Hitachi RAF-25PXA User manual

INDOOR UNIT/OUTDOOR UNIT
MODEL
RAF-2508! / RAC-25&8!
RAF-3508! / RAC-35&8!
RAF-5008! / RAC-50&8!
OUTDOOR UNIT
RAF-2508!
RAF-3508!
RAF-5008!
SPLIT TYPE AIR CONDITIONER
RAC-25&8!
RAC-35&8!
RAC-50&8!
INDOOR UNIT
1 RAF RAC25FX8 EN(B) p65 11/04/2008 02:35 pm1
Instruction manual Page 1~
To obtain the best performance and ensure years of
trouble free use,please read this instruction manual
completely.
Manual de instrucciones Página ~
Para obtener el mejor funcionamiento y asegurar años
de uso libre de problemas,lea cuidadosamente este
manual de instrucciones.
Bedienungsanleitung Seite ~
Bitte lesen Sie diese Bedienungsanleitung aufmerksam
durch,umdurch richtige Bedienung jahrelangen und
störungsfreien Betrieb zu gewährleisten.
Manual de instruções Página ~
Afimde obter umbomfuncionamento e de garantir
uma utilização semfalhas durante muitos anos,é favor
ler este manual de instruções completamente.
Mode d’emploi Page ~
Des performances optimales et un fonctionnement à
long terme seront assurés en appliquant les présentes
instructions après avoir entièrement lu ce mode
d’emploi.
O‰ËÁ›Â˜ ¯Ú‹Ûˆ˜ ÛÂÏ›‰· ~
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Î·È Ë ¯ˆÚ›˜ ‚Ï¿‚˜ Ì·ÎÚÔÚfiıÂÛÌË ¯Ú‹ÛË Ù˘
Û˘Û΢‹˜, ‰È·‚¿ÛÙ fiϘ ÙȘ οوıÈ Ô‰ËÁ›Â˜.
Manuale di istruzioni Pag.~
Per garantire la migliore prestazione e la più lunga
durataleggere attentamente e al completo le seguanti
istruzioni.
àÌÒÚÛ͈Ëfl ÔÓ ˝ÍÒÔÎÛ‡Ú‡ˆËË ÒÚ. ~1
ÑÎfl o·ecÔe˜eÌËfl ÌaËÎyÛ¯Ëx ˝ÍcÔÎyaÚaˆËoÌÌ˚x
xapaÍÚepËcÚËÍ Ë ÏÌo„oÎeÚÌeÈ ·eÁoÚÍaÁÌoÈ pa·oÚ˚
o·opy‰o‚aÌËfl Ìeo·xo‰ËÏo ÔoÎÌocÚ¸˛ oÁÌaÍoÏËÚ¸cfl
c ‰aÌÌoÈ àÌcÚpy͈ËeÈ Ôo ˝ÍcÔÎyaÚaˆËË.
1~12 49~60
13~24 61~72
25~36 73~84
37~48
85~97

PRECAUTIONS DURING OPERATION
WARNING
WARNING
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 signs indicate the following meanings. (The following are examples of signs.)
•Please keep this manual after reading.
•Donot reconstruct the unit.
Water leakage, fault, short circuit or fire may occur if you reconstruct the unit by
you rself.
•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.
Donot 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 or fire.
•Besure 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 acircuit breaker, the danger of electric shock exists.
•Donot install the unit near alocation where there is flammable gas. The outdoor unit
may catch fire if flammable gas leaks around it. Piping shall be suitable supported
with amaximum spacing of 1m between the supports.
•Please ensure smooth flow of water when installing the drain hose.
•Make sure that asingle phase 230V power source is used.
The use of other power sources may cause electrical components to overheat and
lead to fire.
PRECAUTIONS DURING INSTALLATION
PROHIBITION
WARNING
CAUTION
•Avoid an extended period of direct air flow for your health.
•Should abnormal situation arise (like burning smell), please stop operating the unit
and remove plug from the socket. 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.
PRECAUTIONS DURING SHIFTING OR MAINTENANCE
•Donot use any conductor as fuse wire, this could cause fatal accident.
•During thunder storm, disconnect the plug top and turn off the circuit breaker.
•Donot put objects like thin rods into the panel of blower and suction side because
the high-speed fan inside may cause danger.
•Spray cans and other combustibles should not be located within ameter of the air
outlets of both indoor and outdoor units.
Asaspray can’s internal pressure can be increased by hot air, arupture may result.
PROHIBITION
PROHIBITION
PROHIBITION
"OFF"
This sign in the figure indicates prohibition.Indicates the instructions that must be followed.
"OFF"
PROHIBITION
CONNECT EARTH LINE
PROHIBITION
•This appliance is not to be used by children or persons with reduced physical, sensory or mental
capabilities, or lack of experience and knowledge, unless they have been given supervision or
instruction. Children must be supervised not to play with the appliance.
PROHIBITION
1 RAF RAC25FX8 EN(B) p65 11/04/2008 02:35 pm2
– 2 –

ENGLISH
DEUTSCHFRANÇAISITALIANOSPANISHPORTUGUÊS∂ÏÏËÓÈοРУССКИЙ
•Donot place plants directly under the air flow as it is bad for the plants.
•Donot 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.
•The product shall be operated under the manufacturer specification and not for any
other intended use.
PRECAUTIONS DURING OPERATION
CAUTION
•Donot attemptto 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.
•Please ensure that outdoor mounting frameis always stable, firm and without
defect. Ifnot, the outdoor unit may collapse and cause danger.
•Donot wash the unit with water or place awater container such as avase on the
indoor unit.
Electrical leakage could be present and cause electric shock.
•Besure to stop the operation by using the remote controller 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 be operated for along period.
•Donot climbon the outdoor unit or put objects on it.
•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 along period of time, water will condense on the air deflector and dripsdown
occasionally. This will wet your furniture. Therefore, do not operate under such
condition for along time.
•Ifthe 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.
•Indoor unit cleaning must be performed by authorized personnel only. Consult your
sales agent.
Using acommercially available detergent or similar can damage the plastic parts
or clog the drain pipe, causing water to drip with potential electric shock hazard.
•Donot touch the air outlet, bottom surface and aluminum fin of the outdoor
unit.
You may get hurt.
•Donot touch the refrigerant pipeand connecting valve.
Burns may result.
PROHIBITION
DON'T WET
PROHIBITION
PROHIBITION
PROHIBITION
DON’T TOUCH
"OFF"
PROHIBITION
PROHIBITION
PROHIBITION
PROHIBITION
PROHIBITION
DON’T TOUCH
STRICTLY OBSERVE
PRECAUTIONS
"OFF"
1 RAF RAC25FX8 EN(B) p65 11/04/2008 02:35 pm3
– 3 –

– 2 –
PREPARATION BEFORE OPERATION
■To install the batteries
■To fix the remote controller holder to the wall
1. Slide the cover to take it off.
2. Install two dry batteries AAA.R03.
The direction of the batteries should match the
marks in the case.
3. Replace the cover at its original position.
1. Choose a place from where the signals can reach the unit.
2. Fix the remote controller holder to a wall, a pillar or similar
location with the provided screws.
3. Place the remote controller in the remote controller holder.
NOTE
Notes on batteries
●When replacing the batteries, use batteries of the same
type, and replace both old batteries together.
●When the system is not used for a long time, take the
batteries out.
● The batteries will last for approximately 1 year. However, if
the remote controller display begins to fade and degradation
of reception performance occurs within a year, replace both
batteries with new size AAA.R03.
● The attached batteries are provided for the initial use of
the system.
The usable period of the batteries may be short depending
on the manufactured date of the air conditioner.
Notes on the remote controller
● Never expose the remote controller to direct sunlight.
● Dust on the signal transmitter or receiver will reduce the
sensitivity. Wipe off dust with soft cloth.
● Signal communication may be disabled if an electronic-
starter-type fluorescent lamp (such as inverter-type lamps)
is in the room. Consult the shop if that is the case.
●If the remote controller signals happen to operate another
appliance, move that appliance to somewhere else, or
consult the service shop.
●When the remote controller is not in use, please close the
slide cover to prevent failure.
Remote controller
Screws
Remote controller holder
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– 3 –
PREPARATION BEFORE OPERATION
■To set calendar and clock
1. Press (RESET) button when first time setting.
"Year" blinks.
2. Press (TIME) button to set the current year.
3. Press (CLOCK) button. "Day" and "Month"
blink.
4. Press (TIME) button to set the current day and
month.
5. Press (CLOCK) button. "CLOCK" blinks.
6. Press (TIME) button to set the clock to the current
time.
7. Press (CLOCK) button.
Calendar and clock are set.
To modify the calendar and clock, press (CLOCK)
button.
Then follow steps 1 to 7.
Calendar and clock need to be set again after changing
batteries.
After changing the batteries,
1. Press (RESET) button.
2. Direct remote controller towards indoor unit and press
(INFO) button.
3. The calendar and clock from indoor unit will be transmitted.
■Calendar and clock will not be transmitted from indoor
unit when the following occurs:
● When there is a power failure.
● When breaker is OFF by user (unit is not in STANDBY
MODE).
(;7(1'('
6:,1*
NOTE
Note on setting the calendar and clock.
●If the calendar and clock are not set, the ON-timer, OFF-timer and Weekly Timer cannot be set.
●If the calendar and clock are not set correctly, the ON-timer, OFF-timer and Weekly Timer will not
operate correctly.
●When the ON-timer, OFF-timer and Weekly Timer are set, the calendar and clock cannot be changed.
If there is a need to change the calendar and clock, ON-timer, OFF-timer and Weekly Timer need to
be cancelled.
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– 4 –
NAMES AND FUNCTIONS OF REMOTE CONTROLLER
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.
●When remote controller is not in use for about 3 minutes during OFF condition, indicated by on the
display, the LCD will turn off.
●During clock setting, the LCD will turn off about 10 minutes later if the remote controller is not in use.
●When pressing any button, the LCD will turn on.
●The LCD will not turn off during TIMER setting.
Signal Transmitting/Receiving
Window
Point this window towards the
indoor unit when controlling it.
Sensor
A temperature sensor inside the
remote controller senses ambient
temperature around the remote-
controller.
Display
This indicates the room temperature
selected, current time, timer status,
function and airflow rate selected.
ROOM TEMPERATURE setting Buttons
Press these buttons to set the room
temperature.
Press the [ ] button to raise the room
temperature.
Press the [ ] button to lower the room
temperature.
Keep pressing and the value will change
more quickly.
ECO Button
Use this button to set the ECO
mode. ( p. 13)
START/STOP button
Press this button to start
operation. Press it again to stop
operation.
FAN SPEED selector Button
This determines the fan speed. Every
time you press this button, the airflow
rate will change from (AUTO)
➞(HIGH) ➞(MED) ➞
(LOW) ➞(SILENT) (This
button allows selection of optimal
or preferred fan speed for each
operation mode).
Transmission sign
The transmission sign lights up
when a signal is sent.
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– 5 –
MODE SELECTOR
AUTO
HEAT
DEHUMIDIFY
COOL
FAN
FAN SPEED
AUTO
SILENT
LOW
MED
HIGH
START / STOP
ECO
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 MODE selector button during operation, the device may stop for about 3 minutes for
protection.
POWERFUL Button
Use this button to set the
POWERFUL mode. ( p. 11)
INFORMATION Button
( p. 25)
ONE TOUCH CLEAN Button
(p. 15)
ON / OFF TIMER setting Buttons
(p. 16)
MODE selector Button
Use this button to select the
operating mode. Every time you
press this button, the mode will
change from (AUTO) ➞
(HEAT) ➞(DEHUMIDIFY)
➞ (COOL) and ➞(FAN)
cyclically.
SILENT Button
Use this button to set the SILENT
mode. ( p. 12)
AUTO SWING (Vertical) Button
Controls the angle of the
horizontal air deflector.
EXTENDED AIRFLOW button
Pushes air out further for an
extended airflow.
WEEKLY TIMER setting Buttons
(p. 19)
LEAVE HOME Button
(p. 14)
NAMES AND FUNCTIONS OF REMOTE CONTROLLER
(;7(1'('
6:,1*
ECO SLEEP TIMER Button
Use this button to set the ECO
sleep timer. ( p. 17)
FAN
POWERFUL
SILENT
INFO
SLEEP TIMER
AUTO SWING (VERTICAL)
EXTENDED AIRFLOW
LEAVE HOME
CLEAN
DAY
PROGRAM NO.
ON / OFF TIMER
TIME
OK
DELETE
COPY / PASTE
CANCEL
SEND
CLOCK
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– 6 –
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6:,1*
AUTOMATIC OPERATION
The device will automatically determine the mode of operation, HEAT or COOL 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 is 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.
2. Auto Restart Control is not available when Timer or Sleep Timer mode is set.
■As the settings are stored in the memory of the remote controller, you
only have to press the (START/STOP) button next time.
Press the MODE selector button 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. However the mode of operation will
not change when indoor unit is 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 (FAN SPEED) button to select AUTO, HIGH, MED, LOW
or SILENT.
Press the (START/STOP) button.
Operation starts with a beep.
Press the button again to stop operation.
Set the desired room temperature with the TEMPERATURE buttons
(the display indicates the setting).
The temperature setting and the actual room temperature may vary
depending on conditions.
START
STOP
1
Set the desired FAN SPEED with the (FAN SPEED) button (the
display indicates the setting).
(AUTO) (HIGH) (MED)
(SILENT) (LOW)
2
3
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– 7 –
HEATING OPERATION
(;7(1'('
6:,1*
●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 maintain reliability of the device, please use this device when outdoor temperature is above
–15°C.
Press the MODE selector button so that the display indicates
(HEAT).
Set the desired FAN SPEED with the (FAN SPEED) button
(the display indicates the setting).
(AUTO) (HIGH) (MED)
(SILENT) (LOW)
Set the desired room temperature with the TEMPERATURE buttons
(the display indicates the setting).
The temperature setting and the actual room temperature may
vary 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 the memory of the remote controller, you
only have to press the (START/STOP) button next time.
■During AUTO fan, the fan speed automatically changes as below:
● When the difference between room temperature and setting temperature
is large, fan starts to run at HI speed.
● After room temperature reaches the preset temperature, fan speed
will be changed to lower speed to obtain optimum room temperature
condition for natural healthy heating.
START
STOP
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 a cycle of 3 seconds on and 0.5 second off.
The maximum time for defrosting is 20 minutes.
However, if the indoor unit 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 is likely to form.)
1
2
3
Defrosting
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– 8 –
(;7(1'('
6:,1*
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 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 ROOM
TEMPERATURE setting buttons (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 the memory of the remote controller, you
only have to press the (START/STOP) button next time.
Press the MODE selector button so that the display
indicates (DEHUMIDIFY).
The fan speed is set at LOW.
Press (FAN SPEED) button to select SILENT or LOW fan
speed.
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.
1
2
START
STOP
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– 9 –
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6:,1*
COOLING OPERATION
Use the device for cooling when the outdoor temperature is -10~ 43°C.
If indoors humidity is very high (80%), some dew may form on the air outlet grille of the indoor unit.
Press the MODE selector button so that the display indicates
(COOL).
■ As the settings are stored in the memory of the remote controller, you
only have to press the (START/STOP) button next time.
■ During AUTO fan, the fan speed automatically changes as below:
●When the difference between room temperature and setting tem-
perature is large, fan starts to run at HI speed.
● After room temperature reaches the preset temperature, fan speed
will be changed to lower speed to obtain optimum room temperature
condition for natural healthy cooling.
START
STOP
1
3
Set the desired FAN SPEED with the (FAN SPEED) button (the
display indicates the setting).
(AUTO) (HIGH) (MED)
(SILENT) (LOW)
Set the desired room temperature with the TEMPERATURE buttons
(the display indicates the setting).
The temperature setting and the actual room temperature may vary
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 user set the temperature
below the current room temperature.
2
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– 10 –
FAN OPERATION
EXTENDED AIRFLOW OPERATION
User can use the device simply as an air circulator.
START
STOP
(;7(1'('
6:,1*
1Press the MODE selector so that the display indicates
(FAN).
Set the desired FAN SPEED with the (FAN SPEED) button (the
display indicates the setting).
(HIGH) (MED) (LOW) (SILENT)
Press the (START/STOP) button. Fan operation starts with a beep.
Press the button again to stop operation.
■To start Extended Airflow operation
● Press (EXTENDED AIRFLOW) button during operation.
“ ” is displayed on the LCD.
The airflow direction will automatically set according to the type of operation and the fan speed will
change to allow air to blow further. (During cooling operation, fan speed will return to the original
position after 3 hours.)
• If the (EXTENDED AIRFLOW) button is pressed while the AUTO SWING mode is set, the
AUTO SWING mode is cancelled and the EXTENDED AIRFLOW mode is set.
• If the (AUTO SWING) button is pressed while the EXTENDED AIRFLOW mode is set, the
EXTENDED AIRFLOW mode is cancelled and the AUTO SWING mode is set.
• If the (EXTENDED AIRFLOW) button is pressed when the horizontal air deflector stops at
your preferred angle, the deflector will change to EXTENED AIRFLOW.
• Press (EXTENDED AIRFLOW) button to lower the room temperature quickly when the
temperature is high during the cooling operation.
(;7(1'('
6:,1*
(;7(1'('
6:,1*
NOTE
●During cooling and dehumidi-
fying operation, do not keep
the deflectors swinging or in
the lower position (in the case
of vertical auto swing) for a
long time. It may cause dew
condensation on the deflectors.
AUTO SWING OPERATION
VERTICAL SWING
■To start Vertical Auto Swing
■To cancel Vertical Auto Swing
● Press (AUTO SWING (VERTICAL)) button. The deflector(s) will start to swing
up and down.
is displayed on the LCD.
● Press (AUTO SWING (VERTICAL)) button again. The deflector(s) will stop in
the current position.
disappeared from the LCD.
2
■To cancel Extended Airflow operation
● Press (EXTENDED AIRFLOW) button again.
EXTENDED AIRFLOW operation stops.
“ ” disappears from LCD.
5&0$18$/5$5(%RRNLQGE 

– 11 –
POWERFUL OPERATION
● By pressing (POWERFUL) button during AUTO, HEATING, DEHUMIDIFYING, COOLING or FAN
operation, the air conditioner performs at the maximum power.
●During POWERFUL operation, cooler or warmer air will be blown out from indoor unit for COOLING or
HEATING operation respectively.
■To start POWERFUL operation
■To cancel POWERFUL operation
● Press (POWERFUL) button during operation.
“ ” is displayed on the LCD.
POWERFUL operation ends in 20 minutes. Then the system
automatically operates with the previous settings used before
POWERFUL operation.
● Press the (START/STOP) button. Or
● Press (POWERFUL) button again.
POWERFUL operation stops.
“ ” disappears from the LCD.
1
NOTE
●When SLEEP mode, ECO mode, SILENT mode or LEAVE HOME mode is selected, POWERFUL
operation is cancelled.
●During POWERFUL operation, capacity of the air conditioner will not increase
– if the air conditioner is already running at maximum capacity.
– just before defrost operation (when the air conditioner is running in HEATING operation).
●After auto restart, POWERFUL operation is cancelled and previous operation shall start.
●For multi model connections, POWERFUL operation may not function depending on operation conditions.
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– 12 –
SILENT OPERATION
●By pressing (SILENT) button during AUTO, HEATING, DEHUMIDIFYING, COOLING or FAN operation,
the fan speed will change to ultra slow.
■To start SILENT operation
■To cancel SILENT operation
● Press (SILENT) button during operation.
“ ” is displayed on the LCD. Fan speed will be ultra slow.
●Press (START/STOP) button. Or
●Press (SILENT) button again or (FAN SPEED)
button.
Fan speed will return to previous fan speed before SILENT
operation starts.
SILENT operation stops.
“ ” disappears from the LCD.
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NOTE
●When POWERFUL operation is selected, SILENT operation is cancelled. Fan speed will return to previous
fan speed before SILENT operation.
●After auto restart, SILENT operation is cancelled. Fan speed will return to previous fan speed before
SILENT operation.
●During any operation with fan speed (SILENT), if press (SILENT) button, fan speed will
not change.
1
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– 13 –
ECO OPERATION
ECO operation is an energy saving function by changing set temperature automatically and by limiting the
maximum power consumption value.
●By pressing the (ECO) button during AUTO, HEATING,
DEHUMIDIFYING or COOLING operation, the air conditioner
performs the "ECO" operation.
1
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6:,1*
■To start ECO operation
■ To cancel ECO operation
● Press (ECO) button during operation.
“ ” is displayed on the LCD.
Energy saving operation will start by changing the set temperature
higher or lower automatically and reducing operation power
consumption. This function may vary based on the connected
outdoor unit.
● Press (START/STOP) button. Or
● Press (ECO) button again.
“ ” disappears from the LCD.
NOTE
●ECO function will not be effective when power consumption is low.
●By pressing (POWERFUL) button, ECO operation is cancelled.
●After auto restart, ECO operation is cancelled and previous operation mode shall start.
●For multi model connections, energy saving operation shall start only by changing set temperature higher
or lower automatically. However, effectiveness of ECO depends on operation conditions.
5&0$18$/5$5(%RRNLQGE 

– 14 –
LEAVE HOME(LH) OPERATION
Prevent the room temperature from falling too much by setting temperature 10°C automatically when no one is at home.
This operation is able to operate by "Continuous operation" or "Day timer operation". Please use "Day timer operation" to set
the number of days up to 99 days.
■To start LEAVE HOME operation
Option 1. Continuous operation.
● Press (LEAVE HOME) button during stop or operation.
Room temperature is set at 10°C and heating operation starts.
“ ”, “ ”, “ ”, “ ” is displayed on the LCD.
Option 2. Day timer operation.
● Press (LEAVE HOME) button during stop or operation.
Room temperature is set at 10°C and heating operation starts.
“ ”, “ ”, “ ”, “ ” is displayed on the LCD.
●Set number of operation days (1 to 99 days), if needed.
Press (TIME) button to select number of days.
Number of days blink.
* Press “
(UP)” to set number of days from 1 day, 2 days, 3
days ..... 98 days, 99 days, 1 day and so on.
* Press “
(DOWN)” to set number of days from 99 days, 98
days, 97 days .... 3 days, 2 days, 1 day, 99 days and so on.
* Number of day is counted when clock indicates 0:00.
● Press (SEND) button to confirm number of operation
days. Display for number of operation days will stop blinking.
● Press (CANCEL) button to reset number of operation
days or to have continuous operation.
1
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To cancel LEAVE HOME operation
●Press (START/STOP) button. Or
●Press (LEAVE HOME) button again.
Return to previous operation mode. Or
●Change to other operation mode by pressing (MODE) button.
NOTE
●After reaching the set number of operation days for Leave Home or by pressing the (Leave Home) button again,
the unit will operate in previous mode.
●During Leave Home operation, fan speed and horizontal air deflector position cannot be changed.
●By pressing (Leave Home) button, implementation of Weekly Timer or Once Timer is cancelled.
●In case of power supply shut down, after autorestart, all setting for number of days operation will be reset and unit
shall be in continuous operation.
●For multi connections, when each room is running in different operation modes such as FAN only, COOLING,
DEHUMIDIFYING or AUTO mode, Leave Home operation cannot operate even though it is possible to set Leave
Home operation.
In order to start Leave Home operation, all rooms must stop its operation. Then, press (LEAVE HOME) button to
operate Leave Home operation.
●For multi connections, when all rooms are running HEATING operation, it is possible to operate Leave Home operation
by pressing the (LEAVE HOME) button.
●For multi connections, if two or more rooms are set to operate Leave Home operation, the capability to reach the
set temperature at 10°C may not possible. In addition, this also depends on outdoor temperature.
●POWERFUL, SILENT and ECO operations are not applicable during Leave Home operation.
Continuous operation
Day timer operation
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– 15 –
CLEAN (ONE TOUCH CLEAN) OPERATION
Drying indoor heat exchanger after cooling operation to prevent mildew.
■To start CLEAN operation
■To cancel CLEAN operation
● Press (CLEAN) button when unit is OFF.
Total time taken for One Touch Clean operation is 60 minutes.
During this operation, HEATING or FAN operation shall
operate.
During one touch clean, operation lamp is blinking.
“”, “ ” is displayed on the LCD.
● Press (START/STOP) button. Or
● Press (CLEAN) button again.
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NOTE
● When CLEAN operation finish, unit will switch OFF automatically.
●If Weekly Timer or Once Timer is set, there is a need to cancel those timer before operating CLEAN
function.
● For multi connections, when pressing (CLEAN) button, operation is limited to FAN operation.
● For multi connections, when one room operates CLEAN operation first, other rooms can operate COOLING,
DEHUMIDIFYING or FAN operation. However, when other rooms need to operate HEATING operation,
air conditioner will be in STANDBY mode. After CLEAN operation finish, HEATING operation will start.
1
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– 16 –
ONCE TIMER (ON/OFF TIMER) OPERATION
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6:,1*
The device can be set to turn off at a preset time.
1. Press (OFF-TIMER) button. and blink on the display.
2. Set the "turn-off time" with (TIME) button.
3. After setting, direct the remote controller towards the indoor and press
(SEND) button.
and "set time" lights up instead of blinking.
A beep sound emitted from indoor unit and the (TIMER) lamp on the
indoor unit lights up.
ON TIMER
The device will turn on at a designated time.
1. Press (ON-TIMER) button. and blink on the display.
2. Set the "turn-on time" with (TIME) button.
3. After setting, direct the remote controller towards the indoor and press
(SEND) button.
and "set time" light up instead of blinking.
A beep sound emitted from indoor unit and the (TIMER) lamp on the indoor
unit lights up.
ON/OFF TIMER
●The device will turn on (off) and off (on) at the designated time.
●The switching occurs first at the preset time that comes earlier.
●The arrow mark appears on the display to indicate the sequence of switching
operations.
1. Press (OFF-TIMER) button so that and blink on the dis-
play.
2. Set the "turn-off" time with (TIME) button. After setting, direct the remote
controller towards the indoor and press (SEND) button.
3. Press (ON-TIMER) button so that and set "turn-off" time light up.
The and blink.
4. Set the "turn-on" time with (TIME) button.
5. After setting, direct the remote controller towards the indoor and press
(SEND) button
and set "turn-on" time light up instead of blinking.
A beep sound emitted from indoor unit and the (TIMER) lamp on the indoor
unit lights up.
■ The timer may be used in three ways: OFF-timer, ON-timer and ON/OFF (OFF/
ON)-timer. Set the current time first because it serves as a reference.
■To cancel Reservation
●Point the signal window of the remote controller towards the indoor unit and press (CANCEL) button.
and "ON or OFF set time" goes out with a beep and the (TIMER) lamp on the indoor unit turns off.
NOTE
●User can set only one of the OFF-timer, ON-timer or ON/OFF-timer.
●If WEEKLY TIMER already set, by setting the ONCE TIMER, ONCE TIMER operation is prioritized. When ONCE
TIMER operation is complete, WEEKLY TIMER operation will be activated.
OFF TIMER
1
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– 17 –
ECO SLEEP TIMER OPERATION
The timer can be set up to a duration of 7 hours.
By pressing (SLEEP) button during AUTO, HEATING, DEHUMIDIFYING, COOLING or FAN operation,
the unit shifts the room temperature and reduces the fan speed. It results in energy saving.
Set the current time first before operating the ECO SLEEP TIMER operation.
■To start ECO SLEEP TIMER operation
■To cancel ECO SLEEP TIMER operation
Press (SLEEP) button during operation.
● “ ”, “ ”, “ ”, “OFF”, off time, “ ” and number
of hour are displayed on the remote controller display.
● During ECO SLEEP TIMER operation, fan speed will be ultra
slow.
● A beep sound emitted from indoor unit and the (TIMER) lamp
on the indoor unit lights up.
Pressing (SLEEP) button repeatedly, the number of hours
will change as below:
● During ECO SLEEP TIMER operation, air conditioner will
continue to operate for the designated number of hours and
then turn off.
● When the ECO SLEEP TIMER has been set, the display on
the remote controller indicates the turn off time.
Press (START/STOP) button.
●Room air conditioner will switch off.
Press (SLEEP) button again until “ ”, “ ”, “ ”,
off time, “ ” and number of hour disappear from the remote
controller display.
Press (CANCEL) button.
●A beep sound emitted from indoor unit and the (TIMER) lamp
on the indoor unit turns off.
●SLEEP TIMER operation is cancelled.
1
Example: If ECO SLEEP TIMER is
set for 1 hour at 18:00, the switch
off time will be at 19:00.
1 H 2 H 3 H 7 H
SLEEP TIMER off
6:,1*
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– 18 –
ECO SLEEP TIMER OPERATION
■To set ECO SLEEP TIMER and ON TIMER
■To cancel ECO SLEEP TIMER and ON TIMER operation
The air conditioner will be turned off by ECO SLEEP TIMER and turned on by ON TIMER.
1. Set the ON TIMER.
2. Press (SLEEP) button and set ECO SLEEP TIMER.
Direct the remote controller towards the indoor unit and press (CANCEL) button.
● “”, “ ”, “ ”, “OFF”, off time, “ ”, number of hour, "ON" and ON TIMER set time disappear
from the remote controller display.
● A beep sound emitted from indoor unit and the (TIMER) lamp on the indoor unit turns off.
● ECO SLEEP TIMER and ON TIMER reservations are cancelled.
30 minutes after setting ECO SLEEP TIMER, outdoor fan speed will be reduced to lower the noise level and
to have comfort operation.
1 hour after setting ECO SLEEP TIMER, set temperature will be slightly shifted. Amount of temperature shifted
depends on type of air conditioner.
These automatic operation changes contribute to energy saving without losing comfort.
The level of energy consumption depends on outside temperature, room temperature, set temperature or air
conditioner type.
Cooling operation [diagram representation
for illustrative purpose only]
Example:
In this case, air conditioner will turn off in 2 hours (at 1:38) and it will be
turned on at 6:00 the next morning.
NOTE
●If ECO SLEEP TIMER is set when OFF TIMER or ON/OFF TIMER has been set earlier, the ECO
SLEEP TIMER becomes effective instead of the OFF TIMER or ON/OFF TIMER.
Heating operation [diagram representation for
illustrative purpose only]
Temperature
30 minutes
Outdoor fan
speed reduce
Shift
temperature
1 hour
Temperature
30 minutes
Outdoor fan
speed reduce Shift
temperature
1 hour
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