HEAT CONTROLLER, INC.
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.
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
For electrical work, contact
the dealer, seller, a qualified
electrician, or an Authorized
Service Center.
Install the panel and the
cover of control box securely.
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 or electric
shock.
• There is risk of fire, electric shock,
explosion or injury.
Be cautious when unpacking
and installing the product.
For installation, always
contact the dealer or an
Authorized Service Center.
Do not install the product on
a defective installation stand.
• Shape edges could cause injury.
Be especially careful of the sharp
edges.
• There is risk of fire, electric shock,
explosion, or injury.
• 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.
Install the indoor unit on the
wall where the height from
the floors more than 8ft(2.4m)
Do not handle the pipe by
yourself(Costomer)
• If the base collapses, the air
conditioner could fall with it,
causing property damage, product
failure, and personal injury.
• There are sharp moving parts that
could cause personal injury.
• High-Pressure refrigent may cause
personal injury.
8ft(2.4m)
■ Operation
Do not allow water to run
into electric part.
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.
Do not store of use
flammable gas or
combustibles near the air
conditioner.
• Moisture may condense and wet or
damage furnishings.
• There is risk of fire or product
failure.
• There is risk of fire, failure of
the product, and/or electric
shock.
Do not use the product in a
tightly closed space for a
long time.
When flammable gas leaks, turn off
the gas and open a window for
ventilation before turning the
product on. Do not use the
Turn off breaker to the unit if
strange sounds odors or
smoke comes from it.
telephone or turn switches on or off.
• Oxygen deficiency could occur.
•
There is risk of fire, Product faiure,
and/or electric shock.
• There is risk of explosion or fire.
•
Some ventilation by opening window
is necessary for the fresh air
4 Room Air Conditioner
Safety Precautions
Stop operation and close any
window in storm or hurricane
before the hurricane arrives.
Do not open the inlet grill of
the product during operation.
(Do not touch the
electrostatic filter, if the unit
is so equipped.)
When the product is soaked
(flooded or submerged),
contact an Authorized
Service Center.
• There is risk of property damage,
failure of product, or electric
shock.
• There is risk of physical injury,
electric shock, or product.
• There is risk of electrical shock.
Ventilate the product from
time to time when operating it
together with a stove, etc.
Turn off breaker to the
appliance before performing
cleaning or maintenance.
When the product is not be
used for a long time
disconnect the power supply
by turning off the breaker.
• There is risk of fire or electrical
shock.
• There is risk of product damage or
failure, or unintended operation.
• There is risk of electric shock.
Take care to ensure that nobody could step on
or fall onto the outdoor unit.
Do not insert hands or other objects through
the air inlet or outlet while the air conditioner
is on.
• There could result in personal injury and product
damage.
• There are sharp and moving parts that could cause
personal injury.
Owner's Manual 5
Safety Precautions
■ Installation
Always check for
Install the drain hose to
ensure that water is drained
away properly.
Keep level even when
installing the product.
gas(refrigerant) leakage after
installation or repair of
product.
• Low refrigerant levels may cause
product failure.
• A bad connection may cause
water leakage.
• To avoid vibration or water
leakage.
90°
Do not install the product
where the noise or hot air
from the outdoor unit could
offend neighbors.
Use two or more people to lift
and transport the air
conditioner.
Do not install the product
where it will be exposed to
sea wind (salt spray) directly.
• Avoid personal injury.
• It may cause a problem for your
neighbors.
• It may cause corrosion in the
product. Corrosion, particularly on
the condenser and evaporator fins,
could cause product malfunction
or inefficient operation.
■ Operation
Do not direct airflow at room
occupants.
Do not use the product for
special purposes, such as
preserving foods, works of art,
etc. It is a consumer air
Do not block the inlet or
outlet of air flow.
conditioner, not a precision
refrigeration system.
• There is risk of damage or loss of
property.
• This could damage your health.
• It may cause product failure.
6 Room Air Conditioner
Safety Precautions
Use a soft cloth to clean.
Do not use harsh detergents,
solvents, etc.
Do not touch the metal parts
of the product when
removing the air filter. They
are very sharp!
Do not step on or put
anything on the product.
(outdoor unit)
• There is risk of fire, electric shock
or damage to the plastic parts of
the product.
• There is risk of personal injury and
failure of product.
• There is risk of personal injury.
Always insert the filter
securely. Clean the filter
every two weeks or more
often if necessary.
Do not drink the water
drained from the unit.
Use a firm stool or ladder
when cleaning or maintaining
the air conditioner.
• It is not sanitary and could cause
serious health issues.
• Be careful and avoid personal
injury.
• A dirty filter reduces the efficiency
of the air conditioner and could
cause product malfunction or
damage.
■ Disuse
Replace all the batteries in
the remote.
Do not recharge or
disassemble the batteries. Do
not dispose of batteries in a
fire.
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.
• There is risk of fire or explosion.
• They may burn or explode.
• The chemicals in batteries could
cause burns or other health
hazards.
Owner's Manual 7
Prior to operation
Prior to operation
Preparing for 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.
Usage
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.
Cleaning and maintenance
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.
Service
For repair and maintenance, contact your authorized service dealer.
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.
NOTICE
This symbol indicates special notes.
8 Room Air Conditioner
Operating Instructions
Operating Instructions
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.
NOTICE
Use 2 AAA(1.5volt) batteries. Do not use rechargeable
batteries.
Storage and Tips For Using the Remote Controller
• 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).
Owner's Manual 9
Operating Instructions
Signal Receptor
Receives the signals from the remote controller.(Signal receiving sound: two short beeps or one long beep.)
Operation indicating lamps
Operation Indication Lamps
On/Off
Sleep Mode : Lights up during Sleep Mode Auto operation.
Timer : Lights up during Timer operation.
Defrost Mode: Lights up during Defrost Mode or Hot Start operation (Heat pump model only)
: Lights up during the system operation.
OUT
DOOR
Outdoor unit
operation
: Lights up during outdoor unit operation.(Cooling model only)
Desire temperature For cooling,dehumidification,heating modes it display Destired temperature
indicator
• Cooling
• Dehumidification : 18°C~30°C(64°F~86°F)
• Heating : 16~30°C(60°F~86°F)
: 18°C~30°C(64°F~86°F)
• AI : Auto Operation
• Po : Jet Cool
• Lo : Test Mode
10 Room Air Conditioner
Operating Instructions
Remote Control Operation
Controls
1. START/STOP BUTTON
Operation starts when this button is pressed
and stops when the button is pressed again.
Signal transmitter
2. OPERATION MODE
SELECTION BUTTON
(Cooling Only)
(Heat Pump)
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
6
1
3
5. JET COOL
Used to start or stop the speed
cooling/heating.(speed cooling/heating
operates super high fan speed.)
4
10
2
7
6. CHAOS SWING BUTTON
Used to stop or start louver movement
and set the desired up/down airflow direction.
CANCEL
9
ON
OFF
SET
AUTO CLEAN
12
11
8
7. ON/OFF TIMER BUTTONS
Used to set the time of starting and stopping
operation. (See page 18)
15
16
14
13
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)
Flip-up door
(opened)
10. SLEEP MODE AUTO BUTTON
Used to set Sleep Mode Auto operation.
(See page 18)
Operation Mode
Cooling Operation
11. AIR CIRCULATION BUTTON
Used to circulate the room air without cooling
or heating. (See page 19)
Auto Operation or Auto Changeover
Healthy Dehumidification Operation
12. ROOM TEMPERATURE CHECKING
BUTTON
Used to check the room temperature.
Heating Operation
13. RESET BUTTON
Used prior to resetting time.
•
Cooling Model( ), Heat Pump Model(
)
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.
Owner's Manual 11
Operating Instructions
Cooling Operation
Press the Start/Stop button.
The unit will respond with beep sound.
1
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.
2
Cooling
Auto
Healthy
Dehumidification
Heating
(Heat pump model only)
(Cooling Only (Heat Pump
model)
model)
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) .
3
ON
To raise the temperature
To lower the temperature
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.
4
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.
12 Room Air Conditioner
Operating Instructions
Auto Operation
Press the Start/Stop button.
The unit will respond with beep
sound.
1
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.
2
Cooling
Auto
Healthy
Dehumidification
Heating
(Heat pump model only)
(Cooling Only (Heat Pump
model)
model)
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.
ON
3
To raise the temperature
To lower the 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.
Owner's Manual 13
Operating Instructions
Healthy Dehumidification Operation
Press the Start/Stop button.
The unit will respond with beep
sound.
1
2
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.
Cooling
Auto
Healthy
Heating
Dehumidification (Heat pump model only)
(Cooling Only (Heat Pump
model)
model)
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.
3
ON
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.
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.
14 Room Air Conditioner
Operating Instructions
Heating Operation(Heat pump model only)
Press the Start/Stop button.
The unit will respond with
beep sound.
1
2
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.
Cooling
Auto
Healthy
Heating
Dehumidification (Heat pump model only)
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).
3
4
ON
To raise the temperature
To lower the temperature
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.
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.
Owner's Manual 15
Operating Instructions
Jet Cool
Press the Start/Stop button.
The unit will respond with
beep sound.
1
2
3
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
or
or
NOTICE
■ 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.
16 Room Air Conditioner
Operating Instructions
2nd F Operation
Press the Start/Stop button.
The unit will respond with
beep sound.
1
2
Open the door of the Remote Controller and press the 2nd
button to operate functions printed in blue at bottom of
buttons.
F
(Check the indication of 2nd function on Remote Controller
display.)
These buttons operate the timer setting as follows:
CANCEL
SET
ON
OFF
AUTO CLEAN
CANCEL
ON
OFF
SET
AUTO CLEAN
2nd function goes off in a short time automatically or when the
button is pressed again.
3
For more details, refer to functions next page.
Owner's Manual 17
Additional features
Additional features
Sleep Mode
1. Press the Sleep Mode Auto button to set the time
you want the unit to turn off automatically.
To cancel the Sleep Mode, press the sleep
Mode Auto button several times until the star
(
) disappears from the operation display.
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.
NOTICE
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.
3. Make sure the Sleep Mode Auto LED lights up.
Setting the Time
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.
2. Press the Time Setting buttons until the desired time
is set.
CANCEL
Press the Start/Stop button.
3. Press the Timer SET button.
SET
NOTICE
Check the indicator for A.M. and P.M.
Delay Start/Pre-Set Stop
1. Make sure the time is set correctly on the Remote
Controller display.
SET
4. Press the selected on/off setting by
pressing the Timer SET button while
aiming the Remote Controller at the
signal receptor.
ON
OFF
2. Press the ON/OFF Timer
buttons to turn Timer on or off.
To cancel the setting the timer.
CANCEL
3. Press the Time Setting
buttons until the desired
time is set.
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.)
NOTICE
Select one of the following four types of operation.
with the unit running
Delay OFF Timer
Delay ON Timer
Delay OFF and ON Timer
Delay ON and OFF Timer
18 Room Air Conditioner
Additional features
Vertical Airflow Direction Control
The up/down airflow (Vertical Airflow) can be adjusted
by using the remote control.
NOTICE
■ 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.
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.
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
Fan speed is on low. Fan speed is on medium. Fan speed is on high.
NOTICE
■ 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.
Owner's Manual 19
Additional features
Auto clean
1. Whenever you press the AUTO CLEAN button, Auto Clean Function will be selected
or cancelled.
AUTO CLEAN
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.
NOTICE
■ 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.
Forced Operation
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.
ON/OFF
button
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
Indoor FAN Speed
Setting Temperature
Cooling
High
Cooling
Healthy Dehumidification
Heating
High
High
High
22°C(72°F)
22°C(72°F)
23°C(74°F)
24°C(76°F)
20 Room Air Conditioner
Maintenance and Service
Auto restart
In case the power comes on again after a power failure, the unit operates automatically to the previous
operating conditions.
So there is no need of activating this function by pressing any key or button.
In the initial mode, the fan operates at a low speed and the compressor starts about 3 minutes later.
As the compressor starts, the fan speed also resumes its previous setting mode.
In case of absence for a long time while power failure, turn off main power to avoid
undersired Auto restart.
NOTICE
This feature is enabled by factory default setting, but you can disable it by
pressing the ON/OFF button for 6 seconds. The unit will beep twice and the
indicator lamp(2) will blink 4 times.
To enable it, press the button again for 6 seconds. The unit will beep twice
and the indicator lamp(1) will blink 4 times.
ON/OFF
button
Helpful information
Fan speed and cooling capacity.
The cooling/heating capacity indicated in the specification is the value
when the fan speed is set to high, and the capacity will be lower at
low or medium fan speed.
High
High fan speed is recommended when you wish to cool/heat the room
quickly.
Speed
Owner's Manual 21
Maintenance and Service
Maintenance and Service
CAUTION: Before performing any maintenance, turn off the main power to the system.
Indoor Unit
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.
■
Never use any of the followings:
• Water hotter than 40°C(104°F)
Could cause deformation and/or
discoloration.
• Volatile substances
Could damage the surfaces of the air
conditioner.
NOTICE
Supply power must be disconnected
before cleaning the indoor unit.
P
o
w
d
e
r
G
a
e
n
s
o
l
i
Air filters
Air outlet vent
Air inlet vent
(behind front panel)
Vertical louver Horizontal louver
AIR FILTERS
The air filters behind the front grille should be checked
and cleaned once in every 2 weeks or more often if
neccessary.
1. Lift the front access panel and pull the filter tab
slightly forward to remove the filter.
2. Clean the filter with a vacuum cleaner or warm,
soapy water.
• If dirt is conspicuous, wash with a solution of
detergent in lukewarm water.
• If hot water (40°C (104°F)or more) is used, it
may be deformed.
3. After washing with water, dry well in the shade.
4. Re-install the air filter.
TRIPLE DEODORIZER filter
1. After removing the air filters, pull slightly forward to
remove the TRIPLE DEODORIZING filter.
2. Dry in the sunlight for two hours.
3. Re-install the TRIPLE DEODORIZING filter to the
original position.
TRIPLE
DEODORIZING
Filter
22 Room Air Conditioner
Maintenance and Service
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.
When the air conditioner is to be used again.
1. Clean the air filter and install it in the indoor
unit.
(Refer to page 22 for cleaning filters.)
1. Operate the air conditioner on Air circulation
mode (Refer to page 19) for 2 to 3 hours.
• This will dry out the internal mechanisms.
2. Turn off the circuit breaker, and disconnect
the power cable.
2. Check that the air inlet and outlet of the
indoor/outdoor unit are not blocked.
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.
3. Remove the batteries from the Remote
Controller.
Operation Tips
Do not overcool the room.
Keep blinds or curtains
closed.
Keep the room temperature
uniform.
This is not good for the health
and wastes electricity.
Do not let direct sunshine enter
the room when the air
conditioner is in operation.
Adjust the vertical and
horizontal airflow direction to
ensure a uniform temperature in
the room.
Make sure that the doors
and windows are shut tight.
Clean the air filter regularly.
Ventilate the room
occasionally.
Avoid opening doors and
windows if possible to keep the
cool air in the room.
Blockages in the air filter reduce
the airflow and lower cooling
and dehumidifying effects.
Clean at least once every two
weeks.
Since windows are kept closed,
it is a good idea to open them
and ventilate the room now and
then.
Owner's Manual 23
Maintenance and Service
Troubleshooting
Check the following points before requesting repairs or service.... If the fault persists, please contact your dealer or service center.
Case
Explanation
See page
12, 15
-
The air conditioner does not
operate.
• Check room temperature setting?
• Check if circuit breaker is on?
The room has a peculiar
odor.
• Check that this is not a damp smell exuded by
the walls, carpet, furniture, or cloth items in the
room.
-
-
It seems that condensation
is leaking from the air
conditioner.
• Check the drain hose is connected tight or if
indoor unit is installed even.
Air conditioner does not
operate for about 3 minutes
after turning on.
• This is the protector of the mechanism.
• Wait about 3 minutes and operation will begin.
• About 3 minutes delay is applied to protect
compressor from frequenty on/off.
-
Does not cool or heat
effectively.
• Is the air filter dirty? See air filter cleaning
instructions.
22
12, 15
-
• Has the temperature been set correctly?
• Are the indoor unit's air inlet or outlet vents
obstructed?
The air conditioner
operation is noisy.
• For a noise that sounds like water flowing.
-This is the sound of refrigerant 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.
Remote Controller display is
faint, or no display at all.
• Are the batteries depleted?
• Are the batteries inserted in the opposite (+)
and (-) directions?
9
-
Crack sound is heard.
• This sound is generated by the
expansion/constriction of the front panel, etc.
due to changes of temperature.
24 Room Air Conditioner
Specifications and performance data subject to change without notice.
HEAT CONTROLLER, INC.
1900 WELLWORTH AVENUE • JACKSON, MICHIGAN 49203
THE QUALITY LEADER IN CONDITIONING AIR
P/No.: 3828A22236C
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