OPERATING MANUAL
MODEL:
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OPERATING MANUAL
AIR CONDITIONER (Duct type)
Before using this product, read these instructions thoroughly
and keep this manual for future reference.
BEDIENUNGSANLEITUNG
KLIMAANLAGE (Für Luftkanalsysteme)
Bevor Sie dieses Produkt verwenden, lesen Sie diese
Anweisungen sorgfältig durch und bewahren Sie diese
Anleitung für späteres Nachschlagen auf.
MODE D’EMPLOI
CLIMATISEUR (Type conduit)
Avant d'utiliser ce produit, veuillez lire attentivement ces
instructions. Conservez ce manuel pour référence future.
MANUAL DE FUNCIONAMIENTO
ACONDICIONADOR DE AIRE (Tipo ducto)
Antes de utilizar el producto, lea estas instrucciones detenida-
mente y conserve este manual para consultarlo en el futuro.
MANUALE DI ISTRUZIONI
CONDIZIONATORE D'ARIA (Tipo di condotto)
Prima di utilizzare l'apparecchio, leggere attentamente
le presenti istruzioni e conservare il manuale per poterlo
consultare il futuro.
ΕΓΧΕΙΡΙΔΙΟ ΛΕΙΤΟΥΡΓΙΑΣ
ΚΛΙΜΑΤΙΣΤΙΚΟ (Τύπος αγωγού)
Προτού χρησιμοποιήσετε το προϊόν, διαβάστε προσεκτικά τις
παρούσες οδηγίες και φυλάξτε το παρόν εγχειρίδιο, ώστε να
μπορείτε να ανατρέχετε σε αυτό στο μέλλον.
MANUAL DE FUNCIONAMENTO
AR CONDICIONADO (Tipo conduta)
Antes de utilizar este produto, leia atentamente estas instruções
e guarde este manual para referência futura.
EnglishDeutschFrançaisEspañolItalianoEλληvIkάPortuguêsРусскийTürkçe
PART No. 9383813009
РУКОВОДСТВО ПО ЭКСПЛУАТАЦИИ
КОНДИЦИОНЕР ВОЗДУХА (Канального типа)
Перед эксплуатацией устройства внимательно
ознакомьтесь с данным руководством и сохраняйте его для
использования в будущем.
KULLANIM KILAVUZU
KLİMA (Kanal tp)
Bu ürünü kullanmadan önce verlen talmatları dkkatlce okuyun
ve daha sonra tekrar faydalanmak üzere saklayın.
[Original instructions]
Contents
1. SAFETY PRECAUTIONS .......................................... 1
2. BASIC OPERATIONS ............................................... 2
3. AIRFLOW SETTINGS ............................................... 3
3.1. Fan speed setting ............................................. 3
4. TIMER OPERATIONS ............................................... 3
4.1. On timer or Off timer ......................................... 3
4.2. Weekly timer ..................................................... 3
4.3. Program timer ................................................... 3
4.4. Sleep timer ....................................................... 3
4.5. Temperature Set Back timer ............................ 4
5. ENERGY SAVING OPERATIONS ............................ 4
5.1. Economy operation .......................................... 4
5.2. Fan control for energy saving ........................... 4
6. OTHER OPERATIONS ............................................. 4
6.1. 10 °C Heat operation ........................................ 4
7. CLEANING AND CARE ............................................. 4
8. GENERAL INFORMATION ....................................... 5
9. OPTIONAL PARTS ................................................... 5
9.1. Remote control ................................................. 5
9.2. Multiple remote controller ................................. 5
9.3. Group control .................................................... 5
9.4. Multi-type Air Conditioner ...................................6
9.5. Simultaneous Multi Air Conditioner ................. 6
10. TROUBLESHOOTING .............................................. 6
1. SAFETY PRECAUTIONS
To prevent personal injury or property damage, read this section
carefully before you use this product, and be sure to comply
with the following safety precautions.
Incorrect operation due to failure to follow the instructions may
cause harm or damage, the seriousness of which is classifi ed
as follows:
WARNING
This mark warns of death or serious injury.
CAUTION
This mark warns of injury or damage to property.
This mark denotes an action that is PROHIBITED.
CAUTION
This symbol shows that the operating manual should
be read carefully.
CAUTION
This symbol shows that a service personnel should
be handling this equipment with reference to the
installation manual.
CAUTION
This symbol shows that information is available such
as the operating manual or installation manual.
WARNING
• The appliance shall be installed, operated and stored
in a room with a fl oor area larger than X m².
Amount of refrigerant charge
M (kg)
M ≤ 1.22 -
1.22 < M ≤ 1.23 1.45
1.23 < M ≤ 1.50 2.15
1.50 < M ≤ 1.75 2.92
1.75 < M ≤ 2.0 3.82
2.0 < M ≤ 2.5 5.96
2.5 < M ≤ 3.0 8.59
3.0 < M ≤ 3.5 11.68
3.5 < M ≤ 4.0 15.26
(IEC 60335-2-40)
• This product contains no user-serviceable parts.
Always consult authorized service personnel for
repairing, installation, and relocation of this product.
Improper installation or handling will cause leakage,
electric shock, or fi re.
• In the event of a malfunction such as burning smell,
immediately stop operation of the air conditioner, and
disconnect all the power supply by turning off the
electrical breaker or disconnecting the power plug.
Then consult authorized service personnel.
• Take care not to damage the power supply cable.
If it is damaged, it should be replaced only by the
authorized service personnel in order to avoid a
hazard.
• In the event of refrigerant leakage, be sure to keep
away from fi re or any fl ammables, and consult
authorized service personnel.
• In the event of a thunder storm or any prior sign
of a lightning strike, turn off the air conditioner via
the remote controller, and refrain from touching the
product or the power source to prevent any electrical
hazards.
Minimum room area
X (m2)
This mark denotes an action that is COMPULSORY.
Explanation of symbols displayed on the indoor unit or outdoor
unit.
WARNING
This symbol shows that this product uses a fl ammable
refrigerant. If the refrigerant is leaked and exposed to
an external ignition source, there is a risk of fi re.
En-1
WARNING
• This product 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).
• This product shall be stored in a well-ventilated area.
• Be aware that refrigerants may not contain an odour.
• This product shall be stored so as to prevent
mechanical damage from occurring.
• Disposing of the product shall be done properly, in
compliance with national or regional regulations.
• This product 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 this product by a
person responsible for their safety.
Children should be supervised to ensure that they do
not play with this product.
• Do not move this product by holding the indoor unit pipes.
(The stress applied to the pipe joints may cause the
fl ammable gas to leak during operation).
• Do not install the unit in area fi lled with mineral oil
such as a factory or area containing a large amount of
splashed oil or steam such as a kitchen.
• Do not start or stop the operation of this product by
turning on or off the circuit breaker.
• Do not use fl ammable gases near this product.
• Do not expose yourself directly to the cooling airfl ow
for many hours.
• Do not insert your fi ngers or any other objects into
outlet port or inlet grille.
• Do not operate with wet hands.
• Do not use means to accelerate the defrosting
process or to clean this product, other than those
recommended by the manufacturer.
• Do not pierce or burn.
CAUTION
• Provide occasional ventilation during use.
• Always operate this product with air fi lters installed.
• Ensure that any electronic equipment is at least 1 m (40
in) away from this product.
• Disconnect all the power supply when not using this
product for extended periods.
• After a long period of use, ensure to get the mounting
of the indoor unit checked to prevent this product from
falling down.
• The airfl ow direction and the room temperature should
be carefully considered when you use this product in a
room with infants, children, elderly or sick persons.
• Keep the surroundings of the outdoor unit clean and
tidy, and do not place items around it. Any objects
blocking or entering from the outlet ports may cause
product malfunction.
• Do not direct the airfl ow at fi replaces or heating apparatus.
• Do not block or cover the intake grille and the outlet port.
• Do not apply any heavy pressure to radiator fi ns.
• Do not climb on, place objects on, or hang objects
from this product.
CAUTION
• Do not place any other electrical products or
household belongings under this product. Dripping
condensation from this product might get them wet,
and may cause damage or malfunction of your
property.
• Do not expose this product directly to water.
• Do not use this product for preservation of food, plants,
animals, precision equipment, art work, or other objects.
This may cause quality deterioration of those items.
• Do not expose animals or plants to the direct airfl ow.
• Do not drink the drainage from the air conditioner.
• Do not pull the power supply cable.
• Do not touch the aluminum fi ns of heat exchanger
built-in this product to avoid personal injury when you
install or maintain the unit.
• Do not stand on unstable steps when operating or
cleaning this product. It may overturn and can cause
injury.
2. BASIC OPERATIONS
NOTES:
The operation mode and the temperature setting range are
shown in the following table.
The air conditioner selects the appropriate operation mode
(Cooling or Heating) according to your room’s present
temperature.
When Auto mode is fi rst selected, the fan will operate at low speed for
about a few minutes, during which time the indoor unit detects the room
conditions and selects the operation mode.
When the air conditioner has adjusted your room’s temperature to near
the thermostat setting, it will begin monitor operation.
In the monitor operation mode, the fan will operate at low speed. If the
room temperature subsequently changes, the air conditioner will once
again select the appropriate operation (Heating, Cooling) to adjust the
temperature to the value set in the thermostat.
If the mode automatically selected by the unit is not what you wish,
select one of the mode operation (Heating, Cooling, Dry, Fan).
For detailed instructions on how to operate, please refer to the
operating manual of the remote controller.
Operation mode Temperature setting range
Auto 18.0 - 30.0 °C
Cooling 18.0 - 30.0 °C
Dry 18.0 - 30.0 °C
Fan You cannot set the temperature.
Heating 16.0 - 30.0 °C
■Auto mode
Room temperature Operation
Higher than the setting temperature Cooling
Close to the setting temperature Determined by outdoor
Lower than the setting temperature Heating
Defi ned temperature in temperature setting
temperature
Cooling mode
Determined by
outdoor temperature
Heating mode
En-2
■Cooling mode
Use to cool your room.
NOTES:
• Set the temperature lower than the current room temperature,
otherwise, the fan alone will operate.
• The indoor unit fan may stop from time to time because of the Fan
control for energy saving (refer to page 4).
■Dry mode
Use for gently cooling while dehumidifying your room.
NOTES:
• You cannot heat the room.
• Set the temperature lower than the current room temperature,
otherwise, the operation will not operate.
• The unit will operate at low speed in order to adjust room humidity.
The indoor unit’s fan may stop from time to time. Also, the fan may
operate at very low speed when adjusting room humidity.
• The fan speed cannot be changed manually.
■Fan mode
Use to circulate the air throughout your room.
NOTES:
You cannot set the temperature.
■Heating mode
Use to warm your room.
NOTES:
• Set the temperature higher than the current room temperature,
otherwise, the operation will not operate.
• At the beginning of the operation, the indoor unit fan rotates at very
low speed for 3-5 minutes to warm the internal indoor unit. After the
period, the indoor unit fan will switch to the selected fan speed.
• When the room temperature is very low, frost may form on the
outdoor unit, and its performance may be reduced. In order to
remove such frost, the unit will automatically enter the defrost
cycle from time to time. During Automatic defrosting operation, the
Heating operation will be interrupted.
• After the start of Heating operation, it takes sometime before the
room gets warmer.
3. AIRFLOW SETTINGS
NOTES:
For detailed instructions on how to operate, please refer to the
operating manual of the remote controller.
3.1. Fan speed setting
The fan speed changes as follows.
Auto High Med Low Quiet
When Auto is selected, the fan speed is automatically adjusted
according to the operation mode.
Heating: The fan will operate at very low speed when the
Cooling: As the room temperature approaches that of the set
Fan: The fan runs at low fan speed.
The fan will operate at a very low setting during monitor operation and
at the start of the heating mode.
When Quiet is selected, Super Quiet operation begins. The indoor unit’s
airfl ow will be reduced for quieter operation.
● The Super Quiet operation cannot be used during the Dry mode. (The
same is true when the Dry mode is selected during the Auto mode
operation.)
● During the Super Quiet operation, heating and cooling performance
will be reduced somewhat. If the room does not warm up/ cool down
when using the Super Quiet operation, please adjust the indoor unit’s
fan speed.
temperature of the air issued from the indoor unit is low.
temperature, the fan speed becomes slower.
4. TIMER OPERATIONS
NOTES:
NOTES:
The On timer starts the operation at your desired time.
The Off timer stops the operation at your desired time.
NOTES:
The Weekly timer enables you to set operation schedules up to 4 setting
for each day of the week.
Use the Day off setting to switch off timed operation for a selected day
in the coming week. Because all days can be set together, the weekly
timer can be used to repeat the timer settings for all of the days.
Temperature setting range
NOTES:
The Program timer operates as the combination of the On timer and Off
timer.
You can set the Program timer only within a span of 24 hours.
NOTES:
The Sleep timer supports your comfortable sleep by moderating the air
conditioner operation gradually.
The time setting of the Sleep timer changes as follows:
During the Sleep timer operation, the setting temperature changes as
the following fi gure.
After the set time has elapsed, the air conditioner operation turns off .
In simultaneous multi connection, this function by using the
wireless remote controller cannot be used.
4.1. On timer or Off timer
Depending on the remote controller, this function may not be
available.
4.2. Weekly timer
This function is available only by the wired remote controller.
Auto, Cooling,
or Dry mode:
Heating mode: 10 or 16-30 °C
• The operation modes will be the same as the mode at the last
time operation was stopped. So Cooling → Heating → Cooling →
Heating type of operations cannot be set automatically.
• If you set the On timer and Off timer on the same time, the On timer
will work.
• If two On timers are set on the same time, the air conditioner will run
in the order of the program number.
• You cannot the Weekly timer and the other timers simultaneously
If you use the On/Off timer, the Program timer, or the Sleep timer
while the Weekly timer is activated, the Weekly timer will be
deactivated.
In such a case, activate the Weekly timer after the other timer
fi nishes.
18-30 °C
*Even if you set to 10, 16, or 17 °C, the air
conditioner will run at 18 °C.
4.3. Program timer
This function is available only when using the wireless remote
controller.
4.4. Sleep timer
This function is available only when using the wireless remote
controller.
1 hour
9H
00M
hours
Set time
1 °C
2 °C
0H
30M
(30 min.)
In Heating mode
30 min.
1 hour
Set time
2H
00M
1H
00M
1 °C 2 °C 3 °C 4 °C
1.5 hour
3H
00M
Set
temperature
5H
00M
7H
00M
In Cooling or Dry mode
En-3
4.5. Temperature Set Back timer
The Temperature Set Back timer changes the temperature setting for
day of the week.
The temperature setting range is the same as the range of the operation
mode.
28 °C
Set Back temperature
Normal temperature
NOTES:
• The Temperature Set Back timer only changes the set temperature,
it cannot be used to start or stop air conditioner operation.
• The Temperature Set Back timer can be set to operate up to 2 times
per day but only 1 temperature setting can be used.
• The Temperature Set Back timer can be used together with the On,
Off , and Weekly timer.
ON
24 °C 24 °C
OFF
5. ENERGY SAVING OPERATIONS
5.1. Economy operation
6. OTHER OPERATIONS
6.1. 10 °C Heat operation
NOTES:
• This function is available only by wireless remote controller.
• In simultaneous multi connection, this function by using the wireless
remote controller cannot be used.
10 °C Heat operation maintains the room temperature at 10 °C
so as to prevent the room temperature to drop too low.
NOTES:
• When the room temperature is warm enough, This operation will not
be performed.
• In case of multi-type air conditioner, if other indoor unit is used
for heating, the temperature of the room where the 10 °C Heat
operation is applied will rise. When using the 10 °C Heat operation,
we recommend all indoor units should be run under the 10 °C Heat
operation.
7. CLEANING AND CARE
It saves more electricity than other operation modes by changing the set
temperature to a moderate setting.
Operation
mode
Cooling/Dry
Heating
NOTES:
• In the Cooling, Heating, or Dry mode, the maximum output of this
operation is approximately 70 % of usual operation. If the room is
not cooled or heated well during the Economy operation, select
normal operation.
• This operation cannot be performed during the temperature
monitoring by the Auto mode.
• In case of multi-type air conditioner, the Economy operation mode is
only available for the set indoor unit.
The room temperature will be few degrees higher than
the set temperature
The room temperature will be few degrees lower than
the set temperature
Setting details
5.2. Fan control for energy saving
In the Cooling or Dry operation, when the room temperature reaches the
set temperature, the indoor unit fan rotates intermittently to save power.
This function is activated at the time of purchase.
To deactivate this function, refer to the operation manual of the remote
controller.
Even if the setting is changed, if the fan speed is set to Auto in Cooling
or Dry mode, this function still works to suppress the diff usion of
circulated indoor humidity.
CAUTION
• Before cleaning the indoor unit, be sure to turn it off
and disconnect all the power supply.
• The fan operates at high speed inside the unit, and
could result in personal injury.
• If the fi lter cleaning involves high-place work, please
consult the professional technical servicepersonnel.
• Do not expose the indoor unit to liquid insecticides or
hair sprays.
When cleaning the unit, do not use water hotter than 40 °C,
harsh abrasive cleansers, or volatile agents like benzene or
thinner.
Cleaning air fi lter
● Remove the dust from the air fi lters by vacuuming or washing
them. After washing, allow the air fi lters to dry thoroughly in an area
protected from sunlight.
● Dust can be cleaned from the air fi lter either with a vacuum cleaner,
or by washing the fi lter in a solution of mild detergent and warm water.
If you wash the fi lter, be sure to allow it to dry thoroughly in a shady
place before reinstalling.
● If dirt is allowed to accumulate on the air fi lter, airfl ow will be reduced,
lowering operating effi ciency and increasing noise.
After extended non-use of the unit
If you do not use this product for 1 month or more, perform the Fan
mode operation for half a day to dry the internal parts thoroughly before
you perform normal operation.
Additional inspection
After long period of use, accumulated dust inside the indoor unit may
reduce the product performance even if you have maintained the unit
with instructed daily care or cleaning procedures written in this manual.
In such a case, a product inspection is recommended.
For more information, consult authorized service personnel.
En-4
Filter indicator reset (Special setting)
This function can be used if set correctly during installation. Please
consult authorized service personnel in order to use this function.
1.
Clean the air fi lter when the fi lter indicator appears.
2.
After cleaning, reset the fi lter indicator.
* For detailed instructions on how to operate, please refer to the
operating manual of the remote controller.
8. GENERAL INFORMATION
■Inverter
On start-up, the air conditioner will operate at maximum capacity to
bring the room quickly down to desired temperature.
Once the temperature in the room begins to achieve the set
temperature, the air conditioner will reduce its capacity and energy
usage to the minimum capacity and input ratings.
■Heating performance
This air conditioner operates on the heat-pump principle, absorbing
heat from air outdoors and transferring that heat to the indoor unit. As a
result, the operating performance is reduced as outdoor air temperature
drops.
If you feel that the heating performance is insuffi cient, we recommend
you to use this air conditioner in conjunction with other kinds of heating
appliance.
Please consult with your installation technician to ensure the unit is
correctly sized for the room space required.
Heat-pump air conditioners heat your entire room by recirculating air
throughout the room, with the result that some time may be required
after fi rst starting the air conditioner until the room is heated.
■Indoor unit temperature and humidity range
Permissible ranges of temperature and humidity are as follows:
Indoor temperature Cooling/Dry [°C] 18 to 32
Heating [°C] 16 to 30
Indoor humidity [%] 80 or less *
*1) If the air conditioner is used continuously for many hours, water may
condense on the surface and drip.
• If the unit is operated under the conditions except the permissible
temperature range, the air conditioner operation may stop because
of the automatic protection circuit working.
• Depending on the operating conditions, the heat exchanger may
freeze, causing water leakage or other malfunction. (in the Cooling
or Dry mode).
1)
■When indoor and outdoor temperatures are
high
When both indoor and outdoor temperatures are high during use of the
Heating mode, the outdoor unit’s fan may stop at times.
■Low ambient cooling
When the outdoor temperature drops, the outdoor unit’s fans may switch
to low speed, or one of the fans may stop intermittently.
■Other informations
• Do not use the air conditioner for any purpose other than room
cooling/dry, room heating or fan.
• For the permissible ranges of temperature and humidity for the
outdoor unit, refer to the outdoor unit installation manual.
• During the Heating mode, the top of the indoor unit may become
warm, but this is due to the fact that coolant is circulated through the
indoor unit even when it is stopped; it is not a malfunction.
■ Automatic defrosting operation
When outdoor temperature is very low with high humidity, frost may
form on the outdoor unit during the Heating operation, and it could
reduce the operating performance of the product.
For frost protection, a microcomputer-controlled automatic defrost
function is equipped in this air conditioner.
If frost forms, the air conditioner will temporarily stop, and defrost circuit
will operate briefl y (maximum of 15 minutes.)
If frost forms on the outdoor unit after the Heating operation, the outdoor
unit will stop automatically after it operates for a few minutes. Then the
automatic defrosting operation starts.
If you set to the Heating operation during the Automatic defrosting
operation, the Automatic defrosting operation will continue. The Heating
operation will begin after completion of defrosting. As a result, It may
take some time before warm air is emitted.
■Hot start
The indoor unit prevents cold drafts when the Heating operation begins.
The indoor unit fan will not operate or it will operate at a very low speed
until the heat exchanger reaches the set temperature.
■ Auto-restart function
In Event of Power Interruption
Should the power supply to the air conditioner be interrupted by a power
failure, the air conditioner will restart automatically in the previously
selected mode once the power is restored.
■Malfunctions caused by other electrical
devices
Use of other electrical appliances such as an electric shaver or nearby
use of a wireless radio transmitter may cause the malfunction of the air
conditioner.
If you encounter such a malfunction, disconnect the power supply once.
Then reconnect it, and resume operation by using the remote controller.
9. OPTIONAL PARTS
9.1. Remote control
The remote controller is optional. You can select from the
following types of remote control.
- Wireless remote controller
- Wired remote controller
- Wireless LAN control
To check the available model of remote controller, please consult
authorized service personnel.
NOTES:
You can use both wireless and wired remote controller together.
However, some functions of the wireless remote controller may be
restricted.
You can connect two wired remote controllers to one air conditioner.
Either remote controller can control the air conditioner.
However, the timer functions cannot be used by the secondary unit.
One wired remote controller can control up to 16 air conditioners. All of
the air conditioners will be operated with the same settings.
You cannot use group control and wireless LAN control together.
depending on the remote control, some function may be
restricted. Please refer to the operating manual of the remote
controller or WLAN adapter for details.
9.2. Multiple remote controller
9.3. Group control
En-5
9.4. Multi-type Air Conditioner
NOTES:
Depending on model, this function cannot be used. For details,
please consult authorized service personnel.
This indoor unit can be connected to a multi-type outdoor unit. The
multi-type air conditioner allows multiple indoor units to be operated in
multiple locations. The indoor units may be operated simultaneously, in
accordance with their respective output.
Simultaneous Use of Multiple Units
● When using a multi-type air conditioner, the multiple indoor units can
be operated simultaneously, but when 2 or more indoor units of the
same group are operated simultaneously, the heating and cooling
effi ciency will be less than when a single indoor unit is used alone.
Accordingly, when you wish to use more than 1 indoor unit for cooling
at the same time, the use should be concentrated at night and other
times when less output is required. In the same way, when multiple
units are used simultaneously for heating, it is recommended that they
be used in conjunction with other auxiliary space heaters, as required.
● Seasonal and outdoor temperature conditions, the structure of
the rooms and the number of persons present may also result in
diff erences of operating effi ciency. We recommend that you try various
operating patterns in order to confi rm the level of heating and cooling
output provided by your units, and use the units in the way that best
matches your family's lifestyle.
● If you discover that 1 or more units delivers a low level of cooling or
heating during simultaneous operation, we recommend that you stop
simultaneous operation of the multiple units.
● Operation cannot be done in the following diff erent operating modes.
Heating mode and Cooling mode (or Dry mode)
Heating mode and Fan mode
● Operation can be done in the following diff erent operating modes.
Cooling mode and Dry mode
Cooling mode and Fan mode
Dry mode and Fan mode
● The operating mode (Heating mode or Cooling (Dry) mode) of the outdoor unit will be determined by the operating mode of the indoor unit
that was operated fi rst. If the indoor unit was started in the Fan mode,
the operating mode of the outdoor unit will not be determined.
For example, if indoor unit (A) was started in the Fan mode and then
indoor unit (B) was then operated in the Heating mode, indoor unit (A)
would temporarily start operation in the Fan mode but when indoor
unit (B) started operating in the Heating mode, indoor unit (A) would
go into standby mode. Indoor unit (B) would continue to operate in the
Heating mode.
9.5. Simultaneous Multi Air Conditioner
This indoor unit can also be connected to a simultaneous multi
connection that enables simultaneous operation of multiple indoor units
by connecting the outdoor unit using a separation tube.
NOTES:
• The number of connectable indoor units and connectable type of the
separation tube vary by model.
• Depending on model, this function cannot be used. For details,
please consult authorized service personnel.
In simultaneous multi connection, all indoor units can be operated
simultaneously, from one remote controller connected to the primary
indoor unit.
For this unique characteristic of the simultaneous multi connection, the
functions of other indoor units may be restricted.
10. TROUBLESHOOTING
WARNING
In following events, immediately stop operation of the
air conditioner, and disconnect all the power supply by
turning off the electrical breaker or disconnecting the
power plug. Then consult your dealer or authorized
service personnel.
As long as the unit is connected to the power supply, it
is not insulated from the power supply even if the unit is
turned off .
• Unit smells of something burning or emits smoke
• Water leaks from the unit
Does not operate at all.
□ Has there been a power outage?
In this case, the unit restarts automatically after the power supply
is resumed. (Refer to page 5.)
□ Has the circuit breaker been turned off ?
⇒Turn on the circuit breaker.
□ Has a fuse blown out or the circuit breaker been tripped?
⇒Replace the fuse or reset the circuit breaker.
□ Is the timer operating?
⇒ To check or deactivate the timer setting, Refer to the operating
manual of the remote controller.
Poor cooling or heating performance.
□ Is the unit operating under the conditions except the permissible
temperature range?
In this case, the air conditioner may stop because of the automatic
protection circuit working.
□ Is the air fi lter dirty?
⇒ Clean the air fi lter. (Refer to page 4.)
□ Is the intake grille or outlet port of indoor unit blocked?
⇒ Remove the obstructions.
□ Is the room temperature adjusted appropriately?
⇒ To change the setting temperature, refer to the operating
manual of the remote controller.
□ Is a window or door left opened?
⇒ Close the window or the door.
□ Is the fan speed set to Quiet?
⇒ To change the fan speed, refer to the operating manual of the
remote controller.
□ Is the air conditioner in the Economy operation?
⇒ To stop the Economy operation, refer to the operating manual
of the remote controller.
□ <In the Cooling mode> Is direct or strong sunlight shining into the
room?
⇒ Close the curtains.
□ <In the Cooling mode> Are there other heating apparatus or com-
puters operating, or too many people in the room?
⇒ Turn the heating apparatus or computers off , or set the
temperature lower.
Airfl ow is weak or stops.
□ Is the fan speed set to Quiet?
⇒ To change the fan speed, refer to the operating manual of the
remote controller.
□ Has the Fan Control for Energy Saving set? In this case, the
indoor unit fan may stop temporarily while the Cooling operation.
⇒To cancel the Fan Control for Energy Saving, refer to the operating manual of the remote controller.
* This function cannot be disabled when the fan speed is set to
AUTO.
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□ <In the Heating mode> Have you just started the operation?
In this case, the fan rotates at very low speed temporarily to warm
up the internal parts of the unit.
□ <In the Heating mode> Is the room temperature higher than the
set temperature?
In this case, the outdoor unit stops and the indoor unit fan rotates
at very low speed.
□ <In the Heating mode> Is the Automatic defrosting operation
working? In this case, the indoor unit stops for maximum of 15
minutes. (Refer to page 5.)
□ <In the Dry mode> The indoor unit operates at low fan speed to
adjust the room humidity, and may stop from time to time.
□ <In the Auto mode> While the monitoring operation, the fan
rotates at very low speed.
□ <In multi connection> Are multiple units set in diff erent operation
mode as shown below?
In this case, the units set afterward will stop.
• Heating mode and other mode
Humidity does not drop.
□ <In the Dry operation> If the setting temperature is high, the
humidity may not drop.
⇒To lower the humidity, lower the setting temperature.
Noise is heard.
□ Is the unit operating, or immediate after stopping operation?
In this case, refrigerant fl owing sound may be heard. It may be
particularly noticeable for 2-3 minutes after starting operation.
□ Do you hear a slight squeaking sound during the operation?
This sound is produced by the minute expansion and contraction
of the front panel caused by temperature change.
□ <In the Heating mode> Do you hear a sizzling sound?
This sound is produced by the Automatic defrosting operation.
(Refer to page 5.)
Smell coming from the unit.
□ The air conditioner may absorb various smells generated from
interior textile, furniture, or cigarette smoke. These smells may be
emitted during the operation.
Mist or steam is emitted from the unit.
□ <In the Cooling or Dry mode> A thin mist may be generated by
condensation formed with sudden cooling process.
□ <In the Heating mode> Is the Automatic defrosting operation
working? In this case, steam may rise from the outdoor unit. (Refer to page 5.)
Outdoor unit emits water.
□ <In the Heating mode> The outdoor unit may emit water gener-
ated by the Automatic defrosting operation. (Refer to page 5.)
Operation is delayed after restart.
□ Has the power supply turned from off to on suddenly?
In this case, the compressor will not operate for about 3 minutes
to prevent a blowout of the fuse.
□ Has the electrical breaker is turned off then on again?
In this case, the protection circuit will operate for about 3 minutes.
Immediately stop operation and turn off the electrical breaker in
following cases. Then consult authorized service personnel.
• The problem persists even if you perform these checks or
diagnostics.
• Error sign is shown on the wired remote controller display or the
indicator lamps on the IR receiver unit.
NOTES:
For any troubleshooting related to the W-LAN control, refer to the
setting manual for W-LAN adapter or the mobile app installed in your
smartphone or tablet PC.
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