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Dealer

LG
LMU540HV
54,000 BTU Class Multi-System Ductless Split Outdoor Unit

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Product Information
Brand: LG
Model: LMU540HV
General
AC System Type: Mini Split
Component Type: Outdoor Unit
Operation: Cooling with Heat Pump
No. of Rooms: 8
Min No. of Connectible Indoor Units: 2
Max No. of Connectible Indoor Units: 8
Capacity
BTU Class: 54,000 BTU
Heating Capacity: 58,000 BTU
Min Connectable Capacity: 24,000 BTU
Max Connectable Capacity: 73,000 BTU
Electrical Data
Running Current Cooling - Min. (Amps): 4.8 Amps
Running Current Cooling - Rated (Amps): 24.5 Amps
Running Current Cooling - Max. (Amps): 21 Amps
Running Current Heating - Min. (Amps): 7.1 Amps
Running Current Heating - Rated (Amps): 25.7 Amps
Running Current Heating - Max (Amps): 21 Amps
Power Input Cooling - Min. (Watts): 1,000 Watts
Power Input Cooling - Rated (Watts): 5,100 Watts
Power Input Cooling - Max. (Watts): 5,100 Watts
Power Input Heating - Min. (Watts): 1,490 Watts
Power Input Heating - Rated (Watts): 5,400 Watts
Power Input Heating - Max. (Watts): 5,340 Watts
Performance
Compressor Noise Level - Cooling (dB): 54 dB
Compressor Noise Level - Heating (dB): 56 dB
Energy Star Certified: No
EER (Energy Efficiency Rating): 10.3
SEER (Seasonal Energy Efficiency Rating): 18.4
Piping Connections
Power and Communication Cable - No.: 3
Power and Communication Cable - AWG: 10
Liquid Line Outer Diameter: 4 Inch
Suction Line Outer Diameter: 16 Inch
Refrigeration System
Refrigerant Type: R-410A
Compressor Type: Inverter
Max. Line Length - Each: 229.6 Ft.
Max. Height Diff. btwn. Indoor and Outdoor Units: 98 Ft.
Max. Height Diff. btwn. Indoor Units: 49 Ft.
Outside Temperature Range for Cooling - Min.: 14 °F
Outside Temperature Range for Cooling - Max.: 118 °F
Outside Temperature Range for Heating - Min.: 0 °F
Outside Temperature Range for Heating - Max.: 64 °F
Features
Inverter (Variable speed compressor): Yes
Low Ambient Operating Threshold (F°): 14
Corrosion Protection: Yes
Technical Details
ADA Compliant: No
Voltage: 230/208 Volts
Warranty Terms
Parts Warranty: 7 Year
Dimensions & Weights
Width: 37 13/32 Inch
Depth: 13 Inch
Height: 54 11/32 Inch
Net Weight: 213.8 Lbs.
Shipping Weight: 236 Lbs.
GTIN
UPC: 048231367806

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From the Manufacturer

The LG HVAC Advantage
LG HVAC systems offer a range of solutions that are cost efficient, quiet and attractive. They provide a smart alternative to both central HVAC and window-mounted air conditioners, and are available in a variety of configurations to suit different cooling and heating situations.

Split Systems
These innovative systems are "split" into indoor and outdoor units. The interior units are available in several different units. The interior units are available in several different configurations: Art Cool, standard wall-mounted, Floor Standing and ceiling cassettes. All interior units have remote controls for easy use. Installation by a qualified HVAC contractor is safe and easy - no duct work or sheet metal is needed. Single, dual and tri-zone systems, as well as cooling only and heat pump models, are available.

Flex Multi-Split Dual-, Tri- and Quad-Zone Air Conditioning Systems
The larger, Flex Multi-Split systems operate two, three or four interior units that are mounted in separate rooms. Each indoor unit comes with its own remote control, allowing the customer to set the temperature individually in different rooms. These units are connected to a single exterior unit. The interior units are available in a variety of styles, including Art Cool, Standard, Ceiling Cassette, and Ceiling Concealed Duct models. Dual-, Tri- and Quad-Zone are available in Heat Pump systems.

Warranty Info
Luxuries Of A Mini-Split (Ductless Split System)
Ductless Split Air Conditioner and Heat Pump products offer wide versatility in solving your cooling and heating requirements. The Indoor unit (evaporator) is mounted inside the room, and usually goes very unnoticeable. It is connected to the outdoor unit (condenser) via refrigerant lines and inter-unit wiring through a 3-1/2" opening in the wall. Since no ductwork is required, installation is simple, fast and efficient. There is no need to use up window space or cut large openings in existing walls, which could undermine the integrity of your structure, and even pose security risks. Since the Rotary compressor is located in the outdoor unit, compressor operating noise is virtually eliminated from the indoor. The indoor unit has been uniquely designed to provide Whisper Quiet operation while delivering comfort throughout the room(s). In addition, rotary compressors provide efficient, powerful cooling at the lowest noise levels in the industry.

Installation and Warranty Info
AJ Madison recommends the installation of a Ductless Split System to be done 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 it has to cool. For assistance with all your technical needs please contact our technical department at hvactechsupport@ajmadison.com.

Note: AJ Madison will only finalize a Mini-Split (Ductless Split System) purchase with an authorized HVAC Technician.

Should you experience an issue during the installation or the initial startup of the unit please do not contact the manufacturer. You should have the technician that installed the units contact either AJ Madison or the manufacturer. We cannot accept any service or warranty calls from anybody but a licensed HVAC technician. We have 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 where 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.

Note: 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 a full year to compliment the manufacturers' parts warranty).
  • Specifications
  • Features
  • Reviews
  • Warranty Info

Specifications

Specifications
Capacity:  
54,000 BTU/h Class
Power Input - Cooling (Min.~Rated~Max.):  
1.00~5.10~5.86 kW
Power Input - Heating (Min.~Rated~Max.):  
1.49~5.40~6.19 kW
Running Current - Cooling (Min.~Rated~Max.):  
4.8~24.5~26.5 Amps
Running Current - Heating (Min.~Rated~Max.):  
7.1~25.7~27.5 Amps
Power Supply:  
1/208 ~ 230/60
Power Suuply Cable (Outdoor):  
3 x 10 (No. x AWG)
Transmission Cable (Outdoor To Indoor Unit):  
4 x 16 (No. AWG)
Min. # Of Connectable Indoor Units:  
2
Max. # Of Connectable Indoor Units:  
8
Refrigerant - Charge:  
155.2 Oz.
Refrigerant - Type:  
R-410A
Refrigerant - Control:  
EEV
Sound Level (Cooling/Heating):  
54/56
Piping Connections - Liquid:  
3/8" x 1EA
Piping Connections - Gas:  
3/4" x 1EA
Max. Total Piping:  
475.7 Ft.
Max. OD~ID Piping:  
229.6 Ft.
Piping Length (No Additional Refrigerant):  
147.6 Ft.
Max. Elevation Difference (Outdoor Unit~Indoor Unit):  
98.4 Ft.
Max. Elevation Difference (Indoor Unit~Indoor Unit):  
49.2 Ft.
Operation Range - Cooling:  
14° ~ 118.4°F
Operation Range - Heating:  
0° ~ 64.4°F
Dimensions and Weights
Overall Width:  
37 13/32"
Overall Depth:  
13"
Overall Height:  
54 11/32"
Net Weight:  
213.8 Lbs.

Features

***Capacity varies depending on the combination.***
***See Engineering and Specifications Guide for combinations of indoor units.***
Defrost / Deicing
Restart Delay (3-Minutes)
Self Diagnosis
Soft Start
Auto Operation
Auto Restart Operation
Low Ambient Operation To 14°F (Cooling Mode)
Gold Fin Anti-Corrosion
Exterior Unit Includes:
  • Exterior Unit
  • Factory Refrigerant Charge
  • Installation Manual

LG LMU540HV 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 hvactechsupport@ajmadison.com.

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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