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28

Ceiling Cassette Air Conditioner

Operating Instructions

Timer

Program

Hour

Cancel

2ndF

Week

Holiday

Set/Clr

Min

RESET

PLASMA

2ndF

ZONE

1 2 3 4

Operation unit  No Func 

Humidify

JET
SLo

AUTO

Program set

Room Temp

MED
LO

Heater
Defrost
Filter

Preheat

Out door

Time

Timer

On
Set no. Time

Off

01

03

05

07

09

11

13

15

17

19

21

23

AUTO SWING

OPERATION

FAN SPEED

SUB FUNCTION

SET TEMP

HI

Plasma

Press the On/Off button. The
unit will respond with a beep.

1

Open the door on the remote control.
Press the PLASMA air purifying
operation ON/OFF button.

Operation will start when

the button is pressed and stop 

when the button is pressed again.

2

Set the fan speed again with door of the remote
control closed. You can select the fan speed in
four steps-low, medium, high or Auto. 
Each time the button is pressed, the fan speed
mode is shifted.

Air purifying operation (PLASMA) 
with cooling, heating or any 
other operations.

3

Tips for Filter sign LED

1. Filter sign lamp (LED) is ON.

2. If LED indicating filter sign lamp is ON, clean the filter.

3. After cleaning the filter, press the 2ndF and          button of the wired remote controller at

the Same time for 3 sec.
Then filter sign led will be off.

PLASMA Purification Operation (Optional)

Summary of Contents for LTNC186ELE1

Page 1: ...OWNER S MANUAL AIR CONDITIONER Please read this manual carefully before operating your set and retain it for future reference TYPE Ceiling Cassette www lg com P NO MFL42199501 ...

Page 2: ...hart of troubleshooting tips If you review our chart of Troubleshooting Tips first you may not need to call for service at all PRECAUTION Contact the authorized service technician for repair or maintenance of this unit Contact the installer for installation of this unit The air conditioner is not intended for use by young children or invalids without supervision Young children should be supervised...

Page 3: ...o follow the instruction Installation Do not use a defective or underrated circuit breaker Use this appliance on a dedicated circuit There is risk of fire or electric shock For electrical work contact the dealer seller a qualified electrician or an Authorized Service Center Do not disassemble or repair the product There is risk of fire or electric shock Always ground the product There is risk of f...

Page 4: ... to the product Be sure the installation area does not deteriorate with age If the base collapses the air conditioner could fall with it causing property damage product failure and personal injury Do not plug or unplug the power supply plug during operation There is risk of fire or electric shock Do not touch operate the product with wet hands There is risk of fire or electrical shock Do not place...

Page 5: ... of electric shock or fire Stop operation and close the window in storm or hurricane If possible remove the product from the window before the hurricane arrives There is risk of property damage failure of product or electric shock Do not open the inlet grill of the product during operation Do not touch the electrostatic filter if the unit is so equipped There is risk of physical injury electric sh...

Page 6: ...product where it will be exposed to sea wind salt spray directly It may cause corrosion on the product Corrosion particularly on the condenser and evaporator fins could cause product malfunction or inefficient operation 90 When the product is not be used for a long time disconnect the power supply plug or turn off the breaker There is risk of product damage or failure or unintended operation Take ...

Page 7: ...lfunction or damage Do not insert hands or other objects through the air inlet or outlet while the product is operated There are sharp and moving parts that could cause personal injury Do not drink the water drained from the product It is not sanitary and could cause serious health issues Use a firm stool or ladder when cleaning or maintaining the product Be careful and avoid personal injury Repla...

Page 8: ... stoves or other heating devices 3 Do not use this air conditioner for non specified special purposes e g preserving precision devices food pets plants and art objects Such usage could damage the items 1 Do not touch the metal parts of the unit when removing the filter Injuries can occur when handling sharp metal edges 2 Do not use water to clean inside the air conditioner Exposure to water can de...

Page 9: ...tioner This symbol indicates special notes NOTICE Features Anti bacteria Anti bacteria Heat Pump Model Cooling Model Remote Controller Air Outlet Air Intake Signal Receptor Signal Receptor Symbols used in this Manual WARNING This appliance should be installed in accordance with national wiring regulations This guide acts as a guide to help to explain product features ...

Page 10: ...g from the power wire WARNING 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 WARNING If you have any doubt whether the air conditioner is properly grounded have the wall receptacle and circuit checked by a qualified electrician Prefe...

Page 11: ... receiving sound two short beeps or one long beep Operation Indication Lamps On Off Lights up during the system operation Filter Sign Lights up after 2400 hours from the time of first operating unit Refer to page 28 Timer Lights up during Timer operation Defrost Mode Lights up during Defrost Mode or Hot Start operation Heat pump model only Outdoor Unit Lights up during outdoor unit operation Opera...

Page 12: ...lter Preheat Out door Time Timer On Set no Time Off 01 03 05 07 09 11 13 15 17 19 21 23 2ndF 1 2 5 6 7 8 9 10 11 12 13 3 4 14 1 Operation indication screen 2 Swirl button 3 2nd F button 4 Timer set cancel Program Week Holiday Hour Min Set Clr Ventilator 5 Set temperature button 6 ON OFF button 7 Fan operation 8 Operation mode selection button 9 Fan speed button 10 Horizontal Vertical air flow dire...

Page 13: ...SLEEP MODE AUTO BUTTON Used to set Sleep Mode Auto operation 11 AIR CIRCULATION BUTTON Used to circulate the room air without cooling or heating 12 ROOM TEMPERATURE CHECKING BUTTON Used to check the room temperature 13 PLASMA OPTIONAL Used to start or stop the plasma purification function 14 RESET BUTTON Initialize remote controller 15 2nd F Button Used prior to using modes printed in blue at the ...

Page 14: ...st Filter Preheat Humidify Out door Timer On Set no Time Off 01 03 05 07 09 11 13 15 17 19 21 23 1 2 3 4 OPERATION FAN SPEED SUB FUNCTION SET TEMP Time AUTO SWING HI ZONE Operation unit Program set Room Temp MED LO AUTO JET Heater Defrost Filter Preheat Humidify Out door Timer On Set no Time Off 01 03 05 07 09 11 13 15 17 19 21 23 1 2 3 4 OPERATION FAN SPEED SUB FUNCTION SET TEMP Time AUTO SWING H...

Page 15: ...UTO SWING 01 03 05 07 09 11 13 15 17 19 21 23 Time Program set Time HI ZONE Operation unit Room Temp MED LO AUTO JET Heater Defrost Filter Preheat Humidify Out door Timer On Set no Off 1 2 3 4 OPERATION FAN SPEED SUB FUNCTION SET TEMP AUTO SWING 1Press the Program button The remote controller is displayed like below Then and 01 is blinked 2Press the button Select the Monday Program set Week 3Chang...

Page 16: ... 2 3 4 OPERATION FAN SPEED SUB FUNCTION SET TEMP 01 03 05 07 09 11 13 15 17 19 21 23 Time AUTO SWING Timer On Program set Time HI ZONE Operation unit Room Temp MED LO AUTO JET Heater Defrost Filter Preheat Humidify Out door On Set no 1 2 3 4 OPERATION FAN SPEED SUB FUNCTION SET TEMP 01 03 05 07 09 11 13 15 17 19 21 23 Time AUTO SWING Timer Off If Tuesday is a holiday in this week you may set a hol...

Page 17: ...FAN SPEED Program set SUB FUNCTION SET TEMP Room Temp HI MED LO Heater Defrost Filter Preheat Out door Time Timer On Set no Time Off 01 03 05 07 09 11 13 15 17 19 21 23 2ndF 3 1 2 4 Cooling Mode Cooling Mode Soft Dry Mode Auto Mode Cooling Model Soft Dry Mode Heating Mode Auto Mode Heat Pump Model 1st 2nd 3rd 4th On Off Button Operation Mode Selection Button Room Temperature Setting Button Indoor ...

Page 18: ... ZONE Operation unit Program set Room Temp MED JET Heater Defrost Filter Preheat Humidify Out door Time Timer On Set no Time Off 01 03 05 07 09 11 13 15 17 19 21 23 1 2 3 4 AUTO SWING OPERATION FAN SPEED SUB FUNCTION SET TEMP AUTO Operation Display ZONE Operation unit Program set RoomTemp MED LO AUTO JET Heater Defrost Filter Preheat Humidify Out door Time Timer On Set no Time Off 01 03 05 07 09 1...

Page 19: ...21 23 1 2 3 4 AUTO SWING OPERATION FAN SPEED SUB FUNCTION SET TEMP HI HI ZONE Operation unit Program set RoomTemp MED AUTO JET Heater Defrost Filter Preheat Humidify Out door Time Timer On Set no Time Off 01 03 05 07 09 11 13 15 17 19 21 23 1 2 3 4 AUTO SWING OPERATION FAN SPEED SUB FUNCTION SET TEMP LO ZONE Operation unit Program set RoomTemp MED LO AUTO JET Heater Defrost Filter Preheat Humidify...

Page 20: ...e Off 01 03 05 07 09 11 13 15 17 19 21 23 1 2 3 4 AUTO SWING OPERATION FAN SPEED SUB FUNCTION SET TEMP HI HI ZONE Operation unit Program set RoomTemp MED LO JET Heater Defrost Filter Preheat Humidify Out door Time Timer On Set no Time Off 01 03 05 07 09 11 13 15 17 19 21 23 1 2 3 4 AUTO SWING OPERATION FAN SPEED SUB FUNCTION SET TEMP AUTO Cooling Operation Soft Dry Operation Heating Operation Auto...

Page 21: ...isplay To increase the Temperature To decrease the Temperature Cold Cool Proper Warm Hot 1Press the On Off Button 2To select Auto Operation press the Operation Mode Selection button Each time the button is pressed the operation mode is shifted in the direction of the arrow 3The temperature and fan speed are automatically set by the electronic controls based on the actual room temperature If you wa...

Page 22: ... Off 01 03 05 07 09 11 13 15 17 19 21 23 1 2 3 4 AUTO SWING OPERATION FAN SPEED SUB FUNCTION SET TEMP AUTO HEAT PUMP MODEL Cooling Operation Soft Dry Operation Heating Operation Auto Operation Operation Display HI ZONE Operation unit Program set Room Temp MED LO JET Heater Defrost Filter Preheat Humidify Out door Time Timer On Set no Time Off 01 03 05 07 09 11 13 15 17 19 21 23 1 2 3 4 AUTO SWING ...

Page 23: ...unit Program set Room Temp MED AUTO JET Heater Defrost Filter Preheat Humidify Out door Time Timer On Set no Time Off 01 03 05 07 09 11 13 15 17 19 21 23 1 2 3 4 AUTO SWING OPERATION FAN SPEED SUB FUNCTION SET TEMP SLO HI ZONE Operation unit Program set Room Temp MED AUTO JET Heater Defrost Filter Preheat Humidify Out door Time Timer On Set no Time Off 01 03 05 07 09 11 13 15 17 19 21 23 1 2 3 4 A...

Page 24: ... will be changed the open angle of two horizontal louvers 3To cancel the Swirl Mode press the Swirl Button again Timer Program Hour Cancel 2ndF Week Holiday Set Clr Min RESET PLASMA 2ndF ZONE 1 2 3 4 Operation unit No Func Humidify JET SLo AUTO Program set Room Temp MED LO Heater Defrost Filter Preheat Out door Time Timer On Set no Time Off 01 03 05 07 09 11 13 15 17 19 21 23 AUTO SWING OPERATION ...

Page 25: ...or Time Timer On Set no Time Off 01 03 05 07 09 11 13 15 17 19 21 23 1 2 3 4 JET AUTO SWING OPERATION FAN SPEED SUBFUNCTION SETTEMP AUTO LO HI ZONE Operation unit Program set RoomTemp MED Heater Defrost Filter Preheat Humidify Outdoor Time Timer On Set no Time Off 01 03 05 07 09 11 13 15 17 19 21 23 1 2 3 4 JET AUTO SWING OPERATION FAN SPEED SUBFUNCTION SETTEMP AUTO LO HI ZONE Operation unit Progr...

Page 26: ...eat Humidify Filter Out door AUTO SWING OPERATION SET TEMP FAN SPEED SUB FUNCTION Timer Program Hour Cancel 2ndF Week Holiday Set Clr Min RESET PLASMA HI ZONE Operation unit Program set RoomTemp MED AUTO JET Heater Defrost Filter Preheat Humidify Out door Time Timer On Set no Time Off 01 03 05 07 09 11 13 15 17 19 21 23 1 2 3 4 AUTO SWING OPERATION FAN SPEED SUB FUNCTION SET TEMP LO AUTO HI ZONE O...

Page 27: ...ton in this time the remote controller is not converted to any selected mode and the CL is displayed in the remote controller for about three seconds But the Room Temperature function is operated in spite of child lock mode 2 To cancel the Child Lock Function Press the Timer button and Minute Set button for three seconds Then the child lock mode is cancelled and the preselected mode is displayed i...

Page 28: ...MA air purifying operation ON OFF button Operation will start when the button is pressed and stop when the button is pressed again 2 Set the fan speed again with door of the remote control closed You can select the fan speed in four steps low medium high or Auto Each time the button is pressed the fan speed mode is shifted Air purifying operation PLASMA with cooling heating or any other operations...

Page 29: ...the value when the fan speed is set to high and the capacity will be lower at low or medium fan speed High fan speed is recommended when you wish to cool the room quickly Operating mode Cooling Cooling Heating Indoor FAN Speed High set available set available Setting Temperature 22 C set available set available Operation procedures when the remote control can t be used Press the tact switch Forced...

Page 30: ...he heat exchanger and panel vents may be professionally steam cleaned Dirty or clogged coils will reduce the operating efficiency of the system and cause higher operating costs NOTICE Air Filters The air filters behind the front grille should be checked and cleaned once every 2 weeks or more often if neccessary CAUTION When the air filter is to be removed do not touch the metal parts of the indoor...

Page 31: ...t in the indoor unit Refer to page 30 for cleaning it 2 Check that the air inlet and outlet of the indoor outdoor unit are not blocked 3 Check that the ground wire is connected correctly It may be connect to the indoor unit side Do not overcool the room This is not good for your health and wastes electricity Keep blinds or curtains closed Do not let direct sunshine enter the room when the air cond...

Page 32: ...ditioner cools the warm room air This is the protector of the mechanism Wait about three minutes and operation will begin Is the air filter dirty See air filter cleaning instructions The room may have been very hot when the room air conditioner was first turned on Allow time for it to cool down Has the temperature been set incorrectly Are the indoor unit s air inlet or outlet vents obstructed For ...

Page 33: ...Owner s Manual 33 Memo ...

Page 34: ...34 Ceiling Cassette Air Conditioner Memo ...

Page 35: ......

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