LG LA120HYV1 User manual

SINGLE ZONE ART COOL PREMIER WALL
MOUNTED INSTALLATION MANUAL
Single Zone Art Cool Premier Wall Mount:
LA090HYV1, LA120HYV1
LA180HYV1, LA240HYV1

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.
A summary list of safety precautions begins on page 3.
For more technical materials such as submittals, engineering
databooks, and catalogs, visit www.lghvac.com.
For continual product development, LG Electronics U.S.A., Inc., reserves the right to change specifications without notice.
©LG Electronics U.S.A., Inc.
This document, as well as all reports, illustrations, data, information, and other materials are the property of LG Electronics U.S.A., Inc.
PROPRIETARY DATA NOTICE
This document, as well as all reports, illustrations, data, information, and
other materials are the property of LG Electronics U.S.A., Inc., and are
disclosed by LG Electronics U.S.A., Inc., only in confidence.
This document is for design purposes only.
IM_SZ_ArtCoolPremier_HYV1_4_16

3
Safety Instructions
Due to our policy of continuous product innovation, some specifications may change without notification.
©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
SAFETY INSTRUCTIONS
The instructions below must be followed to prevent product malfunction, property damage, injury or death to the user or other people. Incor-
rect operation due to ignoring any instructions will cause harm or damage. The level of seriousness is classified by the symbols described
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.
This symbol Indicates situations that may result in equipment or property damage accidents only.
This symbol indicates an action should not be completed.
CAUTION
INSTALLATION
Do not install, remove, or re-install the unit by yourself
(customer). Ask the dealer or an LG trained technician to
install the unit.
Improper installation by the user may result in re, explosion, electric
shock, physical injury or death.
For replacement of an installed unit, always contact a
LG trained service provider.
There is risk of re, electric shock, explosion, and physical injury or
death.
Wear protective gloves when handling equipment. Sharp
edges may cause personal injury.
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.
Replace all control box and panel covers.
If cover panels are not installed securely, dust, water and animals may
enter the outdoor unit, causing re, electric shock, and physical injury or
death.
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.
The unit is shipped with refrigerant and service valves
closed. Do not run the compressor with the service valves
closed.
There is a risk of equipment damage, explosion, physical injury, or
death.
Install the unit considering the potential for strong winds or
earthquakes.
Improper installation may cause the unit to fall over, resulting in 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 person-
al injuries or death from oxygen depletion.
Install the unit in a safe location where nobody can step on or
fall onto it. Do not install the unit on a defective stand.
It may result in an accident that causes physical injury or death.
Don’t store or use ammable gas/combustibles near the unit.
There is risk of product failure, re, explosion, and physical injury or death.

4
Single Zone Art Cool Premier Wall Mounted Installation Manual
Due to our policy of continuous product innovation, some specifications may change without notification.
©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
SAFETY INSTRUCTIONS
INSTALLATION - CONTINUED
Replace all control box and panel covers.
If cover panels are not installed securely, dust, water and animals may
enter the outdoor 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.
Periodically check that the outdoor frame is not damaged.
There is a risk of explosion, physical injury, or death.
Be very careful when transporting the product.
Use appropriate moving equipment to transport each unit; ensure
the equipment is capable of supporting the unit’s weight.
• Some products use polypropylene bands for packaging. Do not
use the polypropylene bands to lift the unit because they will not support
the unit’s weight.
• Suspend the outdoor unit from the base at specied positions.
Support the outdoor unit a minimum of four points to avoid slippage
from rigging apparatus.
Properly insulate all cold surfaces to prevent “sweating.”
Cold surfaces such as uninsulated piping can generate condensate that
may drip and cause a slippery surface condition.
Do not install the product where it is exposed to directly
to ocean winds.
Sea salt in the air may cause the product to corrode. Corrosion,
particularly on the condenser and evaporator ns, could cause product
malfunction or inefcient operation.
When installing the unit in a low-lying area, or a location that
is not level, use a raised concrete pad or concrete blocks to
provide a solid, level foundation.
This may prevent water damage and reduce abnormal vibration.
Properly insulate all cold surfaces to prevent “sweating.”
Cold surfaces such as uninsulated piping can generate condensate that
may drip and cause 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 equip-
ment, or radio communication equipment may cause the air conditioner
to operate improperly. The unit may also affect such equipment by
creating electrical noise that disturbs medical treatment or image broad-
casting.
Do not use the product for mission critical or special pur-
pose applications such as preserving foods, works of art, or
other precision air conditioning applications. The 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.
When connecting refrigerant tubing, remember to allow for
pipe expansion.
Improper piping may cause refrigerant leaks and system malfunction.
Do not install the outdoor unit in a noise-sensitive area.
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 frame is not damaged.
There is a risk of equipment damage
.
Do not store or use ammable gas/combustibles near the
unit.
There is a risk of product failure.
Install the drain hose to ensure adequate drainage.
There is a risk of water leakage and property damage.

5
Safety Instructions
Due to our policy of continuous product innovation, some specifications may change without notification.
©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
SAFETY INSTRUCTIONS
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.
There is risk of re, electric shock, physical injury or death.
Turn the power off at the nearest disconnect before servicing
the equipment.
Electrical 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.
WIRING
The information contained in this manual is intended for use
by an industry-trained, experienced 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 personal injury or death.
All electric work must be performed by a licensed electrician
and conform to local building codes or, in the absence of
local codes, with the National Electrical Code, and the
instructions given in this manual.
If the power source capacity is inadequate or the electric work is not
performed properly, it may result in re, electric shock, 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 result
in physical injury or death.
Properly tighten all power lugs.
Loose wiring may overheat at connection points, causing a re, physical
injury or death.
Do not change the settings of the protection devices.
If the pressure switch, thermal switch, or other protection devices are
bypassed or forced to work 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.
Do not supply power to the unit until all electrical wiring,
controls wiring, piping, installation, and refrigerant system
evacuation are completed.
The information contained in this manual is intended for
use by an industry-trained, 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 or property damage.
OPERATION
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.
Periodically verify the equipment mounts have not
deteriorated.
If the base collapses, the unit could fall and cause physical injury or death.
Use inert (nitrogen) gas when performing leak tests or air
purges. Do not use compressed air, oxygen, or ammable
gases.
Using these substances may cause re, explosion, and physical injury
or death.
If refrigerant 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 a re,
electric shock, explosion, physical injury or death.
Do not allow water, dirt, or animals to enter the unit.
There is risk of re, electric shock, physical injury or death.
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.

6
Single Zone Art Cool Premier Wall Mounted Installation Manual
Due to our policy of continuous product innovation, some specifications may change without notification.
©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
SAFETY INSTRUCTIONS
To avoid physical injury, use caution when cleaning or
servicing the air conditioner.
OPERATION - CONTINUED
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 the product for mission critical or special pur-
pose applications such as preserving foods, works of art, or
other precision air conditioning applications. The equipment
is designed to provide comfort cooling and heating.
Oil, steam, sulfuric smoke, etc., can signicantly reduce the performance
of the unit, or damage its parts.
Turn on the power at least six (6) hours before operation
begins.
Starting operation immediately after turning on the main power switch
can result in severe damage to the compressor(s).
Do not turn off the main power switch after operation has
been stopped.
Wait at least ve (5) minutes before turning off the main power
switch, otherwise it may result in product malfunction.
Do not block the inlet or outlet.
Unit may malfunction.
Do not allow water, dirt, or animals to enter the unit.
There is risk of unit failure.
Do not operate the unit with the panel(s) or protective
cover(s) removed; keep ngers and clothing away from mov-
ing parts.
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.

7
Due to our policy of continuous product innovation, some specifications may change without notification.
©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
TABLE OF CONTENTS
Safety Instruction .................................................................................. 3
General Data .......................................................................................... 8
Unit Nomenclature............................................................................... 8
Art Cool Premier Unit Specications ................................................... 9
Electrical.............................................................................................11
R410A Refrigerant............................................................................. 12
General Installation Guidelines.......................................................... 13
Location Selection ............................................................................. 13
Oceanside Applications ..................................................................... 14
Mounting Bolt Location...................................................................... 15
Required Clearances......................................................................... 16
Mounting of Indoor Unit Installation Plate.......................................... 18
Mounting of Indoor Unit ..................................................................... 19
Piping Preparation............................................................................. 20
Piping Materials and Handling........................................................... 22
Piping Support, Elbow Usage............................................................ 27
Refrigerant Piping System Layout..................................................... 28
Refrigerant Piping Connections......................................................... 29
Refrigerant Piping System Limitations............................................... 29
Installation Overview ......................................................................... 30
Directional Pipe Formation ................................................................ 31
Drain Hose......................................................................................... 32
Outdoor Unit Connections ................................................................. 33
Indoor Unit Connections.................................................................... 34
Indoor Unit Connections - Conduit Bracket Placement ..................... 35
Bundling and Cutting Line ................................................................. 36
Refrigerant Piping Insulation ............................................................. 37
Pipe Sleeves at Penetrations ............................................................ 39
Leak Test/Soap Method Check.......................................................... 40
Evacuation of Lines ........................................................................... 41
Finishing Up....................................................................................... 41
Wireless Controller ............................................................................ 42
Pump Down, Cooling Only Mode ...................................................... 43
Electrical Wiring .................................................................................. 44
General Information and Safety Guidelines....................................... 44
Power Wiring Specications and Best Practices............................... 45
Controllers ......................................................................................... 47
Indoor Unit Electrical Connections .................................................... 48
Outdoor Unit Electrical Connections.................................................. 50
Self Diagnosis Functions .................................................................. 52
LG SIMS - Self Diagnosis Functions ................................................ 54
Troubleshooting .................................................................................. 56
Error Codes ...................................................................................... 56
Refrigerant Leaks .............................................................................. 59
Installation Checklist........................................................................... 60

8
Single Zone Art Cool Premier Wall Mounted Installation Manual
Due to our policy of continuous product innovation, some specifications may change without notification.
©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
GENERAL DATA
Unit Nomenclature
Single Zone Wall Mount Indoor and Outdoor Units
LA N090 HYV 1
Generation
Indoor/Outdoor Product
HEV = Mega
HXV = Mega 115V
HYV = Art Cool Premier
HVP = Art Cool Gallery
HSV = Art Cool Mirror, High Efficiency
HV = Standard
HLV = Extended Pipe
Nominal Capacity
(Nominal cooling capacity in Btu/h)
090/091 = 9,000
120/121 = 12,000
180/181 = 18,000
240 = 24,000
300/307 = 30,000
360 = 36,000
Type
N = Indoor Wall Mount Unit
U = Outdoor Heat Pump Unit
Family
LA= Art Cool Premier/Gallery/Mirror
LS= High Efficiency Wall Mount/Standard/ Mega

9
Product Data
Due to our policy of continuous product innovation, some specifications may change without notification.
©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
GENERAL DATA
Art Cool Premier Unit Specications
Table 1: Art Cool Premier Unit Specications
EEV: Electronic Expansion Valve IDU: Indoor Unit ODU: Outdoor Unit
Power wiring is field supplied and must comply with the applicable local and national codes.
This unit comes with a dry helium charge.
This data is rated 0 ft above sea level, with 24.6 ft of refrigerant line per indoor unit and a 0 ft level
difference between outdoor and indoor units.
Cooling capacity rating obtained with air entering the indoor coil at 80ºF dry bulb (DB) and 67ºF wet
bulb (WB); and outdoor ambient conditions of 95ºF dry bulb (DB) and 75ºF wet bulb (WB).
Heating capacity rating obtained with air entering the indoor unit at 70ºF dry bulb (DB) and 60ºF wet
bulb (WB); and outdoor ambient conditions of 47ºF dry bulb (DB) and 43ºF wet bulb (WB).
1Power Input is rated at high speed.
2ODU cooling range down to 0ºF with optional wind baffle.
3Take 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.
4Sound Pressure levels are tested in an anechoic chamber under ISO Standard 1996.
5All power/communication cables to be minimum 18AWG, 4 conductor, stranded, shielded or unshield-
ed. If shielded, must be grounded at Outdoor unit chassis only. Must comply with applicable national
code.
Type Art Cool Premier
System (Model)
LA090HYV1
(LAN090HYV1/
LAU090HYV1)
LA120HYV1
(LAN120HYV1/
LAU120HYV1)
LA180HYV1
(LAN180HYV1/
LAU180HYV1)
LA240HYV1
(LAN240HYV1/
LAU240HYV1)
Cooling Capacity (Min~Rated~Max) (Btu/h) 1,023~9,000~12,966 1,023~11,000~13,785 3,070 ~ 18,200 ~ 29,515 3,070 ~ 22,000 ~ 30,000
Cooling Power Input1(kW) 0.58 0.80 1.35 1.76
Heating Capacity (Min~Rated~Max) (Btu/h) 1,023~11,000~20,472 1,023~12,000~22,178 3,070 ~ 22,000 ~ 30,709 3,070 ~ 27,000 ~ 35,200
Heating Power Input1(kW) 0.71 0.75 1.69 2.19
COP 4.54 4.68 3.81 3.61
Maximum Heating Capacity (Btu/h)
Outdoor 17 °F(WB)/Indoor 70 °F(DB) 11,940 (109%) 14,650 (122%) 22,340 (102%) 27,410 (102%)
Outdoor 5°F(WB)/Indoor 70 °F(DB) 11,220 (102%) 13,720 (114%) 19,300 (88%) 23,690 (88%)
Outdoor -13 °F(WB)/Indoor 70 °F(DB) 7,920 (72%) 9,520 (79%) 14,060 (64%) 17,250 (64%)
EER 15.65 13.75 13.48 12.50
SEER 27.5 25.5 24 22
HSPF 12.0 12.0 12.5 12
Power Supply (V / Hz / Ø) 208-230/60/1
ODU Operating Range
Cooling (°F DB)214-118
Heating (°F WB) (-13)-65
IDU Operating Range
Cooling (°F WB) 53-75
Heating (°F DB) 60-86
Indoor Temperature Setting Range
Cooling (°F) 64-86
Heating (°F) 60-86
Unit Data
Refrigerant Type3R410A
Refrigerant Control EEV
IDU Sound Pressure4dB(A)+3
(H/M/L/Sleep) 42/36/25/17 47/42/37/29
ODU Sound Pressure dB(A) 45 57
Unit Weight (lbs)
Indoor Unit (Net/Shipping) 24/30 34/38
Outdoor Unit (Net/Shipping) 77/82 122/131
Power/Communication Cable5
(No. x AWG) 4 x 18

10
Single Zone Art Cool Premier Wall Mounted Installation Manual
Due to our policy of continuous product innovation, some specifications may change without notification.
©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
GENERAL DATA
Table 1: Art Cool Premier Unit Specications - Continued
Art Cool Premier Unit Specications
Type Art Cool Premier Art Cool Premier
System (Model)
LA090HYV1
(LAN090HYV1/
LAU090HYV1)
LA120HYV1
(LAN120HYV1/
LAU120HYV1)
LA180HYV1
(LAN180HYV1/
LAU180HYV1)
LA240HYV1
(LAN240HYV1/
LAU240HYV1)
Fan
Indoor Type (Qty) Cross Flow (1)
Outdoor Type (Qty) Propeller (1)
Motor/Drive Brushless Digitally Controlled/Direct
Airflow Rate
Indoor - Max/H/M/L (CFM) 547/494/417/283 742/565/424/318 777/565/424/318
Outdoor - Max (CFM) 1,165 2,119
Piping
Liquid Line (in, OD) 1/4 3/8
Vapor Line (in, OD) 3/8 5/8
Condensation Line (OD | ID) 27/32 | 5/8
Additional Refrigerant Charge (oz/ft) 0.22 0.38
Pipe Length (Minimum/Maximum) (ft)56.6/65.6 9.8/98.4
Piping Length (no add’l refrigerant, ft)541.0 24.6
Max Elevation Difference (ft) 32.8 65.6
EEV: Electronic Expansion Valve IDU: Indoor Unit ODU: Outdoor Unit
Power wiring is field supplied and must comply with the applicable local and national codes.
This unit comes with a dry helium charge.
This data is rated 0 ft above sea level, with 24.6 ft of refrigerant line per indoor unit and a 0 ft level
difference between outdoor and indoor units.
Cooling capacity rating obtained with air entering the indoor coil at 80ºF dry bulb (DB) and 67ºF wet
bulb (WB); and outdoor ambient conditions of 95ºF dry bulb (DB) and 75ºF wet bulb (WB).
Heating capacity rating obtained with air entering the indoor unit at 70ºF dry bulb (DB) and 60ºF wet
bulb (WB); and outdoor ambient conditions of 47ºF dry bulb (DB) and 43ºF wet bulb (WB).
5Piping lengths are equivalent.

11
Product Data
Due to our policy of continuous product innovation, some specifications may change without notification.
©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
GENERAL DATA
Table 2: Art Cool Premier Electrical Data
Electrical
Unit Model Nos. Nom.
Tons
Compressor
Qty
Compressor(A)
Cool/Heat Fan Qty ODU Fan(A) IDU Fan(A) MCA(A) MOP(A)
Art Cool Premier
LA090HYV1 3/4 1 8.3/8.3 1 0.40 0.40 11.2 15
LA120HYV1 1 1 8.3/8.3 1 0.40 0.40 11.2 15
LA180HYV1 1-1/2 1 14.5/14.5 1 0.50 0.30 19.0 25
LA240HYV1 2 1 14.5/14.5 1 0.50 0.30 19.0 25
For component model nos.
Voltage tolerance is ±10%.
Maximum allowable voltage unbalance is 2%.
MCA = Minimum Circuit Ampacity
ODU Fan = Outdoor Unit Fan Motor
IDU Fan = Indoor Unit Fan Motor
Maximum Overcurrent Protection (MOP) is calculated as follows:
(Largest motor FLA x 2.25) + (Sum of other motor FLA) rounded down
to the nearest standard fuse size.
Table 3: Art Cool Premier Models

12
Single Zone Art Cool Premier Wall Mounted Installation Manual
Due to our policy of continuous product innovation, some specifications may change without notification.
©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
GENERAL DATA
R410A Refrigerant
• Piping wall thickness must comply with the applicable local, state, and federal codes for the 551 psi design pressure of R410A.
• Do not use any piping that has not been approved for use in high-pressure refrigerant systems.
• Do not heat refrigerant piping more than necessary during installation. Excessive heat can cause the pipe to soften.
• Because R410A is a combination of R32 and R125, the required additional refrigerant must be charged in its liquid state. If the refrig-
erant is charged in its gaseous state, its composition changes and the system will not work properly.
R410A Refrigerant - 0% Ozone Depleting
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 the refrigerant cylinder in direct sunlight. Exposure to direct sunlight can cause the refrigerant cylinder to explode,
resulting in death or severe injury.

13
General Installation Guidelines
Due to our policy of continuous product innovation, some specifications may change without notification.
©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
GENERAL INSTALLATION GUIDELINES
Location Selection
Selecting the Best Location
DANGER
• Do not install the unit in an area where combustible gas may generate, flow, stagnate, or leak. These conditions can cause a fire, resulting
in bodily injury or death.
• Do not install the unit in a location where acidic solution and spray (sulfur) are often used as it can cause bodily injury or death.
• Do not use the unit in environments where oil, steam, or sulfuric gas are present as it can cause bodily injury or death.
CAUTION
• When the outdoor unit operates in defrost mode, sidewalks or parking lots near the unit may accumulate moisture that can turn to ice, resulting
in slipping and personal injury.
Note:
Select a location for installing the outdoor unit that will meet the following conditions:
• Where the unit will not be subjected to direct thermal radiation from other heat sources.
• Where operating sound from the unit will not disturb inhabitants of surrounding buildings.
• Where the unit will not be exposed to direct, strong winds.
• Where there is enough strength to bear the weight of the unit.
• Include space for drainage to ensure condensate flows properly out of the unit when it is in heating mode.
• Include enough space for air flow and for service access.
• Install a fence to prevent vermin from crawling into the unit or unauthorized individuals from accessing it. Maintain all recommended clearances.
Note:
To ensure the outdoor unit operates properly, certain measures are required in locations where there is a possibility of heavy snowfall or severe wind
chill or cold:
1. Prepare for severe winter wind chills and heavy snowfall, even in areas of the country where these are unusual phenomena.
2. Position the outdoor unit so that its airflow fans are not buried by direct, heavy snowfall. If snow piles up and blocks the airflow, the
system may malfunction.
3. Remove any snow that has accumulated 4 inches or more on the top of the outdoor unit.
4. Place the outdoor unit on a raised platform at least 20 inches higher than the average annual snowfall for the area. If the frame width is wider
than the outdoor unit, snow may accumulate.
5. Install a snow protection hood.
6. To prevent snow and heavy rain from entering the outdoor unit, install the suction and discharge ducts facing away from direct winds.
7. Additionally, the following conditions should be taken into consideration when the unit operates in defrost mode:
• If the outdoor unit is installed in a highly humid environment (near an ocean, lake, etc.), ensure that the site is well-ventilated and has a lot of
natural light. (Example: Install on a rooftop.)
Note:
The indoor unit may take longer to provide heat, or heating performance will be reduced in winter if the unit is installed:
1. In a narrow, shady location.
2. Near a location that has a lot of ground moisture.
3. In a highly humid environment.
4. In an area in which condensate does not drain properly.
Ambient Air Conditions
WARNING
• Avoid exposing the unit to sources of extreme temperature or gases to prevent serious bodily injury.
Note:
• Avoid exposing the outdoor unit to steam, combustible gases, or other corrosive elements.
• Avoid exposing the unit to discharge from boiler stacks, chimneys, steam relief ports, other air conditioning units, kitchen vents, plumbing
vents, or substances that may degrade performance or cause damage to the unit.
• When installing multiple outdoor units, avoid placing the units where discharge of one outdoor unit will blow into the inlet side of an adjacent unit.

14
Single Zone Art Cool Premier Wall Mounted Installation Manual
Due to our policy of continuous product innovation, some specifications may change without notification.
©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
GENERAL INSTALLATION GUIDELINES
• Avoid installing the outdoor unit where it would be directly exposed
to ocean winds.
• Install the outdoor unit on the side of the building opposite from
direct ocean winds.
• Select a location with good drainage.
• Periodically clean dust or salt particles off of the heat exchanger
with water.
• If the outdoor unit must be placed in a location where it would
be subjected to direct ocean winds, install a concrete windbreak
strong enough to block any winds.
• Windbreak should be more than 150% of the outdoor unit’s height.
There must be 2 to 3-1/2 inches of clearance between the outdoor
unit and the windbreaker for purposes of air flow. Additional anti-corrosion treatment may need to be applied to the
outdoor unit at oceanside locations.
Ocean winds may cause corrosion, particularly on the condenser and
evaporator ns, which, in turn could cause product malfunction or
inefcient performance.
Oceanside Applications
Figure 1: Oceanside Placement Using Windbreak
Figure 2: Placement Using Building as Shield
Oceanside Applications
Use of a Windbreak to Shield from Sea Wind
Sea wind
Windbreak
Oceanside Applications
Use of a Building to Shield from Sea Wind
Sea wind
Sea wind
Building
Building
If a windbreak is not possible, a building or larger structure must
be used to shield the outdoor unit from direct exposure to the sea
wind. The unit should be placed on the side of the building directly
opposite to the direction of the wind as shown in Figure 2.

15
General Installation Guidelines
Due to our policy of continuous product innovation, some specifications may change without notification.
©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
GENERAL INSTALLATION GUIDELINES
Mounting Bolt Location
General Mounting
Securely attach the outdoor unit to a condenser pad, base rails, or
another mounting platform that is securely anchored to the ground
or building structure. Attach the outdoor unit with bolts and nuts on a
concrete or rigid mount. See Figure 3. Follow applicable local codes
for clearance, mounting, anchor and vibration attenuation require-
ments.
All referenced materials are to be eld-supplied. Images are not to scale.
Figure 3: Outdoor Unit Mounting Methods
Bolt
Placement
& Anti-Vibration
Pad
Piping Connection
Top of Unit
Foundation
Mounting Platform
The underlying structure or foundation must be designed to support
the weight of the unit. Avoid placing the unit in a low lying area
where water may accumulate. When installing the outdoor unit on
the wall, or roof top, anchor the mounting base securely to account
for wind, earthquake or vibration.
Tie-Downs and Wind Restraints
The strength of the Duct-free Split Single Zone Inverter system
frame is adequate to be used with field-provided wind restraint tie-
downs. The overall tie-down configuration must be approved by a
local professional engineer.
Always refer to local code when designing a wind restraint system.
Snow and Ice Conditions
In climates that experience snow build-up, place the unit on a raised platform to ensure condenser airflow. The raised support platform must
be high enough to allow the unit to remain above possible snow drifts. Mount the unit on a field-provided snow stand at a minimum height
that is equal to the average annual snowfall plus 20 inches. Design the mounting base to prevent snow accumulation on the platform in front
or back of the unit case. If necessary, provide a field fabricated hood to keep snow and ice and/or drifting snow from accumulating on the coil
surfaces. Use inlet and discharge duct or hoods to prevent snow or rain from accumulating on the fan inlet and outlet guards. Best practice
prevents snow from accumulating on top of the unit. Consider tie-down requirements in case of high winds or where required by local codes.
CAUTION
When deciding on a location to place the outdoor unit, be sure to choose an area where run-off from defrost will not accumulate and freeze on
sidewalks or driveways. Ice is a slipping hazard and can cause personal injury.

16
Single Zone Art Cool Premier Wall Mounted Installation Manual
Due to our policy of continuous product innovation, some specifications may change without notification.
©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
GENERAL INSTALLATION GUIDELINES
Proper airflow through the Single Zone outdoor unit coil is critical for correct unit operation. When installing, consider service, inlet and outlet,
and minimum allowable space requirements as illustrated in the diagrams below.
Required Clearances
Minimum Clearance Requirements for Single Zone
Specific clearance requirements in the diagram below are for the single zone wall mount systems. Figure 4 shows the overall minimum
clearances that must be observed for safe operation and adequate airflow around the outdoor unit.
When placing the outdoor unit under an overhang, awning, sunroof or other roof-like structure, observe the clearance requirements (as shown in
Figure 5) for height in relation to the unit. This clearance ensures that heat radiation from the condenser is not restricted around the unit.
Adhere to all clearance requirements if installing the unit on a roof. Be sure to level the unit and ensure that the unit is adequately anchored.
Consult local codes for rooftop mounting requirements.
Figure 4: Outdoor Unit Clearances
Outdoor Unit Clearance
12
28 24
12
24
Unit : inch
Do not place the unit where animals and/or plants will be in the path of the warm air, or where warm air and/or noise will disturb neighbors.
Figure 5: Outdoor Unit Sunroof/Awning Clearances
More than
12
More than
12
Sunroof
Fence or
obstacles
More than
28 Unit : inch
More than
24
More than 8 inches
More than 4 inches
More than
4 inches
At least 6.5 feet from the oor
Outdoor Unit Clearance
Indoor Unit Clearance
Follow recommended best practices when choosing an indoor loca-
tion for the Single Zone indoor unit.
• Keep unit away from any indoor steam or excessive heat.
• No obstacles should be placed around unit.
• Condensation drain (Leakage piping) should be routed away from
the unit.
• Do not install near doorway.
• Clearance gap between any wall or enclosure and the left or right
side of the unit must be greater than 4 inches.
• From the top of the unit to the ceiling there must be greater than 8
inches of clearance.
• Unit should be at least 6.5 feet from the oor for adequate clearance.

17
General Installation Guidelines
Due to our policy of continuous product innovation, some specifications may change without notification.
©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
GENERAL INSTALLATION GUIDELINES
Required Clearances
Minimum Clearance Requirements for Single Zone - Continued
See Figure 6 for minimum ODU service access spacing.
Figure 6: ODU Service Access Clearance
A
BD
G
C
G
C
D
E
D
D
B
B
F
19-11/16 inch
19-11/16 inch or less
19-11/16 inch
19-11/16 inch or less
Case 1
Unit : inch A B C D E F G
Case 1 Normal 11-13/16 23-19/32 — 11-13/16 — — —
Minimum 3-15/16 9-27/32 — 3-15/16 — — 39-3/8
Case 2 Normal — — 19-11/16 — — — —
Minimum — — 13-25/32 — — — 39-3/8
Case 3 Normal — — 19-11/16 11-13/16 — — —
Minimum — — 13-25/32 3-15/16 — — —
Case 4 Normal — — — 23-19/32 — —
Minimum — — — 3-15/16 7-7/8 78-3/4 —
Case 5 Normal — 23-19/32 — 11-13/16 — — —
Minimum — 9-27/32 — 3-15/16 — — —
Case 2 Case 3
Case 4 Case 5
11-13/16

18
Single Zone Art Cool Premier Wall Mounted Installation Manual
Due to our policy of continuous product innovation, some specifications may change without notification.
©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
GENERAL INSTALLATION GUIDELINES
Mounting of Indoor Unit Installation Plate
Follow this procedure and best practices when mounting the indoor
unit’s plate to a wall.
Note:
Select location carefully. Unit should be anchored to a strong wall to
prevent unnecessary vibration.
WARNING
• When choosing a location for the wall mount plate, be sure to take
into consideration routing of wiring for power outlets within the wall.
Touching wiring can cause serious bodily injury, or death.
• Use caution when drilling holes through the walls for the purposes
of piping connections. Touching power wiring with tools or bare skin
can cause serious bodily injury, or death.
Procedure
1. Locate the installation plate and five Type A screws (Figure 8).
2. Position the installation plate horizontally on the wall. Align the
centerline, and use a leveling tool to ensure the plate is level.
(Figure 9).
3. Secure plate to the wall with the five Type A screws (Figure 10).
If mounting on a concrete wall, use field-supplied anchor bolts.
4. Observe the left and right rear piping clearance when drilling into
the wall.
Mounting Installation Plate to Wall
Figure 7: Drilling Piping Hole
Figure 8: Provided Installation Parts
Drilling Piping Hole in the Wall
Follow the left or right piping clearance recommendations as shown
in Figure 9.
1. Using a 2 5/8 (ø65mm) inch hole core drill bit, drill a hole at
either the right or left side of the wall mounting (Figure 10).
• The slant of the hole should be 3/16” to 5/16” from level with the
slant being upward on the indoor unit side and downward
on the outdoor unit side (Figure 7).
2. Finish off the hole as shown with bushing and sleeve
covering. The sleeve and bushing prevents damage to
the tubing/bundling of the piping.
(3/16"~5/16")
Indoor
WALL
Outdoor
Bushing
Core Drill
Sleeve
Figure 9: LAN090HYV1 / LAN120HYV1 Installation Plate Dimensions
See Refrigerant Piping Connections for Indoor Unit on
page 52 to proceed with piping.
Installation plate
Type "A" screw
Type "B" screw
Type "C" screw
Type "D" screw
Bracket
Wireless controller
holder
Figure 10: Installation Plate
Type A Screws
Installation
Plate
Chassis
Hook
Type "A"
Screws (5)
Ø2-9/16
4-13/16 6-11/16
Right
rear
piping
Left
rear
piping
Installation Plate
Place a level on raised tabIndoor Unit Outline
8-17/32
6-29/32
Unit: inch
17 17-5/16
Ø2-9/16
Figure 11: LAN180HYV1 / LAN240HYV1 Installation Plate Dimensions
Left
rear
piping
Unit Outline
61/5-1261/11-12
Unit : Inch
2-3/8
1-7/16
1-5/16
13
Ø2-9/16
3-15/16
7-3/16
Ø2-9/16
2-3/4
7-11/16
Installation Plate
Right
rear
piping
Place a level on raised tab

19
General Installation Guidelines
Due to our policy of continuous product innovation, some specifications may change without notification.
©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
GENERAL INSTALLATION GUIDELINES
Mounting the Indoor Unit to the Installation Plate
Installation plate
Indoor unit
3”
Spacer
1
2
1. Hook the indoor unit onto the upper portion of the installation
plate [(1) Figure 12].
2. Engage the hooks at the top of the indoor unit with the upper
edge of the installation plate. Ensure that the hooks are properly
seated on the installation plate by moving it left and right.
3. Unlock the Drain Hose Holder (L-bracket) from the chassis and
anchor it between the chassis and the installation plate. Correct
anchoring should separate the bottom of the inside unit from the
wall (Figure 13).
4. Move the bottom of indoor unit towards the installation plate to
anchor to wall [(2) Figure 12]. It helps to press the lower left and
right sides of the unit against the installation plate until the hooks
engage into their slots. You will hear a clicking sound as the
bottom successfully attaches to the installation plate.
5. Finish by inserting and tightening two type “C” screws into the
bottom of the installation plate (Figure 14).
• Pay attention to the positioning of the piping through any wall as
shown in the figure, as you insert the screws to the indoor unit.
Preparing for Piping/Electrical Connection
1. To prepare indoor unit for piping, disengage bottom on indoor unit
from installation plate by loosening screws at the bottom of the
indoor unit.
• This step will separate the indoor unit’s bottom side from the wall
mount in order to route drain hose correctly. See Figure 15 as a
reference of the rear view of the indoor unit.
2. Once hose is properly routed at rear of unit, move the bottom of
the indoor unit towards the installation plate to anchor back to
wall.
3. Optionally, go to Refrigerant Piping Connections section
of this manual to continue with piping connections to the indoor
unit.
4. Optionally, go to Electrical Connections section of this manu-
al to continue with conduit/electrical wiring to the indoor unit.
Figure 12: Mounting Unit on Installation Plate
Figure 13: Mounting Unit on Installation Plate
Figure 14: Chassis Cover Removal from Indoor Unit
Figure 15: Rear View of IDU
side of the indoor unit from the wall .
Installation Plate
Drain Hose
Holder
L-bracket
Mounting of Indoor Unit
Chassis cover
12
Conduit bracket
“D” screws
IDU - Rear View

20
Single Zone Art Cool Premier Wall Mounted Installation Manual
Due to our policy of continuous product innovation, some specifications may change without notification.
©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
GENERAL INSTALLATION GUIDELINES
Piping Preparation
• Do not allow the refrigerant to leak during brazing; if the refrigerant combusts, it generates a toxic gas that can cause serious bodily
injury or death.
• Do not braze in an enclosed location, and always test for gas leaks before/after brazing. Trapped gas from enclosed locations can lead
to bodily injury or death.
3. Flaring the pipe end.
• Use the proper size flaring tool to finish flared connections as
shown.
• ALWAYS create a 45° flare when working with R410A.
See WARNING on this page.
Creating a Flare Fitting
One of the main causes of refrigerant leaks is defective ared
connections. Create ared connections using the procedure shown in
Figure 17.
1. Cut the pipe to length.
• Measure the distance between the indoor unit and the outdoor unit.
• Cut the pipes a little longer than measured distance.
• Cut the cable 4.9 ft longer than the pipe length.
2A. Remove the burrs.
• Completely remove all burrs from pipe ends.
• When removing burrs, point the end of the copper pipe down to
avoid introducing foreign materials in the pipe.
2B. Slide the flare nut onto the copper tube.
Copper
tube
90° Slanted Uneven Rough
Pipe
Reamer
Point
down
Flare nut
Copper
tube
Bar
Copper pipe
Clamp handle Red arrow
Cone
Yoke
Handle
Bar
"A"
Slanted
Inside is shiny with no scratches
Smooth
Even length
Damanged
surface Cracked Uneven thickness
Incorrect Flares
1.
2A.2B.
3.
4.
4. Carefully inspect the flared pipe end.
• Compare the geometry with the figure to the right and dimensions
as detailed in Figure 16.
• If the flare is defective, cut it off and re-do procedure.
• If flare looks good, use dry nitrogen to blow clean the pipe.
90° 2
45°
2
A
R=0.4~0.8
Figure 16: Dimensions of the Flare
Pipe “A” in Figure 17 Thickness
Vapor (in. O.D.) Liquid (in. O.D.) Vapor (in.) Liquid (in.) Vapor (in.) Liquid (in.)
1/2 1/4 1/8 1/16 1/8 1/8
5/8 3/8 1/8 1/16 1/16 1/8
Table 4: Flared Connection Dimensions
Piping Preparation
1. Do not use kinked pipe caused by excessive bending in one
specific area on its length.
2. Braze the pipes to the service valve pipe stub of the outdoor unit.
When selecting are ttings, always use a 45° tting rated for use with
high pressure refrigerant R410A. Selected ttings must also
comply with local, state, or federal standards.
Figure 17: Creating a Flare Fitting
Single Zone Pipe Connections
WARNING