Hitachi RAS-40CNH2 User manual

SPLIT TYPE
HITACHI
INDOOR UNIT/OUTDOOR UNIT
MODEL
RAS-40CNH2 / RAC-40CNH2
RAS-50CNH2 / RAC-50CNH2
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.
Bedlenungsanleitung Suite 23~44
Bitte lesen Sie diese Bedienungsanleitung aufmerksam
durch, um durch richtige Bedienung jahrelangen und
störungsfreien Betrieb zu gewährleisten.
Mode d’emploi Page 45~66
Des performances optimales et un fonctionnement à long
terme seront assurés en appliquant les présentes
instructions après avoir entièrement lu ce mode d’emploi.
Manuale di istruzioni Pag. 67~88
Per garantire la migliore prestazione e la più lunga
durataleggere attentamente e al completo le seguanti
istruzioni.
RAC-40CNH2
RAC-50CNH2
Manual de instrucciones Página 89~110
Para obtener el mejor funcionamiento y asegurar años de
uso libre de problemas, lea cuidadosamente este manual
de instrucciones.
Manual de instruções Página 111~132
A fim de obter um bom funcionamento e de garantir uma
utilização sem falhas durante muitos anos, é favor ler este
manual de instruções completamente.
O‰ËÁ›Â˜ XÂÈÚÈÛÌÔ‡ ™ÂÏ›‰· 133~154
°È· ÙËÓ Î·Ï‡ÙÂÚË ‰˘Ó·Ù‹ ·fi‰ÔÛË Î·È ÙËÓ Ì·ÎÚÔ¯ÚfiÓÈ·
Î·È ¯ˆÚ›˜ ÚÔ‚Ï‹Ì·Ù· ¯Ú‹ÛË Ù˘ Û˘Û΢‹˜ ·˘Ù‹˜,
·Ú·Î·Ïԇ̠‰È·‚¿ÛÙ Ï‹Úˆ˜ ÙȘ Ô‰ËÁ›Â˜ ¯ÂÈÚÈÛÌÔ‡ Ù˘.
Инструкция по эксплуатации стр. 155~176
Для обеспечения наилууших эксплуатационных
характеристик и многолетней бе отка ной работы
оборудования необходимо полностыо оэнакомиться с
данной Инструкцией по эксплуатации.
“BESTÄIGUNG” und “Bescheingung des Herstellers/Importeurs” sind am Ende dieser Bedienungsanleitung beschrieben.
RAS-40CNH2
RAS-50CNH2
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(EN1) RAS/RAC-40/50CNH2 3/25/05, 2:361

–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 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
A
R
N
I
N
G
!
(EN1) RAS/RAC-40/50CNH2 3/25/05, 2:362

–3 –
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.
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.
(EN1) RAS/RAC-40/50CNH2 3/25/05, 2:363

–4 –
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INDOOR UNIT
OUTDOOR UNIT
WIDTH (mm)
798
850
MODEL
RAS-40CNH2, RAS-50CNH2
RAC-40CNH2, RAC-50CNH2
HEIGHT (mm)
285
650
DEPTH (mm)
183
298
MODEL NAME AND DIMENSIONS
NAMES AND FUNCTIONS OF EACH PART
Air filter
To prevent dust from coming into the indoor unit.
(Refer page 18)
Front panel
Indoor unit indicators
Light indicator showing the operating condition.
(Refer page 5)
Horizontal deflector ●Vertical deflector
(Air Outlet)
(Refer page 16)
Remote controller
Send out operation signal to the indoor unit. So as to
operate the whole unit.
(Refer page 6)
Drain pipe
Condensed water drain to outside.
Connecting cord and insulation pipe for piping
Air inlet (Back, Left and Right side)
Air outlet
In relation to outdoor unit
•Even if operation stops, fan is running
for 10 to 60 seconds to reduce heat
of electric components.
CAUTION
•When heating operation, drain or
defrosted water flows out from outdoor
unit. Don’t stop drain outlet portion in
chilly area so as not to freeze these.
!
(EN1) RAS/RAC-40/50CNH2 3/25/05, 2:364

–5 –
ENGLISH
INDOOR UNIT INDICATORS
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 an hour
when frost forms on the heat exchanger of the
outdoor unit, for 5–10 minutes each time.
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 FILTER
LAMP RESET SWITCH is pushed.
TIMER LAMP
This lamp lights when the timer is working.
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HITACHI
OPERATION INDICATOR
●This figure shows the opening condition of
front panel. Refer to page 18 in relation to
how to open or close the front panel.
AUTO
RESTART
SWITCH
POWER SWITCH
FILTER LAMP RESET SWITCH
After cleaning filters, please
push it.
AUTO
RESTART
SWITCH
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 stop
operating.
(EN1) RAS/RAC-40/50CNH2 3/25/05, 2:365

–6 –
AUTO
HEAT
DEHUMIDIFY
COOL
FAN
FAN SPEED
LOW
MED
HI
SLEEPING
STOP (CANCEL)
START (RESERVE)
START/STOP
TIME
TIMER SET
TIMER SELECTOR
ON TIMER
OFF TIMER
AUTO SWING
˚
CH
RESET
˚
CH
NAMES AND FUNCTIONS OF EACH PART
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.
●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 these 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)
(during the (FAN) mode, from HI to MED to LOW).
●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.
●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.
(EN1) RAS/RAC-40/50CNH2 3/25/05, 2:366

–7 –
ENGLISH
AUTOMATIC OPERATION
The device will automatically determine the mode of operation, HEAT or COOL, 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, HEAT or COOL, depending on the current
room temperature.
●When AUTO is first selected, the device will determines the current
room temperature and accordingly selects the proper operation mode.
●When the air conditioner has adjusted the room’s temperature to the
near preset temperature, it will begin monitor operation. If the room
temperature subsequently changes, the air conditioner will once again
select the appropriate operation (heating or cooling) to adjust the
temperature to the preset temperature. The monitoring operation range
is ±3°C relative to the preset temperature.
●If the mode automatically selected by the unit is not satisfactory,
manually change the mode setting (heat, dehumidify, cool or fan).
●When AUTO has been selected, the device will automatically determine
the mode of operation, HEAT, COOL or Dehumidify, depending on the
current 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
START
STOP
Press the (FAN SPEED) button, AUTO and LOW is available.
°C
RESET
(EN1) RAS/RAC-40/50CNH2 3/25/05, 2:367

–8 –
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) : Quiet.
(LOW) : More quiet.
Set the desired room temperature with the TEMPERATURE
buttons (the display indicates the setting).
The range of 18-22°C is recommended as the
room temperature for heating.
If the temperature setting is 20°C, the room
temperature will be controlled at around 20°C.
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.
However, if operation stops with fan speed of “LOW”, fan speed is
automatically set to “AUTO”next time.
1
2
3
START
STOP
˚C
RESET
˚C
(EN1) RAS/RAC-40/50CNH2 3/25/05, 2:368

–9 –
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.
■When you want to change the operation mode, please use the FUNCTION
selector.
■Set the desired temperature is available.
■You also can use the FUNCTION selector to select this operation.
■When dehumidifying is done using the (DEHUMIDIFY) button, the ON/
OFF timer cannot be used.
If the ON/OFF timer has been set, and the (DEHUMIDIFY) button is
pressed, the setting of the ON/OFF timer will be canceled.
■If you wish to use the ON/OFF timer, perform the dehumidifying operation
using the FUNCTION selector.
■When dehumidifying is done using the (DEHUMIDIFY) button, the set
time on the SLEEP timer can be changed using the SLEEP TIMER button.
Press the (DEHUMIDIFY) button.
Operation start with a beep.
The FAN SPEED is set at LOW automatically.
The FAN SPEED button does not work.
Press the (START/STOP) button.
1
STOP
■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 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.
RESET
˚C
(EN1) RAS/RAC-40/50CNH2 3/25/05, 2:369

– 10 –
COOLING OPERATION
Use the device for cooling when the outdoor temperature is 22-42°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) : Quiet.
(LOW) : More quiet.
Set the desired room temperature with the TEMPERATURE
buttons (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.
However, if operation stops with fan speed of “LOW”, fan speed is
automatically set to “AUTO” next time.
1
2
3
START
STOP
˚
C
RESET
˚
C
(EN2) RAS/RAC-40/50CHN2 3/25/05, 2:3810

–11 –
ENGLISH
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.*
Press the (START/STOP) button. Fan operation starts with
a beep. Press the button again to stop operation.
1
2
START
STOP
* Note •In the fan operation mode, only display of FAN SPEED
setting will change by pressing FAN SPEED button; the
actual fan speed cannot be changed directly from HI to
LOW mode.
FAN SPEED (AUTO) ..... When the AUTO fan speed mode is set in the cooling/heating operation:
For the heating operation
●The fan speed will automatically change according to the temperature
of discharged air.
●When the difference of room temperature and setting temperature is
large, fan starts to run at HI speed.
●When the room temperature reaches setting temperature, fan speed
changes to LOW automatically.
●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
RESET
(EN2) RAS/RAC-40/50CHN2 3/25/05, 2:3811

–12 –
HOW TO SET THE TIMER
ON/OFF-Timer
●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.
OFF-Timer
You can set the device to turn off
at the present 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 Set the current month and
day with the TIMER control
button.
1 Press the (OFF-TIMER)
button. The (OFF) mark blinks
on the display.
1 Press the (ON-TIMER)
button the (ON) mark blinks
on the display.
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.
NOTE
You can set only one of the OFF-timer,
ON-timer and ON/OFF-timer.
ON-Timer
Time, Day, Month
●The device will turn on
at the designated times.
TIME, DAY,
MONTH
(current time,
day, month)
OFF TIMER
ON TIMER
RESERVE
CANCEL
M D
M D
AM
STOP
Start
AM
Start
Stop
PM
Start Stop
PM
AM
PM
RESET
(EN2) RAS/RAC-40/50CHN2 3/25/05, 2:3812

–13 –
ENGLISH
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.
●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 Set 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 automatically turn on earlier so that the preset
temperature can be reached 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 then automatically
turn on earlier so that the preset temperature can be reached
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.
PM PM
AM PM
PM
PM
AM AM
AM
AM
PM PM
(EN2) RAS/RAC-40/50CHN2 3/25/05, 2:3813

–14 –
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
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. 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 turn
on early so that the preset
temperature will be almost reached
at 6:00 next morning.
SLEEP
H
H
AM
AM
Sleep
timer Start
H
(EN2) RAS/RAC-40/50CHN2 3/25/05, 2:3814

–15 –
ENGLISH
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 30 minutes after the
setting of the sleep timer.
Fan
“”
Heating
“”
The room temperature will be
controlled 5°C below the
temperature and the FAN
SPEED will be set to LOW
setting 30 minutes after the
setting of the sleep timer.
Operation with the sleep timer
The room temperature is kept
at about 12°C minimum.
The room temperature is kept
at about 25–28°C.
Sleep timer set
30 minutes later1 hour later 3 hours later
7 hours
later
2 hours
later
5°C
●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 earlier.
●You can not set other timer during sleep timer operation.
●After sleep timer is time-up and when press sleep button again, the sleep timer will be set as
last setting.
●Sleep timer effective only once.
NOTE
Sleep
timer set
30 minutes later 3 hours later
7 hours later
2 hours
later
6 hours
later
2°C
(EN2) RAS/RAC-40/50CHN2 3/25/05, 2:3815

–16 –
ADJUSTING THE AIR DEFLECTORS
1
Adjustment of the conditioned air in the upward and
downward directions.
The horizontal air deflector is automatically set to the
proper angle suitable for each operation. The deflector
can be swung up and down continuously and also set to
the desired angle using the “(AUTO SWING)”
button.
●If the “(AUTO SWING)”button is pressed
once, the horizontal air deflector swings up and
down. If the button is pressed again, the deflector
stops in its current position. Several seconds (about
6 seconds) may be required before the deflector
starts to move.
●Use the horizontal air deflector within the adjusting
range shown in the right figure.
●When the “(AUTO SWING)”button is
pressed while the operation is stopped, the horizontal
air deflector moves and stops at the position where
the air outlet closes.
●When the auto swing operation is performed, if the
horizontal air deflector is moved manually, the
swinging range may drift. However, it will return to
the original operation range after a short time.
2
Adjustment of the conditioned air to the left and right.
Hold the vertical air deflector as shown in the figure and
adjust the conditioned air to the left and right.
CAUTION
●When operating the unit in cooling operation with the air deflector facing down and moving
automatically for a long period of time, water will condensed on the air deflector and drips
down occasionally. This will wet your furniture.
!
about 57°When cooling,
dehumidifying
about 15°
about
40°
about 30°
When heating
RESET
(EN2) RAS/RAC-40/50CHN2 3/25/05, 2:3816

–17 –
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.
=
2
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
Push and pull to the
direction of arrow
POWER SWITCH OR CIRCUIT BREAKER
When you do not use the room air conditioner, set the power switch or circuit breaker to “OFF”.
The Air Conditioner And The Heat Source In The Room
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.
FOR USER’S INFORMATION
Suitable Room Temperature Ventilation
Warning
Freezing temperature
is bad for health and a
waste of electric power.
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.
!
!
!!
(EN2) RAS/RAC-40/50CHN2 3/25/05, 2:3817

–18 –
ATTACHING THE AIR CLEANSING AND DEODORIZING FILTERS
Before installation, be sure to stop the operation by using the remote controller.
1
Open the front panel.
●Pull up the front panel holding it at both sides by both
hands and open till it locks.
2
Remove the filters.
3
Attaching the air cleansing and deodorizing filters to
indoor unit.
●Attach the air cleansing and deodorizing filters to the
frame.
NOTE
●In case of removing the air cleansing and deodorizing filters, please follow the above procedures.
●Air cleansing deodorizing filters is disposable. Replacement every three months is recommended.
●Don’t operate the unit without filter. Fault may occur if you continue.
4
Attach the filters.
●Attach the filters which are placed the surface written
“FRONT”up.
●After attaching the filters, push the front panel at three
arrow portion as shown in figure and close it.
Claws
(4 places)
(EN2) RAS/RAC-40/50CHN2 3/25/05, 2:3818

–19 –
ENGLISH
MAINTENANCE
Before the cleaning, stop operation and disconnect the power supply.
1. AIR FILTER
PROCEDURE
CAUTION
1
Open the front panel.
●Pull up the front panel holding it at both sides by both
hands and open till it locks.
2
Remove the filters.
3
Remove dust of the filters using a vacuum cleaner.
●After using neutral detergent, wash with clean water
and dry in shade.
●You cannot wash the air cleansing and deodorizing
filter.
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.
●Don’t operate the unit without filter. Fault may occur if you continue.
Clean the air filters immediately as the filter lamp lights.
!
!
4
Turn off the filter lamp to push the filter lamp reset
switch.
(Refer to page 5)
Attach the filters.
●Attaching the filters which are placed the surface written
“FRONT”up.
●After attaching the filters, push the front panel at three
arrow portion as shown in figure and close it.
5
(EN2) RAS/RAC-40/50CHN2 3/25/05, 2:3819

–20 –
2. CLEANING OF FRONT PANEL
CAUTION
●Do not spray water on the unit. It may cause an electric shock.
!
The front panel can be washed in water. It can be kept clean at all times.
●Front panel can be removed and washed in water. Clean it using a soft
sponge, etc. If detergent is used, rinse well.
When the air conditioner is to be cleaned without removing the front
panel, clean both the body and remote controller with a dry soft cloth.
●Wipe off water completely. If water remains on the display section or
light receiver section, this could cause a malfunction.
●For removing and attaching method of the front panel, please refer to
the Installation Manual.
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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.
!
3. MAINTENANCE AT BEGINNING OF LONG OFF PERIOD
●Running the unit setting the operation mode to (FAN) and the fan
speed to HI for about half a day on a fine day, and dry the whole of
the unit.
●Turn off the circuit breaker or disconnect the power plug.
Air
Blow
(EN2) RAS/RAC-40/50CHN2 3/25/05, 2:3920