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30,000 BTU Single Zone Mini-Split System

38,898 BTU Heating Capacity Smart ThinQ® Wi-Fi Extended Piping
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Product Information
Brand: LG
Model: LS303HLV
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
Wireless Remote Control(s) Included: Included
Wired Remote Control(s) Included: No
No. of Remote Controls: 1
BTU Class: 30,000 BTU
Heating Capacity: 38,898 BTU
Electrical Data
Power Source V / Hz / Ø: (208/230/60/1)
Rated Amps: 14.85 Amps
Energy Star Certified: No
EER (Energy Efficiency Rating): 10
SEER (Seasonal Energy Efficiency Rating): 19
COP (Coefficient of Performance): 10.32
HSPF (Heat Seasonal Performance Factor): 10
Piping Connections
Power and Communication Cable - No.: 4
Power and Communication Cable - AWG: 18
Drain Line Outer Diameter: 27/32 Inch
Drain Line Inner Diameter: 5/8 Inch
Refrigeration System
Refrigerant Type: R-410A
Compressor Type: Twin Rotary
Refrigerant Control: EEV
Piping Length (No Additional Refrigerant): 24.6 Ft.
Max. Height Diff. btwn. Indoor and Outdoor Units: 98.4 Ft.
Sleep Mode: Yes
No. of Fan Speeds: 4
Technical Details
ADA Compliant: No
Voltage: 230/208 Volts
Dimensions & Weights
Net Weight: 165 Lbs.
Shipping Weight: 179 Lbs.

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From the Manufacturer

Home Comfort Solutions by LG allow you to cool or heat your entire home or just a single room without the need for invasive ductwork. There's no tearing down of walls or altering your home's appearance. LG Duct-Free Split systems are simple to have installed. In most cases, a professional contractor gets the job done in less than a day.

Single Zone Extended Pipe systems include advanced technology for cost-effective, energy efficient operation and improved piping capability to allow longer pipe length and higher elevation differences. These systems are available in heat pump configurations with 24,000, 30,000, and 33,000 Btu/h capacities. Remote control via Wi Fi and smartphone app.

How LG Duct-Free Split Systems Work
LG Duct-Free Split air-conditioning and heating systems consist of three basic components: an inverter-driven outdoor unit, a stylish and quiet indoor unit that delivers conditioned air to the room, and compact conduit for refrigerant lines and wiring that connects the units. This design allows for energy conservation by targeting only those areas that need cooling or heating, a cost-effective feature when only certain portions of a building are being used.

LG Duct-Free Split Systems Can Be Used Virtually Anywhere
LG delivers advanced climate control and operating efficiency to a wide range of residential and light commercial projects, from a stuffy bedroom to a home addition where cooler temperatures are required.
  • Specifications
  • Features
  • Reviews
  • Warranty Info


Rated Cooling Capacity:  
30,000 BTU
Cooling Capacity Range:  
3,070 - 34,000 BTU
Rated Heating Capacity:  
32,000 BTU
Heating Capacity Range:  
3,070 - 38,898 BTU
Max Heating Capacity at 17°:  
32,490 BTU
Max Heating Capacity at 5°F:  
28,080 BTU
Max Heating Capacity at -4°F:  
24,390 BTU
19.0, 10.0
IDU Voltage (V, Ø, Hz):  
ODU Voltage (V, Ø, Hz):  
Cooling Power Input:  
3.0 kW
Heating Power Input:  
3.10 kW
19.0, 30
Recommended Fuse:  
Power/Communication Wiring:  
4 X 18
Rated Amps:  
Operating Range
Heating Operation Range:  
-4 - 65°F
Cooling Operation Range:  
14 - 118°F
Optional Wind Baffle:  
IDU Operation Range Cooling:  
53 - 75°F
IDU Operation Range Heating:  
60 - 86°F
Setpoint Range Cooling:  
64 - 86°F
Setpoint Range Heating:  
60 - 86°F
IDU Dimensions (WxHxD):  
46 7/8" x 13 5/8" x 10 7/16"
ODU Dimensions (WxHxD):  
34 1/4" x 31 1/2" x 12 19/32"
IDU Weight (Net/Shipping):  
40/46 Lbs.
ODU Weight (Net/Shipping):  
125/133 Lbs.
Unit Data
Airflow (Max/H/M/L):  
953/848/706/530 CFM
5.9 Pts./Hr.
Compressor Type:  
Twin Rotary
Sound Pressure
Indoor (H/M/L/SL):  
49/44/40/37 dB(A)
Outdoor Max:  
55 dB(A)
Liquid Line:  
Suction Line:  
Pipe Length (Min/Max):  
9.8/164 Ft.
Max Pipe Elevation:  
98.4 Ft.
Precharge Pipe Length:  
24.6 Ft.
Additional Refrigerant:  
0.38 Oz/Ft.
Drain (OD, ID):  
27/32", 5/8"


Smart ThinQ® Wi-Fi
  • Whenever, wherever and no matter how many air conditioners you have, the LG Smart AC module and LG Smart ThinQ® let you easily access and control your air conditioner from your mobile phone.
Jet Cool/Jet Heat Mode
  • Operates the unit at a high speed for up to 30 minutes to quickly cool or heat a room.
Swirl Wind/Chaos Wind
  • Allows for customized louver and fan speed operation to create a stronger, wider airflow for reduced temperature stratification and to provide more natural air circulation.
Auto Operation
  • Adjusts the temperature and fan speed automatically to match the user's preference from three levels of comfort.
Dehumidifying Mode
  • Uses sensors in the indoor unit to accurately measure room temperature and control humidity by adjusting the set point and fan speed.
Defrost Control
  • Removes frost from the outdoor coil when ambient outdoor temperatures are low and simultaneously shuts down the indoor fan to prevent cold air from being blown into the controlled space.
Auto Sleep Mode
  • Automatically increases the temperature setting 2˚F twice in 30 minute increments. The indoor unit shuts off when the timer setting is reached.
Auto Restart
  • Automatically restarts the system after a power failure
Gold Fin
  • Gold Fin™ Coating is an anticorrosion coating to help protect your system from corrosive elements, allowing the coil to maintain excellent heat transfer properties for an extended time.

LG LS303HLV 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.