Mitsubishi MSY-GL15NA-U1, MSY-GL12NA-U1, MSY-GL09NA-U1 Owner’s Manual
SPLIT-TYPE AIR CONDITIONERS
INDOOR UNIT
MSY-GL09NA MSY-GL12NA
MSY-GL15NA
OPERATING INSTRUCTIONS
• Tousethisunit correctlyandsafely,be suretoread theseoperatinginstructionsbeforeuse.
MANUAL DE INSTRUCCIONES
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NOTICE D’UTILISATION
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For user
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● OPERATING INSTRUCTIONS ●
CONTENTS
■ SAFETY PRECAUTIONS 1
■ NAME OF EACH PART 3
■ PREPARATION BEFORE OPERATION 4
■ SELECTING OPERATION MODES 5
■ FAN SPEED AND AIRFLOW DIRECTION ADJUSTMENT 6
■ SMART SET OPERATION 6
■ ECONO COOL OPERATION 7
■ TIMER OPERATION (ON/OFF TIMER) 7
■ CLEANING 8
■ WHEN YOU THINK THAT TROUBLE HAS OCCURRED 9
■ WHEN THE AIR CONDITIONER IS NOT GOING TO BE USED FOR A LONG TIME 10
■ INSTALLATION PLACE AND ELECTRICAL WORK 10
■ SPECIFICATIONS
10
SAFETY PRECAUTIONS
• Since rotating parts and parts which could cause an electric shock are used in this
product, be sure to read these “Safety Precautions” before use.
• Since the cautionary items shown here are important for safety, be sure to observe
them.
• After reading this manual, keep it together with the installation manual in a handy
place for easy reference.
• Be sure to receive a guarantee card from your dealer and check that the purchased
date and shop name, etc. are entered correctly.
Marks and their meanings
WARNING :
CAUTION :
Incorrect handling could cause serious hazard, such as death,
serious injury, etc. with a high probability.
Incorrect handling could cause serious hazard depending on
the conditions.
WARNING
Do not connect the power cord to an intermediate point, use an
extension cord, or connect multiple devices to a single AC outlet.
• This may cause overheating, fi re, or electric shock.
Make sure the power plug is free of dirt and insert it securely
into the outlet.
• A dirty plug may cause fi re or electric shock.
Do not bundle, pull, or modify the power cord, and do not apply
heat or place heavy objects on it.
• This may cause fi re or electric shock.
Do not turn the breaker OFF/ON or disconnect/connect the power
plug during operation.
• This may create sparks, which can cause fi re.
• After the indoor unit is switched OFF with the remote controller,
make sure to turn the breaker OFF or disconnect the power plug.
Do not expose your body directly to cool air for a prolonged
length of time.
• This could be detrimental to your health.
The unit should not be installed, relocated, disassembled,
altered, or repaired by the user.
• An improperly handled air conditioner may cause fi re, electric
shock, injury, or water leakage, etc. Consult your dealer.
• If the power supply cord is damaged, it must be replaced by the
manufacturer or its service agent in order to avoid a hazard.
When installing, relocating, or servicing the unit, make sure that
no substance other than the specifi ed refrigerant (R410A) enters
the refrigerant circuit.
• Any presence of foreign substance such as air can cause abnormal
pressure rise and may result in explosion or injury.
• The use of any refrigerant other than that specifi ed for the system
will cause mechanical failure, system malfunction, or unit breakdown. In the worst case, this could lead to a serious impediment
to securing product safety.
Meanings of symbols used in this manual
: Be sure not to do.
: Be sure to follow the instruction.
: Never insert your fi nger or stick, etc.
: Never step onto the indoor/outdoor unit and do not put anything on them.
: Danger of electric shock. Be careful.
: Be sure to disconnect the power supply plug from the power outlet.
: Be sure to shut off the power.
This appliance is not intended for use by persons (including
children) with reduced physical, sensory or mental capabilities,
or lack of experience and knowledge, unless they have been
given supervision or instruction concerning use of the appliance
by a person responsible for their safety.
Children should be supervised to ensure that they do not play
with the appliance.
Do not insert your fi nger, a stick, or other objects into the air
inlet or outlet.
• This may cause injury, since the fan inside rotates at high speeds
during operation.
In case of an abnormal condition (such as a burning smell),
stop the air conditioner and disconnect the power plug or turn
the breaker OFF.
• A continued operation in the abnormal state may cause a malfunction, fi re, or electric shock. In this case, consult your dealer.
When the air conditioner does not cool or heat, there is a possibility of refrigerant leakage. In this case, consult your dealer.
If a repair involves recharging the unit with refrigerant, ask the
service technician for details.
• The refrigerant used in the air conditioner is safe. Normally, it does
not leak. However, if refrigerant leaks and comes in contact with
a heat source such as a fan heater, kerosene heater, or cooking
stove, it will create a harmful gas.
The user should never attempt to wash the inside of the indoor
unit. Should the inside of the unit require cleaning, contact
your dealer.
• Unsuitable detergent may cause damage to plastic material inside
the unit, which may result in water leakage. Should detergent
come in contact with electrical parts or the motor, it will result in
a malfunction, smoke, or fi re.
En-1
SAFETY PRECAUTIONS
CAUTION
Do not touch the air inlet or the aluminum fi ns of the indoor/
outdoor unit.
• This may cause injury.
Do not use insecticides or fl ammable sprays on the unit.
• This may cause a fi re or deformation of the unit.
Do not expose pets or houseplants to direct airfl ow.
• This may cause injury to the pets or plants.
Do not place other electric appliances or furniture under the
indoor/outdoor unit.
• Water may drip down from the unit, which may cause damage or
malfunction.
Do not leave the unit on a damaged installation stand.
• The unit may fall and cause injury.
Do not step on an unstable bench to operate or clean the unit.
• This may cause injury if you fall down.
Do not pull the power cord.
• This may cause a portion of the core wire to break, which may cause
overheating or fi re.
Do not charge or disassemble the batteries, and do not throw
them into a fi re.
• This may cause the batteries to leak, or cause a fi re or explosion.
Do not operate the unit for more than 4 hours at high humidity
(80% RH or more) and/or with windows or outside door left open.
• This may cause the water condensation in the air conditioner, which
may drip down, wetting or damaging the furniture.
• The water condensation in the air conditioner may contribute to
growth of fungi, such as mold.
Do not use the unit for special purposes, such as storing food,
raising animals, growing plants, or preserving precision devices
or art objects.
• This may cause deterioration of quality, or harm to animals and
plants.
Do not expose combustion appliances to direct airfl ow.
• This may cause incomplete combustion.
Never put batteries in your mouth for any reason to avoid accidental ingestion.
• Battery ingestion may cause choking and/or poisoning.
Before cleaning the unit, switch it OFF and disconnect the power
plug or turn the breaker OFF.
• This may cause injury, since the fan inside rotates at high speeds
during operation.
When the unit will be unused for a long time, disconnect the power
plug or turn the breaker OFF.
• The unit may accumulate dirt, which may cause overheating or fi re.
Replace all batteries of the remote controller with new ones of
the same type.
• Using an old battery together with a new one may cause overheating,
leakage, or explosion.
If the battery fl uid comes in contact with your skin or clothes,
wash them thoroughly with clean water.
• If the battery fl uid comes in contact with your eyes, wash them
thoroughly with clean water and immediately seek medical attention.
Ensure that the area is well-ventilated when the unit is operated
together with a combustion appliance.
• Inadequate ventilation may cause oxygen starvation.
Turn the breaker OFF when you hear thunder and there is a possibility of a lightning strike.
• The unit may be damaged if lightning strikes.
After the air conditioner is used for several seasons, perform
inspection and maintenance in addition to normal cleaning.
• Dirt or dust in the unit may create an unpleasant odor, contribute to
growth of fungi, such as mold, or clog the drain passage, and cause
water to leak from the indoor unit. Consult your dealer for inspection
and maintenance, which require specialized knowledge and skills.
Do not operate switches with wet hands.
• This may cause electric shock.
Do not clean the air conditioner with water or place an object that
contains water, such as a fl ower vase, on it.
• This may cause fi re or electric shock.
Do not step on or place any object on the outdoor unit.
• This may cause injury if you or the object falls down.
IMPORTANT
Dirty fi lters cause condensation in the air conditioner which will contribute
to the growth of fungi such as mold. It is therefore recommended to clean air
fi lters every 2 weeks.
For installation
WARNING
Consult your dealer for installing the air conditioner.
• It should not be installed by the user since installation requires specialized knowledge and skills. An improperly installed air conditioner
may cause water leakage, fi re, or electric shock.
Provide a dedicated power supply for the air conditioner.
• A non-dedicated power supply may cause overheating or fi re.
Do not install the unit where fl ammable gas could leak.
• If gas leaks and accumulates around the unit, it may cause an
explosion.
Ground the unit correctly.
• Do not connect the ground wire to a gas pipe, water pipe, lightning
rod, or a telephone ground wire. Improper grounding may cause
electric shock.
CAUTION
Install a Ground Fault Interrupt (GFI) circuit breaker depending
on the installation location of the air conditioner (such as highly
humid areas).
• If the Ground Fault Interrupt (GFI) breaker is not installed, it may
cause electric shock.
Ensure that the drain water is properly drained.
• If the drain passage is improper, water may drip down from the
indoor/outdoor unit, wetting and damaging the furniture.
In case of an abnormal condition
Immediately stop operating the air conditioner and consult your dealer.
En-2
● OPERATING INSTRUCTIONS ●
NAME OF EACH PART
Indoor unit Remote controller
Front panel
Air fi lter
(Nano platinum fi lter)
Air cleaning fi lter
(Anti-Allergy
Enzyme Filter)
Air inlet
Air outlet
Horizontal vane
Heat exchanger
Display section
Remote control receiving section
Operation indicator lamp
Emergency
operation switch
Page 5
Operation display
section
Battery
replacement
indicator
Page 4
OFF/ON
(stop/operate)
button
FAN speed
control button
Page 6
Operation
select button
Page 5
ECONO
COOL
button
Page 7
VANE
control button
Page 6
Signal transmitting
section
Distance of signal :
About 20 ft. (6 m)
Beep(s) is (are) heard
from the indoor unit when
the signal is received.
Temperature buttons
Pages 4, 5
Off-timer button Page 7
On-timer button Page 7
SMART SET button Page 6
TIME set buttons Pages 4, 7
Increase time
Decrease time
CLOCK button Page 4
RESET button Page 4
Lid
Slide down to open
Remote controller
holder
Outdoor unit
Outdoor units may be different in appearance.
Air inlet (back and side)
Refrigerant piping
Drainage hose
Air outlet
Drain outlet
• Install the remote controller holder in a place where
the signal can be received
by the indoor unit.
Only use the remote controller provided with the unit.
Do not use other remote controllers.
If two or more indoor units are installed in proximity to one another, an indoor unit that
is not intended to be operated may respond to the remote controller.
En-3
PREPARATION BEFORE OPERATION
Before operation: Insert the power supply plug into the power outlet and/or turn the
breaker on.
Installing the remote controller batteries
Press RESET.
4.
1.
Remove the front lid.
Insert the negative pole
2.
of AAA
alkaline batteries fi rst.
Install the front lid.
3.
• Make sure the polarity of the batteries is correct.
• Do not use manganese batteries and leaking batteries. The remote controller could
malfunction.
• Do not use rechargeable batteries.
• The battery replacement indicator lights up when the battery is running low. In about
7 days after the indicator starts lights up, the remote controller stops working.
• Replace all batteries with new ones of the same type.
• Batteries can be used for approximately 1 year. However, batteries with expired
shelf lives last shorter.
• Press RESET gently using a thin instrument.
If the RESET button is not pressed, the remote controller may not operate correctly.
Setting current time
Press CLOCK.
1.
Press the TIME buttons to set
2.
the time.
Press CLOCK again.
3.
• Press CLOCK gently using a thin instrument.
Each press increases/decreases
the time by 1 minute (10 minutes
when pressed longer).
Changing temperature units (°F→°C)
Unit is preset with °F.
Press RESET while
1.
the temperature buttons are pressed.
• Press RESET gently using a thin instrument.
• To change temperature unit from °C to °F, press RESET.
En-4
● OPERATING INSTRUCTIONS ●
SELECTING OPERATION MODES
1
Press
to start the operation.
I FEEL mode
The unit selects the operation mode according to the room temperature when
I FEEL is selected. When the room temperature is higher than 77°F (25°C),
COOL is selected (set temperature: 75°F [24°C]). When the room temperature is
lower than 77°F (25°C), DRY is selected. However, when operation is stopped
and then started within 2 hours, the mode which has been selected previously
is operated.
Note:
During COOL operation, the set temperature may not be changed when the room
temperature is more than 4°F (2°C) higher than the set temperature. In this case,
please wait until the room temperature drops to within 4°F (2°C) of the set temperature.
COOL mode
Enjoy cool air at your desired temperature.
Note:
Do not operate COOL mode at very low outside temperatures (less than 14°F
[-10°C]). Water condensed in the unit may drip and wet or damage furniture, etc.
DRY mode
Dehumidify your room. The room may be cooled slightly.
Temperature cannot be set during DRY mode.
2
Press to select operation mode. Each press
changes mode in the following order:
(I FEEL ) (COOL) (DRY) (FAN)
3
Press or to set the temperature.
Each press raises or lowers the temperature by 1°F
(1°C).
Press to stop the operation.
• The same setting is selected the next time by simply pressing .
Operation indicator lamp
The operation indicator lamp shows the operation state of the unit.
Indication Operation state Room temperature
The unit is operating to reach the set
temperature
The room temperature is approaching the
set temperature
Lighted Not lighted
About 4°F (2°C) or more
away from set temperature
About 2 to 4°F (1 to 2°C)
from set temperature
FAN mode
Circulate the air in your room.
Emergency operation
When the remote controller cannot be used...
Emergency operation can be activated by pressing the emergency operation switch
(E.O.SW) on the indoor unit.
Each time the E.O.SW is pressed, the operation changes in the
following order:
Operation indicator lamp
Emergency COOL
Stop
Note:
The fi rst 30 minutes of operation is test run. Temperature control
does not work, and fan speed is set to High.
Auto restart function
If a power failure occurs or the main power is turned off during operation, “Auto restart
function” automatically starts operation in the same mode as the one set with the remote
controller just before the shutoff of the main power. When timer is set, timer setting is
cancelled and the unit starts operation when power is resumed.
If you do not want to use this function, please consult the service representative
because the setting of the unit needs to be changed.
Set temperature : 75°F (24°C)
Fan speed : Medium
Horizontal vane : Auto
En-5
FAN SPEED AND
AIRFLOW DIRECTION ADJUSTMENT
SMART SET OPERATION
Press to select fan speed. Each press changes
fan speed in the following order:
(AUTO) (Quiet) (Low) (Med.) (High) (Super High)
• Two short beeps are heard from the indoor unit when set to AUTO.
• Use higher fan speed to cool the room quicker. It is recommended to
lower the fan speed once the room is cool.
• Use lower fan speed for quiet operation.
Press to select airfl ow direction. Each press
changes airfl ow direction in the following order:
(AUTO) (1) (2) (3) (4) (5) (SWING)
• Two short beeps are heard from the indoor unit when set to AUTO.
Airflow direction
(AUTO) ..........The vane is set to the most effi cient airfl ow direction. :horizontal
position.
(Manual).........For efficient air conditioning, select the upper position for COOL/
DRY, and the lower position for FAN. If the position (4) or (5) is
selected during COOL/DRY, the vane automatically moves to the
upward position after 0.5 to 1 hour to prevent any condensation from
dripping.
(Swing)...........The vane moves up and down intermittently.
1
Press during COOL or ECONO COOL mode to
select SMART SET mode.
2
Set the temperature, fan speed, and airfl ow direction.
• The same setting is selected from the next time by simply pressing
.
• One setting can be saved.
• Select the appropriate temperature, fan speed, and airflow direction ac-
cording to your room.
Press again to cancel SMART SET operation.
• SMART SET operation also is cancelled when the MODE button is
pressed.
SMART SET operation
A simplified set back function enables to recall the preferred (preset) setting with
a single push of the
the previous setting in an instance.
Example of use:
1. Low energy mode
Set the temperature 4°F (2°C) to 6°F (3°C) warmer in COOL mode. This setting is
suitable for unoccupied room, and while you are sleeping.
2. Saving frequently used settings
Save your preferred setting for COOL/ECONO COOL. This enables you to select
your preferred setting with a single push of the button.
button. Press the button again and you can go back to
■ To change the horizontal airfl ow direction.
Move the vertical vane manually before starting operation.
En-6
● OPERATING INSTRUCTIONS ●
ECONO COOL OPERATION
Press during COOL mode page 5 to start ECONO COOL operation.
The unit performs swing operation vertically in various cycles according to the
temperature of airflow. Set temperature is set 4°F (2°C) higher automatically.
Press again to cancel ECONO COOL operation.
• ECONO COOL operation is also cancelled when the VANE button is
pressed.
What is “ECONO COOL”?
Swing airfl ow (change of airfl ow) makes you feel cooler than stationary airfl ow. So,
even though the set temperature is automatically set at 4°F (2°C) higher, it is possible
to perform cooling operation with keeping comfort. As a result, energy can be saved.
TIMER OPERATION (ON/OFF TIMER)
1
Press or during operation to set the timer.
(ON timer) : The unit turns ON at the set time.
(OFF timer) : The unit turns OFF at the set time.
* or blinks.
* Make sure that the current time is set correctly. Page 4
2
Press (Increase) and (Decrease) to set the
time of timer.
Each press increases or decreases the set time by 10 minutes.
• Set the timer while
or is blinking.
3
Press or again to cancel timer.
Note:
• ON and OFF timers can be set together. mark indicates the order of timer operations.
• If power failure occurs while ON/OFF timer is set, see page 5 “Auto restart
function”.
En-7
CLEANING
Instructions:
• Switch off the power supply or turn off the breaker before cleaning.
• Be careful not to touch the metal parts with your hands.
• Do not use benzine, thinner, polishing powder, or insecticide.
Air fi lter (Nano platinum fi lter)
• Clean every 2 weeks
• Remove dirt by a vacuum cleaner, or rinse with water.
• After washing with water, dry it well in shade.
What is “Nano platinum fi lter”?
Nano platinum is a ceramic particle that includes a platinum nanoparticle.
The particles are incorporated into the fi lter material, which results in providing semi-permanent antibacterial and deodorizing characteristics for the fi lter.
Nano platinum surpasses the catechin (a biofl avonoid that is found in green
tea) in performance. Nano platinum fi lter uses this compound not only to improve air quality but also to eliminate bacteria and viruses. This air fi lter has a
semi-permanent lasting effect even after washing it with water.
• Use only diluted mild detergents.
• Do not expose parts to direct sunlight, heat, or fi re to dry.
• Do not use water hotter than 120°F (50°C).
Air cleaning fi lter
(Anti-Allergy Enzyme Filter)
Back side of air fi lter
Every 3 months:
• Remove dirt by a vacuum cleaner.
When dirt cannot be removed by vacuum cleaning:
•
Soak the fi lter and its frame in lukewarm water before rinsing it.
•
After washing, dry it well in shade.
Every year:
• Replace it with a new air cleaning fi lter for best performance.
• Parts Number MAC-408FT-E
Pull to remove from the air fi lter
Front panel
Hinge
Hole
1. Lift the front panel until a “click” is heard.
2. Hold the hinges and pull to remove as shown in the illustration above.
• Wipe with a soft dry cloth or rinse it with water.
• Do not soak it in water for more than two hours.
• Dry it well in shade.
3. Install the front panel by following the removal
procedure in reverse. Close the front panel
securely and press the positions indicated by the
arrows.
Important
• Clean the fi lters regularly for best performance and to re-
duce power consumption.
• Dirty fi lters cause condensation in the air conditioner which
will contribute to the growth of fungi such as mold. It is
therefore recommended to clean air fi lters every 2 weeks.
En-8
● OPERATING INSTRUCTIONS ●
WHEN YOU THINK THAT TROUBLE HAS OCCURRED
Even if these items are checked, when the unit does not recover from the trouble,
stop using the air conditioner and consult your dealer.
Symptom Explanation & Check points
Indoor Unit
The unit cannot be operated.
The horizontal vane does not
move.
The unit cannot be operated
for about 3 minutes when
restarted.
Mist is discharged from the air
outlet of the indoor unit.
The swing operation of the
HORIZONTAL VANE is
suspended for a while, then
restarted.
The airfl ow direction changes
during operation.
The direction of the horizontal
vane cannot be adjusted with
the remote controller.
The unit starts operation by
itself when the main power is
turned on, but hasn’t received
sign from the remote controller.
The indoor unit discolors over
time.
Outdoor Unit
The fan of the outdoor unit
does not rotate even though
the compressor is running.
Even if the fan starts to rotate,
it stops soon.
Water leaks from the outdoor
unit.
Remote controller
The display on the remote
controller does not appear or it
is dim. The indoor unit does not
respond to the remote control
signal.
• Is the breaker turned on?
• Is the power supply plug connected?
• Is the ON timer set? Page 7
• Are the horizontal vanes installed correctly?
• Is the fan guard deformed?
• This protects the unit according to instructions from
the microprocessor. Please wait.
• The cool air from the unit rapidly cools moisture
in the air inside the room, and it turns into mist.
• This is for the swing operation of the HORIZONTAL VANE to be performed normally.
• When the unit is operated in COOL or DRY mode,
if the operation continues with air blowing down
for 0.5 to 1 hour, the direction of the air fl ow is
automatically set to upward position to prevent
water from condensing and dripping.
• These models are equipped with an auto restart function. When the main power is turned
off without stopping the unit with the remote
controller and is turned on again, the unit
starts operation automatically in the same
mode as the one set with the remote controller just before the shutoff of the main power.
Refer to “Auto restart function” page 5 .
• Although plastic turns yellow due to the infl uence of
some factors such as ultraviolet light and temperature, this has no effect on the product functions.
• When the outside temperature is low during cooling operation, the fan operates intermittently to
maintain suffi cient cooling capacity.
• During COOL and DRY operations, pipe or pipe
connecting sections are cooled and this causes
water to condense.
• Are the batteries exhausted? Page 4
• Is the polarity (+, -) of the batteries correct?
Page 4
• Are any buttons on the remote controller of other
electric appliances being pressed?
Symptom Explanation & Check points
Does not cool
The room cannot be cooled
suffi ciently.
Airfl ow
The air from the indoor unit
smells strange.
Sound
Cracking sound is heard. • This sound is generated by the expansion/con-
“Burbling” sound is heard. • This sound is heard when the outside air is ab-
Mechanical sound is heard
from the indoor unit.
The sound of water fl owing is
heard.
Hissing sound is sometimes
heard.
In the following cases, stop using the air conditioner and consult your dealer.
• When water leaks or drips from the indoor unit.
• When the upper operation indicator lamp blinks.
• When the breaker trips frequently.
• The remote control signal is not received in a room where an electronic ON/OFF type
fl uorescent lamp (inverter-type fl uorescent lamp, etc.) is used.
• Operation of the air conditioner interferes with radio or TV reception. An amplifi er may
be required for the affected device.
• When an abnormal sound is heard.
• When any refrigerant leakage is found.
• Is the temperature setting appropriate?
Page 5
• Is the fan setting appropriate? Please
speed to High or Super High.
• Are the fi lters clean? Page 8
• Is the fan or heat exchanger of the indoor unit
clean?
• Are there any obstacles blocking the air inlet or
outlet of the indoor or outdoor unit?
• Is a window or door open?
• When a ventilation fan or a gas cooker is used in
a room, the cooling load increases, resulting in an
insuffi cient cooling effect.
• When the outside temperature is high, the cooling
effect may not be suffi cient.
• It may take a certain time to reach the setting
temperature or may not reach that depending on
the size of the room, the ambient temperature, and
the like.
• Are the fi lters clean? Page 8
• Is the fan or heat exchanger of the indoor unit
clean?
• The unit may suck in an odor adhering to the wall,
carpet, furniture, cloth, etc. and blow it out with the
air.
traction of the front panel, etc. due to change in
temperature.
sorbed from the drain hose by turning on the range
hood or the ventilation fan, making water fl owing
in the drain hose to spout out.
This sound is also heard when the outside air
blows into the drain hose in case the outside wind
is strong.
• This is the switching sound in turning on/off the
fan or the compressor.
• This is the sound of refrigerant or condensed water
fl owing in the unit.
• This is the sound when the fl ow of refrigerant inside
the unit is changed.
change fan
Page 6
En-9
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