Page 1
SPLIT-TYPE AIR CONDITIONERS
INDOOR UNIT
MSZ-AP15VGD MSZ-AP20VGD
OPERATING INSTRUCTIONS
• To use this unit correctly and safely, be sure to read these operating
instructions before use.
For user
English
Page 2
● OPERATING INSTRUCTIONS ●
ENGLISH IS ORIGINAL
CONTENTS
■ SAFETY PRECAUTIONS 1
■ NAME OF EACH PART 4
■ PREPARATION BEFORE OPERATION 5
■ SELECTING OPERATION MODES 6
■ F AN SPEED AND AIRFLOW DIRECTION ADJUSTMENT 7
■ I-SAVE OPERATION 8
■ ECONO COOL OPERATION 8
■ TIMER OPERATION (ON/OFF TIMER) 8
■ NIGHT MODE OPERATION 9
■ WEEKLY TIMER OPERATION 10
■ DEMAND RESPONSE AND INDOOR UNIT OPERATION 11
■ EMERGENCY OPERATION 11
■ AUTO RESTART FUNCTION 11
■ CLEANING 12
■ WHEN YOU THINK THAT TROUBLE HAS OCCURRED 13
■ WHEN THE AIR CONDITIONER IS NOT GOING TO BE USED FOR A LONG TIME 14
■ INSTALLATION PLACE AND ELECTRICAL WORK 14
■ SPECIFICATIONS 14
SAFETY PRECAUTIONS
Meanings of symbols displayed on indoor unit and/or outdoor unit
WARNING
(Risk of fi re)
Read the OPERATING INSTRUCTIONS carefully before operation.
Service personnel are required to carefully read the OPERATING INSTRUCTIONS and INSTALLATION MANUAL before operation.
Further information is available in the OPERATING INSTRUCTIONS, INSTALLATION MANUAL, and the like.
• 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.
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.
This unit uses a fl ammable refrigerant.
If refrigerant leaks and comes in contact with fi re or heating part, it will create harmful gas and there is risk of fi re.
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.
: Risk of fi re.
Do not expose your body directly to cool air for a prolonged
WARNING
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 (R32) 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.
EN-1
Page 3
To use this unit correctly and safely, be sure to read these operating instructions before use.
SAFETY PRECAUTIONS
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. If any refrigerant leakage is found,
stop operations and ventilate the room well and consult your
dealer immediately. If a repair involves recharging the unit with
refrigerant, ask the service technician for details.
• The refrigerant used in the air conditioner is not harmful. Normally,
it does not leak. However, if refrigerant leaks and comes in contact
with fi re or heating part of such a fan heater, kerosene heater, or
cooking stove, it will create harmful gas and there is risk of fi re.
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.
• The appliance shall be stored in a room without continuously
operating ignition sources (for example: open fl ames, an operating
gas appliance or an operating electric heater).
• Be aware that refrigerants may not contain an odour.
• Do not use means to accelerate the defrosting process or to clean
the appliance, other than those recommended by the manufacturer.
• Do not pierce or burn.
The indoor unit must be installed in rooms which exceed the
fl oor space specifi ed. Please consult your dealer.
This appliance is intended to be used by expert or trained users
in shops, in light industry and on farms, or for commercial use
by lay persons.
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.
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.
EN-2
Page 4
● OPERATING INSTRUCTIONS ●
SAFETY PRECAUTIONS
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 earth wire. Improper earthing may cause electric
shock.
CAUTION
Install an earth leakage breaker depending on the installation
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-3
Page 5
NAME OF EACH PART
Indoor unit Remote controller
Front
panel
Air fi lter
Horizontal vane
Air outlet
Outdoor unit
Heat exchanger
Operation
indicator lamp
Remote control
receiving section
Emergency
operation switch
Page 11
Air inlet (back and side)
Refrigerant piping
Drainage hose
Air inlet
Battery replacement indicator
Operation
display section
Temperature
Page 6
buttons
Operation
select button
Page 6
ECONO COOL
button Page 8
i-save button
Page 8
NIGHT MODE
button Page 9
CLOCK
button
Page 5
Page 5
Signal transmitting
section
Distance of signal :
About 6 m
Beep(s) is (are) heard
from the indoor unit
when the signal is
received.
OFF/ON
(stop/operate) button
FAN speed control
button Page 7, 8
VANE control button
Page 7, 8
TIME, TIMER set buttons
Page 5, 8
forward button
backward button
TIME, WEEKLY TIMER
set buttons
RESET button Page 5
Lid
Slide the lid down to open
the remote controller. Slide
it down further to get to the
weekly timer buttons.
Page 5, 10
Outdoor units may be diff erent in appearance.
Air outlet
Drain outlet
Remote controller holder
• Install the remote
controller holder in a
place where the signal
can be received by the
indoor unit.
• When the remote
controller is not used,
place it in this holder.
Only use the remote controller provided
with the unit.
Do not use other remote controllers.
If 2 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-4
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● OPERATING INSTRUCTIONS ●
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 Setting current time
4.
Press RESET.
Press CLOCK.
1.
Remove the front lid.
Insert the negative
2.
pole of AAA
alkaline batteries fi rst.
Install the front lid.
3.
Note:
• 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.
1.
Press CLOCK again.
4.
Note:
• Press CLOCK gently using a thin instrument.
Note:
How to set remote controller exclusively for a particular indoor unit
A maximum of 4 indoor units with wireless remote controllers can be used in
a room.
To operate the indoor units individually with each remote controller, assign a
number to each remote controller according to the number of the indoor unit.
This setting can be set only when all the following conditions are met:
• The remote controller is powered OFF.
(1) Hold down
pairing mode.
(2) Press
Each press of
2 → 3 → 4.
(3) Press button to complete the pairing setting.
After you turn the breaker ON, the remote controller that fi rst sends a signal
to an indoor unit will be regarded as the remote controller for the indoor unit.
Once they are set, the indoor unit will only receive the signal from the as-
signed remote controller afterwards.
button on the remote controller for 2 seconds to enter the
button again and assign a number to each remote controller.
button advances the number in the following order: 1 →
Press the DAY button
3.
to set the day.
Press either the TIME button
2.
or the TIMER buttons to set
the time.
Each press changes the clock
1 minute forward/backward (10
minutes when pressed longer).
EN-5
Page 7
SELECTING OPERATION MODES
1
Press to start the operation.
2
Press to select operation mode. Each press
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.
• The same setting is selected the next time by simply pressing
.
DRY mode
Dehumidify your room. The room may be cooled slightly.
Temperature cannot be set during DRY mode.
HEAT mode
Enjoy warm air at your desired temperature.
FAN mode
Circulate the air in your room.
Note:
After COOL/DRY mode operation, it is recommended to operate in the
FAN mode to dry inside the indoor unit.
Note:
Multi system operation
Two or more indoor units can be operated by one outdoor unit. When several
indoor units are operated simultaneously, cooling and heating operations cannot be done at the same time. When COOL is selected with one unit and HEAT
with another or vice versa, the unit selected last goes into standby mode.
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
Standby mode (only during multi
system operation)
Lit Blinking Not lit
About 2°C or more
away from set tem-
perature
About 1 to 2°C from
set temperature
—
AUTO mode (Auto change over)
The unit selects the operation mode according to the diff erence between the
room temperature and the set temperature. During AUTO mode, the unit
changes mode (COOL↔HEAT) when the room temperature is about 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.
EN-6
Page 8
● OPERATING INSTRUCTIONS ●
FAN SPEED AND AIRFLOW DIRECTION ADJUSTMENT
Up-down Airflow direction
Press to select airfl ow direction. Each press
changes airfl ow direction in the following order:
(AUTO) (1) (2) (3) (4) (5) (SWING)
Fan speed
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/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.
(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.
• Two short beeps are heard from the indoor unit when set to AUTO.
• Always use the remote controller when changing the direction of air-
• When the breaker is turned on, the horizontal vanes’ position will be
• When the horizontal vanes seem to be in an abnormal position, see
DRY:horizontal position. HEAT:position (5).
COOL/DRY, and the lower position for HEAT. If the lower
position 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.
flow. Moving the horizontal vanes with your hands causes them to malfunction.
reset in about a minute, then the operation will start. The same is true
in the emergency cooling operation.
page 13 .
Left-right Airflow direction
■ To change the horizontal airfl ow direction.
Move the vertical vane manually before starting operation.
Note:
If the vertical vanes are adjusted while the unit is not operating, be sure to return
the horizontal vanes to the original closed position.
EN-7
Page 9
I-SAVE OPERATION
ECONO COOL OPERATION
• A simplified set back function enables to recall the preferred (preset) setting
with a single push of the
back to the previous setting in an instance.
• i-save operation cannot be set on the weekly timer.
1
Press during COOL, ECONO COOL, NIGHT
MODE operation, 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 canceled when the MODE button is pressed.
button. Press the button again and you can go
Note:
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.
Swing airfl ow (change of air fl ow) makes you feel cooler than stationary airfl ow.
The set temperature and the airfl ow direction are automatically changed by the
microprocessor. It is possible to perform cooling operation with keeping comfort.
As a result energy can be saved.
Press during COOL mode page 6 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 canceled when the VANE button is
pressed.
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.
*
2
Press (Forward) and (Backward) to set the
time of timer.
Each press changes the set time 10 minutes forward/backward.
• Set the timer while
or is blinking.
Page 5
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 11 “Auto restart
function”.
EN-8
Page 10
● OPERATING INSTRUCTIONS ●
NIGHT MODE OPERATION
NIGHT MODE operation changes the brightness of the operation
indicator, disables the beep sound and limits the noise level of the
outdoor unit.
Press during operation to activate NIGHT
MODE operation.
• The operation indicator lamp dims.
• The beep sound will be disabled except that emitted when the operation is started or stopped.
• Noise level of the outdoor unit will be lower than that mentioned in
SPECIFICATIONS.
Press again to cancel NIGHT MODE operation.
Note:
• Noise level of the outdoor unit may not change after start-up of the unit, during the protection operation, or depending on other operating conditions.
• The fan speed of the indoor unit will not change.
The operation indicator lamp will be hard to be seen in a bright room.
•
•
Operating POWERFUL operation during NIGHT MODE operation will increase
the noise level of the outdoor unit.
•
Noise level of the outdoor unit will not decrease during Multi system operation.
EN-9
Page 11
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.
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.
Setting1 Setting2 Setting3 Setting4
Mon
Sun
ON OFF ON OFF
~
Fri
Sat
~
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.
* The temperature can be set between 16°C and 31°C at weekly timer.
Pressing
adjusts the time.
Pressing
adjusts the tem-
perature.
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.
*
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.
blinks.
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 diff erent set-
ting is included among them,
will be displayed.
EN-10
Page 12
● OPERATING INSTRUCTIONS ●
DEMAND RESPONSE AND INDOOR UNIT OPERATION (DEMAND TYPE ONLY)
Demand response
This unit has the demand response capability which is compliant with AS/NZS 4755.3.1.
To activate this function, you need to make a contract with remote agents such as electric supply company, then this unit should be connected to the demand response
enabling devise (DRED). For further information, consult your dealer.
The demand response represents the automated alteration of an electrical product’s normal mode of operation in response to an initiating signal originating from or defi ned
by a remote agent.
This unit supports 3 Demand Response Modes (DRMs).
DRM Description of operation in this mode
DRM 1
DRM 2
DRM 3
Note:
• DRM is automatically activated or released according to the signals from DRED.
DRM cannot be invalidated or changed manually.
• You might feel this unit does not suffi ciently perform cooling or heating operation during DRM.
• Operation settings can be changed as usual with the remote controller during DRM.
However, you might not feel cool or warm enough as DRM is prioritized.
• The indication for the demand response will be functioning only when the outdoor unit which is compatible with the demand response is connected.
Compressor off
The air conditioner does not perform cooling or heating operation during the demand response event.
The air conditioner continues to perform cooling or heating
operation during the demand response event, but the electrical energy consumed by the air conditioner in a half hour
period is not more than 50% of the total electrical energy
that would be consumed if operating at the rated capacity in
a half hour period.
The air conditioner continues to perform cooling or heating
operation during the demand response event, but the electrical energy consumed by the air conditioner in a half hour
period is not more than 75% of the total electrical energy
that would be consumed if operating at the rated capacity in
a half hour period.
Operation indicator lamp
Lit Not lit
Upper lamp is lit.
Lower lamp blinks.
2.5 sec 2.5 sec0.5 sec
2.5 sec
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 gradu-
ally 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
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-11
Page 13
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.
• Use only diluted neutral detergents.
• Do not use a scrubbing brush, a hard sponge, or the like.
Air 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.
• Do not soak or rinse the horizontal vane.
• Do not use water hotter than 50°C.
• Do not expose parts to direct sunlight, heat, or fi re to dry.
• Do not apply excessive force on the fan as it may cause cracks or breakage.
Important
• 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.
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.
EN-12
Page 14
● 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 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 indoor unit discolors over
time.
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.
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.
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 8
• 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 instruc-
tions 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
airfl ow is automatically set to upward 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 11
• Although plastic turns yellow due to the infl uence of some factors such as ultraviolet light
and temperature, this has no eff ect on the
product functions.
• 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.
• 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.
• Are the batteries exhausted? Page 5
• Is the polarity (+, -) of the batteries correct?
Page 5
• Are any buttons on the remote controller of
other electric appliances being pressed?
Symptom Explanation & Check points
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.
Airfl ow
The air from the indoor unit
smells strange.
Sound
Cracking sound is heard. • This sound is generated by the expansion/
“Burbling” sound is heard. • This sound is heard when the outside air is
Mechanical sound is heard
from the indoor unit.
The sound of water fl owing
is heard.
Hissing sound is sometimes
heard.
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 aff ected device.
• When an abnormal sound is heard.
• When any refrigerant leakage is found.
• Is the temperature setting appropriate?
Page 6
• Is the fan setting appropriate? Please change
fan speed to High or Super High.
Page 7
• Are the fi lters clean? Page 12
• 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?
•
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.
• When a ventilation fan or a gas cooker is
used in a room, the cooling load increases,
resulting in an insuffi cient cooling eff ect.
• When the outside temperature is high, the
cooling eff ect may not be suffi cient.
• When the outside temperature is low, the
heating eff ect may not be suffi cient.
• Please wait as the unit is preparing to blow
out warm air.
• Are the fi lters clean? Page 12
• 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.
contraction of the front panel, etc. due to
change in temperature.
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.
• Is the ON/OFF timer set? Page 8
• 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 10
• 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 4
• Is the weekly timer set? Page 10
EN-13
Page 15
WHEN THE AIR CONDITIONER IS NOT
GOING TO BE USED FOR A LONG TIME
INSTALLATION PLACE AND
ELECTRICAL WORK
1
Operate by COOL mode with the highest temperature
set or FAN mode for 3 to 4 hours. Page 6
• This dries the inside of the unit.
• Moisture in the air conditioner contributes to growth of fungi, such as
mold.
2
Press to stop the operation.
3
Turn off the breaker and/or disconnect the power supply plug.
4
Remove all batteries from the remote controller.
When using the air conditioner again:
1
Clean the air fi lter. Page 12
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 5
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 hot spring, sewage, waste water.
• Where oil is splashed or where the area is fi lled with oily smoke (such as cooking areas and factories, in which the properties of plastic could be changed
and damaged).
• 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 bothers the house next door.
•
• The mounting height of indoor unit 1.8 m to 2.3 m is recommended. If it is
impossible, please consult your dealer.
• Do not operate the air conditioner during interior construction and fi nishing
work, or while waxing the fl oor. Before operating the air conditioner, ventilate
the room well after such work is performed. Otherwise, it may cause volatile
elements to adhere inside the air conditioner, resulting in water leakage or
scattering of dew.
• The indoor unit must be installed in rooms which exceed the fl oor space specifi ed. Please consult your dealer.
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 aff ected
device if operation of the air conditioner
interferes with radio or TV reception.
For the optimum ef-
fi ciency and to extend
the life time of using,
the outdoor unit
should be installed in
a well-ventilated dry
place.
100 mm or
more
TV
3 m or more
200 mm or
more
wall, etc.
To prevent the eff ects
of a fl uorescent lamp,
keep as far apart as
possible.
1 m
or more
Cordless
phone or
Portable
phone
1 m
or
more
Radio
Inverter-type
fl uorescent lamp
Keep a space
to prevent
the picture
distortion or
the noise.
SPECIFICATIONS
Guaranteed operating range
Upper limit
Cooling
Lower limit
Upper limit
Heating
Lower limit
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.
Indoor Outdoor
32°C DB 46°C DB
23°C WB —
21°C DB -10°C DB
15°C WB —
27°C DB 24°C DB
— 18°C WB
20°C DB -15°C DB
— -16°C WB
DB: Dry Bulb
WB: Wet Bulb
EN-14
Page 16
HEAD OFFICE: TOKYO BUILDING, 2-7-3, MARUNOUCHI, CHIYODA-KU, TOKYO 100-8310, JAPAN
JG79Y725H01
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