USER’S MANUAL
ORIGINAL INSTRUCTIONS
DXK09Z5L-S
DXK12Z5L-S
DXK15Z5L-S
AIR-CONDITIONER
MANUAL DEL PROPIETARIO
ACONDICIONADOR DE AIRE
MANUAL DO UTILIZADOR
APARELHO DE AR CONDICIONADO
KULLANIM KILAVUZU
ENGLISH
ESPAN˜OL
PORTUGUÊS
TÜRKÇE
This air conditioner complies with EMC Directive 2004/108/EC,
LV Directive 2006/95/EC.
Este acondicionador de aire cumple con la directiva EMC: 2004/
108/EC, LV Directiva 2006/95/EC.
Este aparelho de ar condicionado está em conformidade com a
Directiva EMC 2004/108/EC e a Directiva LV 2006/95/EC.
RLC012A007A
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).
contents
Safety precautions ........................................ 2
Name of each part and its function ............... 6
Remote control handling ............................... 8
Operation failure with the remote control ...... 8
Temporary run operation .............................. 8
Operation and display section for remote
control ........................................................... 9
Current time setting....................................... 9
AUTO mode operation ................................ 10
Temperature adjustment during AUTO....... 10
FAN SPEED ................................................ 10
COOL/HEAT/DRY/FAN mode operation .... 11
Air-conditioner operable
temperature setting ..................................... 11
Characteristics of HEAT mode operation ... 11
Airflow direction adjustment ........................ 12
SLEEP TIMER operation ............................ 13
OFF-TIMER operation ................................ 13
ON-TIMER operation .................................. 14
SLEEP TIMER + ON-TIMER operation ...... 14
PROGRAM TIMER operation ..................... 15
HIGH POWER/ECONOMY operation ......... 16
SELF CLEAN operation .............................. 17
Auto restart function .................................... 17
Tips for effective operation ......................... 17
Maintenance ............................................... 18
Proper installation ....................................... 20
Troubleshooting .......................................... 20
Notice .......................................................... 21
Contact your dealer..................................... 22
Self diagnosis function ................................ 23
–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
Remove dust or dirt from the inlet air.
Page 18
Indoor unit fan
Air-cleaning filter
Heat exchanger
Unit display section
Page 7
Room temperature sensor
Air blows out of here.
Left/right airflow direction adjustment louver
Page 12
Up/down airflow direction adjustment flap
Page 12
Drains water from the indoor unit.
<Top view>
Refrigerant piping connection and electric wire
Air filter
Front panel
Air outlet
Drain hose
OUTDOOR UNIT
Air-cleaning filter
Page 19
Air inlet
(On side & rear surface)
Air outlet
Outdoor unit fan
Heat exchanger
–6–
Name of each part and its function
g
Unit display section
Remote control signal receiver
Unit ON/OFF button
This button can be used for turning on/off the unit when remote control is not available.
RUN (HOT KEEP) light (blue)
• Illuminates during operation.
Blinks when airflow stops due to the ‘HOT KEEP’
•
Page 8
and ‘CLEAN operation
’.
HOT KEEP
Illuminates during TIMER operation.
Wireless remote control Wireless remote
control holder
Installing
1. Remove the air filter.
Natural enzyme filter
(Green)
Photocatalytic washable
deodorizin
filter (Orange)
2. Remove the filter holders, with the air-cleaning filter installed in the holders, from
the air filter.
3. Install the air-cleaning filter in the filter holders, and then install the filter holders
in the air filter.
4. Install the air filter.
1.5 sec.
ON
OFF
TIMER light (yellow)
0.5 sec.
Battery
(R03 (AAA, Micro) x2)
Page 18, 19
CLEAN operation
ON
OFF
Page 17
Wood screw (Quantity:2)
(for remote control holder mounting)
3 sec.
1 sec.
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.
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
■ When the display shows any abnormal condition, Press the ACL switch with
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 recommended 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.
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.
The timer setting mode is displayed.
Page 9
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
Operation and display section for remote control
Operation section
FAN SPEED button
Each time the button is pressed, the
display is switched over in turn.
HI POWER/ECONO button
This button changes the HIGH POWER/
ECONOMY mode.
TEMPERATURE button
These buttons set the room temperature.
(These buttons are used for setting the
current time and timer function as well.)
ON TIMER button
This button selects ON TIMER operation.
SLEEP button
This button selects SLEEP operation.
CLEAN switch
This switch selects the CLEAN mode.
CANCEL button
This button cancels the ON timer, OFF
timer, and SLEEP operation.
Page 10
Page 16
Page 14
Page 13
Page 17
Transmission procedure
The above illustration shows all controls, but in practice
•
only the relevant parts are shown.
OPERATION MODE select button
Each time the button pressed, the
display is switched over in turn.
ON/OFF (luminous) button
Press to start operation, press again to
stop.
AIR FLOW (UP/DOWN) button
This button changes the air flow
(up/down) direction.
OFF TIMER button
This button selects OFF TIMER operation.
ACL switch
This switch is for resetting microcomputer
and setting time.
Page 10, 11
Page 12
Page 13
Page 8
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.
Current time setting
■ When inserting the batteries, the current time is automatically set to time setting mode.
13:00 is displayed as the current time. Set the clock to the right time.
Example: Set to 10:30.
Press the ACL switch.
1
2
3
Press with the tip of a ballpoint pen, etc.
The time display blinks and can be set to the current time.
Press the or button.
(Set to 10:30)
Press the ON/OFF button.
The display changes from blinking to steady lighting and the setting is complete.
Make sure to press the button within 60 seconds from the last operation in
step 2, otherwise the time is not set.
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.
–9–
AUTO mode operation
■
Automatically selects the operation mode (COOL, HEAT, DRY) depending on the room temperature when switched on.
When the unit is not in AUTO mode:
Press MODE button.
Move the [ mark] to the (Auto) position.
Point the remote control toward the air-conditioner, and
Press the ON/OFF button.
To stop: Press the ON/OFF button.
NOTE
In case air is not blowing out during the operation.
Page 21
• If you do not want the AUTO mode program, change
to COOL, HEAT, DRY or FAN instead of AUTO.
• Airflow direction adjustment procedure.
Page 11
Page 12
Display in OFF status
•
The current time and preset OPERATION MODE are displayed while the
air conditioner is turned off.
1
2
•
Temperature adjustment during AUTO
■
Air temperature adjustment is possible even during automatic operation. There are 6 levels of adjustment possible with the button or the button.
During automatic operation, 24°C is preset both for heating and cooling.
When a change in temperature is required.
FAN SPEED
■ You can choose the capacity of your air-conditioner
when heating mode, cooling mode or fan mode.
Operation capacity by your choice FAN SPEED
Set automatically by microcomputer AUTO
Powerful operation with high capacity HI
Standard operation MED
Energy-saving operation LO
1
Press the or button.
When it is a little cold
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 button is pressed, the indicator does not change.
When it is a little hot
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 button is pressed, the indicator does not change.
Setting
temp.(
button.
button.
-6 -5 -4 -3 -2 -1+0+1 +2+3 +4+5+6
°C
)
18 19 20 21 22 23 24 25 26 27 28 29 30
Press the FAN SPEED button.
Move the [ mark] to the preferred fan speed position.
AUTO HI MED LO
NOTE
•
When changing FAN SPEED from HI to LO, the sound of
refrigerant flowing may be heard.
Remote Control display
–10–
COOL/HEAT/DRY/FAN mode operation
Point the remote control toward the air-conditioner, and
Airflow direction adjustment procedure. Page 12
NOTE
•
In case air is not blown out, when starting the heating operation.
• The operation program can also be set or changed when
the air-conditioner is not in operation.
Page 21
1
2
3
4
Press the MODE select button.
Move the [ mark] to the required operation position.
(Cool), (Heat), (Dry), (Fan)
Press the ON/OFF button.
Press the TEMP button.
Press or button for the preferred temperature.
Recommendation
Press the FAN SPEED button
Set the fan speed as preferred.
To stop: Press the ON/OFF button.
Air-conditioner operable temperature setting
■ Use within the following operational range. Operating outside of this range may result in the protection devices being activated,
preventing the unit from working.
Cooling operation Heating operation
Outside temperature
Inside temperature
Inside humidity
Approximately -15 °C to 46 °C Approximately -15 to 24 °C
Approximately 18 to 32 °C Approximately 15 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 drips.
—
Characteristics of HEAT mode operation
Mechanism and capacity of HEAT mode operation
■ Mechanism
• 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 during defrosting 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 sec. ON, 0.5 sec. OFF) during defrosting.
• The outdoor unit may give off 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.
–11–
Airflow direction adjustment
Adjusting airflow direction
■ Up/down direction can be adjusted with the AIRFLOW button on the remote control. Every time you press this button the mode
changes as follows:
Change on AIRFLOW (UP/DOWN) mode.
(Flap stopped)
NOTE FOR HEATING OPERATION
• When operation starts, the flap direction is fixed at the horizontal position in order to avoid cold draft, and return to the set the position that was set
after the warm air supply is starting.
• 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 AIRFLOW 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.
•
• Do not expose directly to airflow from the air-conditioner for a long time.
• 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.
WARNING
CAUTION
Recommended angle of the flap when stopping
HEAT
COOL, DRY
(Swing)
(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.
• Please stop the air conditioner when adjusting the air flow direction.
CAUTION
Operation point
Louver
Flap
–12–
SLEEP TIMER operation
■ The unit stops automatically after the set time lapses.
The set temperature is automatically adjusted according to the elapsed time in order to avoid too much cooling or heating.
Page 15
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
conditioning is turned off after the set time elapses.
■ If it is pressed while the unit is running
The air conditioner is turned off after the set time elapses.
Every time the button is pressed, the display changes as follows:
...
(Units of one hour)
No indication
(canceled)
Example: You prefer it to stop after 7 hours.
Set to
The timer light (yellow) is on.
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.
• The unit stops after the set time lapses.
• Cannot be set at the same time 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.
h
NOTE
Example: You prefer it to stop 22:30.
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.
1
2
3
4
Press the ON/OFF button.
Press the OFF TIMER button.
OFF TIMER display is blinking.
Press the or button.
Every time the button is pressed, the display is switched in the order of:
0:00
0:10 0:20
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 OFF TIMER button.
The display changes from blinking to steady lighting and the setting is complete.
The timer light (yellow) is on.
NOTE
•
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.
–13–
...
1:00
...
23:00 22:50
(Units of ten minutes)
1:10
(Units of ten minutes)
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.
Example: In the case the preferred room temperature is required at 8:00.
Press the ON-TIMER button.
1
ON TIMER display is blinking.
Press the or button.
2
Every time the button is pressed, the display is switched in the order of:
...
1:00
...
23:00 22:50
(Units of ten minutes)
1:10
(Units of ten minutes)
3
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 ON TIMER button.
The display changes from blinking to steady lighting and the setting is complete.
The timer light (yellow) is on.
The operation stops if it is set during operation.
Page 15
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.
NOTE
•
Operation starts 5 to 60 minutes before the set time.
•
The
timer
light
(yellow)
•
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.
goes out at the set time.
SLEEP TIMER + ON-TIMER operation
■ Combined timer operation of SLEEP TIMER and ON TIMER.
Example: When it is required to stop after 3 hours and then start operation at
8:00, near the set temperature.
■ SLEEP TIMER setting
Set by the procedures on page 13.
Set to
■ ON TIMER operation setting
Set by the above procedure mentioned in ON TIMER.
Set to
The setting of the lighting of the timer light (yellow) of this unit is complete.
• After the SLEEP TIMER set time has elapsed, the operation stops, and
it starts from 5 to 60 minutes before the ON TIMER’s set time.
• The timer light is turned off when ON TIMER set time comes.
h
Changing of set time
Set a new time by using the SLEEP or ON TIMER button.
How to cancel
Press the CANCEL button to turn off the timer display.
–14–
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: When it is prefered to stop at 22:30, and then start operation at 8:00,
near the set temperature.
■ 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 unit. The display will
change depending on the operational status.
With ON TIMER, the air conditioner starts running.
Then, with OFF TIMER, the air conditioner stops running.
With OFF TIMER, the air conditioner stops running.
Then, with ON TIMER, the air conditioner starts running.
Changing of set time
Set a new time by using the OFF TIMER or ON TIMER button.
How to cancel
Press the CANCEL 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
so 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. 60 mins.
before.
▼
(Operation)
Set time
SLEEP TIMER
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.
• During cooling : The preset temperature is lowered by 1°C at the
start of SLEEP operation (when the timer is set). After that, the temperature goes up by 1°C every an hour to become 1°C higher than
the present temperature.
• During heating: The preset temperature is lowered by 1°C at the
start of SLEEP operation (when the timer is set). After that the temperature becomes 3°C lower in an hour and 6°C lower in two hours
than the present temperature.
–15–
HIGH POWER/ECONOMY operation
If the air-conditioner is not operating, point the remote control toward the air conditioner, and
1
Press the ON/OFF button.
Press the HI POWER/ECONO button.
2
• 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
• 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:
ECONOMY
(
Concerning
Pressing the HI POWER/ECONO button intensifies the operating power and initiates powerful cooling or heating operation for 15
minutes continuously. The remote control
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.
HIGH POWER
operation
displays and the FAN SPEED display disappears.
•
When the following operations are set, HIGH POWER operation
will be canceled.
1 When the HI POWER/ECONO button is pressed again.
2 When the operation mode is changed.
When it has been 15 min. since HIGH POWER
3
operation has started.
• Not operable while the air conditioner is OFF.
)(
ECONOMY
) (Normal operation)
) (Normal operation)
No display
Concerning
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
NOTE
• It will go into ECONOMY operation at the next time the airconditioner runs in the following case.
1
2
3
ECONOMY
When the air-conditioner is stopped by ON/OFF button
during ECONOMY operation.
When the air-conditioner is stopped in SLEEP or OFF
TIMER operation during ECONOMY operation.
When the operation is retrieved from CLEAN operation.
operation
displays and the FAN SPEED display disappears.
• 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.
–16–
SELF CLEAN operation
■ CLEAN operation should be run after AUTO, COOL and DRY operation to remove the moisture from inside the indoor unit and control
the growth of mold and bacteria.
In order to active CLEAN operation, press the CLEAN
1
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
(CLEAN on)
NOTE
• Two hours later, the air conditioner stops running automatically. To stop
the air conditioner immediately, press the ON/OFF button.
• 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 CLEAN operation.
• The RUN light illuminates during CLEAN operation.
ON
OFF
• Pressing the SLEEP button during CLEAN operation cancels the 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.
(CLEAN off)
3 sec.
1 sec.
Auto restart function
■ What is 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.
Adjust the airflow direction properly.
Adjust the up/down and left/right airflow
to ensure a steady room temperature.
Clean the filter frequently.
Clogged filter may block the airflow and
cause less efficient operation.
Operate the unit only when needed.
Use the timer properly to operate the unit
only when needed.
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.
Keep heat source away when cooling.
Keep heat sources out of the room as
much as possible.
–17–
Maintenance
Careful matter during maintenance
Turn off the power
supply.
• Do not spill any liquid.
Wipe the unit with a
soft, dry cloth.
• Do not touch the aluminum fins on
the heat exchanger.
•
Stand firmly on a stepladder or other
stable object when removing the filter.
There's a danger
of electric shock.
During the operational season
Cleaning the air filter
Recommendation interval is once every two week
1
• Hook fingers on this side of the top face of air filter.
Pull the air filter forward.
The air filter will separate from front panel.
• When removing the air filter, pull it out gently
without tilting and with care not to shake off dirt
accumulated on the air filter.
• Be careful not to allow dirt shaken off the air filter
entering in the eyes or mouth.
Cleaning
CAUTION
2
Remove dirt from the air filter using a vacuum cleaner.
If the filter is very dirty, clean it with warm water (approx.
30°C), and dry it thoroughly.
• Do not clean the filter with boiling water.
• Do not dry them over an open flame.
• Pull them out gently.
CAUTION
Do not use the following articles:
• Hot water (40°C or more)
It may deform or discolour the unit.
Petrol, paint thinner, benzine or cleanser, etc.
•
They may deform or scratch the unit.
Reinstall the air filter
3
• Insert the air filter's ditch to the rail of the front
panel and push it in the back.
• Operating without putting back the air filter 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.
CAUTION
–18–
Rail (both side)
Ditch (both side)
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 recommendation intervals.
At the end of the season
Perform the fan operation for a half day.
1
Dry the inside of the unit.
Cooling season only.
Stop the unit and turn off the power supply.
2
The unit consumes approx. 2W even when the unit is not operating. Turning off the power supply will help saving energy consumption and cost.
Clean and reinstall the air filter.
3
Clean both the indoor and outdoor units.
4
Remove batteries from the remote control.
5
Installing, inspecting and replacing the air-cleaning filter
1. Remove the air filter.
2. Remove the filter holders, with the air-cleaning filter installed in the holders, from
the air filter.
3. 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 revitalizes the deodorizing
effect.
Remove the natural enzyme filter (green) from the filter holder and inspect the filter.
Use a vacuum cleaner to remove any dust or dirt from the natural enzyme filter.
Replace the natural enzyme filter if it cannot be cleaned or if it has been used for
about 1 year.
(The natural enzyme filter should be replaced after about 1 year of use. However,
the actual replacement period may vary depending on the conditions in which the
filter is used.)
(Do not dispose of the filter holders. They are reused. )
4. Install the air-cleaning filter in the filter holders, and then install the filter holders
in the air filter.
NOTE
Page 18
At the beginning of the season
Make sure that there are no obstacles blocking the airflow around the air intake and outlet
1
openings of the indoor and outdoor units.
Check if there is no corrosion or rust on the
base frame of the outdoor unit.
2
Ensure that the earth wiring is not snapped
nor disconnected.
3
Ensure that the air filter are clean.
4
Turn on the power supply.
5
Insert batteries in the remote control.
6
Filter holder
Filter holder
Air filter
Air-cleaning filter
• The natural enzyme filter and the photocatalytic washable deodor-
izing filter may be installed on either the right or left side of the air
filter.
• Place the natural enzyme filter with the green side upper.
5. Install the air filter.
CAUTION
• Do not expose natural enzyme filters to direct sunlight for an extended period. The bac-
teriolytic effect will be lost.
For replacement the air-cleaning filter, contact your dealer.
Item Feature Color
Photocatalytic washable
deodorizing filter
Natural enzyme filter
Page 18
Sources of odors on the filter are broken up, resulting in
a deodorizing effect.
By using the work of enzyme, mold and bacteria on the
filter are destroyed and the room air is kept clean.
–19–
Orange
Green
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 metre 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?
Has the timer been set in the “ON”
position?
Poor cooling or heating
Have you set the thermostat at a suitable
temperature?
Is the air filter clean? (Not clogged?)
Poor cooling
Is there any direct sunlight entering the
room?
If the air-conditioner does not operate properly after you have checked the above points, or if any doubt still exists after you have
consulted page 21, or if things happen as shown on page 22, switch off the power and contact your dealer.
An alternative refrigerant (R410A) is used in this air-conditioner. When asking your
dealer for service or inspection and maintenance, explain the dealer about it.
Is there a power failure or a blown fuse?
Did you leave any doors or windows
open?
Are there too many people in the room?Is there a heat source in the room?
–20–
Notice
The unit does not restart immediately after you have
stopped it.
(RUN light is on)
Airflow is not blown out when starting the HEATING operation.
RUN light blinks slowly
(1.5 sec ON, 0.5 sec OFF)
Airflow is not blown out for 5 to 15 min. or blown out not
warm wind for a moment at HEATING operation.
RUN light blinks slowly
(1.5 sec ON, 0.5 sec OFF)
Airflow is not blown out when starting the DRY operation.
(RUN light is on)
Some steam escapes during COOL operation.
There is a slight smell. Air blown out during operation may smell. This is caused by
You hear a slight gurgling sound. This is caused by refrigerating liquid 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.
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.
Restart is blocked for 3 minutes after you have stopped the operation to protect the unit.
The three-minute protection timer in the microcomputer automatically starts it up again.
Airflow has stopped to prevent blowing out of cold air until the
indoor heat exchanger has warmed up. (2 to 5 min.) (HOT
KEEP program)
When outdoor temperature is low and humidity is high, the unit
sometimes performs defrosting automatically. Please wait. During defrosting, water or steam may escape from the outdoor
unit.
The indoor fan may stop to prevent re-evaporation of dehumified
moisture and to save energy.
This may occur if the room's temperature and humidity are very high. It
disappears as soon as the temperature and humidity decrease.
tobacco or cosmetics adhering to the unit.
This is caused by the operation of the refrigerant control valves
or electric components.
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, cut out 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.
Whistling noise is heard from the outdoor unit.
Fan will not stop immediately after unit operation was
stopped.
RUN light stays on even though operation was stopped.
The noise means that the revolution speed of the compressor is
increasing or decreasing.
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
The RUN light illuminates during CLEAN operation.
Run light turns off when CLEAN operation ends.
protect the unit.
–21–
Contact your dealer
■ Turn off the power switch immediately and inform your dealer in any of the following situations:
The cable becomes extremely hot.
The covering of the cable is cracked.
The fuse or switch blows continuously.
A switch does not activate properly.
When abnormalities occur, turn off the power supply immediately and turn it on after 3 minutes. Restart the operation
with ON/OFF button of the remote control and the abnormalities still continue.
If the power cord becomes damaged, ask your dealer or a qualified engineer to
install the replacement to avoid accidents.
CAUTION
The TV, radio or other equipment starts to malfunction.
You hear a strange noise during operation.
The RUN and TIMER lights on the unit display section blink
quickly (0.5 sec. ON; 0.5 sec. OFF) and do not work.
–22–
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 ON
RUN light
1-time flash
2-time flash
5-time flash
6-time flash
TIMER light
1-time flash
2-time flash
4-time flash
1-time flash
2-time flash
3-time flash
4-time flash
5-time flash
6-time flash
Description of trouble
Heat exchanger sensor error
Room temperature sensor error
Active filter voltage error
Indoor fan motor error
Outdoor temperature sensor error • Broken outdoor sensor wire, poor connector connection
Outdoor heat exchanger fluid
pipe sensor error
Discharge pipe sensor error
Current cut
Trouble of outdoor unit
Over current
Power transistor error
Over heat of compressor
Error of signal transmission
• Broken heat exchanger sensor wire, poor connector
connection
• Broken room temperature sensor wire, poor connector
connection
• Defective power supply
• Defective fan motor, poor connector connection
• Broken heat exchanger fluid pipe sensor wire, poor
• Broken discharge pipe sensor wire, poor connector
• Compressor locking, open phase on compressor output,
• Broken power transistor, broken compressor wire
•
• Compressor blockage
• Overload operation, overcharge
• Broken power transistor
•
•
connection
connector
connection.
shortcircuit on power transistor, closed service valve
Broken discharge pipe sensor wire, poor connector connection
Gas shortage, defective discharge pipe sensor, closed service
valve
Defective power supply, Broken signal wire, defective in/outdoor
unit boards
Cause
RUN light 2 time flash
7-time flash
Keep flashing
2-time flash
Outdoor fan motor error • Defective fan motor, poor connector connection
Cooling high pressure protection • Gas over charge, short circuit of outdoor unit
Rotor lock
• Defective compressor
• Open phase on compressor
• Defective outdoor unit boards
–23–
–24–
AIR-CONDITIONING & REFRIGERATION DIVISION
3-1, Asahi, Nishibiwajima-cho, Kiyosu, Aichi, 452-8561, Japan
http://www.mhi.co.jp
MITSUBISHI HEAVY INDUSTRIES AIR-CONDITIONING EUROPE, LTD.
7 Roundwood Avenue, Stockley Park, Uxbridge, Middlesex, UB11 1AX, United Kingdom
Te l: +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
Te l: +61-2-8571-7977
Fax: +61-2-8571-7992
http://www.mhiaa.com.au
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