Page 1
OWNER’S MANUAL AIR CONDITIONER Please read this manual carefully before operating your set and retain it for future reference. TYPE : Standard Libero / Artcool Libero Ceiling Cassette Ceiling Concealed Duct - Low Static http://www.lghvac.com www.lg.com P/NO : MFL67449204...
Auto Restart Function .....20 Horizontal Vane Control (Up/Down Airflow Direction Control) ....21 Vertical Louver Control (Left/Right Airflow Direction Control) (Optional)....21 E. Maintenance and Service....22 Standard Libero/Artcool Libero Type ..22 Ceiling Concealed Duct Type..23 Ceiling Cassette Type .....23 Operation Tips!........24 2 Multi Air Conditioner...
Safety Precautions Safety Precautions To prevent injury to the user or other people and property damage, the following instructions must be followed. ■ Incorrect operation due to ignoring instruction will cause harm or damage. The seriousness is classified by the following indications. This symbol indicates the possibility of death or serious injury.
Page 4
Safety Precautions Indoor/outdoor wiring connections must Safely dispose off the packing materials. Make sure to check that the power cable be secured tightly and the cable should Like screws, nails, batteries, broken plug is not dirty, loose or broken and be routed properly so that there is no things etc after installation or svc and then only insert the plug completely.
Page 5
Safety Precautions Do not use the product for special purposes, Do not block the inlet or outlet of air flow. Use a soft cloth to clean. Do not use such as preserving foods, works of art, etc. It harsh detergents, solvents or splashing is a consumer air conditioner, not a precision water etc .
Electrical Safety Electrical Safety • This appliance must be properly grounded. To minimize the risk of electric shock, you must alway plug into a grounded oulet. • Do not cut or remove the grounding prong from the power plug. • Attaching the adapter ground terminal to the wall receptacle cover screw does not ground the appliance unless the cover screw is metal and not insulated, and the wall receptacle is grounded through the house wiring.
Operating Instructions Operating Instructions How to insert the Batteries 1. Remove the battery cover by pulling it according to the arrow direction. 2. Insert new batteries making sure that the (+) and (-) of battery are installed correctly.(Battery Size = AAA (1.5 volt)) 3.
Operating Instructions Wireless Remote Controller [Ceiling Cassette Type] VANE ANGLE Button Used to set each vane angle. FUNCTION SETTING Button Used to set or clear Auto Clean, Smart Clean, Electric heater or Individual vane angle control. ON/OFF Button Used to turn on/off the unit.
Page 10
Operating Instructions [Standard Libero/Artcool Libero Type] Control Display Description panel screen Plasma button*: Purifies the air by removing particles that enter the indoor unit. Display screen Sleep mode auto button*: Sets the sleep mode auto operation. Temperature adjustment buttons: Adjusts the room temperature when cooling and heating.
Operating Instructions Simple Wired Remote Controller [Ceiling Concealed Duct Type] PQRCUCA0 Defrost Preheat Out door Room Temp Total on Central Run Cooling Heating Auto Dry Fan MODE SPEED Each function will be shown on the display panel for three second or so when the power is applied at first. 1.
Central Run Central Run Central Run Cooling Dehumidifying Heating Auto Operation Air Circulation Operation [Ceiling Cassette Type] Cooling Auto Operation Dehumidifying Heating Air Circulation Operation For cooling or heating operation set the desired indoor temperature by pressing the ROOM TEMPERATURE SETTING To raise the temperature BUTTONS.
Page 14
Step2(Medium-Low) Step3(Medium) Step4(Medium-High) Step5(High) [Ceiling Concealed Duct Type] SPEED [Ceiling Cassette Type] CHAOS Air Fan speed is on low. Fan speed is on medium. Fan speed is on high. Natural wind ❏ For fresher feeling, press the INDOOR FAN SPEED SELECTOR BUTTON selector and set to CHAOS or Natural wind mode.
This function properly operates when you use the remote controller matching each model. PLASMA Purification Operation (Optional) Plasma filter is a technology developed by LG to get rid of microscopic contaminants in the intake air by generating a plasma of high charge electrons.
Energy-saving cooling mode can save energy in cooling operation, because it can operate efficiently by setting body-adaptation time according to the change of time and temperature and adjusting desired temperature automatically. [Ceiling Cassette Type] 1. Press the FUNCTION button 2 times. Energy-Saving Cooling Mode symbol will bilnk.
❏ During auto clean function, moistures left in indoor units after cooling operation or healthy dehumidification operation can be removed. This function operate when the unit is turned off. [Ceiling Cassette Type ] 1. Press the FUNCTION SETTING button 1 time. Auto Clean symbol will blink.
Operating Instructions To cancel the Timer Setting • If you wish to cancel all timer setting, press Set/Clear button. • If you wish to cancel each timer setting, press the TIMER button to turn timer sleep or on or off as you want. And then press the SET/CLEAR button aiming the remote controller at the signal receptor.
Operating Instructions Different Mode Operation(Optional) When One outdoor unit have several indoor units,Different Mode Operation is which each indoor unit operate different mode. [Ceiling Concealed Duct Type ] If one indoor unit operate heating Mode while several indoor units are operating Cooling Mode, Outdoor segment and Cooling segment are blinking like screen on the left.
Forced operation is used when the remote controller can't be used. The operation will be started if the ON/OFF button is pressed. If you want to stop the operation, re-press the button. [Standard Libero/Artcool Libero Type] [Ceiling Cassette Type] ON/OFF button...
Horizontal Vane Control (Up/Down Airflow Direction Control) The Horizontal Vane can be adjusted by using the remote controller. [Ceiling Cassette Type] 1. Press the ON/OFF button to start the unit. 2. Press UP/DOWN AIRFLOW button and the louvers will swing up and down.
Maintenance and Service Maintenance and Service Before performing any maintenance, turn off the main power to the system, disconnect the circuit breaker and unplug the power cord. Standard Libero/Artcool Libero Type Clean the unit with a soft dry cloth. Do not use bleach or abrasives. Never use any of these •...
• Volatile substances Could damage the surfaces of the air conditioner. Ceiling Cassette Type Grille, Case and Remote Control ❐ Turn the system off before cleanining, To clean, wipe with a soft, dry cloth. Do not use bleach or abrasives.
Maintenance and Service Operation Tips! Do not overcool the room. Keep blinds or curtains Keep the room temperature closed. uniform. This is not good for the health and Do not let direct sunshine enter Adjust the vertical and horizontal wastes electricity. the room when the air conditioner airflow direction to ensure a is in operation.
Page 25
A8UW54GFA0[LMU540HV] A2UW18GFA0[LMU18CHV], A3UW24GFA0[LMU24CHV] A4UW36GFA0[LMU36CHV] LG Electronics México, S.A de C.V. Av. Sor Juana lnés de la Cruz No. 555 Col. San Lorenzo Industrial, Tlalnepantla de Baz Estado de México C.P. 54033 MEXICO Tel. 5321 1919 Teléfono sin costo 01 800 347 1919...