Mitsubishi Heavy Industries SRF50ZSX-W User manual

RFB012A009F
ORIGINAL INSTRUCTIONS
USER’S MANUAL
AIR-CONDITIONER
202004
SRF25ZS-W
SRF35ZS-W
SRF50ZSX-W
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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
YourAir-Conditioningproductmay bemarked 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-conditioners
should be treated at an authorized treatment facility for re-use, recycling
and recovery and not be disposed of in the municipal waste stream. Please
contact the installer or local authority for more information.
This symbol printed in the batteries attached to your Air-Conditioning
product 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
household 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).
Contents
Safety precautions..........................................2
Name of each part and its function.................7
Remote control handling.................................9
Operation failure with the remote control........9
Temporary run operation................................9
Installing two air-conditioners in the same room ...10
Child Lock.....................................................10
Operation and display section for remote control ....11
Current time setting .....................................12
AUTO mode operation..................................12
Temperature adjustment duringAUTO.........13
FAN SPEED .................................................13
COOL/HEAT/DRY/FAN mode operation ......14
Air-conditioner operable temperature setting ...14
Characteristics of HEAT mode operation .....14
AirÀow direction adjustment..........................15
SLEEP TIMER operation..............................16
OFF-TIMER operation..................................16
ON-TIMER operation....................................17
SLEEP TIMER + ON-TIMER operation........17
ON-TIMER + OFF-TIMER operation............18
WEEKLY TIMER operation...........................19
HIGH POWER/ECONOMY operation ..........23
NIGHT SETBACK operation.........................24
SILENT operation.........................................24
MENU function
SELF CLEAN operation.............................25
PRESET operation ....................................26
Auto restart function .....................................26
Tips for effective operation...........................26
Air outlet selection........................................27
Maintenance.................................................28
Proper installation.........................................30
Troubleshooting............................................30
Notice ...........................................................31
Contact your dealer......................................32
About the Multiple Air-conditioner.................32
Self diagnosis function..................................33
DRED (For Australia)....................................34
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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 4.0m2.*
*
This value is for split system. In the case of
multi system, see the installation sheet of
outdoor unit.
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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 PRECAUTIONS
ௗWARNING
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 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 Do not let the foreign matters enter
the indoor unit through the air outlets.
This may cause the dumper inoperable.
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.
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EN-7
INDOOR UNIT
Name of each part and its function
OUTDOOR UNIT
Air outlet
Air inlet
(On side & rear surface)
Outdoor unit fan
Heat exchanger
Upper air outlet
Air blows out of here.
Up/down airÀow direction adjustment Àap
Air lnlet panel
Draws the indoor air.
Unit operation switch
Up/down airÀow direction adjustment Àap
Lower air outlet
Air blows out of here.
Drain hose
Drains water from the indoor unit.
Refrigerant piping connection and electric wire
Left/right airÀow adjustment louver
Page 15
Left/right airÀow adjustment louver
Page 15
Page 15
•Air inlet panel removed.
Air ¿lter
Removes dust or dirt from the inlet air.
Page 28
Air-cleaning ¿lter
Page 29
Room temperature sensor
Heat exchanger
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EN-8
Unit display section
Name of each part and its function
Battery
(R03 (AAA, Micro) × 2)
Wood screw (Quantity:2)
(for remote control holder mounting)
Allergen clear filter
(Light orange)
Photocatalytic washable
deodorizing ¿lter (Orange)
Accessories
Wireless remote control Wireless remote
control holder
ON
OFF
Operation mode
invalid
Page 32
AIR SELECTION button
HI POWER Light (green)
AIR OUTLET SELECTION light (green)
This button can be used for turning on/off the unit when
remote control is not available. Page 9
Unit ON/OFF button
• Illuminates during operation.
• Blinks when airÀow stops due to the ‘HOT
KEEP’, ‘SELF CLEAN operation’and
‘operation mode invalid’.
Page 14
Page 25
RUN (HOT KEEP) light (green)
0.5 sec.
ON
OFF
1.5 sec.
HOT KEEP
Remote control signal receiver
TIMER light (yellow)
Illuminates during TIMER operation.
3 sec.
1 sec.
ON
OFF
SELF CLEAN
operation
0.5 sec.
ON
OFF
1.5 sec.
Illuminates during HIGH POWER operation.
Blinks during heating preparation.
Use this button to switch between the combination of
upper and lower air outlets and upper air outlet.
Illuminates during upper air outlet operation.
ECONO light (green)
Illuminates during ECONOMY operation.
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 temperature
Airflow setting
PipPip Pip Pip Pip Pip Pip Pip Pip Pip Pip Pip
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EN-9
Remote control handling
Replacing 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
unspeci¿ed 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 manufacturering time to the unit. However, the battery may
still be in working order after expiry of its nominal life.
Pull out the cover and take
out old batteries.
Insert new batteries.
R03 (AAA, Micro) x 2
Close the cover.
■When the display shows any abnormal condition, Press theACL switch with the
tip of a ballpoint pen.
1
2
3
Pay attention to
the and
marks
Press the ACL switch with
the tip of a ballpoint pen.
4
Using the remote control holder
The remote control can be attached to a wall or pillar
by using a 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.
Warning note for remote control handling
xAre the batteries running down?
“Replacing 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 operation function.
Contact your dealer to have the remote
control checked.
Below
Strictly prohibited
xDo not drop the remote control.
Handle with care.
xDo not go near high temperature
places, such as an electric 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.
xOPERATION MODE : AUTO
xFAN SPEED : AUTO
xAIR FLOW : AUTO
xOperation starts by pressing the unit ON/OFF button; it stops if you press
the button again.
xDo not hold the Unit ON/OFF button down for more than 5 seconds.
(Holding it down longer than 5 seconds sets the automatic cooling used during servicing or when relocating the air-conditioner.)
NOTE
Page 12
Operation program Unit ON/OFF button
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EN-10
Installing two air-conditioners in the same room
■When two air-conditioners are installed in the same room, use this setting when the two air-conditioners are not operated with one remote
control. Set the remote control and indoor unit.
Pull out the cover and take out bat-
teries.
Disconnect the switching line next to
the battery with wire cutters.
Setting the remote control
1
2
Disconnect
Insert batteries.
Close the cover.
3
Turn off the power source, and turn it on after 1 minute.
Point the remote control that was set according to the
procedure described on the left side at the indoor unit
and send a signal by pressing the ACL switch on the
remote control.
Check that the reception buzzer sound “pip” is emitted
from the indoor unit.
At completion of the setting, the indoor unit emits a buzzer sound
“pip”. (If no reception tone is emitted, start the setting from the begin-
ning again.)
Setting an indoor unit
1
2
3
Since the signal is sent in
about 6 seconds after the
ACL switch is pressed,
point the remote control
at the indoor unit for some
time.
Child Lock
■This function locks the remote control operation to prevent an operation error.
1Press the SET button for 3 seconds or longer.
is displayed. While Child Lock is set, only the ON/OFF button can be oper-
ated.
How to cancel
Turn off the light by pressing the SET button for 3 seconds or longer.
xWhile Child lock is set, the settings of operation mode, temperature, fan
speed and airflow direction cannot be changed. To change the settings,
reset Child lock.
NOTE
Reception
pip
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EN-11
OPERATION MODE select button
Each time the button is pressed, the
mode changes. Page 12,14
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
This button sets the room temperature.
AIR FLOW (UP/DOWN) button
This button changes the air Àow (up/
down) direction. Page 15
TIME SET UP switch
This switch is for setting the time.
Page 12
SLEEP button
This button selects SLEEP operation.
Page 16
Display in OFF status
The current time, day of the week, and present OPERATING MODE are displayed while the air-conditioner is turned off.
MENU switch
This switch selects SELF CLEAN
operation and PRESET operation.
Page 25
ON-TIMER button
This button selects ON-TIMER operation.
Page 17
TIMER button
Thisbutton is used forsettingthecurrent
time and timer function.
ACL switch
Switch for resetting microcomputer.
Page 9
PROGRAM button
This button sets WEEKLY TIMER.
Page 19
HI/ECO button
This button changes the HIGH POWER/
ECONOMY operation. Page 23
SILENT button
This button changes the SILENT
operation. Page 24
OFF-TIMER button
This button selects OFF-TIMER
operation. Page 16
WEEKLY button
This button switches the WEEKLY
TIMER to ON/OFF.
Page 19
FAN SPEED button
Each time the button is pressed, the fan
speed changes. Page 13
NIGHT SETBACK button
This button sets NIGHT SETBACK
operation. Page 24
SET/Child Lock button
Use this button to set the timer and
Child Lock. Page 10
CANCEL button
This button cancels the ON-TIMER,
OFF-TIMER, and SLEEP operation.
Transmission section
[View with the cover opened]
Operation and display section for remote control
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.
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EN-12
AUTO mode operation
■ Automatically selects the operation mode (COOL, HEAT) depending on the room temperature when switched on.
xIf you do not want theAUTO mode program, change to
COOL, HEAT or FAN instead of AUTO. Page 14
xAirÀow direction adjustment procedure. Page 15
AUTO mode can be
operated by simply
pressing the ON/OFF
button.
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.
1
2
NOTE
xIn case air is not blowing out
during the operation.
Page 31
xWhen the included clean ¿lter is
installed the air-conditioner will
clean the air during automatic
operation.
Current time setting
■When inserting the batteries, the current time is automatically set to time setting mode. Mon and 13:00 are displayed as the current time.
Set a correct day of the week and a time.
NOTE
2
Example: Set to Sat 10:30.
Press the TIME SET UP switch.
Press with the tip of a ballpoint pen, etc.
The day of the week display blinks, enabling the setting of a day of the week.
Press the “ or (TIMER)” button.
(Set to Sat)
Press the SET button.
The day of the week display changes from blinking to steady lighting, com-
pleting the setting of a day of the week, and the time display blinks.
Make sure to press the button within 60 seconds from the last operation in
step 2, otherwise the day of the week is not set.
Press the “ or (TIMER)” button.
(Set to 10:30)
Press the SET button.
The time 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 4, otherwise the time is not set.
xThe 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
4
5
xWhen the battery of the remote control is replaced or the ACL
switch is pressed, the remote control is set to the initial state.
Since the WEEKLY TIMER program is not set in the initial state,
set the program according to the setting procedure.
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EN-13
AUTO HiMeLoULo
Temperature adjustment during AUTO
■Default preset temperature duringAUTO 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.
FAN SPEED
ŶYou can choose the fan speed of your air-conditioner without 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 or ULo, the sound of
refrigerant Àowing may be heard.
NOTE
Operation capacity by your choice FAN SPEED
Set automatically by microcomputer AUTO
Silent operation ULo
Energy-saving operation Lo
Standard operation Me
Powerful operation with high capacity Hi
1Press the “ or (TEMP)” button.
■Each time the button is pressed, the switch over occurs in the following order
18 ĺ19 ĺ............ 23 ĺ24 ĺ25 ......... ĺ30.
When 30 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
30 ĺ29 ĺ............ 25 ĺ24 ĺ23 ......... ĺ18.
When 18 is indicated, even if the button is pressed, the indicator does not change.
Press the button.
When it is a little cold
Press the button.
When it is a little hot
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EN-14
COOL/HEAT/DRY/FAN mode operation
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
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 operable temperature setting
■Use within the following operational range. Operating outside of this range may result in the protection devices being activated,
preventing the unit from working.
Cooling operation Heating 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.
Characteristics of HEAT mode operation
Mechanism and capacity of HEAT mode operation
■Mechanism
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 ef¿cient
heating.
If this happens, the automatic defrost function is activated and during defrosting 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 sec. ON, 0.5 sec. OFF) during defrosting.
xThe outdoor unit may give off 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.
xAlthough the upper and lower air outlets are selected, the lower Àap closes during defrost.
Press the FAN SPEED button.
Set the fan speed as preferred.
A fan speed cannot be set under DRY operation.
Page 31
AirÀow direction adjustment procedure. Page 15
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EN-15
AirÀow direction adjustment
•When operation starts, the Àap direction is ¿xed at the horizontal position in order to avoid cold draft, and return to the set the posi-
tion that was set after the warm air supply is starting.
•The Àap direction will be controlled to the horizontal position when the room temperature reaches the set temperature and com-
pressor stops or when defrosting is in operation.
•The airÀow direction cannot be set during the period mentioned above. Change the airÀow direction settings after the warm air is
supplied and the Àap goes to the set position.
Adjusting airÀow direction
■Up/down direction can be adjusted with the AIRFLOW U/D (UP/DOWN) button on the remote control. Every time you press this
button the mode changes as follows:
Change on AIRFLOW (UP/DOWN) mode.
MEMORY FLAP (FLAP STOPPED)
When you press the AIRFLOW button once while the Àap is operating, it stops swinging at the position. Since this angle is memori-
zed in the microcomputer, the Àap will automatically be set at this angle when the next operation is started.
WARNING
•Do not expose directly to airÀow from the air-conditioner for a long time.
•Recommended angle of the flap when
stopping
NOTE FOR HEATING OPERATION
HEAT (Horizontal
blowing)
(Slant forward
blowing)
COOL, DRY
(Swing)(Flap stopped)
NOTE
•The actual position of the Àap may differ from the display shown.
CAUTION
•When in COOL or DRY operation, do not operate for a long period with the
airÀow blowing straight down. Otherwise, condensation may appear on the
outlet grill and drip down.
•Do not try to adjust the Àaps by hand, as the control angle may change or
the Àap may not be closed completely.
Adjusting left/right air Àow direction
Adjust the direction by moving the left/right air Àow ¿n by hand.
CAUTION
•When adjusting the air Àow direction, be careful with the
fans rotating in the air-conditioner.
Otherwise you may injure your ¿ngers.
•The lower Àap is not adjustable while the air-conditioner is
OFF.
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EN-16
■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:
Example: You prefer it to stop after 7 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 18
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.
xCannot be set at the same time with OFF-TIMER.
NOTE
OFF-TIMER operation
■The unit stops automatically when the set time comes.
With the air-conditioner turned off, start the operation from Step 1. With the air-conditioner 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 (TIMER)” button.
Every time the button is pressed, the display is switched in the order of:
0:00 0:10 0:20
...
(Units of ten minutes) 1:00 1:10
Every time the button is pressed, the display is switched in the order of:
0:00 23:50 23:40
...
(Units of ten minutes) 23:00 22:50
Set at 22:30.
3
1
4Press the SET 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 ad-
justment is not done during OFF-TIMER operation.
Changing of set time
Set a new time by using the OFF-TIMER button.
NOTE
Nodisplay
(canceled)
... (Units of one hour)
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EN-17
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
SLEEP TIMER + ON-TIMER operation
■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.
1SLEEP TIMER setting
Set by the procedures on page 16.
Set to
2ON-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 elapsed, 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.
Press the “ or (TIMER)” button.
Every time the button is pressed, the display is switched in the order of:
0:00 0:10 0:20
...
(Units of ten minutes) 1:00 1:10
Every time the button is pressed, the display is switched in the order of:
0:00 23:50 23:40
...
(Units of ten minutes) 23:00 22:50
Set at 8:00.
Press the SET button.
The display changes from blinking to steady lighting and the setting is
complete.
The timer light (yellow) is on.
The operation stops if it is set during operation.
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 18
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
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EN-18
ON-TIMER + OFF-TIMER operation
■The timer operations of the combination of ON and OFF-TIMER.
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.
1OFF-TIMER operation setting
Set by the procedures on page 16. Set to
2ON-TIMER operation setting
Set by the procedures on page 17. 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.
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 so
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 COOL, HEAT and DRY
operation mode (including
AUTO).
SLEEP TIMER
In COOL operation
(Stop) Operation starts
▼
Check the room
temp. 60 mins. 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 cool-
ing or too warm during heating.
xDuring cooling : The preset temperature is lowered by 1 °C at the start
of SLEEP operation (when the timer is set).After that, the temperature
goes up by 1 °C every an hour to become 1 °C higher than the present
temperature.
xDuring heating: The preset temperature is lowered by 1 °C at the start
of SLEEP operation (when the timer is set).After that the temperature
becomes 3 °C lower in an hour and 6 °C lower in two hours than the
present temperature.
(Operation)
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.
How to cancel
Press the CANCELor 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.
xThe air-conditioner stopping.
xThe air-conditioner running.
xTimer operation can be set only for next 24 hours.
NOTE
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