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LG LMU187HV203

Dual-Zone Concealed Duct Ductless Mini-Split System 18,000 BTUH Inverter Heat Pump (12k, 12k Indoor)
SKU : LMU187HV203
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About this Item

Bundle Includes: LMU187HV, LMDN125HV (x2)
  • Energy Star Estimated Cooling Cost: $226
  • SEER: 21
  • Room Size: 500 - 750 ft2
This item has been retired by the manufacturer and is no longer available. You may find similar products by viewing our selection of Multi Zone Systems below.
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About this Item

Bundle Includes: LMU187HV, LMDN125HV (x2)
  • Energy Star Estimated Cooling Cost: $226
  • SEER: 21

Product Highlights

Outdoor: LMU187HV
Indoor: LMDN125HV (x2)


This LG Dual-Zone Flex Multi-Split Ceiling Concealed Duct inverter system provides an easier and more economical way to cool multiple rooms from a single outdoor unit. The LG multi-zone system gives you extra design flexibility and makes installation easier which saves you money. A multi-zone system can maximize efficiency and cost savings of duct-free technology by providing individual room temperature control.

Features & Benefits:

  • Inverter (Variable Speed Compressor)
  • R-410A Refrigerant
  • Drain Pump
  • Control Lock Function
  • Auto Operation
  • Auto Restart Operation
  • 2 Thermistor Control

Please Note: Mini Split Systems must be installed by a licensed Contractor with an EPA Refrigerant Certification to qualify for warranty.

Which Line Set Kit Do You Need?


This system uses (1) 1/4" x 3/8" line set. These are sold separately, and you can choose from our 15 ft, 25 ft, 35 ft, and 50 ft lengths. The length needed depends on the needs of your project and how you will set up the system (distance from outdoor condenser to indoor air handler).

Manuals & Docs

LG Dual-Zone Concealed Duct Ductless Mini-Split System 18,000 BTUH Inverter Heat Pump (12k, 12k Indoor)
LG LMU187HV - 18,000 BTU Ductless Mini Split Outdoor Unit 220V
LG LMDN125HV - 12,000 BTU Ductless Mini Split Concealed Duct Indoor Unit 208-230V
UPC N/A
Brand LG
Model Family LG Multi
Equipment Type Heat Pump
SEER 21
EER (Energy Efficiency Ratio) 14.0
Refrigerant R-410a
HSPF (Heating Seasonal Performance Factor) 9.2
Rated Cooling Capacity (BTU) 18,000
Rated Heating Capacity (BTU) 18,000
Nominal Capacity (BTU) 18,000
Voltage 208-230 VAC
Number of Zones/Rooms 2 Zones
Color White
COP (Coefficient of Performance) 2.7
Inverter Technology Yes
Mounting Type Concealed Duct
Warranty Offered 7 Year Compressor - 5 Year Parts to Original Registered End-User with Proof of Proper Installation
Energy Star Rated No
Wireless No
Room Size 500 - 750 ft2
Maximum Cooling Capacity 18000
4-Way Remote Air Flow Control No
Filter Type Washable
Corrosion Protection Yes
Maximum Heating Capacity 18000
Sound Pressure Rating 34 dB(A)
Liquid/Gas Line Set Size 1/4" X 3/8"
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