LG ARNU093SFA4, ARNU073SJR4, ARNU123SJR4, ARNU123SFA4, ARNU053SJR4 Engineering Manual

WALL-MOUNTED INDOOR UNIT

ENGINEERING MANUAL

Art Cool™ Mirror Wall-Mounted

5,500 to 24,200 Btu/h

Art Cool™ Gallery

9,600 and 12,300 Btu/h

Standard Wall-Mounted

5,500 to 35,500 Btu/h

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.

This document is for design purposes only.

A summary list of safety precautions is on page 3.

To access additional technical documentation such as submittals, outdoor

unit engineering manuals, installation, service, product data performance,

general best practice, and building ventilation manuals, as well as white

papers, catalogs, LATS software programs, and more, log in to

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.

TABLE OF CONTENTS

DANGER

CAUTION

Unit Nomenclature ................................................................................. 4

LATS Overview ...................................................................................5-6

Refrigerant Charge Worksheet .......................................................... 7-9

Art Cool™ Gallery Indoor Units .................................................... 10-23

Mechanical Specications ..................................................................11

General Data ..................................................................................... 12

Electrical Data ................................................................................... 13

External Dimensions .......................................................................... 14

Electrical Wiring Diagram .................................................................. 15

Refrigerant Flow Diagram .................................................................. 16

Acoustic Data ............................................................................... 17-18

Air Velocity / Temperature Distribution ............................................... 19

Capacity Tables ............................................................................20-23

Art Cool™ Mirror Wall-Mounted Indoor Units .............................. 24-64

Mechanical Specications ............................................................ 25-26

General Data ..................................................................................... 27

Electrical Data ................................................................................... 28

External Dimensions ..................................................................... 29-30

Electrical Wiring Diagram .................................................................. 31

Refrigerant Flow Diagram .................................................................. 32

Acoustic Data ............................................................................... 33-36

Air Velocity / Temperature Distribution .......................................... 37-50

Capacity Tables ............................................................................51-64

Standard Wall-Mounted Indoor Units ......................................... 65-113

Mechanical Specications ............................................................ 66-67

General Data ................................................................................ 68-69

Electrical Data ................................................................................... 70

External Dimensions ..................................................................... 71-73

Electrical Wiring Diagram ............................................................. 74-75

Refrigerant Flow Diagram .................................................................. 76

Acoustic Data ............................................................................... 77-80

Air Velocity / Temperature Distribution .......................................... 81-95

Capacity Tables .......................................................................... 96-113

Application Guidelines ............................................................... 114-122

Selecting the Best Location ..............................................................115

General Mounting ......................................................................116-117

General Drain Piping Information ..............................................118-119

Wiring Guidelines ..................................................................... 120-122

Wired Controller Placement ............................................................. 122

Acronyms ........................................................................................... 123

Introduction

TABLE OF SYMBOLS

This symbol indicates an imminently hazardous situation which, if not avoided, will result in death or serious injury.

This symbol indicates a potentially hazardous situation which, if not avoided, could result in death or serious injury.

This symbol indicates a potentially hazardous situation which, if not avoided, may result in minor or moderate injury.

This symbol indicates situations that may result in equipment or property damage accidents only.

This symbol indicates an action must not be completed.

Due to our policy of continuous product innovation, some specications may change without notication.

© LG Electr onics U.S.A., Inc., Englewood Cl iffs, NJ. All r ights reserved. “LG” is a registered tra demark of LG Corp.

INTRODUCTION | 3

UNIT NOMENCLATURE

ARN U 07 3 TN C

Family
ARN = Multi V Indoor Unit
(Refrigerant R410A)

Type
U = DC Inverter Heat Pump

Indoor Unit Capacity (Mbh)
05 = 5
07 = 7
09 = 9
12 = 12
15 = 15

Electrical Ratings
3 = 208–230V/60Hz/1Ph

Model
B8 = Ducted (high static)
BH = Ducted (high static)

CE = Floor Standing (small frame)
CF = Floor Standing (large frame)
L1 = Ducted (low static)
L2 = Ducted (low static)
L3 = Ducted (low static)

M2 = Ducted (high static)
M3 = Ducted (high static)

18 = 18
24 = 24
28 = 28
30 = 30
36 = 36

42 = 42
48 = 48
54 = 54
76 = 76
96 = 96

NJ = Vertical/Horizontal Air Handling
Unit
NK = Vertical/Horizontal Air Handling
Unit

SF = Wall Mounted / Art Cool™ Gallery
SJ = Wall Mounted / Art Cool Mirror
SK = Wall Mounted / Art Cool Mirror

SV = Wall Mounted / Standard
TT = 1-Way Ceiling Cassette

4

TU = 1-Way Ceiling Cassette
TS = 2-Way Ceiling Cassette
TM = 4-Way Ceiling Cassette
TN = 4-Way Ceiling Cassette
TQ = 4-Way Ceiling Cassette
TR = 4-Way Ceiling Cassette

Feature
A, C, D, L, R = Standard*

G = Low Static

MULTI V Wall-Mounted Indoor Unit Engineering Manual

*Filter accessories are available separately. Always follow all local, state, and national building codes with the use of this or any
product.

Generation
2 = Second
4 = Fourth
A = Second, Revision A

4 | INTRODUCTION

U = Uncased

Due to our policy of continuous product innovation, some specications may change without notication.

© LG Electr onics U.S.A., Inc., Englewood Cl iffs, NJ. All r ights reserved. “LG” is a registered tra demark of LG Corp.

LG AIR CONDITIONER

TECHNICAL SOLUTION (LATS)

LG Air Conditioner Technical Solution (LATS) Software

A properly designed and installed refrigerant piping system is critical to the optimal performance of LG air-conditioning systems. To assist
engineers, LG offers, free of charge, LG Air Conditioner Technical Solution (LATS) software—a total design solution for LG air conditioning
systems.

To reduce the risk of designing an improper applied system or one that will not operate correctly, LG requires that LATS software be used on all
projects.

Formats

LATS is available to LG customers in three user interfaces: LATS HVAC, LATS CAD2, and LATS REVIT. All three LATS formats are available
through www.myLGHVAC.com, or contact an LG Sales Representative.

LATS HVAC is a Windows®-based application that aids engineers in designing LG Variable Refrigerant Flow (VRF), Multi F / Multi F MAX,
Single-Zone, and Energy Recovery Ventilator (ERV) systems.

*Windows® is a registered mark of Microsoft® Corporation.

LATS CAD2 combines the LG LATS program with AutoCAD®
software**. It permits engineers to layout and validate LG Multi V
Variable Refrigerant Flow (VRF), Multi F / Multi F MAX, Single-Zone,
and Energy Recovery Ventilator (ERV) systems directly into CAD
drawings.

LATS Revit integrates the LG LATS program with Revit® software**.
It permits engineers to layout and validate Multi V VRF systems
directly into Revit drawings.

**AutoCAD® and Revit® are both registered marks of Autodesk, Inc.

Figure 1: Example of LATS CAD2.

Features

All LG product design criteria have been loaded into the program,
making LATS simple to use: double click or drag and drop the
component choices. Build systems in Tree Mode where the
refrigerant system can be viewed. Switch to a Schematic diagram to see the electrical and communications wiring.

LATS software permits the user to input region data, indoor and outdoor design temperatures, modify humidity default values, zoning, specify
type and size of outdoor units and indoor units, and input air flow and external static pressure (ESP) for ducted indoor units.

The program can also:

• Import building loads from a separate Excel file.

• Present options for outdoor unit auto selection.

• Automatically calculate component capacity based on design
conditions for the chosen region.

• Verify if the height differences between the various system
components are within system limits.

• Provide the correct size of each refrigerant piping segment and LG
Y-Branches and Headers.

• Adjust overall piping system length when elbows are added.

• Check for component piping limitations and flag if any parameters
are broken.

• Factor operation and capacity for defrost operation.

• Calculate refrigerant charge, noting any additional trim charge.

• Suggest accessories for indoor units and outdoor units.

• Run system simulation.

Introduction

Features depend on which LATS program is being used, and the type of system being designed.

Due to our policy of continuous product innovation, some specications may change without notication.

© LG Electr onics U.S.A., Inc., Englewood Cl iffs, NJ. All r ights reserved. “LG” is a registered tra demark of LG Corp.

INTRODUCTION | 5

LG AIR CONDITIONER
TECHNICAL SOLUTION (LATS)

LATS Generates a Complete Project Report

LATS software also generates a report containing project design parameters, cooling and heating design data, system component perfor­mance, and capacity data. The report includes system combination ratio and refrigerant charge calculations; and provides detailed bill of
material, including outdoor units, indoor units, control devices, accessories, refrigerant pipe sizes segregated by building, by system, by pipe
size, and by pipe segments. LATS can generate an Excel GERP report that can imported into the LG SOPS pricing and ordering system.

Proper Design to Install Procedure

LG encourages a two report design-to-install-procedure. After the
design engineer determines building / zone loads and other details,
the engineer opens the LATS program and inputs the project’s infor­mation. When the design is complete, the “Auto Piping” and “System
Check” functions must be used to verify piping sizes, limitations, and
if any design errors are present. If errors are found, engineers must
adjust the design, and run Auto Piping and System Check again.
When the design passes the checks, then the engineer prints out
a project “Shop Drawing” (LATS Tree Diagram) and provides it to
the installing contractor. The contractor must follow the LATS Tree
Diagram when building the piping system, but oftentimes the design
changes on the building site:

Figure 2: Example of a LATS Tree Diagram.

• Architect has changed location and/or purpose of room(s).

• Outdoor unit cannot be placed where originally intended.

• Structural elements prevent routing the piping as planned.

• Air conditioning system conflicts with other building systems
(plumbing, gas lines, etc.).

The contractor must mark any deviation from the design on the Shop Drawing, including as-built straight lines and elbows. This “Mark Up”
drawing must be returned to the design engineer or Rep, who must input contractor changes into the LATS file. (Copy the original LATS soft­ware file, save and rename as a separate file, and modify all piping lengths by double-clicking on each length and editing information.) Like
the shop drawing, the Auto Piping and System Check must also be run on this new “As Built” drawing. The design engineer or Rep must then
provide the final As Built file to the contractor. The Mark Up version must be compared to the As Built version for:

• Differences in pipe diameter(s). If incorrect diameters have been installed, the piping must be changed out. If pipe diameters have changed,
check to see if Y-Branches will also need to be changed.

• Changes to outdoor unit and indoor unit capacities. Capacities changes may impact line length changes.

• Additional refrigerant charge quantity (“Trim Charge”). Trim charge will change if piping lengths and diameters change. The As Built version
must reflect installed piping lengths to ensure correct trim charge.

MULTI V Wall-Mounted Indoor Unit Engineering Manual

All documents submitted by the contractor, as well as the Shop Drawing and the As Built Drawing files must be provided for commissioning
purposes. Model and serial numbers for all system components must also be submitted. If the steps previously detailed are not followed,
and all documents are not provided to the commissioning agent, the project runs the risk of not being commissioned and voiding any limited
warranty LG offers on the equipment.

6 | INTRODUCTION

Due to our policy of continuous product innovation, some specications may change without notication.

© LG Electr onics U.S.A., Inc., Englewood Cl iffs, NJ. All r ights reserved. “LG” is a registered tra demark of LG Corp.

REFRIGERANT CHARGE WORKSHEET

Multi V 5 System R410A Refrigerant Charge Calculator (lbs.)

Job Name: __________________________________________

System Tag or ID:

Project Manager: ____________________________________ Date: ______________

Line # Description Chassis I.D. Size Quantity CF (Ref.)

1 Linear feet of 1/4" liquid line tubing
2 Linear feet of 3/8" liquid line tubing
3 Linear feet of 1/2" liquid line tubing
4 Linear feet of 5/8" liquid line tubing
5 Linear feet of 3/4" liquid line tubing
6 Linear feet of 7/8" liquid line tubing
7 Linear feet of 1" liquid line tubing
8 Standard + Art Cool Mirror SJ, SK 5k to 15k 0.53

9 Standard + Art Cool Mirror SJ, SK 18k to 24k 0.62
10 Standard SV 30k to 36k 1.01
11 Art Cool Gallery SF 9k to 12k 0.22
12 1-Way Cassette TU 7k to 12k 0.44
13 1-Way Cassette TT 18k to 24k 0.64
14 2-Way Cassette TS 18k to 24k 0.75
15 4-Way 2' x 2' Cassette TR 5k to 7k 0.40
16 4-Way 2' x 2' Cassette TR 9k to 12k 0.55
17 4-Way 2' x 2' Cassette TQ 15k to 18k 0.71
18 4-Way 3' x 3' Cassette TN 7k to 24k 0.88
19 4-Way 3' x 3' Cassette TM 28k to 36k 1.08
20 4-Way 3’ x 3’ Cassette TM 42k to 48k 1.41
21 High Static Ducted BH 7k to 24k 0.57
22 High Static Ducted M2 7k to 24k 0.77
23 High Static Ducted M2 28k to 42k 1.15
24 High Static Ducted M3 28k to 54k 1.35
25 High Static Ducted B8 36k to 96k 2.20
26 Low Static Ducted, Low Static Ducted Bottom Return L1 5k to 9k 0.31
27 Low Static Ducted, Low Static Ducted Bottom Return L2 12k to 18k 0.42
28 Low Static Ducted, Low Static Ducted Bottom Return L3 21k to 24k 0.55
29 Vertical / Horizontal Air Handling Unit NJ 12k to 30k 1.04
30 Vertical / Horizontal Air Handling Unit NJ 36k 1.57
31 Vertical / Horizontal Air Handling Unit NK 42k to 54k 2.00
32 Floor Standing CE (U) 7k to 15k 0.37

33 Floor Standing CF (U) 18k to 24k 0.82
34 HRU: PRHR022A/023A, 032A/033A, 042A/043A, 063A, 083A — — 1.1

35 ADDITIONAL Refrigerant Charge Required (Sum of lines 1 – 34)

36 Outdoor Unit Factory Refrigerant Charge

37

38

1

CF (Ref.) = Correction Factor for Refrigerant Charge. 2For refrigerant charge purposes, consider only the liquid line; ignore the vapor line(s).

Total ODU FACTORY Refrigerant Charge (Sum of factory refrigerant charges for all ODUs in the system, lines 36A -36H)

Sum of Additional Refrigerant Charge Required (line 35) and Total ODU Factory Refrigerant Charge (line 37)

2

2

2

2

2

2

2

— — 0.015
— — 0.041
— — 0.079
— — 0.116
— — 0.179
— — 0.238
— — 0.323

36A ARUM072*TE5 72k 14.3
36B ARUM096*TE5 96k 23.2
36C ARUM121*TE5 121k 23.2
36D ARUM144*TE5 144k 26.5
36E ARUM168*TE5 168k 26.5
36F ARUM192*TE5 192k 30.9
36G ARUM216*TE5 216k 37.5
36H ARUM241*TE5 241k 37.5

TOTAL SYSTEM CHARGE

1

Total (lbs.)

Introduction

Due to our policy of continuous product innovation, some specications may change without notication.

© LG Electr onics U.S.A., Inc., Englewood Cl iffs, NJ. All r ights reserved. “LG” is a registered tra demark of LG Corp.

INTRODUCTION | 7

REFRIGERANT CHARGE WORKSHEET

Water IV System R410A Refrigerant Charge Calculator (lbs.)

Job Name: __________________________________________

System Tag or ID:

Project Manager: ____________________________________ Date: ______________

Line # Description Chassis I.D. Size Quantity CF (Ref.)

1 Linear feet of 1/4" liquid line tubing
2 Linear feet of 3/8" liquid line tubing
3 Linear feet of 1/2" liquid line tubing
4 Linear feet of 5/8" liquid line tubing
5 Linear feet of 3/4" liquid line tubing
6 Linear feet of 7/8" liquid line tubing
7 Linear feet of 1" liquid line tubing
8 Standard + Art Cool Mirror SJ, SK 5k to 15k 0.53

9 Standard + Art Cool Mirror SJ, SK 18k to 24k 0.62
10 Standard SV 30k to 36k 1.01
11 Art Cool Gallery SF 9k to 12k 0.22
12 1-Way Cassette TU 7k to 12k 0.44
13 1-Way Cassette TT 18k to 24k 0.64
14 2-Way Cassette TS 18k to 24k 0.75
15 4-Way 2' x 2' Cassette TR 5k to 7k 0.40
16 4-Way 2' x 2' Cassette TR 9k to 12k 0.55
17 4-Way 2' x 2' Cassette TQ 15k to 18k 0.71
18 4-Way 3' x 3' Cassette TN 7k to 24k 0.88
19 4-Way 3' x 3' Cassette TM 28k to 36k 1.08
20 4-Way 3’ x 3’ Cassette TM 42k to 48k 1.41
21 High Static Ducted BH 7k to 24k 0.57
22 High Static Ducted M2 7k to 24k 0.77
23 High Static Ducted M2 28k to 42k 1.15
24 High Static Ducted M3 28k to 54k 1.35
25 High Static Ducted B8 36k to 96k 2.20
26 Low Static Ducted, Low Static Ducted Bottom Return L1 5k to 9k 0.31
27 Low Static Ducted, Low Static Ducted Bottom Return L2 12k to 18k 0.42
28 Low Static Ducted, Low Static Ducted Bottom Return L3 21k to 24k 0.55
29 Vertical / Horizontal Air Handling Unit NJ 12k to 30k 1.04
30 Vertical / Horizontal Air Handling Unit NJ 36k 1.57
31 Vertical / Horizontal Air Handling Unit NK 42k to 54k 2.00
32 Floor Standing CE (U) 7k to 15k 0.37
33 Floor Standing CF (U) 18k to 24k 0.82
34 HRU: PRHR022A/023A, 032A/033A, 042A/043A, 063A, 083A — — 1.1
35 ADDITIONAL Refrigerant Charge Required (Sum of lines 1 – 34)

36

MULTI V Wall-Mounted Indoor Unit Engineering Manual

37

38

1

CF (Ref.) = Correction Factor for Refrigerant Charge. 2For refrigerant charge purposes, consider only the liquid line; ignore the vapor line(s).

Water-Source Unit Factory

Refrigerant Charge

Total WSU FACTORY Refrigerant Charge (Sum of factory refrigerant charges for all WSUs in the system)

Sum of Additional Refrigerant Charge Required (line 35) and Total WSU Factory Refrigerant Charge (line 37)

2

2

2

2

2

2

2

— — 0.015
— — 0.041
— — 0.079
— — 0.116
— — 0.179
— — 0.238
— — 0.323

ARW*072BAS4, ARW*096BAS4, ARW*121BAS4, ARW*144BAS4 10.42
ARW*072DAS4, ARW*096DAS4, ARW*121DAS4 10.42
ARW*144DAS4, ARW*192DAS4 11.66

TOTAL SYSTEM CHARGE

1

Total (lbs.)

8 | INTRODUCTION

Due to our policy of continuous product innovation, some specications may change without notication.

© LG Electr onics U.S.A., Inc., Englewood Cl iffs, NJ. All r ights reserved. “LG” is a registered tra demark of LG Corp.

REFRIGERANT CHARGE WORKSHEET

Multi V S System R410A Refrigerant Charge Calculator (lbs.)

Job Name: __________________________________________

System Tag or ID:

Project Manager: ____________________________________ Date: ______________

Line # Description Chassis I.D. Size Quantity CF (Ref.)

1 Linear feet of 1/4" liquid line tubing

2 Linear feet of 3/8" liquid line tubing

3 Linear feet of 1/2" liquid line tubing

4 Linear feet of 5/8" liquid line tubing

5 Linear feet of 3/4" liquid line tubing

6 Linear feet of 7/8" liquid line tubing

7 Linear feet of 1" liquid line tubing

8 Standard + Art Cool Mirror SJ, SK 5k to 15k 0.53

9 Standard + Art Cool Mirror SJ, SK 18k to 24k 0.62
10 Standard SV 30k to 36k 1.01
11 Art Cool Gallery SF 9k to 12k 0.22
12 1-Way Cassette TU 7k to 12k 0.44
13 1-Way Cassette TT 18k to 24k 0.64
14 2-Way Cassette TS 18k to 24k 0.75
15 4-Way 2' x 2' Cassette TR 5k to 7k 0.40
16 4-Way 2' x 2' Cassette TR 9k to 12k 0.55
17 4-Way 2' x 2' Cassette TQ 15k to 18k 0.71
18 4-Way 3' x 3' Cassette TN 7k to 24k 0.88
19 4-Way 3' x 3' Cassette TM 28k to 36k 1.08
20 4-Way 3’ x 3’ Cassette TM 42k to 48k 1.41
21 High Static Ducted BH 7k to 24k 0.57
22 High Static Ducted M2 7k to 24k 0.77
23 High Static Ducted M2 28k to 42k 1.15
24 High Static Ducted M3 28k to 54k 1.35
25 High Static Ducted B8 36k to 96k 2.20
26 Low Static Ducted, Low Static Ducted Bottom Return L1 5k to 9k 0.31
27 Low Static Ducted, Low Static Ducted Bottom Return L2 12k to 18k 0.42
28 Low Static Ducted, Low Static Ducted Bottom Return L3 21k to 24k 0.55
29 Vertical / Horizontal Air Handling Unit NJ 12k to 30k 1.04
30 Vertical / Horizontal Air Handling Unit NJ 36k 1.57
31 Vertical / Horizontal Air Handling Unit NK 42k to 54k 2.00
32 Floor Standing CE (U) 7k to 15k 0.37
33 Floor Standing CF (U) 18k to 24k 0.82
34 HRU: PRHR022A/023A, 032A/ 033A, 042A/ 043A, 063A, 083A — — 1.1
35 ADDITIONAL Refrigerant Charge Required (Sum of lines 1 – 34)

36

37

1

CF (Ref.) = Correction Factor for Refrigerant Charge. 2For refrigerant charge purposes, consider only the liquid line; ignore the vapor line(s).

Total ODU FACTORY Refrigerant Charge

(Choose One)

Sum of Additional Refrigerant Charge Required (line 35) and Total ODU Factory Refrigerant Charge (from lines 36A through 36G)

2

2

2

2

2

2

2

— — 0.015
— — 0.041
— — 0.079
— — 0.116
— — 0.179
— — 0.238
— — 0.323

36A ARUN024GSS4 0
36B ARUN038GSS4 0
36C ARUN048GSS4 0
36D ARUN053GSS4 0
36F ARUN060GSS4 0
36G ARUB060GSS4 0

TOTAL SYSTEM CHARGE

1

Total (lbs.)

Introduction

Due to our policy of continuous product innovation, some specications may change without notication.

© LG Electr onics U.S.A., Inc., Englewood Cl iffs, NJ. All r ights reserved. “LG” is a registered tra demark of LG Corp.

INTRODUCTION | 9

TM

ART COOL

Mechanical Specifications on page 11

General Data on page 12

Electrical Data on page 13

External Dimensions on page 14

Electrical Wiring Diagram on page 15

Refrigerant Flow Diagrams on page 16

Acoustic Data on page 17

Air Velocity / Temperature Distribution on page 19

Capacity Tables on page 20

GALLERY

ART COOLTM GALLERY

Mechanical Specications

Casing

Units are designed to mount on a vertical surface and come com­plete with an installation mounting guide and a separate hanging
bracket. The unit case is manufactured with coated metal. Cold
surfaces are covered with a coated polystyrene insulating material.

Finish

The unit case has a light gray / silver matte finish. The front surface
of the unit has a flat glass panel and frame that can accommodate a

20″ x 20″ photograph, picture or artwork.

Fan Assembly and Control

The indoor unit has a single, direct-drive, turbo fan. The fan wheel

is made of high strength ABS HT-700 polymeric resin. The fan motor
is a Brushless Digitally Controlled (BLDC) design with permanently

lubricated and sealed ball bearings. The fan motor includes thermal,

overcurrent and low RPM protection. The fan/motor assembly is
mounted on vibration attenuating rubber grommets. The fan impeller
is statically and dynamically balanced. The fan speed is controlled

using a microprocessor-based, direct digital control algorithm that

provides a high fan speed in cooling thermal ON and low fan speed

in cooling thermal OFF, high fan speed in heating thermal ON and

fan off in heating thermal OFF. The fan speeds can be field adjusted

between low, medium, and high speeds. The fan speed algorithm
provides a field selectable, fixed-speed or auto-speed setting that

adjusts the fan speed to simulate natural airflow.

Air Filter

Return air is filtered with a removable, washable filter with anti-fun­gal treatment. Filter access is from the front of the unit without the
use of tools.

Airflow Guide Vanes

The indoor unit is provided with motorized sweeping guide vanes
that automatically change the direction of airflow from side-to-side

and up-and-down.

Microprocessor Control

The unit is provided with an integrated microprocessor controller ca­pable of performing functions necessary to operate the system with­out the use of a wall-mounted controller. A temperature thermistor is
factory mounted in the return air stream. All unit operation param-

eters, excluding the operating schedule, are stored in non-volatile

memory resident on the unit microprocessor. Operating schedules

are stored in select models of the optional, wall-mounted, local or

central controllers. The field-supplied communication cable between

the indoor unit(s) and outdoor unit is to be a minimum of 18 AWG,
2 conductor, stranded, and shielded cable (RS-485), terminated via

screw terminals on the control boards. The microprocessor control

provides the following functions: auto addressing, self-diagnostics,
auto restart following power restoration, test run, and will operate the

indoor unit using one of five operation modes:

1. Auto Changeover (Heat Recovery only)

2. Heating

3. Cooling

4. Dry

5. Fan Only

For Heat Recovery systems the Auto Changeover setting automati­cally switches control of the indoor unit between Cooling and Heating
modes based on space temperature conditions. For Heat Pump

Due to our policy of continuous product innovation, some specications may change without notication.

© LG Electr onics U.S.A., Inc., Englewood Cl iffs, NJ. All r ights reserved. “LG” is a registered tra demark of LG Corp.

systems, heated or cooled air delivery

is dependent upon outdoor unit
operating mode.

In Heating mode, the microprocessor

control will activate indoor unit opera­tion when the indoor room temperature
falls below set-point temperature.

At which point, a signal is sent to

the outdoor unit to begin the heating
cycle. The indoor unit fan operation
is delayed until coil pipe temperature
reaches 76°F. Significant airflow is
generated when pipe temperature
reaches 80°F. A field-selectable option maintains fan operation for
30 minutes following cooling cycle operations. The unit is equipped
with an infrared receiver designed to communicate with an LG
wireless remote controller. In lieu of wireless remote or factory return

air thermistor, screw terminals on the microprocessor circuit board

accommodate various models of wall-mounted local controllers.
The unit microprocessor is capable of accepting space temperature

readings concurrently or individually from either:

1. Wall-mounted wired controller(s)

2. Factory-mounted return air thermistor

A single indoor unit has the capability of being controlled by up to
two local wired controllers. The microprocessor controls space tem­perature using the value provided by the temperature sensor sensing
a space temperature that is farthest away from the temperature
set-point. The microprocessor control provides a cooling or heating
mode test cycle that operates the unit for eighteen (18) minutes
without regard to the space temperature. If the system is provided

with an optional wall-mounted local or central controller, displayed di­agnostic codes are specific, alpha-numeric, and provide the service

technician with a reason for the code displayed.

Handling Condensate

The unit is designed for gravity draining of condensate. LG provides

a factory insulated flexible drain hose. If condensate lift/pumps are
needed for the application, they are to be field provided.

Condensate Drain Pan

The condensate drain pan is constructed of expandable polystyrene

resin (EPS).

Coil

The indoor unit coil is constructed with grooved design copper tubes

with slit coil fins, two (2) rows, eighteen (18) fins per inch.

Controls Features

• Auto changeover (Heat
Recovery only)

• Auto operation

• Auto clean (coil dry; requires
wireless controller)

• External on/off control

• Dual thermistor control

• Dual setpoint control*

• Filter life and power consump­tion display*

• Group control

• Forced operation

• Hot start

• Self diagnostics

• Timer (on/off)

• Weekly schedule

• Auto direction/swing (up/down)

• Fan speed control

• Jet cool (fast cooling)

*To enable Generation 4 features,
outdoor unit DIP Switch No. 3
must be set to ON. Please refer
to the Multi V 5, Multi V IV, Multi
V Water IV, Multi V S Engineering
Manual for additional information.

ART COOLTM | 11

Art Cool

TM

Gallery

ART COOL GALLERY

General Data

Table 1: Art Cool Gallery (SF Frames) Indoor Unit General Data.

Model No. ARNU093SFA4 ARNU123SFA4

Cooling Mode Performance

Capacity (Btu/h)

Power Input1 (W)

H/M/L Power Input at Factory Default (W)

Heating Mode Performance

Capacity (Btu/h)

Power Input1 (W)

H/M/L Power Input at Factory Default (W)

Entering Mixed Air

Cooling Max (°F WB)

Heating Min (°F DB)

2

2

Unit Data

Refrigerant Type3

Refrigerant Control

Sound Pressure4 dB(A) (H/M/L)

Net Unit Weight (lbs.)

Shipping Weight (lbs.)

Communication Cable5 (No. x AWG)

Fan

Type

Quantity

Motor/Drive

Airflow Rate H/M/L (CFM)

Piping

Liquid Line (in., O.D.)

Vapor Line (in., O.D.)

Condensate Line (in., I.D.)

MULTI V Wall-Mounted Indoor Unit Engineering Manual

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.

All capacities are net with a combination ratio between 95-105%.

Rated capacity is certified under AHRI Standard 1230. Ratings are subject to change
without notice. Current certified ratings are available at www.ahridirectory.org.

1

Max. power input is rated at maximum setting value.

2

Low ambient performance with LGRED° heat technology is included in Multi V 5 Air

9,600 12,300

35 35

28 /16 / 10 32 / 20 /12

10,900 13,600

35 35

28 /16 / 10 32 / 20 /12

76 76

59 59

R410A R410A

EEV EEV

38 / 32 / 27 44 / 38 / 32

33.1 33.1

38.1 38.1

2 x 18 2 x 18

Turbo Fan Turbo Fan

1 1

Brushless Digitally Controlled / Direct

286 / 222 / 148 328 / 272 / 212

1/4 Flare 1/4 Flare

1/2 Flare 1/2 Flare

5/8 5/8

Source Units produced after February 2019.

3

Take appropriate actions at the end of HVAC equipment life to recover, recycle, reclaim or

destroy R410A refrigerant according to applicable regulations (40 CFR Part 82, Subpart F)

under section 608 of CAA.

4

Sound Pressure levels are tested in an anechoic chamber under ISO Standard 3745.

5

All communication cable to be minimum 18 AWG, 2-conductor, twisted, stranded, shielded

and must comply with applicable local and national codes. Ensure the communication
cable is properly grounded at the master outdoor unit only. Do not ground the ODU-IDU
communication cable at any other point.

12 | ART COOL

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© LG Electr onics U.S.A., Inc., Englewood Cl iffs, NJ. All r ights reserved. “LG” is a registered tra demark of LG Corp.

ART COOL GALLERY

Electrical Data

Table 2: Art Cool Gallery Wall-Mounted Indoor Unit Electrical Data.

Power Supply Power Input (W)

Hz Volts Phase

60 208-230 1

Max.

Cooling

35 35 28 /16 / 10

Max.

Heating

H / M/ L at

Factory Default

Model Number

Voltage

Range

MCA MOP

Rated

Amps (A)

SF Frames

ARNU093SFA4

ARNU123SFA4 0.4 15 0.3 35 35 32 / 20 /12

MCA : Minimum Circuit Ampacity.

MOP : Maximum Overcurrent Protection.

Units are suitable for use on an electrical system where voltage supplied to unit terminals is within the listed range limits.
Select wire size based on the larger MCA value.

Instead of fuse, use the circuit breaker.

Max. power input is rated at maximum setting value.

187-253

0.4 15 0.3

Art Cool

TM

Gallery

Due to our policy of continuous product innovation, some specications may change without notication.

© LG Electr onics U.S.A., Inc., Englewood Cl iffs, NJ. All r ights reserved. “LG” is a registered tra demark of LG Corp.

ART COOLTM | 13

ART COOL GALLERY

Piping Access Hole

Attachment Hole

Attachment Hole

23-5/8

5-3/4

19-11/16

20-11/16

Air Outlet Grille

Air Outlet Grille

Air Outlet Grille

Air Inlet Grille

23-5/8

Unit: inches

Note: All measurements
have a tolerance of 1/4 in.

External Dimensions

SF Frame

Figure 3: ARNU093SFA4 and ARNU123SFA4 Dimensions.

MULTI V Wall-Mounted Indoor Unit Engineering Manual

14 | ART CO OL

TM

Due to our policy of continuous product innovation, some specications may change without notication.

© LG Electr onics U.S.A., Inc., Englewood Cl iffs, NJ. All r ights reserved. “LG” is a registered tra demark of LG Corp.

Figure 4: ARNU093SFA4 and ARNU123SFA4 Wiring Diagram.

ART COOL GALLERY

Electrical Wiring Diagram

SF Frame

Art Cool

Table 3: SF Frame Wiring Diagram Legend.

PCB Connection Purpose Function

CN-TH3 Pipe out thermistor Pipe out thermistor connection
CN-TH2 Pipe in thermistor Pipe in thermistor connection
CN-TH1 Return air thermistor Return air thermistor connection

CN-UD Step motor Step motor output
CN-LR1 Step motor Step motor output
CN-LR2 Step motor Step motor output

CN-REMO Wired remote controller Wired remote controller connection

CN-EEV EEV output EEV control output

CN-EXT1 External on/off controller External on/off controller connection

CN-CC Dry contact Dry contact connection

CN-485 Communication Connection between indoor and outdoor units

*To enable Generation 4 features, outdoor unit DIP switch no. 3 must be set to ON. Please refer to the Multi V 5, Multi V IV, Multi V Water IV, Multi V
S
Engineering Manual for additional information.

TM

Gallery

Due to our policy of continuous product innovation, some specications may change without notication.

© LG Electr onics U.S.A., Inc., Englewood Cl iffs, NJ. All r ights reserved. “LG” is a registered tra demark of LG Corp.

ART COOLTM | 15

ART COOL GALLERY

Refrigerant Flow Diagram

SF Frame

Figure 5: SF Frame Piping Diagram.

Strainer

Strainer

Table 4: SF Frame Refrigerant Pipe Connection Port Diameters.

Model Liquid (inch) Vapor (inch)

SF Frames

ARNU093SFA4 1/4 Flare 1/2 Flare

ARNU123SFA4 1/4 Flare 1/2 Flare

Table 5: SF Frame Thermistors.

Thermistor Description

MULTI V Wall-Mounted Indoor Unit Engineering Manual

TH1 Return air thermistor

TH2 Pipe in thermistor

TH3 Pipe out thermistor

16 | ART CO OL

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ART COOL GALLERY

Acoustic Data

Sound Pressure Levels

Figure 6: Sound Pressure Measurement Location.

• Measurements are taken 3.3 ft away from the front of the unit.

• Sound pressure levels are measured in dB(A) with a tolerance of ±3.

• Sound pressure levels are tested in an anechoic chamber under ISO Standard 3745.
Operating Conditions:

• Power source: 220V/60 Hz

• Sound level will vary depending on a range of factors including the construction
(acoustic absorption coefficient) of a particular room in which the unit was installed.

3.3ft

2.6ft

Microphone

Table 6: Art Cool Gallery Indoor Unit Sound Pressure Levels.

Sound Pressure Levels dB(A)

Model High Fan Speed Medium Fan Speed Low Fan Speed

SF Frames

ARNU093SFA4 38.0 32.0 27.0

ARNU123SFA4 44.0 38.0 32.0

Art Cool

TM

Gallery

Figure 7: ARNU093SFA4 and ARNU123SFA4 Sound Pressure Level Diagrams.

ARNU093SFA4 ARNU123SFA4

Due to our policy of continuous product innovation, some specications may change without notication.

© LG Electr onics U.S.A., Inc., Englewood Cl iffs, NJ. All r ights reserved. “LG” is a registered tra demark of LG Corp.

ART COOLTM | 17

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Acoustic Data

Sound Power Levels

Table 7: Art Cool Gallery Indoor Unit Sound Power Levels.

Model

SF Frames

ARNU093SFA4 48.0
ARNU123SFA4 54.0

Figure 8: ARNU093SFA4 and ARNU123SFA4 Sound Power Level Diagrams.

Sound Power Levels dB(A)

High Fan Speed

• Data is valid under diffuse field conditions.

• Data is valid under nominal operating conditions.

• Sound power level is measured using rated conditions, and tested in a

reverberation room per ISO 3741 standards.

• Sound level will vary depending on a range of factors such as con­struction (acoustic absorption coefficient) of particular area in which
the equipment is installed.

• Reference acoustic intensity: 0dB = 10E-6μW/m

ARNU093SFA4 ARNU123SFA4

2

MULTI V Wall-Mounted Indoor Unit Engineering Manual

18 | ART CO OL

TM

Due to our policy of continuous product innovation, some specications may change without notication.

© LG Electr onics U.S.A., Inc., Englewood Cl iffs, NJ. All r ights reserved. “LG” is a registered tra demark of LG Corp.

Figure 9: ARNU093SFA4.

Cooling

Heating

Cooling

Discharge angle: 40°

ART COOL GALLERY

Air Velocity / Temperature Distribution

ARNU093SFA4, ARNU123SFA4

Heating

Discharge angle: 50°

Air velocity (m/s [ft./s])

1.0(3.3)

0.5(1.6)

5m (16.4 ft.) 4m (13.1 ft.) 3m (9.8 ft.) 2m (6.6 ft.) 1m (3.3 ft.)

Temperature (°C [°F])

15(59)

19(66.2)

5m (16.4 ft.) 4m (13.1 ft.) 3m (9.8 ft.) 2m (6.6 ft.) 1m (3.3 ft.)

17(62.6)

Figure 10: ARNU123SFA4.

Discharge angle: 40°

1.5(4.9)

2.0(6.6)

11(51.8)

13(55.4)

2.7m (8.9 ft.)

2m (6.6 ft.)

1m (3.3 ft.)

0m (0)

0m (0)

2.7m (8.9 ft.)

2m (6.6 ft.)

1m (3.3 ft.)

0m (0)

0m (0)

Air velocity (m/s [ft./s])

1.0(3.3)

0.5(1.6)

5m (16.4 ft.) 4m (13.1 ft.) 3m (9.8 ft.) 2m (6.6 ft.) 1m (3.3 ft.)

Temperature (°C [°F])

35(95)

37(98.6)

5m (16.4 ft.) 4m (13.1 ft.) 3m (9.8 ft.) 2m (6.6 ft.) 1m (3.3 ft.)

33(91.4)

Discharge angle: 50°

1.5(4.9)

41(105.8)

39(102.2)

2.0(6.6)

43(109.4)

2.7m (8.9 ft.)

2m (6.6 ft.)

1m (3.3 ft.)

0m (0)

0m (0)

2.7m (8.9 ft.)

2m (6.6 ft.)

1m (3.3 ft.)

0m (0)

0m (0)

Art Cool

TM

Gallery

Air velocity (m/s [ft./s])

1.5(4.9)

5m (16.4 ft.) 4m (13.1 ft.) 3m (9.8 ft.) 2m (6.6 ft.) 1m (3.3 ft.)

0.5(1.6)

Temperature (°C [°F])

19(66.2)

5m (16.4 ft.) 4m (13.1 ft.) 3m (9.8 ft.) 2m (6.6 ft.) 1m (3.3 ft.)

1.0(3.3)

15(59)

17(62.6)

Due to our policy of continuous product innovation, some specications may change without notication.

© LG Electr onics U.S.A., Inc., Englewood Cl iffs, NJ. All r ights reserved. “LG” is a registered tra demark of LG Corp.

2.0(6.6)

11(51.8)

13(55.4)

2.7m (8.9 ft.)

2m (6.6 ft.)

1m (3.3 ft.)

0m (0)

0m (0)

2.7m (8.9 ft.)

2m (6.6 ft.)

1m (3.3 ft.)

0m (0)

0m (0)

Air velocity (m/s [ft./s])

1.5(4.9)

35(95)

1.0(3.3)

37(98.6)

41(105.8)

39(102.2)

0.5(1.6)

5m (16.4 ft.) 4m (13.1 ft.) 3m (9.8 ft.) 2m (6.6 ft.) 1m (3.3 ft.)

Temperature (°C [°F])

33(91.4)

5m (16.4 ft.) 4m (13.1 ft.) 3m (9.8 ft.) 2m (6.6 ft.) 1m (3.3 ft.)

2.7m (8.9 ft.)

2m (6.6 ft.)

2.5(8.2)

2.0(6.6)

1m (3.3 ft.)

0m (0)

0m (0)

2.7m (8.9 ft.)

2m (6.6 ft.)

45(113)

43(109.4)

1m (3.3 ft.)

0m (0)

0m (0)

ART COOLTM | 19

ART COOL GALLERY

Cooling Capacity Tables

ARNU093SFA4

Table 8: ARNU093SFA4 Cooling Capacity Table.

Outdoor

Model No. /

Capacity Index

ARNU093SFA4/

9.6

MULTI V Wall-Mounted Indoor Unit Engineering Manual

TC: Total Capacity (MBh); SHC: Sensible Heat Capacity (MBh).
Cooling range with the Low Ambient Baffle Kit (sold separately) installed on the outdoor

unit(s) is -9.9°F to +122°F, and is achieved only when all indoor units are operating in

cooling mode. Does not impact heat recovery system synchronous operating range.

The System Combination Ratio must be between 50–130%.

Air

Temp.

(°F DB)

-9.9 6.3 5.3 7.7 6.1 8.6 6.5 9.6 6.9 10.8 7.4 11.4 7.3 12.4 7.3

-5 6.3 5.3 7.7 6.1 8.6 6.5 9.6 6.9 10.8 7.4 11.4 7.3 12.4 7.3
0 6.3 5.3 7.7 6.1 8.6 6.5 9.6 6.9 10.8 7.4 11.4 7.3 12.4 7.3
5 6.3 5.3 7.7 6.1 8.6 6.5 9.6 6.9 10.8 7.4 11.4 7.3 12.4 7.3

10 6.3 5.3 7.7 6.1 8.6 6.5 9.6 6.9 10.8 7.4 11.4 7.3 12.4 7.3
14 6.3 5.3 7.7 6.1 8.6 6.5 9.6 6.9 10.8 7.4 11.4 7.3 12.4 7.3
20 6.3 5.3 7.7 6.1 8.6 6.5 9.6 6.9 10.8 7.4 11.4 7.3 12.4 7.3
23 6.3 5.3 7.7 6.1 8.6 6.5 9.6 6.9 10.8 7.4 11.4 7.3 12.4 7.3
25 6.3 5.3 7.7 6.1 8.6 6.5 9.6 6.9 10.8 7.4 11.4 7.3 12.4 7.3
30 6.3 5.3 7.7 6.1 8.6 6.5 9.6 6.9 10.8 7.4 11.4 7.3 12.4 7.3

35 6.3 5.3 7.7 6.1 8.6 6.5 9.6 6.9 10.8 7.4 11.4 7.3 12.4 7.3
40 6.3 5.3 7.7 6.1 8.6 6.5 9.6 6.9 10.8 7.4 11.4 7.3 12.4 7.3
45 6.3 5.3 7.7 6.1 8.6 6.5 9.6 6.9 10.8 7.4 11.4 7.3 12.4 7.3
50 6.3 5.3 7.7 6.1 8.6 6.5 9.6 6.9 10.8 7.4 11.4 7.3 12.4 7.3
55 6.3 5.3 7.7 6.1 8.6 6.5 9.6 6.9 10.8 7.4 11.4 7.3 12.4 7.3
60 6.3 5.3 7.7 6.1 8.6 6.5 9.6 6.9 10.8 7.4 11.4 7.3 12.3 7.3
65 6.3 5.3 7.7 6.1 8.6 6.5 9.6 6.9 10.8 7.4 11.4 7.3 12.1 7.2
70 6.3 5.3 7.7 6.1 8.6 6.5 9.6 6.9 10.8 7.4 11.4 7.3 11.9 7.1
75 6.3 5.3 7.7 6.1 8.6 6.5 9.6 6.9 10.8 7.4 11.4 7.3 11.6 6.9
80 6.3 5.3 7.7 6.1 8.6 6.5 9.6 6.9 10.8 7.4 11.1 7.3 11.3 6.9
85 6.3 5.3 7.7 6.1 8.6 6.5 9.6 6.9 10.6 7.3 10.8 7.0 11.0 6.6
90 6.3 5.3 7.7 6.1 8.6 6.5 9.6 6.9 10.5 7.2 10.6 6.9 10.8 6.5

95 6.3 5.3 7.7 6.1 8.6 6.5 9.6 6.9 10.3 7.2 10.5 6.8 10.6 6.4
100 6.3 5.3 7.7 6.1 8.6 6.5 9.6 6.9 10.1 7.1 10.3 6.7 10.5 6.4
105 6.3 5.3 7.3 5.8 8.2 6.2 9.2 6.6 9.6 6.6 9.9 6.5 10.2 6.2
110 6.2 5.1 6.9 5.5 7.7 5.8 8.6 6.2 9.0 6.2 9.4 6.2 9.8 6.0
115 6.0 5.0 6.6 5.2 7.2 5.4 8.1 5.9 8.5 5.9 8.9 5.9 9.4 5.8

118 5.9 4.8 6.2 4.9 6.9 5.1 7.8 5.6 8.1 5.6 8.5 5.6 9.0 5.6
122 5.7 4.7 5.9 4.7 6.5 4.8 7.4 5.3 7.7 5.3 8.1 5.3 8.7 5.3

68 / 57 73 / 61 79 / 64 80 / 67 85 / 70 88 / 73 91 / 76

TC SHC TC SHC TC SHC TC SHC TC SHC TC SHC TC SHC

Indoor Air Temperature (°F DB / WB)

Rated capacity is certified under AHRI Standard 1230. Ratings are subject to change
without notice.
Current certified ratings are available at www.ahridirectory.org.

For outdoor unit performance data, see the respective outdoor unit performance data

manuals on https://lghvac.com/commercial.

Low ambient performance with LGRED° heat technology is included in Multi V 5 Air Source Units produced after February 2019.

20 | ART COO L

TM

Due to our policy of continuous product innovation, some specications may change without notication.

© LG Electr onics U.S.A., Inc., Englewood Cl iffs, NJ. All r ights reserved. “LG” is a registered tra demark of LG Corp.

Table 9: ARNU123SFA4 Cooling Capacity Table.

ART COOL GALLERY

Cooling Capacity Tables

ARNU123SFA4

Model No./

Capacity Index

ARNU123SFA4/

12.3

Outdoor

Air

Temp.

(°F DB)

-9.9 8.1 6.8 9.8 7.9 11.1 8.4 12.3 8.9 13.8 9.6 14.7 9.5 15.9 9.5

-5 8.1 6.8 9.8 7.9 11.1 8.4 12.3 8.9 13.8 9.6 14.7 9.5 15.9 9.5
0 8.1 6.8 9.8 7.9 11.1 8.4 12.3 8.9 13.8 9.6 14.7 9.5 15.9 9.5
5 8.1 6.8 9.8 7.9 11.1 8.4 12.3 8.9 13.8 9.6 14.7 9.5 15.9 9.5

10 8.1 6.8 9.8 7.9 11.1 8.4 12.3 8.9 13.8 9.6 14.7 9.5 15.9 9.5
14 8.1 6.8 9.8 7.9 11.1 8.4 12.3 8.9 13.8 9.6 14.7 9.5 15.9 9.5
20 8.1 6.8 9.8 7.9 11.1 8.4 12.3 8.9 13.8 9.6 14.7 9.5 15.9 9.5
23 8.1 6.8 9.8 7.9 11.1 8.4 12.3 8.9 13.8 9.6 14.7 9.5 15.9 9.5
25 8.1 6.8 9.8 7.9 11.1 8.4 12.3 8.9 13.8 9.6 14.7 9.5 15.9 9.5
30 8.1 6.8 9.8 7.9 11.1 8.4 12.3 8.9 13.8 9.6 14.7 9.5 15.9 9.5

35 8.1 6.8 9.8 7.9 11.1 8.4 12.3 8.9 13.8 9.6 14.7 9.5 15.9 9.5
40 8.1 6.8 9.8 7.9 11.1 8.4 12.3 8.9 13.8 9.6 14.7 9.5 15.9 9.5
45 8.1 6.8 9.8 7.9 11.1 8.4 12.3 8.9 13.8 9.6 14.7 9.5 15.9 9.5
50 8.1 6.8 9.8 7.9 11.1 8.4 12.3 8.9 13.8 9.6 14.7 9.5 15.9 9.5
55 8.1 6.8 9.8 7.9 11.1 8.4 12.3 8.9 13.8 9.6 14.7 9.5 15.9 9.5
60 8.1 6.8 9.8 7.9 11.1 8.4 12.3 8.9 13.8 9.6 14.7 9.5 15.7 9.4
65 8.1 6.8 9.8 7.9 11.1 8.4 12.3 8.9 13.8 9.6 14.7 9.5 15.5 9.3
70 8.1 6.8 9.8 7.9 11.1 8.4 12.3 8.9 13.8 9.6 14.7 9.5 15.3 9.1
75 8.1 6.8 9.8 7.9 11.1 8.4 12.3 8.9 13.8 9.6 14.7 9.5 14.9 8.9
80 8.1 6.8 9.8 7.9 11.1 8.4 12.3 8.9 13.8 9.6 14.2 9.4 14.5 8.9
85 8.1 6.8 9.8 7.9 11.1 8.4 12.3 8.9 13.6 9.5 13.8 9.0 14.0 8.5
90 8.1 6.8 9.8 7.9 11.1 8.4 12.3 8.9 13.4 9.3 13.5 8.9 13.8 8.4

95 8.1 6.8 9.8 7.9 11.1 8.4 12.3 8.9 13.2 9.3 13.4 8.8 13.6 8.3
100 8.1 6.8 9.8 7.9 11.1 8.4 12.3 8.9 12.9 9.1 13.2 8.7 13.4 8.3
105 8.1 6.8 9.3 7.5 10.6 8.0 11.8 8.5 12.3 8.5 12.7 8.4 13.0 8.1
110 7.9 6.6 8.9 7.1 9.8 7.5 11.1 8.0 11.6 8.0 12.0 8.0 12.6 7.8
115 7.7 6.4 8.4 6.7 9.2 7.0 10.4 7.6 10.9 7.6 11.4 7.6 12.1 7.5

118 7.5 6.2 8.0 6.4 8.8 6.6 10.0 7.2 10.4 7.2 10.9 7.2 11.6 7.2
122 7.3 6.0 7.6 6.0 8.3 6.2 9.4 6.9 9.8 6.9 10.3 6.9 11.1 6.9

68 / 57 73 / 61 79 / 64 80 / 67 85 / 70 88 / 73 91 / 76

TC SHC TC SHC TC SHC TC SHC TC SHC TC SHC TC SHC

Indoor Air Temperature (°F DB / WB)

Art Cool

TM

Gallery

TC: Total Capacity (MBh); SHC: Sensible Heat Capacity (MBh).
Cooling range with the Low Ambient Baffle Kit (sold separately) installed on the outdoor

unit(s) is -9.9°F to +122°F, and is achieved only when all indoor units are operating in

cooling mode. Does not impact heat recovery system synchronous operating range.

The System Combination Ratio must be between 50–130%.

Rated capacity is certified under AHRI Standard 1230. Ratings are subject to change
without notice.
Current certified ratings are available at www.ahridirectory.org.

For outdoor unit performance data, see the respective outdoor unit performance data

manuals on https://lghvac.com/commercial.

Low ambient performance with LGRED° heat technology is included in Multi V 5 Air Source Units produced after February 2019.

Due to our policy of continuous product innovation, some specications may change without notication.

© LG Electr onics U.S.A., Inc., Englewood Cl iffs, NJ. All r ights reserved. “LG” is a registered tra demark of LG Corp.

ART COOLTM | 21

ART COOLTM GALLERY

Heating Capacity Tables

ARNU093SFA4

Table 10: ARNU093SFA4 Heating Capacity Table.

Model No./

Capacity Index

ARNU093SFA4/

9.6

Outdoor

Air Temp.

°F DB °F WB

-21.6 -22.0 5.5 5.5 5.5 5.5 5.5 5.5 5.5 5.5

-17.1 -17.5 6.2 6.2 6.2 6.2 6.1 6.1 6.1 6.1

-12.6 -13 6.9 6.9 6.9 6.9 6.8 6.8 6.8 6.8

-7 -7.6 7.1 7.1 7.1 7.1 7.0 7.0 7.0 7.0

-4 -4.4 7.3 7.3 7.3 7.3 7.2 7.2 7.2 7.2
0 -0.4 7.5 7.5 7.5 7.5 7.5 7.4 7.4 7.4
5 4.5 8.5 8.4 8.3 8.3 8.3 8.3 8.3 8.3

10 9 8.8 8.8 8.8 8.7 8.7 8.7 8.7 8.7
15 14 9.4 9.4 9.4 9.4 9.4 9.4 9.3 9.2
20 19 9.9 9.9 9.9 9.9 9.7 9.7 9.5 9.4
25 23 10.4 10.4 10.4 10.4 10.4 10.1 10.0 9.5
30 28 10.6 10.6 10.6 10.6 10.6 10.4 10.0 9.5

35 32 10.9 10.9 10.9 10.9 10.8 10.6 10.0 9.5
40 36 11.3 11.3 11.3 11.3 10.9 10.6 10.0 9.5
45 41 11.8 11.8 11.8 11.5 10.9 10.6 10.0 9.5
47 43 12.2 12.1 12.0 11.5 10.9 10.6 10.0 9.5
50 46 13.1 12.5 12.0 11.5 10.9 10.6 10.0 9.5
55 51 13.4 12.6 12.0 11.5 10.9 10.6 10.0 9.5
60 56 13.4 12.6 12.0 11.5 10.9 10.6 10.0 9.5

59 61 64 67 70 73 76 80

TC TC TC TC TC TC TC TC

MBh MBh MBh MBh MBh MBh MBh MBh

Indoor Air Temperature (°F DB)

TC: Total Capacity (MBh).

The System Combination Ratio must be between 50–130%.

Rated capacity is certified under AHRI Standard 1230. Ratings are subject to change
without notice.

Current certified ratings are available at www.ahridirectory.org.

For outdoor unit performance data, see the respective outdoor unit performance data

manuals on https://lghvac.com/commercial.

Low ambient performance with LGRED° heat technology is included in Multi V 5 Air Source Units produced after February 2019.

MULTI V Wall-Mounted Indoor Unit Engineering Manual

22 | ART COO L

TM

Due to our policy of continuous product innovation, some specications may change without notication.

© LG Electr onics U.S.A., Inc., Englewood Cl iffs, NJ. All r ights reserved. “LG” is a registered tra demark of LG Corp.

Table 11: ARNU123SFA4 Heating Capacity Table.

Outdoor

Model No./

Capacity Index

Air Temp.

°F DB °F WB

59 61 64 67 70 73 76 80

TC TC TC TC TC TC TC TC

MBh MBh MBh MBh MBh MBh MBh MBh

-21.6 -22.0 6.9 6.9 6.9 6.9 6.8 6.8 6.8 6.8

-17.1 -17.5 7.7 7.7 7.7 7.7 7.6 7.6 7.6 7.6

-12.6 -13 8.6 8.6 8.6 8.6 8.5 8.5 8.5 8.5

-7 -7.6 8.8 8.8 8.8 8.8 8.7 8.7 8.7 8.7

-4 -4.4 9.1 9.1 9.1 9.1 9.0 9.0 9.0 9.0
0 -0.4 9.4 9.4 9.4 9.4 9.4 9.3 9.3 9.3
5 4.5 10.6 10.5 10.3 10.3 10.3 10.3 10.3 10.3

10 9 11.0 11.0 11.0 10.9 10.9 10.9 10.9 10.9

ARNU123SFA4/

12.3

15 14 11.7 11.7 11.7 11.7 11.7 11.7 11.6 11.4
20 19 12.4 12.4 12.4 12.4 12.1 12.1 11.9 11.8
25 23 12.9 12.9 12.9 12.9 12.9 12.7 12.5 11.9
30 28 13.2 13.2 13.2 13.2 13.2 12.9 12.5 11.9

35 32 13.6 13.6 13.6 13.6 13.5 13.2 12.5 11.9
40 36 14.1 14.1 14.1 14.1 13.6 13.2 12.5 11.9
45 41 14.7 14.7 14.7 14.3 13.6 13.2 12.5 11.9
47 43 15.2 15.1 15.0 14.3 13.6 13.2 12.5 11.9
50 46 16.3 15.6 15.0 14.3 13.6 13.2 12.5 11.9
55 51 16.7 15.8 15.0 14.3 13.6 13.2 12.5 11.9
60 56 16.7 15.8 15.0 14.3 13.6 13.2 12.5 11.9

ART COOLTM GALLERY

Heating Capacity Tables

ARNU123SFA4

Indoor Air Temperature (°F DB)

Art Cool

TM

Gallery

TC: Total Capacity (MBh).

The System Combination Ratio must be between 50–130%.

Rated capacity is certified under AHRI Standard 1230. Ratings are subject to change
without notice.

Current certified ratings are available at www.ahridirectory.org.

For outdoor unit performance data, see the respective outdoor unit performance data

manuals on https://lghvac.com/commercial.

Low ambient performance with LGRED° heat technology is included in Multi V 5 Air Source Units produced after February 2019.

Due to our policy of continuous product innovation, some specications may change without notication.

© LG Electr onics U.S.A., Inc., Englewood Cl iffs, NJ. All r ights reserved. “LG” is a registered tra demark of LG Corp.

ART COOLTM | 23

TM

ART COOL

MIRROR

WALL-MOUNTED

Mechanical Specifications on page 25

General Data on page 27

Electrical Data on page 28

External Dimensions on page 29

Electrical Wiring Diagram on page 31

Refrigerant Flow Diagram on page 32

Acoustic Data on page 33

Air Velocity / Temperature Distribution on page 37

Capacity Tables on page 51

Casing

Units are designed to mount on a vertical surface and come com­plete with an installation mounting guide and a separate hanging
bracket. The unit case is manufactured with coated metal. Cold
surfaces are covered with a coated polystyrene insulating material.

ART COOL MIRROR

Mechanical Specications

Finish

The unit case has a light gray / silver matte finish. The front surface
of the unit has an architectural flat panel smoked mirror finish.

Fan Assembly and Control

The unit has a single, direct-drive, crossflow tangential Sirocco fan
made of high strength ABS BSN-7530 polymeric resin. The fan motor
is a Brushless Digitally Controlled (BLDC) design with permanently
lubricated and sealed ball bearings. The fan motor includes thermal,
overcurrent and low RPM protection. The fan / motor assembly is
mounted on vibration attenuating rubber grommets. The fan impeller
is statically and dynamically balanced. The fan speed is controlled
using a microprocessor-based direct digital control algorithm that
provides a high fan speed in cooling thermal ON and low fan speed
in cooling thermal OFF, high fan speed in heating thermal ON and
fan off in heating thermal OFF. The fan speeds can be field adjusted
between low, medium, and high speeds. The fan speed algorithm
provides a field-selectable fixed-speed or auto-speed setting that
changes the fan speed to simulate natural airflow.

Air Filter

Return air is filtered with a removable, washable filter with anti-fun­gal treatment. Filter access is from the front of the unit without the
use of tools.

Airflow Guide Vanes
5–15 MBh

The indoor unit is provided with a motorized oscillating guide vane
that automatically changes the direction of up-and-down airflow.
The indoor unit includes factory installed, manually adjustable guide
vanes that control the side-to-side direction of supplied airflow.

operation parameters, excluding the operating schedule, are
stored in non-volatile memory resident on the unit microprocessor.
Operating schedules are stored in select models of the optional,
wall-mounted, local or central controllers. The field-supplied commu­nication cable between the indoor unit(s) and outdoor unit is to be
a minimum of 18 AWG, 2 conductor, stranded, and shielded cable
(RS-485), terminated via screw terminals on the control boards.
The microprocessor control provides the following functions: auto
addressing, self-diagnostics, auto restart following power restoration,
test run, and will operate the indoor unit using one of five operation
modes:

1. Auto Changeover (Heat Recovery only)

2. Heating

3. Cooling

4. Dry

5. Fan Only

For Heat Recovery systems the Auto Changeover setting automati­cally switches control of the indoor unit between Cooling and Heating
modes based on space temperature conditions.

For Heat Pump systems, heated or cooled air delivery is dependent
upon outdoor unit operating mode. In Heating mode, the micropro­cessor control will activate indoor unit operation when the indoor
room temperature falls below set-point temperature. At which point,
a signal is sent to the outdoor unit to begin the heating cycle. The in­door unit fan operation is delayed until coil pipe temperature reaches
76°F. Significant airflow is generated when pipe temperature reaches
80°F. A field-selectable option maintains fan operation for 30 minutes
following cooling cycle operations. The unit is equipped with an in­frared receiver designed to communicate with an LG wireless remote
controller. In lieu of wireless remote or factory return air thermistor,
screw terminals on the microprocessor circuit board accommodate
various models of wall-mounted local controllers. The unit micropro­cessor is capable of accepting space temperature readings concur­rently or individually from either:

Art Cool

TM

Mirror

18-24 MBh

The indoor unit is provided with a motorized sweeping guide vane
that automatically changes the direction of airflow from side-to-side
and up-and-down.

Microprocessor Control

The unit is provided with an integrated microprocessor controller
capable of performing functions necessary to operate the system
without the use of a wall-mounted controller. A temperature
thermistor is factory mounted in the return air stream. All unit

Due to our policy of continuous product innovation, some specications may change without notication.

© LG Electr onics U.S.A., Inc., Englewood Cl iffs, NJ. All r ights reserved. “LG” is a registered tra demark of LG Corp.

1. Wall-mounted wired controller(s)

2. Factory-mounted return air thermistor

A single indoor unit has the capability of being controlled by up to
two local wired controllers. The microprocessor controls space tem­perature using the value provided by the temperature sensor sensing
a space temperature that is farthest away from the temperature
set-point. The microprocessor control provides a cooling or heating
mode test cycle that operates the unit for 18 minutes without regard
to the space temperature. If the system is provided with an optional

ART COOLTM | 25

ART COOL MIRROR

Mechanical Specications

wall-mounted local or central controller, displayed diagnostic codes
are specific, alpha-numeric, and provide the service technician with a
reason for the code displayed.

Indoor units have built-in Wi-Fi and can be controlled by LG’s Smart
ThinQ™ app on a smart device. A field-supplied Wi-Fi network and
smart device are required. The Smart ThinQ app is free, and is avail­able for Android™ and iOS. (Android is a trademark of Google LLC.)

Handling Condensate

The unit is designed for gravity draining of condensate. LG provides
a factory insulated flexible drain hose. If condensate lift / pumps are
needed for the application, they are to be field provided.

Condensate Drain Pan

The condensate drain pan is constructed of expandable polystyrene
resin (EPS).

Coil

The indoor unit coil is constructed with grooved design copper tubes
with slit coil fins, two (2) rows, eighteen (18) fins per inch.

Controls Features

• Auto changeover (Heat Recovery only)

• Auto operation

• Auto clean (coil dry; requires wireless controller)

• External on/off control

• Dual thermistor control

• Dual setpoint control

• Filter life display

• Group control

• Forced operation

• Hot start

• Self diagnostics

• Timer (on/off)

• Weekly schedule

• Auto direction/swing (up/down)

• Wi-Fi

• Auto Fan

• Leak detection

*To enable Generation 4 features, outdoor unit DIP Switch No. 3 must be
set to ON. Please refer to the Multi V 5, Multi V IV, Multi V Water IV, Multi
V S Engineering Manual for additional information.

MULTI V Wall-Mounted Indoor Unit Engineering Manual

26 | ART COO L

TM

Due to our policy of continuous product innovation, some specications may change without notication.

© LG Electr onics U.S.A., Inc., Englewood Cl iffs, NJ. All r ights reserved. “LG” is a registered tra demark of LG Corp.

ART COOL MIRROR

General Data

Table 12: Art Cool Mirror Wall-Mounted (SJ, SK Frames) Indoor Unit General Data.

Model No. ARNU053SJR4 ARNU073SJR4 ARNU093SJR4 ARNU123SJR4 ARNU153SJR4 ARNU183SKR4 ARNU243SKR4

Cooling Mode Performance

Capacity (Btu/h)

Power Input1 (W)
H / M / L Power Input at
Factory Default (W)

Heating Mode Performance

Capacity (Btu/h)

Power Input1 (W)
H / M / L Power Input at
Factory Default (W)

Entering Mixed Air

Cooling Max (°F WB)

Heating Min (°F DB)

2

2

Unit Data

Refrigerant Type3

Refrigerant Control

Sound Pressure4 dB(A)

(H / M / L)

Net Unit Weight (lbs.)

Shipping Weight (lbs.)

Communication Cable5

(No. x AWG)

Fan

Type

Quantity

Motor / Drive

Airflow Rate H / M / L

(CFM)

Piping

Liquid Line (in., O.D.)

Vapor Line (in., O.D.)

Condensate Line

(in., I.D.)

5,500 7,500 9,600 12,300 15,400 19,100 24,200

30 30 30 30 30 53 53

11 / 10 / 9 12 / 11 / 9 13 / 12 / 9 15 / 13 / 11 23 / 18 / 11 32 / 26 / 16 39 / 26 / 16

6,100 8,500 10,900 13,600 17,100 21,500 25,600

30 30 30 30 30 53 53

11 / 10 / 9 12 / 11 / 9 13 / 12 / 9 15 / 13 / 11 23 / 18 / 11 32 / 26 / 16 39 / 26 / 16

76 76 76 76 76 76 76
59 59 59 59 59 59 59

R410A R410A R410A R410A R410A R410A R410A

EEV EEV EEV EEV EEV EEV EEV

30 / 29 / 28 32 / 30 / 28 34 / 32 / 28 37 / 34 / 30 42 / 39 / 32 43 / 39 / 34 46 / 41 / 34

20.2 20.2 20.2 20.2 20.2 29.5 29.5

27.7 27.7 27.7 27.7 27.7 38.8 38.8

2 x 18 2 x 18 2 x 18 2 x 18 2 x 18 2 x 18 2 x 18

Cross Flow Cross Flow Cross Flow Cross Flow Cross Flow Cross Flow Cross Flow

1 1 1 1 1 1 1

Brushless Digitally Controlled / Direct

240 / 230 / 208 254 / 240 / 208 275 / 254 / 208 300 / 254 / 240 371 / 336 / 240 494 / 424 / 371 537 / 449 / 371

1/4 Flare 1/4 Flare 1/4 Flare 1/4 Flare 1/4 Flare 1/4 Flare 3/8 Flare
1/2 Flare 1/2 Flare 1/2 Flare 1/2 Flare 1/2 Flare 1/2 Flare 5/8 Flare

5/8 5/8 5/8 5/8 5/8 5/8 5/8

Art Cool

TM

Mirror

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.
All capacities are net with a combination ratio between 95-105%.
Rated capacity is certified under AHRI Standard 1230. Ratings are subject to change

without notice. Current certified ratings are available at www.ahridirectory.org.

1

Max. power input is rated at maximum setting value.

2

Low ambient performance with LGRED° heat technology is included in Multi V 5 Air

Due to our policy of continuous product innovation, some specications may change without notication.

© LG Electr onics U.S.A., Inc., Englewood Cl iffs, NJ. All r ights reserved. “LG” is a registered tra demark of LG Corp.

Source Units produced after February 2019.

3

Take appropriate actions at the end of HVAC equipment life to recover, recycle, reclaim or
destroy R410A refrigerant according to applicable regulations (40 CFR Part 82, Subpart F)
under section 608 of CAA.

4

Sound Pressure levels are tested in an anechoic chamber under ISO Standard 3745.

5

All communication cable to be minimum 18 AWG, 2-conductor, twisted, stranded, shielded
and must comply with applicable local and national codes. Ensure the communication
cable is properly grounded at the master outdoor unit only. Do not ground the ODU-IDU
communication cable at any other point.

ART COOLTM | 27

ART COOL MIRROR

Electrical Data

Table 13: Art Cool Mirror Wall-Mounted Indoor Unit Electrical Data.

Power Supply Power Input (W)

Hz Volts Phase

Max.

Cooling

Max.

Heating

H / M/ L at

Factory Default

Model Number

Voltage

Range

MCA MOP

Rated

Amps (A)

SJ Frames

ARNU053SJR4

ARNU073SJR4 0.31 0.25 30 30 12 / 11 / 9

ARNU093SJR4 0.31 0.25 30 30 13 / 12 / 9

ARNU123SJR4 0.31 0.25 30 30 15 / 13 / 11

ARNU153SJR4 0.31 0.25 30 30

187-253

0.31

15

0.25

60 208-230V 1

30 30

11 / 10 / 9

23 / 18 / 11

SK Frames

ARNU183SKR4

ARNU243SKR4 0.65 0.52 53 53 39 / 26 / 16

MCA : Minimum Circuit Ampacity.
MOP : Maximum Overcurrent Protection.

Units are suitable for use on an electrical system where voltage supplied to unit terminals is within the listed range limits.
Select wire size based on the larger MCA value.
Instead of fuse, use the circuit breaker.

Max. power input is rated at maximum setting value.

187-253

0.65
15

0.52
60 208-230V 1

53 53 32 / 26 / 16

MULTI V Wall-Mounted Indoor Unit Engineering Manual

28 | ART COOL

TM

Due to our policy of continuous product innovation, some specications may change without notication.

© LG Electr onics U.S.A., Inc., Englewood Cl iffs, NJ. All r ights reserved. “LG” is a registered tra demark of LG Corp.

ART COOL MIRROR

Figure 11: ARNU053SJR4, ARNU073SJR4, ARNU093SJR4, ARNU123SJR4, ARNU153SJR4 Dimensions.

2-3/16

2-1/16

Knock Out Hole for

Refrigerant / Drain Piping

and Power Wiring /

Communication Cable

External Dimensions

SJ Frame

Unit: Inch

2-3/16

Panel

28-1/8

Knock Out Hole for

Refrigerant / Drain Piping

and Power Wiring /

Communication Cable

Terminal Block

Location for Power /

Communication

Communication

Line

Piping Direction

2-1/16

5/16

1. Unit should be installed in compliance with the installation manual.

2. Unit should be grounded in accordance with local, state, and federal codes and regulations.

3. All field-supplied electrical codes and materials must comply with local, state, and federal codes and

regulations.

4. Review the electrical information provided in the engineering and installation manuals for instructions

on choosing the power wiring, circuit breaker; designing the electrical system; and installation.

3/8

Approx. 11-5/16 to vapor piping.

Approx. 8-9/16 to liquid piping.

2-3/16

Controller

Signal

Receiver

12-1/8

Remote

Display

and

Knock Out Hole for

Refrigerant / Drain Piping

and Power Wiring /

Communication Cable

32-5/16

7-9/16

5-15/16

30-3/16

Art Cool

TM

Mirror

Drain Hose

1-1/2

Connection

1-7/8

Attaching the installation plate, drilling hole

6

3-7/8

10-3/8

Ø2-9/16

5-5/16

2-1/2

3-11/16

Connecting vapor / liquid piping

15/16

32-15/16

5-3/16

Drain Hose

Connection

12-1/8

7-5/8

Installation Plate

15/16

5-1/4

7-13/16

Ø2-9/16

10-3/8

12-1/8

Due to our policy of continuous product innovation, some specications may change without notication.

© LG Electr onics U.S.A., Inc., Englewood Cl iffs, NJ. All r ights reserved. “LG” is a registered tra demark of LG Corp.

12-1/16

2-1/2

3-11/16

2-1/2

32-15/16

ART COOLTM | 29

ART COOL MIRROR

External Dimensions

SK Frame

Figure 12: ARNU183SKR4, ARNU243SKR4 Dimensions.

Panel

Terminal Block

Location for Power /

Communication

Knock Out Hole for

Refrigerant / Drain Piping

and Power Wiring /

Communication Cable

Communication

Line

Piping Direction

2-3/8

2-15/16

34-5/16

2-3/8

Signal

Receiver

13-9/16

and Power

Wiring /

Communication

Cable

Display

and

Remote

Controller

Knock Out

Hole for

Refrigerant /

Drain Piping

39-5/16

Unit: Inch

6-11/16

36-1/8

2-3/8

1. Unit should be installed in compliance with the installation manual.

2. Unit should be grounded in accordance with local, state, and federal codes and regulations.

3. All field-supplied electrical codes and materials must comply with local, state, and federal codes and

regulations.

4. Review the electrical information provided in the engineering and installation manuals for instructions

on choosing the power wiring, circuit breaker; designing the electrical system; and installation.

7/16

7/16

2-3/8

Approx. 6-5/16 to liquid piping.

Approx. 9-7/16 to vapor piping.

Drain Hose

Connection

1-7/16

MULTI V Wall-Mounted Indoor Unit Engineering Manual

Connecting vapor / liquid piping

39-5/16

Drain Hose

Connection

6-7/8

13-9/16

8-3/8

Knock Out Hole for

Refrigerant / Drain Piping

and Power Wiring /

Communication Cable

11-13/16

Ø2-9/16

5-15/16

2-1/16

Attaching the installation plate, drilling hole

3-1/4

4-1/2

5-1/4

2-3/8

Installation Plate

14-11/16

14-1/16

2-3/8

3-1/4

5-15/16

Ø2-9/16

7-3/8

2-1/16

2-3/4

11-13/16

13-9/16

39-5/16

30 | ART COO L

TM

Due to our policy of continuous product innovation, some specications may change without notication.

© LG Electr onics U.S.A., Inc., Englewood Cl iffs, NJ. All r ights reserved. “LG” is a registered tra demark of LG Corp.