Mitsubishi MSZ-EF50VAW, MSZ-EF25VAW, MSZ-EF22VAB, MSZ-EF25VAB, MSZ-EF35VAB Operating Instructions Manual
...
SPLIT-TYPE AIR CONDITIONERS
INDOOR UNIT
MSZ-EF22VAW MSZ-EF25VAW MSZ-EF35VAW MSZ-EF42VAW MSZ-EF50VAW
MSZ-EF22VAB MSZ-EF25VAB MSZ-EF35VAB MSZ-EF42VAB MSZ-EF50VAB
MSZ-EF22VAS MSZ-EF25VAS MSZ-EF35VAS MSZ-EF42VAS MSZ-EF50VAS
OPERATING INSTRUCTIONS
• To use this unit correctly and safely, be sure to read these operating instructions before use.
For user
English
● OPERATING INSTRUCTIONS ●
CONTENTS
■ SAFETY PRECAUTIONS 1
■ NAME OF EACH PART 3
■ PREPARATION BEFORE OPERATION 3
■ SELECTING OPERATION MODES 4
■ FAN SPEED AND AIRFLOW DIRECTION ADJUSTMENT 5
■ I-SAVE OPERATION 6
■ ECONO COOL OPERATION 6
■ TIMER OPERATION (ON/OFF TIMER) 6
■ WEEKLY TIMER OPERATION 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 data 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, damage, 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.
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.
En-1
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.
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.
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.
SAFETY PRECAUTIONS
CAUTION
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 con-
tribute to the growth of fungi such as mold. It is therefore recommended
to clean air fi lters every 2 weeks.
Before starting the operation, ensure that the horizontal vanes are in the
closed position. If operation starts when the horizontal vanes are in the
open position, they may not return to the correct position.
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 outdoor unit, it may
cause an explosion.
Earth the unit correctly.
• Do not connect the earth wire to a gas pipe, water pipe, lightning rod, or a telephone ground wire. Improper earthing may
cause electric shock.
CAUTION
Install an earth leakage breaker depending on the installa-
tion location of the air conditioner (such as highly humid
areas).
• If an earth leakage 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
(Electrostatic anti-allergy
enzyme fi lter, option)
Air inlet
Horizontal vane
Air outlet
Heat exchanger
Operation
indicator lamp
Emergency
operation
switch
Remote control
receiving section
Page 4
Operation
display section
Temperature
Page 4
buttons
Operation
select button
Page 4
ECONO COOL
button Page 6
i-save button
Page 6
Signal transmitting
section
Distance of signal :
About 6 m
Beep(s) is (are) heard
from the indoor unit
when the signal is
received.
ON/OFF
(operate/stop) button
FAN speed control
button Page 5
VANE control button Page 5
TIME, TIMER set buttons
Pages 3, 6
Increase time
Decrease time
WEEKLY TIMER
set buttons
Page 7
Outdoor unit
Outdoor units may be different in appearance.
Air inlet (back and side)
Piping
Air outlet
Drainage hose
Drain outlet
Remote controller holder
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
4.
Press RESET
1.
Remove the front lid
Setting current time
1.
Press CLOCK
• Install the remote con-
troller holder in a place
where the signal can be
received by the indoor
unit.
• When the remote con-
troller is not used, place
it in this holder.
RESET button Page 3
CLOCK button Page 3
Lid
Slide the lid down to open
the remote controller. Slide
it down further to get to the
weekly timer buttons.
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.
3.
Press the DAY button
to set the day
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.
• 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.
En-3
2.
Insert AAA
alkaline batteries
Install the front lid
2.
4.
Press CLOCK again
• Press CLOCK gently using a thin instrument.
Each press increases/decreases
Press either the TIME button or
the TIMER buttons to set the
time.
the time by 1 minute (10 minutes
when pressed longer)
SELECTING OPERATION MODES
AUTO mode (Auto change over)
The unit selects the operation mode according to the difference between the
room temperature and the set temperature. During AUTO mode, the unit
changes mode (COOL↔HEAT) when the room temperature is 2°C away
from the set temperature for more than 15 minutes.
Note:
Auto Mode is not recommended if this indoor unit is connected to a MXZ
type outdoor unit. When several indoor units are operated simultaneously,
the unit may not be able to switch operation mode between COOL and
HEAT. In this case, the indoor unit becomes standby mode (Refer to table
of Operation indicator lamp).
COOL mode
Enjoy cool air at your desired temperature.
Note:
Do not operate COOL mode at very low outside temperatures (less than
-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.
1
Press
2
Press to select operation mode. Each press
to start the operation.
changes mode in the following order:
(AUTO) (COOL) (DRY) (HEAT) (FAN)
3
Press or to set the temperature.
Each press raises or lowers the temperature by 1°C.
Press to stop the operation.
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 approach-
ing the set temperature
Standby mode (only during multi
system operation)
Lighted Blinking Not lighted
About 2°C or more
away from set tem-
perature
About 1 to 2°C from
set temperature
—
HEAT mode
Enjoy warm air at your desired 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
Emergency HEAT
Stop
Note:
• The fi rst 30 minutes of operation is test run. Temperature
control does not work, and fan speed is set to High.
• In the emergency heating operation, the fan speed gradually rises to blow out warm air.
• In the emergency cooling operation, the horizontal vanes’
position will be reset in about a minute, then the operation
will start.
Set temperature : 24°C
Fan speed : Medium
Horizontal vane : Auto
Note:
Multi system operation
Two or more indoor units can be operated by one outdoor unit. When several
indoor units are operated simultaneously, cooling/fan and heating operations
cannot be done at the same time. When COOL/FAN is selected with one unit
and HEAT with another or vice versa, the unit selected last goes into standby
mode.
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.
En-4
● OPERATING INSTRUCTIONS ●
FAN SPEED AND
AIRFLOW DIRECTION ADJUSTMENT
■ To change the horizontal airfl ow direction.
Move the vertical vane manually before starting operation.
Note:
If the vertical vanes are adjusted, be sure to return the horizontal vanes to the
original closed position.
Press to select fan speed. Each press changes
fan speed in the following order:
Airflow direction
(AUTO) .........The vane is set to the most effi cient airfl ow direction. COOL/
(Manual) .......For efficient air conditioning, select the upper position for
(Swing) ......... The vane moves up and down intermittently.
DRY/FAN:horizontal position. HEAT:position (4).
COOL/DRY, and the lower position for HEAT. If the lower
position is selected during COOL/DRY, the vane automatically
moves to the horizontal position after 0.5 to 1 hour to prevent
any condensation from dripping.
(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/heat the room quicker. It is recommended
to lower the fan speed once the room is cool/warm.
• Use lower fan speed for quiet operation.
Note:
Multi system operation
When several indoor units are operated simultaneously by one outdoor unit for
heating operation, the temperature of the airfl ow may be low. In this case, it is
recommended to set the fan speed to AUTO.
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.
• Always use the remote controller when changing the direction of airflow. Moving the horizontal vanes with your hands causes them to malfunction.
• When the breaker is turned on, the horizontal vanes’ position will be
reset in about a minute, then the operation will start. The same is true
in the emergency cooling operation.
• When the horizontal vanes seem to be in an abnormal position, see
page 9 .
En-5
I-SAVE OPERATION
ECONO COOL OPERATION
1
Press during COOL, ECONO COOL, or HEAT
mode to select i-save mode.
2
Set the temperature, fan speed, and airfl ow direction.
• The same setting is selected from the next time by simply pressing
.
• Two settings can be saved. (One for COOL/ECONO COOL, one for
HEAT)
• Select the appropriate temperature, fan speed, and airflow direction
according to your room.
• Normally, the minimum temperature setting in HEAT mode is 16°C.
However, during i-save operation only, the minimum temperature setting is 10°C.
Press again to cancel i-save operation.
• i-save operation also is cancelled when the MODE button is pressed.
i-save operation
A simplified set back function enables to recall the preferred (preset) setting with
a single push of the
to the previous setting in an instance.
Example of use:
1. Low energy mode
Set the temperature 2°C to 3°C warmer in COOL and cooler in HEAT 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 and HEAT. 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
Press during COOL mode page 4 to start
ECONO COOL operation.
The unit performs swing operation vertically in various cycles according to the
temperature airflow.
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 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 and day are set correctly.
*
Page 3
Note:
When using the multi system MXZ-8A140, the temperature cannot be set to
10°C. Even if the temperature is set to 10°C, the air conditioner will operate
at 16°C.
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
3
Press
or
or is blinking.
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 4 “Auto restart
function”.
En-6
● OPERATING INSTRUCTIONS ●
WEEKLY TIMER OPERATION
• A maximum of 4 ON or OFF timers can be set for individual days of the week.
• A maximum of 28 ON or OFF timers can be set for a week.
E.g. : Runs at 24°C from waking up to leaving home, and runs at 27°C from
getting home to going to bed on weekdays.
Runs at 27°C from waking up late to going bed early on weekends.
Setting1 Setting2 Setting3 Setting4
Mon
ON OFF ON OFF
~
Fri
Sat
~
Sun
Note:
The simple ON/OFF timer setting is available while the weekly timer is on. In
this case, the ON/OFF timer has priority over the weekly timer; the weekly timer
operation will start again after the simple ON/OFF timer is complete.
24°C 27°C
6:00 8:30 17:30 22:00
Setting1 Setting2
ON OFF
8:00 21:00
27°C
3
Press , , and to set ON/OFF, time, and temperature.
E.g. : [ON], [6:00]
and [24°C] are
selected.
Pressing
selects ON/OFF timer.
Pressing
deletes timer setting.
* Hold down the button to change the time quickly.
Pressing
adjusts the time.
Pressing
adjusts the temperature.
Press and to continue setting the timer for
other days and/or numbers.
4
Press to complete and transmit the weekly timer setting.
*
which was blink-
ing goes out, and the
current time will be
displayed.
Note:
• Press to transmit the setting information of weekly timer to the indoor
unit. Point the remote controller toward the indoor unit for 3 seconds.
• When setting the timer for more than one day of the week or one number,
does not have to be pressed per each setting. Press once af-
ter all the settings are complete. All the weekly timer settings will be saved.
• Press
controller toward the indoor unit.
to enter the weekly timer setting mode, and press and hold
for 5 seconds to erase all weekly timer settings. Point the remote
Setting the weekly timer
* Make sure that the current time and day are set correctly.
1
Press to enter the weekly timer setting mode.
* blinks.
2
Press and to select setting day and number.
E.g. : [Mon Tue ... Sun]
and [1]are selected.
Pressing selects the day of
the week to be set.
* All days can be selected.
Pressing selects
the setting number.
5
Press to turn the weekly timer ON. ( lights.)
* When the weekly timer is ON, the day of the week whose timer setting
is complete, will light.
Press again to turn the weekly timer OFF. (
goes out.)
Note:
The saved settings will not be cleared when the weekly timer is turned OFF.
Checking weekly timer setting
1
Press to enter the weekly timer setting mode.
* blinks.
2
Press or to view the setting of the particular
day or number.
Press to exit the weekly timer setting.
Note:
When all days of the week are selected to view the settings and a different set-
ting is included among them,
will be displayed.
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.
Front panel
• Use only diluted mild detergents.
• Do not expose parts to direct sunlight, heat, or fi re to dry.
• Do not use water hotter than 50°C.
Air cleaning fi lter
(Electrostatic anti-allergy enzyme fi lter,
option)
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.
all tabs of the air fi lter.
Every year:
• Replace it with a new air cleaning fi lter
for best performance.
• Parts Number MAC-2320FT
• Clean the fi lters regularly for best performance and to
reduce 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.
Install
Pull to remove from the air fi lter
Important
1. Lift the front panel until a “click” is heard.
2. Close the front panel securely and press the
positions indicated by the arrows.
3. Clean the front panel without detaching it
from the unit.
• Wipe with a soft dry cloth. A dedicated soft dry cloth is only provided with
MSZ-EF**VAB type.
• Use the dedicated SOFT DRY CLOTH. Parts Number MAC-1001CL-E
• Do not soak the front panel in water.
Important
• The surface of the indoor unit is easily scratched, so
never rub or hit the unit with something hard. Also,
when installing or removing the front panel, handle it
with care to prevent scratches on it.
• Do not use abrasive cleaner to prevent scratches on the
surface of the indoor unit.
• It is very easy to get fi ngerprints on the surface of the
indoor unit. When fi ngerprints are noticeable, gently
wipe them off with a soft dry cloth.
• When using a commercially available chemical impreg-
nated cloth, follow its instructions.
• Do not leave the front panel open for a prolonged time.
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.
When SWING is selected in
COOL/DRY/FAN mode, the
lower horizontal vane does
not move.
The airfl ow direction changes
during operation.
The direction of the horizontal
vane cannot be adjusted with
the remote controller.
The operation stops for about
10 minutes in the heating
operation.
The unit starts operation by
itself when the main power is
turned on, but hasn’t received
sign from the remote controller.
The two horizontal vanes
touch each other. The horizontal vanes are in an abnormal position. The horizontal
vanes do not return to the
correct “close position”.
In COOL/DRY mode, when the
room temperature reaches near
the set temperature, the outdoor
unit stops, then the indoor unit
operates at low speed.
The indoor unit discolors over
time.
• Is the breaker turned on?
• Is the power supply plug connected?
• Is the ON timer set? Page 6
• Are the horizontal vane and the vertical vane
installed correctly?
• Is the fan guard deformed?
• When the breaker is turned on, the horizontal
vanes’ position will be reset in about a minute.
After the reset has completed, the normal horizontal vanes’ operation resumes. The same is
true in the emergency cooling operation.
• 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.
• It is normal that the lower horizontal vane does
not move when SWING is selected in COOL/
DRY/FAN mode.
• 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 airfl ow
is automatically set to horizontal position to
prevent water from condensing and dripping.
• In the heating operation, if the airfl ow temperature is too low or when defrosting is being
done, the horizontal vane is automatically set
to horizontal position.
• Outdoor unit is in defrost.
Since this is completed in max.10 minutes,
please wait. (When the outside temperature is too
low and humidity is too high, frost is formed.)
• 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 4 .
Perform one of the following:
Turn off and on the breaker. Make sure the horizon-
•
tal vanes move to the correct “close position”.
• Start and stop the emergency cooling operation
and make sure the horizontal vanes move to the
correct “close position”.
• When the room temperature deviates from the
set temperature, the indoor fan starts running
according to the settings on the remote controller.
• 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.
Multi system
The indoor unit which is not
operating becomes warm and
a sound, similar to water fl owing, is heard from the unit.
When heating operation is
selected, operation does not
start right away.
• A small amount of refrigerant continues to
fl ow into the indoor unit even though it is not
operating.
• When operation is started during defrosting of
outdoor unit is done, it takes a few minutes (max.
10 minutes) to blow out warm air.
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.
White smoke is discharged
from the outdoor unit.
• 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.
• In the heating operation, water condensed on
the heat exchanger drips down.
In the heating operation, the defrosting operation makes
•
ice forming on the outdoor unit melt and drip down.
• In the heating operation, vapor generated by the
defrosting operation looks like white smoke.
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Symptom Explanation & Check points
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.
• Are the batteries exhausted? Page 3
• Is the polarity (+, -) of the batteries correct?
Page 3
• Are any buttons on the remote controller of other
electric appliances being pressed?
Does not cool or heat
The room cannot be cooled
or heated suffi ciently.
The room cannot be cooled
suffi ciently.
The room cannot be heated
suffi ciently.
Air does not blow out soon in
the heating operation.
• Is the temperature setting appropriate?
Page 4
• Is the fan setting appropriate? Please change
fan speed to higher setting. Page 5
• Are the fi lters clean? Page 8
• Is the fan or heat exchanger of the indoor unit
clean? Page 8
• 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.
• When the outside temperature is low, the heating
effect may not be suffi cient.
• Please wait as the unit is preparing to blow out
warm air.
Airfl ow
The air from the indoor unit
smells strange.
• Are the fi lters clean? Page 8
• Is the fan or heat exchanger of the indoor unit
clean? Page 8
• The unit may suck in an odor adhering to the
wall, carpet, furniture, cloth, etc. and blow it out
with the air.
Sound
Cracking sound is heard.
“Burbling” sound is heard.
Mechanical sound is heard
from the indoor unit.
The sound of water fl owing
is heard.
Hissing sound is sometimes
heard.
• This sound is generated by the expansion/contraction of the front panel, etc. due to change in
temperature.
• This sound is heard when the outside air is
absorbed 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.
Timer
Weekly timer does not operate according to settings.
The unit starts/stops the
operation by itself.
In the following cases, stop using the air conditioner and consult your dealer.
• When water leaks or drips from the indoor unit.
• When the left 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.
• Is the ON/OFF timer set? Page 6
• Transmit the setting information of the weekly
timer to the indoor unit again. When the information is successfully received, a long beep will
sound from the indoor unit. If information fails to
be received, 3 short beeps will be heard. Ensure
information is successfully received. Page 7
• When a power failure occurs and the main power
turns off, the indoor unit built-in clock will be
incorrect. As a result, the weekly timer may not
work normally.
Be sure to place the remote controller where
the signal can be received by the indoor unit.
Page 3
• Is the weekly timer set? Page 7
WHEN THE AIR CONDITIONER IS NOT
GOING TO BE USED FOR A LONG TIME
INSTALLATION PLACE AND
ELECTRICAL WORK
1
Set to the highest temperature in manual COOL mode,
and operate for 3 to 4 hours. Page 4
• This dries the inside of the unit.
• Moisture in the air conditioner contributes to favorable conditions for
growth of fungi, such as mold.
2
Press
3
Turn off the breaker and/or disconnect the power sup-
to stop the operation.
ply plug.
4
Remove all batteries from the remote controller.
When using the air conditioner again:
1
Clean the air fi lter. Page 8
2
Check that the air inlet and outlet of the indoor and
outdoor units are not blocked.
3
Check that the earth is connected correctly.
4
Refer to the “PREPARATION BEFORE OPERATION”,
and follow the instructions. Page 3
Installation place
Avoid installing the air conditioner in the following places.
• Where there is much machine oil.
• Salty places such as the seaside.
• Where sulfi de gas is generated such as a hot spring.
• Where oil is splashed or where the area is fi lled with oily smoke.
• Where there is high-frequency or wireless equipment.
• Where the air from the outdoor unit air outlet is blocked.
• Where the operation sound or air from the outdoor unit does not bother the
house next door.
The installation location of the outdoor unit should
be at least 3 m away from the antennas for TV sets,
radios, etc. In areas where the reception is weak,
provide greater space between the outdoor unit and
the antenna of the affected device if operation of the air
conditioner interferes with radio or TV reception.
Inverter-type
1 m
or more
Radio
fl uorescent lamp
Keep a space to
prevent the pic-
ture distortion or
the noise.
TV
3 m or
more
100 mm or
more
Wellventilated dry
place
500 mm or
more
wall, etc.
To prevent the effects
of a fl uorescent lamp,
keep as far apart as
possible.
1 m
or more
Cordless
phone or
Portable
phone
Electrical work
• Provide an exclusive circuit for the power supply of the air conditioner.
• Be sure to observe the breaker capacity.
If you have any questions, consult your dealer.
SPECIFICATIONS
Guaranteed operating range
Indoor Outdoor
Upper limit
Cooling
Lower limit
Upper limit
Heating
Lower limit
Note:
1. The MSZ-EF models have no specifi cations for single combination.
These indoor models are only for multi system air conditioner.
As for the specifi cations of multi system, please confi rm your dealer
and/or refer to the catalogue.
32°C DB
23°C WB
21°C DB
15°C WB
27°C DB
—
20°C DB
—
* Note 1.
DB: Dry Bulb
WB: Wet Bulb
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HEAD OFFICE: TOKYO BLDG., 2-7-3, MARUNOUCHI, CHIYODA-KU, TOKYO 100-8310, JAPAN
SG79F596H01
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