Thank you for purchasing a MITSUBISHI HEAVY INDUSTRIES, 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,
covered by the Kyoto Protocol with a Global Warming Potential (GWP) = 1975.
Your Air Conditioning product may be 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 conditioners
should be treated at an authorized treatment facility for re-use, recycling
and recovery and not be disposed of in the municipal waste stream. Please
contact the installer or local authority for more information.
This symbol printed in the batteries attached to your Air Conditioning
product is information for end-users according to the EU directive 2013/56/
EU 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).
Contact your dealer..................................... 30
About the Multiple Air-conditioner ............... 30
Self diagnosis function ................................ 31
–1–
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 instruction manual, please keep it without missing. If someone else
takes over as operator, make certain that the manual is also passed on to the new operator.
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
Improper handling could lead to drastic result like death, serious injury, etc.
Might pose a serious problem, depending on the circumstances.
Observe instructions
with great care
Provide proper earthing
WARNING
The system is for domestic, residential etc. use.
•
If used in severer environments, such as an engineering workplace, the equipment
may function poorly.
•
The system must be installed by your dealer or a qualified professional.
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.
•
Depending on the place of installation, an earth leakage breaker may be
necessary.
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 cables should never be connected to a gas pipe, water pipe, lightning conductor
or telephone earth cable. Incorrect installation of the earth cable may produce an electric shock.
–2–
•
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.
❚ Safety precautions
❚ OPERATION PRECAUTIONS
•
Children shall not play with the appliance.
•
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 persons
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 infants.
Failure to observe this may result in the batteries being swallowed or other accidents.
•
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 blower, nor
spray it directly on the system.
This may result in a fire.
•
You should not expose any combustion appliance directly to the air
stream of the air-conditioner.
The appliance may then work inadequately.
•
Do not wash the air-conditioner with
water.
This could cause an electric shock.
WARNING
•
Cleaning and user maintenance shall
not be made by children without supervision.
•
Do not insert anything into the air inlet.
This may cause injury, as the internal fan
rotates at high speed.
CAUTION
•
The system should only be used for
its original purpose and not for anything else like, for instance, 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 system 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 off it,
people could get hurt.
•
After a long period of use, check the
unit's support structure from time to
time.
If you do not repair any damage right
away, the unit may fall down and cause
personal injury.
–3–
❚ Safety precautions
•
Do not touch the aluminum fins on the
air heat exchanger.
It may result in injury.
•
Do not place household electrical
appliances or household items under
neath the indoor or outdoor units.
Condensation falling from the unit may
stain objects and cause accidents or
electrical shock.
•
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 the system 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 the system, stop the
unit and turn off the power supply.
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 supply 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 this unit and do
not put water container on this 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.
•
Do not let the foreign matters enter
the indoor unit through the air outlets.
This may cause the dumper inoperable.
•
If the power cord becomes damaged,
contact your dealer or a qualified engineer.
If it is not replaced, it may cause a
breakdown or fire.
–4–
❚ 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 professional fitter.
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 supply
and consult your dealer.
Continued use of the system in abnormal circumstances may 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–
Name of each part and its function
INDOOR UNIT
Air Inlet panel
Draws the indoor air.
Removes dust or dirt from the inlet air.
Air-cleaning filter
Room temperature sensor
Heat exchanger
Air outlet
Air blows out of here.
Indoor unit fan
Left/right airflow direction adjustment louver
Up/down airflow direction adjustment flap
Drain hose
Drains water from the indoor unit.
Refrigerant piping connection and electric wire
Page 26
Air filter
Page 26
Page 27
Page 14
Page 14
OUTDOOR UNIT
Air Inlet top panel
Page 26
Air inlet
(On side & rear surface)
Air outlet
Outdoor unit fan
Heat exchanger
–6–
Name of each part and its function
Unit display section
Unit ON/OFF button
This button can be used for turning on/off the unit when remote control is not available.
Remote control signal receiver
3D AUTO light (green)
Illuminates during 3D AUTO operation.
HI POWER light (green)
Illuminates during HIGH POWER operation.
Blinks during heating preparation.
1.5 sec.
ON
OFF
0.5 sec.
Accessories
Page 8
RUN (HOT KEEP) light (green/blue)
• Illuminates during operation.
green : except ECONO operation
blue : ECONO operation
Blinks when airflow stops due to the ‘HOT
•
KEEP’
, ‘CLEAN operation
mode invalid
HOT KEEP
CLEAN
operation
Page 24
Operation
mode
invalid
’.
ON
OFF
ON
OFF
ON
OFF
1.5 sec.
3 sec.
0.5 sec.
0.5 sec.
Page 30
’and ‘
0.5 sec.
1 sec.
operation
TIMER light (yellow)
Illuminates during TIMER operation.
Allergen clear filter
Wireless remote control
Wireless remote
control holder
(Light orange)
Photocatalytic washable
deodorizing filter (Orange)
(for remote control holder mounting)
Battery
(R03 (AAA, Micro) ×2)
Wood screw (Quantity:2)
CAUTION
• Do not touch the air inlet panel while it is operating.
The air inlet panel opens up while the system is operating.
Please do not install the unit in a fashion in which the air inlet
panel cannot open or place objects near the indoor unit.
NOTE
• Buzzer sound for remote control
When preset temperature 24°C, automatic operation and automatic airflow are selected, the buzzer sound (PiPi) is produced.
When turning off the air conditioner by pressing ON/OFF button (except CLEAN mode), the buzzer sound (Pi) is produced.
This function is useful for operating the air conditioner in the darkness.
Air flow setting
Preset temperature
–7–
Remote control handling
Replacing the batteries
The following cases signify exhausted batteries. Replace old batteries with new ones.
• Receiving beep is not emitted when a signal is transmitted.
• Display fades away.
NOTE
Pull out the cover and take
1
out old batteries.
Insert new batteries. R03
(AAA, Micro) x2
2
Pay attention to
the ª 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 manufacturering 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
Close the cover.
3
Press the ACL switch with
4
the tip of a ballpoint pen.
Page 11
The remote control can be attached to a wall or pillar
by using a remote control holder. Before installing the
remote control, check that the air-conditioner receives
the signals properly.
For installing or removing the remote control, move it
up or down in the holder.
Warning note for remote control handling
Strictly prohibited
• Do not go near high temperature
places, such as an electric carpet
or 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?
“Replacing the batteries” above.
Replace the batteries with new ones and retry
the operation.
• If the operation fails, operate the unit
with temporary 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 hold the Unit ON/OFF button down for more than 5 seconds.
(Holding it down longer than 5 seconds sets the automatic cooling used during servicing or when relocating the air-conditioner.)
–8–
Unit ON/OFF button
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 batter-
1
ies.
Disconnect the switching line next to
the battery with wire cutters.
2
Disconnect
Insert batteries.
3
Close the cover.
Setting an indoor unit
Turn off the power supply, and turn it on after 1 minute.
1
Point the remote control that was set according to the
procedure described on the left side at the indoor unit
2
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 "pip" is emitted
3
from the indoor unit.
At completion of the setting, the indoor unit emits a buzzer sound
"pip". (If no reception tone is emitted, start the setting from the beginning again.)
Reception
pip
Child Lock
■ This function locks the remote control operation to prevent an operation error.
Point the remote control toward the air-conditioner, and
1
Releasing procedure
Turn off the light by pressing the SET button for 3 seconds or longer.
Press the SET button for 3 seconds or longer.
is displayed. While Child Lock is set, only the ON/OFF button can be
operated.
NOTE
• While Child Lock is set, the settings of temperature, fan speed and airflow
direction cannot be changed. To change the settings, reset Child Lock.
• Child lock will not function during ALLERGEN CLEAR operation.
–9–
Operation and display section for remote control
Operation section
OPERATION MODE select button
Each time the button is pressed, the
mode changes.
TEMPERATURE button
This button sets the room temperature.
HI/ECO button
This button changes the HIGH POWER/
ECONOMY operation.
AIR FLOW (LEFT/RIGHT) button
This button changes the air flow (left/
right) direction.
SILENT button
This buttion changes the SILENT
operation.
ALLERGEN CLEAR button
This button selects ALLERGEN CLEAR
operation.
ON TIMER button
This button selects ON TIMER operation.
Page 11,13
Page 22
Page 14
Page 23
Page 17
Page 16
Transmission section
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 12
AIR FLOW (UP/DOWN) button
This button changes the air flow (up/
down) direction.
Page 14
3D AUTO button
This button sets 3D AUTO operation.
Page 14
NIGHT SETBACK button
This button sets NIGHT SETBACK
operation.
Page 23
SET/Child Lock button
Use this button to set the timer and
Child Lock.
Page 9
CANCEL button
This button cancels the ON timer, OFF
timer, and SLEEP operation.
OFF TIMER button
This button selects OFF TIMER
operation.
Page 15
WEEKLY button
This button switches the WEEKLY
TIMER to ON/OFF.
Page 18
CLEAN switch
This switch selects the CLEAN
operation.
Page 24
SLEEP button
This button selects SLEEP operation.
Page 15
• The above illustration shows all controls, but in
practice only the relevant parts are shown.
This buttions is used for setting the current time and timer function.
This button sets WEEKLY TIMER.
Switch for resetting microcomputer.
This switch is for setting the time.
TIMER button
PROGRAM button
ACL switch
TIME SET UP switch
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.
–10–
Page 18
Page 8
Page 11
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