Hitachi RAS-18EH2 User manual

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ENGLISH
INDOOR UNIT
OUTDOOR UNIT
INDOOR UNIT/OUTDOOR UNIT
MODEL
RAS-18EH2
RAC-18EH2
RAS-18EH2/RAC-18EH2
SPLIT TYPE AIR CONDITIONER
Instruction manual Page 1~24
To obtain the best performance, please read this instruction manual completely.
Инструкция по эксплуатации стр. 25~48
Для правильной работы данного устройства обязательно полностью прочитайте данную инструкцию.

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SAFETY PRECAUTION
PRECAUTIONS DURING OPERATION
● Avoid an extended period of direct air flow for your health.
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● Do not insert a finger, a rod or other objects into the air outlet or inlet. As the fan
is rotating at a high speed, it will cause injury. Before cleaning, be sure to stop the
operation and turn the breaker OFF.
● During thunder storm, disconnect and turn off the circuit breaker.
● Do not use any conductor as fuse wire, this could cause fatal accident.
PRECAUTIONS DURING SHIFTING OR MAINTENANCE
● Should abnormal situation arises (like burning smell), please stop operating the
unit and turn off the circuit breaker. Contact your agent. Fault, short circuit or fire
may occur if you continue to operate the unit under abnormal situation.
● Please contact your agent for maintenance. Improper self maintenance may cause
electric shock and fire.
● Please contact your agent if you need to remove and reinstall the unit. Electric
shock or fire may occur if you remove and reinstall the unit yourself improperly.
● If the supply cord is damaged, it must be replaced by the special cord obtainable at
authorized service/parts centers.
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● Please read the “Safety Precaution” carefully before operating the unit to ensure correct usage of the unit.
● Pay special attention to signs of “ Warning” and “ Caution”. The “Warning” section contains matters which,
if not observed strictly, may cause death or serious injury. The “Caution” section contains matters which may
result in serious consequences if not observed properly. Please observe all instructions strictly to ensure safety.
● The sign indicate the following meanings.
Make sure to connect earth line. The sign in the figure indicates prohibition.
Indicates the instructions that must be followed.
● Please keep this manual after reading.
WARNING
PRECAUTIONS DURING INSTALLATION
●Do not reconstruct the unit.
Water leakage, fault, short circuit or fire may occur if you reconstruct the
unit by yourself.
●Please ask your sales agent or qualified technician for the installation of your
unit. Water leakage, short circuit or fire may occur if you install the unit by
yourself.
●Please use earth line.
Do not place the earth line near water or gas pipes, lightning-conductor, or
the earth line of telephone. Improper installation of earth line may cause
electric shock.
●Be sure to use the specified piping set for R410A. Otherwise, this may result
in broken copper pipes or faults.
●A circuit breaker should be installed depending on the mounting site of the
unit. Without a circuit breaker, the danger of electric shock exists.
●Do not install near location where there is flammable gas. The outdoor unit
may catch fire if flammable gas leaks around it.
●Please ensure smooth flow of water when installing the drain hose.
CAUTION
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ENGLISH
PRECAUTIONS DURING OPERATION
● Do not attempt to operate the unit with wet hands, this could cause fatal
accident.
● When operating the unit with burning equipments, regularly ventilate the
room to avoid oxygen insufficiency.
● Do not direct the cool air coming out from the air-conditioner panel to face
household heating apparatus as this may affect the working of apparatus
such as the electric kettle, oven etc.
● Do not use any aerosol or hair sprays near the indoor unit. This chemical
can adhere on heat exchanger fin and blocked the evaporation water flow to
drain pan. The water will drop on tangential fan and cause water splashing
out from indoor unit.
● Please ensure that outdoor mounting frame is always stable, firm and
without defect. If not, the outdoor unit may collapse and cause danger.
● Do not splash or direct water to the body of the unit when cleaning it as this
may cause short circuit.
● When operating the unit with the door and windows opened, (the room humidity is always above
80%) and with the air deflector facing down or moving automatically for a long period of time,
water will condense on the air deflector and drips down occasionally. This will wet your furniture.
Therefore, do not operate under such condition for a long time.
● If the amount of heat in the room is above the cooling or heating capability of the unit (for example:
more people entering the room, using heating equipments and etc.), the preset room temperature
cannot be achieved.
● This appliance is not intended for use by young children or infirm persons unless they have been
adequately supervised by a responsible person to ensure that they can use the appliance safely.
● Young children should be supervised to ensure that they do not play with the appliance.
● Do not climb on the outdoor unit or put objects on it.
● Please switch off the unit and turn off the circuit breaker during cleaning, the
high-speed fan inside the unit may cause danger.
● Turn off the circuit breaker if the unit is not to be operated for a long period.
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● The product shall be operated under the manufacturer specification and
not for any other intended use.
● Do not put water container (like vase) on the indoor unit to avoid water
dripping into the unit. Dripping water will damage the insulator inside the unit
and causes short-circuit.
● Do not place plants directly under the air flow as it is bad for the plants.
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INDOOR UNIT
NAMES AND FUNCTIONS OF EACH PART
Air filter
To prevent dust from coming into the indoor unit.
(Refer page 19)
Front panel
Indoor unit indicators
Light indicator showing the operating condition.
(Refer page 5)
Horizontal deflector ●Vertical deflector
(Air Outlet)
Remote controller
Send out operation signal to the indoor unit. So as
to operate the whole unit.
(Refer page 6)
WIDTH (mm)
780
850
MODEL
RAS-18EH2
RAC-18EH2
HEIGHT (mm)
280
650
DEPTH (mm)
215
298
MODEL NAME AND DIMENSIONS
OUTDOOR UNIT
DRAIN PIPE
Condensed water drain to outside.
CONNECTING CORD
AIR INLET (BACK, LEFT SIDE)
AIR OUTLET
●Air purifying filters are washable and can be use in 1 year time. Type number for this air purifying
filter is <SPX-CFH20>. Please use this number for ordering when you want to renew it.
●Air purifying filter should be cleaned every month or sooner if noticeable loading occurs. When
used overtime, it may loose its function. For maximum performance, it is recommended to replace
it every 1 year depending on application requirements.
NOTE

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ENGLISH
TEMPORARY
SWITCH
INDOOR UNIT INDICATORS
OPERATION INDICATOR
FILTER LAMP
When the device is operated for a total of about 200 hours,
the FILTER lamp lights to indicate that it is time to clean
the filter. The lamp goes out when the “ (AUTO
SWING)” button is pressed while the device is on
“STANDBY MODE”.
OPERATION LAMP
This lamp lights during operation.
The OPERATION LAMP flashes in the following cases
during heating.
(1) During preheating
For about 2–3 minutes after starting up.
(2) During defrosting
Defrosting will be performed about once every one
hour when frost forms on the heat exchanger of the
outdoor unit, for 5–10 minutes each time.
TIMER LAMP
This lamp lights when the timer is working.
TEMPORARY
SWITCH
Press
Press
Temporary Switch
Temporary Switch
Non-conductor Stick
Non-conductor Stick
TEMPORARY SWITCH
Use this switch to start and stop when the remote controller does not work. [Use non-conductor stick
(example: toothpick)]
●By pressing the temporary switch, the operation is done in previously set operation mode.
●When the operation is done using the temporary switch after the power source is turned off and turn
on again, the operation is done in automatic mode.

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NAMES AND FUNCTIONS OF REMOTE CONTROL UNIT
REMOTE CONTROLLER
● This controls the operation of the indoor unit. The range of control is about 7 meters. If indoor lighting is
controlled electronically, the range of control may be shorter.
● This unit can be fixed on a wall using the fixture provided. Before fixing it, make sure the indoor unit can be
controlled from the remote controller.
● Handle the remote controller with care. Dropping it or getting it wet may compromise its signal transmission
capability.
● After new batteries are inserted into the remote controller, the unit will initially require approximately 10
seconds to respond to commands and operate.
● Signal emitting window/transmission sign
Point this window toward the indoor unit when controlling it.
The transmission sign blinks when a signal is sent.
● Display
This indicates the room temperature selected, current time, timer status, function
and intensity of circulation selected.
● START/STOP button
Press this button to start operation. Press it again to stop operation.
● SLEEP button
Use this button to set the sleep timer.
● TEMPERATURE buttons
Use this buttons to raise or lower the temperature setting. (Keep pressed, and
the value will change more quickly.)
● TIME button
Use this button to set and check the time and date.
● RESET buttons
● FUNCTION selector
Use this button to select the operating mode. Every time you press it, the mode
will change from (AUTO) to (HEAT) to (DEHUMIDIFY) to (COOL)
and to (FAN) cyclically.
● FAN SPEED selector
This determines the fan speed. Every time you press this button, the intensity of
circulation will change from (AUTO) to (HI) to (MED) to (LOW) to
(SILENT) (This button allows selecting the optimal or preferred fan speed for
each operation mode).
● AUTO SWING button
Controls the angle of the horizontal air deflector.
● TIMER control
Use this button to set the timer.
● OFF-TIMER button Select the turn OFF time.
● ON-TIMER button Select the turn ON time.
● RESERVE button Time setting reservation.
● CANCEL button Cancel time reservation.
Precautions for Use
● Do not put the remote controller in the following places.
● Under direct sunlight.
● In the vicinity of a heater.
● Handle the remote controller carefully. Do not drop it on the floor, and
protect it from water.
● Once the outdoor unit stops, it will not restart for about 3 minutes (unless
you turn the power switch off and on or unplug the power cord and plug
it in again).
This is to protect the device and does not indicate a failure.
● If you press the FUNCTION selector button during operation, the device
may stop for about 3 minutes for protection.
AUTO
HEAT
DEHUMIDIFY
COOL
FAN
FAN SPEED
SILENT
LOW
MED
HI
SLEEPING
STOP (CANCEL)
START (RESERVE)
START/STOP
TIME
TIMER SET
TIMER SELECTOR
ON TIMER
OFF TIMER
AUTO SWING

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ENGLISH
AUTOMATIC OPERATION
The device will automatically determine the mode of operation, HEAT, COOL or DEHUMIDIFY depending on
the current room temperature. The selected mode of operation will change when the room temperature varies.
However the mode of operation will not change when indoor unit connected to multi type outdoor unit.
VARIOUS FUNCTIONS
■Auto Restart Control
● If there is a power failure, operation will be automatically restarted when the power is resumed with previous
operation mode and airflow direction.
(As the operation is not stopped by remote controller.)
● If you intend not to continue the operation when the power is resumed, switch off the power supply.
When you switch on the circuit breaker, the operation will be automatically restarted with previous operation
mode and airflow direction.
Note: 1. If you do not require Auto Restart Control, please consult your sales agent or OFF by remote
control.
2. Auto Restart Control is not available when Timer or Sleep Timer mode is set.
■ As the settings are stored in memory in the remote controller, you
only have to press the (START/STOP) button next time.
Press the FUNCTION selector so that the display indicates the
(AUTO) mode of operation.
● When AUTO has been selected, the device will automatically
determine the mode of operation, HEAT, COOL or
DEHUMIDIFY depending on the current room temperature.
However the mode of operation will not change when indoor
unit connected to multi type outdoor unit.
● If the mode automatically selected by the unit is not
satisfactory, manually change the mode setting (heat,
dehumidify, cool or fan).
Press the (START/STOP) button.
Operation starts with a beep.
Press the button again to stop operation.
You can raise or lower the temperature setting as necessary by
maximum of 3°C.
Press the temperature button and the
temperature setting will change by 1°C each
time.
● The preset temperature and the actual room temperature may
vary somewhat depending on conditions.
● The display does not indicate the preset temperature in the
AUTO mode. If you change the setting, the indoor unit will
produce a beep.
START
STOP
Press the (FAN SPEED) button, AUTO, LOW and SILENT is
available.
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HEATING OPERATION
● Use the device for heating when the outdoor temperature is under 21°C.
When it is too warm (over 21°C), the heating function may not work in order to protect the device.
● In order to keep reliability of the device, please use this device above -15°C of the outdoor temperature.
Press the FUNCTION selector so that the display indicates
(HEAT).
Set the desired FAN SPEED with the (FAN SPEED) button (the
display indicates the setting).
(AUTO) : The fan speed changes automatically according
to the temperature of the air which blows out.
(HI) : Economical as the room will become warm
quickly.
But you may feel a chill at the beginning.
(MED) : Fan speed slow.
(LOW) : Fan speed slower.
(SILENT) : Fan speed ultra slower.
Set the desired room temperature with the TEMPERATURE buttons
(the display indicates the setting).
The temperature setting and the actual room temperature may vary
somewhat depending on conditions.
Press the (START/STOP) button. Heating operation starts with a
beep. Press the button again to stop operation.
■ As the settings are stored in memory in the remote controller, you only
have to press the (START/STOP) button next time.
START
STOP
■Defrosting
Defrosting will be performed about once an hour when frost forms on the heat exchange of the outdoor unit, for
5~10 minutes each time.
During defrosting operation, the operation lamp blinks in cycle of 3 seconds on and 0.5 second off.
The maximum time for defrosting is 20 minutes.
However, if it is connected to multi type outdoor unit, the maximum time for defrosting is 15 minutes.
(If the piping length used is longer than usual, frost will likely to form.)
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ENGLISH
DEHUMIDIFYING OPERATION
■Dehumidifying Function
● When the room temperature is higher than the temperature setting: The device will dehumidify the room,
reducing the room temperature to the preset level.
When the room temperature is lower than the temperature setting: Dehumidifying will be performed at the
temperature setting slightly lower than the current room temperature, regardless of the temperature setting.
The function will stop (the indoor unit will stop emitting air) as soon as the room temperature becomes lower
than the setting temperature.
● The preset room temperature may not be reached depending on the number of people present in the room
or other room conditions.
Set the desired room temperature with the TEMPERATURE
button (the display indicates the setting).
The range of 20-26˚C is recommended as the room
temperature for dehumidifying.
Press the (START/STOP) button. Dehumidifying operation
starts with a beep. Press the button again to stop operation.
■ As the settings are stored in memory in the remote controller, you only
have to press the (START/STOP) button next time.
START
STOP
Press the FUNCTION selector so that the display indicates
(DEHUMIDIFY).
The FAN SPEED is set at LOW or SILENT.
Use the device for dehumidifying when the room temperature is over 16°C.
When it is under 15°C, the dehumidifying function will not work.
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COOLING OPERATION
Use the device for cooling when the outdoor temperature is -10~ 43°C.
If in doors humidity is very high (80%), some dew may form on the air outlet grille of the indoor unit.
Press the FUNCTION selector so that the display indicates
(COOL).
Set the desired FAN SPEED with the (FAN SPEED) button (the
display indicates the setting).
(AUTO) : The FAN SPEED is HI at first and varies to
MED or LOW automatically when the preset
temperature has been reached.
(HI) : Economical as the room will become cool
quickly.
(MED) : Fan speed slow.
(LOW) : Fan speed slower.
(SILENT) : Fan speed ultra slower.
Set the desired room temperature with the TEMPERATURE button
(the display indicates the setting).
The temperature setting and the actual room temperature may
vary some how depending on conditions.
Press the (START/STOP) button. Cooling operation starts with
a beep. Press the button again to stop operation. The cooling
function does not start if the temperature setting is higher than
the current room temperature (even though the (OPERATION)
lamp lights). The cooling function will start as soon as you set the
temperature below the current room temperature.
■ As the settings are stored in memory in the remote controller, you only
have to press the (START/STOP) button next time.
START
STOP
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ENGLISH
FAN SPEED (AUTO) ..... When the AUTO fan speed mode is set in the cooling/heating operation:
For the heating operation
● When the difference of room temperature and setting temperature is large,
fan starts to run at HI speed.
● After room temperature reaches the preset temperature, the heating
operation, which changes the fan speed and room temperature to obtain
optimum conditions for natural healthful heating will be performed.
● When the difference of room temperature and setting temperature is large,
fan starts to run at HI speed.
● After room temperature reaches the preset temperature, the cooling
operation, which changes the fan speed and room temperature to obtain
optimum conditions for natural healthful cooling will be performed.
For the cooling operation
FAN OPERATION
You can use the device simply as an air circulator. Use this function to dry the interior of the indoor unit at
the end of summer.
Press the FUNCTION selector so that the display indicates
(FAN).
Press the (FAN SPEED) button.
(HI) : The strongest air blow.
(MED) : Fan speed slow.
(LOW) : Fan speed slower.
(SILENT) : Fan speed ultra slower.
Press the (START/STOP) button. Fan operation starts with a
beep. Press the button again to stop operation.
START
STOP
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HOW TO SET THE TIMER
You can set the device to turn off
at the preset time.
After you change the
batteries;
How to Cancel Reservation
Point the signal window of the remote controller toward the indoor unit, and press the (CANCEL) button.
The (RESERVED) sign goes out with a beep and the (TIMER) lamp turns off on the indoor unit.
1 Press the (TIME) button.
1 Press the (OFF-TIMER)
button, until the (OFF) mark
blinks on the display.
NOTE
You can set only one of the OFF-timer,
ON-timer and ON/OFF-timer.
● The device will turn on at
the designated times.
TIME
OFF TIMER
ON TIMER
RESERVE
CANCEL
2 Set the turn-off time
with the TIMER control
button.
Press the (RESERVE)
button.
3 Press the (ON-
TIMER) button so that the
(OFF) mark lights and
the (ON) mark blinks.
1 Press the (ON-TIMER)
button the (ON) mark blinks
on the display.
● The device will turn on (off) and off
(on) at the designated times.
● The switching occurs first at the
preset time that comes earlier.
● The arrow mark appearing on the
display indicates the sequence of
switching operations.
1 Press the (ON-OFF)
button so that the (OFF)
mark blinks.

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ENGLISH
● The time indication will disappear
automatically in 10 second.
● To check the current time setting,
press the (TIME) button twice.
The setting of the current time is
now complete.
● The timer may be used in three ways: off-timer, on-timer, and on/off (off/on)-timer. Set the current time at first
because it serves as a reference.
● As the time settings are stored in memory in the remote controller, you only have to press the (RESERVE)
button in order to use the same settings next time.
2 Press the
(TIME) button.
3 Set the current time with the
TIMER control button.
Example: The current time is 1:30 p.m.
2 Set the turn-off time with the
TIMER control button.
The setting of turn-off time is now complete.
Example: The device will turn off at 11:00p.m.
Example:
The device will turn on at 7:00 a.m.
The setting of the turn-on time is now complete.
4 Set the turn-on time with the
TIMER control button.
5 Point the signal window of the remote controller toward the indoor unit, and
press the (RESERVE) button.
The (ON) mark starts lighting instead of flashing and the (RESERVED)
sign lights. A beep occurs and the (TIMER) lamp lights on the indoor unit.
3 Point the signal window of the remote controller toward the indoor unit, and
press the (RESERVE) button.
The (ON) mark starts lighting instead of flashing and the (RESERVED)
sign lights. A beep occurs and the (TIMER) lamp lights on the indoor unit.
2 Set the turn-on time with the
TIMER control button.
Example:
The device will turn off at 10:30 p.m. and it will be turned on
at 7:00 a.m.
The settings of the turn-on/off times are now complete.
4 Press the (TIME) button again.
The time indication starts lighting
instead of flashing.
3 Point the signal window of the remote controller toward the indoor unit, and
press the (RESERVE) button.
The (OFF) mark starts lighting instead of flashing and the sign (RESERVED)
lights. A beep occurs and the (TIMER) lamp lights on the indoor unit.

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HOW TO SET THE SLEEP TIMER
1 Set the ON-timer.
Set the current time at first if it is not set before (see the pages for setting the current time). Press the
(SLEEP) button, and the display changes as shown below.
Mode
Sleep timer 1 hour 2 hours 3 hours 7 hours
Sleep timer off
44 44
1
Sleep Timer: The device will continue working for the designated number of
hours and then turn off.
Point the signal window of the remote controller toward the indoor unit, and
press the SLEEP button.
The timer information will be displayed on the remote controller. The TIMER
lamp lights with a beep from the indoor unit. When the sleep timer has been set,
the display indicates the turn-off time.
Example: If you set 3 hours sleep
time at 11:38 p.m., the turn-off time
is 2:38 a.m.
2 Press the (SLEEP) button and set the sleep timer.
The device will be turned off by the sleep timer and
turned on by on-timer.
How to Cancel Reservation
Point the signal window of the remote controller toward the indoor unit, and press the (CANCEL) button.
The (RESERVED) sign goes out with a beep and the (TIMER) lamp turns off on the indoor unit.
For heating:
In this case, the device will turn off in 2
hours (at 1:38 a.m.) and it will be turned on
6:00 next morning.
Indication

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ENGLISH
HOW TO EXCHANGE THE BATTERIES IN THE REMOTE CONTROLLER
1
Remove the cover as shown in the figure and take out the old
batteries.
=
Install the new batteries.
The direction of the batteries should match the marks in the case.
1. Do not use new and old batteries, or different kinds of batteries
together.
2. Take out the batteries when you do not use the remote controller for
2 or 3 months.
CAUTION
CIRCUIT BREAKER
When you do not use the room air conditioner, set the circuit breaker to “OFF”.
TEMPORARY SWITCH
If the remote controller does not work due to battery failure, press this switch to start and stop operation.
● This temporary operation will be at the setting made most recently. (The unit will immediately go into automatic
operation once power is switched on.)
Push and pull to the
direction of arrow
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Suitable Room Temperature Install curtain or blinds
Ventilation Effective Usage Of Timer
Do Not Forget To Clean The Pre-Filter Please Adjust Suitable Temperature
For Baby And Children
Warning
Freezing temperature
is bad for health and
a waste of electric
power.
It is possible
to reduce heat
entering the
room through
windows.
At night, please use the “OFF or ON timer
operation mode”, together with your wake
up time in the morning. This will enable you
to enjoy a comfortable room temperature.
Please use the timer effectively.
Dusty pre-filter will reduce the air volume and
the cooling efficiency. To prevent from wasting
electric energy, please clean the pre-filter
every 2 weeks.
Please pay attention to the room temperature
and air flow direction when operating the unit
for baby, children and old folks who have
difficulty in movement.
Caution
Do not close the room for a long period of time.
Occasionally open the door and windows to
allow the
entrance
of fresh air.
THE IDEAL WAYS OF OPERATION

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ENGLISH
FOR USER’S INFORMATION
The Air Conditioner And The Heat Source In The Room
Not Operating For A Long Time
When Lightning Occurs
Caution
If the amount of heat in the room is above the cooling
capability of the air conditioner (for example: more
people entering the room, using heating equipments and
etc.), the preset room temperature cannot be achieved.
When the indoor unit is not to be used for a long period
of time, please switch off the power from the mains. If
the power from mains remains “ON”, the indoor unit still
consumes about 8W in the operation control circuit even if
it is in “OFF” mode.
Warning
To protect the whole unit during lightning, please stop
operating the unit and remove the plug from the socket.
Interference From Electrical Products
Caution
To avoid noise interference, please place the indoor unit
and its remote controller at least 1m away from electrical
products. TV
Inverter-type
fluorescent
lamp.
To prevent
interference,
place at least
1m away.
OFF
Product Operating Life
This term is valid only for the products, being purchased on the territory of Russian Federation.
In accordance with the article 5.2 of the Law “On Protection of Consumers” in operational conditions in Russian
Federation the operating life of a domestic air conditioner is determined as 7 years from the date of manufacture.
Considering the high quality, reliability and high level of operating safety of “Hitachi” products, the actual operating
life may considerably exceed the official one.
This operating life is related to those parts of the product that are needed for its proper functioning under the fol-
lowing conditions:
●The item is properly assembled by a certified company and is used according to the service and operation manual.
●The repair and annual technical service are carried out by the company which installed this product

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ATTACHING THE AIR PURIFYING FILTERS
Open the front panel.
● Pull up the front panel by holding it at both sides with
both hands.
Remove the pre-filter.
● Push upward to release the claws and pull out the
pre-filter.
Attaching the air purifying filters to the filter frame.
● Attach the air purifying filters to the frame by gently
compress its both sides and release after insertion
into filter frame.
Attach the pre-filters.
● Attach the pre-filters by ensuring that the surface
written “FRONT” is facing front.
● After attaching the pre-filters, push the front panel at
three arrow portion as shown in figure and close it.
Cleaning and maintenance must be carried out only by qualified service personal. Before cleaning, stop
operation and switch off the power supply.
CAUTION
CAUTION
Do not bend the air purifying
filter as it may cause damage to
the structure.
NOTE
● In case of removing the air purifying filters, please follow the above procedures.
● The cooling capacity is slightly weakened and the cooling speed becomes slower when the air purifying
filters are used. So, set the fan speed to "HIGH" when using it in this condition.
● Do not operate the air conditioner without filter. Dust may enter the air conditioner and fault may occur.
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Claws
(4 places)

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ENGLISH
MAINTENANCE
Cleaning and maintenance must be carried out only by qualified service personal. Before
cleaning, stop operation and switch off the power supply.
1. PRE-FILTER
Clean the pre-filter, as it removes dust inside the room. In case the pre-filter is full of dust, the air flow will
decrease and the cooling capacity will be reduced. Further, noise may occur. Be sure to clean the filter
following the procedure below.
CAUTION
Open the front panel and remove the pre-filter
● Gently lift and remove the air purifying filter
from the pre-filter frame.
Vacuum dust from the pre-filter and air purifying
filter using vacuum cleaner. If there is too much
dust, pre-filter only rinse under running tap water
and gently brush it with soft bristle brush. Allow
filters to dry in shade.
● Re-insert the air purifying filter to the filter
frame. Set the filter with “FRONT” mark facing
front, and slot them into the original state.
● After attaching the pre-filters, push the front
panel at three arrow portions as shown in
figure and close it.
CAUTION
● Do not wash with hot water at more than 40°C. The filter may shrink.
● When washing it, shake off moisture completely and dry it in the shade; do not expose it directly to the
sun. The filter may shrink.
● Do not use detergent on the air purifying filter as some detergent may deteriorate the filter electrostatic
performance.
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2. Washable Front Panel
● Remove the front panel and wash with clean
water.
Wash it with a soft sponge.
After using neutral detergent, wash thoroughly
with clean water.
● When front panel is not removed, wipe it with
a soft dry cloth. Wipe the remote controller
thoroughly with a soft dry cloth.
● Wipe the water thoroughly.
If water remains at indicators or signal receiver
of indoor unit, it causes trouble.
Method of removing the front panel.
Be sure to hold the front panel with both hands
to detach and attach it.
CAUTION
● Do not splash or direct water to the body of the unit when cleaning it as
this may cause short circuit.
● Never use hot water (above 40°C), benzine, gasoline, acid, thinner or a
brush, because they will damage the plastic surface and the coating.
Removing the Front Panel
● When the front panel is fully opened with
both hands, push the right arm to the inside
to release it, and while closing the front panel
slightly, put it out forward.
Attaching the Front Panel
● Move the projections of the left and right arms
into the Flanges in the unit and securely insert
them into the holes.
Arm
Flange
Hole
Projection