Hitachi RAS-10EX9K User manual


SPLIT TYPE
INDOOR UNIT/OUTDOOR UNIT
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Instruction manual Page 1~36
To obtain the best performance and ensure years of trouble free use, please read this instruction manual
completely.
MODEL
RAS-10EX9K/RAC-10EX9
RAS-13EX9K/RAC-13EX9
RAS-10EX9K
RAS-13EX9K
RAC-10EX9
OUTDOOR UNIT INDOOR UNIT
RAC-13EX9
RAS/RAC-10/13EX9K (Cover) 27/4/05, 3:11 PM36
¶´ƒ

– 2 –
●
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.
●
Please keep this manual after reading.
!
SAFETY PRECAUTION
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.
●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
!
!
PRECAUTIONS DURING SHIFTING OR MAINTENANCE
PRECAUTIONS DURING OPERATION
●Avoid an extended period of direct air flow for your health.
W
A
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N
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!
●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.
●Do not put objects like thin rods into the panel of blower and suction side
because the high-speed fan inside may cause danger.
●During thunder storm, disconnect and turn off the circuit breaker.
●Do not use any conductor as fuse wire, this could cause fatal accident.
!
Make sure to connect earth line.
Indicates the instructions that must be followed.
The sign in the figure indicates prohibition.
W
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R
N
I
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G
!
●This unit has UV LED which emits ultra violet light.
AVOID DIRECT EYE EXPOSURE.
!

ENGLISH
– 3 –
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 place plants directly under the air flow as it is bad for the plants.
●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.
●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.
C
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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 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.

– 4 –
INDOOR UNIT
OUTDOOR UNIT
WIDTH (mm)MODEL
RAS-10EX9K / 13EX9K
RAC-10EX9
RAC-13EX9
HEIGHT (mm) DEPTH (mm)
MODEL NAME AND DIMENSIONS
NAMES AND FUNCTIONS OF EACH PART
AIR FILTER
To prevent dust from coming into the indoor unit.
(Refer page 29)
FRONT PANEL (AIR INLET)
INDOOR UNIT INDICATORS
Light indicator showing the operating condition.
(Refer page 5)
HORIZONTAL DEFLECTOR ●VERTICAL
DEFLECTOR (AIR OUTLET)
(Refer page 21)
REMOTE CONTROL
Send out operation signal to the indoor unit. So as to
operate the whole unit.
(Refer page 7)
840
700
750
298
570
570
248
210
280
DRAIN PIPE
Condensed water drain to outside.
CONNECTING CORD
AIR INLET (BACK)
AIR OUTLET
DRAIN PIPE
Condensed water drain to outside.
CONNECTING CORD
AIR INLET (BACK)
AIR OUTLET
RAC-10EX9
RAC-13EX9

ENGLISH
– 5 –
INDOOR UNIT INDICATORS
TEMPORARY SWITCH
●Hold both sides of the front panel and lift up.
●When the works are done, follow the opposite direction
to close it. (When the “click” sound is heard, it means
the panel is closed properly.)
DEHUMIDIFY LAMP
This lamp lights during dehumidifying.
AIR PURIFIER LAMP
This lamp lights when the device is configured to air
purifier.
OPERATION LAMP
This lamp lights during operation.
TIMER LAMP
This lamp lights when the timer is working.
AIR EXHAUST LAMP
This lamp lights when the exhaust is operating.
SUPER COOLING LAMP
This lamp lights when the device is configured to super
cooling.
AIR EXCHANGER LAMP
This lamp lights when the ventilation is operating.
Use this switch to start and stop when the remote
controller does not work.
●By setting 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.
Front Panel
Temporary Switch

–6 –
NAMES AND FUNCTIONS OF EACH PART
AIR EXCHANGER SELECTION SWITCH
Prohibit Air
Exchanger
Only Exhaust
Operate Air
Exchanger
OPERATE
AIR
EXCHANGER
Select the switch when using air-exchanger
operation. In normal condition, please use this
mode.
This mode is set initially from manufacturer.
Select the switch when there is no intake
operation.
This mode is operational when the intake and
exhaust hose cannot directly connect to outdoor.
The hose outlet is located in a space between
inner wall and outer wall, and these space is
connected to outdoor.
Select the switch when air exchanger is
prohibited. When the intake and exhaust hose
cannot connect directly to the outdoor
(installation work specified for the embedded
ducting), or even the hose can be connected to
the outdoor but there is a source of odor, oil or
smoke near the exit of intake and exhaust hose.
ONLY EXHAUST
OPERATE
AIR
EXCHANGER
No matter in which mode the air exchanger selection switch is selected, twin air flow operation and air purifier
operation can be functioned.

ENGLISH
–7 –
NAMES AND FUNCTIONS OF REMOTE CONTROL
REMOTE CONTROL : 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.
Before fixing it, make sure the indoor unit can be controlled from the remote controller.
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.
SILENT Button
Press this button to start silent mode.
SUPER COOLING Button
Press this button to start super cooling mode.
AIR EXCHANGER Button
Press this button to start ventilation mode.
FAN Button
Use this button to increase and decrease fan speed.
TEMPERATURE Button
Use this button to raise or lower the temperature setting.
(Keep pressing and the value will change more quickly.)
TEMPERATURE Indicator
Use this button to indicate temperature of indoor and
outdoor.
SLEEP Button
Use this button to set the sleep timer.
BACK
Press the arrow “”on the back cover and push or pull
to the indicated direction, to open or close the battery cover.

–8 –
NAMES AND FUNCTIONS OF REMOTE CONTROL
ON-TIMER Button
Select the turn ON time.
OFF-TIMER Button
Select the turn OFF time.
TIME Button
Use this button to set and check the time and date.
FUNCTION Selector
Use this button to select the operating mode. Every time you
press this button, the mode will change from AUTO →COOL
→DEHUMIDIFY →CIRCULATION →FAN cyclically.
FAN SPEED Selector
This determines the fan speed. Every time you press this button,
the intensity of circulation will change from AUTO →HI →MED
→LOW cyclically.
RESET Button
Press this button after the batteries are replaced or when some
irregular operation is found.
AUTO SWING Button
Controls the angle of the horizontal air deflector.
PARALLEL WING Button
Use this button to control angle of the vertical air deflector to
parallel.
TIMER Control
Use these buttons to set the timer.
TWIN AIR FLOW Button
Use this button to allow two different air flows circulate in every
corner of room efficiently.
FILTER Button
Press this button when you have cleaned the filter. About 200
hour after this, the FILTER lamp will light to indicate that it is the
time to clean the filter.
RESERVE Button
Time setting reservation.
CANCEL Button
Cancel time reservation.
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.
Precautions for Use

ENGLISH
–9 –
AUTOMATIC OPERATION
The device will automatically determine the mode of operation COOL, or Dehumidify, depending on the
initial room temperature. The selected mode of operation will not change when the room temperature
varies.
■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 COOL or
Dehumidify, depending on the initial room temperature
and outdoor temperature.
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.
1
■CONDITION OF AUTOMATIC OPERATION
START
STOP
Over 27°C COOL
16~27°C
TEMPERATURE
SETTING
FUNCTION
27°C
HIGH at start, LOW after
the preset temperature is
reached.
-
DEHUMIDIFY
-
INITIAL ROOM
TEMPERATURE (APPROX.) FAN SPEED
Slightly lower than the
room temperature LOW
●The selected mode of operation will not change during the operation even though the room temperature
change.

–10 –
˚
C
COOLING OPERATION
Use the device for cooling when the outdoor temperature is 21-42°C.
If humidity is very high (over 80%) indoors, 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 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.
Set the desired room temperature with the TEMPERATURE
button (the display indicates the setting).
The range of 25-28°C is recommended as the
room temperature for cooling.
If the temperature setting is 27°C, the room
temperature will be controlled at around 27°C.
The temperature setting and the actual room temperature may
vary somewhat 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.
1
2
3
START
STOP