IMPORTANT
Please read through this manual. It contains valuable
information about your air conditioner. This manual may
help save time and money by explaining proper product
maintenance and preventing improper use.
PRECAUTIONS
Pay close attention to precautions in order to prevent
potential hazards and damage from misuse or improper
installation. LG is not responsible for any damages caused
by misuse of the product.
LG Large Duct-Type
Air Conditioner
OWNER'S MANUAL
LG
Prior to installation, this air-conditioning
unit must be submitted for approval by the
utility service which provides electricity
(EN 61000-3 Norm.)
ENGLISH ITALIANO ESPAÑOL FRANÇAIS DEUTSCH
2 Large Duct-Type Air Conditioner
Large Duct Type Air Conditioner Owner’s Manual
TABLE OF CONTENTS
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.
Safety Precautions.........................3
Operating Instructions...................8
Care and Maintenance.................17
Before you call for service ..........19
Owner's Manual 3
Safety Precautions
ENGLISH
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
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 fire or electric
shock"
Install the panel and the
cover of control box securely.
• 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.
Use the correctly rated
breaker or fuse.
• There is risk of fire or electric
shock.
4 Large Duct-Type Air Conditioner
Safety Precautions
■ Operation
Do not modify or extend the
power cable.
• There is risk of fire or electric
shock.
Do not install, remove, or
re-install the unit by
yourself (customer).
• There is risk of fire, electric
shock, explosion, or injury.
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.
For installation, always contact the dealer
or an Authorized Service Center.
• There is risk of fire, electric shock, explosion, or
injury.
Do not install the product on a defective
installation stand.
• It may cause injury, accident, or damage 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 let the air conditioner run for a long
timewhenthehumidityisveryhighanda
door or a window is left open.
Moisture may condense and wet or damage
furniture.
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 place anything on
the power cable.
• There is risk of fire or electric
shock.
Do not plug or unplug the
power supply plug during
operation.
• There is risk of fire or electric
shock.
Owner's Manual 5
Safety Precautions
ENGLISH
Do not touch(operate) the
product with wet hands.
• There is risk of fire or electrical
shock.
Do not place a heater or
other appliances near the
power cable.
• There is risk of fire and 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.
Do not store or use
flammable gas or
combustibles near the
prodcut.
• There is risk of fire or failure of
product.
Do not use the product in a
tightly closed space for a
long time.
• Oxygen deficiency could occur.
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.
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 shock, or product
failure.
When the product is soaked
(flooded or submerged), contact
an Authorized Service Center.
• There is risk of fire or eletric
shock.
Be cautious that water
could not enter the product.
• There is risk of fire, electric
shock, or product damage.
Ventilate the product from
time to time when operating
it together with a stove, etc.
• There is risk of fire or electric
shock.
Gasolin
6 Large Duct-Type Air Conditioner
Safety Precautions
■ Operation
■ Installation
Turn the main power off when
cleaning or maintaining the
product.
• There is risk of electric shock.
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 care to ensure that nobody
could step on or fall onto the
outdoor unit.
• This could result in personal injury
and product damage.
Always check for gas
(refrigerant) leakage after
installation or repair of product.
• Low refrigerant levels may
cause failure of product.
Install the drain hose to
ensure that water is drained
away properly.
• A bad connection may cause
water leakage.
Keep level even when
installing the product.
• To avoid vibration or water
leakage.
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.
Use two or more people to lift
and transport the product.
• Avoid personal injury.
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 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 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.
9090
˚90˚
ENGLISH
Owner's Manual 7
Safety Precautions
Do not block the inlet or outlet
of air flow.
• It may cause product failure.
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.
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 step on or put anyting on
the product. (outdoor units)
• There is risk of personal injury
and failure of 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.
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.
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.
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
Do not recharge or disassemble the batteries. Do
not dispose of batteries in a fire.
• They may burn or explode.
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.
Thinner
Wax
8 Large Duct-Type Air Conditioner
Timer
Program
Hour
Cancel 2ndF
Week Holiday
Set/Clr
Min
RESET
PLASMA
AUTO
AUTO SWING
ZONE
1234
Operation unit
Humidify
JET
SLo
AUTO
OPERATION
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
No Func
3
4
5
6
15
14
16
2
1
7
17
18
19
8
9
10
11
12
13
Operating Instructions
Operating Instructions
Name and Function of Remote Controller
1. Operation display
Displays the operation conditions.
2. On/Off Button
Operation starts when this button is pressed, and
stops when the button is pressed again.
3. Set Temperature Button
Used to set the temperature when the desired
temperature is obtained.
4. FAN Operation Button
Used to circulate room air without cooling or
heating.
5. Fan Speed Button
Used to set desired fan speed.
6. Operation Mode Selection Button
Used to select the operation mode.
• Auto Operation Mode.
• Cooling Operation Mode.
• Soft Dry Operation Mode.
• Heating Operation Mode.(except cooling model)
7. Timer Cancel Button
Used to cancel the timer.
8. Timer Set Button
Used to set the timer when the desired time is
obtained.
9. Week Button
Used to set a day of the week.
10. Program Button
Used to set the weekly timer.
11. Holiday Button
Used to set a holiday of the week.
12. Time Set Button
Used to set the time of the day and change the
time in the weekly timer Function.
13. Set and Clear Button
Used to set and clear the weekly timer.
14. Room Temperature Checking Button
Used to check the room temperature.
15. Auto Function Button
16. Reset Button
Used to set the current time and clear the setting
time.
17. Wireless Remote Controller Receiver
18. Oeration Indicator
19. 2nd Function Button
Remote Controller
❈
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.
ENGLISH
Owner's Manual 9
Operating Instructions
SettheCurrentTimeandadayoftheWeek
1
Press the ' ' button.
Each time the button is pressed, the number is changed from 00 to 23.
You can set the number of the current hour.
2
Press the ' ' button.
Each time the button is pressed, the number is increased from 00 to 59.
You can set the number of the current minute.
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.
4
Press the ' ' button.
If you want to reset the current time and a day of the week, click the Reset button.
Hour
Min
Week
RESET
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
1234
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
1234
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
1234
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
Time
Timer
On
Set no. Time
Off
01 03 05 07 09 11 13 15 17 19 21 23
1234
OPERATION
FAN SPEED
SUB FUNCTION
SET TEMP
Hour
Min
Week
RESET
10 Large Duct-Type Air Conditioner
Week
Program
Set/Clr
MinHour
AUTO SWING
Time
HI
ZONE
Operation unit
Room Temp
MED
LO
AUTO
JET
Heater
Defrost
Filter
Preheat
Humidify
Out door
Timer
On
Set no.
Off
1234
OPERATION
FAN SPEED
SUB FUNCTION
SET TEMP
Program set
01 03 05 07 09 11 13 15 17 19 21 23
Time
AUTO SWING
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
1234
OPERATION
FAN SPEED
SUB FUNCTION
SET TEMP
01 03 05 07 09 11 13 15 17 19 21 23
Time
Program
Operating Instructions
Weekly Programming
4
Press the Program button again to finish weekly programmining.
1
Press the Program button.
The remote controller is displayed like a picture. Then ' ', ' ' and '01' is blinked.
2
Press the ' ' button.
Press button repeatedly until desired mode appears.
For example, if you want Thu, press button 4 times.
3
Select the time you want.
Press or button, then blinking letter is shown.
If you press button, then ' ' shape appears.
' ' 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.
Program set
Week
Week
Week
MinHour
Set/Clr
unit
05
ENGLISH
Owner's Manual 11
Operating Instructions
Holiday Setting
Auto Restart Function
Program
Timer
Cancel
Week
Holiday
In case the power comes on again after a power failure, Auto Restarting Operation function automatically
operates the unit to the previous operating conditions.
AUTO SWING
Time
HI
ZONE
Operation unit
Room Temp
MED
LO
AUTO
JET
Heater
Defrost
Filter
Preheat
Humidify
Out door
Timer
On
Set no.
Off
1234
OPERATION
FAN SPEED
SUB FUNCTION
SET TEMP
Program set
01 03 05 07 09 11 13 15 17 19 21 23
Time
AUTO SWING
Time
HI
ZONE
Operation unit
Room Temp
MED
LO
AUTO
JET
Heater
Defrost
Filter
Preheat
Humidify
Out door
Timer
On
Set no.
Off
1234
OPERATION
FAN SPEED
SUB FUNCTION
SET TEMP
01 03 05 07 09 11 13 15 17 19 21 23
Time
Program set
AUTO SWING
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
1234
OPERATION
FAN SPEED
SUB FUNCTION
SET TEMP
01 03 05 07 09 11 13 15 17 19 21 23
Time
AUTO SWING
Program set
Time
HI
ZONE
Operation unit
Room Temp
MED
LO
AUTO
JET
Heater
Defrost
Filter
Preheat
Humidify
Out door
On
Set no.
1234
OPERATION
FAN SPEED
SUB FUNCTION
SET TEMP
01 03 05 07 09 11 13 15 17 19 21 23
Time
Timer
Off
Timer Setting
If Tuesday is a holiday in this week, you may set a holiday.
Press the Program button.
1
1
2
3
Press the Week button.
Select Tuesday.
2
Press the Holiday button.
Then the remote controller will display ' '.
The outside rectangular means holiday.
❈ You cannot set the weekly program for a holiday.
3
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.
Using Hour & Min buttons, change the timer setting
until the desired time is set.
e.g. The unit is turned off after 5 hrs
If you want to cancel the timer setting, press the Cancel button.
Press the Program button again to finish holiday setting.
4
MinHour
12 Large Duct-Type Air Conditioner
Operating Instructions
Timer
Program
Hour
Cancel 2ndF
Week Holiday
Set/Clr
Min
RESET
PLASMA
AUTO
AUTO SWING
ZONE
1234
Operation unit
Humidify
JET
SLo
AUTO
OPERATION
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
No Func
3
1
4
2
Operation Procedure
Operation Cycle
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 Fan Speed Selection Button
ENGLISH
AUTO SWING
ZONE
Operation unit Program set
Room Temp
MED
LO
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
1234
OPERATION
FAN SPEED
SUB FUNCTION
SET TEMP
HI
AUTO SWING
Room Temp
HI
ZONE
Operation unit Program set
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
1234
OPERATION
FAN SPEED
SUB FUNCTION
SET TEMP
LO
AUTO SWING
HI
ZONE
Operation unit Program set
Room Temp
LO
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
1234
OPERATION
FAN SPEED
SUB FUNCTION
SET TEMP
MED
Operation Display
AUTO SWING
ZONE
Operation unit Program set
Room Temp
MED
LO
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
1234
OPERATION
FAN SPEED
SUB FUNCTION
SET TEMP
HI
AUTO SWING
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
1234
OPERATION
FAN SPEED
SUB FUNCTION
SET TEMP
LO
AUTO SWING
ZONE
Operation unit Program set
Room Temp
MED
LO
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
1234
OPERATION
FAN SPEED
SUB FUNCTION
SET TEMP
HI
AUTO SWING
ZONE
Operation unit Program set
Room Temp
MED
LO
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
1234
OPERATION
FAN SPEED
SUB FUNCTION
SET TEMP
HI
Cooling Operation Soft Dry Operation Heating Operation Auto Operation
Operation Display
To raise the Temperature.
To lower the Temperature.
AUTO SWING
ZONE
Operation unit Program set
Room Temp
MED
LO
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
1234
OPERATION
FAN SPEED
SUB FUNCTION
SET TEMP
HI
Owner's Manual 13
Operating Instructions
Operation Mode
Cooling/Heating Operation Mode
2
Select the desired Operation.
Press the Operation Mode Selection Button.
Each time the button is pressed, the operation mode is shifted as shown in the arrow direction.
1
Press the On/Off Button.
4
Set the fan speed.
3
Set the desired
temperature.
Cooling Mode
Setting temperature range is 18~30°C
Heating Mode
Setting temperature range is 16~30°C
Auto Operation (Cooling Only Model)
Auto Changeover (Heat Pump Model)
• Select the fan speed in three steps- high, low, medium.
• The display shows high fan speed.
• Each time the button is pressed, the fan speed mode is shifted.
14 Large Duct-Type Air Conditioner
Operating Instructions
AUTO SWING
ZONE
Operation unit Program set
Room Temp
MED
LO
AUTO
JET
Heater
Defrost
Filter
Humidify
Out door
Time
Timer
On
Set no. Time
Off
01 03 05 07 09 11 13 15 17 19 21 23
1234
OPERATION
FAN SPEED
SUB FUNCTION
SET TEMP
HI
Preheat
HEAT PUMP MODEL
AUTO SWING
ZONE
Operation unit Program set
Room Temp
MED
LO
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
1234
OPERATION
FAN SPEED
SUB FUNCTION
SET TEMP
HI
AUTO SWING
ZONE
Operation unit Program set
Room Temp
MED
LO
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
1234
OPERATION
FAN SPEED
SUB FUNCTION
SET TEMP
HI
COOLING MODEL
To raise the Temperature.
To lower the Temperature.
To raise the Temperature.
(When you feel too cool or cold.)
To lower the Temperature.
(When you feel too warm or hot.)
Cold Cool Proper Warm Hot
For Heat Pump Models only
Soft Dry Operation Mode
5
If the outdoor temperature is too low during the
heating operation, this air-conditioner is set to the
defrosting operation and the remote controller
indicates ‘Defrost’.
Auto Operation Mode(Heat Pump/Cooling Models)
During Auto Operation:
❏ You can switch the indoor fan speed.
❏ In case of heat Pump Models, the system will automatically switch from the cooling mode to the heating
mode as the room temperature and set temperature.(Auto changeover)
Set the temperature lower than the room themperature.
The temperature can be set within a range of 18˚C~30˚Cby1˚C.
Set the temperature upper or lower than the standard temperature.
The temperature can be set within a range of -2 ~ 2 by 1 level.
(This indication will be shifted to the initial
Auto Mode Display state after 4 seconds.)
6
Soft Dry Operation is used to remove the humidity softly without overcooling the room
specially when the humidity is already low.
The indoor fan speed is automatically set to the low, so it can’t be changed as it is already
being set to the best speed for Soft Dry Operation by Micom Control.
7
ENGLISH
AUTO SWING
ZONE
Operation unit Program set
Room Temp
MED
LO
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
1234
OPERATION
FAN SPEED
SUB FUNCTION
SET TEMP
HI
AUTO SWING
ZONE
Operation unit Program set
Room Temp
MED
LO
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
1234
OPERATION
FAN SPEED
SUB FUNCTION
SET TEMP
HI
AUTO SWING
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
1234
OPERATION
FAN SPEED
SUB FUNCTION
SET TEMP
LO
AUTO SWING
HI
ZONE
Operation unit Program set
Room Temp
LO
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
1234
OPERATION
FAN SPEED
SUB FUNCTION
SET TEMP
MED
• Fan speed is Hi
• Fan speed is Low
• Fan speed is Medium
Owner's Manual 15
Operating Instructions
FAN Operation
Self-diagnosis Function
3
Each time Indoor Fan Speed button is pressed, the fan speed mode is shifted as shown
below.
This unit has an inbuilt error diagnosis capability.
CH will flash in the wired remote controller display when any problem occurs.
Please contact your Serviceman/Dealer in such a situation
1
Press the On/Off Button.
2
Press FAN Operation Button.
Remote controller LCD Check Point
CH 01 Indoor room temperature thermistor error
CH 02 Indoor piping thermistor error
CH 03
Indoor main body / Remote controller unit communication error
CH 04(Optional) Water level float switch error
➧
➧
16 Large Duct-Type Air Conditioner
Operating Instructions
No Func
Timer
Program
Hour
Cancel 2ndF
Week Holiday
Set/Clr
Min
RESET
PLASMA
AUTO
AUTO SWING
ZONE
1234
Operation unit
Humidify
JET
SLo
AUTO
Program set
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
OPERATION
FAN SPEED
SUB FUNCTION
SET TEMP
Child Lock Function
Operation procedure
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.
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.
This is the Function that any children cannot used to the air-conditioner.
1
2
Auto Function Setting(Way to set Fan Option)
Press the "Timer + Fan Speed" button more than 3 seconds at the same time.
Press the Fan Auto button, then choose "■"or"■■■".
Repeat the first step to keep the setting.
3
2
1
AIRFLOW SETTING
IN WIRE REMOTE CONTROLLER
Low Airflow
Medium Airflow
High Airflow
Low Airflow
Medium Airflow
High Airflow
Low Airflow(Choose to AUTO)
Medium Airflow(Choose to AUTO)
High Airflow(Choose to AUTO)
Low Airflow(Choose to AUTO)
Medium Airflow(Choose to AUTO)
High Airflow(Choose to AUTO)
FAN OPTION
CONDITION
■■■
■■■
■■■
■
■
■
■■■
■■■
■■■
■
■
■
COMP ON
Setting Airflow(Low Airflow)
Setting Airflow(Medium Airflow)
Setting Airflow(High Airflow)
Setting Airflow(Low Airflow)
Setting Airflow(Medium Airflow)
Setting Airflow(High Airflow)
Setting Airflow(Low Airflow)
Setting Airflow(Medium Airflow)
Setting Airflow(High Airflow)
Setting Airflow(Low Airflow)
Setting Airflow(Medium Airflow)
Setting Airflow(High Airflow)
COMP OFF
Low Airflow
Low Airflow
Low Airflow
Setting Airflow(Low Airflow)
Setting Airflow(Medium Airflow)
Setting Airflow(High Airflow)
FAN OFF
FAN OFF
FAN OFF
FAN OFF
FAN OFF
FAN OFF
ENGLISH
Owner's Manual 17
Air outlet vent
Air filters
Air outlet vent
Care and maintenance
Care and Maintenance
Indoor Unit
Caution: Before performing any maintenance, turn off the main power to the system.
Grille, Case, and Remote Control
❏ Turn the system off before cleaning. To clean,
wipe with a soft, dry cloth. Do not use bleach or
abrasives.
Note:
Supply power must be disconnected before
cleaning the indoor unit.
❏
Never use any of the followings:
• Water hotter than 40°C
Could cause deformation and/or
discoloration.
• Volatile substances
Could damage the surfaces
of the air conditioner.
Clean the filter with a vacuum or warm, soapy
water.
• If very dirty, wash with a solution of
detergent in lukewarm water.
• If hot water (50°C or more) is used, filter
may be deformed.
After washing with water, dry well in the shade.
Re-install the air filter.
Air Filter
The air filters behind Indoor unit
(the suction side) should be checked and cleaned
once every 2 weeks or more often if necessary.
1
2
3
Outdoor Unit
The heat exchanger coils and panel vents of the
outdoor unit should be checked regularly. If
clogged with dirt or soot, the heat exchanger and
panel vents may be professionally steam
cleaned.
Note:
Dirty or clogged coils will reduce the
operating efficiency of the system and cause
higher operating costs.
Air intake
vents
Air outlet vents
Piping
B
e
n
z
e
n
e
S
C
O
U
R
I
N
G
C
L
B
A
R
G
E
R
S
I
N
N
E
R
18 Large Duct-Type Air Conditioner
Care and maintenance
When the air conditioner is not going to be used for a long time.
When air conditioner is not going to be used for a long time.
Operate the air conditioner on Air circulation mode for 2 to 3 hours.
• This will dry out the internal parts.
Turn off the circuit breaker.
CAUTION: Turn off the circuit breaker when the air conditioner is not going to be used
for a long time. Dirt may collect and may cause a fire.
When the air conditioner is to be used again.
Check that the air inlet and outlet of the indoor/outdoor unit are not blocked.
Do not overcool the room.
This is not good for the health
and wastes electricity.
Keep blinds or curtains
closed.
Do not let direct sunshine enter
the room when the air conditioner
is operation.
Make sure that the doors
and windows are shut tight.
Avoid opening doors and
windows as much as possible to
keep the cool air in the room.
Clean the air filter regularly.
Blockages in the air filter reduce
the airflow and lower cooling and
dehumidifying effects. Clean at
least once every two weeks.
Ventilate the room
occasionally.
Since windows are kept closed, it
isagoodideatoopenthemand
ventilate the room now and then.
Operation Tips
1
2
Helpful information
The air filters and your electiric bill.
If the air filters become clogged with dust, the cooling capacity will drop, and 6% of the electricity used to
operate the air conditioner will be wasted.
Owner's Manual 19
ENGLISH
Before you call for service...
Before you call for service...
Check the following points before requesting repairs or service.... If the malfunction persist, please contact your
dealer.
Troubleshooting Tips! Save time and money!
The air conditioner does not
operate.
The room has a peculiar odor.
It seems that condensation is
leaking from the air Conditioner.
Air conditioner does not operate
for about 3 minutes when restart.
Does not cool effectively.
The air conditioner operation is
noisy.
Crack sound is heard.
Remote control display is faint, or
no display at all.
• Have you made a mistake in timer operation?
• On first starting, the indoor unit operates in
fifteen seconds.
• Has the fuse blown or has the circuit breaker
been tripped?
• Check that this is not a damp smell exuded by
the walls, carpet, furniture or cloth items in the
room.
• Condensation occurs when the airflow from the
air conditioner 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 setting temperature been set
incorrectly?
• Are the indoor unit's air inlet or outlet vents
obstructed?
• For a noise that sounds like water flowing.
-This is the sound of freon flowing inside the air
conditioner unit.
• For a noise that sounds like the compressed air
releasing into atmosphere.
-This is the sound of the dehumidifying water
being processed inside the air conditioning
unit.
• This sound is generated by the
expansion/contraction of the inlet grille, etc. due
to changes of temperature.
• Has the circuit breaker been tripped?
11
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-
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17
13
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Case Explanation See page
20 Large Duct-Type Air Conditioner
Memo
P/No.: 3828A20843B
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