Heat Controller Inc Air Conditioner VMC18SB 1 User Manual

HEAT CONTROLLER, INC.  
Wall Mounted  
Mini-Split System  
VMC09SB-1  
VMC12SB-1  
VMC18SB-1  
VMC24SB-1  
This Product meets ENERGY STAR  
requirements when appropriate coil  
components are used. Ask your  
contractor for details  
Inverter Single-Zone  
AirConditioning  
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 injury to the user or other people and property damage, the following instructions must be followed.  
I Incorrect operation due to ignoring instructions 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.  
I Meanings of symbols used in this manual are as shown below.  
Be sure not to do.  
Be sure to follow the instruction.  
Always use a power plug and socket with  
a ground terminal.  
Do not use a defective or underrated  
circuit breaker. Use the correctly rated  
breaker and fuse.  
Do not use a multi consent. Always use  
this appliance on a dedicated cicuit and  
breaker.  
There is a risk of electric shock.  
There is risk of fire or electric shock .  
Otherwise it can cause electric shock or fire.  
For electrical work, contact the dealer, seller,  
a qualified electrician, or an Authorized  
Service Center. Do not disassemble or repair  
the product by yourself.  
Always ground the product as per the  
wiring diagram. Do not connect the  
ground wire to gas or water pipes  
lightening rod or telephone ground wire.  
Install the panel and the cover of control  
box securely.  
There is risk of fire or electric shock.  
There is risk of fire or electric shock.  
There is risk of fire or electric shock due to  
dust , water etc.  
Use the correctly rated breaker or fuse.  
Do not modify or extend the power cable.  
If the power cable or cord has scrathes or  
skin peeled off or deteriorated then it  
must be replaced.  
For installation, removal or reinstall ,  
always contact the dealer or an  
Authorized Service Center.  
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.  
Do not install the product on a defective  
installation stand. Be sure that the  
installation area does not deteriorate with  
age.  
Never install the outdoor unit on a  
moving base or a place from where it  
can fall down.  
When the product is soaked (flooded or  
submerged) in water , contact an  
Authorized Service Center for repair  
before using it again.  
It may cause product to fall.  
The falling outdoor unit can cause damage or  
There is risk of fire or eletric shock.  
injury or even death of a person.  
In outdoor unit the step-up capacitor  
supplies high voltage electricity to the  
electrical components. Be sure to  
discharge the capacitor completely  
before conducting the repair work.  
When installing the unit, use the  
installation kit provided with the product.  
Be sure to use only those parts which  
are listed in the svc parts list. Never  
attempt to modify the equipment.  
An charged capacitor can cause electrical  
Otherwise the unit may fall and cause severe  
The use of inappropriate parts can cause an  
shock.  
injury.  
electrical shock, excessive heat generation or fire.  
Owner's Manual  
3
Safety Precautions  
Indoor/outdoor wiring connections must  
be secured tightly and the cable should  
be routed properly so that there is no  
force pulling the cable from the  
connection terminals.  
Safely dispose of packing materials,  
sharp objects (nails), plastic bags,  
batteries, etc. after installation or service.  
Make sure to check that the power cable  
plug is not dirty, loose or broken and  
then only insert the plug completely.  
Improper or loose connections can cause  
Children may play with them and cause  
Dirty, loose or broken power plug can cause  
heat generation or fire.  
injury.  
electric shock or fire.  
Please use the correct refrigerant type  
specified for the product. Please read the  
label on the product.  
Don't use a power cord, a plug or a loose  
socket which is damaged.  
Do not touch , operate, or repair the  
product with wet hands. Hold the plug by  
hand when taking out  
Incorrect refrigerant used can prevent the  
Otherwise it may cause a fire or electrical  
There is risk of electric shock or fire.  
normal operation of the unit.  
shock.  
Do not place a heater or other heating  
appliances near the power cable.  
Do not allow water to run into electric  
parts. Install the unit away from water  
sources.  
Do not store or use or even allow  
flammable gas or combustibles near the  
product.  
There is risk of fire and electric shock.  
There is risk of fire, failure of the product, or  
There is risk of fire.  
electric shock.  
Do not use the product in a tightly closed  
space for a long time. Ventilate the room  
regularly.  
Do not open the front grille of the product  
during operation. (Do not touch the  
electrostatic filter, if the unit is so equipped.)  
If strange sounds, smell or smoke comes  
from product.Immediately turn the breaker  
off or disconnect the power supply cable.  
Oxygen deficiency could occur and hence  
There is risk of physical injury, electric shock,  
There is risk of electric shock or fire.  
harm your health.  
or product failure.  
Ventilate the product room from time to  
time when operating it together with a  
stove, or heating element etc.  
Turn the main power off and unplug the  
unit when cleaning or repairing the  
product.  
When the product is not to be used for a  
long time, disconnect the power supply  
plug or turn off the breaker.  
Oxygen deficiency can occur and hence harm  
There is risk of electric shock.  
There is risk of product damage or failure, or  
your health.  
unintended operation.  
Take care to ensure that nobody  
especially kids could step on or fall onto  
the outdoor unit.  
Take care to ensure that power cable  
could not be pulled out or damaged  
during operation.  
Do not place ANYTHING on the power  
cable.  
This could result in personal injury and  
There is risk of fire or electric shock.  
There is risk of fire or electric shock.  
product damage.  
Do not plug or unplug the power supply plug to turn the unit  
ON/OFF .  
When flammable gas leaks, turn off the gas and open a window  
for ventilation before turn the product on.  
There is risk of fire or electric shock.  
Do not use the telephone or turn switches on or off. There is risk of  
explosion or fire.  
Two or more people must lift and  
transport the product.  
Do not install the product where it will be  
exposed to sea wind (salt spray) directly.  
Install the drain hose to ensure that the  
condensed water is drained away properly.  
Avoid personal injury.  
It may cause corrosion on the product.  
A bad connection may cause water leakage.  
Keep level even when installing the  
product.  
Do not install the product where the noise  
or hot air from the outdoor unit could  
damage or disturb the neighbor.  
Always check for gas (refrigerant)  
leakage after installation or repair of  
product.  
To avoid vibration or noise.  
It may cause a problem for your neighbors  
Low refrigerant levels may cause failure of  
and hence dispute.  
product.  
4
Room Air Conditioner  
Safety Precautions  
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.  
Do not block the inlet or outlet of air flow.  
Use a soft cloth to clean. Do not use  
harsh detergents, solvents or splashing  
water etc .  
There is risk of damage or loss of property.  
It may cause product failure.  
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.  
Do not step on or put anyting on the  
product. (outdoor units)  
Always insert the filter securely after  
cleaning. Clean the filter every two weeks  
or more often if necessary.  
There is risk of personal injury.  
There is risk of personal injury and failure of  
A dirty filter reduces the efficiency.  
product.  
Do not insert hands or other objects  
through the air inlet or outlet while the  
product is operating.  
Be cautious when unpacking and  
installing the product.  
If the refrigerant gas leaks during the  
repair, ventilate the area and do not touch  
the refrigerant gas.  
There are sharp and moving parts that could  
Sharp edges could cause injury.  
The refrigerant gas can cause frostbite (cold  
cause personal injury.  
burn)  
Do not tilt the unit when removing or  
uninstalling it.  
Do not mix air or gas other than the  
specified refrigerant used in the system .  
If the refrigerant gas leaks during the  
installation, ventilate the area immediately.  
The condensed water inside can spill .  
If air enters the refrigerant system, an  
excessively high pressure results, causing  
equipment damage or injury.  
Otherwise it can be harmfull for your health.  
Dismantling the unit, treatment of the  
refrigerant oil and eventual parts should  
be done in accordance with local and  
national standards.  
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.  
Do not recharge or disassemble the  
batteries. Do not dispose off batteries in  
a fire.  
There is risk of fire or product failure.  
They may burn or explode.  
If the liquid from the batteries gets onto  
your skin or clothes, rinse well with  
water and contact your doctor or local  
poison control center. Do not use the  
remote if the batteries have leaked.  
If you consume the liquid from the  
batteries, rinse your mouth with water  
and contact your doctor or local poison  
control center. Do not use the remote if  
the batteries have leaked.  
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.  
The chemicals in batteries could cause burns  
The chemicals in batteries could cause burns  
Moisture may condense and wet or damage  
or other health hazards.  
or other health hazards.  
furniture.  
Humans, pets, and plants should avoid  
direct exposure to the cool or hot air  
discharge/draft.  
Do not drink the water drained from the  
product.  
Use a firm stool or ladder when cleaning,  
maintaining or repairing the product at  
elevated heights.  
This could harm to your health.  
It is not sanitary and could cause serious  
Be careful and avoid personal injury.  
health issues.  
Owner's Manual  
5
Electrical Safety  
Electrical Safety  
This appliance must be properly grounded.  
To minimize the risk of electric shock, you must alway plug into a grounded oulet.  
Do not cut or remove the grounding prong from the power plug.  
Attaching the adapter ground terminal to the wall receptacle cover screw does not ground the appliance  
unless the cover screw is metal and not insulated, and the wall receptacle is grounded through the  
house wiring.  
If you have any doubt whether the air conditioner is properly grounded, have the wall receptacle and  
circuit checked by a qualified electrician.  
Temporary Use of an Adapter  
We strongly discourage the use of an adapter due to potential safety hazards. For temporary connections,  
use only a genuine adapter, available from most local hardware stores. Ensure that the large slot in the  
adapter is aligned with the large slot in the receptacle for a proper polarity connection.  
To disconnect the power cord from the adapter, use one hand on each to avoid damaging the ground  
terminal. Avoid frequently unplugging the power cord as this can lead to eventual ground terminal damage.  
Never use the appliance with a broken adapter.  
Symbols used in this Manual  
This symbol alerts you to the risk of electric shock.  
This symbol alerts you to hazards that may cause harm to the  
air conditioner.  
This symbol indicates special notes.  
NOTE  
6
Room Air Conditioner  
Product Introduction  
Product Introduction  
Here is a brief introduction of the indoor and outdoor units. Please see the information specific to your  
indoor unit type.  
Indoor Units  
Air inlet  
Grille tab  
Deodorizer  
Front grille  
filter  
ON/OFF button  
Air filter  
Signal  
receiver  
Flap  
Air outlet  
Louvers  
(Vertical blades)  
(Horizontal blade)  
Operation Indication Lamps  
: Lights up during the system operation, error code and auto restart setting.  
On/Off  
Sleep mode : Lights up during sleep mode auto operation.(non-Inverter Model)  
: Lights up during timer operation.(non-Inverter Model)  
Timer  
Lights up during timer operation or sleep mode auto operation (Inverter Model only)  
Outdoor unit  
operation  
: Lights up during outdoor unit operation. (Cooling model only)  
Power Display : Indicates the setting temperature and operation mode.  
Operation  
mode  
Energy-saving  
cooling mode  
Test  
operation  
Auto  
clean  
JetCool  
Shape of  
display  
Outdoor Unit  
Air intake vents  
Connecting  
wires  
Refrigerant pipes  
Air outlet vents  
Base plate  
Drain hose  
Owner's Manual  
7
Operating Instructions  
Operating Instructions  
How to insert the Batteries  
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.  
NOTE  
1. Always use/replace both batteries of same type.  
2. If the system is not to be used for a long time, remove the  
batteries to save their working life.  
3. If the display screen of remote controller starts, fading replace  
both of the batteries.  
Wireless Remote Controller Maintenance  
1. Choose a suitable place where its safe & easy  
to reach.  
2. Fix the holder to wall etc with the supplied  
screws firmly.  
3. Slide the remote controller inside the holder.  
NOTE  
1. Remote controller should never be exposed to  
direct sunlight.  
2. Signal transmitter & receiver should always be  
clean for proper communication. Use a soft  
cloth to clean them.  
3. In case some other appliances also get  
operated with remote control, change their  
position or consult your serviceman.  
Operating Method  
1. The signal receiver is inside the unit.  
2. Aim the remote controller towards the unit to operate it.  
There should not be any blockage in between.  
8
Room Air Conditioner  
Operating Instructions  
Wireless Remote Controller  
The controls will look like the following.  
Signal transmitter  
1. START/STOP BUTTON  
Used to turn off/on the unit.  
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 BUTTON  
Used to select fan speed in four steps  
low, medium, high and CHAOS.  
5. JET COOL BUTTON  
Used to start or stop the speed cooling.  
(It operates fan in super high 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.  
8. TIME SETTING BUTTONS  
Used to adjust the time.  
9. TIMER SET/CANCEL BUTTON  
Used to set and to cancel the timer operation.  
10. SLEEP MODE AUTO BUTTON  
Used to set sleep mode auto operation.  
11. ENERGY-SAVING COOLING MODE BUTTON  
5
6
1
3
4
10  
2
7
CANCEL  
9
12  
13  
ON  
OFF  
SET  
AUTO CLEAN  
11  
8
14  
17  
15  
16  
Used to save Energy.  
12. ROOM TEMPERATURE CHECKING BUTTON  
Used to check the room temperature.  
13. AUTO CLEAN BUTTON  
Used to set auto clean mode.  
Flip-up door  
(opened)  
14. ˚C TO ˚F SWITCHING BUTTON  
Used to switch temperature reading from Centigrade  
to Fahrenheit.  
Operation Mode  
15. RESET BUTTON  
Used prior to resetting time.  
Cooling Operation  
16. 2nd F BUTTON  
Used prior to using modes printed in blue at the  
bottom of buttons.  
17. HORIZONTAL AIRFLOW DIRECTION CONTROL  
BUTTON (OPTIONAL)  
Healthy Dehumidification Operation  
Used to set the desired horizontal airflow direction.  
Cooling Model(  
)
NOTE  
To use the functions printed in blue at the bottom of the buttons press 2nd F button first and then the required function  
button. Pressing the 2nd F button activates the blue printed function of the respective button. To cancel the function  
press the 2nd F button again else it will automatically cancel if remains idle after 10 seconds.  
Owner's Manual  
9
Operating Instructions  
Operation Mode  
Press the START/STOP BUTTON to  
turn the unit on.  
The unit will respond with a beep.  
1
2
1
3
4
Open the door of the remote controller and press the  
operation mode button. Each time the button is pressed, the  
operation mode is shifted in the direction of the arrow.  
2
ON  
Cooling  
Healthy  
Dehumidification  
For cooling operation set the desired indoor temperature by  
pressing the ROOM TEMPERATURE SETTING BUTTONS.  
For cooling the temperature can be set within 18°C~30°C  
(64°F~86°F).  
3
4
To raise the temperature  
To lower the temperature  
Set the fan speed with the remote controller. You can select the fan speed in four steps-low,  
medium, high and CHAOS by pressing the INDOOR FAN SPEED SELECTOR BUTTON.  
Each time the button is pressed, the fan speed mode is shifted.  
CHAOS Air  
Fan speed is on low. Fan speed is on medium. Fan speed is on high.  
Natural wind by the CHAOS logic  
For fresher feeling, press the INDOOR FAN SPEED SELECTOR BUTTON selector and set to CHAOS mode.  
In this mode, the wind blows like a natural breeze by automatically changing fan speed according to the CHAOS logic.  
10 Room Air Conditioner  
Operating Instructions  
Healthy Dehumidification Operation  
During Healthy Dehumidification Operation  
If you select the dehumidification mode on the OPERATION MODE  
SELECTION BUTTON, the product starts to run the dehumidification  
function. It automatically sets the room temperature and airflow volume to  
the best condition for dehumidification, based on the sensed current room  
temperature.  
In this case, however, the setting temperature is not displayed on the remote  
controller and you are not able to control the room temperature either.  
During the healthy dehumidification function, the airflow volume is  
Healthy  
Dehumidification  
automatically set according to the optimization algorithm responding to the  
current room temperature status, so that the room condition is kept healthy  
and comfortable even in the very humid season.  
To run the healthy dehumidification mode follow steps 1, and 2 and 4  
(See operation mode)  
Jet Cool Operation  
Jet cool function can be used to cool the room quickly in hot summer. When this  
function is turned on, the air conditioner runs in cooling operation mode with super  
high fan speed and 18°C(64°F) setting temperature for 30 minutes for fast and  
effective cooling.  
You can activate this operation by pressing the JET COOL BUTTON.  
To change from jet cool mode to high fan speed cooling mode, press the JET COOL BUTTON or  
INIDOOR FAN SPEED SELECTOR BUTTON or the ROOM TERPERATURE SETTING BUTTON again.  
Auto Clean  
During auto clean function, moistures left in indoor units after cooling operation or healthy dehumidification  
operation can be removed.  
1. Press the AUTO CLEAN BUTTON to activate this function.  
AUTO CLEAN  
2. Now whenever the unit is turned off, the indoor fan is still running for about 30  
minutes internally without cooling or dehumidification operation. Also the louver is  
closed.  
3. This dries up any remains of moisture & cleans the unit internally.  
4. If you press AUTO CLEAN BUTTON again during operation, this function is  
cancelled.  
NOTE  
During auto clean function, only START/STOP BUTTON and AUTO CLEAN BUTTON can be used.  
Owner's Manual 11  
Operating Instructions  
Energy-Saving Cooling Mode  
Energy-saving cooling mode can save energy in cooling and healthy dehumidification operation, because it  
can operate efficiently by setting body-adaptation time according to the change of time and temperature and  
adjusting automatically desired temperature.  
1. Press the START/STOP BUTTON to start the unit.  
2. Open the door on the remote controller.  
Select cooling operation or healthy dehumidification operation.  
3. Press the ENERGY-SAVING COOLING MODE BUTTON.  
4. To cancel the energy-saving cooling mode, press the ENERGY-SAVING  
COOLING MODEL BUTTON again and unit will operate in previous  
mode(Cooling or healty dehumidification mode).  
Forced operation  
Operation procedures when the remote control can't be used.  
The operation will be started if the ON/OFF button is pressed.  
If you want to stop operation, re-press the button.  
ON/OFF  
button  
Cooling Model  
Operating mode  
Indoor FAN Speed  
Setting Temperature  
Cooling  
High  
22°C(71.6°F)  
Test operation  
During the TEST OPERATION, the unit operates in cooling mode at high speed fan, regardless of room  
temperature and resets in 18 minutes.  
During test operation, if remote controller signal is received, the unit operates as remote controller sets.  
If you want to use this operation, Press and hold the ON/OFF button for 3~5 seconds, then the buzzer sound  
1 "beep".  
If you want to stop the operation, re-press the button.  
12 Room Air Conditioner  
Operating Instructions  
Sleep Mode  
1. Press the SLEEP MODE AUTO BUTTON to set the time when you want the unit to stop 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 AUTO BUTTON while aiming at air conditioner.  
3. Make sure the Timer LED lights up.  
To cancel the sleep mode, press the SLEEP MODE AUTO BUTTON several times until the Timer LED lights off.  
NOTE  
The sleep mode will operate indoor fan at slow speed in cooling mode.  
In cooling mode or healthy dehumidification mode:  
The setting temperature will rise automatically two times by 1°C(2°F) over next consecutive 30 minutes [2°C(4°F) in 1  
hour] for a comfortable sleep. Now this will be the final setting temperature as long as sleep mode is functioning.  
Setting the Current Time  
1. Time can be set only when you press the RESET BUTTON. Having replacing the batteries,  
you should press the RESET BUTTON to reset the time. Press the Start/Stop button.  
2. Press 2nd F button and check if  
icon is on.  
3. Press the TIME SETTING BUTTONS until the desired time is set.  
CANCEL  
4. Press the TIME SET/CANCEL BUTTON.  
SET  
NOTE  
Check the indicator for A.M. and P.M.  
Timer Setting  
1. Make sure to set current time correctly on the display of the remote controller.  
ON  
OFF  
2. Press 2nd F button.  
3. Press the ON/OFF TIMER BUTTONS to turn timer on or off.  
4. Press the TIME SETTING BUTTONS until the desired time is set.  
CANCEL  
SET  
5. To set the selected time, press the TIMER SETTING BUTTONS aiming the remote controller at the  
signal receptor.  
To cancel the timer setting  
CANCEL  
Check if  
icon is off.  
SET  
Press the TIMER CANCEL BUTTON aiming the remote controller at the signal receptor.  
(The timer lamp on the air conditioner and the display will go off.)  
NOTE  
Select one of the following four types of operation.  
Delay off timer  
Delay on timer  
Delay off and on timer  
Delay on and off timer  
Owner's Manual 13  
Operating Instructions  
Vertical / Horizontal Airflow Direction Control (Optional)  
The up/down airflow (Vertical airflow) can be  
adjusted by using the remote controller.  
The left/right(Horizontal airflow) can be adjusted  
by using the remote control.  
1. Press the START/STOP BUTTON to start the  
unit.  
1. Press the START/STOP BUTTON to start the  
unit.  
2. Press the HORIZONTAL AIRFLOW  
DIRECTION BUTTON.  
2. Press CHAOS SWING BUTTON.  
3. The louvers will swing left &  
right automatically.  
3. The louvers will swing up &  
down automatically.  
4. To stop the louvers at a desired  
4. To stop the louver at a desired  
angle, press  
again.  
angle, press  
again  
NOTE  
By pressing the CHAOS SWING BUTTON the horizontal air flow 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 natural breeze.  
Always use the remote controller to adjust the up and down air flow direction. Manually moving the vertical air flow  
direction louver by hand could damage the mechanism.When the unit is shut off, the up/down airflow direction louver will  
close the air outlet vent of the system.  
Auto Restart Function  
This function is useful in the situation of power failure.  
When power regains after a failure this feature restore the previous operating condition  
and the air conditioner will run in the same settings.  
NOTE  
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  
14 Room Air Conditioner  
Maintenance and Service  
Maintenance and Service  
Before performing any maintenance, turn off the main power to the system, disconnect the circuit breaker and  
unplug the power cord.  
Indoor Unit  
Clean the unit with a soft dry cloth. Do not use bleach or abrasives.  
Never use any of these  
P
o
w
d
e
r
Water hotter than 40°C(104°F). It may cause deformation and discoloration.  
Volatile substances. They may damage the surface of the air conditioner.  
G
a
e
oli  
n
s
Air Filters  
The air filters behind the front panel / grill should be checked and  
cleaned once in every 2 weeks or more often if necessary. To  
remove the filters see the self explanatory diagrams for each  
model type. Clean the filters with a vacuum cleaner or warm  
soapy water. If dirt is not easily removed, wash with a solution of  
detergent in luke warm water. Dry well in shade after washing and  
reinstall the filters back in place.  
Deodorizer Filters  
Remove the deodorizer filters behind the air filter and expose  
them in direct sunlight for 2 hours.  
And then insert these filters into original position.  
Removal of Filters  
Open the front panel as shown.  
Then pull the filter tab slightly forward to remove the air filter.  
After removing the air filter remove the deodorizer filter by slightly pulling forward.  
Deodorizer  
filter  
Owner's Manual 15  
Maintenance and Service  
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.  
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 Do not let direct sunshine enter  
Adjust the vertical and horizontal  
airflow direction to ensure a  
uniform temperature in the room.  
wastes electricity.  
the room when the air conditioner  
is in operation.  
Make sure that the  
doors and windows  
are shut thight.  
Clean the air filter  
regularly.  
Ventilate the room  
occasionally.  
Use high fan speed  
for effective and fast  
cooling.  
Avoid opening doors and  
windows as much as  
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.  
The unit gives its rated  
cooling capacity when the  
fan speed is high.  
Self-Diagnosis Function  
This unit has an inbuilt error diagnosis capability. Unit LED(  
Please contact your serviceman/dealer in such a situation  
) will blink in case if thermistor fails.  
Error Display LED (  
(once)  
)
Check Point  
Indoor room temperature thermistor open/short.  
Indoor pipe temperature thermistor open/short.  
3 sec  
3 sec  
3 sec  
16 Room Air Conditioner  
Maintenance and Service  
Troubleshooting Tips! Save time and money!  
The air conditioner may be operating abnormally when:  
Problem  
Possible Causes  
What To Do  
I The air conditioner is  
unplugged.  
Make sure the air conditioner plug is  
pushed completely into the outlet.  
I The fuse is blown/circuit  
breaker is tripped.  
Check the house fuse/circuit breaker box  
and replace the fuse or reset the breaker.  
Air  
I Power failure.  
If power failure occurs, turn the mode  
control to OFF.  
When power is restored, wait 3 minutes to  
restart the air conditioner to prevent  
tripping of the compressor overload.  
conditioner  
does not start  
I High voltage.  
If the voltage is unusually very high or low  
the Circuit Breaker will trip.  
Make sure there are no curtains, blinds, or  
furniture blocking the front of the air  
conditioner.  
I Airflow is restricted.  
Clean the filter at least every 2 weeks.  
See the Maintenance and Service section.  
I The air filter is dirty.  
Air  
I
The room may have been hot. When the air conditioner is first turned on,  
conditioner  
does not cool  
as it should  
you need to allow time for the room to cool  
down.  
I Cold air is escaping.  
Check for open furnace floor registers and  
cold air returns.  
I
Check the temperature settings. Make sure they are correct.  
I There might be a heating  
source in the room.  
Check and remove such source or turn it  
off while using the air conditioner.  
Call the service immediately in the following situations  
1. Anything abnormal such as burning smell, loud noise etc. happen. Stop the unit and  
turn the breaker off. Never try to repair by yourself or restart the system in such cases.  
2. Main power cord is too hot or damaged.  
3. Error code is generated by self diagnosis.  
4. Water leaks from indoor unit even if the humidity is low.  
5. Any switch, breaker (safety, ground) or fuse fails to work properly  
User must carry routine checkup & cleaning to avoid units poor performance.  
In case of special situation, the job must be carried out by service person only.  
Owner's Manual 17  
Memo  
18 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  
Jan. 2008  
P/No.: MFL39817405  

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