Hitachi RAS-18C9 User manual

ENGLISH
– 1 –
INDOOR UNIT/OUTDOOR UNIT
MODEL
RAS-18C9/RAC-18C9
OUTDOOR UNIT INDOOR UNIT
Instruction manual Page 1~22
To obtain the best performance and ensure years of trouble free use, please read this instruction manual completely.
Arahan pengendalian Muka surat 23~44
Untuk mendapatkan prestasi yang tinggi dan mengelakkan masalah untuk jangka masa yang lama, sila baca arahan
ini sepenuhnya.
RAS-18C9
RAC-18C9
SPLIT TYPE AIR CONDITIONER

– 2 –
!
SAFETY PRECAUTION
●
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.
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
R
N
I
N
G
!
●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 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.
!
Make sure to connect earth line.
Indicates the instructions that must be followed.
The sign in the figure indicates prohibition.
W
A
R
N
I
N
G
!

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 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.
C
A
U
T
I
O
N
!
●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.

– 4 –
INDOOR UNIT
NAMES AND FUNCTIONS OF EACH PART
Air filter
To prevent dust from coming into the indoor unit.
(Refer page 17)
Front panel
Indoor unit indicators
Light indicator showing the operating condition.
(Refer page 5)
Horizontal deflector ●Vertical deflector
(Air Outlet)
(Refer page 12)
Remote controller
Send out operation signal to the indoor unit. So as to
operate the whole unit.
(Refer page 6)
OUTDOOR UNIT
Drain pipe
Condensed water drain to outside.
Connecting cord and insulation pipe for piping
Air inlet (Back and Left side)
Air outlet
WIDTH (mm)
1030
750
MODEL
RAS-18C9
RAC-18C9
HEIGHT (mm)
295
570
DEPTH (mm)
190
280
MODEL NAME AND DIMENSIONS

ENGLISH
– 5 –
INDOOR UNIT INDICATORS
AUTO RESTART SWITCH
●In the event of power failure, the air conditioner will restart automatically in the previously selected mode once
the power is restored.
●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.
OPERATION INDICATOR
●This figure shows the opening condition of
front panel. Refer to page 16 in relation to
how to open or close the front panel.
OPERATION LAMP
This lamp lights during operation.
TIMER LAMP
This lamp lights when the timer is working.
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”.
AUTO
RESTART
SWITCH
AUTO
RESTART
SWITCH
HITACHI

–6 –
NAMES AND FUNCTIONS OF REMOTE CONTROL UNIT
■This controls the operation function and timer setting of the room air conditioner. The range of
control is about 4 meters. If indoor lighting is controlled electronically, the range of control may be
shorter.
Precautions for Use
●Do not put the remote controller in direct
sunlight and high temperature.
●Do not drop it on the floor, and protect
it from water.
●If you press the FUNCTION selector
button during operation, the air
conditioner may stop for about 3 minutes
for protection before you can start it
again. (unless you turn off and on again
the power source)
You can use the remote controller by fixing it on the
wall with the accessory parts.
●Before fixing it,
make sure the
unit can be
controlled by the
remote control
unit at the fixing
position.
REMOTE
CONTROLLER
HOLDER

ENGLISH
–7 –
AUTOMATIC OPERATION
■The device will automatically determine the operation mode either COOL or DEHUMIDIFY, depending
on the initial room temperature.
1
Press the (START/STOP) button
●Operation start with a “beep”.
Press the (START/STOP) button
●Please make sure you have been selected the (Automatic) mode
by use the (FUNCTION) Button.
●The fan speed selector does not work at this operation.
STOP
Press the (ROOM TEMPERATURE) button
●Temperature setting change by 1°C for each 1 time press.
Up
Down
●You can raise or lower the temperature setting by a maximum of
3°C.
●The display does not indicate the preset temperature in the Automatic
mode. Device will receive the setting by a “beep”.
■You can slightly adjust the room temperature.
1
°C
°C
■CONDITION OF AUTOMATIC OPERATION
●The selected mode of operation will not change during the operation even though the room
temperature change.
Over 27°C COOL
16 ~ 27°C
FUNCTION
27°C
Slightly lower than the
room temperature LOW
FAN SPEED
HIGH at start, MEDIUM or
LOW after the preset
temperature is reached
DEHUMIDIFY
-
INITIAL ROOM
TEMPERATURE (APPROX.)
TEMPERATURE
SETTING
▲ ▲
-

–8 –
CIRCULATION OPERATION
■When the room temperature is higher than the thermostat set temperature, only the fan operates to
circulate the upper hotter air downwards. This makes temperature distribution of the room evenly at
heating.
1
Press the (START/STOP) button
●Operation start with a signal received sound “beep”.
Press the (START/STOP) button
●Make sure you have been select the (Circulate) mode by using
the (FUNCTION) Button.
●You can select the fan speed and desired temperature.
●This operation is useful in winter when using other heating equipment.
STOP
HOW TO SET THE SLEEP TIMER
Mode
Sleep timer
Indication
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.
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.
NOTE
If you set the sleep timer when the off-timer or
on/off-timer has been set earlier, the sleep timer
becomes effective instead of the off- or on/off-
timer set earlier.
Example: Setting 3 hours
sleep time.

ENGLISH
–9 –
Cooling
“”
and
dehumidifying
“”
Explanation of the sleep timer
The device will control the FAN SPEED and room temperature automatically so as to be quiet and
good for people’s health.
You can set the sleep timer to turn off after 1, 2, 3 or 7 hours. The FAN SPEED and room
temperature will be controlled as shown below.
Function Operation
The settings of room temperature and circulation are varied.
The room temperature will be
controlled 2°C above the
temperature and the FAN
SPEED will be set to LOW
setting 1 hour after the setting
of the sleep timer.
Fan
“”
Operation with the sleep timer
●If date or current time is not set, sleep timer can not be set.
●If you set the sleep timer after the off-, on/off- or off/on-timer has been set, the sleep timer
becomes effective instead of the off-, on/off- or off/on-timer set.
●You can not set other timer during sleep timer operation.
NOTE
Sleep
timer set
1 hour 3 hours later
7 hours later
2 hours
later
6 hours
later

–10 –
MANUAL OPERATION [Cooling ●Dehumidify ●Circulation]
■Please use under below condition when you want to set the function mode, room temperature and
fan speed by manually.
DEHUMIDIFYING
Room Temperature 16°C above
COOLING
Outdoor Temperature 22-42°C
1
OPERATION MODE SELECTION
●Every time you press the button, the mode will change as the below
sequence
(Auto) [(Cool) [(Dehumidify) [(Circulation)
4
Press the (START/STOP) button
●Operation start with a signal received sound “beep”.
Press the (START/STOP) button
●As the settings are stored in memory in the remote control unit, you
only have to press the (Start/Stop) button next time.
STOP
2
ROOM TEMPERATURE SETTING
Up
Down
●The cooling operation does not start if the
temperature setting is higher than the current
room temperature.
°C
Dehumidify 16~26°C
Cooling 25~28°C
▲ ▲
3
FAN SPEED SETTING
●Every time you press the button, fan speed will change as the below sequence.
●COOLING
CIRCULATION
NOTE
(Auto) : The FAN SPEED is HIGH at first and varies to MED or LOW
automatically when the preset temperature has been reached.
●DEHUMIDIFYING : LOW (FIXED)
: ( )
}
Dehumidify 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 with
the room temperature set slightly lower than the current room temperature, whatever 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.
:AUTO [HIGH [MED [LOW
:( [[[)
■Recommend Temperature