LG LS090HEV1 Installation and operation manual

SINGLE ZONE MEGA WALL MOUNTED
ENGINEERING MANUAL
3/4, 1, 1-1/2, and 2 Tons
Mega Inverter Models:
LS090HEV1
LS120HEV1
LS180HEV1
LS240HEV1
3/4 and 1 Tons
Mega 115V Models:
LS090HXV
LS120HXV

For continual product development, LG Electronics U.S.A., Inc., reserves the right to change specifications without notice.
© 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.
A summary list of safety precautions is on page 4.
For more technical materials such as submittals, catalogs, installation,
owner’s, and service manuals, visit www.lghvac.com.

Due to our policy of continuous product innovation, some specications may change without notication.
© LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG ” is a registered trademark of LG Corp. 3
Introduction
About LG Electronics
LG Electronics is a global leader and technology innovator in
consumer electronics, mobile communications, and home
appliances. LG Electronics comprises five business units—Home
Entertainment, Mobile Communications, Air Conditioning, Business
Solutions, and Home Appliance. LG is one of the world’s leading
producers of flat panel televisions, audio and video products, mobile
handsets, air conditioners, and washing machines. LG’s commercial
air conditioning business unit was established in 1968 and has built
its lineup of residential and commercial products to include VRF,
Multi F, duct-free split systems, packaged terminal air conditioners
(PTACs), and room air conditioners. In 2011, the air conditioning and
energy solutions business unit grew to include LED lighting and solar
products. For more information, visit www.lg.com.
Duct-Free Split Systems
LG HVAC systems offer a range of solutions that are cost efficient,
quiet and attractive. Duct-Free Split systems are “split” into indoor
and outdoor units, and provide a smart alternative to both central
HVAC and window-mounted air conditioners. These inverter heat
pump systems are available in a variety of configurations to suit dif-
ferent cooling and heating situations. Installation by a qualified HVAC
contractor is safe and easy – little to no duct work or sheet metal is
required.
Inverter Systems
LG Single Zone Mega Inverter and Mega 115V Wall Mounted air-
source systems offer the opportunity to minimize ductwork in the
same configuration. The system offers zoning without the need for
zone damper systems. The LG Single Zone Mega Inverter Wall
Mount system’s advanced controls provide exceptional building
dehumidification and temperature control, and can rapidly adapt sys-
tem operating parameters to the ever changing building load. The LG
Single Zone Mega Inverter Wall Mounted system is easy to design,
install, and maintain. The modular design allows occupants to control
their environmental condition, providing individualized control of the
set-point temperature and allowing occupants to condition only the
occupied zones.
Quality Commitment
LG is committed to the success of Duct-Free Split projects. We
provide industry leading technical support during installation and
commissioning. LG offers a variety of classes designed for installers
and servicers to ensure that every system installation is completed
successfully.
Classes are conducted at LG’s training centers and in field locations
at various times throughout the year and upon special request.

Due to our policy of continuous product innovation, some specications may change without notication.
© LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG ” is a registered trademark of LG Corp.
4
Single Zone Mega Wall Mounted Engineering Manual
TABLE OF CONTENTS
INTRODUCTION.....................................................................................5
ARCHITECTURAL APPEAL .................................................................. 6
PRODUCT FEATURES AND BENEFITS ...............................................8
UNIT NOMENCLATURE.........................................................................9
General Data ................................................................................... 10-12
Electrical Data...................................................................................... 13
Functions, Controls, and Options...................................................... 14
Outdoor Unit Dimensions................................................................... 15
LSU090HEV1, LSU120HEV1............................................................ 15
LSU180HEV1 .................................................................................... 16
LSU240HEV1 .................................................................................... 17
LSU090HXV1, LSU120HXV1............................................................ 18
Indoor Unit Dimensions...................................................................... 19
LSN090HEV1 .................................................................................... 19
LSN120HEV1 .................................................................................... 20
LSN180HEV1, LSN240HEV1............................................................ 21
LSN090HXV, LSN120HXV ................................................................ 22
ACOUSTIC DATA .................................................................................23
Refrigerant Flow Diagrams................................................................. 25
LSN/LSU90-180HEV1....................................................................... 25
LSN180HEV/LSU180HEV................................................................. 26
LSN240HEV/LSU240HEV................................................................. 27
LSN090HXV/LSU090HXV................................................................. 28
Wiring Diagram.................................................................................... 29
LSN090HEV1 .................................................................................... 29
LSN120HEV1 .................................................................................... 30
LSN180HEV1, LSN240HEV1 ........................................................... 31
LSN090-120HXV............................................................................... 32
LSU090HEV1, LSU120HEV1............................................................ 33
LSU180HEV1 ................................................................................... 34
LSU240HEV1 ................................................................................... 35
LSN090-120HXV............................................................................... 36
Accessories ......................................................................................... 37
PERFORMANCE DATA........................................................................ 39
Cooling Capacity ............................................................................... 40
Heating Capacity ............................................................................... 43
Equipment Selection Procedure ........................................................ 49
LS090~240HEV1............................................................................... 50
LS090HXV/LS120HXV...................................................................... 51
Building Ventilation Design Guide................................................ 52-53
Placement Considerations ............................................................ 54-56
REFRIGERANT PIPING DESIGN & LAYOUT
BEST PRACTICES ...............................................................................57
Refrigerant Piping Design .................................................................. 57
Design Guideline Summary............................................................... 58
Selecting Field-Supplied Copper Tubing ........................................... 58
Installation & Layout Best Practices ................................................. 60
Refrigerant Piping System Layout..................................................... 60
Piping Connection ............................................................................. 62
ELECTRICAL CONNECTIONS ............................................................64
Mechanical Specications.................................................................. 66
Acronyms............................................................................................. 67
TABLE OF SYMBOLS
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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.
DANGER
CAUTION

INTRODUCTION
“Architectural Appeal” on page 6

6|INTRODUCTION
Single Zone Mega Wall Mounted Engineering Manual
Due to our policy of continuous product innovation, some specications may change without notication.
© LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG ” is a registered trademark of LG Corp.
Benefits of Single Zone
Mega Inverter Wall Mounted
• Inverter technology
• Mega Inverter (HEV1) is available in 9,000,
12,000, 18,000, and 24,000 Btu/h capacities;
Mega 115V (HXV) is available in 9,000 and
12,000 Btu/h capacities
• All-season use - heat pump models for both
cooling and heating capabilities
• Operating ranges for Mega Inverter (HEV1)
and Mega 115V (HXV) outdoor units is 14°F to
118°F (DB) for cooling; 14°F to 65°F (WB) for
heating
• Operating range for all indoor units of 53°F to
75°F (WB) for cooling; 60°F to 86°F (DB) for
heating
• Quiet operation inside and outside
• Duct-free split system
Convergence of Technological Innovation with Flexibility and Style
Single Zone Mega
Wall Mounted
Choosing an LG Single-Zone Mega Wall-
Mounted product provides a system de-
signer an edge to engineer a system with
individual control, and design flexibility
with advanced controls.
These single-zone systems are available
in a nominal capacity range of 3/4 to 2
tons. These are best suited for applica-
tions with zones that require heating or
cooling, such as residential, and small
business office buildings. Single-Zone
Mega Wall-Mounted outdoor and indoor
units are available in 208–230V/60Hz/1Ph
(HEV1) and 115V/60Hz/1Ph (HXV).
Adaptable and Flexible
Single-zone wall-mounted duct-free split
systems allow cooling or heating for the
entire residence or just a single room with-
out the need for invasive ductwork. There
is minimal renovation needed.
Long refrigerant piping lengths allow for
extra design flexibility in indoor unit instal-
lation.
These units may be used for a number of
residential or commercial environments
such as:
• Older homes
• New home construction
• Office buildings
• Restaurants
• Hospitals / Medical facilities
• Schools
• Nursing homes
• Retail establishments
• Houses of worship
Inverter Technology
Inverter variable-speed duct-free split
systems are measurably quieter and
consume less energy than conventional
air conditioners. The inverter compressor
ramps up or down to match the required
room capacity and maintain the comfort
level. When the selected temperature is
reached, the inverter compressor oper-
ates at low speed to maintain that comfort
level, thereby using less energy.
ARCHITECTURAL APPEAL

“Product Features and Benefits” on page 8
“Unit Nomenclature” on page 9
“General Data” on page 10
“Electrical Data” on page 13
“Outdoor Unit Dimensions” on page 15
“Indoor Unit Dimensions” on page 19
“Acoustic Data” on page 23
“Refrigerant Flow Diagrams” on page 25
“Wiring Diagrams—Indoor Units” on page 29
“Wiring Diagrams—Outdoor Units” on page 33
“Accessories - LG Monitoring View Diagnostic Software”
on page 37
PRODUCT DATA

8|PRODUCT DATA
Single Zone Mega Wall Mounted Engineering Manual
Due to our policy of continuous product innovation, some specications may change without notication.
© LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG ” is a registered trademark of LG Corp.
Single Zone Mega Wall
Mounted
Single zone systems are equipped with
inverter components that offer superior
load matching and long piping installation.
These products work for optimizing power
consumption in residential and small office
buildings. Utilizing multiple indoor wall
mounted units each with custom tempera-
ture controls allow for precise temperature
settings in each zone of the building. Single
zone systems allow flexibility in interior
design and complement any decor.
Low Sound Levels
When outdoor units run at full load, they
have a quiet operating sound level. To pro-
mote a quiet, comfortable environment, the
LG single zone system indoor units operate
at sound levels as low as 23 dB(A) (HXV
units; 19dB(A) in Sleep mode) and outdoor
units as low as 47 dB(A) at full load. All
rotating components are soft-started by the
controller using digitally controlled inverters,
which reduce undesirable noise caused by
fans and compressors cycling on and off.
Comfort Control at Its
Best
Unlike traditional air conditioning control
systems, which use thermostatic controls to
maintain room temperatures, LG single zone
inverter controls continuously vary the indoor
unit fan speed and refrigerant flow.
LG single zone one-to-one systems continu-
ously measure the room temperatures and
adjust system operations accordingly to
maintain set temperature.
The outdoor unit responds by varying the
compressor speed and outdoor fan motors
as needed to maintain system operating
pressure. As a result, single zone systems
deliver precise space temperature control.
Inverter Driven
The single rotary (9k/12k Btu/h systems)
and twin-rotary (18k/24k Btu/h systems)
compressor is optimized to maximize
compressor efficiency, which reduces power
consumption and monthly utility bills. This
latest inverter technology allows single zone
system outdoor units to vary the compressor
motor shaft speed to deliver an appropriate
amount of cooling to the indoor unit. Precise
refrigerant volume delivery translates into
long periods with coil surface temperatures
below dew point and minimizes compressor
and fan component run time, which may lead
to lower utility usage.
Simplified Installation
Cooling and heating applications that use
single zone systems simplify and reduce the
mechanical and control system design time.
The designer no longer has to be concerned
with interconnecting chilled and condenser
water piping, air-distribution duct systems,
matching and selecting chillers, towers,
pumps, coils, fans, air handlers, or Variable
Air Volume (VAV) boxes.
Operating Range
Single zone systems have a nominal capac-
ity range of 3/4 to 2 tons (depending on
outdoor/indoor units).
Outdoor unit operating ranges for both Mega
Inverter (HEV1) and Mega 115V (HXV)
single zone systems:
Cooling: 14°F DB to 118°F DB
Heating: 14°F WB to 65°F WB
Compact Size
Single zone outdoor units have the following
footprints.
LSU090HEV1, LSU120HEV1
(WxHxD (in.)): 28-1/4 x 19-1/2 x 9-1/16
LSU180HEV1
(WxHxD (in.)): 30-5/16 x 21-1/2 x 11-5/16
LSU240HEV1
(WxHxD (in.)): 34-1/4 x 25-13/16 x 12-19/32
LSU090HXV, LSU120HXV
(WxHxD (in.)): 28-1/4 x 19-1/32 x 9-1/16
Fin Design with Gold-
Fin™ Coating
All single zone outdoor units are provided
with large surface coils made of copper
tubes with louvered aluminum fins designed
to maximize unit operating efficiency over a
wide range of ambient conditions.
Standard from the factory, every single zone
outdoor unit coil fin surface is coated with
LG’s exclusive GoldFin™ anti-corrosive
coating designed to prevent natural surface
corrosion of the aluminum fins. This main-
tains heat transfer properties of the coil for
an extended time.
A hydrophilic coating is applied to the
outdoor unit coil fin surface over the GoldFin
coating. This coating enhances the develop-
ment of heavier water droplets gathering on
the fin surface. As a result, the droplets roll
off the fin surfaces, delaying the point when
frost forms on the coil surface during heat-
ing operation. This coating also makes it
possible to easily clean the outdoor unit coil
using a mild soap.
Other Features
• Inverter variable speed compressor
• Jet Cool/Jet Heat
• Dehumidifying mode
• Chaos Wind
• Auto restart
• Auto operation
• Self-cleaning indoor coil
• Condensate sensor connection
• Smaller footprint
• Precision load matching
• Meets AHRI 210/240
PRODUCT FEATURES AND BENEFITS

PRODUCT DATA | 9
Product Data
Due to our policy of continuous product innovation, some specications may change without notication.
© LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG ” is a registered trademark of LG Corp.
UNIT NOMENCLATURE
Single Zone Wall Mount Indoor and Outdoor Units
LS N090 HEV 1
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
Generation or Revision
1 = First
2 = Second
3 = Third
4 = Fourth
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
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

10 |PRODUCT DATA
Single Zone Mega Wall Mounted Engineering Manual
Due to our policy of continuous product innovation, some specications may change without notication.
© LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG ” is a registered trademark of LG Corp.
GENERAL DATA
Mega Pairing Table
Outdoor Unit Model Indoor Unit Model Controller
Mega Inverter
LSU090HEV1
LSU120HEV1
LSN090HEV1
LSN120HEV1
AKB73835318
LSU180HEV1 LSN180HEV1 AKB73835318
LSU240HEV1 LSN240HEV1 AKB73835318
Mega 115V
LSU090HXV
LSU120HXV
LSN090HXV
LSN120HXV
AKB73456121
Table 1: Single Zone Mega Inverter and Mega 115V Pairing Table
The following table shows the available outdoor and indoor unit, along with the factory provided controller.

PRODUCT DATA | 11
Product Data
Due to our policy of continuous product innovation, some specications may change without notication.
© LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG ” is a registered trademark of LG Corp.
Table 2: Single Zone Mega Inverter System Specications.
GENERAL DATA
Mega Inverter Specications
System Model Number (IDU/ODU) LS090HEV1 (LSN090HEV1/
LSU090HEV1)
LS120HEV1
(LSN120HEV1/
LSU120HEV1)
LS180HEV1
(LSN180HEV1/
LSU180HEV1)
LS240HEV1
(LSN240HEV1/
LSU240HEV1)
Cooling Capacity (Min/Rated/Max) (Btu/h) 3,070 ~ 8,500 ~ 9,500 3,070 ~ 12,000 ~ 13,780 3,685 ~ 17,000 ~ 18,493 3,685 ~ 22,000 ~ 24,000
Cooling Power Input1(kW) 0.68 1.14 1.55 2.045
Heating Capacity (Min/Rated/Max) (Btu/h) 3,070 ~ 9,000 ~ 10,500 3,070 ~ 12,000 ~ 13,780 3,685 ~ 19,000 ~ 22,997 3,685 ~ 22,000 ~ 24,226
Heating Power Input1(kW) 0.78 0.98 1.59 1.935
COP 11.54 12.24 11.95 11.37
Max. Heating Capacity (Btu/h)
Outdoor 17°F (WB)/Indoor 70°F (DB) 5,570 (62%) 7,620 (63%) 15,580 (82%) 18,040 (82%)
EER 12.5 10.52 10.97 10.76
SEER 19.0 17.0 18.0 17.0
HSPF 9.0 9.2 9.0 9.0
Power Supply (V/Hz/Ø) 208-230/60/1
Outdoor Unit Operating Range
Cooling (°F DB) 14 to 118
Heating (°F WB) 14 to 65
Indoor Unit Operating Range
Cooling (°F WB) 53 to 75
Heating (°F DB) 60 to 86
Indoor Temperature Setting Range
Cooling (°F) 64 to 86
Heating (°F) 60 to 86
Unit Data
Refrigerant Type2R410A
Refrigerant Control EEV
IDU Sound Pressure3dB(A) (H/M/L/Sleep) 39/33/25/19 39/33/25/19 42/40/35/29 45/40/35/29
ODU Sound Pressure3dB(A) 47 47 51 53
Unit Weight (lbs)
IDU (Net/Shipping) 17/20 23/28 28/30 28/32
ODU (Net/Shipping) 62/67 62/67 78/82 95/104
Power/Communication Cable4 (No. x AWG) 4 x 18
Compressor
Compressor Type (Qty) Single Rotary (1) Single Rotary (1) Twin Rotary (1) Twin Rotary (1)
Fan
IDU Type (Qty) Cross Flow (1)
ODU Type (Qty) Propeller (1)
Motor/Drive Brushless Digital Controlled/Direct
Airflow Rate
IDU Max/H/M/L (CFM) 318/276/226/177 424/353/272/212 629/512/441/353 689/600/494/388
ODU Max (CFM) 953 953 1,342 1,766
Piping
Liquid Line (in, OD) 1/4 1/4 1/4 1/4
Vapor Line (in, OD) 3/8 3/8 1/2 5/8
Condensation Line (OD, ID) 27/32, 5/8 27/32, 5/8 27/32, 5/8 27/32, 5/8
Additional Refrigerant Charge (oz/ft) 0.22 0.22 0.33 0.33
Pipe Length5(Minimum/Maximum)(ft) 9.8/49.2 9.8/49.2 9.8/65.6 9.8/65.6
Piping Length5(no add’l refrigerant, ft) 24.6 24.6 24.6 24.6
Max Elevation Difference (ft) 22.9 22.9 32.8 32.8
EEV: Electronic Expansion Valve IDU: Indoor Unit ODU: Outdoor Unit
1Power Input is rated at high speed.
2Take 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.
3Sound Pressure levels are tested in an anechoic chamber under ISO Standard 3745.
4All power wiring/communication cables are field supplied and are to be minimum 18 AWG, 4-conductor,
stranded, shielded and must comply with applicable local and national codes.
5Piping lengths are equivalent.
This unit comes with a dry helium charge.
This data is rated 0 ft above sea level with 24.6 of refrigerant line per indoor unit and a 0 ft level
difference outdoor and indoor units.
Cooling capacity rating obtained with air entering the indoor unit 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 59ºF wet
bulb (WB) and outdoor ambient conditions of 47ºF dry bulb (DB) and 43ºF wet bulb (WB).

12 |PRODUCT DATA
Single Zone Mega Wall Mounted Engineering Manual
Due to our policy of continuous product innovation, some specications may change without notication.
© LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG ” is a registered trademark of LG Corp.
GENERAL DATA
Mega 115V Specications
Table 3: Single Zone Mega 115V System Specications.
System Model Number (IDU/ODU) LS090HXV (LSN090HXV/LSU090HXV) LS120HXV (LSN120HXV/LSU120HXV)
Cooling Capacity (Min/Rated/Max) (Btu/h) 1,023 ~ 8,500 ~ 13,785 1,023 ~ 12,000 ~ 13,785
Cooling Power Input1(kW) 0.71 1.14
Heating Capacity (Min/Rated/Max) (Btu/h) 1,023 ~ 10,900 ~ 22,178 1,023 ~ 13,000 ~ 22,178
Heating Power Input1(kW) 0.88 1.09
COP 3.63 3.50
EER 12.01 10.5
SEER 17.0 17.0
HSPF 9.0 9.0
Power Supply (V/Hz/Ø) 115/60/1
Outdoor Unit Operating Range
Cooling (°F DB) 14 to 118
Heating (°F WB) 14 to 65
Indoor Unit Operating Range
Cooling (°F WB) 53 to 75
Heating (°F DB) 60 to 86
Indoor Temperature Setting Range
Cooling (°F) 65 to 86
Heating (°F) 60 to 86
Unit Data
Refrigerant Type2R410A
Refrigerant Control EEV
IDU Sound Pressure3dB(A) (H/M/L/Sleep) 39/33/23/19 39/33/23/19
ODU Sound Pressure3dB(A) 47 47
Unit Weight (lbs)
IDU (Net/Shipping) 23/26 23/26
ODU (Net/Shipping) 67/79 67/79
Power/Communication Cable4 (No. x AWG) 4 x 18
Compressor
Compressor Type (Qty) Single Rotary (1) Single Rotary (1)
Fan
IDU Type (Qty) Cross Flow (1)
ODU Type (Qty) Propeller (1)
Motor/Drive Brushless Digitally Controlled/Direct
Airflow Rate
IDU Max/H/M/L (CFM) 335/272/212/124 335/272/212/124
ODU Max (CFM) 1,000 1,000
Piping
Liquid Line (in, OD) 1/4 1/4
Vapor Line (in, OD) 3/8 3/8
Condensation Line (OD, ID) 27/32, 5/8 27/32, 5/8
Additional Refrigerant Charge (oz/ft) 0.22 0.22
Pipe Length5(Minimum/Maximum)(ft) 6.6 / 49.2 6.6 / 49.2
Piping Length5(no add’l refrigerant, ft) 24.6 24.6
Max Elevation Difference (ft) 23 23
EEV: Electronic Expansion Valve IDU: Indoor Unit ODU: Outdoor Unit
1Power Input is rated at high speed.
2Take 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.
3Sound Pressure levels are tested in an anechoic chamber under ISO Standard 3745.
4All power wiring/communication cables are field supplied and are to be minimum 18 AWG, 4-conductor,
stranded, shielded and must comply with applicable local and national codes.
5Piping lengths are equivalent.
This unit comes with a dry helium charge.
This data is rated 0 ft above sea level with 24.6 of refrigerant line per indoor unit and a 0 ft level
difference outdoor and indoor units.
Cooling capacity rating obtained with air entering the indoor unit 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 59ºF wet
bulb (WB) and outdoor ambient conditions of 47ºF dry bulb (DB) and 43ºF wet bulb (WB).

PRODUCT DATA | 13
Product Data
Due to our policy of continuous product innovation, some specications may change without notication.
© LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG ” is a registered trademark of LG Corp.
Model Number Nominal Tons Compressor
Qty
Compressor(A)
Cool/Heat Fan Qty ODU Fan (A) IDU Fan (A) MCA(A) MOP(A)
LS090HEV1 3/4 1 7.0/7.0 1 0.5 0.5 10 15
LS120HEV1 1 1 7.0/7.0 1 0.5 0.5 10 15
LS180HEV1 1-1/2 1 8.81/8.61 1 0.4 0.4 12 20
LS240HEV1 2 1 10.72/10.28 1 0.4 0.4 15 20
Mega Inverter and Mega 115V Outdoor Units
ELECTRICAL DATA
Table 4: 208-230V, 60Hz, 1-Phase Single-Zone Mega Inverter System Electrical Data Table.
Table 5: 115V, 60Hz, 1-Phase Single Zone Single-Zone Mega 115V System Electrical Data Table.
Model Number Nominal Tons Compressor
Qty
Compressor(A)
Cool/Heat Fan Qty ODU Fan(A) IDU Fan (A) MCA(A) MOP(A)
LS090HXV 3/4 1 10/10 1 0.4 0.5 13.5 20
LS120HXV 1 1 10/10 1 0.4 0.5 13.5 20
Voltage tolerance is ±10%.
Maximum allowable voltage unbalance is 2%.
MCA = Minimum Circuit Ampacity.
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.
Voltage tolerance is ±10%.
Maximum allowable voltage unbalance is 2%.
MCA = Minimum Circuit Ampacity.
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.

14 |PRODUCT DATA
Single Zone Mega Wall Mounted Engineering Manual
Due to our policy of continuous product innovation, some specications may change without notication.
© LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG ” is a registered trademark of LG Corp.
FUNCTIONS, CONTROLS, OPTIONS
Table 6: Indoor Units—Functions, Controls and Options.
Indoor Unit Type LS090-120-180-240HEV1 LS090-120HXV
Airow
Air supply outlet 1 1
Airflow direction (left/right) Manual Auto
Airflow direction (up/down) Auto Auto
Auto swing (left/right) X√
Auto swing (up/down) √ √
Airflow steps (fan/cool/heat) 4 / 4 / 4 6 / 6 / 6
Auto swing √ √
Auto wind √ √
Jet-cool/heat √ / √ √ / √
Swirl wind X X
One touch soft air √X
Air Purifying
Washable anti-fungal1√ √
Deodorizing filter X X
Plasma2X X
Allergy free filter X X
3M Micro Protection filter2X X
Functions
Drain pump X X
E.S.P. control X X
Electric heater X X
High ceiling X X
Defrost √ √
Low ambient √ √
Hot start √ √
Self diagnostics √ √
Soft dry (dehumidification) √ √
Auto changeover √ √
Auto clean (coil dry) √ √
Auto restart √ √
Child lock X X
Forced operation √ √
Sleep mode √ √
Timer (24hr on/off) √ √
Weekly timer X X
Two thermistor control X X
Controllers
Wireless Remote Controller √ √
Simple Controller with Mode Selection X o
Simple Controller without Mode Selection X o
LG Programmable Thermostat X o
Dry contact X o
Central control (LGAP) X X
PI 485 X X
Special Function Kit
Zone control X X
CTIE X X
Electro thermostat X X
Wi-Fi Module (Option) X X
Water level sensor connection (for optional AG-9300-LG) o o
Wind baffle kit X X
Other
Thermistor X X
1Primary washable filters.
2Secondary filters.
√ = Standard feature
o = Optional accessory (must be purchased separately)
X = Not available

PRODUCT DATA | 15
Product Data
Due to our policy of continuous product innovation, some specications may change without notication.
© LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG ” is a registered trademark of LG Corp.
OUTDOOR UNIT DIMENSIONS
LSU090HEV1, LSU120HEV1
5
4
2
3
18-1/4
28-1/4
28-1/4
Ø17-3/8
2-1/4
4-5/8
10-9/16
18-3/4
9-5/16
8-5/8
19-1/2
2-3/16
2-1/4
1/2
10-1/16
9-1/16
10-11/16
1
Center of gravity
Unit: Inch
Discharge Air Grille
Gas Pipe Connection Port
Liquid Pipe Connection Port
Control Box
Ground Terminal

16 |PRODUCT DATA
Single Zone Mega Wall Mounted Engineering Manual
Due to our policy of continuous product innovation, some specications may change without notication.
© LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG ” is a registered trademark of LG Corp.
LSU180HEV1
OUTDOOR UNIT DIMENSIONS
30-5/16
22 4-3/16
13-15/16
6-1/8
2-1/8
10-15/16
1
20-15/16
21-1/2
10-1/2
8 -1/8
4
3
2
5
11-5/16
Item No. Part Name
2-13/16
Ø
18-5/16
Unit: Inch
Center of Gravity
9-3/8
20
5-3/4
Discharge Air Grille
Gas Pipe Connection Port
Liquid Pipe Connection Port
Control Box
Ground Terminal

PRODUCT DATA | 17
Product Data
Due to our policy of continuous product innovation, some specications may change without notication.
© LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG ” is a registered trademark of LG Corp.
OUTDOOR UNIT DIMENSIONS
LSU240HEV1
1
34-1/4
21-1/2 6-5/16
14 -3/16
2-3/16
11-15/16
Ø 20-15/16
25-13/16 24-13/16
12-5/8
3
3-1/8
12-5/8
Item No. Part Name
Unit: Inch
Center of Gravity
10-7/16
21-1/8
5-13/16
Discharge Air Grille
Gas Pipe Connection Port
Liquid Pipe Connection Port
Control Box
Ground Terminal

18 |PRODUCT DATA
Single Zone Mega Wall Mounted Engineering Manual
Due to our policy of continuous product innovation, some specications may change without notication.
© LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG ” is a registered trademark of LG Corp.
OUTDOOR UNIT DIMENSIONS
LSU090HXV, LSU120HXV
5
4
2
3
28-1/4
Ø17-3/8
10-9/16
9-5/16
19-1/16
2-3/16
2-1/4
7/16
1
Unit: Inch
.
18-1/4
28-1/4
2-1/4
10 -1/16
9-1/16
10-11/16
Discharge Air Grille
Gas Pipe Connection Port
Liquid Pipe Connection Port
Control Box
Ground Terminal

PRODUCT DATA | 19
Product Data
Due to our policy of continuous product innovation, some specications may change without notication.
© LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG ” is a registered trademark of LG Corp.
INDOOR UNIT DIMENSIONS
LSN090HEV1
Ø 2-9/16
Ø 2-9/16
Right rear piping
Left rear piping
Installation Plate
Place a level on raised tab
Unit Outline
7- 9/16
14-7/8
29-3/4
7-1/4
10 -7/16
5
3
4
1
2
Unit: Inch
14-7/8
7- 9/16
Item No. Part Name
2-15/16
5-11/16
Return Air Grille
Knockout Hole for Piping and Cables
1-3/4
2-3/16
2
2-3/8
5-5/8
2
2-1/8
2-3/8
2
1-3/4

20 |PRODUCT DATA
Single Zone Mega Wall Mounted Engineering Manual
Due to our policy of continuous product innovation, some specications may change without notication.
© LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG ” is a registered trademark of LG Corp.
INDOOR UNIT DIMENSIONS
LSN120HEV1
5
Ø 2-9/16
Right Rear
Piping
Left Rear
Piping Installation Plate
Place a level on raised tab
4 -13/16
9-5/8
7
5-1/4
16 -1/4 18-7/8
34-13/16 8-1/4
11 -1/4
Unit Outline
Ø 2-9/16
3
2
4
1
Unit: Inch
Item No. Part Name
Return Air Grille
1-3/4
2-3/16
2
2-3/8
1-3/4
2
Knockout Hole for Piping & Cable
2
2-5/16
6-5/16