Please read this manual carefully before operating
your set and retain it for future reference.
TYPE :DUCT SPLIT
P/NO : MFL67009904
www.lg.com
Ducted Split Type Air Conditioner Owner s Manual
TABLE OF CONTENTS
Safety Precautions.........................3
Operating Instructions...................
6
Care and Maintenance.................13
Before you call for service ..........15
FOR 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
Staple your receipt to this page in the event you need
it to prove date of purchase or for warranty issues.
READ 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.
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 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 using only genuine
replacement parts.
•
Installation work must be performed in
accordance with the National Electric Code by
qualified and authorized personnel only.
2 Ducted Split Type Air Conditioner
Safety Precautions
Safety Precautions
To prevent the injury of 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.
This symbol indicates the possibility of injury or damage to properties only.
The meanings of the symbols used in this manual are as shown below.
Be sure not to do.
Be sure to follow the instruction.
Installation
ENGLISH
Do not use a defective or
underrated circuit breaker.
Use this appliance on a
dedicated circuit.
• There is risk of fire or electric
shock.
Install the panel and the
cover of control box securely.
• There is risk of fire or electric
shock.
Do not modify or extend the
power cable.
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 intstall a dedicated
circuit and breaker.
• Improper wiring or installation
may cause fire or electric shock.
Do not install, remove, or
re-install the unit by
yourself (customer).
•
There is risk of fire or electric
shock.
•
There is risk of fire, electric
shock, explosion, or injury.
For installation, always contact the dealer
or an Authorized Service Center.
•
There is risk of fire, electric shock, explosion, or
injury.
Always ground the product.
• There is risk of fire or electric
shock"
Use the correctly rated
breaker or fuse.
• There is risk of fire or electric
shock.
Be cautious when
unpacking and installing
the product.
•
Sharp edges could cause injury.
Be especially careful of the
case edges and the fins on the
condenser and evaporator.
Do not install the product on a defective
installation stand.
•
It may cause injury, accident, or damage to the
product.
Owner's Manual 3
Safety Precautions
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.
Operation
Take care to ensure that
power cable could not be
pulled out or damaged
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 store or use
flammable gas or
combustibles near the
prodcut.
• There is risk of fire or failure of
product.
Do not place anything on
the power cable.
•
There is risk of fire or electric
shock.
Do not place a heater or
other appliances near the
power cable.
• There is risk of fire and electric
shock.
Do not use the product in a
tightly closed space for a
long time.
• Oxygen deficiency could occur.
Do not let the air conditioner run for a long
time when the humidity is very high and a
door or a window is left open.
Moisture may condense and wet or damage
furniture.
Do not plug or unplug the
power supply plug during
operation.
•
There is risk of fire or electric
shock.
Do not allow water to run
into electric parts.
• It may cause There is risk of
fire, failure of the product, or
electric shock.
When flammable gas leaks,
turn off the gas and open a
window for ventilation
before turn the product on.
• Do not use the telephone or
turn switches on or off.
• There is risk of explosion or fire.
If strange sounds, or small or
smoke comes from product. Turn
the breaker off or disconnect the
power supply cable.
• There is risk of electric shock or
fire.
When the product is soaked
(flooded or submerged), contact
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.
Be cautious that water
could not enter the product.
an Authorized Service Center.
• There is risk of fire or eletric
shock.
Turn the main power off when
cleaning or maintaining the
product.
•
There is risk of electric shock.
• There is risk of fire, electric
shock, or product damage.
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.
Ducted Split Type Air Conditioner4
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 shock, or product
failure.
Ventilate the product from
time to time when operating
it together with a stove, etc.
• There is risk of fire or electric
shock.
Take care to ensure that nobody
could step on or fall onto the
outdoor unit.
•
This could result in personal injury
and product damage.
Installation
Always check for gas
(refrigerant) leakage after
installation or repair of product.
•
Low refrigerant levels may
cause failure of product.
Do not install the product where the
noise or hot air from the outdoor unit
could damage the neighborhoods.
•
It may cause a problem for your
neighbors.
Install the drain hose to
ensure that water is drained
away properly.
•
A bad connection may cause
water leakage.
Use two or more people to lift
and transport the product.
•
Avoid personal injury.
Operation
Do not expose the skin directly to cool air for long
periods of time. (Don’t sit in the draft.)
•
This could harm to your health.
Do not block the inlet or outlet
of air flow.
• It may cause product failure.
Do not step on or put anyting on
the product. (outdoor units)
• There is risk of personal injury
and failure of product.
Do not drink the water drained
from the product.
• It is not sanitary and could
cause serious health issues.
Do not recharge or disassemble the batteries. Do
not dispose of batteries in a fire.
• They may burn or explode.
Use a soft cloth to clean. Do
not use harsh detergents,
solvents, etc.
• There is risk of fire, electric
shock, or damage to the plastic
parts of the product.
Always insert the filter securely.
Clean the filter every two weeks
or more often if necessary.
• A dirty filter reduces the efficiency
of the air conditioner and could
cause product malfunction or
damage.
Use a firm stool or ladder when
cleaning or maintaining the
product.
• Be careful and avoid personal
injury.
Safety Precautions
Keep level even when
installing the product.
ENGLISH
•
To avoid vibration or water
leakage.
Do not install the 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.
Do not use the product for special purposes, such as preserving
foods, works of art, etc. It is a consumer air conditioner, not a
precision refrigeration system.
•
There is risk of damage or loss of property.
Do not touch the metal parts of the
product when removing the air
filter. They are very sharp!
• There is risk of personal injury.
Do not insert hands or other objects
through the air inlet or outlet while the
prodcut is operated.
• There are sharp and moving parts
that could cause personal injury.
Replace the all batteries in the
remote control with new ones of
the same type. Do not mix old and
new batteries or different types of
batteries.
• There is risk of fire or explosion
If the liquid from the batteries gets onto your skin or
clothes, wash it well with clean water. Do not use the
remote if the batteries have leaked.
• The chemicals in batteries could cause burns or
other health hazards.
Owner's Manual 5
Operating Instructions
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
Operating Instructions
Name and Function of Remote Controller
3
Signal receptor
9
8
10
11
12
13
14
15
16
AUTO SWING OPERATION
Timer
On
Off
Set no. Time
Timer Cancel
Program Week Holiday
SET TEMP
Room Temp
HI
AUTO
MEDLOJET
ZONE
Time
Program set
Operation unit
01 03 05 07 09 11 13 15 17 19 21 23
SET/CLR
MinHour
RESET
Operation display
Displays the operation conditions.
On/Off Button
Operation starts when this button is pressed, and
stops when the button is pressed again.
Set Temperature Button
Used to set the temperature when the desired
temperature is obtained.
Fan Operation Button
Used to circulate room air without cooling or
heating.
Fan Auto Button
• Fan AUTO operation mode
Used to turn the indoor fan motor to on/auto
operation mode by alternate pressing.
• Fan ON operation mode
Operation Mode Selection Button
Used to select the operation mode.
• Cooling Operation Mode
• Soft Dry Operation Mode
Humidify Button
SUB FUNCTION
Preheat
Heater
Defrost
Filter
1234
Humidify
Out door
1
2
4
5
6
7
8
17
Room Temperature Checking Button
Used to check the room temperature.
Heater Button
Timer Cancel Button
Used to cancel the timer.
Timer Set Button
Used to set the timer when the desired time is
obtained.
Week Button
Used to set a day of the week.
Program Button
Used to set the weekly timer.
Holiday Button
Used to set a holiday of the week.
Time Set Button
Used to set the time of the day and change the
time in the weekly timer Function.
Set and Clear Button
Used to set and clear the weekly timer.
Reset Button
Used to set the current time and clear the setting time.
❈
Display temperature can be different from actual room temperature if the remote controller is
installed at the place where sun-rays are falling directly or the place nearby heat source.
6
Ducted Split Type Air Conditioner
Set the Current Time and a day of the Week
Operating Instructions
Press the ' ' button.
1
Each time the button is pressed, the number is changed fromto 23 .
Hour
00
You can set the number of the current hour.
AUTO SWING
OPERATION
SET TEMP
Room Temp
HI
AUTO
MED
JET
Hour
Operation unitProgram set
Timer
On
Off
010305070911131517192123
Set no.Time
Press the ' ' button.
2
Min
Each time the button is pressed, the number is increased from .
00
to 59
Time
LO
ZONE
You can set the number of the current minute.
AUTO SWING
OPERATION
SET TEMP
Room Temp
HI
AUTO
MED
JET
Min
Week
Press ' ' button.
Operation unitProgram set
Timer
On
Off
010305070911131517192123
Set no.Time
Time
LO
ZONE
3
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.
AUTO SWING
OPERATION
Week
Operation unitProgram set
Timer
On
Off
010305070911131517192123
Set no.Time
SET TEMP
Room Temp
Time
HIMEDLO
ZONE
AUTOJET
SUB FUNCTION
Heater
Preheat
Defrost
Humidify
Filter
Out door
1234
SUB FUNCTION
Heater
Preheat
Defrost
Humidify
Filter
Out door
1234
SUB FUNCTION
Heater
Preheat
Defrost
Humidify
Filter
Out door
1234
ENGLISH
Press the ' ' button.
RESET
4
If you want to reset the current time and a day of the week, click the Reset button.
AUTO SWING
OPERATION
SET TEMP
Room Temp
Time
HIMEDLO
ZONE
RESET
Operation unitProgram set
Timer
On
Off
010305070911131517192123
Set no.Time
SUB FUNCTION
AUTO
Heater
Preheat
JET
Defrost
Humidify
Filter
Out door
1234
Owner's Manual 7
Operating Instructions
unit
Weekly Programming
Press the Program button.
1
The remote controller is displayed like a picture. Then ' ', ' ' and '01' is blinked.
Program
Program set
AUTO SWING
OPERATION
SET TEMP
Room Temp
Operation unit
Timer
On
Off
01 03 05 07 09 11 13 15 17 19 21 23
Set no.
Time
Time
Program set
HIMEDLO
ZONE
SUB FUNCTION
AUTO
Heater
JET
DefrostFilter
1234
PreheatHumidifyOut door
Press the ' ' button.
Week
2
Week
Press button repeatedly until desired mode appears.
Week
For example, if you want Thu, press button 4 times.
Week
Select the time you want.
3
Press or button, then blinking letter is shown.
If you press button, then ' ' shape appears.
05
' ' shape means that five o'clock is reserved.
Using below buttons, you can reserve time.
* For example, the air-conditioner is on 6,7,8 and 13~22 o'clock.
MinHour
Set/Clr
Set/Clr
MinHour
AUTO SWING
OPERATION
SET TEMP
Room Temp
Time
Operation unit
Timer
On
Off
01 03 05 07 09 11 13 15 17 19 21 23
Set no.
Time
Program set
HIMEDLO
ZONE
SUB FUNCTION
AUTO
HeaterDefrost
JET
Filter
1234
PreheatHumidifyOut door
Press the Program button again to finish weekly programmining.
4
8
Ducted Split Type Air Conditioner
Program
Holiday Setting
Operating Instructions
If Tuesday is a holiday in this week, you may set a holiday.
Press the Program button.
1
Press the Week button.
2
Program
Week
Select Tuesday.
Press the Holiday button.
3
Holiday
AUTO SWING
OPERATION
SET TEMP
Room Temp
OPERATION
OPERATION
Time
Program set
SET TEMP
Room Temp
Time
Program set
SET TEMP
Room Temp
Time
Program set
Operation unit
Timer
On
Off
01 03 05 07 09 11 13 15 17 19 21 23
Set no.
Time
AUTO SWING
Operation unit
Timer
On
Off
01 03 05 07 09 11 13 15 17 19 21 23
Set no.
Time
AUTO SWING
Operation unit
Timer
On
Off
01 03 05 07 09 11 13 15 17 19 21 23
Set no.
Time
HIMEDLO
ZONE
HIMEDLO
ZONE
HIMEDLO
ZONE
AUTOJET
AUTOJET
AUTOJET
Then the remote controller will display ' '.
The outside rectangular means holiday.
You cannot set the weekly program for a holiday.
Press the Program button again to finish holiday setting.
4
Timer Setting
This function is used to set either ON or Off interval once in 24 hrs since the setting was done.
The unit will automatically operate as per the settings.
Press the Timer button.
1
Timer
SUB FUNCTION
Heater
Preheat
Defrost
Humidify
Filter
Out door
1234
SUB FUNCTION
Heater
Preheat
Defrost
Humidify
Filter
Out door
1234
SUB FUNCTION
Heater
Preheat
Defrost
Humidify
Filter
Out door
1234
ENGLISH
Using Hour & Min buttons, change the timer setting
2
until the desired time is set.
MinHour
AUTO SWING
e.g. The unit is turned off after 5 hrs
OPERATION
SET TEMP
Room Temp
Time
Program set
Operation unit
Timer
On
Off
01 03 05 07 09 11 13 15 17 19 21 23
Set no.
Time
HIMEDLO
ZONE
AUTOJET
SUB FUNCTION
Heater
Preheat
Defrost
Humidify
Filter
Out door
1234
Cancel
If you want to cancel the timer setting, press the Cancel button.
3
Auto Restart Function
In case the power comes on again after a power failure, Auto Restarting Operation function automatically
operates the unit to the previous operating conditions.
Owner's Manual 9
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