Mitsubishi SKM15ZSP-W User manual

RLC012A107D
SRK25ZSP-W
SRK35ZSP-W
SRK45ZSP-W
SKM15ZSP-W
SKM20ZSP-W
SKM25ZSP-W
SKM35ZSP-W
ORIGINAL INSTRUCTIONS
MANUEL DE L’UTILISATEUR
CLIMATISEUR
USER’S MANUAL
AIR-CONDITIONER
ANWENDERHANDBUCH
KLIMAGERA
¨T
ISTRUZIONI PER L’USO
CONDIZIONATORE D’ARIA
MANUAL DEL PROPIETARIO
ACONDICIONADOR DE AIRE
GEBRUIKERSHANDLEIDING
AIRCONDITIONING
MANUAL DO UTILIZADOR
APARELHO DE AR CONDICIONADO
ɊɍɄɈȼɈȾɋɌȼɈ ɉɈ ɗɄɋɉɅɍȺɌȺɐɂɂ
ɄɈɇȾɂɐɂɈɇȿɊ ȼɈɁȾɍɏȺ
ENGLISH
DEUTSCH
ITALIANO
ESPAN
˜OL
NEDERLANDS
PORTUGUÊS
ɊɍɋɋɄɂɃ
FRANÇAIS
ΕΛΛΗΝΙΚΑ
KULLANIM KILAVUZU
ΟΔΗΓΙΕΣ ΧΡΗΣΗΣ
ΚΛΙΜΑΤΙΣΤΙΚΟ
TÜRKÇE
USER’S MANUAL
AIR-CONDITIONER
202202
RLC012A107D_Cover.indd 1 26-Jan-22 14:39:01

RLC012A107D_Cover.indd 2 26-Jan-22 14:39:01

EN-1
Thank you for purchasing a MITSUBISHI HEAVY INDUSTRIES THERMAL SYSTEMS, LTD.
Air-Conditioner. To get the best long-lasting performance, please read and follow this user’s manual
carefully before using your air-conditioner. After reading, please store the manual in a safe place
and refer to it for operational questions or in the event of any irregularities.
ENGLISH
Safety precautions..........................................2
Tips for effective operation .............................6
Name of each part and its function.................7
Remote control...............................................9
Operation failure with the remote control........9
Temporary run operation ................................9
Operation and display section for
remote control...............................................10
Current time setting......................................10
AUTO mode operation..................................11
FAN SPEED .................................................11
COOL/HEAT/DRY/FAN mode operation ......12
Air-conditioner operation temperature
range ............................................................12
Characteristics of HEAT mode operation .....12
AirÀow direction adjustment..........................13
SLEEP TIMER operation..............................14
OFF TIMER operation..................................14
ON TIMER operation....................................15
SLEEP TIMER + ON TIMER operation........15
PROGRAM TIMER operation.......................16
HIGH POWER/ECONOMY operation ..........17
SELF CLEAN operation................................18
Auto restart function .....................................18
Maintenance.................................................19
Proper installation.........................................21
Troubleshooting ...........................................21
Contact your dealer......................................21
Notice ...........................................................22
Self diagnosis function..................................23
About the multiple air-conditioners...............24
contents
Your air-conditioner is marked with this symbol. It means that waste electrical and
electronic equipment (WEEE as in directive 2012/19/EU) should not be mixed with
general household waste. Air-conditioner should be treated at an authorized treat-
ment facility for re-use, recycling and recovery and not be disposed of in the munici-
pal waste stream. Please contact the installer or local authority for more information.
This symbol printed on the batteries attached to your air-conditioner is information
for end-users according to the EU directive 2006/66/EC article 20 annex II.
Batteries, at their end-of-life, should be disposed of separately from general house-
hold waste. If a chemical symbol is printed beneath the symbol
shown above, this chemical symbol means that the batteries contain a
heavy metal at a certain concentration. This will be indicated as follows:
Hg:mercury(0.0005 %), Cd:cadmium(0.002 %), Pb:lead(0.004 %)
Please, dispose of batteries correctly at your local community waste
collection or the recycling center.
The emission sound pressure level from each Indoor and Outdoor unit is under 70 dB(A).
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EN-2
Safety precautions
x Before starting to use the system, please read these “Safety precautions” carefully to ensure
proper operation of the system.
x When you have read this user’s manual, please keep it safely. If someone else takes over as
user, make sure that the manual is also passed on to the new user.
WARNING
Indicates a potentially hazardous situation which, if not avoided, can
result in serious consequences such as death or severe injury.
CAUTION
Indicates a potentially hazardous situation which, if not avoided, can
result in personal injury or property damage.
Please observe these precautions with great care, since they are essential to your safety.
x This unit is designed for 2 types refrigerants (R32 or R410A). See a label on the outdoor unit to
check refrigerant information.
x Symbols which appear frequently in the text have the following meaning:
Strictly prohibited Observe instructions
with great care Provide proper earthing
The user’s manual should be read
carefully. A service personnel should be
handing this equipment with
reference to the installation
manual.
There is information included
in the user’s manual and/or
installation manual.
❚Following precaution is only for R32.
This equipment uses Àammable refrigerants. If the refrigerant is leaked,
together with an external ignition source, there is a possibility of ignition.
WARNING
x Strict compliance of the domestic laws must
be observed when disposing the appliance.
x Do not use means to accelerate the
defrosting process or to clean, other than
those recommended by the manufacturer.
x The appliance shall be stored in a room
without continuously operating ignition
sources (for example: open Àames, an
operating gas appliance or an operating
electric heater).
x Do not pierce or burn.
x Be aware that refrigerants may not contain an
odour.
x The appliance shall be stored in a well-
ventilated area where the room size
corresponds to the room area as speci¿ed for
operation.
x The staff in servicing operations must hold
the national quali¿cation or other relevant
quali¿cations.
x The indoor unit shall be stored in a room that
has a minimum area of 4.0 m
2
.*
*
This value is for split system.
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EN-3
❚Safety precautions
❚INSTALLATION PRECAUTIONS
WARNING
x The system is for domestic and residential use.
If used in severe environments, such as an engineering workplace, the equipment may
function poorly.
x The system must be installed by your dealer or a qualified installer.
It is not advisable to install the system by yourself, as faulty handling may cause
leakage of water, electric shock or fire.
CAUTION
x Do not install it where flammable gas may leak.
Gas leaks may cause fire.
x Make sure that an earth leakage
breaker is installed.
If you do not install an earth leakage
breaker, you may get an electric shock.
x Make sure to install the drain hose
properly so that all the water is drained
out.
Improper installation may lead to water
drop in the room resulting in wet furniture.
x Make sure that the system has been properly earthed.
Earth wire should never be connected to a gas pipe, water pipe, lightning conductor
or telephone earth wire. Improper installation of the earth wire may cause an electric
shock.
This Product contains fluorinated greenhouse gases.
Do not vent R32 into the atmosphere: R32 is a fluorinated greenhouse gas with a Global Warming
Potential (GWP) = 675.
Do not vent R410A into the atmosphere: R410A is a fluorinated greenhouse gas with a Global
Warming Potential (GWP) = 2088.
Refer to a label on outdoor unit for the weight of fluorinated greenhouse gas and CO2equivalent.
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EN-4
❚Safety precautions
❚OPERATION PRECAUTIONSWARNING
x Children shall not play with the
air-conditioner.
x Do not expose yourself to the cooling
air for a long period.
This could affect your physical condition
and cause health problems.
x Cleaning and user maintenance shall
not be made by children without
supervision.
x Do not insert anything into the air
outlet.
This may cause injury, as the internal fan
rotates at high speed.
x This air-conditioner can be used by children aged from 8 years and above
and people with reduced physical, sensory or mental capabilities or lack of
experience and knowledge, if they have been given supervision or instruction
concerning use of the air-conditioner in a safe way and understand the hazards
involved.
x Store the remote control out of reach of children.
Failure to observe this may result in the batteries being swallowed or other accidents.
CAUTION
x Only use approved fuses.
Use of steel or copper wire instead of an
approved fuse is strictly prohibited, as it
may cause a breakdown or fire.
x Do not handle the switches with wet
hands.
This may cause an electric shock.
x Do not swing from the indoor unit.
If the indoor unit falls down,you may get
injured.
x Do not place a flammable insecticide
or paint spray near the air-conditioner,
nor spray it directly on the system.
This may result in a fire.
x Do not expose any combustion
appliance directly to the air stream of
the air-conditioner.
The combustion appliance may
malfunction.
x Do not wash the air-conditioner with
water.
This could cause an electric shock.
Using a high pressure washer may cause
damage to the aluminum fins, resulting in
performance decrement.
x Do not use for preservation of food,
plants or animals, precision devices or
works of art.
The system is only intended for use in
ordinary domestic rooms. Any other use
of the system may damage the quality of
food, etc.
x Do not place anything containing
water, like vases, on top of the unit.
Water entering the unit could damage the
insulation and therefore cause an electric
shock.
x Do not install the air-conditioner where
the airflow direction is aimed directly at
plants or animals.
This will damage their health.
x Do not step/sit on the unit nor put
anything on it.
If the unit falls down or things drop from it,
people could get hurt.
x After a long period of use, check the
unit’s support structure regularly.
If you do not repair any damage right
away, the unit may fall down and cause
personal injury.
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EN-5
❚Safety precautions
CAUTION
x Do not touch the aluminum fins on the
heat exchanger.
It may result in injury.
x Do not place household electrical
appliances or household items under-
neath the indoor or outdoor units.
Condensation falling from the unit may
stain objects and cause accidents or
electrical shock.
x Do not operate the system without the
air filter.
It can cause malfunction of the system
due to clogging of the heat exchanger.
x Do not shut off the power source
immediately after stopping the
operation.
Wait at least 5 minutes, otherwise there is
a risk of water leakage or breakdown.
x Do not control the system with main
power switch.
It can cause fire or water leakage. In
addition, the fan can start unexpectedly,
which can cause personal injury.
x Do not pour liquid into the unit and do
not put water container on the unit.
Water entering the unit could damage the
insulation and therefore cause an electric
shock.
x If you operate air-conditioner together
with a combustion appliance, you must
regularly ventilate the indoor air.
Insufficient ventilation may cause
accidents due to oxygen deficiency.
x Stand firmly on a stepladder or other
stable object when removing the inlet
panel and filters.
Failure to observe this may result in injury
through insecure objects toppling over.
x When you clean air-conditioner, stop
the unit and turn off the power source.
Never open the panel while the internal
fan is rotating.
x Do not place objects near the outdoor
unit or allow leaves to gather around
the unit.
If there are objects or leaves around the
outdoor unit, small animals may enter
unit and contact electrical parts and may
cause a break-down, smoke or fire.
x Contact your dealer to clean inside the
indoor unit, do not attempt to do by
yourself.
The use of a non-approved detergent or
improper washing method may damage
the unit’s plastic components and cause
leaks. Damage, smoke, or fire may also
happen if the detergent comes in contact
with electrical parts or the unit’s motor.
x Stop the unit and turn off the power if
you hear thunder or there is a danger
of lightning.
It may damage the unit.
x If the power cable becomes damaged,
contact your dealer or a qualified
installer.
If it is not replaced, it may cause a
breakdown or fire.
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EN-6
❚Safety precautions
❚PRECAUTIONS FOR RELOCATION OR REPAIRS
WARNING
x Do not perform any repairs or modifications by yourself. Consult the dealer if the
unit requires repair.
If you repair or modify the unit, it can cause water leaks, electric shocks or fire.
x Consult your dealer for repairs.
Wrong repairs could cause an electric
shock, fire, etc.
x In case the air-conditioner is relocated
elsewhere, contact your dealer or a
qualified installer.
Faulty installation may cause water
leakage, electric shock, fire, etc.
x If you notice anything abnormal (smell
of burning, etc.), stop the system, turn
off the power source and consult your
dealer.
Continued use of the system in
abnormal circumstances can result in
malfunctioning, electric shock, fire, etc.
x If the air-conditioner fails to cool
or warm the room, it may have a
refrigerant leakage. Contact your
dealer.
If refrigerant needs to be added,
check with your dealer for proper
instructions.
If the refrigerant comes in contact with the
bare skin, it may cause cold injury.
If the refrigerant gas is inhaled
excessively, it may cause deterioration
of nerve function like dizziness and
headache, or deterioration of heart
function like irregular heartbeat and heart
palpitation temporarily. If refrigerant
unexpectedly leaks from the unit onto
a fan heater, stove, hotplate or other
heat source, harmful gases could be
generated.
Tips for effective operation
■Please observe the following for the most economic and comfortable use of your unit.
xSet a suitable room temperature.
Excessively high or low temperatures are not good for your health and waste of electricity.
xClean the filters frequently.
Clogged filters may block the airflow and cause less efficient operation. Page 19
xAvoid direct sunlight and draught.
Cut out direct sunlight by drawing the curtains or blinds when cooling. Keep windows and doors shut, except when ventilating.
xAdjust the airflow direction properly.
Adjust the up/down and left/right airflow to ensure a steady room temperature.
xOperate the unit only when needed.
Use the timer properly to operate the unit only when needed.
xKeep heat source away when cooling.
Keep heat sources out of the room as much as possible.
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EN-7
Name of each part and its function
Air inlet panel Air inlet
Air filters
Air outlet
Air outlet
Room temperature
sensor
Heat exchanger
(Aluminum fin)
xInside of the unit
Heat exchanger
(Aluminum fin)
Fan
xInside of
the unit
Louvers
(Vertical blades)
xLeft / right airflow
direction adjustment
Flaps
(Horizontal blades)
xUp / down airflow
direction adjustment
Page 19
Page 19
OUTDOOR UNIT
INDOOR UNIT
Air inlet
(back and side)
Fan
xInside of the unit
Refrigerant pipe
and electric wire
Drain hose
Drain hole
* The appearance varies by models
IT MIGHT CAUSE INJURY.
DO NOT STEP ON TOP OF THIS UNIT.
WARNING
DO NOT INSERT ANYTHING
INTO THE AIR OUTLET.
IT MIGHT CAUSE INJURY.
DO NOT TOUCH THE
ALUMINUM FINS.
IT MIGHT CAUSE INJURY.
SHARP EDGE OF FINSMOVING FAN BLADES
CAUTION
Don't touch
the terminal
Don't touch
refrigerant
pipings and
connections.
block.
Model name
Unit display
section
Page 8
This equipment
uses flammable
refrigerant.
Page 2 (only R32 models)
This equipment
uses flammable
refrigerant.
Page 2
Model name and refrigerant type
Do not wash the inside of the air
conditioner.Water leakage and
permanent damage may result.
Electrical hazard exists.
Caution,high voltage,shut off power
before servicing fan and fan motor.
WARNING
By the following operation,forced
Reconnect power supply. Hold the
ON/OFF switch down for 5 seconds
cooling operation is possible.
until hear a beep.
Isolate the power supply.
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EN-8
Unit display section
Name of each part and its function
xBuzzer sound for remote control
Buzzer sound (PipPip) is produced when
preset temperature is set to 24 °C or,
AUTO operation mode is selected or,
automatic airflow is selected (except FAN mode operation).
Buzzer sound (Pip) is produced when
air-conditioner is turned off by pressing ON/OFF button (except SELF CLEAN operation).
NOTE
Preset temperatureAirflow setting
Remote control Remote control
holder
Battery × 2
(R03 (AAA, Micro))
Wood screw × 2
(for remote control holder mounting)
This button can be used for turning on/off
the unit when a remote control is not available.
Page 9
Unit ON/OFF button
Accessories
RUN light (green)
xIlluminates during operation.
xBlinks slowly when SELF CLEAN operation
(3 seconds ON, 1 second OFF).
xBlinks when airflow is stopped to
prevent blowing out of cold air in
heating operation. (1.5 seconds ON,
0.5 seconds OFF)
Page 18
Page 22
TIMER light (yellow)
Illuminates during TIMER operation.
Page 14-16
Pip Pip Pip Pip Pip Pip Pip Pip Pip Pip Pip
Remote control signal receiver
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EN-9
Remote control
Setting the batteries
The following cases show exhausted batteries. Replace old batteries with new ones.
xReceiving beep is not emitted when a signal is transmitted.
xDisplay fades away.
NOTE
xDo not use old and new batteries together.
xRemove the batteries when the remote control is not used for a long period.
xThe recommended effective period of a battery conforming to JIS or IEC
should be 6 to 12 months with normal use. If used longer, or when an
unspecified battery is used, liquid may leak from the battery, causing the
remote control to malfunction.
xThe recommendable effective period is printed on the battery. This may be
shorter due to manufacturing time to the unit. However, the battery may still
be in working order after expiry of its nominal life.
Pull out the cover.
Insert new batteries.
R03 (AAA, Micro) x 2
Close the cover.
■When the display shows any abnormal condition, press the ACL switch with the
tip of a ballpoint pen.
1
2
3
4
The remote control can be attached to a wall or pillar
by using the remote control holder. Before installing the
remote control, check that the air-conditioner receives
the signals properly.
For installing or removing the remote control, move it up
or down in the holder.
Using the remote control holder
Warning note for remote control
xAre the batteries running down?
“Setting the batteries” above.
Replace the batteries with new ones and retry the
operation.
Operation failure with the remote control
xIf the operation fails, operate the unit with temporary run opera-
tion function.
“Temporary run operation” below.
Strictly prohibited
xDo not drop the remote control.
Handle with care.
x Do not take remote control near
high temperature places, such as an
electric heating carpet or a stove.
xDo not place heavy objects on the
remote control, or step on it.
xDo not put any obstructing
obstacles between the remote
control and the unit.
xDo not spill any liquid on the
remote control.
xDo not leave the remote control
exposed to direct sunlight or other
strong lighting.
Temporary run operation
xThe unit ON/OFF button on the unit operates ON/OFF temporarily when the remote control is not used.
Operation program
• OPERATION MODE : AUTO
• FAN SPEED : AUTO
• AIR FLOW : AUTO
xOperation starts by pressing the unit ON/OFF button; it stops if you press
the button again.
xDo not keep pressing the unit ON/OFF button down for 5 seconds or more.
(Pressing it 5 seconds or more sets the forced cooling operation used during servicing or when relocating the air-conditioner.)
NOTE
Press the ACL switch with
the tip of a ballpoint pen.
xSet the current time.
Page 10 Current time setting
Step 2
Contact your dealer to have the remote
control checked.
Pay attention
to the and
marks
Unit ON/OFF button
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EN-10
Operation and display section for remote control
OPERATION MODE select button
Each time the button is pressed, the
mode changes.
xThe above illustration shows all controls, but in
practice only the relevant parts are shown.
ON/OFF (luminous) button
Press to start operation, press again to
stop.
TEMPERATURE button
These buttons set the room temperature.
(These buttons are used for setting the
current time and timer function as well.)
CANCEL button
This button cancels the ON timer, OFF
timer, and SLEEP operation.
Page 11,12
HI POWER/ECONO button
This button changes the HIGH POWER/
ECONOMY mode.
Page 17
ON TIMER button
This button selects ON TIMER operation.
Page 15
OFF TIMER button
This button selects OFF TIMER
operation. Page 14
SLEEP button
This button selects SLEEP operation.
Page 14
CLEAN switch
This switch selects the SELF CLEAN
mode. Page 18
FAN SPEED button
Each time the button is pressed, the fan
speed changes.
Page 11
AIR FLOW (UP/DOWN) button
This button changes the airflow (up/
down) direction. Page 13
ACL switch
This switch resets the program to default
state. Page 9
NOTE
2
Current time setting
■When inserting the batteries, the current time is automatically set to time setting mode.
13:00 is displayed as the current time. Set the clock to the right time.
Example: Set to 10:30.
Press the ACL switch.
Press with the tip of a ballpoint pen, etc.
The time display blinks and can be set to the current time.
Press the or button.
(Set to 10:30)
Press the ON/OFF button.
The display changes from blinking to steady lighting and the setting is complete.
Make sure to press the button within 60 seconds from the last operation in
step 2, otherwise the time is not set.
x The timer operation works based on the time clock, so please set it correctly.
xThe remote control data is reset when the present time is set.
1
3
Transmission procedure
When each button on the remote control is
pressed – with the remote control pointing
towards the air-conditioner unit, a signal is
transmitted.
When the air-conditioner receives the signal
correctly, it will beep.
The current time and present
OPERATING MODE are displayed
while the air-conditioner is turned off.
Display in OFF status
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EN-11
AUTO mode operation
■Automatically selects the operation mode (COOL, HEAT, DRY) depending on the room temperature when switched on.
xIf you do not want the AUTO mode program,
change to COOL, HEAT or FAN instead of
AUTO.
Page 12
xAirflow direction adjustment procedure.
Page 13
To stop: Press the ON/OFF button.
Press the MODE button.
The mode changes whenever the button is pressed.
Set to .
Press the ON/OFF button.
Press the or button.
Default preset temperature during AUTO mode is 24 °C for both cooling and
heating mode. However, it can be adjusted (Minimum 18 °C, Maximum 30 °C)
using button or button.
1
3
2
FAN SPEED
■The FAN SPEED can be set except for DRY mode.
Press the FAN SPEED button.
Each time the button is pressed, the fan speed changes.
1
xWhen FAN SPEED is changed from HI to LO, the sound of refrigerant
may be heard.
xWhen COOL mode is used if outside temperatures are low, the FAN
SPEED may change automatically to protect the air-conditioner.
NOTE
Operation capacity by your choice FAN SPEED
Set automatically by microcomputer AUTO
Powerful operation with high capacity HI
Standard operation MED
Energy-saving operation LO
■ Each time the button is pressed, the switch over occurs in the following order
–6 o–5 o............ –1 o±0 o+1 ............ +6.
When +6 is indicated, even if the button is pressed, the indicator does not change.
■ Each time the button is pressed, the switch over occurs in the following order
+6 o+5 o............ +1 o±0 o–1 ............ –6.
When –6 is indicated, even if the button is pressed, the indicator does not change.
When it is a little cold
Press the button.
When it is a little hot
Press the button.
Remote Control display
-6 -5 -4 -3 -2 -1 +0 +1 +2 +3 +4 +5 +6
18 19 20 21 22 23 24 25 26 27 28 29 30
Setting
temp.(
°C )
xIn case air is not blowing out during the
operation.
Page 22
NOTE
AUTO HI MED LO
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EN-12
COOL/HEAT/DRY/FAN mode operation
Airflow direction adjustment procedure. Page 13
4
3
To stop: Press the ON/OFF button.
xIn case air is not blown out, when starting the heating
operation.
xThe operation mode can also be set or changed when the
air-conditioner is not in operation.
NOTE
2
1
Air-conditioner operation temperature range
■Use within the following operational range. Operating outside of this range may result in the protection devices being activated and
preventing the unit from working.
Characteristics of HEAT mode operation
Mechanism and capacity of HEAT mode operation
xThe unit draws heat from the cold outside air, transfers it to indoors and heats the room. As a characteristic of heat pump system, the
heating capacity reduces when the outside air temperature gets colder.
xIt may take some time to supply hot air after turning on the air-conditioner.
xIf the outside temperature becomes extremely low, it would be better to use an additional source of heating.
Defrosting
If the outside temperature becomes low and humidity is high, the heat exchanger in the outdoor unit may frost over, which prevents efficient heating.
If this happens, the automatic defrost function is activated and the heating operation stops for 5 to 15 minutes during defrosting.
xBoth indoor and outdoor fans stop and the RUN light blinks slowly (1.5 seconds ON, 0.5 seconds OFF) during defrosting.
xThe outdoor unit may release some steam during defrosting. This is to help the defrosting process and is not a defect.
xThe HEAT operation resumes as soon as defrosting has been completed.
Press the FAN SPEED button
Set the fan speed as preferred.
A fan speed cannot be set under DRY operation.
Page 22
COOL HEAT DRY FAN
26 °C - 28 °C 22 °C - 24 °C 24 °C - 26 °C —
Press the MODE button.
Set to a required mode.
(COOL), (HEAT), (DRY), (FAN)
Press the ON/OFF button.
Press the TEMP button.
Press or button for the preferred temperature.
Recommendation
COOL mode operation HEAT mode operation
Outside temperature Approximately -15 to 46 °C Approximately -15 to 24 °C
Inside temperature Approximately 18 to 32 °C Approximately 10 to 30 °C
Inside humidity
Below approximately 80 %
The long-term use of the unit with a humidity level
exceeding 80 % may result in condensation forming
on the surface of the indoor unit, leading to water
drops.
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EN-13
Airflow direction adjustment
■ Up/down direction can be adjusted with the AIR FLOW button on the remote control. Every time you press this button, the mode
changes as follows:
Change on AIR FLOW (UP/DOWN) mode.
Memory flap (Flap stopped)
When you press the AIR FLOW button once while the flap is operating, it stops swinging at the position. Since this angle is
memorized in the microcomputer, the flap will automatically be set at this angle when the next operation is started.
WARNING
xDo not expose directly to airflow from the air-conditioner for a long time.
CAUTION
xWhen in COOL or DRY operation, do not operate for a long period with the
airflow blowing straight down. Otherwise, condensation may appear on the
outlet grill and drip down.
xDo not try to adjust the flaps by hand, as the control angle may change or
the flap may not be closed completely.
HEAT
(Horizontal
blowing)
(Slant forward
blowing)
COOL, DRY
xRecommended angle of the flap when
stopping
xWhen heating operation starts, the flap direction is fixed at the horizontal position in order to avoid cold draft. It returns to the set
position when the warm air supply is started.
xThe flap direction will be controlled to the horizontal position when the room temperature reaches the set temperature and compressor
stops or when defrosting is in operation.
xThe airflow direction cannot be set during the period mentioned above. Change the airflow direction settings after the warm air is
supplied and the flap goes to the set position.
NOTE FOR HEATING OPERATION
xThe actual position of the flap and louver may differ from the display shown.
NOTE
(Swing)
(Flap stopped)
Adjusting left/right air Àow direction
■Adjust the direction by moving the left/right louver by hand.
When you adjust the direction, touch the operation point of louver.
Operation point
Louver
Flap
CAUTION
xPlease stop the air-conditioner when adjusting the air Àow direction.
RLC012A107_EN.indd 13 12/30/2018 9:56:14 PM

EN-14
■If it is pressed while the unit is off
SLEEP TIMER operation starts with the previous operation settings, and the
air-conditioner is turned off after the set time lapses.
■If it is pressed while the unit is running
The air-conditioner is turned off after the set time lapses.
Every time the button is pressed, the display changes as follows:
... (Units of one hour)
No display
(canceled)
Example: You prefer it to stop after 3 hours.
Set to
The timer light (yellow) is on.
xThe unit stops after the set time lapses.
SLEEP TIMER operation
■The unit will stop automatically after the set time lapses.
The set temperature is automatically adjusted according to the lapse time in order to avoid too much cooling or heating. Page 16
Press the SLEEP button.
1
How to cancel
Press the CANCEL button to turn off the SLEEP
display.
Changing of set time
Set a new time by pressing SLEEP button.
xSLEEP TIMER cannot be set simultaneously with OFF TIMER.
NOTE
OFF TIMER operation
■The unit stops automatically when the set time comes.
When the air-conditioner is turned off, start the operation from Step 1. When the air-conditioner is running, start from Step 2.
Example: You prefer it to stop 22:30.
Press the ON/OFF button.
Press the OFF TIMER button.
OFF TIMER display is blinking.
Press the or button.
Every time the button is pressed, the display is switched in the order of:
0:00 0:10 0:20
...
1:00 1:10
(Units of ten minutes)
Every time the button is pressed, the display is switched in the order of:
0:00 23:50 23:40
...
23:00 22:50
(Units of ten minutes)
Set at 22:30.
3
1
4Press the OFF TIMER button.
The display changes from blinking to steady lighting and the setting is
complete.
The timer light (yellow) is on.
2
How to cancel
Press the CANCEL button to turn off the timer
display.
xThe unit stops at the end of the set period of time.
xMake sure to press the button within 60 seconds from the last operation
in step 3, otherwise the setting is not completed.
xThe current time is not displayed during OFF TIMER operation.
xDifferent from SLEEP TIMER operation, automatic set temperature
adjustment is not done during OFF TIMER operation.
Changing of set time
Set a new time by using the OFF TIMER button.
NOTE
RLC012A107_EN.indd 14 12/30/2018 9:56:14 PM

EN-15
1
2
How to cancel
Press the CANCEL button to turn off the timer
display.
Example: When the preferred room temperature is required at 8:00.
Press the ON TIMER button.
ON TIMER display is blinking.
3
Press the or button.
Every time the button is pressed, the display is switched in the order of:
0:00 0:10 0:20
...
1:00 1:10
(Units of ten minutes)
Every time the button is pressed, the display is switched in the order of:
0:00 23:50 23:40
...
23:00 22:50
(Units of ten minutes)
Set at 8:00.
Press the ON TIMER button.
The display changes from blinking to steady lighting and the setting is
complete.
The timer light (yellow) is on.
If ON TIMER setting is performed when air-conditioner is running,
air-conditioner operation will stop.
Changing of set time
Set a new time by using the ON TIMER button.
ON TIMER operation
■ Operation starts 5 to 60 minutes before the set time so that the room temperature reaches the optimum temperature at the set time. Page 16
ON TIMER operation can be set regardless of whether the air-conditioner is running or not.
xOperation starts 5 to 60 minutes before the set time.
xThe timer light (yellow) goes out at the set time.
xMake sure to press the button within 60 seconds from the last operation
in step 2, otherwise the setting is not completed.
xThe current time is not displayed during ON TIMER operation.
xIf the ON/OFF button is pressed after setting the ON TIMER, the setting
will be canceled.
NOTE
SLEEP TIMER + ON TIMER operation
■This is the combined timer operation of SLEEP TIMER and ON TIMER.
Example: When it is required to stop after 3 hours and then start operation at 8:00, near the
set temperature.
SLEEP TIMER setting
Set by the procedures on page 14.
Set to
ON TIMER operation setting
Set by the above procedure mentioned in ON TIMER.
Set to
The setting of the lighting of the timer light (yellow) of this unit is complete.
xAfter the SLEEP TIMER set time has lapsed, the operation stops, and it starts from
5 to 60 minutes before the ON TIMER’s set time.
xThe timer light is turned off when ON TIMER set time comes.
Changing of set time
Set a new time by using the SLEEP or ON TIMER
button.
How to cancel
Press the CANCEL button to turn off the timer display.
1
2
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EN-16
PROGRAM TIMER operation
■The timer operations of the combination of ON and OFF TIMER. Once this has been set the timer operations will be repeated at the same
time every day unless the ON/OFF button is pressed.
Comfort Start-up
In ON TIMER operation, the unit starts the operation a little earlier, so
that the room can approach optimum temperature at ON time. This is
called “Comfort start-up”.
xMechanism
The room temperature is
checked 60 minutes before
the ON time. Depending on
the temperature at that time,
the operation starts 5 to 60
minutes before the timer is at
ON.
xThe function is available
for both COOL and HEAT
operation mode (including
AUTO). It does not work for
DRY and FAN mode.
SLEEP TIMER
In COOL operation
(Stop) Operation starts
▼
Check the room
temp. 60 minutes
before.
Set time
▼
When SLEEP TIMER is selected, the set temperature is automatically
adjusted after a while, ensuring that the room is not too cold during
cooling or too warm during heating.
(Operation)
Set temperature
How to cancel
Press the CANCEL or ON/OFF button to turn off the timer display.
Changing of set time
Set a new time by using the OFF TIMER or ON TIMER button.
Example: Present time is 21:00. The air-conditioner running.
When it is preferred to stop at 22:30, and then start operation at 8:00, near the set
temperature.
First the air-conditioner starts running with ON TIMER.
After the air-conditioner stops running with OFF TIMER.
First the air-conditioner stops running with OFF TIMER.
After the air-conditioner starts running with ON TIMER.
OFF TIMER operation setting
Set by the procedures on page 14. Set to
ON TIMER operation setting
Set by the procedures on page 15. Set to
Timer light (yellow) on the unit will light when the setting is completed.
■The set time will be displayed on the remote control. The display will change
depending on the operational status.
1
2
xThe air-conditioner stopping.
xThe air-conditioner running.
COOL operation
▼
▼
HEAT operation
▼
▼
+1.0 °C
-1.0 °C
-1.0 °C
-2.0 °C
-3.0 °C
-6.0 °C
Set temperature
Set time Set time
Set temperature
1 hour 1 hour2 hour 2 hour
30 minutes
RLC012A107_EN.indd 16 12/30/2018 9:56:14 PM

EN-17
HIGH POWER/ECONOMY operation
■When the air-conditioner is turned off, start the operation from Step 1. When the air-conditioner is running, start from Step 2.
2
Press the ON/OFF button.
Press the HI POWER/ECONO button.
■When the operating mode is AUTO, COOL or HEAT
Every time the HI POWER/ECONO button is pressed, the display is
switched in the order of:
( HIGH POWER )( ECONOMY ) (Normal operation)
No display
■ When the operating mode is DRY or PROGRAM TIMER
Every time the HI POWER/ECONO button is pressed, the display is
switched in the order of:
No display
( ECONOMY ) (Normal operation)
1
Concerning ECONOMY operation
Pressing the HI POWER/ECONO button initiates a soft operation with the power suppressed in order to avoid an excessive cooling
or heating. The unit operates 1.5 °C higher than the setting temperature during cooling or 2.5 °C lower than that during heating. The
remote control displays and the FAN SPEED display is disappeared.
NOTE
xIt will go into ECONOMY operation at the next time the
air-conditioner runs in the following case.
1
When the air-conditioner is stopped by ON/OFF button
during ECONOMY operation.
2 W hen the air-conditioner is stopped in SLEEP or OFF
TIMER operation during ECONOMY operation.
3 W hen the operation is retrieved from SELF CLEAN
operation.
xWhen the following operations are set, ECONOMY operation
will be canceled.
1When the HI POWER/ECONO button is pressed
again.
2When the operation mode is changed from DRY to
FAN.
xNot operable while the air-conditioner is OFF.
Concerning HIGH POWER operation
Pressing the HI POWER/ECONO button intensi¿es the operating power and initiates powerful cooling or heating operation for 15
minutes continuously. The remote control displays and the FAN SPEED display is disappeared.
xDuring the HIGH POWER operation, the room temperature
is not controlled. When it causes an excessive cooling or
heating, press the HI POWER/ECONO button again to cancel
the HIGH POWER operation.
xHIGH POWER operation is not available during the DRY and
the program timer operations.
xWhen HIGH POWER operation is set after ON TIMER
operation,HIGH POWER operationwillstart fromtheset time.
xAfter HIGH POWER operation, the sound of refrigerant
flowing may be heard.
x
When the following operations are set, HIGH POWER operation
will be canceled.
1When the HI POWER/ECONO button is pressed again.
(The operation mode will be changed to the ECONOMY
operation)
2When the operation mode is changed.
3When it has been 15 min. since HIGH POWER operation
has started.
xNot operable while the air-conditioner is OFF.
NOTE
RLC012A107_EN.indd 17 12/30/2018 9:56:14 PM

EN-18
SELF CLEAN operation
1In order to active SELF CLEAN operation, press the
CLEAN switch with the tip of a ballpoint pen.
Every time the CLEAN switch is pressed, the display is
switched in the order of:
(SELF CLEAN on) (SELF CLEAN off)
No display
■ SELF CLEAN operation should be run after AUTO, COOL and DRY operation to remove the moisture from inside of the indoor unit and
control the growth of mold and bacteria.
NOTE
xTwo hours later, the air-conditioner stops SELF CLEAN operation
automatically. To stop the air-conditioner immediately, press the ON/OFF
button.
xSELF CLEAN operation is not operated after HEAT, FAN, OFF TIMER
and SLEEP operations have finished.
xThe indoor unit fan runs for about two hours in SELF CLEAN operation.
xThe RUN light illuminates during SELF CLEAN operation.
xPressing the SLEEP button during SELF CLEAN operation cancels the
SELF CLEAN operation and then the unit is set to SLEEP operation.
xThis is not a function for removing mold, germs or grime that have
already adhered to the unit.
3 seconds
1 second
ON
OFF
Auto restart function
■Auto restart function records the operational status of the air-conditioner immediately prior to be switched off by a power cut, and then
automatically resumes operations after the power has been restored.
■The following settings will be canceled:
1Timer settings
2HIGH POWER operations
xAuto restart function is set at on when the air-conditioner is shipped from the factory. Consult with your dealer if this function needs
to be switched off.
xWhen power failure occurs, the timer setting is canceled. Once power is resumed, set the timer again.
NOTE
RLC012A107_EN.indd 18 12/30/2018 9:56:14 PM