LG ARNU123SFA4, ARNU053SJA4, ARNU123SJA4, ARNU093SJA4, ARNU073SJA4 Installation Manual

...

WALL-MOUNTED INDOOR UNIT

INSTALLATION MANUAL

Art Cool™ Mirror Wall-Mounted

5,500 to 24,200 Btu/h

Standard Wall-Mounted

5,500 to 35,500 Btu/h

Art Cool™ Gallery

9,600 and 12,300 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.

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.

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.

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.

TABLE OF CONTENTS

Safety Instructions ....................................................................................................................................................................................4

Introduction ...........................................................................................................................................................................................8-10

Unit Nomenclature ...................................................................................................................................................................................11

R410A Refrigerant ...................................................................................................................................................................................12

General Data .......................................................................................................................................................................................13-19

Dimensions .........................................................................................................................................................................................20-23

Refrigerant Flow Diagrams ................................................................................................................................................................24-26

General Installation Guidelines .........................................................................................................................................................27-33

Mounting .............................................................................................................................................................................................34-35

Refrigerant Piping ..............................................................................................................................................................................36-41

Piping Install .......................................................................................................................................................................................42-49

Refrigerant Piping Connections ........................................................................................................................................................50-54

Final Install ..........................................................................................................................................................................................55-58

Installation Manual

Wiring ..................................................................................................................................................................................................59-74

Controls Setup ....................................................................................................................................................................................75-81

Installation Checklist ..........................................................................................................................................................................82-83

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

SAFETY INSTRUCTIONS

WARNING

DANGER

WARNING

CAUTION

DANGER

The instructions below must be followed to prevent product malfunction, property damage, injury or death to the user or other people. Incorrect operation due to ignoring any instructions will cause harm or damage. The level of seriousness is classified by the symbols below.

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.

Note:

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

This symbol indicates an action that must not be performed.

INSTALLATION

Don’t use or store ammable gas or combustibles near the unit.

There is risk of product failure, re, explosion, and physical injury or death.

Do not install, remove the unit by yourself (customer). Ask

the dealer or an authorized technician to install the unit.

Improper installation by the user may result in water leakage, re, explosion, electric shock, physical injury or death.

For replacement of an installed unit, always contact a trained LG service provider.

There is risk of re, electric shock, explosion, and physical injury or death.

Multi V Wall-Mounted Indoor Unit

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 commissioning 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.

If cover panels are not installed securely, dust, water and animals may

enter the unit, causing re, electric shock, and physical injury or death.

Always check for system refrigerant leaks after the unit has been installed or serviced.

Exposure to high concentration levels of refrigerant gas may lead to illness or death.

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

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 ame or extreme heat. Do not touch the unit with wet hands.

There is risk of re, electric shock, explosion, and physical injury or death.

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.

If the pressure switch, thermal switch, or other protection device is shorted and forced to operate improperly, or parts other than those

specied by LG are used, there is risk of re, electric shock, explosion,

and physical injury or death.

If the air conditioner is installed in a small space, take measures to prevent the refrigerant concentration from exceeding safety limits in the event of a refrigerant leak.

Consult the latest edition of ASHRAE (American Society of Heating, Refrigerating, and Air Conditioning Engineers) Standard 15. If the refrigerant leaks and safety limits are exceeded, it could result in personal injuries or death from oxygen depletion

CAUTION

SAFETY INSTRUCTIONS

INSTALLATION – CONTINUED

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.

• Support the unit a minimum of four points to avoid slippage from rigging apparatus.

Note:

Properly insulate all cold surfaces to prevent “sweating.”

Cold surfaces such as uninsulated pipe can generate condensate that may

drip and cause a slippery oor condition and/or water damage to walls.

When installing the unit in a hospital, mechanical room, or

similar electromagnetic eld (EMF) sensitive environment, provide sufcient protection against electrical noise.

Inverter equipment, power generators, high-frequency medical equipment, 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 preserving 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 according 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.

Don’t store or use ammable gas / combustibles near the

unit.

There is risk of product failure.

Always check for system refrigerant leaks after the unit has been installed or serviced.

Low refrigerant levels may cause product failure

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 system and authorization to do so has been obtained from the commissioning agent.

There is a risk of refrigerant contamination, refrigerant loss and equipment damage.

Installation Manual

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

SAFETY INSTRUCTIONS

DANGER

WARNING

WIRING

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.

The information contained in this manual is intended for use

by an industry-qualied, experienced, certied electrician

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-

formed properly, it may result in re, electric shock, physical 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

Multi V Wall-Mounted Indoor Unit

connected between the two units. Do not allow strain on this cable.

Poor cable connections can cause equipment malfunction.

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.

There is risk of re, electric shock, explosion, physical injury or death.

Refer to local, state, and federal codes, and use power wires

of sufcient current capacity and rating.

Wires that are too small may generate heat and cause a re.

Secure all eld wiring connections with appropriate wire

strain relief.

Improperly securing wires will create undue stress on equipment power

lugs. Inadequate connections may generate heat, cause a re and

physical injury or death.

Properly tighten all power connections.

Loose wiring may overheat at connection points, causing a re, physical

injury or death.

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

OPERATION

DANGER

WARNING

CAUTION

Do not provide power to or operate the unit if it is ooded

or submerged.

There is risk of re, electric shock, physical injury or death.

Use a dedicated power source for this product.

There is risk of re, electric shock, physical injury or death.

Do not operate the disconnect switch with wet hands.

There is risk of re, electric shock, physical injury or death.

Do not allow water, dirt, or animals to enter the unit.

There is risk of unit failure, re, electric shock, physical injury or death.

Avoid excessive cooling and periodically perform ventilation to the unit.

Inadequate ventilation is a health hazard.

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 cover(s) removed; keep ngers and clothing away from moving parts.

The rotating, hot, cold, and high-voltage parts of the unit can cause physical injury or death.

Periodically check power cable and connection for damage.

Cable must be replaced by the manufacturer, its service agent, or similar

qualied persons in order to avoid physical injury and/or electric shock.

SAFETY INSTRUCTIONS

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 operating the unit.

If the unit is mounted in an enclosed, low-lying, or poorly ventilated area

and the system develops a refrigerant leak, it may cause re, electric

shock, explosion, physical injury or death.

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-

static lter, if the unit includes one.

The unit contains sharp, rotating, hot, and high voltage parts that can

cause personal injury and/or electric shock.

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.

There is risk of unit failure, re, electric shock, physical injury or death.

Securely attach the electrical cover to the unit.

Non-secured electrical covers can result in burns or electric shock due to dust or water in the service panel.

Installation Manual

To avoid physical injury, use caution when cleaning or servicing the air conditioner.

Note:

Clean up the site after installation is nished, and check

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 specialpurpose 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.

Starting operation with a cold compressor sump(s) may result in severe bearing damage to the compressor(s). Keep the power switch on during the operational season.

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

Do not block the inlet or outlet.

Unit may malfunction.

Securely attach the electrical cover to the indoor unit. Non-

secured covers can result in re due to dust or water in the

service panel.

Periodically verify the equipment mounts have not deteriorated.

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.

INTRODUCTION

WARNING

Gallery and Wall-Mounted Indoor Units

This manual describes how to install LG Art Cool™ Gallery, Standard, and Art 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 installation. 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.

Figure 1: Art Cool Gallery (Gen 4) Indoor Unit.

Figure 2: Standard Wall-Mounted Indoor Unit.

Figure 3: Art Cool Mirror Wall-Mounted Indoor Unit.

Installation work must be performed by trained personnel and in accordance with national wiring standards and all local or other applicable

Multi V Wall-Mounted Indoor Unit

codes. Improper installation can result in re, electric shock, physical

injury, or death and can prevent proper operation of the unit.

Note:

Please read all instructions before installing this product. Become familiar with the unit’s components and connections, and the order of installation. Incorrect installation can degrade or prevent proper operation.

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

Required Parts (factory provided)

Art Cool Gallery (Gen 4) Indoor Units

• Installation guide (One [1] Each)

• Type “A” screws (Four [4] Each)

• Plastic anchors (Four [4] 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 (field provided)

• Connecting cable (power and control)

• Pipes - vapor line and liquid line, with insulation

• Additional drain hose

INTRODUCTION

Installation Manual

Required Tools (field provided)

• 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

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

INTRODUCTION

Table 1: Multi V Wall-Mounted Indoor Units

Unit Model Number

ART COOL Gallery (Gen 4)

ARNU093SFA4

ARNU123SFA4

Standard (Gen 4)

ART COOL Mirror (Gen 4)

Multi V Wall-Mounted Indoor Unit

ARNU053SJA4 ARNU073SJA4 ARNU093SJA4 ARNU123SJA4 ARNU153SJA4 ARNU183SKA4 ARNU243SKA4

ARNU303SVA4

ARNU363SVA4

ARNU053SJR4 ARNU073SJR4 ARNU093SJR4 ARNU123SJR4

ARNU153SJR4 ARNU183SKR4 ARNU243SKR4

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

UNIT NOMENCLATURE

ARN U 05 3 SJ A

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

Installation Manual

TT = 1-Way Ceiling Cassette 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 U = Uncased

Generation

2 = Second

4 = Fourth

A = Second, Revision A

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

R410A REFRIGERANT

WARNING

R410A Refrigerant

R410A refrigerant 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.

R410A refrigerant is an azeotrope of R32 and R125, mixed at 50:50, so the ozone depletion potential (ODP) is 0.

Do not place refrigerant cylinder in direct sunlight. Refrigerant cylinder may explode causing severe injury or death.

Note

• Because R410A is 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.

• Do not use any piping that has not been approved for use in high-pressure refrigerant systems. Piping wall thickness must comply with

the applicable local, state, and federal codes for the 551 psi design pressure of R410A. Inadequate piping may fail when pressurized.

Refrigerant Safety

Verify the maximum refrigerant concentration level in the space where the indoor unit will be mounted meets the concentration limit for the application.

ASHRAE Standards 15-2010 and 34-2010 offer guidelines that address refrigerant safety and the maximum allowable concentration of refrigerant in an occupied space. Refrigerant will dissipate into the atmosphere, but a certain volume of air is required for this to occur safely. For R410A refrigerant, the maximum allowable concentration of refrigerant is twenty-six (26) lbs. per 1,000 cubic feet of an occupied space. Buildings with twenty-four (24) hour occupancy allow half of that concentration.

ASHRAE Standards 15 and 34 assume that if a system develops a leak, its entire refrigerant charge will dump into the area where the leak occurs. To meet ASHRAE Standards 15 and 34, calculate the refrigerant concentration that may occur in the smallest room volume on the system, and compare the results to the maximum allowable concentration number.1 Also consult state and local codes in regards to refrigerant safety.

Information about ASHRAE Standard 15-2010/34-2010 and addenda current as of the date of this publication.

Multi V Wall-Mounted Indoor Unit

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

Table 2: Art Cool Gallery (SF Frames) Indoor Unit General Data

Model No. ARNU093SFA4 ARNU123SFA4

Cooling Mode Performance

Capacity (Btu/h)

9,600 12,300

Max. Power Input1 (W)

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

28 /16 / 10 32 / 20 /12

Heating Mode Performance

Capacity (Btu/h)

10,900 13,600

Max. Power Input1 (W)

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

28 /16 / 10 32 / 20 /12

Entering Mixed Air

Cooling Max (°F WB)

Heating Min (°F DB)

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)

R410A R410A

EEV EEV

38 / 32 / 27 44 / 38 / 32

33.1 33.1

38.1 38.1

2 x 18 2 x 18

Fan

Type

Turbo Fan Turbo Fan

Quantity

Motor/Drive

Airflow Rate H/M/L (CFM)

Brushless Digitally Controlled / Direct

286 / 222 / 148 328 / 272 / 212

Piping

Liquid Line (in., O.D.)

Vapor Line (in., O.D.)

1/4 Flare 1/4 Flare

1/2 Flare 1/2 Flare

Condensate Line (in., I.D.)

ART COOLTM GALLERY

General Data

35 35

76 76

59 59

Installation Manual

1 1

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. 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.

Max. power input is rated at maximum setting value.

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 specifications may change without notification.

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.

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

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 COOL GALLERY

Electrical Data

Table 3: 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)

SF Frames

ARNU093SFA4

ARNU123SFA4 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 60 208-230V 1 35 35

28 /16 / 10

Multi V Wall-Mounted Indoor Unit

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

ART COOL MIRROR

General Data

Table 4: 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) Max. Power Input1 (W)

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

Heating Mode Performance

Capacity (Btu/h) Max. Power Input1 (W)

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

Entering Mixed Air

Cooling Max (°F WB) Heating Min (°F DB)

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

Installation 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.

Max. power input is rated at maximum setting value.

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 specifications may change without notification.

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

ART COOL MIRROR

Electrical Data

Table 5: 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

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.

187-253

0.65 15

0.52 60 208-230V 1

53 53 32 / 26 / 16

Multi V Wall-Mounted Indoor Unit

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

Table 6: Standard Wall-Mounted (SJ Frames) Indoor Unit General Data.

Model No. ARNU053SJA4 ARNU073SJA4 ARNU093SJA4 ARNU123SJA4 ARNU153SJA4

Cooling Mode Performance

Capacity (Btu/h)

Max. Power Input1 (W)

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

5,500 7,500 9,600 12,300 15,400

30 30 30 30 30

11 / 10 / 9 12 / 11 / 9 13 / 12 / 9 15 / 13 / 11 23 / 18 / 11

Heating Mode Performance

Capacity (Btu/h)

Max. Power Input1 (W)

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

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

30 30 30 30 30

11 / 10 / 9 12 / 11 / 9 13 / 12 / 9 15 / 13 / 11 23 / 18 / 11

Entering Mixed Air

Cooling Max (°F WB)

Heating Min (°F DB)

76 76 76 76 76

59 59 59 59 59

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)

R410A R410A R410A R410A R410A

EEV EEV EEV EEV EEV

30 / 29 / 28 32 / 30 / 28 34 / 32 / 28 37 / 34 / 30 42 / 39 / 32

18.5 18.5 18.5 18.5 18.5

24.9 24.9 24.9 24.9 24.9

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

Fan

Type

Quantity

Cross Flow Cross Flow Cross Flow Cross Flow Cross Flow

1 1 1 1 1

Motor/Drive

Airflow Rate H/M/L (CFM)

240 / 230 / 208 254 / 240 / 208 275 / 254 / 208 300 / 254 / 240 371 / 336 / 240

Piping

Liquid Line (in., O.D.)

Vapor Line (in., O.D.)

Condensate Line (in., I.D.)

1/4 Flare 1/4 Flare 1/4 Flare 1/4 Flare 1/4 Flare

1/2 Flare 1/2 Flare 1/2 Flare 1/2 Flare 1/2 Flare

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

STANDARD WALL-MOUNTED

General Data

Installation Manual

Brushless Digitally Controlled / Direct

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.

Max. power input is rated at maximum setting value.

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 specifications may change without notification.

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

STANDARD WALL-MOUNTED

General Data

Table 7: Standard Wall-Mounted (SK and SV Frames) Indoor Unit General Data.

Model No. ARNU183SKA4 ARNU243SKA4 ARNU303SVA4 ARNU363SVA4

Cooling Mode Performance

Capacity (Btu/h)

Max. Power Input1 (W)

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

Heating Mode Performance

Capacity (Btu/h)

Max. Power Input1 (W)

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

Entering Mixed Air

Cooling Max (°F WB)

Heating Min (°F DB)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

Multi V Wall-Mounted Indoor Unit

Motor/Drive

Airflow Rate H/M/L (CFM)

Piping

Liquid Line (in., O.D.)

Vapor Line (in., O.D.)

Condensate Line (in., I.D.)

19,100 24,200 30,000 35,500

53 53 67.0 104.0

32 / 26 / 16 39 / 26 / 16 54 / 43 / 31 85 / 51 / 36

21,500 25,600 32,000 37,000

53 53 67.0 104.0

32 / 26 / 16 39 / 26 / 16 54 / 43 / 31 85 / 51 / 36

76 76 76 76

59 59 59 59

R410A R410A R410A R410A

EEV EEV EEV EEV

43 / 39 / 34 46 / 41 / 34 49 / 44 / 42 52 / 47 / 43

26.9 26.9 37 37

35.3 35.3 48 48

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

Cross Flow Cross Flow Cross Flow Cross Flow

1 1 1 1

494 / 424 / 371 537 / 449 / 371 812 / 706 / 600 918 / 812 / 671

1/4 Flare 3/8 Flare 3/8 Flare 3/8 Flare

1/2 Flare 5/8 Flare 5/8 Flare 5/8 Flare

5/8 5/8 5/8 5/8?

Brushless Digitally Controlled / Direct

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.

Max. power input is rated at maximum setting value.

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 specifications may change without notification.

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

Table 8: Standard Wall-Mounted Indoor Unit Electrical Data.

STANDARD WALL-MOUNTED

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

ARNU053SJA4

ARNU073SJA4 0.31 0.25 30 30

ARNU093SJA4 0.31 0.25 30 30

ARNU123SJA4 0.31 0.25 30 30 15 / 13 / 11

ARNU153SJA4 0.31 0.25 30 30 23 / 18 / 11

187-253

0.31

0.25

30 30 11 / 10 / 9

60 208-230 1

SK Frames

ARNU183SKA4

ARNU243SKA4 0.65 0.52 53 53 39 / 26 / 16

187-253

0.65 15

0.52 60 208-230 1

53 53 32 / 26 / 16

SV Frames

ARNU303SVA4

ARNU363SVA4 1.02 0.81 104.0 104.0 85 / 51 / 36

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

187-253

0.64 15

0.51 60 208-230 1

67.0 67.0 54 / 43 / 31

12 / 11 / 9

13 / 12 / 9

Installation Manual

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

Air Inlet Grille

ART COOLTM GALLERY

External Dimensions

SF Frame

Figure 4: ARNU093SFA4, ARNU123SFA4 Dimensions.

Air Outlet Grille

23-5/8

Piping Access Hole

5-3/4

23-5/8

Air Outlet Grille

Multi V Wall-Mounted Indoor Unit

20-11/16

Attachment Hole

Air Outlet Grille

Attachment Hole

19-11/16

Unit: inches

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

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

STANDARD WALL-MOUNTED

Unit: Inch

Connecting vapor / liquid piping, drain hose

Attaching the installation plate, drilling hole

30-3/16

5-15/16

32-3/16

12-7/16

28-1/8

2-3/16

2-1/6

2-11/16

7-7/16

3/8

2-3/8

5/16

2-1/16

32-15/16

12-1/16

3-11/16 3-11/16

2-1/2

10-3/8

12-1/8

5-9/16

7-13/16

Ø2-9/16

3-7/8

15/16

5-1/4

7-5/8

Approx. 18-11/16 to vapor piping.

Approx. 14-3/8 to liquid piping.

Approx. 12-3/16 to drain hose.

12-1/8

1-1/2

5-3/16

32-15/16

Knock Out Hole for

Refrigerant / Drain Piping

and Power Wiring /

Communication Cable

Drain Hose

Connection

Drain Hose

Connection

Installation Plate

Terminal Block

Location for Power /

Communication

Panel

Display and Remote

Controller Signal

Receiver

Communication

Line

Piping Direction

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.

Figure 5: ARNU053SJA4, ARNU073SJA4, ARNU093SJA4, ARNU123SJA4, ARNU153SJA4 Dimensions.

External Dimensions

SJ Frame

Installation Manual

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

STANDARD WALL-MOUNTED

External Dimensions

SK Frame

Figure 6: ARNU183SKA4, ARNU243SKA4 Dimensions.

Drain Piping and

Power Wiring /

Communication

Cable

2-3/8

2-13/16

Panel

Knock Out Hole

for Refrigerant /

Unit: Inch

6-3/4

Communication

Line

Piping Direction

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.

Multi V Wall-Mounted Indoor Unit

Terminal Block

Location for Power /

Communication

and Power Wiring /

Communication Cable

34-5/16

Knock Out Hole for

Refrigerant / Drain Piping

2-3/8

1-7/16

Connecting vapor / liquid piping, drain hose

7/16

2-3/8

Drain Hose

Connection

13-15/16

Approx. 18-11/16 to vapor piping.

Approx. 14-3/8 to liquid piping.

Approx. 12-3/16 to drain hose.

Attaching the installation plate, drilling hole

38-3/8

Display and Remote

Controller Signal

Receiver

8-1/4

5-1/4

3-1/4

2-3/8

11-13/16

Ø2-9/16

2-1/16

5-15/16

Installation Plate

36-1/8

4-1/2

14-11/16

39-5/16

2-3/8

Drain Hose

Connection

6-7/16

13-9/16

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

3-1/4

5-15/16

7-3/8

Ø2-9/16

11-13/16

13-9/16

2-1/16

2-3/4

36-3/16

14-1/16

Figure 7: ARNU303SVA4, ARNU363SVA4 Dimensions.

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

2. Unit must be grounded in accordance with the local regulations or applicable national codes.

3. The Unit is powered from the outdoor unit. Therefore power cable should be connected with the outdoor unit.

Note:

Left rear piping Right rear piping

1-11/16

5-1/2

5-29/32

6-9/16

Installation plate

[Unit : inch]

Unit Outline

6-9/16

1-11/16

40-9/16

46-27/32

10-7/16

13-5/8

STANDARD WALL-MOUNTED

External Dimensions

SV Frame

Installation Manual

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

ART COOLTM GALLERY

Refrigerant Flow Diagram

SF Frame

Figure 8: SF Frame Piping Diagram.

Strainer

Table 9: 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

Multi V Wall-Mounted Indoor Unit

Table 10: SF Frame Thermistors.

Thermistor Description

TH1 Return air thermistor

TH2 Pipe in thermistor

TH3 Pipe out thermistor

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

Figure 9: SJ, SK, and SV Frame Piping Diagram.

STANDARD WALL-MOUNTED

Heat Exchanger

C.F.F.

TH2

EEV

Refrigerant Flow Diagram

SJ, SK, SV Frames

Cooling Heating

Filter

TH1

Table 11: SJ, SK, and SV Frame Refrigerant Pipe Connection Port Diameters.

Model Liquid (inch) Vapor (inch)

SJ Frames

ARNU053SJA4

ARNU073SJA4

ARNU093SJA4

ARNU123SJA4

ARNU153SJA4

SK Frames

ARNU183SKA4 1/4 Flare 1/2 Flare

ARNU243SKA4 3/8 Flare 5/8 Flare

SV Frames

ARNU303SVA4

ARNU363SVA4

1/4 Flare 1/2 Flare

3/8 Flare 5/8 Flare

lndoor unit

Installation Manual

Table 12: SJ, SK, and SV Frame Thermistors.

Thermistor Description

TH1 Return air and pipe in thermistor

TH2 Pipe out thermistor

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

ART COOLTM MIRROR

Refrigerant Flow Diagram

SJ and SK Frames

Figure 10: SJ, SK Frame Piping Diagram.

Heat Exchanger

C.F.F.

TH2

EEV

Cooling Heating

Filter

TH1

Table 13: SJ, SK Frame Refrigerant Pipe Connection Port Diameters.

Model Liquid (inch) Vapor (inch)

SJ Frames

ARNU053SJR4

ARNU073SJR4

ARNU093SJR4

Multi V Wall-Mounted Indoor Unit

SK Frames

ARNU123SJR4

ARNU153SJR4

ARNU183SKR4 1/4 Flare 1/2 Flare

ARNU243SKR4 3/8 Flare 5/8 Flare

1/4 Flare 1/2 Flare

lndoor unit

Table 14: SJ, SK Frame Thermistors.

Thermistor Description

TH1 Return air and pipe in thermistor

TH2 Pipe out thermistor

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

+ 58 hidden pages

LG ARNU123SFA4, ARNU053SJA4, ARNU123SJA4, ARNU093SJA4, ARNU073SJA4 Installation Manual

Specifications and Main Features

Frequently Asked Questions

User Manual