LG DMC24DB-1 User manual

Wall Mounted
Mini -Split System
DMC24DB-1, DMH24DB-1
DMC36TB-1, DMH36TB-1
Dual-Zone, Tri-Zone
Air Conditioning /Heat Pump
Important Information
•Please read carefully and thoroughly this manual before operating this unit.
•Contact a qualified sevice technician for installation, repair and maintenance of this unit.
•The appliance is not intended for use by young children or those who require supervision.
•Young children should be supervised to ensure that they do not play with the appliance.
HEAT CONTROLLER, INC.

2Room Air Conditioner
Room 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
Prior to Operation ..................8
Operating Instructions...........9
Remote Controller ..............9
Remote Control
Operation...........................11
Additional features...............18
Maintenance and Service ....22
Operation Tips ..................23
Troubleshooting ..............24

Safety Precautions
Owner's Manual 3
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
For electrical work, contact
the dealer, seller, a qualified
electrician, or an Authorized
Service Center.
• 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 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.
• Shape edges could cause injury.
Be especially careful of the sharp
edges.
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.

Safety Precautions
4Room Air Conditioner
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.
Install the indoor unit on the
wall where the height from
the floors more than 8ft(2.4m)
• There are sharp moving parts that
could cause personal injury.
Do not handle the pipe by
yourself(Costomer)
• High-Pressure refrigent may cause
personal injury.
Do not allow water to run
into electric part.
• There is risk of fire, failure of
the product, and/or electric
shock.
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 furnishings.
Do not store of use
flammable gas or
combustibles near the air
conditioner.
• There is risk of fire or product
failure.
Do not use the product in a
tightly closed space for a
long time.
• Oxygen deficiency could occur.
• Some ventilation by opening window
is necessary for the fresh air
When flammable gas leaks, turn off
the gas and open a window for
ventilation before turning the
product on. Do not use the
telephone or turn switches on or off.
• There is risk of explosion or fire.
Turn off breaker to the unit if
strange sounds odors or
smoke comes from it.
• There is risk of fire, Product faiure,
and/or electric shock.
■Operation
8ft(2.4m)
Wax
Thinner

Safety Precautions
Owner's Manual 5
Stop operation and close any
window in storm or hurricane
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.
When the product is soaked
(flooded or submerged),
contact an Authorized
Service Center.
• There is risk of electrical shock.
Ventilate the product from
time to time when operating it
together with a stove, etc.
• There is risk of fire or electrical
shock.
Turn off breaker to the
appliance before performing
cleaning or maintenance.
• There is risk of electric shock.
When the product is not be
used for a long time
disconnect the power supply
by turning 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.
• There could result in personal injury and product
damage.
Do not insert hands or other objects through
the air inlet or outlet while the air conditioner
is on.
• There are sharp and moving parts that could cause
personal injury.

Safety Precautions
6Room Air Conditioner
Do not direct airflow at room
occupants.
• This could damage 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.
Do not block the inlet or
outlet of air flow.
• It may cause product failure.
■Operation
Do not install the product
where the noise or hot air
from the outdoor unit could
offend neighbors.
• It may cause a problem for your
neighbors.
Use two or more people to lift
and transport the air
conditioner.
• Avoid personal injury.
Do not install the product
where it will be exposed to
sea wind (salt spray) directly.
• It may cause corrosion in the
product. Corrosion, particularly on
the condenser and evaporator fins,
could cause product malfunction
or inefficient operation.
Always check for
gas(refrigerant) leakage after
installation or repair of
product.
• Low refrigerant levels may cause
product failure.
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.
90°
■Installation

Safety Precautions
Owner's Manual 7
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
anything on the product.
(outdoor unit)
•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 drink the water
drained from the unit.
•It is not sanitary and could cause
serious health issues.
Use a firm stool or ladder
when cleaning or maintaining
the air conditioner.
•Be careful and avoid personal
injury.
Replace all the batteries in
the remote.
•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.
■Disuse

Prior to operation
8Room Air Conditioner
Prior to operation
1. Contact an installation specialist for installation.
2. Connect the power cable between indoor unit and outdoor unit properly.
3. Use a dedicated circuit.
1. Being exposed to direct airflow for an extended period of time could be hazardous to your health.
Do not expose occupants, pets, or plants to direct airflow for extended periods of time.
2. Do not use this air conditioner for non-specified special purposes (e.g. preserving precision devices,
food, pets, plants, and art objects). Such usage could damage the items.
1. Do not touch the metal parts of the unit when removing the filter. Injuries can occur when handling
sharp metal edges.
2. Do not use water to clean inside the air conditioner. Exposure to water can destroy the insulation,
leading to possible electric shock.
3. When cleaning the unit, first make sure that the power and breaker are turned off. There is a
possibility of injury if the unit’s power is accidentally triggered on while cleaning inner parts of the
unit.
For repair and maintenance, contact your authorized service dealer.
Preparing for operation
Usage
Cleaning and maintenance
Service
Symbols Used in this Manual
This symbol alerts you to the risk of electric shock.
This symbol alerts you to hazards that could cause harm to the
air conditioner.
This symbol indicates special notes.
NOTICE

Operating Instructions
Owner's Manual 9
Remote Controller
Operating Instructions
Storage and Tips For Using the Remote Controller
1. Remove the battery cover by pulling it according to the arrow
direction.
2. Insert new batteries making sure that the (+) and (-) of battery are
installed correctly.
3. Reattach the cover by sliding it back into position.
Use 2 AAA(1.5volt) batteries. Do not use rechargeable
batteries.
NOTICE
•The remote control may be stored mounted on a wall.
•To operate the room air conditioner, aim the remote control at the signal receptor.
•The remote control will operate the air conditioner at a distance of up to 7m(23ft).

Operating Instructions
10 Room Air Conditioner
Signal Receptor
Receives the signals from the remote controller.(Signal receiving sound: two short beeps or one long beep.)
Operation Indication Lamps
On/Off : Lights up during the system operation.
Sleep Mode : Lights up during Sleep Mode Auto operation.
Timer : Lights up during Timer operation.
Defrost Mode
Outdoor unit
operation
OUT
DOOR
: Lights up during Defrost Mode or Hot Start operation (Heat pump model only)
: Lights up during outdoor unit operation.(Cooling model only)
Desire temperature For cooling,dehumidification,heating modes it display Destired temperature
indicator •Cooling : 18°C~30°C(64°F~86°F) •AI : Auto Operation
•Dehumidification : 18°C~30°C(64°F~86°F) •Po : Jet Cool
•Heating : 16~30°C(60°F~86°F) •Lo :Test Mode
Operation indicating lamps

Operating Instructions
Owner's Manual 11
ON OFF
CANCEL
AUTO CLEAN
SET
1
3
5
4
9
10
12
14
16
7
2
8
13
11
6
Cooling Operation
Auto Operation or Auto Changeover
Healthy Dehumidification Operation
Flip-up door
(opened)
Heating Operation
Signal transmitter
• Cooling Model( ), Heat Pump Model( )
15
Operation Mode
Remote Control Operation
Controls
1. START/STOP BUTTON
Operation starts when this button is pressed
and stops when the button is pressed again.
2. OPERATION MODE
SELECTION BUTTON
Used to select the operation mode.
3. ROOM TEMPERATURE
SETTING BUTTONS
Used to select the room temperature.
4. INDOOR FAN SPEED SELECTOR
Used to select fan speed in four steps
low, medium, high and CHAOS.
5.
JET COOL
Used to start or stop the speed
cooling/heating.(speed cooling/heating
operates super high fan speed.)
6. CHAOS SWING BUTTON
Used to stop or start louver movement
and set the desired up/down airflow direction.
7. ON/OFF TIMER BUTTONS
Used to set the time of starting and stopping
operation. (See page 18)
8. TIME SETTING BUTTONS
Used to adjust the time. (See page 18)
9. TIMER SET/CANCEL BUTTON
Used to set the timer when the desired time is
obtained and to cancel the Timer operation.
(See page 18)
10. SLEEP MODE AUTO BUTTON
Used to set Sleep Mode Auto operation.
(See page 18)
11. AIR CIRCULATION BUTTON
Used to circulate the room air without cooling
or heating. (See page 19)
12. ROOM TEMPERATURE CHECKING
BUTTON
Used to check the room temperature.
13. RESET BUTTON
Used prior to resetting time.
14. 2nd F Button
Used prior to using modes printed in blue at
the bottom of buttons. (See page 17)
15. AUTO CLEAN
Used to set Auto Clean mode.
16. ˚C TO ˚F SWITCHING BUTTON
Used to switch temperature reading from
Centigrade to Fahrenheit.
(Heat Pump)
(Cooling Only)

Operating Instructions
12 Room Air Conditioner
ON
Cooling Healthy
Dehumidification
Auto Heating
(Heat pump model only)
To lower the temperature
To raise the temperature
(Cooling Only
model) (Heat Pump model)
Open the door on the Remote Controller. To select Cooling
Operation, press the Operation Mode Selection button.
Each time the button is pressed, the operation mode is shifted
in the direction of the arrow.
Set the temperature lower than the room temperature.
The temperature can be set within a range of
18°C~30°C(64°F~86°F) in 1°C(2°F) .
You can select the fan speed in four steps-
low, medium, high, or CHAOS. Each time the
button is pressed, the fan speed mode is
shifted.
Cooling Operation
Natural wind by the CHAOS logic
❏For more fresh feeling, press the Indoor Fan Speed Selector and set CHAOS mode. In this mode, the wind
blows like natural breeze by automatically changing fan speed according to the CHAOS logic.
Press the Start/Stop button.
The unit will respond with beep sound.
1
2
3
4

Operating Instructions
Owner's Manual 13
ON
Cooling Healthy
Dehumidification
Auto Heating
(Heat pump model only)
To lower the temperature
To raise the temperature
(Cooling Only
model) (Heat Pump model)
Press the Start/Stop button.
The unit will respond with beep
sound.
Open the door on the Remote Controller. To select Auto
Operation, press the Operation Mode Selection button.
Each time the button is pressed, the operation mode is
shifted in the direction of the arrow.
The temperature and fan speed are automatically set by the
electronic controls based on the actual room temperature. If
you want to change the set temperature, press the Room
Temperature Setting buttons. The set temperature will be
changed considering room temperature.
DURING AUTO OPERATION:
❏You cannot switch the indoor fan speed. It has already been set by the Fuzzy rule.
❏If the system is not operating as desired, manually switch to another mode. The system will not
automatically switch from the cooling mode to the heating mode, or from heating to cooling, then you must
set the mode and the desired temperature again.
❏During Auto Operation, pressing the chaos swing button makes the horizontal louvers swing up and down
automatically. If you want to stop auto-swing, press the chaos swing button again.
Auto Operation
1
2
3

Operating Instructions
14 Room Air Conditioner
ON
Cooling Healthy
Dehumidification
Auto Heating
(Heat pump model only)
(Cooling Only
model) (Heat Pump model)
Press the Start/Stop button.
The unit will respond with beep
sound.
Open the door on the Remote Controller. To select Healthy
Dehumidification Operation, press the Operation Mode
Selection button.
Each time the button is pressed, the operation mode is shifted
in the direction of the arrow.
Set the fan speed. You can select the fan
speed in four steps - low, medium, high, or
CHAOS. Each time the button is pressed,
the fan speed mode is shifted.
DURING HEALTHY DEHUMIDIFICATION OPERATION:
❏If you select the dehumidification mode on the operation selection button, the A/C starts to run the
dehumidification function, automatically setting the room temp. and air volume to the best condition for
dehumidification based on the sensed room temp.
In this case, the setting temp. is not displayed in the Remote Controller and you are not able to control
the room temp. either.
❏During the healthy dehumidification function, the air volume is automatically set according to the
algorithm responding to the current room temp. and makes the room condition healthy and
comfortable even in the high humidity season.
Healthy Dehumidification Operation
NATURAL WIND BY THE CHAOS LOGIC
❏For more fresh feeling, press the Indoor Fan Speed Selector and set
CHAOS mode. In this mode, the wind blows like natural breeze by
automatically changing fan speed according to the CHAOS logic.
1
2
3

Operating Instructions
Owner's Manual 15
ON
Cooling Healthy
Dehumidification
Auto Heating
(Heat pump model only)
To lower the temperature
To raise the temperature
Press the Start/Stop button.
The unit will respond with
beep sound.
Open the door on the Remote Controller. To select Heating
Operation, press the Operation Mode Selection button.
Each time the button is pressed, the operation mode is
shifted in the direction of the arrow.
NATURAL WIND BY THE CHAOS LOGIC
❏For more fresh feeling than other fan speed, press the Indoor Fan Speed Selector and set to CHAOS
mode. In this mode, the wind blows like natural breeze by automatically changing fan speed according to
the CHAOS logic.
1
2
Set the temperature higher than the room temperature.
The temperature can be set within a range
of16°C~30°C(60°F~86°F) in 1°C(2°F).
Set the fan speed again. You can
select the fan speed in four steps–low,
medium, high, or CHAOS. Each time
the button is pressed, the fan speed
mode is shifted.
3
4
Heating Operation(Heat pump model only)

Operating Instructions
16 Room Air Conditioner
or or
Press the Start/Stop button.
The unit will respond with
beep sound.
Press the Jet Cool button to operate the
speed cooling/heating mode and the unit
will operate in super high fan speed on
cooling/heating mode for 30/60 minutes.
To cancel the Jet Cool mode, press the Jet Cool button or
the fan button or the room temperature setting button again
and the unit will operate in high fan speed in cooling/heating
mode
1
2
3
❏Jet Cool function in heating mode is available on Artcool type only.
❏During the JET COOL function at any moment, the A/C starts to blow the cool/heat air at
extremely high speed for 30/60 minutes setting the room temp. automatically to
18°C/30°C(64°F/86°F). It is especially used to cool/heat the room temperature in the shortest
time.
❏In order to return to the normal cooling/heating mode from the Jet Cool mode, you just press
either the operation mode selection button, air volume selection or temp. setting button or the
JET COOL button again.
NOTICE
Jet Cool

Operating Instructions
Owner's Manual 17
ON OFF
CANCEL
SET
AUTO CLEAN
AUTO CLEAN
ON OFF
CANCEL
SET
2nd F Operation
Press the Start/Stop button.
The unit will respond with
beep sound.
Open the door of the Remote Controller and press the 2nd F
button to operate functions printed in blue at bottom of
buttons.
(Check the indication of 2nd function on Remote Controller
display.)
These buttons operate the timer setting as follows:
2nd function goes off in a short time automatically or when the
button is pressed again.
For more details, refer to functions next page.
1
2
3

Sleep Mode
Setting the Time
Delay Start/Pre-Set Stop
Delay OFF Timer Delay ON Timer Delay OFF and ON Timer Delay ON and OFF Timer
1. Press the Sleep Mode Auto button to set the time
you want the unit to turn off automatically.
2. The Timer is programmed in one-hour increments
by pressing the Sleep Mode Auto button 1 to 7
times.
The sleep mode is available for 1 to 7 times.
To alter the time period in steps of 1 hour, press
the Sleep Mode Button while aiming at air
conditioner.
3. Make sure the Sleep Mode Auto LED lights up.
To cancel the Sleep Mode, press the sleep
Mode Auto button several times until the star
( ) disappears from the operation display.
The Sleep Mode will be operated at
low fan speed (cooling) or medium fan speed
(heat pump only) for quiet sleeping.
IN COOLING MODE: The temperature will
automatically rise by 1°C (2°F) over the next 30
minutes and by 2°C (4°F) in 1 hour for
comfortable sleeping.
NOTICE
1. Time can be set only when you have pressed the
Reset button. If you have just replaced the batteries,
the Reset button should be pressed to reset the
time.
Press the Start/Stop button.
2. Press the Time Setting buttons until the desired time
is set.
3. Press the Timer SET button.
Check the indicator for A.M. and P.M.
NOTICE
1. Make sure the time is set correctly on the Remote
Controller display.
2. Press the ON/OFF Timer
buttons to turn Timer on or off.
3. Press the Time Setting
buttons until the desired
time is set.
4. Press the selected on/off setting by
pressing the Timer SET button while
aiming the Remote Controller at the
signal receptor.
To cancel the setting the timer.
Press the Timer Cancel button while aiming
Remote Controller at the signal receptor.
(The timer lamp on the air conditioner and the
display will go out.)
Select one of the following four types of operation.
NOTICE
with the unit running
ON OFF
CANCEL
Additional features
SET
CANCEL
SET
Additional features
18 Room Air Conditioner

Additional features
Owner's Manual 19
Vertical Airflow Direction Control
The up/down airflow (Vertical Airflow) can be adjusted
by using the remote control.
Press the Start/Stop button to start the unit.
Open the door on the remote control.
Press Chaos Swing button and the louvers will swing up
and down. Press the Chaos Swing button again to set
the vertical louver at the desired airflow direction.
❏If you press the CHAOS swing button, the horizontal airflow
direction is changed automatically based on the CHAOS
algorithm to distribute the air in the room evenly and at the
same time to make the human body feel most comfortable,
as if enjoying a natural breeze.
❏Always use the remote control to adjust the up/down airflow
direction. Manually moving the vertical airflow direction
louver by hand could damage the air conditioner.
❏When the unit is shut off, the up/down airflow direction louver
will close the air outlet vent of the system.
NOTICE
Air Circulation Mode
Circulates the room air without cooling or heating.
1. Press the Start/Stop button. the unit will respond with a beep.
2. Open the door on the remote control. Press the Air Circulation button. Close the door on the remote control. Now
each time that you press the Indoor Fan Speed Selector, the fan speed is shifted from low to CHAOS and back
to low again.
❏CHAOS Air economizes power consumption and prevents overcooling. The fan speed is automatically
changed from high to low or vice versa, depending on the ambient temperature.
NOTICE
Fan speed is on low. Fan speed is on medium. Fan speed is on high.CHAOS Air

Additional features
20 Room Air Conditioner
Heat pump Model
Cooling Model
Room Temp. ≥24°C(76°F) 21°C(70°F) ≤Room Temp. < 24°C(76°F) Room Temp. < 21°C(70°F)
Operating mode Cooling Cooling Healthy Dehumidification Heating
Indoor FAN Speed High High High High
Setting Temperature 22°C(72°F) 22°C(72°F) 23°C(74°F) 24°C(76°F)
ON/OFF
button
The operation will be started operation if the power button is pressed without remote controller.
If you want to stop operation, re-press the button.
Forced Operation
AUTO CLEAN
❏During Auto Clean function, moistures left in indoor units after Cooling Operation or Healthy
Dehumidification Operation can be removed.
❏During Auto Clean function, only Start/Stop button, Plasma button and AUTO CLEAN button are
available.
NOTICE
Auto clean
1. Whenever you press the AUTO CLEAN button, Auto Clean Function will be selected
or cancelled.
2. Auto Clean function works before and after cooling or dehumidification mode. For
details, refer to the below points.
3. When the unit is started after selecting Auto Clean ,the Cool Start function operates
and indoor Fan is started after 20 seconds.
4. When you press Start/Stop button to turn off the unit after the you have selected
Auto Clean function, the air-conditioner circulates the indoor air in the Auto Clean
mode with no more Cooling or Dehumidification operation. It lasts for 30 minutes.
5. If you press the AUTO CLEAN button again during the product operation , Auto
Clean function will be cancelled.