LG | LB-G0304QC.AAMBDUN | LG LB-G0304QC.AAMBDUN Owner’s Manual

OWNER'S MANUAL
Model : LB-H0852QC
LB-H0750QC
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.
ENGLISH
LG
Ceiling Duct-Type Air Conditioner LG
Ceiling Duct-Type Air Conditioner Owner's Manual
TABLE OF CONTENTS
F or Your Records
Write the model and serial numbers here:
Model #
Serial #
1. Safety Precautions
Also note down the following :
2. Operating Instructions
Dealer's Name
3. Care and Maintenance
Date Purchased
4. Before you call for service
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
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.
ENGLISH
To prevent injury and property damage, follow these instructions.
Never Do This
Always Do This
Installation precautions
WARNING
WARNING
n
Do 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
4
ENGLISH
5
6
ENGLISH
7
8
Operating
Instructions
Operating Instructions
ENGLISH
Name and Function of Remote Controller
Remote Controller
OPERATION
SET TEMP
COMP1
COMP2
88
Room Temp
OR
MN
FAN SPEED
HIGH
SUB FUNCTION
LP 12 HP 12
1
Out door
Filter
°C
Time
Timer
Operation unit
Sun Mon Tue
Program set
Wed
Thu
Fri
Sat
On Off
Set no. Time 01
03
05
07
09
11
13
15
17
19
21
23
3
2
7
8
10
11
12
Timer
Clear
Filter
Program
Week
Holiday
9
MANUAL
4
13
5
COMP
SET
Hour
Min
6
15
RESET
14
1 Operation display
8 Clear Button
Displays the operation conditions.
Used to cancel the different program settings.
2 On/Off Button
9 Timer Set Button
Used to set the airconditioner ON/OFF at particular
time which depends upon whether machine is On or Off.
Operation starts when this button is pressed, and
stops when the button is pressed again.
3 Set Temperature Button
10 Week Button
Used to set the temperature when the desired
temperature is obtained.
Used to set a day of the week.
11 Program Button
4 Operation Mode Selection Button
Used to set the weekly programming.
Used to select the operation mode.
12
Holiday
Button
l
Fan Operation Mode.
Used to set a holiday of the week.
Cooling Operation Mode.
l
13 Hour/Minute Selection Button
5 Manual Mode Selection Button
Used to set the time of the day and change the
time in the weekly timer Function.
Used to run according to the need of
selection of compressors.
14 Set Button
6 Compressor Selection Button
Used to set the different program settings.
Used to select one, two or three compressors.
15 Reset Button
Used to set the current time and clear the setting
time.
7 Filter Reset Button
To reset Filter Cleaning Indicator.
9
Set the Current Time and a day of the Week
10
Weekly Programming
1
Press the Program button to start the weekly programming.
The remote controller is displayed like a picture. Then ' Program set ', '
The "Program Set" will appear on LCD display.
AUTO SWING
OPERATION
SET TEMP
FAN SPEED
Room Temp
Operation unit
2
Press the '
Press
Week
Week
03
SUB FUNCTION
HI
MED
LO
AUTO Heater Preheat
JET Defrost Humidify
Filter Out door
ZONE
1 2 3 4
Time
Timer
On Off
Set no. Time 01
ENGLISH
Program
' and '01' is blinked.
Program set
05
07
09
11
13
15
17
19
21
23
' button.
Week
button repeatedly until desired day appears.
Week
For example, if you want Thu, press
3
button 4 times.
Change the time setting until the desired time is obtained.
For this operation press the Set or Clear button one or more times.
Set button means to switch ON.
Clear button means to switch OFF.
To move forward press "Min" key.
To move backward press "Hour" key.
SET
AUTO SWING
SET TEMP
Room Temp
CLR
Operation unit
On Off
Set no. Time 01
Min
03
FAN SPEED
SUB FUNCTION
HI
MED
LO
AUTO Heater Preheat
JET Defrost Humidify
Filter Out door
ZONE
1 2 3 4
Time
Timer
Hour
OPERATION
Program set
05
07
09
11
13
15
17
19
21
23
* For example, if the air-conditioner is ON for 6,7,8 and 13~22 o'clock.
So for the rest hours, the machine will be OFF.
4
Press the Program button again to finish weekly programmining.
Program
For example, the air-conditioner is on 6th,7th,8th,10th & 11th hours to remain ON and for the rest hours,
turned OFF on Monday. Following steps should be followed :
1. Press Program button
2. Press Week button and select the day (Monday).
3. By pressing Min key, select 6th hour. Solid bar will blink on 6th hour. By pressing "Set" button you can
set the 6th hour. Do same for the 7th, 8th, 10th and 11th hour.
4. Press Program button finally to set the above day.
* To cancel the set hour press
Hour
button to reach upto that set hour and then press "Clear" button.
* Black Bars indicate turn ON time and if there is no bar, it indicates OFF time.
11
Weekly Programming
If the person has not to set the remote controller in weekly programming mode then he can cancel
the weekly programming by following operations.
1
To disable the weekly programming, press the following button.
Program
Timer
Clear
If the person has to return back in weekly programming mode then he should follow the below mentioned
operation.
2
To enable the weekly programming, press the following button.
Program
Timer
Set
12
Holiday Setting
If Tuesday is a holiday in this week, you may set a holiday.
Press the Program button.
2
Press the Week button.
Select the Tuesday.
3
Press the Holiday button.
Program
ENGLISH
1
Week
AUTO SWING
Holiday
OPERATION
SET TEMP
FAN SPEED
Room Temp
AUTO Heater Preheat
JET Defrost Humidify
Filter Out door
ZONE
1 2 3 4
Time
Then the remote controller will be displayed '
The outside rectangular means holiday.
'.
4
Press the Program button again to finish holiday setting.
5
To cancel the Holiday programming, press the "Holiday"
button again.
Timer
Operation unit
On Off
Set no. Time 01
03
Program set
05
07
09
11
13
15
Program
Timer Setting
This function is used to turn on or turn off in several hours.
Timer
1
Press the Timer button
to turn Timer on or off.
2
Change the timer setting until the desired time is set.
After you have selected the time, press "Set" button.
3
Set
Hour
Min
If you want to cancel the timer setting, press the Timer button twice.
13
SUB FUNCTION
HI
MED
LO
Timer
17
19
21
23
Operation Mode
Cooling Mode
Fan Mode
Cooling Mode
Operation Procedure :
OPERATION
1st
On/Off Button
SET TEMP
88
COMP1
COMP2
Room Temp
FAN SPEED
HIGH
SUB FUNCTION
Out door
°C
Time
Timer
Operation unit
Sun Mon Tue
Program set
Wed
Thu
Fri
Sat
On Off
Set no. Time 01
2nd
Mode Selection Button to enter
in Cooling Mode (
)
03
05
07
09
11
13
15
17
19
21
23
3
1
3rd
Room Temperature Setting Button
Timer
Clear
Filter
Program
Week
Holiday
MANUAL
2
COMP
SET
In cooling mode Display shows Room Temperature, Indoor Fan Speed,
Compressor Status, Cooling Mode symbol.
Hour
Min
RESET
Temperature can be set between 18°C ~ 30°C.
Fan Mode
In this mode only FAN runs at high speed and compressors get OFF automatically.
In FAN mode Display shows - only Fan Speed & Fan Mode Symbol.
1
Press the On/Off Button.
2
Press Mode Selection Button to enter in Fan Mode (
In this mode Display will be as shown here.
).
OPERATION
SET TEMP
88
Room Temp
FAN SPEED
HIGH
SUB FUNCTION
°C
Time
Timer
Operation unit
Sun Mon Tue
Program set
Wed
Thu
Fri
On Off
Set no. Time 01
14
03
05
07
09
11
13
15
17
19
21
23
Sat
Manual Operation
Manual Operation is usually done according to the need of selection of compressors to run.
By pressing the Manual Button display shows
2
Then press Comp Button to select the compressor from Comp1 ~ Comp2.
Comp1 will start blinking
OPERATION
Manual
SET TEMP
FAN SPEED
SUB FUNCTION
MANUAL
Comp
OPERATION
SET TEMP
FAN SPEED
SUB FUNCTION
FAN SPEED
SUB FUNCTION
MANUAL
COMP1
3
Press "Set" button to fix the COMP. On each time by pressing this button
cursor will move to the next COMP.
OPERATION
Set
SET TEMP
MANUAL
COMP1
COMP2
4
To cancel the Manual Operation, we have to press the Manual Button twice.
Manual
For eg. if we have to run Comp1 only, Press the Manual Button and press Comp Button later
which showsSetCOMP1 on the screen in blinking form for which we have to press the
Set Button . On each time by pressing Comp Button cursor moves to the next compressor.
OPERATION
MANUAL
COMP1
COMP2
15
SET TEMP
FAN SPEED
SUB FUNCTION
ENGLISH
1
Safety Device (LP - HP Operation)
Used for the protection of compressors. LP and HP switch works according to gas pressure.
Indication Problem
OPERATION
Action
SET TEMP
88
Room Temp
COMP2
LP1
Low gas pressure in
Comp1
HP1
High gas pressure
in Comp1
FAN SPEED
HIGH
SUB FUNCTION
LP 1
Out door
°C
Comp1 get switch OFF
Time
Timer
Operation unit
Sun Mon Tue
Program set
Wed
Thu
Fri
Sat
On Off
Set no. Time 01
Comp1 get switch OFF
03
05
OPERATION
07
09
11
13
SET TEMP
88
Room Temp
COMP2
15
17
FAN SPEED
HIGH
19
21
23
SUB FUNCTION
HP 1
Out door
°C
Time
Timer
Operation unit
Sun Mon Tue
Program set
Wed
Thu
Fri
Sat
On Off
Set no. Time 01
Indication Problem
LP2
Low gas pressure in
Comp2
HP2
High gas pressure
in Comp2
03
05
OPERATION
Action
07
09
11
13
SET TEMP
88
COMP1
Room Temp
15
17
FAN SPEED
HIGH
19
21
SUB FUNCTION
LP 2
Out door
°C
Comp2 get switch OFF
23
Time
Timer
Operation unit
Sun Mon Tue
Program set
Wed
Thu
Fri
Sat
On Off
Set no. Time 01
Comp2 get switch OFF
03
05
OPERATION
07
09
11
13
SET TEMP
88
COMP1
Room Temp
15
17
FAN SPEED
HIGH
19
21
23
SUB FUNCTION
HP 2
Out door
°C
Time
Timer
Operation unit
Sun Mon Tue
Program set
Wed
Thu
Fri
Sat
On Off
Set no. Time 01
03
05
07
09
11
13
15
17
19
21
23
Filter
This operation starts working after 240 hours.
Display shows the Filter symbol continuously
by pressing the filter button again we can reset it.
OPERATION
SET TEMP
88
COMP1
COMP2
FAN SPEED
SUB FUNCTION
Room Temp
Out door
Filter
°C
Time
Timer
Operation unit
Sun Mon Tue
Program set
Wed
Thu
Fri
Sat
On Off
Set no. Time 01
16
03
05
07
09
11
13
15
17
19
21
23
Child Lock Function
This is the Function that any children cannot used to the air-conditioner.
1 To set the Child-Lock Function
Press the Filter button then Set button. 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 displays ‘CL’
only ON/OFF key available.
2 To cancel the Child-Lock Function
Press the Filter button then Clear button. Then the child-lock mode is cancelled
and the preselected mode is displayed in the remote controller.
OPERATION
Timer
SET TEMP
Operation unit
FAN SPEED
Sun Mon Tue
Program set
SUB FUNCTION
Wed
Thu
Fri
Sat
On Off
Set no. Time 01
03
05
07
Timer
Clear
Filter
Program
Week
Holiday
09
11
13
15
17
MANUAL
COMP
SET
Hour
Min
19
RESET
17
21
23
ENGLISH
Operation procedure
Care and
maintenance
Care and maintenance
Caution: Before performing any maintenance, turn off the main power to the system.
Indoor Unit
Never use any of the followings:
q
Grille, Case, and Remote Control
q
Turn the system off before cleaning. To clean,
• Water hotter than 40°C
wipe with a soft, dry cloth. Do not use bleach or
Could cause deformation and/or
abrasives.
discoloration.
Note:
• Volatile substances
Could damage the surfaces
Supply power must be disconnected before
of the air conditioner.
cleaning the indoor unit.
SI
Be
Air filters
Air outlet vent
1
Air Filter
n zene
N NER
SCO
U RIN G
C LB
A R GER
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.
The air filters behind Indoor unit
(the suction side) should be checked and cleaned
once every 2 weeks or more often if necessary.
2
After washing with water, dry well in the shade.
3
Re-install the air filter.
Air outlet vent
Indoor Unit Dimensions (mm)
Dimension
A
B
C
D
E
F
G
H
I
Capacity
1625 1564 597 65 660 30 294 1220 304
1625 1564 597 65 660 30 294 1220 304
• Slope of about 5-8 mm is to be provided at the
drain hole side of the indoor unit for proper
drainage.
• After installation the slope can be measured
using a sprit level.
18
Slope 5-8 mm
102K BTU/h
(LB-H0852QC)
90K BTU/h
(LB-H0750QC)
Outdoor Unit
ENGLISH
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.
A
Note:
Dirty or clogged coils will reduce the operating
efficiency of the system and cause higher
operating costs.
Side
Rear
B
Air intake vents
C
Air outlet vents
Piping
Outdoor Unit
MODEL
A
B
C
LB-H0852QC
600
906
1135
LB-H0750QC
600
906
1335
B
C
A
Indoor Unit
MODEL
Air outlet vents
A
B
C
LB-H0852QC
460
1564
660
LB-H0750QC
460
1564
660
Air intake vents
Remote Controller
19
Air filter
When the air conditioner is not going to be used for a long time.
When the air conditioner is to
be used again.
When it is not going to be used for
a long time.
1
Operate the air conditioner on Air circulation
mode for 2 to 3 hours.
Check that the air inlet and outlet of the
indoor/outdoor unit are not blocked.
• This will dry out the internal parts.
2
Turn off the circuit breaker.
Helpful information
CAUTION
CAUTION
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.
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.
Operation Tips
Do not overcool the room.
This is not good for the health
and wastes electricity.
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.
Keep blinds or curtains
closed.
Make sure that the doors
and windows are shut tight.
Do not let direct sunshine
enter the room when the air
conditioner is in operation.
Avoid opening doors and
windows as much as possible
to keep the cool air in the
room.
Ventilate the room
occasionally.
Since windows are kept
closed, it is a good idea to
open them and ventilate the
room now and then.
20
Troubleshooting
Tips
Before you call for service...
Check the following points before requesting repairs or service.... If the malfunction persist, please contact your
dealer.
Case
Explanation
See page
The air conditioner does not
operate.
• 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?
8
The room has a peculiar odor.
It seems that condensate 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.
-
11
9
-
-
-
NOTE
WATER RESISTANT The outdoor side of this appliance is WATER RESISTANT.
The indoor side is not water resistant and should not be exposed to excess
water.
21
ENGLISH
Troubleshooting Tips! Save time and money!
P/No.: 3828A33017C
After reading this manual, keep it in a place easily accessible to the user for future reference.
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