LG LBUR0552QC, LBNR0552QC Owner’s Manual
AIR
CONDITIONER
Please read this manual carefully before operating your set and retain it for future reference.
TYPE : Ceiling Duct-type Air Conditioner
For Single Ceiling Ducted models
P/No : MFL37347405_v3 |
MFL37347405 |
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CUSTOMER CARE |
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1800-180-3575 (Toll Free) |
www.lg.com/in/support |
CALL 12 x 7 (9:00 AM – 9:00 PM) |
CLICK cac.service@lgepartner.com |
To know more about LG, visit www.lg.com For Corporate/Instutional enquiries, please write to enquiries@lgindia.com
Regd. Office : LG Electronics India Pvt. Ltd., A Wing (3rd Floor), D-3, District Center, Saket, New Delhi - 110017
Ceiling Duct-Type Air Conditioner Owner’s Manual
TABLE OF CONTENTS
1. Safety Precautions .............. |
3 |
2. Operating Instructions ......... |
9 |
3. Care and Maintenance....... |
26 |
4. Before you call for service... |
29 |
F or Your Records
Write the model and serial numbers here:
Model #
Serial #
You can find them on a label on the side of each unit.
Dealer's Name
Date Purchased
R ead This Manual
Inside you will find many helpful hints on how to use
and maintain your air conditioner properly. Just a little
preventive care on your part can save you a great
deal of time and money over the life of your air
conditioner.
You'll find many answers to common problems in the
chart of troubleshooting tips. If you review our chart of
Troubleshooting Tips first, you may not need to call
for service at all.
CAUTION
•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 to ensure that they do not play with the air conditioner.
•When the power cord is to be replaced, replacement work shall be performed by authorized personnel only.
•Installation work must be performed in accordance with the national wiring standards by authorized personnel only.
2
Safety
Precautions
Precautions
To prevent injury and property damage, follow these instructions.
Incorrect operation due to ignoring instructions will cause harm or damage, the seriousness of which is indicated by the following symbols.
WARNING |
This symbol shows the possibility of death or serious injury. |
CAUTION |
This symbol indicates the possibility of injury or damage to property. |
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Never Do This |
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Always Do This |
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Installation precautions |
|
WARNINGI |
nDo not install, remove and reinstall the unit by yourself.
•Improper installation will cause water leakage, electrical shock, or fire. Please consult authorized dealer or specialist for the installation work. Please note fault caused by improper installation is not covered by warranty.
•Unit must be installed in an easily accessible area. Any additional cost required to hire a special equipment to service the unit will be the responsibility of the customer.
3
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4
5
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6
7
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8
Operating
Instructions
Operating Instructions
Name and Function of Remote Controller
•
(optional) 
(For number of COMP selection)
* 
•
(optional)
• 
(optional)
• Optional feature.
9
Information of Slide Switch
1
2 
3
4 
1
2
3
(optional)
4
(optional)
IDU Fan Speed Provision
Model |
Capacity |
IDU Fan Speed |
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LB-G0308QC |
33K BTU/h |
3 Speed (Hi, Low and Medium) |
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LB-G0307QC |
36K BTU/h |
3 Speed (Hi, Low and Medium) |
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LB-R0551QC / |
66K BTU/h |
3 Speed (Hi, Low and Medium) |
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LB-R0552QC |
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LB-80851QC |
102K BTU/h |
3 Speed (Hi, Low and Medium) |
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LB-80852QC |
102K BTU/h |
3 Speed (Hi, Low and Medium) |
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LB-81100QC |
132K BTU/h |
3 Speed (Hi, Low and Medium) |
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LB-81101QC |
132K BTU/h |
3 Speed (Hi, Low and Medium) |
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LB-K1700QC |
204K BTU/h |
3 Speed (Hi, Low and Medium) |
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When changing the product selection switch and group control switch, you must press the reset switch to use the changed selection.
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10
Set the Current Time and a day of the Week
1 |
Press the ' |
' button. |
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Hour |
Each time the button is pressed, the number is changed from 00 to 23. You can set the number of the current hour.
AUTO SWING |
OPERATION |
SET TEMP |
FAN SPEED |
SUB FUNCTION |
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Room Temp |
HI |
AUTO |
Heater |
Preheat |
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MED |
JET |
Defrost |
Humidify |
Hour |
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LO |
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Filter |
Out door |
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Time |
ZONE |
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1 2 3 4 |
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Timer |
Operation unit |
Program set |
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On Off |
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Set no. Time |
01 |
03 05 07 |
09 11 13 |
15 17 |
19 |
21 |
23 |
2 |
Press the ' |
' button. |
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Min |
Each time the button is pressed, the number is increased from 00 to 59. You can set the number of the current minute.
AUTO SWING |
OPERATION |
SET TEMP |
FAN SPEED |
SUB FUNCTION |
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Room Temp |
HI |
AUTO |
Heater |
Preheat |
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MED |
JET |
Defrost |
Humidify |
Min |
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LO |
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Filter |
Out door |
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Time |
ZONE |
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1 2 3 4 |
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Timer |
Operation unit |
Program set |
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On Off |
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Set no. Time |
01 |
03 05 07 |
09 11 13 |
15 17 |
19 |
21 |
23 |
Week
3 Press ' 
' button.
Each time the button is pressed, a day of the week is shifted from sunday to saturday. You can set the day of the week.
Week |
AUTO SWING |
OPERATION |
SET TEMP |
FAN SPEED |
SUB FUNCTION |
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Room Temp |
HI |
AUTO |
Heater |
Preheat |
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MED |
JET |
Defrost |
Humidify |
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LO |
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Filter |
Out door |
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Time |
ZONE |
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1 2 3 4 |
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Timer |
Operation unit |
Program set |
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On Off |
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Set no. Time |
01 |
03 05 07 |
09 11 13 |
15 17 |
19 |
21 |
23 |
4 Press the ' 
RESET ' button.
If you want to reset the current time and a day of the week, click the Reset button.
AUTO SWING |
OPERATION |
SET TEMP |
FAN SPEED |
SUB FUNCTION |
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RESET |
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Room Temp |
HI |
AUTO |
Heater |
Preheat |
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MED |
JET |
Defrost |
Humidify |
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LO |
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Filter |
Out door |
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Time |
ZONE |
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1 2 3 4 |
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Timer |
Operation unit |
Program set |
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On Off |
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Set no. Time |
01 |
03 05 07 |
09 11 13 |
15 17 |
19 |
21 |
23 |
11
Weekly Programming
1 Press the Program button. |
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The remote controller is displayed like a picture. Then ' |
Program set |
', ' |
' and '01' is blinked. |
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Program |
AUTO SWING |
OPERATION |
SET TEMP |
FAN SPEED |
SUB FUNCTION |
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Room Temp |
HI |
AUTO |
Heater |
Preheat |
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MED |
JET |
Defrost |
Humidify |
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LO |
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Filter |
Out door |
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Time |
ZONE |
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1 2 3 4 |
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Timer |
Operation unit |
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Program set |
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On Off |
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Set no. Time 01 |
03 05 |
07 |
09 11 13 |
15 17 |
19 |
21 |
23 |
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2 Press the ' Week ' button.
Week
Press 
button repeatedly until desired mode appears.
Week
Week
For example, if you want Thu, press 
button 4 times.
3 Select the time you want.
Press Hour or Min |
button, then blinking letter is shown. |
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If you press SET/CLR button, then ' |
' shape appears. |
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unit |
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' 05 ' shape means that five o'clock is reserved. |
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Using below buttons, you can reserve time. |
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SET/CLR |
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Hour |
Min |
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* For example, the air-conditioner is on 6,7,8 and 13~22 o'clock.
AUTO SWING |
OPERATION |
SET TEMP |
FAN SPEED |
SUB FUNCTION |
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Room Temp |
HI |
AUTO |
Heater |
Preheat |
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MED |
JET |
Defrost |
Humidify |
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LO |
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Filter |
Out door |
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Time |
ZONE |
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1 2 3 4 |
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Timer |
Operation unit |
Program set |
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On Off |
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Set no. Time |
01 |
03 05 07 |
09 11 13 |
15 17 |
19 |
21 |
23 |
4 Press the Program button again to finish weekly programmining.
Program
<![endif]>ENGLISH
12
Holiday Setting
If Tuesday is a holiday in this week, you may set a holiday.
1 |
Program |
Press the Program button. |
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2 |
Week |
Press the Week button. |
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Select the Tuesday. |
3 |
Holiday |
Press the Holiday button. |
Then the remote controller will be displayed ' 
'. The outside rectangular means holiday.
AUTO SWING |
OPERATION |
SET TEMP |
FAN SPEED |
SUB FUNCTION |
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Room Temp |
HI |
AUTO |
Heater |
Preheat |
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MED |
JET |
Defrost |
Humidify |
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LO |
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Filter |
Out door |
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Time |
ZONE |
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1 2 3 4 |
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Timer |
Operation unit |
Program set |
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On Off |
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Set no. Time |
01 |
03 05 07 |
09 11 13 |
15 17 |
19 |
21 |
23 |
4Press the Program button again to finish holiday setting. Program
Timer Setting (Delay start/Pre-set stop)
This function is used to turn on or turn off in several hours.
Timer
Press the Timer button
1
to turn Timer on or off.
2 Change the timer setting until the desired time is set.
Hour Min
Cancel
3 If you want to cancel the timer setting, press the Cancel button.
Note :- • ON Timer is available when unit is OFF.
•OFF Timer is available when unit is ON.
•It starts counting time after Timer was set.
•Timer can be set upto 24 hours.
13
Operation Mode
Cooling Mode
Soft Dry Mode
Auto Mode
Operation Procedure
1st |
On/Off Button |
AUTO SWING |
OPERATION |
SET TEMP |
FAN SPEED |
SUB FUNCTION |
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Room Temp |
HI |
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MED |
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LO |
Filter |
Out door |
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Time |
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1 2 3 4 |
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Timer Operation unit |
Program set |
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On Off |
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2nd |
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Set no. Time 01 |
03 05 07 |
09 11 13 |
15 17 19 |
21 |
23 |
Operation Mode Selection Button |
3 |
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1 |
3rd |
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2 |
Room Temperature Setting Button |
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4 |
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4th |
Indoor Fan Speed Selection Button |
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<![endif]>ENGLISH
14
Cooling Operation Mode
1Press the On/Off Button.
2Press the Operation Mode Selection Button. Each time the button is pressed, the operation mode is shifted in the arrow direction.Select Cooling Operation.
COOLING MODEL
Operation Display
AUTO SWING |
OPERATION |
SET TEMP |
FAN SPEED |
SUB FUNCTION |
AUTO SWING |
OPERATION |
SET TEMP |
FAN SPEED |
SUB FUNCTION |
AUTO SWING |
OPERATION |
SET TEMP |
FAN SPEED |
SUB FUNCTION |
|||||||||
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Room Temp |
HI |
AUTO |
Heater |
Preheat |
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Room Temp |
HI |
AUTO |
Heater |
Preheat |
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Room Temp |
HI |
AUTO |
Heater |
Preheat |
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MED |
JET |
Defrost |
Humidify |
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MED |
JET |
Defrost |
Humidify |
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MED |
JET |
Defrost |
Humidify |
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LO |
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Filter |
Out door |
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LO |
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Filter |
Out door |
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LO |
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Filter |
Out door |
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TimeZONE |
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1 2 3 4 |
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TimeZONE |
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1 2 3 4 |
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TimeZONE |
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1 2 3 4 |
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Timer |
Operation unit |
Program set |
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Timer |
Operation unit |
Program set |
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Timer |
Operation unit |
Program set |
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On Off |
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On Off |
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On Off |
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Set no. Time |
01 |
03 05 07 |
09 11 13 |
15 17 |
19 |
21 |
23 |
Set no. Time |
01 |
03 05 07 |
09 11 13 |
15 17 |
19 |
21 |
23 |
Set no. Time |
01 |
03 05 07 |
09 11 13 |
15 17 |
19 |
21 |
23 |
Cooling Operation Soft Dry Operation Auto Operation
3lower than the room temperature.Set the temperature
AUTO SWING |
OPERATION |
SET TEMP |
FAN SPEED |
SUB FUNCTION |
|||
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Room Temp |
HI |
AUTO |
Heater |
Preheat |
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MED |
JET |
Defrost |
Humidify |
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LO |
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Filter |
Out door |
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Time |
ZONE |
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1 2 3 4 |
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Timer |
Operation unit |
Program set |
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On Off |
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Set no. Time |
01 |
03 05 07 |
09 11 13 |
15 17 |
19 |
21 |
23 |
•The temperature can be set within a range of 18°C ~ 30°C by 1°C .
To raise the Temperature.
To lower the Temperature.
4Set the fan speed.
Operation Display
AUTO SWING |
OPERATION |
SET TEMP |
FAN SPEED |
SUB FUNCTION |
AUTO SWING |
OPERATION |
SET TEMP |
FAN SPEED |
SUB FUNCTION |
AUTO SWING |
OPERATION |
SET TEMP |
FAN SPEED |
SUB FUNCTION |
|||||||||
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Room Temp |
HI |
AUTO |
Heater |
Preheat |
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Room Temp |
HI |
AUTO |
Heater |
Preheat |
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Room Temp |
HI |
AUTO |
Heater |
Preheat |
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MED |
JET |
Defrost |
Humidify |
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MED |
JET |
Defrost |
Humidify |
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MED |
JET |
Defrost |
Humidify |
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LO |
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Filter |
Out door |
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LO |
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Filter |
Out door |
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LO |
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Filter |
Out door |
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TimeZONE |
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1 2 3 4 |
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TimeZONE |
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1 2 3 4 |
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TimeZONE |
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1 2 3 4 |
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Timer |
Operation unit |
Program set |
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Timer |
Operation unit |
Program set |
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Timer |
Operation unit |
Program set |
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On Off |
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On Off |
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On Off |
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Set no. Time |
01 |
03 05 07 |
09 11 13 |
15 17 |
19 |
21 |
23 |
Set no. Time |
01 |
03 05 07 |
09 11 13 |
15 17 |
19 |
21 |
23 |
Set no. Time |
01 |
03 05 07 |
09 11 13 |
15 17 |
19 |
21 |
23 |
•Select the fan speed in three stepshigh, low, medium.
•The display shows high fan speed.
•Each time the button is pressed, the fan speed mode is shifted.
15
Soft Dry Operation Mode
This mode dehumidifies without overcooling.
1Press the On/Off Button.
2Select Soft Dry Operation.
Press the operation Mode Selection Button.
Each time the button is pressed, the operation mode is shifted in the arrow direction.
COOLING MODEL
Operation Display
AUTO SWING |
OPERATION |
SET TEMP |
FAN SPEED |
SUB FUNCTION |
AUTO SWING |
OPERATION |
SET TEMP |
FAN SPEED |
SUB FUNCTION |
AUTO SWING |
OPERATION |
SET TEMP |
FAN SPEED |
SUB FUNCTION |
|||||||||
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Room Temp |
HI |
AUTO |
Heater |
Preheat |
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Room Temp |
HI |
AUTO |
Heater |
Preheat |
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Room Temp |
HI |
AUTO |
Heater |
Preheat |
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MED |
JET |
Defrost |
Humidify |
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MED |
JET |
Defrost |
Humidify |
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MED |
JET |
Defrost |
Humidify |
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LO |
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Filter |
Out door |
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LO |
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Filter |
Out door |
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LO |
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Filter |
Out door |
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TimeZONE |
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1 2 3 4 |
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TimeZONE |
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1 2 3 4 |
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TimeZONE |
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1 2 3 4 |
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Timer |
Operation unit |
Program set |
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Timer |
Operation unit |
Program set |
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Timer |
Operation unit |
Program set |
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On Off |
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On Off |
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On Off |
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Set no. Time |
01 |
03 05 07 |
09 11 13 |
15 17 |
19 |
21 |
23 |
Set no. Time |
01 |
03 05 07 |
09 11 13 |
15 17 |
19 |
21 |
23 |
Set no. Time |
01 |
03 05 07 |
09 11 13 |
15 17 |
19 |
21 |
23 |
Cooling Operation Soft Dry Operation Auto Operation
3During Soft Dry Operation.
•The indoor fan speed is automatically set to the low, so the shift of the indoor fan speed is impossible because it's already being set to the best speed for Dry Operation by Micom Control.
<![endif]>ENGLISH
16
Auto Operation Mode
1 Press the On/Off Button.
To select Auto Operation , press the Operation Mode Selection button. |
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2 Each time the button is pressed, the operation mode is shifted in the direction of the arrow. |
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COOLING MODEL |
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Operation Display |
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AUTO SWING OPERATION |
SET TEMP FAN SPEED |
SUB FUNCTION |
AUTO SWING OPERATION |
SET TEMP FAN SPEED |
SUB FUNCTION |
AUTO SWING |
OPERATION |
SET TEMP FAN SPEED |
SUB FUNCTION |
||||||
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Room Temp |
AUTO |
Heater |
Preheat |
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Room Temp |
AUTO |
Heater |
Preheat |
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Room Temp |
AUTO |
Heater |
Preheat |
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HI |
|
HI |
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HI |
|||||||||
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MED |
JET |
Defrost |
Humidify |
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MED |
JET |
Defrost |
Humidify |
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MED |
JET |
Defrost |
Humidify |
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LO |
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Filter |
Out door |
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LO |
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Filter |
Out door |
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LO |
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Filter |
Out door |
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TimeZONE |
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1 2 3 4 |
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TimeZONE |
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1 2 3 4 |
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TimeZONE |
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1 2 3 4 |
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Timer Operation unit |
Program set |
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Timer Operation unit |
Program set |
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Timer Operation unit |
Program set |
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On Off |
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On Off |
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On Off |
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Set no. Time 01 03 05 07 |
09 11 13 15 17 19 |
21 |
23 |
Set no. Time 01 03 05 07 |
09 11 13 15 17 19 |
21 |
23 |
Set no. Time 01 |
03 05 07 |
09 11 13 15 17 19 |
21 |
23 |
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Cooling Operation |
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Soft Dry Operation |
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Auto Operation |
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During Auto Operation:
qYou can switch the indoor fan speed.
qThe system will automatically switch from the cooling mode to the heating mode as the room temperature and set temperature.(Heat pump model only)
17
FAN Operation
1 Press the On/Off Button.
<![if ! IE]><![endif]>ENGLISH
2 Press FAN Operation Button.
Each time Indoor Fan Speed button is pressed, the fan speed mode is shifted in the
3 arrow direction.
AUTO SWING |
OPERATION |
SET TEMP |
FAN SPEED |
SUB FUNCTION |
• Fan speed is high. |
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Room Temp |
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HI |
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AUTO |
Heater |
Preheat |
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MED |
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JET |
Defrost |
Humidify |
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LO |
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Filter |
Out door |
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TimeZONE |
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1 2 3 4 |
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Timer |
Operation unit |
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Program set |
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On Off |
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Set no. Time |
01 |
03 |
05 |
07 |
09 |
11 |
13 |
15 |
17 |
19 |
21 |
23 |
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AUTO SWING |
OPERATION |
SET TEMP |
FAN SPEED |
SUB FUNCTION |
• Fan speed is low. |
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Room Temp |
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HI |
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AUTO |
Heater |
Preheat |
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MED |
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JET |
Defrost |
Humidify |
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LO |
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Filter |
Out door |
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TimeZONE |
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1 2 3 4 |
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Timer |
Operation unit |
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Program set |
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On Off |
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Set no. Time |
01 |
03 |
05 |
07 |
09 |
11 |
13 |
15 |
17 |
19 |
21 |
23 |
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AUTO SWING |
OPERATION |
SET TEMP |
FAN SPEED |
SUB FUNCTION |
• Fan speed is medium. |
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Room Temp |
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HI |
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AUTO |
Heater |
Preheat |
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MED |
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JET |
Defrost |
Humidify |
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LO |
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Filter |
Out door |
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TimeZONE |
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1 2 3 4 |
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Timer |
Operation unit |
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Program set |
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On Off |
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Set no. Time |
01 |
03 |
05 |
07 |
09 |
11 |
13 |
15 |
17 |
19 |
21 |
23 |
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* You can't set the temperature in Fan Operation mode. To exit this mode, press 'Operation Mode' button.
18
Child Lock Function
This is the Function that any children cannot used to the air-conditioner.
Operation procedure
1 To set the Child-Lock Function
Press the Timer button and Minute Set button for three seconds. Then the operation mode shift to child lock mode and it is displayed ‘CL’ in the operation display.
When you press any button 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 in the remote controller.
OPE RA TI ON |
SE T T EM P |
SU B F UN CT ION |
Timer Oper ation unit |
Prog ram s et |
Su n Mon Tu e Wed Thu Fr i Sa t |
On O ff
Se t no. Time 01
03
05
07
09
11
13
15
17
19
21
23
19
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