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17,000 BTU Mega Single Zone Wall-Mount Ductless Split System with 19,000 BTU Heat Pump, 17.0 SEER, 10.95 EER and Inverter Compressor (LSN180HEV Indoor / LSU180HEV Outdoor)

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Mega Standard Single Zone Inverter
LG's new line of heat pump duct-free split products. Systems are available in 9,000, 12,000, 18,000, and 24,000 Btu/h capacities.

The single-zone systems feature energy-saving Inverter (variable-speed compressor) technology and are controlled through a standard wireless remote.

Welcome To LG
LG Electronics USA Commercial Air Conditioning business is a leading player in the global air conditioning market, manufacturing both commercial and residential air conditioners and providing total sustainability and building management solutions. From consumer units to commercial air conditioning systems, LG provides a wide range of innovative products for heating, ventilating and air conditioning.

How To Choose A Room Air Conditioner
Compared to large capacity central units, room air conditioners have several advantages. The initial cost of a room air conditioning unit is significantly lower than the cost of central air. Because room air conditioners are designed for cooling small spaces, operating costs are reduced. And, room air conditioners can provide personalized temperature and humidity controls that central systems cannot.

Calculating Cooling Capacity
Cooling capacity is the critical factor in properly selecting a room air conditioner. Cooling capacity is measured in British Thermal Units (BTUs) and typical models will range in capacity from 5,000 BTUs to 28,500 BTUs.

Choosing an undersized unit will overwork the unit and it will not cool properly. Choosing an over-sized unit will cost more to buy and operate and it will not dehumidify properly.

We can help you to calculate capacity. Be prepared to provide specific information on:
  • Room Dimensions
  • A simple floor plan to show the location of doors and north-facing windows
  • The number of people it will serve
  • Sources of heat such as lamps, TV and appliances
  • An explanation of what's above the intended room
  • Your insulation provisions

Cooling Capacity by Room Size
Measure the length and width of the area to be cooled. Multiply the length by the width to determine square footage or square meters. Locate the room size in the chart below to select the appropriate BTUs. Then use the product information to select the unit for your room. When cooling rooms with uninsulated ceilings, great rooms, or southern or western sun exposures - step up to the next BTU size.

Room SizeBTU
Sq. Ft.Sq. m
15014 up to 5,000
16515 5,200

Air Conditioner Tips
Air flow - Keep air filters clean. Do not block air flow areas.

Roomside view - J-models feature concealed power cord storage, this eliminates excessive cord exposure when receptacle is located close to unit.

Wall Opening For RAB46/47/48 Cases
A finished opening of 26 1/8" x 15 3/4", clear of intrusions, is required. Keep clearance of 4" from side walls. Brick veneer or frame walls should have wood studding surrounding case to provide firm anchoring with screws. Case can be fastened directly to brick or block walls with screws sunk in lead expansion shields. NOTE: units should be caulked on all four sides of case to the building exterior to assure building integrity.
Energy Info
This air conditioner has an Energy Efficiency Rating of 10.95 and has an estimated yearly operating cost of $129.13.

Your operating costs will depend on your utility rates and use. The estimated yearly operating cost is based on the 2011 national average cost of $.1109 cents per kWh for electricity and an estimated number of operating hours of 750 hours.

For more information, visit
System Model
System Model: LS180HEV
Indoor Model: LSN180HEV
Outdoor Model: LSU180HEV
Capacity - Cooling: 17,000 BTU
Capacity - Heating: 19,000 BTU
EER: 10.95
SEER: 17.0
HSPF: 8.7
Air Circulation (H/M/L): 512/441/353 CFM
Fan Speeds: 3/4/3
Dehumidification: 3.39 Pts/Hr
Indoor dB(A): 42/40/35 dB(A)
Outdoor dB(A): 51 dB(A)
Warranty: 5 Years Parts, 7 Years Compressor
Rated Voltage Outdoor: 230/208-60-1
Rated Voltage Indoor: 230/208-60-1
Rated Amps - Cooling: 9.08 Amps
Rated Amps - Heating: 9.68 Amps
Power Input - Cooling: 1.55 kW
Power Input - Heating: 1.59 kW
Min. Circuit Ampacity (MCA): 12
Max. Overcurrent Protection (MOP): 20
Liquid Line (in, OD): 1/4"
Vapor Line (in, OD): 1/2"
Additional Refrigerant: 0.33 Oz./Ft.
Max. Pipe Length: 65.6 Ft.
Piping Length (No Additional Refrigerant): 24.6 Ft.
Max. Elevation: 32.8 Ft.
Operating Range
Cooling - Outdoor (°F DB): 64° - 118°F
Heating - Outdoor (°F DB): 23° - 75°F
Cooling - Indoor (°F DB): 64° - 90°F
Heating - Indoor (°F DB): 61° - 86°F
Unit Data
Refrigerant Type: R410A
Refrigerant Control: Capillary Tube
Refrigerant Charge: 2.34 Lbs.
Indoor Dimensions and Weights
Overall Width: 40 9/16"
Overall Depth: 9 13/16"
Overall Height: 12 13/16"
Net Weight: 28.0 Lbs.
Shipping Weight: 30.0 Lbs.
Outdoor Dimensions and Weights
Overall Width: 30 5/16"
Overall Depth: 13 29/32"
Overall Height: 21 1/2"
Net Weight: 72.0 Lbs.
Shipping Weight: 77.0 Lbs.
  • Features
  • Inverter (Variable speed compressor).
  • R-410A Refrigerant.
  • Gold Fin Anti-corrosion.
  • Self-cleaning indoor coil.
  • Cooling/Heating/Fan mode.
  • Jet cool.
  • Chaos Wind.
  • 2-Way Auto Swing.
  • Ultra quiet operation.
  • Sleep mode.
  • Dehumidifying mode.
  • Auto restart.
  • Auto Changeover.
  • 24-Hour on/off timer.
  • Condensate sensor connection.
  • Interior Unit Includes:
  • Wall unit.
  • Installation plate and hardware.
  • Remote control, batteries, holder and holder hardware.
  • Installation manual.
  • Exterior Unit Includes:
  • Exterior unit.
  • Exterior unit has sufficient refrigerant for charging indoor coil and a 25 ft. line set (line set not included).
  • Available at AJ Madison.
Info and Guides

Adobe Acrobat FileEngineering Manual

Adobe Acrobat FileSubmittal Sheet

You will need Adobe Acrobat Reader to view and print pdf files

Adobe Reader
Expired Rebates
Save Up To $575 On LG Kitchen and Laundry Appliances

Save Up To $575 Off

Get up to $575 cash back with mail-in rebate on select LG kitchen and laundry appliances.

How To Save:
•   Purchase any Dishwasher - Get $75 Off
•   Purchase any Range - Get $75 Off
•   Purchase any Refrigerator - Get $100 Off
•   Purchase any Wall Oven - Get $75 Off
•   Purchase any Washer - Get $50 Off

Bonus Savings:
•   Purchase any 3 (Dishwasher, Cooktop, OTR, Range, Refrigerator, Wall Oven) - Get $100 Bonus
•   Purchase any 4 (Dishwasher, Cooktop, OTR, Range, Refrigerator, Wall Oven) - Get $200 Bonus

Only one model per category qualifies. All purchases must be on one sales slip. Rebate form must be postmarked by February 28, 2015. It is the sole responsibility of the customer to download, complete and mail in the rebate form and all required documentations by the given postmark date.

AJ Madison Exclusive Rebate AJ Madison Exclusive Rebate
Download Download Rebate Form
Calendar Valid: 12/29/2014 - 01/31/2015

Available Rebates - May be Combined

Note: It is the sole responsibility of the customer to download and mail in the rebate form by the respective closing date. AJ Madison cannot be held responsible for non-compliance of the afore-mentioned.

Product Reviews
Warranty Info

Warranties on mini split air conditioners only include parts and do not include labor. The licensed HVAC Technician who installs your air conditioner should always provide you with a labor warranty (preferably for at least a full year to compliment the manufacturers' parts warranty).

AJ Madison will only finalize a Mini Split (Ductless Split System) purchase with an authorized HVAC Technician. AJ Madison recommends the installation of a mini-split system to be performed by a trained and qualified HVAC technician with the proper knowledge and background. A trained technician will be able to judge the best location for the air handling (evaporator) unit and also the correct size for the area the unit will heat and/or cool. For assistance with all your technical needs please contact our technical department at

Should you experience an issue during the installation or the initial startup of a unit please do not contact the manufacturer. You should have the technician that installed your system contact either AJ Madison or the manufacturer. We cannot accept any service or warranty calls from anyone but a licensed HVAC technician. We have a full technical support team available to help you throughout the installation process.

AJ Madison, Inc. cannot be held liable for improper installation and operation of any product purchased from our company. Should a warranty issue arise in which parts will need to be replaced, an installation receipt will be required along with your AJ Madison sales receipt. Failure to provide a receipt or invoice may result in the warranty not being honored.

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Quick Specs
Quick Specs


  • AC System Type : Mini Split
  • Component Type : System
  • Operation : Cooling with Heat Pump
  • No. of Rooms : 1
  • Min No. of Connectible Indoor Units : 1
  • Max No. of Connectible Indoor Units : 1
  • Indoor Unit Placement Type : Wall Mount
  • Wireless Remote Control(s) Included : Included
  • Wired Remote Control(s) Included : No
  • No. of Remote Controls : 1


  • BTU Class : 18,000 BTU
  • Heating Capacity : 19,000 BTU

Electrical Data

  • Running Current Cooling - Max. (Amps) : 9.08 Amps
  • Running Current Heating - Max (Amps) : 9.68 Amps
  • Power Input Cooling - Max. (Watts) : 1,550 Watts
  • Power Input Heating - Max. (Watts) : 1,590 Watts


  • Energy Star Certified : No
  • EER (Energy Efficiency Rating) : 10.95
  • SEER (Seasonal Energy Efficiency Rating) : 17
  • HSPF (Heat Seasonal Performance Factor) : 8.7
  • Airflow Rate Medium (CFM) : 512 CFM

Refrigeration System

  • Refrigerant Type : R-410A
  • Compressor Type : Inverter
  • Max. Line Length - Each : 65.6 Ft.

Technical Details

  • ADA Compliant : No
  • Voltage : 230/208 Volts

Warranty Terms

  • Indoor Unit Parts : 5 Years
  • Compressor : 7 Years

Dimensions & Weights

  • Net Weight : 100 Lbs.
  • Shipping Weight : 107 Lbs.
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