRFNDQGSK\VLFDOLQMXU\RUGHDWK
Always check for system refrigerant leaks after the unit has
been installed or serviced.
([SRVXUHWRKLJKFRQFHQWUDWLRQOHYHOVRIUHIULJHUDQWJDVPD\OHDGWR
illness or death.
Do not install the unit using defective hanging, attaching,
or mounting hardware.
There is risk of physical injury or death.
Wear protective gloves when handling equipment.
Sharp edges may cause personal injury.
Dispose the packing materials safely.
•Packing materials, such as nails and other metal or wooden parts
may cause puncture wounds or other injuries.
•Tear apart and throw away plastic packaging bags so that children
may not play with them and risk suffocation and death.
Do not install the unit in any location exposed to open
ÀDPHRUH[WUHPHKHDW Do not touch the unit with wet
hands.
7KHUHLVULVNRI¿UHHOHFWULFVKRFNH[SORVLRQDQGSK\VLFDOLQMXU\RUGHDWK
Install the unit considering the potential for earthquakes.
Improper installation may cause the unit to fall, resulting in physical
injury or death.
Do not change the settings of the protection devices.
,IWKHSUHVVXUHVZLWFKWKHUPDOVZLWFKRURWKHUSURWHFWLRQGHYLFHLV
shorted and forced to operate improperly, or parts other than those
VSHFL¿HGE\/*DUHXVHGWKHUHLVULVNRI¿UHHOHFWULFVKRFNH[SORVLRQ
and physical injury or death.
If the air conditioner is installed in a small space, take mea-
sures to prevent the refrigerant concentration from exceed-
ing safety limits in the event of a refrigerant leak.
Consult the latest edition ofASHRAE (American Society of Heating,
5HIULJHUDWLQJDQG$LU&RQGLWLRQLQJ(QJLQHHUV6WDQGDUG,IWKHUH-
frigerant leaks and safety limits are exceeded, it could result in personal
injuries or death from oxygen depletion
DANGER 7KLVV\PEROLQGLFDWHVDQLPPLQHQWO\KD]DUGRXVVLWXDWLRQZKLFKLIQRWDYRLGHGZLOOUHVXOWLQGHDWKRU
serious injury.
WARNING 7KLVV\PEROLQGLFDWHVDSRWHQWLDOO\KD]DUGRXVVLWXDWLRQZKLFKLIQRWDYRLGHGFRXOGUHVXOWLQGHDWKRU
serious injury.
CAUTION 7KLVV\PEROLQGLFDWHVDSRWHQWLDOO\KD]DUGRXVVLWXDWLRQZKLFKLIQRWDYRLGHGPD\UHVXOWLQPLQRURU
moderate injury.
Note:
This symbol Indicates situations that may result in equipment or property damage accidents only.
This symbol indicates an action that should not be performed.
TABLE OF SYMBOLS
INSTALLATION
DANGER
'RQ¶WXVHRUVWRUHÀDPPDEOHJDVRUFRPEXVWLEOHVQHDUWKHXQLW
7KHUHLVULVNRISURGXFWIDLOXUH¿UHH[SORVLRQDQGSK\VLFDOLQMXU\RUGHDWK

5
Installation Manual
Due to our policy of continuous product innovation, some specifications may change without notification.
©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
CAUTION
Be very careful when transporting the product.
•Do not attempt to carry the product without assistance.
•Some products use polypropylene bands for packaging. Do not use polypropylene bands to lift the unit.
•Suspend the unit from the base at specified positions.
•6XSSRUWWKHXQLWDPLQLPXPRIIRXUSRLQWVWRDYRLGVOLSSDJHIURPULJJLQJDSSDUDWXV
SAFETY INSTRUCTIONS
INSTALLATION – CONTINUED
Note:
Properly insulate all cold surfaces to prevent “sweating.”
Cold surfaces such as uninsulated pipe can generate condensate that may
GULSDQGFDXVHDVOLSSHU\ÀRRUFRQGLWLRQDQGRUZDWHUGDPDJHWRZDOOV
When installing the unit in a hospital, mechanical room, or
VLPLODUHOHFWURPDJQHWLF¿HOG(0)VHQVLWLYHHQYLURQPHQW
SURYLGHVXI¿FLHQWSURWHFWLRQDJDLQVWHOHFWULFDOQRLVH
,QYHUWHUHTXLSPHQWSRZHUJHQHUDWRUVKLJKIUHTXHQF\PHGLFDOHTXLS
ment, or radio communication equipment may cause the air conditioner to
operate improperly. The unit may also affect such equipment by creating
electrical noise that disturbs medical treatment or image broadcasting.
Do not use the product for special purposes such as pre-
serving foods, works of art, wine coolers, or other precision
air conditioning applications. This equipment is designed to
provide comfort cooling and heating.
There is risk of property damage.
Do not make refrigerant substitutions. Use R410A only.
If a different refrigerant is used, or air mixes with original refrigerant, the
unit will malfunction and be damaged.
Do not install the unit in a noise sensitive area.
When connecting refrigerant tubing, remember to allow for
pipe expansion.
Improper piping may cause refrigerant leaks and system malfunction.
Take appropriate actions at the end of HVAC equipment life
to recover, recycle, reclaim or destroy R410A refrigerant ac-
cording to applicable U.S. Environmental Protection Agency
(EPA) rules.
Periodically check that the outdoor unit is not damaged.
There is a risk of equipment damage.
Install the unit in a safe location where no one can step on or
fall onto it. Do not install the unit with defective hanging,
attaching, or mounting hardware.
There is risk of unit and property damage.
Install the drain hose to ensure adequate drainage.
There is a risk of water leakage and property damage.
'RQ¶WVWRUHRUXVHÀDPPDEOHJDVFRPEXVWLEOHVQHDUWKH
unit.
There is risk of product failure.
Always check for system refrigerant leaks after the unit has
been installed or serviced.
/RZUHIULJHUDQWOHYHOVPD\FDXVHSURGXFWIDLOXUH
The unit is shipped with refrigerant and the service valves
closed. Do not open service valves on the unit until all
non-condensibles have been removed from the piping sys-
tem and authorization to do so has been obtained from the
commissioning agent.
There is a risk of refrigerant contamination, refrigerant loss and equip-
ment damage.

6
Multi V Wall-Mounted Indoor Unit
Due to our policy of continuous product innovation, some specifications may change without notification.
©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
SAFETY INSTRUCTIONS
WIRING
DANGER
High voltage electricity is required to operate this system.
Adhere to the National Electrical Codes and these
instructions when wiring.
Improper connections and inadequate grounding can cause accidental
injury or death.
Always ground the unit following local, state, and National
Electrical Codes.
Turn the power off at the nearest disconnect before servicing
the equipment.
Electric shock can cause physical injury or death.
Properly size all circuit breakers or fuses.
7KHUHLVULVNRI¿UHHOHFWULFVKRFNH[SORVLRQSK\VLFDOLQMXU\RUGHDWK
WARNING
The information contained in this manual is intended for use
E\DQLQGXVWU\TXDOL¿HGH[SHULHQFHGFHUWL¿HGHOHFWULFLDQ
familiar with the U.S. National Electric Code (NEC) who is
equipped with the proper tools and test instruments.
Failure to carefully read and follow all instructions in this manual can
result in equipment malfunction, property damage, personal injury or
death.
Ensure the unit is connected to a dedicated power source
that provides adequate power.
If the power source capacity is inadequate or the electric work is not per-
IRUPHGSURSHUO\LWPD\UHVXOWLQ¿UHHOHFWULFVKRFNSK\VLFDOLQMXU\RUGHDWK
Refer to local, state, and federal codes, and use power wires
RIVXI¿FLHQWFXUUHQWFDSDFLW\DQGUDWLQJ
:LUHVWKDWDUHWRRVPDOOPD\JHQHUDWHKHDWDQGFDXVHD¿UH
6HFXUHDOO¿HOGZLULQJFRQQHFWLRQVZLWKDSSURSULDWHZLUH
strain relief.
Improperly securing wires will create undue stress on equipment power
OXJV,QDGHTXDWHFRQQHFWLRQVPD\JHQHUDWHKHDWFDXVHD¿UHDQG
physical injury or death.
Properly tighten all power connections.
/RRVHZLULQJPD\RYHUKHDWDWFRQQHFWLRQSRLQWVFDXVLQJD¿UHSK\VLFDO
injury or death.
Note:
Do not cut, lengthen or shorten the communications and
power cable between any dry contact unit and its connected
indoor unit. Do not install the unit in a location where the
communications and power cable cannot be safely and easily
connected between the two units. Do not allow strain on this
cable.
Poor cable connections can cause equipment malfunction.

7
Installation Manual
Due to our policy of continuous product innovation, some specifications may change without notification.
©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
OPERATION
DANGER
'RQRWSURYLGHSRZHUWRRURSHUDWHWKHXQLWLILWLVÀRRGHG
or submerged.
7KHUHLVULVNRI¿UHHOHFWULFVKRFNSK\VLFDOLQMXU\RUGHDWK
Use a dedicated power source for this product.
7KHUHLVULVNRI¿UHHOHFWULFVKRFNSK\VLFDOLQMXU\RUGHDWK
Do not operate the disconnect switch with wet hands.
7KHUHLVULVNRI¿UHHOHFWULFVKRFNSK\VLFDOLQMXU\RUGHDWK
Periodically verify the hanging bolts and other hardware
securing the unit have not deteriorated.
If the unit falls from its installed location, it can cause property damage,
product failure, physical injury or death.
If refrigerant gas leaks out, ventilate the area before operat-
ing the unit.
,IWKHXQLWLVPRXQWHGLQDQHQFORVHGORZO\LQJRUSRRUO\YHQWLODWHGDUHD
DQGWKHV\VWHPGHYHORSVDUHIULJHUDQWOHDNLWPD\FDXVH¿UHHOHFWULF
shock, explosion, physical injury or death.
SAFETY INSTRUCTIONS
Note:
&OHDQXSWKHVLWHDIWHULQVWDOODWLRQLV¿QLVKHGDQGFKHFN
that no metal scraps, screws, or bits of wiring have been left
inside or surrounding the unit.
Do not use this equipment in mission critical or special-
purpose applications such as preserving foods, works of art,
wine coolers or refrigeration. This equipment is designed to
provide comfort cooling and heating.
Provide power to the compressor crankcase heaters at least
six (6) hours before operation begins.
6WDUWLQJRSHUDWLRQZLWKDFROGFRPSUHVVRUVXPSVPD\UHVXOWLQVHYHUH
EHDULQJGDPDJHWRWKHFRPSUHVVRUV.HHSWKHSRZHUVZLWFKRQGXULQJ
the operational season.
Do not block the inlet or outlet.
Unit may malfunction.
Securely attach the electrical cover to the indoor unit. Non-
VHFXUHGFRYHUVFDQUHVXOWLQ¿UHGXHWRGXVWRUZDWHULQWKH
service panel.
Periodically verify the equipment mounts have not deterio-
rated.
If the base collapses, the unit could fall and cause property damage or
product failure.
Do not allow water, dirt, or animals to enter the unit.
There is risk of unit failure.
WARNING
Do not allow water, dirt, or animals to enter the unit.
7KHUHLVULVNRIXQLWIDLOXUH¿UHHOHFWULFVKRFNSK\VLFDOLQMXU\RUGHDWK
Avoid excessive cooling and periodically perform ventilation
to the unit.
,QDGHTXDWHYHQWLODWLRQLVDKHDOWKKD]DUG
Do not touch the refrigerant piping during or after operation.
It can cause burns or frostbite.
Do not operate the unit with the panel(s) or protective
FRYHUVUHPRYHGNHHS¿QJHUVDQGFORWKLQJDZD\IURP
moving parts.
7KHURWDWLQJKRWFROGDQGKLJKYROWDJHSDUWVRIWKHXQLWFDQFDXVH
physical injury or death.
Periodically check power cable and connection for damage.
&DEOHPXVWEHUHSODFHGE\WKHPDQXIDFWXUHULWVVHUYLFHDJHQWRUVLPLODU
TXDOL¿HGSHUVRQVLQRUGHUWRDYRLGSK\VLFDOLQMXU\DQGRUHOHFWULFVKRFN
Do not open the inlet grille of the unit during operation.
Do not operate the unit with the panels or guards removed.
Do not insert hands or other objects through the inlet or
outlet when the unit is powered. Do not touch the electro-
VWDWLF¿OWHULIWKHXQLWLQFOXGHVRQH
7KHXQLWFRQWDLQVVKDUSURWDWLQJKRWDQGKLJKYROWDJHSDUWVWKDWFDQ
FDXVHSHUVRQDOLQMXU\DQGRUHOHFWULFVKRFN
Ensure no power is connected to the unit other than as
directed in this manual. Remove power from the unit before
removing or servicing the unit.
7KHUHLVULVNRIXQLWIDLOXUH¿UHHOHFWULFVKRFNSK\VLFDOLQMXU\RUGHDWK
Securely attach the electrical cover to the unit.
1RQVHFXUHGHOHFWULFDOFRYHUVFDQUHVXOWLQEXUQVRUHOHFWULFVKRFNGXHWR
GXVWRUZDWHULQWKHVHUYLFHSDQHO
CAUTION
To avoid physical injury, use caution when cleaning or
servicing the air conditioner.

8
Multi V Wall-Mounted Indoor Unit
Due to our policy of continuous product innovation, some specifications may change without notification.
©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
INTRODUCTION
Gallery and Wall-Mounted Indoor
Units
This manual describes how to install LGArt Cool™ Gallery, Stan-
dard, andArt Cool™ Mirror Wall-Mounted indoor units (IDU) for Multi
V Variable Refrigerant Flow (VRF) heat pump and heat recovery
systems. Table 1 lists the available models. Refer to LG’s Multi V
Indoor Unit Engineering Manual for complete detailed engineering
data and selection procedures.
Safety
Safety of personnel is the primary concern during all procedures.
Read and understand the safety summary at the front of this manual.
Read and understand this installation procedure before beginning
installation. Use the appropriate tools and accessories during instal-
lation. Plan your work and do not work alone, if possible. Know how
to obtain emergency medical and fire fighting assistance.
Installation Personnel
This equipment is intended for installation by personnel trained
in the required construction, mechanical, electrical, and/or other
disciplines.
Applicable Codes
Personnel must be familiar with and follow the applicable national,
state, and/or local codes. In the event of a conflict between any
applicable code and the instructions in this manual, comply with the
applicable code.
WARNING
Installation work must be performed by trained personnel and in ac-
cordance with national wiring standards and all local or other applicable
FRGHV,PSURSHULQVWDOODWLRQFDQUHVXOWLQ¿UHHOHFWULFVKRFNSK\VLFDO
LQMXU\RUGHDWKDQGFDQSUHYHQWSURSHURSHUDWLRQRIWKHXQLW
Note:
Please read all instructions before installing this product. Become familiar
with the unit’s components and connections, and the order of installation.
,QFRUUHFWLQVWDOODWLRQFDQGHJUDGHRUSUHYHQWSURSHURSHUDWLRQ
Figure 1: Art Cool Gallery (Gen 4) Indoor Unit.
Figure 2: Standard andArt Cool Mirror (Gen 4)
Wall-Mounted Indoor Unit.
Figure 3: Art Cool Mirror (Gen 2) Wall-Mounted Indoor Unit.

9
Installation Manual
Due to our policy of continuous product innovation, some specifications may change without notification.
©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
Art Cool Mirror (Gen 2) Wall-Mounted Indoor Units
• Installation plate (One [1] Each)
• Type “A” screws (Four [4] Each)
• Plastic anchors (Four [4] Each)
• Type “B” screws (Two [2] Each)
Standard and Art Cool Mirror (Gen 4) Wall-Mounted Indoor Units
• Installation plate (One [1] Each)
• Type “A” screws (Five [5] Each)
• Plastic anchors (Five [5] Each)
• Type “B” screws (Two [2] Each)
Required Parts (factory provided) Required Parts (field provided)
• Connecting cable (power and control)
• Pipes - vapor line and liquid line, with insulation
• Additional drain hose
Art Cool Gallery (Gen 4) Indoor Units
• Installation guide (One [1] Each)
• Type “A” screws (Four [4] Each)
• Plastic anchors (Four [4] Each)
• Level
• JIS and other screwdrivers
• Electrical lineman pliers
• Electric drill
• Holesaw
• Drill
• Flaring tool set
• Tubing cutter
• Tube/pipe reamer
• Torque wrenches
• Allen wrench
• Gas-leak detector
• Thermometer
Required Tools (field provided)
INTRODUCTION

10
Multi V Wall-Mounted Indoor Unit
Due to our policy of continuous product innovation, some specifications may change without notification.
©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
Unit Model Number
ARTCOOL Gallery (Gen 4) ARNU093SFA4
ARNU123SFA4
Standard (Gen 4) ARNU053SBL4
ARNU073SBL4
ARNU093SBL4
ARNU123SBL4
ARNU153SBL4
ARNU183SCL4
ARNU243SCL4
Standard (Gen 4) ARNU303SVA4
ARNU363SVA4
ARTCOOL Mirror (Gen 4) ARNU053SBR4
ARNU073SBR4
ARNU093SBR4
ARNU123SBR4
ARNU153SBR4
ARNU183SCR4
ARNU243SCR4
ARTCOOL Mirror (Gen 2) ARNU073SER2
ARNU093SER2
ARNU123SER2
ARNU153SER2
ARNU183S8R2
ARNU243S8R2
Table 1: Multi V Gallery and Wall-Mounted Indoor Units
INTRODUCTION

11
Installation Manual
Due to our policy of continuous product innovation, some specifications may change without notification.
©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
Wall-Mounted Indoor Units Nomenclature
UNIT NOMENCLATURE
ARN U09 3SF A
Generation
2 = Second
4 = Fourth
A= Second, Revision A
Electrical Ratings
3 = 208–230V/60Hz/1Ph
05 = 5,000 Btu/h
07 = 7,000 Btu/h
09 = 9,000 Btu/h
12 = 12,000 Btu/h
15 = 15,000 Btu/h
18 = 18,000 Btu/h
24 = 24,000 Btu/h
28 = 28,000 Btu/h
30 = 30,000 Btu/h
36 = 36,000 Btu/h
42 = 42,000 Btu/h
48 = 48,000 Btu/h
54 = 54,000 Btu/h
76 = 76,000 Btu/h
96 = 96,000 Btu/h
Type
U = DC Inverter Heat Pump
Family
ARN = Multi V Indoor Unit
(Refrigerant R410A)
S8 = Wall Mounted /Art Cool™ Mirror
SB = Wall Mounted /Art Cool Mirror
SC = Wall Mounted /Art Cool Mirror
SE = Wall Mounted /Art Cool Mirror
SF =Art Cool Gallery
SV = Wall Mounted
A, C, L, R = Standard
A
A
A
A
A
A
Indoor Unit Nominal Capacity
Model
4
Feature
)LOWHUDFFHVVRULHVDUHDYDLODEOHVHSDUDWHO\$OZD\VIROORZDOOORFDOVWDWHDQGQDWLRQDOEXLOGLQJFRGHVZLWKWKHXVHRIWKLVRUDQ\
product.

12
Multi V Wall-Mounted Indoor Unit
Due to our policy of continuous product innovation, some specifications may change without notification.
©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
R410A REFRIGERANT
R410A Refrigerant
R410Arefrigerant has a higher operating pressure in comparison to R22 refrigerant and, therefore, all piping system materials installed must
have a higher resisting pressure than the materials traditionally used in R22 systems.
R410Arefrigerant is an azeotrope of R32 and R125, mixed at 50:50, so the ozone depletion potential (ODP) is 0.
WARNING
'RQRWSODFHUHIULJHUDQWF\OLQGHULQGLUHFWVXQOLJKW5HIULJHUDQWF\OLQGHUPD\H[SORGHFDXVLQJVHYHUHLQMXU\RUGHDWK
Note
•Because R410Ais a combination of R32 and R125, the required additional refrigerant must be charged in its liquid state. If the refrigerant is
charged in its gaseous state, its composition changes and the system will not work properly.
•Do not heat piping more than necessary during installation. Piping may become soft and fail when pressurized.
•'RQRWXVHDQ\SLSLQJWKDWKDVQRWEHHQDSSURYHGIRUXVHLQKLJKSUHVVXUHUHIULJHUDQWV\VWHPV3LSLQJZDOOWKLFNQHVVPXVWFRPSO\ZLWK
the applicable local, state, and federal codes for the 551 psi design pressure of R410A. Inadequate piping may fail when pressurized.

13
Installation Manual
Due to our policy of continuous product innovation, some specifications may change without notification.
©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
GENERAL DATA
6SHFL¿FDWLRQV
Table 2: $UW&RRO*DOOHU\8QLWV6SHFL¿FDWLRQV
Type Art Cool Gallery – SF Chassis
ARNU093SFA4 ARNU123SFA4
Cooling Mode Performance
Capacity (Btu/h) 9,600 12,300
Power Input1(W) 35 35
Heating Mode Performance
Capacity (Btu/h) 10,900 13,600
Power Input1(W) 35 35
Entering MixedAir
Cooling Max (°F WB) 76 76
Heating Min (°F DB) 59 59
Unit Data
Refrigerant Type2R410A R410A
Refrigerant Control EEV EEV
Sound Pressure3dB(A) (H/M/L) 38 / 32 / 27 44 / 38 / 32
Net Unit Weight (lbs.) 33.1 33.1
Shipping Weight (lbs.) 38.1 38.1
Communication Cable4
(No. xAWG) 2 x 18 2 x 18
Fan
Type Turbo Fan Turbo Fan
Quantity 11
Motor/Drive Brushless Digitally Controlled / Direct
Airflow Rate H/M/L (CFM) 286 / 222 / 148 328 / 272 / 212
Piping
Liquid Line (in., O.D.) 1/4 Flare 1/4 Flare
Vapor Line (in., O.D.) 1/2 Flare 1/2 Flare
Condensate Line (in., I.D.) 5/8 5/8
EEV: Electronic Expansion Valve
Power wiring is field supplied and must comply with the applicable local and national
codes.
This unit comes with a dry nitrogen charge.
This data is rated 0 ft above sea level, with 25 ft of refrigerant line per indoor unit and a 0 ft
level difference between outdoor and indoor units. All capacities are net with a combina-
tion ratio between 95-105%.
Cooling capacity rating obtained with air entering the indoor coil at 80ºF dry bulb (DB) and
67ºF wet bulb (WB) and outdoor ambient conditions of 95ºF dry bulb (DB).
Heating capacity rating obtained with air entering the indoor unit at 70ºF dry bulb (DB) and
outdoor ambient conditions of 47ºF dry bulb (DB) and 43ºF wet bulb (WB).
1Power Input is rated at high speed.
2Take appropriate actions at the end of HVAC equipment life to recover, recycle, reclaim or
destroy R410Arefrigerant according to applicable regulations (40 CFR Part 82, Subpart F)
under section 608 of CAA.
3Sound Pressure levels are tested in an anechoic chamber under ISO Standard 3745.
4All communication cable to be minimum 18AWG, 2-conductor, stranded, shielded and
must comply with applicable and national code. Ensure the communication cable is prop-
erly grounded at the master outdoor unit only. Do not ground the ODU-IDU communica-
tion cable at any other point.

14
Multi V Wall-Mounted Indoor Unit
Due to our policy of continuous product innovation, some specifications may change without notification.
©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
Table 3: 6WDQGDUG*HQ:DOO0RXQWHG8QLWV6SHFL¿FDWLRQV
GENERAL DATA
6SHFL¿FDWLRQV
Type Standard Wall-Mounted – SB Chassis
ARNU053SBL4 ARNU073SBL4 ARNU093SBL4 ARNU123SBL4 ARNU153SBL4
Cooling Mode Performance
Capacity (Btu/h) 5,500 7,500 9,600 12,300 15,400
Power Input1(W) 21 21 21 21 21
Heating Mode Performance
Capacity (Btu/h) 6,100 8,500 10,900 13,600 17,100
Power Input1(W) 21 21 21 21 21
Entering MixedAir
Cooling Max (°F WB) 76 76 76 76 76
Heating Min (°F DB) 59 59 59 59 59
Unit Data
Refrigerant Type2R410A R410A R410A R410A R410A
Refrigerant Control EEV EEV EEV EEV EEV
Sound Pressure3dB(A) (H/M/L) 30 / 29 / 28 32 / 30 / 28 34 / 32 / 28 37 / 34 / 30 40 / 36 / 32
Net Unit Weight (lbs.) 22 22 22 22 22
Shipping Weight (lbs.) 26 26 26 26 26
Communication Cable4
(No. xAWG) 2 x 18 2 x 18 2 x 18 2 x 18 2 x 18
Fan
Type Cross Flow Cross Flow Cross Flow Cross Flow Cross Flow
Quantity 11111
Motor/Drive Brushless Digitally Controlled / Direct
Airflow Rate H/M/L (CFM) 230 / 212 / 194 247 / 230 / 194 290 / 247 / 194 336 / 290 / 230 371 / 318 / 247
Piping
Liquid Line (in., O.D.) 1/4 Flare 1/4 Flare 1/4 Flare 1/4 Flare 1/4 Flare
Vapor Line (in., O.D.) 1/2 Flare 1/2 Flare 1/2 Flare 1/2 Flare 1/2 Flare
Condensate Line (in., I.D.) 5/8 5/8 5/8 5/8 5/8
EEV: Electronic Expansion Valve
Power wiring is field supplied and must comply with the applicable local and national
codes.
This unit comes with a dry nitrogen charge.
This data is rated 0 ft above sea level, with 25 ft of refrigerant line per indoor unit and a 0 ft
level difference between outdoor and indoor units. All capacities are net with a combina-
tion ratio between 95-105%.
Cooling capacity rating obtained with air entering the indoor coil at 80ºF dry bulb (DB) and
67ºF wet bulb (WB) and outdoor ambient conditions of 95ºF dry bulb (DB).
Heating capacity rating obtained with air entering the indoor unit at 70ºF dry bulb (DB) and
outdoor ambient conditions of 47ºF dry bulb (DB) and 43ºF wet bulb (WB).
1Power Input is rated at high speed.
2Take appropriate actions at the end of HVAC equipment life to recover, recycle, reclaim or
destroy R410Arefrigerant according to applicable regulations (40 CFR Part 82, Subpart F)
under section 608 of CAA.
3Sound Pressure levels are tested in an anechoic chamber under ISO Standard 3745.
4All communication cable to be minimum 18AWG, 2-conductor, stranded, shielded and
must comply with applicable and national code. Ensure the communication cable is prop-
erly grounded at the master outdoor unit only. Do not ground the ODU-IDU communica-
tion cable at any other point.

15
Installation Manual
Due to our policy of continuous product innovation, some specifications may change without notification.
©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
GENERAL DATA
Table 4: 6WDQGDUG*HQ:DOO0RXQWHG,QGRRU8QLWV6SHFL¿FDWLRQV±FRQWLQXHG
6SHFL¿FDWLRQV
Type Standard Wall-Mounted – SC Chassis Standard Wall-Mounted – SV Chassis
ARNU183SCL4 ARNU243SCL4 ARNU303SVA4 ARNU363SVA4
Cooling Mode Performance
Capacity (Btu/h) 19,100 24,200 30,000 35,500
Power Input1(W) 39.5 39.5 67.0 104.0
Heating Mode Performance
Capacity (Btu/h) 21,500 27,300 32 000 37 000
Power Input1(W) 39.5 39.5 67.0 104.0
Entering MixedAir
Cooling Max (°F WB) 76 76 76 76
Heating Min (°F DB) 59 59 59 59
Unit Data
Refrigerant Type2R410A R410A R410A R410A
Refrigerant Control EEV EEV EEV EEV
Sound Pressure3dB(A) (H/M/L) 38 / 35 / 33 43 / 39 / 35 49 / 44 / 42 52 / 47 / 43
Net Unit Weight (lbs.) 31 31 37 37
Shipping Weight (lbs.) 37 37 48 48
Communication Cable4(No. xAWG) 2 x 18 2 x 18 2 x 18 2 x 18
Fan
Type Cross Flow Cross Flow Cross Flow Cross Flow
Quantity 1111
Motor/Drive Brushless Digitally Controlled / Direct
Airflow Rate H/M/L (CFM) 441 / 424 / 399 494 / 449 / 406 812 / 706 / 600 918 / 812 / 671
Piping
Liquid Line (in., O.D.) 1/4 Flare 3/8 Flare 3/8 Flare 3/8 Flare
Vapor Line (in., O.D.) 1/2 Flare 5/8 Flare 5/8 Flare 5/8 Flare
Condensate Line (in., I.D.) 5/8 5/8 5/8 5/8
EEV: Electronic Expansion Valve
Power wiring is field supplied and must comply with the applicable local and national
codes.
This unit comes with a dry nitrogen charge.
This data is rated 0 ft above sea level, with 25 ft of refrigerant line per indoor unit and a 0 ft
level difference between outdoor and indoor units. All capacities are net with a combina-
tion ratio between 95-105%.
Cooling capacity rating obtained with air entering the indoor coil at 80ºF dry bulb (DB) and
67ºF wet bulb (WB) and outdoor ambient conditions of 95ºF dry bulb (DB).
Heating capacity rating obtained with air entering the indoor unit at 70ºF dry bulb (DB) and
outdoor ambient conditions of 47ºF dry bulb (DB) and 43ºF wet bulb (WB).
1Power Input is rated at high speed.
2Take appropriate actions at the end of HVAC equipment life to recover, recycle, reclaim or
destroy R410Arefrigerant according to applicable regulations (40 CFR Part 82, Subpart F)
under section 608 of CAA.
3Sound Pressure levels are tested in an anechoic chamber under ISO Standard 3745.
4All communication cable to be minimum 18AWG, 2-conductor, stranded, shielded and
must comply with applicable and national code. Ensure the communication cable is prop-
erly grounded at the master outdoor unit only. Do not ground the ODU-IDU communica-
tion cable at any other point.

16
Multi V Wall-Mounted Indoor Unit
Due to our policy of continuous product innovation, some specifications may change without notification.
©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
GENERAL DATA
6SHFL¿FDWLRQV
Table 5: $UW&RRO0LUURU*HQ:DOO0RXQWHG,QGRRU8QLWV6SHFL¿FDWLRQV
EEV: Electronic Expansion Valve
Power wiring is field supplied and must comply with the applicable local and national
codes.
This unit comes with a dry nitrogen charge.
This data is rated 0 ft above sea level, with 25 ft of refrigerant line per indoor unit and a 0 ft
level difference between outdoor and indoor units. All capacities are net with a combina-
tion ratio between 95-105%.
Cooling capacity rating obtained with air entering the indoor coil at 80ºF dry bulb (DB) and
67ºF wet bulb (WB) and outdoor ambient conditions of 95ºF dry bulb (DB).
Heating capacity rating obtained with air entering the indoor unit at 70ºF dry bulb (DB) and
outdoor ambient conditions of 47ºF dry bulb (DB) and 43ºF wet bulb (WB).
1Power Input is rated at high speed.
2Take appropriate actions at the end of HVAC equipment life to recover, recycle, reclaim or
destroy R410Arefrigerant according to applicable regulations (40 CFR Part 82, Subpart F)
under section 608 of CAA.
3Sound Pressure levels are tested in an anechoic chamber under ISO Standard 3745.
4All communication cable to be minimum 18AWG, 2-conductor, stranded, shielded and
must comply with applicable and national code. Ensure the communications cable is prop-
erly grounded at the master outdoor unit only. Do not ground the ODU-IDU communica-
tions cable at any other point.
Type Art Cool Mirror (Gen 4) Wall-Mounted – SB Chassis
ARNU053SBR4 ARNU073SBR4 ARNU093SBR4 ARNU123SBR4 ARNU153SBR4
Cooling Mode Performance
Capacity (Btu/h) 5,500 7,500 9,600 12,300 15,400
Power Input1(W) 21 21 21 21 21
Heating Mode Performance
Capacity (Btu/h) 6,100 8,500 10,900 13,600 17,100
Power Input1(W) 21 21 21 21 21
Entering MixedAir
Cooling Max (°F WB) 76 76 76 76 76
Heating Min (°F DB) 59 59 59 59 59
Unit Data
Refrigerant Type2 R410A R410A R410A R410A R410A
Refrigerant Control EEV EEV EEV EEV EEV
Sound Pressure3dB(A)
(H/M/L) 30 / 29 / 28 32 / 30 / 28 34 / 32 / 28 37 / 34 / 30 40 / 36 / 32
Net Unit Weight (lbs.) 24 24 24 24 24
Shipping Weight (lbs.) 29 29 29 29 29
Communication Cable4
(No. xAWG) 2 x 18 2 x 18 2 x 18 2 x 18 2 x 18
Fan
Type Cross Flow Cross Flow Cross Flow Cross Flow Cross Flow
Quantity 11111
Motor/Drive Brushless Digitally Controlled / Direct
Airflow Rate H/M/L (CFM) 230 / 212 / 194 247 / 230 / 194 290 / 247 / 194 336 / 290 / 230 371 / 318 / 247
Piping
Liquid Line (in., O.D.) 1/4 Flare 1/4 Flare 1/4 Flare 1/4 Flare 1/4 Flare
Vapor Line (in., O.D.) 1/2 Flare 1/2 Flare 1/2 Flare 1/2 Flare 1/2 Flare
Condensate Line (in., I.D.) 5/8 5/8 5/8 5/8 5/8

17
Installation Manual
Due to our policy of continuous product innovation, some specifications may change without notification.
©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
GENERAL DATA
6SHFL¿FDWLRQV
Table 6: $UW&RRO0LUURU*HQ:DOO0RXQWHG,QGRRU8QLWV6SHFL¿FDWLRQV±FRQWLQXHG
Type Art Cool Mirror (Gen 4) Wall-Mounted – SC Chassis
ARNU183SCR4 ARNU243SCR4
Cooling Mode Performance
Capacity (Btu/h) 19,100 24,200
Power Input1(W) 39.5 39.5
Heating Mode Performance
Capacity (Btu/h) 21,500 27,300
Power Input1(W) 39.5 39.5
Entering MixedAir
Cooling Max (°F WB) 76 76
Heating Min (°F DB) 59 59
Unit Data
Refrigerant Type2R410A R410A
Refrigerant Control EEV EEV
Sound Pressure3dB(A) (H/M/L) 38 / 35 / 33 43 / 39 / 35
Net Unit Weight (lbs.) 34 34
Shipping Weight (lbs.) 40 40
Communication Cable4(No. xAWG) 2 x 18 2 x 18
Fan
Type Cross Flow Cross Flow
Quantity 11
Motor/Drive Brushless Digitally Controlled / Direct
Airflow Rate H/M/L (CFM) 441 / 424 / 399 494 / 449 / 406
Piping
Liquid Line (in., O.D.) 1/4 Flare 3/8 Flare
Vapor Line (in., O.D.) 1/2 Flare 5/8 Flare
Condensate Line (in., I.D.) 5/8 5/8
EEV: Electronic Expansion Valve
Power wiring is field supplied and must comply with the applicable local and national
codes.
This unit comes with a dry nitrogen charge.
This data is rated 0 ft above sea level, with 25 ft of refrigerant line per indoor unit and a 0 ft
level difference between outdoor and indoor units. All capacities are net with a combina-
tion ratio between 95-105%.
Cooling capacity rating obtained with air entering the indoor coil at 80ºF dry bulb (DB) and
67ºF wet bulb (WB) and outdoor ambient conditions of 95ºF dry bulb (DB).
Heating capacity rating obtained with air entering the indoor unit at 70ºF dry bulb (DB) and
outdoor ambient conditions of 47ºF dry bulb (DB) and 43ºF wet bulb (WB).
1Power Input is rated at high speed.
2Take appropriate actions at the end of HVAC equipment life to recover, recycle, reclaim or
destroy R410Arefrigerant according to applicable regulations (40 CFR Part 82, Subpart F)
under section 608 of CAA.
3Sound Pressure levels are tested in an anechoic chamber under ISO Standard 3745.
4All communication cable to be minimum 18AWG, 2-conductor, stranded, shielded and
must comply with applicable and national code. Ensure the communications cable is prop-
erly grounded at the master outdoor unit only. Do not ground the ODU-IDU communica-
tions cable at any other point.

18
Multi V Wall-Mounted Indoor Unit
Due to our policy of continuous product innovation, some specifications may change without notification.
©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
GENERAL DATA
Table 7: $UW&RRO0LUURU*HQ:DOO0RXQWHG,QGRRU8QLWV6SHFL¿FDWLRQV
6SHFL¿FDWLRQV
EEV: Electronic Expansion Valve
Power wiring is field supplied and must comply with the applicable local and national
codes.
This unit comes with a dry nitrogen charge.
This data is rated 0 ft above sea level, with 25 ft of refrigerant line per indoor unit and a 0 ft
level difference between outdoor and indoor units. All capacities are net with a combina-
tion ratio between 95-105%.
Cooling capacity rating obtained with air entering the indoor coil at 80ºF dry bulb (DB) and
67ºF wet bulb (WB) and outdoor ambient conditions of 95ºF dry bulb (DB).
Heating capacity rating obtained with air entering the indoor unit at 70ºF dry bulb (DB) and
outdoor ambient conditions of 47ºF dry bulb (DB) and 43ºF wet bulb (WB).
1Power Input is rated at high speed.
2Take appropriate actions at the end of HVAC equipment life to recover, recycle, reclaim or
destroy R410Arefrigerant according to applicable regulations (40 CFR Part 82, Subpart F)
under section 608 of CAA.
3Sound Pressure levels are tested in an anechoic chamber under ISO Standard 3745.
4All communication cable to be minimum 18AWG, 2-conductor, stranded, shielded and
must comply with applicable and national code. Ensure the communications cable is prop-
erly grounded at the master outdoor unit only. Do not ground the ODU-IDU communica-
tions cable at any other point.
Type Art Cool Mirror (Gen 2) Wall-Mounted – SE Chassis
ARNU073SER2 ARNU093SER2 ARNU123SER2 ARNU153SER2
Cooling Mode Performance
Capacity (Btu/h) 7,500 9,600 12,300 15,400
Power Input1(W) 40 40 40 40
Heating Mode Performance
Capacity (Btu/h) 8,500 10,900 13,600 17,100
Power Input1(W) 40 40 40 40
Entering MixedAir
Cooling Max (°F WB) 76 76 76 76
Heating Min (°F DB) 59 59 59 59
Unit Data
Refrigerant Type2R410A R410A R410A R410A
Refrigerant Control EEV EEV EEV EEV
Sound Pressure3dB(A) (H/M/L) 37 / 33 / 23 39 / 35 / 25 41 / 36 / 27 42 / 36 / 27
Net Unit Weight (lbs.) 25 25 25 25
Shipping Weight (lbs.) 29 29 29 29
Communication Cable4(No. xAWG) 2 x 18 2 x 18 2 x 18 2 x 18
Fan
Type Cross Flow Cross Flow Cross Flow Cross Flow
Quantity 1111
Motor/Drive Brushless Digitally Controlled / Direct
Airflow Rate H/M/L (CFM) 247 / 212 / 141 282 / 247 / 177 353 / 283 / 212 371 / 283 / 212
Piping
Liquid Line (in., O.D.) 1/4 Flare 1/4 Flare 1/4 Flare 1/4 Flare
Vapor Line (in., O.D.) 1/2 Flare 1/2 Flare 1/2 Flare 1/2 Flare
Condensate Line (in., I.D.) 5/8 5/8 5/8 5/8

19
Installation Manual
Due to our policy of continuous product innovation, some specifications may change without notification.
©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
GENERAL DATA
Table 8: $UW&RRO0LUURU*HQ:DOO0RXQWHG,QGRRU8QLWV6SHFL¿FDWLRQV±FRQWLQXHG
6SHFL¿FDWLRQV
Type Art Cool Mirror (Gen 2) Wall-Mounted – S8 Chassis
ARNU183S8R2 ARNU243S8R2
Cooling Mode Performance
Capacity (Btu/h) 19,100 24,200
Power Input1(W) 35 35
Heating Mode Performance
Capacity (Btu/h) 21,500 27,300
Power Input1(W) 35 35
Entering MixedAir
Cooling Max (°F WB) 76 76
Heating Min (°F DB) 59 59
Unit Data
Refrigerant Type2R410A R410A
Refrigerant Control EEV EEV
Sound Pressure3dB(A) (H/M/L) 37 / 34 / 31 43 / 37 / 32
Net Unit Weight (lbs.) 34 34
Shipping Weight (lbs.) 38 38
Communication Cable4(No. xAWG) 2 x 18 2 x 18
Fan
Type Cross Flow Cross Flow
Quantity 11
Motor/Drive Brushless Digitally Controlled / Direct
Airflow Rate H/M/L (CFM) 508 / 459 / 388 632 / 508 / 424
Piping
Liquid Line (in., O.D.) 1/4 Flare 3/8 Flare
Vapor Line (in., O.D.) 1/2 Flare 5/8 Flare
Condensate Line (in., I.D.) 5/8 5/8
EEV: Electronic Expansion Valve
Power wiring is field supplied and must comply with the applicable local and national
codes.
This unit comes with a dry nitrogen charge.
This data is rated 0 ft above sea level, with 25 ft of refrigerant line per indoor unit and a 0 ft
level difference between outdoor and indoor units. All capacities are net with a combina-
tion ratio between 95-105%.
Cooling capacity rating obtained with air entering the indoor coil at 80ºF dry bulb (DB) and
67ºF wet bulb (WB) and outdoor ambient conditions of 95ºF dry bulb (DB).
Heating capacity rating obtained with air entering the indoor unit at 70ºF dry bulb (DB) and
outdoor ambient conditions of 47ºF dry bulb (DB) and 43ºF wet bulb (WB).
1Power Input is rated at high speed.
2Take appropriate actions at the end of HVAC equipment life to recover, recycle, reclaim or
destroy R410Arefrigerant according to applicable regulations (40 CFR Part 82, Subpart F)
under section 608 of CAA.
3Sound Pressure levels are tested in an anechoic chamber under ISO Standard 3745.
4All communication cable to be minimum 18AWG, 2-conductor, stranded, shielded and
must comply with applicable and national code. Ensure the communications cable is prop-
erly grounded at the master outdoor unit only. Do not ground the ODU-IDU communica-
tions cable at any other point.

20
Multi V Wall-Mounted Indoor Unit
Due to our policy of continuous product innovation, some specifications may change without notification.
©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
GENERAL DATA
Electrical Data
• MCA= Minimum circuit ampacity; MOP = Maximum overcurrent protection
• Units must be connected to an electrical power system that supplies voltage within the listed range limits
• Select wire size based on the larger MCAvalue
• Use circuit breakers instead of fuses
Table 9: Wall-Mounted Indoor Units Electrical Data
(OHFWULFDO'DWD
Model Voltage
Range MCA (A) MOP (A) Rated Amps (A) Power Supply Power Input (W)
Hz Volts Phase Cooling Heating
Art Cool Gallery (Gen 4), SF Chassis
ARNU093SFA4 187-253 0.4 15 0.3 60 208-230 1 35 35
ARNU123SFA4 0.3 35 35
Standard (Gen 4), SB Chassis
ARNU053SBL4
187-253
0.2
15
0.16
60 208-230 1
21.0 21.0
ARNU073SBL4 0.2 0.16 21.0 21.0
ARNU093SBL4 0.2 0.16 21.0 21.0
ARNU123SBL4 0.2 0.16 21.0 21.0
ARNU153SBL4 0.2 0.16 21.0 21.0
Standard (Gen 4), SC Chassis
ARNU183SCL4 187-253 0.36 15 0.29 60 208-230 1 39.5 39.5
ARNU243SCL4 0.36 0.29 39.5 39.5
Standard (Gen 4), SV Chassis
ARNU303SVA4 187-253 0.64 15 0.51 60 208-230V 1 67.0 67.0
ARNU363SVA4 1.02 0.81 104.0 104.0
Art Cool Mirror (Gen 4), SB Chassis
ARNU053SBR4
187-253
0.2
15
0.16
60 208-230V 1
21 21
ARNU073SBR4 0.2 0.16 21 21
ARNU093SBR4 0.2 0.16 21 21
ARNU123SBR4 0.2 0.16 21 21
ARNU153SBR4 0.2 0.16 21 21
Art Cool Mirror (Gen 4), SC Chassis
ARNU183SCR4 187-253 0.36 15 0.29 60 208-230V 1 39.5 39.5
ARNU243SCR4 0.36 0.29 39.5 39.5
Art Cool Mirror (Gen 2), SE Chassis
ARNU073SER2
187-253
0.29
15
0.3
60 208-230V 1
40 40
ARNU093SER2 0.29 0.3 40 40
ARNU123SER2 0.29 0.3 40 40
ARNU153SER2 0.29 0.3 40 40
Art Cool Mirror (Gen 2), S8 Chassis
ARNU183S8R2 187-253 0.29 15 0.3 60 208-230V 1 35 35
ARNU243S8R2 0.29 0.3 35 35
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