Page 1
USER’S MANUAL
ORIGINAL INSTRUCTIONS
AIR-CONDITIONER
SRK20ZS-S
SRK25ZS-S
SRK35ZS-S
SRK50ZS-S
USER’S MANUAL
AIR-CONDITIONER
MANUEL DE L’UTILISATEUR
CLIMATISEUR
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
ENGLISH
FRANÇAIS
DEUTSCH
ITALIANO
ESPAN˜OL
NEDERLANDS
PORTUGUÊS
РУКОВОДСТВО ПО ЭКСПЛУАТАЦИИ
This air-conditioner complies with EMC Directive 2014/30/EU, LV
Directive 2014/35/EU.
Ce climatiseur est conforme à la directive CEM 2014/30/UE et à
la directive basse tension 2014/35/UE.
Dieses Klimagerät erfüllt die Richtlinien zur elektromagnetischen
Verträglichkeit 2014/30/EU und die Niederspannungsrichtlinie
2014/35/EU.
Questo condizionatore d’aria è conforme alla Direttiva EMC 2014/30/
UE e alla Direttiva LV 2014/35/UE.
ΟΔΗΓΙΕΣ ΧΡΗΣΗΣ
ΚΛΙΜΑΤΙΣΤΙΚΟ
КОНДИЦИОНЕР ВОЗДУХА
KULLANIM KILAVUZU
Este equipo de aire acondicionado cumple con la Directiva de
Compatibilidad Electromagnética: 2014/30/EU, y con la Directiva
de Baja Tensión 2014/35/EU.
Deze airconditioner voldoet aan EMC-Richtlijn 2014/30/EU, LVRichtlijn 2014/35/EU.
Este aparelho de ar condicionado está em conformidade com a
Directiva EMC 2014/30/UE e a Directiva LV 2014/35/UE.
Το συγκεκριμένο κλιματιστικό συμμορφώνεται προς την Οδηγία 2014/30/ΕΕ
περί ηλεκτρομαγνητικής συμβατότητας και προς την οδηγία 2014/35/ΕΕ περί
χαμηλής τάσης.
ΕΛΛΗΝΙΚΑ
РУССКИЙ
TÜRKÇE
RLF012A102
Page 2
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.
This air-conditioner is intended for domestic use.
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 CO2
equivalent.
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 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 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 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.
ENGLISH
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 .................6
Remote control ...............................................8
Operation failure with the remote control ........8
Temporary run operation ................................8
Installing two air-conditioners
in the same room ............................................9
Child lock ........................................................9
Airflow range setting .....................................10
Operation and display section
for remote control .........................................11
Current time setting .....................................12
AUTO mode operation ..................................12
Temperature adjustment during AUTO mode
...13
FAN SPEED .................................................13
COOL/HEAT/DRY/FAN mode operation .......14
Air-conditioner operation temperature range
....14
Characteristics of HEAT mode operation ......14
Airflow direction adjustment ..........................15
3D AUTO operation ......................................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
ALLERGEN CLEAR operation .....................18
WEEKLY TIMER operation ..........................19
HIGH POWER/ECONOMY operation...........23
NIGHT SETBACK operation .........................24
SILENT operation .........................................24
MENU function
Display brightness adjustment ...................25
SELF CLEAN operation .............................26
PRESET operation ....................................26
Auto restart function .....................................27
Tips for effective operation ...........................27
Maintenance .................................................28
Proper installation .........................................30
Troubleshooting ...........................................30
Notice ...........................................................31
Contact your dealer ......................................32
About the multiple air-conditioners ...............32
Self diagnosis function ..................................33
– 1 –
Page 3
Safety precautions
•
Before starting to use the system, please read these “Safety precautions” carefully to ensure
proper operation of the system.
•
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
CAUTION
Please observe these precautions with great care, since they are essential to your safety.
•
Symbols which appear frequently in the text have the following meaning:
Strictly prohibited
❚ INSTALLATION PRECAUTIONS
Indicates a potentially hazardous situation which, if not avoided, can
result in serious consequences such as death or severe injury.
Indicates a potentially hazardous situation which, if not avoided, can
result in personal injury or property damage.
Observe instructions
with great care
Provide proper
earthing
WARNING
•
The system is for domestic and residential use.
If used in severe environments, such as an engineering workplace, the equipment may
function poorly.
•
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.
•
Do not install it where flammable gas may leak.
Gas leaks may cause fire.
•
Make sure that an earth leakage
breaker is installed.
If you do not install an earth leakage
breaker, you may get an electric shock.
•
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.
CAUTION
•
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.
– 2 –
Page 4
❚ Safety precautions
❚ OPERATION PRECAUTIONS
•
Children shall not play with the
air-conditioner.
•
Do not expose yourself to the cooling
air for a long period.
This could affect your physical condition
and cause health problems.
•
This appliance 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 appliance in a safe way and understand the hazards involved.
•
Store the remote control out of reach of children.
Failure to observe this may result in the batteries being swallowed or other accidents.
WARNING
•
Cleaning and user maintenance shall
not be made by children without
supervision.
•
Do not insert anything into the air
outlet.
This may cause injury, as the internal fan
rotates at high speed.
CAUTION
•
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.
•
Do not handle the switches with wet
hands.
This may cause an electric shock.
•
Do not swing from the indoor unit.
If the indoor unit falls down,you may get
injured.
•
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.
•
Do not expose any combustion
appliance directly to the air stream of
the air-conditioner.
The combustion appliance may
malfunction.
•
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.
•
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.
•
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.
•
Do not install the air-conditioner where
the airflow direction is aimed directly at
plants or animals.
This will damage their health.
•
Do not sit on the outdoor unit nor put
anything on it.
If the unit falls down or things drop from it,
people could get hurt.
•
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.
– 3 –
Page 5
❚ Safety precautions
•
Do not touch the aluminum fins on the
heat exchanger.
It may result in injury.
•
Do not place household electrical
appliances or household items underneath the indoor or outdoor units.
Condensation falling from the unit may
stain objects and cause accidents or
electrical shock.
•
Do not operate the system without the
air filter.
It can cause malfunction of the system
due to clogging of the heat exchanger.
•
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.
•
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.
•
When you clean air-conditioner, stop
the unit and turn off the power source.
Never open the panel while the internal
fan is rotating.
•
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.
CAUTION
•
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.
•
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.
•
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.
•
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.
•
Stop the unit and turn off the power if
you hear thunder or there is a danger
of lightning.
It may damage the unit.
•
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.
– 4 –
Page 6
❚ Safety precautions
❚ PRECAUTIONS FOR RELOCATION OR REPAIRS
WARNING
•
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.
•
Consult your dealer for repairs.
Wrong repairs could cause an electric
shock, fire, etc.
•
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.
•
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.
•
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.
– 5 –
Page 7
Name of each part and its function
INDOOR UNIT
Air inlet panel Air inlet
Page 28
Air filter
Page 28
Fan
• Inside of
the unit
Heat exchanger
(Aluminum fin)
Louvers
(Vertical blades)
• Left / right airflow
direction adjustment
Flaps
(Horizontal blades)
• Up / down airflow
direction adjustment
Room temperature
sensor
Air outlet
Unit display
section
Page 7
Air-cleaning filter
• Allergen clear filter
(Light orange)
Filter holder
• Photocatalytic washable
deodorizing filter (Orange)
Filter holder
SPLIT TYPE
MODEL
SERVICE CODE
POWER SUPPLY
( INDOOR UNIT )
OUTDOOR UNIT
Air inlet
(back and side)
Fan
• Inside of the unit
Heat exchanger
(Aluminum fin)
Drain hole
* The appearance varies by models
Air outlet
WARNING
DO NOT INSERT ANYTHING
INTO THE AIR OUTLET.
IT MIGHT CAUSE INJURY.
CAUTION
SHARP EDGE OF FINSMOVING FAN BLADES
DO NOT TOUCH THE
ALUMINUM FINS.
IT MIGHT CAUSE INJURY.
Model name
Refrigerant pipe
and electric wire
Drain hose
Model name
DO NOT STEP ON TOP OF THIS UNIT.
IT MIGHT CAUSE INJURY.
Don't touch
the terminal
block.
Don't touch
refrigerant
pipings and
connections.
– 6 –
Page 8
Name of each part and its function
Unit display section
RUN light (green)
• Illuminates during operation.
•
Blinks slowly when CLEAN operation
(3 seconds ON, 1 second OFF).
Page 26
• Blinks when airflow is stopped to
prevent blowing out of cold air in
heating operation. (1.5 seconds ON,
0.5 seconds OFF)
Page 31
Accessories
Remote control signal receiver
Unit ON/OFF button
This button can be used for turning on/off
the unit when a remote control is not available.
Page 8
TIMER light (yellow)
Illuminates during TIMER operation.
• RUN and TIMER lights blink quickly during invalid operation mode.
Page 33
Battery ×2
(R03 (AAA, Micro))
Remote control Remote control
NOTE
• Buzzer sound for remote control
Buzzer sound (PiPi) is produced when
preset temperature is set to 24 °C or,
AUTO operation mode is selected or,
automatic airflow is selected.
Buzzer sound (Pi) is produced when
air-conditioner is turned off by pressing ON/OFF button (except CLEAN mode).
holder
Airflow setting
Wood screw ×2
(for remote control holder mounting)
Preset temperature
Allergen clear filter
(Light orange)
Photocatalytic washable
deodorizing filter (Orange)
Filter holder ×2
– 7 –
Page 9
Remote control
Setting the batteries
Pull out the cover.
1
Insert new batteries.
2
R03 (AAA, Micro) x2
Pay attention to
the
and
marks
Close the cover.
3
Press the ACL switch with
the tip of a ballpoint pen.
4
• Set the current time.
Page 12 Step 2
NOTE
• Do not use old and new batteries together.
• Remove the batteries when the remote control is not used for a long period.
• The 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.
• The 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.
■ When the display shows any abnormal condition, press the ACL switch with the
tip of a ballpoint pen.
Using the remote control holder
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.
The following cases show exhausted batteries. Replace old batteries with new ones.
• Receiving beep is not emitted when a signal is transmitted.
• Display fades away.
Warning note for remote control
Strictly prohibited
•
Do not take remote control near
high temperature places, such as an
electric heating carpet or a stove.
• Do not put any obstructing
obstacles between the remote
control and the unit.
• Do not leave the remote control
exposed to direct sunlight or other
strong lighting.
• Do not spill any liquid on the
remote control.
• Do not drop the remote control.
Handle with care.
• Do not place heavy objects on the
remote control, or step on it.
Operation failure with the remote control
• Are the batteries running down?
“Setting the batteries” above.
Replace the batteries with new ones and retry the
operation.
• If the operation fails, operate the unit with
temporary run operation function.
Contact your dealer to have the remote
control checked.
Below
Temporary run operation
• The 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
• Operation starts by pressing the unit ON/OFF button; it stops if you press
the button again.
NOTE
• Do 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.)
Unit ON/OFF button
– 8 –
Page 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.
Setting the remote control
Pull out the cover and take out
1
batteries.
Disconnect the switching line next to
2
the battery with wire cutters.
Disconnect
Insert batteries.
3
Close the cover.
Setting an indoor unit
Turn off the power source and turn it on after 1 minute.
1
Point the remote control (that was set according to the
2
procedure described on the left side) at the indoor unit
and send a signal by pressing the ACL switch on the
remote control.
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.
Check that the reception buzzer sound “pii” is emitted
3
from the indoor unit.
At completion of the setting, the indoor unit emits a buzzer sound
“pii”. (If no reception sound is emitted, start the setting from the
beginning again.)
Reception
pii
Child lock
■ This function locks the remote control operation to prevent an operation error.
1
Releasing procedure
Turn off the light by pressing the SET button for 3 seconds or more.
• While Child lock is set, the settings of temperature, fan speed and airflow
• Child lock will not function during ALLERGEN CLEAR operation.
Press the SET button for 3 seconds or more.
is displayed. When Child lock is set, only the ON/OFF button can be
operated.
NOTE
direction cannot be changed. To change the settings, reset Child lock.
– 9 –
Page 11
Airflow range setting
■ Take the air-conditioner location into account and adjust the left/right airflow range to maximize air-conditioning.
If the air-conditioner is running, press the ON/OFF
1
2
3
button to stop.
The airflow range setting cannot be made while the unit is running.
Press the AIR FLOW U/D (UP/DOWN) button and
the AIR FLOW L/R (LEFT/RIGHT) button together for
5 seconds or more.
The airflow range setting display illuminates.
Setting the airflow range.
Press the AIR FLOW L/R (LEFT/RIGHT) button and adjust to the desired
location.
Each time the AIR FLOW L/R (LEFT/RIGHT) button is pressed, the display is
switched in the order of:
4
(Center Installation)
Press the ON/OFF button.
The air-conditioner’s airflow range is set.
Press within 60 seconds of setting the airflow range (while the airflow range
setting display illuminates).
(Right End Installation) (Left End Installation)
Air-conditioner installation location and airflow range
The diagram below indicates the airflow ranges corresponding to the air-conditioner’s installation location. Consider your room’s layout
and set the airflow range to maximize air-conditioning.
Airflow range Airflow range Airflow range
(Left End Installation) (Center Installation) (Right End Installation)
NOTE
• Once the airflow range setting is configured, it is stored in the air-conditioner even if the power source is turned off. To change the
airflow range setting, set range again with the remote control.
• During the operation, an airflow range setting cannot be set.
• When the air-conditioner is installed at the location within 50 cm from the wall, it is recommended to change the airflow range setting
to “Right End Installation” or “Left End Installation”.
– 10 –
Page 12
Operation and display section for remote control
Transmission section
OPERATION MODE select button
Each time the button is pressed, the
mode changes.
Page 12,14
TEMPERATURE button
This button sets the room temperature.
HI/ECO button
This button changes the HIGH POWER/
ECONOMY operation.
Page 23
AIR FLOW (LEFT/RIGHT) button
This button changes the airflow (left/
right) direction.
Page 15
SILENT button
This button sets the SILENT operation.
Page 24
ALLERGEN CLEAR button
This button selects ALLERGEN CLEAR
operation.
Page 18
ON/OFF (luminous) button
Press to start operation, press again
to stop.
FAN SPEED button
Each time the button is pressed, the fan
speed changes.
Page 13
AIR FLOW (UP/DOWN) button
This button changes the airflow (up/
down) direction.
Page 15
3D AUTO button
This button sets 3D AUTO operation.
Page 15
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 9
ON TIMER button
This button selects ON TIMER operation.
Page 17
OFF TIMER button
This button selects OFF TIMER
operation.
Page 16
WEEKLY button
This button switches the WEEKLY
TIMER to ON/OFF.
Page 19
MENU switch
This switch selects the CLEAN
operation, display brightness adjustment
and PRESET operation.
Page 25
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.
[View with the cover opened]
The above illustration shows all controls, but in practice
only the relevant parts are shown.
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.
CANCEL button
This button cancels the ON timer, OFF
timer, and SLEEP operation.
TIMER button
This button is used for setting the current
time and timer function.
PROGRAM button
This button sets WEEKLY TIMER.
Page 19
ACL switch
This switch resets the program to default
state.
Page 8
TIME SET UP switch
This switch is used for setting the time.
Page 12
– 11 –
Page 13
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 time.
Example: Set to Sat 10:30.
1
2
3
4
5
NOTE
• The timer operation works based on the time clock, so set it
correctly.
• The remote control data will be reset when the present time is
set.
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,
completing 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 will not be 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 will not be set.
• When the battery of the remote control is replaced or the ACL
switch is pressed, the remote control will be 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.
AUTO mode operation
■ Automatically selects the operation mode (COOL, HEAT, DRY) depending on the room temperature when switched on.
Press the MODE button.
1
The mode changes whenever the button is pressed.
.
Set to
Press the ON/OFF button.
2
To stop: Press the ON/OFF button.
NOTE
• In case air is not blowing out
during the operation.
Page 31
• If you do not want the AUTO mode program, change
to COOL, HEAT, DRY or FAN instead of AUTO.
• Airflow direction adjustment procedure.
Page 14
Page 15
– 12 –
Page 14
Temperature adjustment during AUTO mode
■ 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.
FAN SPEED
■ The FAN SPEED can be set without DRY mode.
1
Press the“ or (TEMP)” button.
When it is a little cold
Press the button.
■ Each time the button is pressed, the switch over occurs in the following order
18 → 19 → ............ 23 → 24 → 25 ......... → 30.
When 30 is indicated, even if the button is pressed, the indicator does not change.
When it is a little hot
Press the button.
■ Each time the button is pressed, the switch over occurs in the following order
30 → 29 → ............ 25 → 24 → 23 ......... → 18.
When 18 is indicated, even if the button is pressed, the indicator does not change.
1
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
• When FAN SPEED is changed from Hi to Lo or ULo, the sound of
Press the FAN SPEED button.
Each time the button is pressed, the fan speed changes.
AUTO HiMeLoULo
NOTE
refrigerant may be heard.
– 13 –
Page 15
COOL/HEAT/DRY/FAN mode operation
Airflow direction adjustment procedure. Page 15
NOTE
• In case air is not blown out, when starting the heating
operation.
• The operation mode can also be set or changed when the
air-conditioner is not in operation.
Page 31
1
2
3
4
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 HEAT DRY FAN
26 °C - 28 °C 22 °C - 24 °C 24 °C - 26 °C —
Press the FAN SPEED button
Set the fan speed as preferred.
A fan speed cannot be set under Dry operation.
To stop: Press the ON/OFF button.
Air-conditioner operation temperature range
■ Use within the following operational range. Operating outside of this range may result in the protection devices being activated,
preventing the unit from working.
COOL mode operation HEAT mode operation
Outside temperature
Inside temperature
Inside humidity
Approximately -15 to 46 °C Approximately -15 to 24 °C
Approximately 18 to 32 °C Approximately 10 to 30 °C
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
• The 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.
• It may take some time to supply hot air after turning on the air-conditioner.
• If 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.
• Both indoor and outdoor fans stop and the RUN light blinks slowly (1.5 seconds ON, 0.5 seconds OFF) during defrosting.
• The outdoor unit may release some steam during defrosting. This is to help the defrosting process and is not a defect.
• The HEAT operation resumes as soon as defrosting has been completed.
– 14 –
Page 16
Airflow direction adjustment
■
Up/down direction can be adjusted with the AIR FLOW U/D (UP/DOWN) button on the remote control. Every time you press this button,
the mode changes as follows:
Change on AIR FLOW (UP/DOWN) mode.
(Flap stopped)
■ Left/right direction can be adjusted with the AIR FLOW L/R (LEFT/RIGHT) button on the remote control. Every time you press this
button, the mode changes as follows:
Change on AIR FLOW (LEFT/RIGHT) mode.
(Louver stopped)
(Swing)
NOTE
• The actual position of the flap and louver may differ from the display shown.
NOTE FOR HEATING OPERATION
• When heating operation starts, the flap and louver direction is fixed at the horizontal / center position in order to avoid cold draft. It
returns to the set position when the warm air supply is started.
• The flap and louver direction will be controlled to the horizontal/center position when the room temperature reaches the set
temperature and compressor stops or when defrosting is in operation.
• The airflow direction cannot be set during the period mentioned above. Change the airflow direction settings after the warm air is
supplied and the flap/louver goes to the set position.
(Swing)
Memory flap (Flap or louver stopped)
When you press the AIR FLOW (U/D or L/R) button once while the flap or louver is operating, it stops swinging at the position.
Since this angle is memorized in the microcomputer, the flap or louver will automatically be set at this angle when the next
operation is started.
WARNING
• Do not expose directly to airflow from the air-conditioner for a long time.
CAUTION
• When 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.
• Do not try to adjust the flaps and louvers by hand, as the control angle may
change or the flap or louver may not be closed completely.
• Recommended angle of the flap when
stopping
HEAT
COOL, DRY
(Slant forward
blowing)
(Horizontal
blowing)
3D AUTO operation
■ Fan speed and airflow direction are automatically controlled, allowing the entire room to be efficiently air-conditioned.
1
2
Releasing procedure
Press the 3D AUTO button to turn off the 3D AUTO display.
• 3D AUTO operation is canceled when you switch the operation mode.
• If 3D AUTO operation is canceled then the airflow direction changes to that
• 3D AUTO operation can be set in AUTO, COOL, or HEAT operation mode
Press the ON/OFF button.
Press the 3D AUTO button.
Each time the 3D AUTO button is pressed, the display is switched in the
order of:
No display
(Normal operation)(3D AUTO)
NOTE
used before 3D AUTO was set.
only.
– 15 –
Page 17
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
Changing of set time
Set a new time by pressing SLEEP button.
How to cancel
Press the CANCEL button to turn off the SLEEP
display.
1
Press the SLEEP button.
■ 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.
• The unit stops after the set time lapses.
NOTE
• SLEEP operation will not function during ALLERGEN CLEAR operation.
• SLEEP TIMER cannot be set simultaneously with OFF TIMER.
(canceled)
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.
1
2
3
4
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
Every time the button is pressed, the display is switched in the order of:
0:00 23:50 23:40
Set at 22:30.
Press the SET button.
The display changes from blinking to steady lighting and the setting is
complete.
The timer light (yellow) is on.
NOTE
...
1:00 1:10
...
23:00 22:50
(Units of ten minutes)
(Units of ten minutes)
Changing of set time
Set a new time by using the OFF TIMER button.
How to cancel
Press the CANCEL button to turn off the timer
display.
• The unit stops at the end of the set period of time.
• Make sure to press the button within 60 seconds from the last operation
in step 3, otherwise the setting is not completed.
• The current time is not displayed during OFF TIMER operation.
• OFF TIMER operation will not function during ALLERGEN CLEAR
operation.
• Different from SLEEP TIMER operation, automatic set temperature
adjustment is not done during OFF TIMER operation.
– 16 –
Page 18
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.
Example: When the preferred room temperature is required at 8:00.
Press the ON TIMER button.
1
2
3
ON 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
Every time the button is pressed, the display is switched in the order of:
0:00 23:50 23:40
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.
If ON TIMER setting is performed when air-conditioner is running,
air-conditioner operation will stop.
NOTE
...
1:00 1:10
...
23:00 22:50
(Units of ten minutes)
(Units of ten minutes)
Changing of set time
Set a new time by using the ON TIMER button.
How to cancel
Press the CANCEL button to turn off the timer
display.
• Operation starts 5 to 60 minutes before the set time.
• The timer light (yellow) goes out at the set time.
• Make sure to press the button within 60 seconds from the last operation
in step 2, otherwise the setting is not completed.
• The current time is not displayed during ON TIMER operation.
• ON TIMER operation will not function during ALLERGEN CLEAR
operation.
• If the ON/OFF button is pressed after setting the ON TIMER, the setting
will be canceled.
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
1
Set by the procedures on page 16.
Set to
ON TIMER operation setting
2
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.
Changing of set time
Set a new time by using the SLEEP or ON TIMER
button.
• After 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.
• The timer light is turned off when ON TIMER set time comes.
How to cancel
Press the CANCEL button to turn off the timer display.
– 17 –
Page 19
ON TIMER + OFF TIMER operation
■ This is the combined timer operation of ON TIMER 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.
OFF TIMER operation setting
1
Set by the procedures on page 16. Set to
ON TIMER operation setting
2
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.
• The air-conditioner stopping.
• The air-conditioner running.
Changing of set time
Set a new time by using the OFF TIMER or ON TIMER button.
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.
NOTE
Timer operation can be set only for next 24 hours.
•
How to cancel
Press the CANCEL or ON/OFF button to turn off the timer display.
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”.
• Mechanism
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.
• The function is available
for both COOL and HEAT
operation mode (including
AUTO). It does not work for
DRY mode.
In COOL operation
▼
(Stop) Operation starts
Set temperature
Check the room
temp. 1 hour before.
▼
(Operation)
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.
COOL operation
▼
+1.0°C
Set temperature
-1.0°C
Set time Set time
▼
1 hour
ALLERGEN CLEAR operation
■ The power of enzymes is used to eliminate allergy-causing allergens that
accumulate on the allergen clear filter.
Press the ALLERGEN CLEAR button.
1
SLEEP TIMER
HEAT operation
▼
Set temperature
-1.0 °C
-2.0 °C
-3.0 °C
2 hour
-6.0 °C
▼
1 hour
30 minutes
2 hour
To stop:
NOTE
• Since the room temperature may change quite a bit, it is recommended
that this be used when no one is in the room. (It completes automatically
in approximately 90 minutes.)
• During ALLERGEN CLEAR operation temperature, fan speed, airflow
direction and timer operations settings cannot be made.
• In case of SCM multi system, ALLERGEN CLEAR control function is
invalid.
• In case of SCM multi system, if ALLERGEN button is pressed by
mistake, the indoor unit which received such command will stop.
Press the ON/OFF or
ALLERGEN CLEAR button.
– 18 –
Page 20
WEEKLY TIMER operation
■ Up to 4 programs with timer operation (ON TIMER / OFF TIMER) are available for each day of the week. Maximum 28 programs per week
are available. Once this has been set, the timer operation will be repeated at the same programs every week unless the WEEKLY TIMER
is canceled.
Sample (At cooling season)
: WEEKLY TIMER setting
: MANUAL setting
WEEKLY TIMER ON/OFF setting
■ Switch the WEEKLY TIMER to ON/OFF by using the WEEKLY button.
Press the WEEKLY button.
1
NOTE
• The WEEKLY TIMER is switched to ON/OFF regardless of
whether the air-conditioner is running or not.
• The ON TIMER operation of the WEEKLY TIMER is effective
regardless of whether the air-conditioner is running or not.
When the ON TIMER setting time is reached, the remote
control operates according to the contents that are set. The
remote control display is also switched to the operation
contents that are set. The setting can be changed from the
remote control after ON TIMER operation of the WEEKLY
TIMER.
The following contents can be set by the ON TIMER.
Operation mode, fan speed, temperature, airflow direction,
ECONOMY, 3D AUTO, NIGHT SETBACK, SILENT
Comfort start-up is not performed for WEEKLY TIMER
ON TIMER operation.
The WEEKLY TIMER becomes effective.
Every time the WEEKLY button is pressed, the display is switched in the
order of:
When the WEEKLY TIMER is set to ON, the timer light (yellow) of the
air-conditioner is on.
When 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.
No display
(WEEKLY TIMER on)
• OFF TIMER operation of the WEEKLY TIMER is effective only
when the air-conditioner is running. When the time set by the
OFF TIMER is reached, the air-conditioner stops.
• When multiple program numbers are set for the current day
(day of the week), the operation is performed from the earliest
time that is set.
• When various timers (ON TIMER, OFF TIMER, and SLEEP
TIMER) are operating, the WEEKLY TIMER does not operate
even if the time set in the ON TIMER or OFF TIMER is
reached. The WEEKLY TIMER becomes effective after various
timers are terminated.
• The ON TIMER or OFF TIMER of the same time in the same
day of the week cannot be set.
• In case WEEKLY TIMER setting is not sent to the unit, TIMER
light will not turn on even if the WEEKLY button is pressed and
is displayed on the remote control.
(WEEKLY TIMER off)
– 19 –
Page 21
Setting mode <Individual setting>
Set after setting the current day of the week and the time.
1
2
3
Press the PROGRAM button.
and current day of the week blink.
Press the “ or (TIMER)” button.
Select a day of the week to be reserved.
Every time the button is pressed, the display is switched in
the order of:
Mon Tue Wed
Every time the button is pressed, the display is switched in
the order of:
Mon Sun
Display of all of the days of
the week
Press the SET button.
The day of the week is determined and the program number
blinks.
...
Display of all of the days of
Sun
the week
Sat
...
Tue
4
5
6
Press the “ or (TIMER)” button.
Select a program number.
Every time the button is pressed, the display is switched in the
order of:
P1 P2 P3 P4
Every time the
order of:
P1 P4 P3 P2
Press the SET button.
When no set contents (ON TIMER or OFF TIMER) are
available, both the
When set contents (ON TIMER or OFF TIMER) are
available, either
Press the ON TIMER or OFF TIMER button.
ON TIMER or OFF TIMER is determined and time display blinks.
button is pressed, the display is switched in the
and timers blink.
or timer blinks.
ON TIMER is selected OFF TIMER is selected
– 20 –
Page 22
7
8
9
Press the “ or (TIMER)” button.
Set a time.
Every time the button is pressed, the display is switched in the
order of:
0:00 0:10 0:20
Every time the button is pressed, the display is switched in the
order of:
0:00 23:50 23:40
When ON TIMER is selected, go to Step 8.
When OFF TIMER is selected, go to Step 9.
Set required operation contents.
When ON TIMER is selected, operation mode, fan speed, and airflow direction can be
changed and the ECONO, SILENT or NIGHT SETBACK operation can be set.
Press the SET button.
The time is determined and and blink.
...
1:00 1:10
...
23:00 22:50
(Units of ten minutes)
(Units of ten minutes)
Press the PROGRAM button or SET button.
10
When the PROGRAM button is pressed, the setting is sent to the air-conditioner.
Since it takes 3 seconds for transmission, point the remote control at the remote control
signal receiver of the indoor unit during the period.
When the setting is received, a buzzer sound (pi, pi, pi) is emitted.
When the SET button is pressed, the setting continues from Step 2.
Setting mode <Collective setting>
■ Set the same operation contents to the same program number of all the days of the week. In Step 2 above, select “all of the days of the
week”. When the contents that were individually set exist in the same program number, the contents are overwritten.
NOTE
• If no operation is performed for 60 seconds in setting mode, the setting changes that have been made until then become invalid and
the setting mode terminates. Subsequently,
(This blinking can not be observed if setting mode gets terminated while setting only one program.)
• At the end of the setting mode, point the remote control at the air-conditioner and press the PROGRAM button. In this case, check
that the air-conditioner emits a reception buzzer sound three times (pi, pi, pi). If the buzzer sound is not emitted, set the mode to the
setting mode again by pressing the PROGRAM button and check that the buzzer sound is emitted.
and all the program numbers (P1, P2, P3 and P4) blink for 10 seconds.
– 21 –
Page 23
How to cancel the setting <Individual setting>
1
Press the PROGRAM button.
and current day of the week blink.
2
3
4
5
6
How to cancel the setting <Collective setting>
Press the “ or (TIMER)” button.
Select a day of the week to be canceled.
Press the SET button.
The day of the week is determined and the program number blinks.
Press the “ or (TIMER)” button.
Select a program number to be canceled.
At cancelation operation, do not press the SET button. If the SET button is
pressed, the mode is shifted to the Set mode.
Press the CANCEL button.
The setting contents of the ON or OFF TIMER are canceled and is
displayed on the time display section.
Press the PROGRAM button.
When the PROGRAM button is pressed, the setting is sent to the
air-conditioner.
When the setting is received, a buzzer sound (pi, pi, pi) is emitted.
The setting contents of each program are canceled. Perform the operation
indicated above for each program to be canceled.
■ When the same operation contents exist in the same program number of all the days of the week, collective erase is allowed. In Step 2
above, select “all of the days of the week”. The procedure from Step 3 is the same as that indicated above.
If the operation contents have been changed or erased by individual setting after the collective setting described in page 21, causing
setting content discrepancies among the days of the week, collective erase is not allowed.
Confirm mode
The WEEKLY TIMER setting contents can be confirmed.
Press the PROGRAM button for 3 seconds or more.
1
2
Releasing procedure
The Confirm mode can be terminated by pressing the ON/OFF, CANCEL or
SET button.
blinks and the setting content lights.
Press the “ or (TIMER)” button.
Select a day of the week and a program number to be confirmed.
Display starts from the current day of the week. For the program without
setting, is displayed. When the PROGRAM button is pressed in
Confirm mode, a setting mode is set.
Mon P1 P2 P3 P4
P1 P2 P3 P4Tue
Sun P1 P2 P3 P4
Display of all of the
days of the week
P1 P2 P3 P4
NOTE
• If no operation is performed for 60 seconds in Confirm mode, the Confirm
mode is terminated.
– 22 –
Page 24
HIGH POWER/ECONOMY operation
1
2
Press the ON/OFF button.
Press the HI/ECO button.
• When the operating mode is AUTO, COOL or HEAT
Every time the HI/ECO button is pressed, the display is switched in the
order of:
No display
(
HIGH POWER
• When the operating mode is DRY or ON TIMER + OFF TIMER
Every time the HI/ECO button is pressed, the display is switched in the
order of:
(
ECONOMY
)(
ECONOMY
) (Normal operation)
)
(Normal operation)
No display
HIGH POWER operation
Pressing the HI/ECO button intensifies the operating power and initiates powerful cooling or heating operation for 15 minutes
continuously. The remote control displays and the FAN SPEED display disappears.
NOTE
• During the HIGH POWER operation, the room temperature
is not controlled. When it causes an excessive cooling or
heating, press the HI/ECO button again to cancel the HIGH
POWER operation.
• HIGH POWER operation is not available during the DRY and
ON TIMER + OFF TIMER operations.
• When HIGH POWER operation is set after setting
ON TIMER operation, HIGH POWER operation will start from
the set time.
• After HIGH POWER operation, the sound of refrigerant
flowing may be heard.
• When the following operations are set, HIGH POWER
operation will be canceled.
1 When the HI/ECO button is pressed again.
(The operation mode will be changed to the ECONOMY
operation)
2 When the operation mode is changed.
3 When it has been 15 minutes since HIGH POWER
operation has started.
4 When the 3D AUTO button is pressed.
5 When the SILENT button is pressed.
6 When the NIGHT SETBACK button is pressed.
• Not operable while the air-conditioner is OFF.
ECONOMY operation
Pressing the HI/ECO 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 disappears.
NOTE
• It will go into ECONOMY operation at the next time the airconditioner runs in the following case.
1
When the air-conditioner is stopped by ON/OFF button
during ECONOMY operation.
2
When the air-conditioner is stopped in SLEEP or OFF
TIMER operation during ECONOMY operation.
3 When the operation is retrieved from CLEAN or
ALLERGEN CLEAR operation.
• When the following operations are set, ECONOMY operation
will be canceled.
1 When the HI/ECO button is pressed again.
2 When the operation mode is changed from DRY to
FAN.
3 When the NIGHT SETBACK button is pressed.
• Not operable while the air-conditioner is OFF.
– 23 –
Page 25
NIGHT SETBACK operation
■ During the cold season, the room temperature can be maintained at a comfortable level during the absence, at night, and while the room
is unattended. The air-conditioner maintains the constant temperature at about 10°C.
Press the NIGHT SETBACK button.
1
Every time the NIGHT SETBACK button is pressed, the display is switched
in the order of:
(NIGHT SETBACK on) (NIGHT SETBACK off)
Releasing procedure
Press the NIGHT SETBACK button or MODE button to turn off the NIGHT
SETBACK display.
NOTE
• During NIGHT SETBACK operation, the air-conditioner maintains the set
temperature at about 10°C.
• During NIGHT SETBACK operation, temperature settings cannot be
made.
• Since the room temperature may change quite a bit, it is recommended
that this be used when no one is in the room.
• During NIGHT SETBACK operation, HIGH POWER and ECONOMY
operations cannot be set.
• When NIGHT SETBACK operation is canceled by pressing the NIGHT
SETBACK button, the operation mode is reset to the mode immediately
prior to the NIGHT SETBACK operation.
No display
SILENT operation
■ When the SILENT operation is set, the unit operates more silently reducing noise from the outdoor unit.
With the air-conditioner turned off, start the operation from Step 1. With the air-conditioner running, start from Step 2.
1
2
Releasing procedure
Press the SILENT button to turn off the SILENT display.
• During SILENT operation, the maximum cooling and heating capacities
• SILENT operation will not function during DRY and FAN operation.
• In case of following operations, the air-conditioner will resume SILENT
• Not operable while the air-conditioner is OFF.
• The noise level of the outdoor unit may not decrease depending on the
• In case of SCM multi system, SILENT control is invalid.
Press the ON/OFF button.
Press the SILENT button.
• When the operating mode is AUTO, COOL, HEAT or NIGHT SETBACK
Every time the SILENT button is pressed, the display is switched in the
order of:
No display
(SILENT on) (SILENT off)
NOTE
deteriorate.
operation whenever it turns ON again.
1
When the air-conditioner is stopped by ON/OFF button during SILENT
operation.
2 When the air-conditioner is stopped in SLEEP or OFF TIMER
operation during SILENT operation.
3 When the operation is retrieved from CLEAN or ALLERGEN
CLEAR operation.
condition.
– 24 –
Page 26
MENU function
■ MENU function is used for setting the display brightness adjustment, SELF CLEAN operation and PRESET operation.
Every time the MENU switch is pressed with the tip of
1
a ballpoint pen, etc., the display is switched in order of:
Display brightness
adjustment
Display brightness adjustment
■ This function can be used when it is necessary to adjust the brightness of unit display.
Select the display brightness adjustment by pressing
1
the MENU switch.
SELF CLEAN
operation
PRESET operation
2
3
Select the brightness level by pressing “ or (TIMER)”
button.
100%
(Original)
Press the SET button.
50% 0%
(Turned off)
– 25 –
Page 27
SELF CLEAN operation
■ 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.
Select the SELF CLEAN operation by pressing the
1
MENU switch.
Select CLEAN on by pressing “ or (TIMER)” button.
2
(CLEAN off) (CLEAN on)
3
• Two hours later, the air-conditioner stops CLEAN operation automatically.
• CLEAN operation is not operated after HEAT, FAN, OFF TIMER, SLEEP
• The indoor unit fan runs for about two hours in CLEAN operation.
• The RUN light illuminates during CLEAN operation.
• Pressing the SLEEP button, ALLERGEN CLEAR button or NIGHT
• This is not a function for removing mold, germs or grime that have
PRESET operation
This operation can save the preferred setting for future operation.
■
1
Press the SET button.
NOTE
To stop the air-conditioner immediately, press the ON/OFF button.
and ALLERGEN CLEAR operations have finished.
3 seconds
ON
OFF
1 second
SETBACK button during CLEAN operation cancels the CLEAN operation
and then the unit is set to SLEEP, ALLERGEN CLEAR or NIGHT
SETBACK operation.
already adhered to the unit.
Select the PRESET operation by pressing the MENU
switch.
Select preferred OPERATION MODE, TEMPERATURE,
2
FAN SPEED and AIR FLOW direction.
Press the SET button.
3
When air -conditioner is operating AUTO, COOL, HEAT,
4
• When pressing MODE button for PRESET operation during the 3D AUTO
• When pressing MODE button for PRESET operation during the
DRY, FAN and NIGHT SETBACK, press MODE button 3
seconds or more. PRESET operation will start.
NOTE
or HIGH POWER operation, it will be canceled.
ECONOMY operation, it will continue.
– 26 –
Page 28
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:
1 Timer settings
2 HIGH POWER operations
NOTE
• Auto 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.
• When power failure occurs, the timer setting is canceled. Once power is resumed, set the timer again.
Tips for effective operation
■ Please observe the following for the most economic and comfortable use of your unit.
Set a suitable room temperature.
Excessively high or low temperatures
are not good for your health and waste
of electricity.
Clean the filters frequently.
Clogged filters may block the airflow and
cause less efficient operation.
Avoid direct sunlight and draught.
Cut out direct sunlight by drawing the
curtains or blinds when cooling. Keep
windows and doors shut, except when
ventilating.
Adjust the airflow direction properly.
Adjust the up/down and left/right airflow
to ensure a steady room temperature.
Operate the unit only when needed.
Use the timer properly to operate the unit
only when needed.
Keep heat source away when cooling.
Keep heat sources out of the room as
much as possible.
– 27 –
Page 29
Maintenance
Before maintenance During the operational season
Turn off the power source.
• Do not spill any liquid to the
unit.
• Do not touch the aluminum fins
on the heat exchanger.
• Stand firmly on a stepladder
or other stable object when
removing the inlet panel and
filter.
Do not use the following items:
• Hot water (40°C or more)
It may deform or discolour the unit.
• Petrol, paint thinner, benzine or
cleanser, etc. I t may deform or
scratch the unit.
Cleaning the air filter
Remove the air filter
1
Cleaning
2
• Do not clean the filters with boiling water.
• Do not dry them over an open flame.
• Pull them out gently.
Reinstall the air filter
3
• Hold firmly the filter at both sides as shown at right and
insert securely.
• Operating without the air filters will make the unit dusty,
and may cause damage.
Cleaning the unit
• Wipe the unit with a soft, dry cloth, or use a vacuum cleaner.
• If the unit is very dirty, wipe it with a cloth soaked in warm water.
Cleaning the air inlet panel
• The panel can be washed with water. After washing with
water, wipe any moisture off the panel and dry out of
direct sunlight.
If the filter is very dirty, clean it with warm water
(approx. 30°C), and dry it thoroughly.
CAUTION
Standard interval is once
every two week
• Pull up the air inlet panel forward.
•
Lightly hold the knobs both sides and lift a little
to remove the panel forward.
How to open and close the air inlet panel
Open
Place fingers at the corners on both sides of the panel and pull
up the panel forward so that it will be open by about 70 degrees.
How to remove and install the air inlet panel
Removing
When removing the air inlet panel for internal cleaning or others,
open the panel by 90 degrees and then pull it forward.
Close
Push both corners of the panel evenly and press further lightly
at the center.
Installing
Insert the panel arm into the slot on the front panel from the
position shown below, hold the panel at both ends of lower part,
lower it downward slowly, then push it slightly until the latch
works.
Panel arm
– 28 –
Page 30
NOTE
Cooling/heating is affected by an air filter clogged up with dust etc., and the operation noise becomes louder. It
may also use extra electricity. Please clean the air filter at appropriate intervals.
At the end of the season At the beginning of the season
Perform the fan operation for 2 to 3 hours.
1
Dry the inside of the unit.
Stop the unit and turn off the power source.
2
The unit consumes approx. 4W even when the unit is not operating.
Turning off the power source will help saving energy consumption and cost.
Clean and reinstall the air filters.
3
Clean both the indoor and outdoor units.
4
Remove batteries from the remote control.
5
Ensure that the earth wiring is not snapped nor
1
disconnected.
Make sure that there is no corrosion or rust on
2
the base frame of the outdoor unit.
Make sure that there are no obstacles blocking
3
the airflow around the air intake and outlet
openings of the indoor and outdoor units.
Turn on the power source.
4
Insert batteries in the remote control.
5
Installing, inspecting and replacing the air-cleaning filter
1. Open the air inlet panel and remove the air filters. Page 28
2. Remove the filter holders, with the air-cleaning filter installed in the holders, from the
air-conditioner.
3. Remove the allergen clear filter (Light orange) from filter holder and inspect the
filter. Use a vacuum cleaner to remove any dust or dirt from the allergen clear filter.
Replace the allergen clear filter if it cannot be cleaned or if it has been for about
1 year.
(The allergen clear filter should be replaced after about 1 year of used. However, the
actual replacement period may vary depending on the conditions in which the filter
is used.)
Remove the photocatalytic washable deodorizing filter (orange) from the filter holder
and inspect the filter. Periodically, remove any dust or dirt from the photocatalytic
washable deodorizing filter. If the photocatalytic washable deodorizing filter is
particularly dirty, it may be washed with water. However, the filter is fragile so be sure
to wash it installed in the filter holder to avoid damaging it. After washing the filter,
place it in sunlight to dry. Placing the filter in sunlight restores the deodorizing effect.
(Do not dispose of the filter holders. They are reusable. )
4. Install the air-cleaning filter in the filter holders, and then install the filter
holders in the air-conditioner.
Filter holder
Filter
NOTE
• The allergen clear filter and the photocatalytic washable deodorizing filter
may be installed on either the right or left side of the air-conditioner.
• Install the allergen clear filter with the light orange side on front side.
5. Install the air filters and close the air inlet panel.
CAUTION
• The heat exchanger may injure your fingers.
• Stand firmly on a stepladder or other stable object when removing the inlet panel and filters.
For replacing the air-cleaning filter, contact your dealer.
Item Feature Color
Allergen clear filter
Photocatalytic washable
deodorizing filter
The power of enzyme is used to eliminate allergycausing allergens that accumulate on the filter.
Sources of odors on the filter are broken up, resulting in
a deodorizing effect.
Page 28
Light orange
Orange
– 29 –
Page 31
Proper installation
Suitable installation position
• Do not put any obstruction in front of the indoor unit, preventing proper ventilation and functioning.
• Do not install the unit in any of the following places:
− Where there is a danger of leaking flammable gases.
− Where there is substantial splashing of oil.
• Malfunctioning due to corrosion may occur if the unit is installed in a spa where sulfide gases are generated, or in a seaside resort
exposed to sea breezes. Contact your dealer.
• The air-conditioner and remote control must be at least 1 meter away from a TV set or radio.
• Drain the dehumidified liquid from the indoor unit into a spot that drains well.
Pay attention to operating noises
• When you install the unit, take care to choose a place that can comfortably stand the weight of the unit and does not increase the
operating noise or vibration. If vibration is transmitted through the house, fix the unit with the aid of vibration-proof pads between the
unit and the fittings.
• Select a place where cold or hot air, operation noises from the indoor and outdoor units do not cause any inconvenience to your
neighbours.
• Do not leave any obstacles near the outlet and inlet of the outdoor unit. This may cause malfunctioning and increased operating noise.
• If you hear an irregular noise during operation, contact your dealer.
Inspection and maintenance
Depending on operating environment, the inside of the air-conditioner may become dirty after a few year operations. This will reduce
performance. In addition to normal cleaning, we would recommend inspection and maintenance. (This may lead the air-conditioner to
having a longer life without any trouble.)
• Contact your dealer, or any distributor, for inspection and maintenance. (There will be a charge for this service).
• We would recommend inspection and maintenance to be carried out during the off-season.
• If the supply cord of this appliance is damaged, it must only be replaced by a repair shop appointed by the manufacturer, because
special purpose tools are required.
Troubleshooting
Please carry out the following checks before making a service call.
The air-conditioner does not work at all.
Has the power switch been
turned off?
Have you set the thermostat
at a suitable temperature?
Is there any direct sunlight
entering the room?
Has the timer been set in the
“ON” position?
Poor cooling or heating
Is the air filter clean? (Not
clogged?)
Poor cooling
Is there a heat source in the
room?
Is there a power failure or a
blown fuse?
Have you left any doors or
windows open?
Are there too many people in
the room?
If the air-conditioner does not
operate properly after you have
checked the left points, or if any
doubt still exists after you have
consulted page 31, or if things
happen as shown on page 32,
switch off the power and contact
your dealer.
– 30 –
Page 32
Notice
Airflow
Air is not blown out when starting the HEATING operation.
RUN light blinks slowly
(1.5 seconds ON, 0.5 seconds OFF)
Air is not blown out for 5 to 15 minutes or cool air is
blown out for a moment at HEATING operation.
RUN light blinks slowly
(1.5 seconds ON, 0.5 seconds OFF)
Air is not blown out when starting the DRY operation.
(RUN light is on)
Noise
You hear a slight gurgling sound.
You hear a slight cracking sound.
You hear a hissing or clicking sound.
Whistling noise is heard from the outdoor unit.
Sometimes a “Shooooo” sound might come for a short
time from the unit that is turned off.
Others
Airflow has stopped to prevent blowing out of cold air until the
indoor heat exchanger has warmed up. (2 to 5 minutes)
When outdoor temperature is low and humidity is high, the
unit sometimes performs defrosting automatically. Please
wait. During defrosting, water or steam may release from the
outdoor unit.
The indoor fan may stop to prevent re-evaporation of
dehumidified moisture and to save energy.
This is caused by refrigerant moving within the unit.
This is caused by heat expansion or contraction.
This is caused by the operation of the refrigerant control
valves or electric components.
This means that the rotation speed of the compressor is
increasing or decreasing.
This is the sound when operation of another indoor unit is
stopped.
The unit does not restart immediately after you have
stopped it.
(RUN light is on)
Some steam releases during COOL operation.
There is a slight smell.
After a power cut, the unit does not restart even if power
has been restored.
Remote control signals are not received.
Moisture may form on the air outlet grills.
Fan will not stop immediately after unit operation is
stopped.
RUN light stays on even though operation was stopped.
Restart is blocked for 3 minutes after you have stopped the
operation to protect the unit.
The 3 minutes protection timer in the microcomputer
automatically starts it up again.
This may occur if the room’s temperature and humidity are
very high. It disappears as soon as the temperature and
humidity decrease.
Air blown out during operation may smell. This is caused by
tobacco or cosmetics adhering to the unit.
If the auto restart function is not set, the unit will not restart
automatically. Use the remote control to start the operation
again.
Remote control signals may not be received if the signal
receiver on the air-conditioner is exposed to direct sunlight or
other bright light.
If so, block the sunlight or reduce the other light.
If the unit is operated for a long time in high humidity, moisture
may form on the air outlet grills and start dripping.
Indoor fan : Fan will not stop after 2 hours if set to CLEAN
operation.
Outdoor fan : Fan will not stop about a 1 minute period in
order to protect the unit.
The RUN light illuminates during CLEAN operation.
Run light will turn off when CLEAN operation ends.
– 31 –
Page 33
Contact your dealer
■ Turn off the power switch immediately and inform your dealer in any of the following situations:
The fuse or switch blows continuously.
The TV, radio or other equipment starts
to malfunction.
When abnormalities occur, turn off the power source
immediately and turn it on after 3 minutes. Restart the
operation with ON/OFF button of the remote control and the
abnormalities still continue.
The cable becomes extremely hot.
The covering of the cable is cracked.
A switch does not activate properly. A strange noise is heard during
operation.
The RUN and TIMER lights on the unit display section blink
quickly (0.5 seconds ON; 0.5 seconds OFF) or the lights do
not work.
About the multiple air-conditioners
Simultaneous Operation
• The air-conditioners cannot be in different operating modes at the same time, such as one unit being in the “Cool” mode and one
unit being in the “Heat” mode.
• When conducting different operations, the air-conditioner that was operated first will be given priority, so the air-conditioner that is
operated after that will conduct air blowing operation.
• When you want to give priority to the air-conditioner that was started later, either stop the air-conditioner that has priority or change
the operation type of the unit operated first to match that of the unit operated second.
• When other indoor units are operating in different modes, the RUN light illuminates.
0.5 seconds
ON
OFF
0.5 seconds
Automatic Operation
• When the remote control operation switch is in the AUTO mode, the air-conditioner automatically selects either COOL, DRY, or HEAT
mode when operation is started depending on the room temperature.
• During simultaneous operation of air-conditioners, operation modes may be automatically changed in response to the temperatures
of the individual rooms; this will result in the operation of the outdoor unit being stopped. In such a case, COOL or HEAT mode should
be used instead of AUTO mode. (This is only relevant when more than one air-conditioner unit is being used.)
Refrigerant (oil) recovery operation
• If the all of the indoor units are not operated at the same time for an extended period, the cooling or heating performance may
temporarily decrease. This is in order to control the recovery of the refrigerant (oil) in the stopped indoor unit(s). At this time, the
sound of refrigerant flowing may be heard from the stopped indoor unit(s).
– 32 –
Page 34
Self diagnosis function
■ We are constantly trying to do better service to our customers by installing such judges that show abnormality of each function as follows
TIMER light ON
RUN light keeps flashing
RUN light
1-time flash
2-time flash
3-time flash
5-time flash
6-time flash
7-time flash
TIMER light
1-time flash
2-time flash
4-time flash
5-time flash
Description of trouble Cause
Indoor heat exchanger sensor 1
error
Room temperature sensor error
Indoor heat exchanger sensor 3
error
Circuit error
Indoor fan motor error
Refrigerant is insufficient
Closed service valve
Outdoor temperature sensor error
Outdoor heat exchanger sensor
error
Discharge pipe sensor error
Suction pipe sensor error
• Broken heat exchanger sensor 1 wire, poor connector
connection
• Broken room temperature sensor wire, poor connector
connection
• Broken heat exchanger sensor 3 wire, poor connector
connection
• Circuit failure or poor connector connection
• Defective fan motor, poor connector connection
• Refrigerant is insufficient, leaking
• Closed service valve
• Broken outdoor sensor wire, poor connector connection
• Broken heat exchanger sensor wire, poor connector
connection
Broken discharge pipe sensor wire, poor connector connection
•
• Broken suction pipe sensor wire, poor connector connection
RUN light ON
RUN light 2-time flash
RUN light 7-time flash
1-time flash
2-time flash
3-time flash
4-time flash
5-time flash
6-time flash
7-time flash
Keep flashing
2-time flash
1-time flash
Current cut
Trouble of outdoor unit
Over current
Power transistor error
Over heat of compressor
Error of signal transmission
Outdoor fan motor error
Cooling high pressure protection
Rotor lock
Closed service valve
• Compressor locking, open phase on compressor
output, short circuit on power transistor, closed service
valve
• Broken compressor wire
• Compressor blockage
• Overload operation, overcharge of refrigerant
• Broken power transistor
• Gas shortage, defective discharge pipe sensor,
closed service valve
• Defective power source, broken signal wire, defective
indoor/outdoor unit boards
• Defective fan motor, poor connector connection
• Overcharge of refrigerant, short circuit of outdoor unit
• Defective compressor
• Open phase on compressor
• Defective outdoor unit boards
• Closed service valve
– 33 –
Page 35
– 34 –
Page 36
MITSUBISHI HEAVY INDUSTRIES THERMAL SYSTEMS, LTD.
16-5 Konan 2-chome, Minato-ku, Tokyo, 108-8215, Japan
http://www.mhi.co.jp/aircon/
MITSUBISHI HEAVY INDUSTRIES AIR-CONDITIONING EUROPE, LTD.
7 Roundwood Avenue, Stockley Park, Uxbridge, Middlesex, UB11 1AX, United Kingdom
Tel : +44-20-7025-2750
Fax: +44-20-7025-2751
http://www.mhiae.com
MITSUBISHI HEAVY INDUSTRIES AIR-CONDITIONERS AUSTRALIA, PTY. LTD.
9C Commercial Road Kingsgrove NSW 2208 PO BOX 318 Kingsgrove NSW 1480
Tel : +61-2-8571-7977
Fax: +61-2-8571-7992
http://www.mhiaa.com.au
Loading...