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18,000 Class BTU Ceiling Cassette Mini Split Indoor AC Unit with 20,800 BTU Heat Pump, Chaos Wind, Auto Operation and Wireless Remote Controller

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Additional Options


Indoor Front Grille (REQUIRED with Indoor Ceiling Cassette Model)

(PTUQC) (required) preview
+ $123.00 

15 ft. Insulated Refrigeration Line Set for 18,000 BTU Indoor Units

(T42150) (required) preview
+ $117.00 

35 ft. Insulated Refrigeration Line Set for 18,000 BTU Indoor Units

(T42350) (required) preview
+ $208.00 

Optional Plasma Filter Kit for Indoor Cassette Models

(PTPKQ0) preview
+ $98.00 
LG 18,000 BTU Indoor Ceiling Cassette Indoor AC Unit (x{c1.number_of_zones_LMCN185HV})
With this LG ceiling cassette unit, you have lots of airflow options. The unit has 4 independent motorized guide vanes which can discharge airflow in a counterclockwise pattern, lock to custom fixed positions, and even be set for random air distribution. Plus, you can choose from 5 fan settings in cooling mode and 6 in heating mode. This unit includes a washable air filtration system for healthier, purer air. A wireless handheld remote-controller is also available; an LG-supplied wired controller is available separately.
Operation: Cooling with Heat Pump
Component Type: Indoor Unit
Placement Type: Ceiling Cassette
Wireless Remote Control(s) Included: Yes
Wired Remote Control(s) Included: Optional
Nominal Cooling Capacity: 18,000 BTU/h
Nominal Heating Capacity: 20,800 BTU/h
Electrical Data
Power Supply (V/Hz/Phase): 230-208V/60Hz/1
Power and Communication Cable (No. X AWG): 4 X 18
Rated Amps: 0.25 Amps
Fan: Turbo
No. of Fans: 1
Motor: Brushless Digitally Controlled
Motor Drive: Direct
Airflow Rate - Low: 388 CFM
Airflow Rate - Med.: 424 CFM
Airflow Rate - High: 459 CFM
Operating Sound Level - Low: 34 dB
Operating Sound Level - Med.: 37 dB
Operating Sound Level - High: 38 dB
Temperature Sensor: Dual Thermistor
Refrigeration System
Refrigerant Type: R410A
Refrigerant Control: EEV
Liquid Line O.D.: 1/4"
Vapor Line O.D.: 1/2"
Drain O.D.: 1 1/4"
Drain I.D.: 1"
Auto Operation: Yes
Auto-Changeover: No
Program Timer: Yes
Surge Cool/Heat: Yes
Soft Start: No
Hot Start Heating Function: Yes
Quiet/Sleep Mode: No
Human Detection Technology: No
Dehumidifying Mode: Yes
Air Filter: Yes
Primary Filter: Washable Pre-Filter
Secondary Filter: Optional Plasma
Room Freeze Protection: No
Defrost/De-icing: No
Auto-Restart on Power Failure: Yes
Self-Diagnosis: Yes
Built-in Drain Pump: Yes
Parts Warranty: 5 Year
Labor Warranty: No
Dimensions and Weights
Overall Width: 22 7/16"
Overall Depth: 22 7/8"
Overall Height: 10 3/32"
Net Unit Weight: 34 Lbs.
Shipping Weight: 42 Lbs.

Ceiling Cassette Indoor Unit (x{a.number_of_ceiling_cassette_zones})

Fan Features

  • Jet Cool

    Operates at a high speed for up to 30 minutes to quickly cool a room.


  • Control lock function

    Prevents children or others from tampering with indoor unit settings.


  • Auto Operation

    Provides three levels of comfort from which to choose. Temperature and fan speed is set automatically.

  • Auto Restart

    Automatically restarts the system after a power failure.

  • Two Thermistor Control

    Provides more accurate temperature control by gauging temperature levels from both the indoor unit and the wired remote controller.

More Features

  • Wireless LCD remote controller included

  • Drain pump included

  • Required Ceiling Grille (PT-UQC) sold separately

  • Plasma kit PTPKQ0 sold separately

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 : Indoor Unit
  • Operation : Cooling with Heat Pump
  • Placement Type : Ceiling Cassette
  • Wireless Remote Control(s) Included : Included
  • Wired Remote Control(s) Included : Optional
  • Thermostat Range - Cooling (F°) : 14 - 118
  • Thermostat Range - Heating (F°) : 0 - 64


  • BTU Class : 18,000 BTU
  • Heating Capacity : 20,800 BTU

Electrical Data

  • Power Source V / Hz / Ø : (208/230/60/1)
  • Rated Amps : 0.25 Amps


  • Fan : Turbo
  • No. of Fans : 1
  • Motor : Brushless Digitally Controlled
  • Motor Drive : Direct
  • Energy Star Certified : No
  • Moisture Removal (Pts/hr) : 4.2 Pts./Hr.
  • Airflow Rate Low (CFM) : 388 CFM
  • Airflow Rate Medium (CFM) : 424 CFM
  • Airflow Rate High (CFM) : 459 CFM
  • Operating Sound Level - Low (dB) : 34 dB
  • Operating Sound Level - Medium (dB) : 37 dB
  • Operating Sound Level - High (dB) : 38 dB
  • Temperature Sensor : Dual Thermistor

Piping Connections

  • Power and Communication Cable - No. : 4
  • Power and Communication Cable - AWG : 18
  • Liquid Line Outer Diameter : 1/4"
  • Suction Line Outer Diameter : 1/2"
  • Drain Line Outer Diameter : 1 1/4"
  • Drain Line Inner Diameter : 1"

Refrigeration System

  • Refrigerant Type : R-410A
  • Refrigerant Connection Type : Flare
  • Refrigerant Control : EEV
  • Max. Line Length - Each : 82 Ft.


  • Control Lock Function (Concealed Duct Only) : No
  • Human Detection Technology : No
  • Room-Freeze Protection : No
  • Filter Clean Notification : No
  • Hot Start Heating System (Heat Pumps Only) : Yes
  • Program Timer : Yes
  • Manual Power Switch : No
  • Defrost/Deicing : No
  • Air Filter : Yes
  • Filters Washable? : Yes
  • Filters Anti-microbial? : Yes
  • Restart Delay : No
  • Self-diagnosis : Yes
  • Condensate Sensor Connection : No
  • Soft Start : No
  • Quiet/Sleep Mode : No
  • Self-Cleaning Indoor Coil : No
  • Built-in Drain Pump (Indoor Unit) : Yes
  • Hidden Display : No
  • Surge Cool/Heat : Yes
  • Auto Operation : Yes
  • Auto Restart on Power Failure : Yes
  • Auto-changeover : No
  • Automatic Louver Adjustment : No
  • 4-Way Swing : Yes
  • Dehumidifying Mode : Yes
  • No. of Fan Speeds : 3

Technical Details

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

Warranty Terms

  • Parts Warranty : 5 Years

Dimensions & Weights

  • Width : 22 7/16"
  • Depth : 22 7/16"
  • Height : 10 3/32"
  • Net Weight : 34 Lbs.
  • Shipping Weight : 42 Lbs.
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