ORIGINAL INSTRUCTIONS
USER’S MANUAL
AIR-CONDITIONER
USER’S MANUAL
ENGLISH
AIR-CONDITIONER
MANUAL DEL PROPIETARIO
ESPAÑOL
ACONDICIONADOR DE AIRE
MANUAL DO UTILIZADOR
PORTUGUÊS
APARELHO DE AR CONDICIONADO
LMK09Z6-S
LMK12Z6-S
LMK15Z6-S
KULLANIM KILAVUZU
TÜRKÇE
MITSUBISHI HEAVY INDUSTRIES THERMAL SYSTEMS, LTD.
16-5 Konan 2-chome, Minato-ku, Tokyo, 108-8215, Japan
http://www.mhi-mth.co.jp/en/
MITSUBISHI HEAVY INDUSTRIES AIR-CONDITIONING EUROPE, LTD.
5 The Square, Stockley Park, Uxbridge, Middlesex, UB11 1ET, United Kingdom
Tel : +44-333-207-4072
Fax: +44-333-207-4089
http://www.mhiae.com/
MITSUBISHI HEAVY INDUSTRIES AIR-CONDITIONERS AUSTRALIA, PTY. LTD.
9C Commercial Road Kingsgrove NSW 2208
Tel : +61-2-8571-7977
Fax: +61-2-8571-7992
https://www.mhiaa.com.au/
PO BOX 318 Kingsgrove NSW 1480
RLC012A102A
201801
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EU DECLARATION OF CONFORMITY
MITSUBISHI HEAVY INDUSTRIES THERMAL SYSTEMS, LTD.
16-5 Konan 2-chome, Minato-ku, Tokyo, 108-8215, Japan
declare under our sole responsibility that the apparatus referred to in this declaration
conforms with the following directives.
Description of apparatus: Split Type Air Conditioner
Model name:
Conformity model list
[Indoor Unit]
[Outdoor Unit]
Category
Model
Category
Model
LMK Series
LMK09Z6-S
LMC Series
LMC09Z6-S
LMK12Z6-S
LMC12Z6-S
LMK15Z6-S
LMC15Z6-S
Relevant EU Directives :
Machinery 2006/42/EC
Applied Standards / Regulations :
EN 378-2
EN 60335-1
EN 60335-2-40
Authorised Representative in the EU :
MITSUBISHI HEAVY INDUSTRIES AIR-CONDITIONING EUROPE, LTD.
5 The Square, Stockley Park, Uxbridge, Middlesex, UB11 1ET, United Kingdom
RLC012A102_Cover.indd 2
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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 Product contains fluorinated greenhouse gases.
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.
ENGLISH
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.
The emission sound pressure level from each Indoor and Outdoor unit is under 70 dB(A).
contents
Safety precautions ..........................................2
Airflow direction adjustment..........................12
Tips for effective operation .............................5
SLEEP TIMER operation ..............................13
Name of each part and its function .................6
OFF TIMER operation ..................................13
Remote control ...............................................8
ON TIMER operation ....................................14
Operation failure with the remote control........8
SLEEP TIMER + ON TIMER operation ........14
Temporary run operation ................................8
PROGRAM TIMER operation .......................15
Operation and display section for
HIGH POWER/ECONOMY operation ..........16
remote control.................................................9
SELF CLEAN operation................................17
Current time setting ........................................9
Auto restart function .....................................17
AUTO mode operation..................................10
Maintenance .................................................18
FAN SPEED .................................................10
Proper installation .........................................20
COOL/HEAT/DRY/FAN mode operation ...... 11
Troubleshooting ...........................................20
Air-conditioner operation temperature
Contact your dealer ......................................20
range ............................................................ 11
Notice ...........................................................21
Characteristics of HEAT mode operation ..... 11
Self diagnosis function..................................22
EN-1
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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
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.
• Symbols which appear frequently in the text have the following meaning:
Strictly prohibited
Observe instructions
with great care
Provide proper
earthing
❚ INSTALLATION PRECAUTIONS
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.
CAUTION
• 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 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.
• 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.
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❚ Safety precautions
❚ OPERATION PRECAUTIONS
WARNING
• Children shall not play with the
• Cleaning and user maintenance shall
air-conditioner.
not be made by children without
• Do not expose yourself to the cooling supervision.
air for a long period.
• Do not insert anything into the air
outlet.
This could affect your physical condition
and cause health problems.
This may cause injury, as the internal fan
rotates at high speed.
• 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.
• Store the remote control out of reach of children.
Failure to observe this may result in the batteries being swallowed or other accidents.
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 step/sit on the 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.
EN-3
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❚ Safety precautions
CAUTION
• Do not touch the aluminum fins on the • Do not shut off the power source
heat exchanger.
immediately after stopping the
operation.
It may result in injury.
• Do not place household electrical
Wait at least 5 minutes, otherwise there is
appliances or household items under- a risk of water leakage or breakdown.
• Do not control the system with main
neath the indoor or outdoor units.
power switch.
Condensation falling from the unit may
It can cause fire or water leakage. In
stain objects and cause accidents or
addition, the fan can start unexpectedly,
electrical shock.
• Do not operate the system without the which can cause personal injury.
• Do not pour liquid into the unit and do
air filter.
not put water container on the unit.
It can cause malfunction of the system
Water entering the unit could damage the
due to clogging of the heat exchanger.
insulation and therefore cause an electric
shock.
• 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.
• 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.
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❚ 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.
• If the air-conditioner fails to cool
or warm the room, it may have a
Wrong repairs could cause an electric
refrigerant leakage. Contact your
shock, fire, etc.
• In case the air-conditioner is relocated dealer.
If refrigerant needs to be added,
elsewhere, contact your dealer or a
check with your dealer for proper
qualified installer.
instructions.
Faulty installation may cause water
If the refrigerant comes in contact with the
leakage, electric shock, fire, etc.
• If you notice anything abnormal (smell bare skin, it may cause cold injury.
of burning, etc.), stop the system, turn If the refrigerant gas is inhaled
off the power source and consult your excessively, it may cause deterioration
of nerve function like dizziness and
dealer.
headache, or deterioration of heart
Continued use of the system in
function like irregular heartbeat and heart
abnormal circumstances can result in
palpitation temporarily. If refrigerant
malfunctioning, electric shock, fire, etc.
unexpectedly leaks from the unit onto
a fan heater, stove, hotplate or other
heat source, harmful gases could be
generated.
Tips for effective operation
■ Please observe the following for the most economic and comfortable use of your unit.
• 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.
Page 18
• 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.
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Name of each part and its function
INDOOR UNIT
Air-cleaning filter
Air inlet panel
• Allergen clear filter
(Light orange)
Air inlet
Page 18
Air filters
Page 18
Filter holder
Fan
• Inside of
the unit
• Photocatalytic washable
deodorizing filter (Orange)
Air outlet
Heat exchanger
(Aluminum fin)
• Inside of the unit
Room
temperature
sensor
Filter holder
Unit display
section
Louvers
(Vertical blades)
• Left / right airflow
direction adjustment
Page 7
Flaps
(Horizontal blades)
• Up / down airflow
direction adjustment
Model name
OUTDOOR UNIT
WARNING
Air inlet
(back and side)
MOVING FAN BLADES
DO NOT INSERT ANYTHING
INTO THE AIR OUTLET.
IT MIGHT CAUSE INJURY.
CAUTION
SHARP EDGE OF FINS
DO NOT TOUCH THE
ALUMINUM FINS.
IT MIGHT CAUSE INJURY.
DO NOT STEP ON TOP OF THIS UNIT.
IT MIGHT CAUSE INJURY.
Model name
Refrigerant pipe
and electric wire
Fan
• Inside of the unit
Drain hose
Don't touch
the terminal
block.
Don't touch
refrigerant
pipings and
connections.
Heat exchanger
(Aluminum fin)
Drain hole
Air outlet
* The appearance varies by models
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Name of each part and its function
Unit display section
RUN light (blue)
Unit ON/OFF button
This button can be used for turning on/off
the unit when a remote control is not available.
Page 8
• Illuminates during operation.
• Blinks slowly when SELF CLEAN operation
(3 seconds ON, 1 second OFF).
Remote control signal receiver
Page 17
• Blinks when airflow is stopped to
prevent blowing out of cold air in
heating operation. (1.5 seconds ON,
0.5 seconds OFF)
Page 21
TIMER light (yellow)
Illuminates during TIMER operation.
Page 13-15
Accessories
Allergen clear filter
(Light orange)
Battery ×2
(R03 (AAA, Micro))
Remote control
Remote control
holder
Filter holder ×2
Photocatalytic washable
deodorizing filter (Orange)
Wood screw ×2
(for remote control holder mounting)
NOTE
•
Buzzer 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.
Buzzer sound (Pip) is produced when
air-conditioner is turned off by pressing ON/OFF button (except SELF CLEAN mode).
Airflow setting
Pip
Pip
Pip Pip
Preset temperature
Pip
Pip
Pip
Pip Pip
Pip
Pip
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Remote control
Setting the batteries
NOTE
1
2
Pull out the cover.
Insert new batteries.
R03 (AAA, Micro) x2
Pay attention
to the and
marks
• 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
3
4
Close the cover.
Press the ACL switch with
the tip of a ballpoint pen.
• Set the current time.
Page 9 Step 2
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 leave the remote control
exposed to direct sunlight or other
strong lighting.
• Do not drop the remote control.
Handle with care.
• Do not put any obstructing
obstacles between the remote
control and the unit.
• Do not spill any liquid on the
remote control.
• 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.
“Temporary run operation” below.
Contact your dealer to have the remote
control checked.
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 :
FAN SPEED
:
AIR FLOW
:
AUTO
AUTO
AUTO
• Operation starts by pressing the unit ON/OFF button; it stops if you press
the button again.
Unit ON/OFF button
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.)
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Operation and display section for remote control
FAN SPEED button
OPERATION MODE select button
Each time the button is pressed, the fan
speed changes.
Page 10
Each time the button is pressed, the
mode changes.
Page 10,11
HI POWER/ECONO button
ON/OFF (luminous) button
This button changes the HIGH POWER/
ECONOMY mode.
Page 16
Press to start operation, press again to
stop.
AIR FLOW (UP/DOWN) button
This button changes the airflow (up/
down) direction.
Page 12
ON TIMER button
This button selects ON TIMER operation.
Page 14
TEMPERATURE button
These buttons set the room temperature.
(These buttons are used for setting the
current time and timer function as well.)
SLEEP button
This button selects SLEEP operation.
Page 13
OFF TIMER button
This button selects OFF TIMER
operation.
Page 13
CLEAN switch
This switch selects the SELF CLEAN
mode.
Page 17
ACL switch
This switch resets the program to default
state.
Page 8
CANCEL button
This button cancels the ON timer, OFF
timer, and SLEEP operation.
• The above illustration shows all controls, but in
practice only the relevant parts are shown.
Transmission procedure
Display in OFF status
When each button on the remote control is
pressed – with the remote control pointing
towards the air-conditioner unit, a signal is
transmitted.
When the air-conditioner receives the signal
correctly, it will beep.
The current time and present
OPERATING MODE are displayed
while the air-conditioner is turned off.
Current time setting
■ When inserting the batteries, the current time is automatically set to time setting mode.
13:00 is displayed as the current time. Set the clock to the right time.
Example: Set to 10:30.
1
Press the ACL switch.
2
Press the
3
Press the ON/OFF button.
Press with the tip of a ballpoint pen, etc.
The time display blinks and can be set to the current time.
or
button.
(Set to 10:30)
The display changes from blinking to steady lighting and the setting is complete.
Make sure to press the button within 60 seconds from the last operation in
step 2, otherwise the time is not set.
NOTE
• The timer operation works based on the time clock, so please set it correctly.
• The remote control data is reset when the present time is set.
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AUTO mode operation
■ Automatically selects the operation mode (COOL, HEAT, DRY) depending on the room temperature when switched on.
1
Press the MODE button.
The mode changes whenever the button is pressed.
Set to .
2
3
Press the ON/OFF button.
or
Press the
button.
Default preset temperature during AUTO mode is 24°C for both cooling and
heating mode. However, it can be adjusted (Minimum 18°C, Maximum 30°C)
button or
button.
using
When it is a little cold
Press the
button.
■ Each time the
button is pressed, the switch over occurs in the following order
–6 → –5 → ............ –1 → ±0 → +1 ............ +6.
• If you do not want the AUTO mode program,
change to COOL, HEAT or FAN instead of
AUTO.
Page 11
• Airflow direction adjustment procedure.
Page 12
When +6 is indicated, even if the
button is pressed, the indicator does not change.
When it is a little hot
button.
Press the
■ Each time the
button is pressed, the switch over occurs in the following order
+6 → +5 → ............ +1 → ±0 → –1 ............ –6.
When –6 is indicated, even if the
NOTE
• In case air is not blowing out during the
operation.
Setting
temp.(°C)
-6
18
-5
19
-4
20
-3
21
button is pressed, the indicator does not change.
Remote Control display
+0 +1
-2
-1
+2
22 23
24 25
26
+3
27
+4
28
+5
29
+6
30
Page 21
To stop:
Press the ON/OFF button.
FAN SPEED
■ The FAN SPEED can be set without DRY mode.
1
Press the FAN SPEED button.
Each time the button is pressed, the fan speed changes.
AUTO
HI
MED
LO
Operation capacity by your choice
FAN SPEED
Set automatically by microcomputer
AUTO
Powerful operation with high capacity
Standard operation
Energy-saving operation
HI
MED
LO
NOTE
• When FAN SPEED is changed from HI to LO, the sound of refrigerant
may be heard.
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COOL/HEAT/DRY/FAN mode operation
1
Press the MODE button.
Set to a required mode.
(COOL),
2
3
(HEAT),
(DRY), (FAN)
Press the ON/OFF button.
Press the TEMP button.
Press
or
button for the preferred temperature.
Recommendation
COOL
26 °C - 28 °C
Airflow direction adjustment procedure.
Page 12
4
HEAT
22 °C - 24 °C
DRY
24 °C - 26 °C
FAN
—
Press the FAN SPEED button
Set the fan speed as preferred.
A fan speed cannot be set under Dry operation.
NOTE
• In case air is not blown out, when starting the heating
operation.
Page 21
To stop:
Press the ON/OFF button.
• The operation mode can also be set or changed when the
air-conditioner is not in operation.
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 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
• 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.
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Airflow direction adjustment
■ Up/down direction can be adjusted with the AIR FLOW button on the remote control. Every time you press this button, the mode
changes as follows:
Change on AIR FLOW (UP/DOWN) mode.
(Flap 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 direction is fixed at the horizontal position in order to avoid cold draft. It returns to the set
position when the warm air supply is started.
• The flap direction will be controlled to the horizontal position when the room temperature reaches the set temperature and compressor
stops or when defrosting is in operation.
• 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 goes to the set position.
Memory flap (Flap stopped)
When you press the AIR FLOW button once while the flap is operating, it stops swinging at the position. Since this angle is
memorized in the microcomputer, the flap will automatically be set at this angle when the next operation is started.
WARNING
• Do not expose directly to airflow from the air-conditioner for a long time.
• Recommended angle of the flap when
stopping
HEAT
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 by hand, as the control angle may change or
the flap may not be closed completely.
COOL, DRY
(Slant forward
blowing)
(Horizontal
blowing)
Adjusting left/right air flow direction
■ Adjust the direction by moving the left/right louver by hand.
When you adjust the direction, touch the operation point of louver.
Operation point
Louver
Flap
CAUTION
• Please stop the air-conditioner when adjusting the air flow direction.
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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.
1
Page 15
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.
Changing of set time
• The unit stops after the set time lapses.
Set a new time by pressing SLEEP button.
How to cancel
Press the CANCEL button to turn off the SLEEP
display.
NOTE
• SLEEP TIMER cannot be set simultaneously with OFF TIMER.
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
Press the ON/OFF button.
Press the OFF TIMER button.
OFF TIMER display
is blinking.
Press the
button.
Every time the
0:00
0:10
Every time the
or
button is pressed, the display is switched in the order of:
0:20
...
1:00
1:10
(Units of ten minutes)
button is pressed, the display is switched in the order of:
0:00 23:50 23:40
... 23:00 22:50
(Units of ten minutes)
Set at 22:30.
4
Press the OFF TIMER button.
The display changes from blinking to steady lighting and the setting is
complete.
The timer light (yellow) is on.
NOTE
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.
• Different from SLEEP TIMER operation, automatic set temperature
adjustment is not done during OFF TIMER operation.
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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.
ON TIMER operation can be set regardless of whether the air-conditioner is running or not.
Page 15
Example: When the preferred room temperature is required at 8:00.
1
2
Press the ON TIMER button.
ON TIMER display
Press the
Every time the
0:00
0:10
Every time the
is blinking.
or
button.
button is pressed, the display is switched in the order of:
0:20
...
1:00
1:10
(Units of ten minutes)
button is pressed, the display is switched in the order of:
0:00 23:50 23:40
... 23:00 22:50
(Units of ten minutes)
Set at 8:00.
3
Press the ON TIMER button.
The display changes from blinking to steady lighting and the setting is
complete.
The timer light (yellow) is on.
If ON TIMER setting is performed when air-conditioner is running,
air-conditioner operation will stop.
NOTE
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.
• 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.
1
SLEEP TIMER setting
Set by the procedures on page 13.
Set to
2
ON TIMER operation setting
Set by the above procedure mentioned in ON TIMER.
Set to
The setting of the lighting of the timer light (yellow) of this unit is complete.
• 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.
Changing of set time
How to cancel
Set a new time by using the SLEEP or ON TIMER
button.
Press the CANCEL button to turn off the timer display.
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PROGRAM TIMER operation
■ The timer operations of the combination of ON and OFF TIMER. Once this has been set the timer operations will be repeated at the same
time every day unless the ON/OFF button is pressed.
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.
1
2
OFF TIMER operation setting
Set by the procedures on page 13.
Set to
ON TIMER operation setting
Set by the procedures on page 14.
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.
First the air-conditioner starts running with ON TIMER.
After the air-conditioner stops running with OFF TIMER.
• The air-conditioner running.
First the air-conditioner stops running with OFF TIMER.
After the air-conditioner starts running with ON TIMER.
Changing of set time
Set a new time by using the OFF TIMER or ON TIMER button.
How to cancel
Press the CANCEL or ON/OFF button to turn off the timer display.
Comfort Start-up
SLEEP TIMER
▼
▼
COOL operation
▼
▼
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.
▼
▼
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
In COOL operation
checked 60 minutes before
(Stop) Operation starts
the ON time. Depending on
the temperature at that time,
(Operation)
the operation starts 5 to 60
minutes before the timer is at Set temperature
ON.
• The function is available
for both COOL and HEAT
Check the room
Set time
operation mode (including
temp. 60 minutes
AUTO). It does not work for
before.
DRY mode.
HEAT operation
Set temperature
-1.0 °C
-2.0 °C
-3.0 °C
+1.0°C
Set temperature
-1.0°C
Set time
1 hour 2 hour
-6.0 °C
Set time
30 minutes 1 hour
2 hour
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HIGH POWER/ECONOMY operation
1
2
Press the ON/OFF button.
Press the HI POWER/ECONO button.
■ When the operating mode is AUTO, COOL or HEAT
Every time the HI POWER/ECONO button is pressed, the display is
switched in the order of:
No display
(HIGH POWER)
(ECONOMY)
(Normal operation)
■ When the operating mode is DRY or PROGRAM TIMER
Every time the HI POWER/ECONO button is pressed, the display is
switched in the order of:
No display
(ECONOMY)
(Normal operation)
Concerning HIGH POWER operation
Pressing the HI POWER/ECONO 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 POWER/ECONO button again to cancel
the HIGH POWER operation.
• HIGH POWER operation is not available during the DRY and
the program timer operations.
• When HIGH POWER operation is set after 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 POWER/ECONO 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 min. since HIGH POWER operation
has started.
• Not operable while the air-conditioner is OFF.
Concerning ECONOMY operation
Pressing the HI POWER/ECONO button initiates a soft operation with the power suppressed in order to avoid an excessive cooling or
heating. The unit operates 1.5°C higher than the setting temperature during cooling or 2.5°C lower than that during heating. The remote
control
displays and the FAN SPEED display disappears.
NOTE
• It will go into ECONOMY operation at the next time the
air-conditioner runs in the following case.
1 When the air-conditioner is stopped by ON/OFF button
during ECONOMY operation.
2 When the air-conditioner is stopped in SLEEP or OFF
TIMER operation during ECONOMY operation.
3 When the operation is retrieved from SELF CLEAN
operation.
• When the following operations are set, ECONOMY operation
will be canceled.
1 When the HI POWER/ECONO button is pressed
again.
2 When the operation mode is changed from DRY to
FAN.
• Not operable while the air-conditioner is OFF.
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SELF CLEAN operation
■ SELF CLEAN operation should be run after AUTO, COOL and DRY operation to remove the moisture from inside of the indoor unit and
control the growth of mold and bacteria.
1
In order to active SELF CLEAN operation, press the
CLEAN switch with the tip of a ballpoint pen.
Every time the CLEAN switch is pressed, the display is
switched in the order of:
No display
(SELF CLEAN off)
(SELF CLEAN on)
NOTE
• Two hours later, the air-conditioner stops SELF CLEAN operation
automatically. To stop the air-conditioner immediately, press the ON/OFF
button.
• SELF CLEAN operation is not operated after HEAT, FAN, OFF TIMER
and SLEEP operations have finished.
• The indoor unit fan runs for about two hours in SELF CLEAN operation.
• The RUN light illuminates during SELF CLEAN operation.
3 seconds
ON
OFF
1 second
• Pressing the SLEEP button during SELF CLEAN operation cancels the
SELF CLEAN operation and then the unit is set to SLEEP operation.
• This is not a function for removing mold, germs or grime that have
already adhered to the unit.
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.
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Maintenance
Before maintenance
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 m ay d e fo r m o r
scratch the unit.
During the operational season
Cleaning the air filter
Standard interval is once
every two week
1
Remove the air filter
2
Cleaning
• Pull up the air inlet panel forward.
• Lightly hold the knobs both sides and lift a little
to remove the panel forward.
If the filter is very dirty, clean it with warm water
(approx. 30°C), and dry it thoroughly.
CAUTION
• Do not clean the filters with boiling water.
• Do not dry them over an open flame.
• Pull them out gently.
3
Reinstall the air filter
• 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.
How to open and close the air inlet panel
Open
Close
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.
Push both corners of the panel evenly and press further lightly
at the center.
How to remove and install the air inlet panel
Removing
Installing
When removing the air inlet panel for internal cleaning or others,
open the panel by 90 degrees and then pull it forward.
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
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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.
NOTE
At the end of the season
1
At the beginning of the season
Perform the fan operation for 2 to 3 hours.
Dry the inside of the unit.
2
Stop the unit and turn off the power source.
3
4
5
Clean and reinstall the air filters.
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 both the indoor and outdoor units.
Remove batteries from the remote control.
1
2
3
Ensure that the earth wiring is not snapped nor
disconnected.
4
5
Turn on the power source.
Make sure that there is no corrosion or rust on
the base frame of the outdoor unit.
Make sure that there are no obstacles blocking
the airflow around the air intake and outlet
openings of the indoor and outdoor units.
Insert batteries in the remote control.
Installing, inspecting and replacing the air-cleaning filter
1. Open the air inlet panel and remove the air filters.
Page 18
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. )
During installation (back side)
Filter
Filter holder
After installation (front side)
4. Install the air-cleaning filter in the filter holders, and then install the filter
holders in the air-conditioner.
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.
Page 18
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
Allergen clear filter
Photocatalytic washable
deodorizing filter
Feature
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.
Color
Light orange
Orange
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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.
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 21, or if things
happen as shown below, switch
off the power and contact your
dealer.
The air-conditioner does not work at all.
• Has the power switch been turned off?
• Has the timer been set in the “ON” position?
• Is there a power failure or a blown fuse?
Poor cooling or heating
• Have you set the thermostat at a suitable temperature?
• Is the air filter clean? (Not clogged?)
• Have you left any doors or windows open?
• Is there any direct sunlight entering the room?
• Is there a heat source in the room?
• Are there too many people in the room?
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 cable becomes extremely hot.
The covering of the cable is cracked.
• The TV, radio or other equipment starts to malfunction.
• A switch does not activate properly.
• A strange noise is heard during operation.
• 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 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.
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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)
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.
Noise
You hear a slight gurgling sound.
This is caused by refrigerant moving within the unit.
You hear a slight cracking sound.
This is caused by heat expansion or contraction.
You hear a hissing or clicking sound.
This is caused by the operation of the refrigerant control
valves or electric components.
Whistling noise is heard from the outdoor unit.
This means that the rotation speed of the compressor is
increasing or decreasing.
Others
The unit does not restart immediately after you have
stopped it.
(RUN light is on)
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.
Some steam releases during COOL operation.
This may occur if the room’s temperature and humidity are
very high. It disappears as soon as the temperature and
humidity decrease.
Close all windows and doors to prevent outside humidity from
entering.
There is a slight smell.
Air blown out during operation may smell. This is caused by
tobacco or cosmetics adhering to the unit.
After a power cut, the unit does not restart even if power
has been restored.
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 are not received.
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.
Moisture may form on the air outlet grills.
If the unit is operated for a long time in high humidity, moisture
may form on the air outlet grills and start dripping.
Fan will not stop immediately after unit operation is
stopped.
Indoor fan
: Fan will not stop after 2 hours if set to SELF
CLEAN operation.
Outdoor fan : Fan will not stop about a 1 minute period in
order to protect the unit.
RUN light stays on even though operation was stopped.
The RUN light illuminates during SELF CLEAN operation.
Run light will turn off when SELF CLEAN operation ends.
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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
RUN light
Description of trouble
TIMER light ON
Cause
1-time flash
Indoor heat exchanger sensor 1
error
• Broken heat exchanger sensor 1 wire, poor connector
connection
2-time flash
Room temperature sensor error
• Broken room temperature sensor wire, poor connector
connection
5-time flash
Circuit error
• Circuit failure or poor connector connection
6-time flash
Indoor fan motor error
• Defective fan motor, poor connector connection
7-time flash
Refrigerant is insufficient
Closed service valve
• Refrigerant is insufficient, leaking
• Closed service valve
1-time flash
Outdoor temperature sensor error
• Broken outdoor sensor wire, poor connector connection
2-time flash
Outdoor heat exchanger sensor
error
• Broken heat exchanger sensor wire, poor connector
connection
4-time flash
Discharge pipe sensor error
• Broken discharge pipe sensor wire, poor connector connection
1-time flash
Current cut
• Compressor locking, open phase on compressor output,
short circuit on power transistor, closed service valve
2-time flash
Trouble of outdoor unit
• Broken compressor wire
• Compressor blockage
3-time flash
Over current
• Overload operation, overcharge of refrigerant
4-time flash
Power transistor error
• Broken power transistor
5-time flash
Over heat of compressor
• Gas shortage, defective discharge pipe sensor,
closed service valve
6-time flash
Error of signal transmission
• Defective power source, broken signal wire, defective
indoor/outdoor unit boards
7-time flash
Outdoor fan motor error
• Defective fan motor, poor connector connection
Cooling high pressure protection
• Overcharge of refrigerant, short circuit of outdoor unit
Rotor lock
• Defective compressor
• Open phase on compressor
• Defective outdoor unit boards
TIMER light
RUN light keeps flashing
RUN light ON
Keep flashing
RUN light 2-time flash
2-time flash
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EU DECLARATION OF CONFORMITY
MITSUBISHI HEAVY INDUSTRIES THERMAL SYSTEMS, LTD.
16-5 Konan 2-chome, Minato-ku, Tokyo, 108-8215, Japan
declare under our sole responsibility that the apparatus referred to in this declaration
conforms with the following directives.
Description of apparatus: Split Type Air Conditioner
Model name:
Conformity model list
[Indoor Unit]
[Outdoor Unit]
Category
Model
Category
Model
LMK Series
LMK09Z6-S
LMC Series
LMC09Z6-S
LMK12Z6-S
LMC12Z6-S
LMK15Z6-S
LMC15Z6-S
Relevant EU Directives :
Machinery 2006/42/EC
Applied Standards / Regulations :
EN 378-2
EN 60335-1
EN 60335-2-40
Authorised Representative in the EU :
MITSUBISHI HEAVY INDUSTRIES AIR-CONDITIONING EUROPE, LTD.
5 The Square, Stockley Park, Uxbridge, Middlesex, UB11 1ET, United Kingdom
RLC012A102_Cover.indd 2
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ORIGINAL INSTRUCTIONS
USER’S MANUAL
AIR-CONDITIONER
USER’S MANUAL
ENGLISH
AIR-CONDITIONER
MANUAL DEL PROPIETARIO
ESPAÑOL
ACONDICIONADOR DE AIRE
MANUAL DO UTILIZADOR
PORTUGUÊS
APARELHO DE AR CONDICIONADO
LMK09Z6-S
LMK12Z6-S
LMK15Z6-S
KULLANIM KILAVUZU
TÜRKÇE
MITSUBISHI HEAVY INDUSTRIES THERMAL SYSTEMS, LTD.
16-5 Konan 2-chome, Minato-ku, Tokyo, 108-8215, Japan
http://www.mhi-mth.co.jp/en/
MITSUBISHI HEAVY INDUSTRIES AIR-CONDITIONING EUROPE, LTD.
5 The Square, Stockley Park, Uxbridge, Middlesex, UB11 1ET, United Kingdom
Tel : +44-333-207-4072
Fax: +44-333-207-4089
http://www.mhiae.com/
MITSUBISHI HEAVY INDUSTRIES AIR-CONDITIONERS AUSTRALIA, PTY. LTD.
9C Commercial Road Kingsgrove NSW 2208
Tel : +61-2-8571-7977
Fax: +61-2-8571-7992
https://www.mhiaa.com.au/
PO BOX 318 Kingsgrove NSW 1480
RLC012A102A
201801
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