Hitachi RAS-10C9G User manual

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ENGLISH
INDOOR UNIT/OUTDOOR UNIT
MODEL
RAS-10C9G/RAC-10C9G
RAS-13C9G/RAC-13C9G
OUTDOOR UNIT INDOOR UNIT
RAS-10C9G
RAS-13C9G
RAC-10C9G
RAC-13C9G
SPLIT TYPE AIR CONDITIONER
Instruction manual Page 1~20
To obtain the best performance and ensure years of trouble free use, please read this instruction manual completely.
Arahan pengendalian Muka surat 21~40
Untuk mendapatkan prestasi yang tinggi dan mengelakkan masalah untuk jangka masa yang lama, sila baca arahan ini
sepenuhnya.

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PRECAUTIONS DURING OPERATION
●Avoid an extended period of direct air flow for your health.
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●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.
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SAFETY PRECAUTION
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Please read the “Safety Precaution” carefully before operating the unit to ensure correct usage of the unit.
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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.
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The sign indicate the following meanings.
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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.
●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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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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Make sure to connect earth line.
Indicates the instructions that must be followed.
The sign in the figure indicates prohibition.
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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 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.
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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.

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PRODUCT PERFORMANCE AND TECHNICAL PARAMETERS
●Fuzzy control
●High performance rotary
compressor
●Low noise air intake system
●Temperature sensing automatic
dehumidification
●Sleep mode with automatic
adjustable temperature controls
●High performance timer
●Remote control swing mode
●Automatic parking air vent grilles
●Automatic fan speed adjustment
●Left right drain hoses
●Automatic functions
●Detachable dust filter screen
●High sensing thermostat
●Unit body with well designed
curves
●3 minute delay circuitry
●3 fan speed selection
●Flared piping joints
●Instant dehumidifying functions
●High performance cooling
functions
Fuzzy control
The common timer controls will always switch on the
air conditioner at a predetermined time that could cause
over cooling, however, with this advanced fuzzy control
system the air conditioner will be either switched on
before preset time or delayed depending on the indoor
temperature changes, allowing the room temperature to
reach the preset temperature within an optimal time
frame, as such it will create an optimal air conditioned
environment and will also provide greater savings on
electrical energy consumption
Low noise air intake system
This newly modified low noise air intake system allows
better and smoother air flows that will provide a quiet
and refreshing environment
Sleep mode with automatic adjustable temperature
controls
After adjusting the sleep mode timer before sleep, the
temperature will be automatically controlled and adjusted
accordingly to the lowering or body temperature during
sleep and lower temperature throughout the night, to
provide a conducive environment for a good sleep.
An hour after setting the sleep mode timer, the air
conditioner will automatically adjust the optimal
temperature; during summer it will be adjusted to 2°C
higher than the preset room temperature, and the timer
can be set at a 1-hour, 2-hour, 3-hour and 7-hour cycle.
All can be set by pressing the control buttons that save
you the trouble to pre-set the required operating modes
before sleep
Temperature sensing automatic dehumidification
Hitachi air conditioners are specially equipped with
précised and reliable temperature sensing automatic
dehumidification function, that automatically operates the
dehumidification whenever the room temperature exceeds
the preset temperature and it stops whenever the room
temperature falls back within the preset temperature as
such it stabilizes the temperature and provides a more
conducive environment for the user
Well designed unit body
The indoor unit incorporates the latest design and has a
non-bulky body that measures 815 X 298 X 208 cm
Fuzzy control
Quiet

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ENGLISH
Air filter
To prevent dust from coming into the indoor unit.
(Refer page 17)
Front panel (Air inlet)
Indoor unit indicators
Light indicator showing the operating condition.
(Refer page 6)
Horizontal deflector ●Vertical deflector
(Air Outlet)
(Refer page 13)
Remote controller
Send out operation signal to the indoor unit. So as to
operate the whole unit.
(Refer page 7)
OUTDOOR UNIT
Drain pipe
Condensed water drain to outside.
Connecting cord
Air inlet (Back, Left side)
Air outlet
WIDTH (mm)
815
700
MODEL
RAS-10C9G, RAS-13C9G
RAC-10C9G, RAC-13C9G
HEIGHT (mm)
298
570
DEPTH (mm)
208
210
MODEL NAME AND DIMENSIONS
INDOOR UNIT
NAMES AND FUNCTIONS OF EACH PART

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ATTACHING AND REMOVING FRONT PANEL
RECEIVABLE INDICATOR FUNCTIONS
●While gripping both the left and right hand edges
[recessed in the front housing] of the front panel,
lift up to open the front panel.
●After completion of job, slightly lift up the front
panel and pull down to close the front panel. Ensure
that the 3 sets of left, centre and right clips are
fully secured.
Signal Receivable Window
Timer Lamp
This lamp lights when the timer is working.
Operation Lamp
This lamp lights during operation.
Filter Lamp
When the device is operated for a total of
about 100 hours, the FILTER lamp lights
to indicate that it is time to clean the filter.
The lamp goes out when the POWER
SWITCH set to OFF and ON again.
OPERATION INDICATOR
TEMPORARY SWITCH
When the remote control device is not functioning, use the
Temporary Switch mode
(1) When the Temporary Switch is pressed, the unit will
operate as per the previous setting. Should there be
a discontinuation of power supply the unit will operate
as per its automatic setting.
(2) Press the Temporary Switch a second time will stop
the operations of the air conditioner unit
AUTO RESTART FUNCTION
In the event of power failure, the air conditioner will restart
automatically.
In the event of power failure during TIMER operation, the
timer will be reset and the unit will begin or stop operating
under a new timer setting.
Temporary Switch On/Off Switch

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ENGLISH
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.
●Transmission sign
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.
●CIRCULATION button
Use this button to set air circulation in the room or start operation.
●DEHUMIDIFYING button
Use this button to reduce water quantity in the room or start operation.
●COOLING button
Use this button to set cooling mode in the room or start operation.
●RESET button
●STOP button
Press this button to stop operation only.
●SLEEP button
Use this button to set the sleep timer.
●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) (during the (FAN) mode, from HI
to MED to LOW).
●AUTO SWING button
Controls the angle of the horizontal air deflector and to turn off filter
lamp.
●TEMPERATURE button
Use this button to raise or lower the temperature setting. (Keep
pressed, and the value will change more quickly.)
●OFF-TIMER button Select the turn OFF time.
●ON-TIMER button Select the turn ON time.
Precautions for Use
●Do not put the remote controller in the following places.
●In 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.
CIRCULATION / START
DEHUMIDIFY / START
COOLING / START
FAN
FAN SPEED
LOW
MED
HI
SLEEP TIMER
STOP
TIMER SELECTOR
ON TIMER
OFF TIMER
AUTO SWING

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COOLING OPERATION
Use the device for cooling when the outdoor temperature is 21-43°C.
If humidity is very high (over 80°C) indoors, some dew may form on the air outlet grille of the indoor unit.
Press the button 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.
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 (COOLING) button. Cooling operation starts with
a beep. Press the (STOP) button 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 (COOLING) button next time.
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STOP
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ENGLISH
DEHUMIDIFYING OPERATION
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.
■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.
■As the settings are stored in memory in the remote controller, you only
have to press the (DEHUMIDIFY) button next time.
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.
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Press the (DEHUMIDIFY) button.
The FAN SPEED is set at LOW automatically.
The FAN SPEED button does not work.
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Press the (DEHUMIDIFY). Dehumidifying operation starts
with a beep. Press the (STOP) button to stop operation.
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STOP

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CIRCULATION OPERATION
Press the button so that the display indicates
(CIRCULATE)..
Press the FAN SPEED button and select the desired FAN
SPEED (the display indicates your choice).
Press the temperature control button to set to the desired
temperature.
■As the settings are stored in memory in the remote controller,
you only have to press the (CIRCULATION) button next time.
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Press the (CIRCULATION) button. Circulating operation
starts with a beep. Press the (STOP) button to stop
operation.
STOP