Fujitsu Inverter 9374379453 User manual

P/N9374379453
KEEP THIS MANUAL FOR FUTURE REFERENCE
FUJITSU GENERAL LIMITED
AIR CONDITIONER
Compact Cassette Type
HEAT & COOL MODEL
(REVERSE CYCLE)
OPERATING MANUAL
R410A
REFRIGERANT
ThisAir Conditioner containsand
operates with refrigerantR410A.
THIS PRODUCT MUST ONLY BEINSTALLED OR SERVICED
BYQUALIFIED PERSONNEL.
Refer to Commonwealth, State, Territoryand local legislation,
regulations, codes, installation &operation manuals, before
theinstallation, maintenance and/or service of thisproduct.
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DANGER!
CAUTION!
SAFETY PRECAUTIONS
● Before using the appliance,readthese “PRECAUTIONS” thoroughly and operate in the correct way.
● The instructions in this sectionall relate to safety; be sure to maintain safe operating conditions.
● “DANGER”,“WARNING” and “CAUTION” have the following meanings in these instructions:
DANGER! This mark indicates procedures which, if improperly performed, are most likely to
result in the deathorserious injury to the userorservice personnel.
WARNING! This mark indicates procedures which, if improperly performed, might leadto the
deathorserious injury ofthe userorservice personnel.
CAUTION! This mark indicates procedures which, if improperly performed, might possibly re-
sult in personalharm to the user, ordamage to property.
●Do not attempt to install this air conditionerby yourself.
●This unit contains no user-serviceable parts.Always consult authorizedservice per-
sonnelforrepairs.
●Whenmoving, consult authorizedservice personnelfordisconnectionand installa-
tionofthe air conditioner.
●
Do not become excessively chilledby staying formany hours in the direct cooling airow.
●Do not insert ngers orobjects into the outlet port orintake grilles.
●Do not start and stop air conditioneroperationby turning off the electricalbreaker.
●Take care not to damage the powersupply cord.
●Inthe event ofa malfunction(burning smell, etc.),immediately stop operation, turn
off the electricalbreaker, and consult authorizedservice personnel.
●
Ifthe powersupply cord ofthis appliance is damaged, it should only be replacedby the
authorizedservice personal, since specialpurpose tools and speciedcord are required.
●Inthe event ofrefrigerant leakage,be sure to keep away from re orany ammables.
(consult anauthorizedservice personnel)
●Provide occasionalventilationduring use.
●Do not direct air owat replaces orheating apparatus.
●Do not climbon, orplace objects on, the air conditioner.
●Do not hang objects from the indoorunit.
●Do not set owervases orwatercontainers ontop ofair conditioners.
●Do not expose the air conditionerdirectly to water.
●Do not operate the air conditionerwithwet hands.
●Do not pull powersupply cord.
●Turn off powersource whennot using the unit forextendedperiods.
●Always turn off the electricalbreakerwhenevercleaning the air conditioneror
changing the air lter.
●Connectionvalves become hot during Heating; handle withcare.
●Check the conditionofthe installationstand fordamage.
●Do not place animals orplants in the direct pathofthe air ow.
●Whenrestarting aftera long periodofdisuse in the winter, turn the powerswitchon
at least 12 hours before starting the unit.
●Do not drink the waterdrainedfrom the air conditioner.
●Do not use in applications involving the storage offoods,plants oranimals,preci-
sionequipment,orart works.
●Do not apply any heavy pressure to radiatorns.
●Operate only withair lters installed.
●Do not block orcoverthe intake grille and outlet port.
●Ensure that any electronic equipment is at least 1m away from eitherthe indooror
outdoorunits.
●Avoid installing the air conditionerneara replace orotherheating apparatus.
●
Wheninstalling the indoorand outdoorunits,take precautions to prevent access by infants.
●Do not use inammable gases nearthe air conditioner.
●This appliance is not intendedforuse by persons (including children) withreduced
physical, sensory ormentalcapabilities,orlack ofexperience and knowledge,un-
less they have beengivensupervisionorinstructionconcerning use ofthe appli-
ance by a personresponsible fortheir safety.Childrenshould be supervisedto en-
sure that they do not play withthe appliance.
CONTENTS
SAFETY PRECAUTIONS........................................ 1
FEATURES AND FUNCTIONS ............................... 2
NAME OF PARTS ................................................... 2
PREPARATION ....................................................... 4
OPERATION............................................................ 5
TIMER OPERATION ............................................... 7
SLEEP TIMER OPERATION................................... 8
MANUAL AUTO OPERATION................................. 8
ADJUSTING THE DIRECTION OF AIR CIRCULATION .... 9
SWING OPERATION .............................................. 9
ECONOMY OPERATION ...................................... 10
10°C HEAT OPERATION ...................................... 10
CLEANING AND CARE..........................................11
TROUBLESHOOTING .......................................... 13
OPERATING TIPS................................................. 15
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FEATURES AND FUNCTIONS
NAME OF PARTS
1Air Filter(InAir Intake Grille)
2AirowDirectionFlaps
3Air Intake Grille
4ControlPanel
5Remote ControlSignalReceiver
6MANUAL AUTO Button
●When the MANUAL AUTO button is pressed in for more than
10 seconds, the forced cooling operation will start.
●The forced cooling operation is used at the time of installation.
Only for authorized service personnel’s use.
●When the forced cooling operation starts by any chance, press
the START/STOP button to stop the operation.
●Please press the button at Filter Reset.
7OPERATION IndicatorLamp (Green)
8TIMER IndicatorLamp (Orange)
●
TIMER Indicator lamp lights when the timer is set from wireless remote control.
9ECONOMY IndicatorLamp (Green)
●ECONOMY indicator lamp lights when ECONOMY OPERATION
and 10°C HEAT OPERATION is operating.
SLEEP TIMER
When the SLEEP timer button is pressed during Heating mode, the
air conditioner’s thermostat setting is gradually lowered during the pe-
riod of operation; during Cooling or Dry mode, the thermostat setting
is gradually raised during the period of operation. When the set time
is reached, the unit automatically turns off.
■
Cleanfunction
REMOVABLE INTAKE GRILLE
The indoor unit’s intake grille can be removed for easy cleaning
and maintenance.
MILDEW-RESISTANT FILTER
The AIR FILTER has been treated to resist mildew growth,thus
allowing cleaner use and easier care.
■
Remote controller
WIRELESS REMOTE CONTROLLER
The wireless remote controller allows convenient control of air
conditioner operation.
WIRED REMOTE CONTROLLER (OPTION)
The optional wired remote controller can be used.
When you use remote controller, there are following different
points as compared with using wireless remote controller.
[The additional functions for wired ones]
• Weekly timer
• Temperature set back timer
And you can use both wired and wireless remote controller simultaneously.
(But function is limited)
When the restricted functions on the remote controller are used,
beeping sound will be heard, OPERATION, TIMER and the 3rd
lamp of the indoor unit will ash.
[The restricted functions for wireless ones]
• SLEEP TIMER
• TIMER
• 10°C HEAT OPERATION
■
Energy saving and Comfortable function
INVERTER
At the start of operation, large amount of power is used to bring the room
quickly to the desired temperature. Afterwards, the unit automatically
switches to a low power setting for economic and comfortable operation.
ECONOMY OPERATION
When ECONOMY operation mode is operated, the room temperature
will be little higher than the set-temp under cooling mode and lower
than set-temp under heating mode. Therefore, the ECONOMY mode
is able to save more energy than other normal mode.
SWING OPERATION
The Airow Direction Louvers swings automatically up and down
so that the air speeds to every nook and corner of your room.
SUPER QUIET OPERATION
When the FAN button is used to select QUIET, the indoor unit
begins super quiet operation; the indoor unit’s airflow is re-
duced to produce quieter operation.
AUTO CHANGEOVER
The operation mode (cooling, dry, heating) is switched auto-
matically to maintain the set temperature, and the temperature
is kept constant at all times.
10°C HEAT OPERATION
The room temperature can be maintained at 10°C so as to pre-
vent the room temperature from falling too far.
■
Convenient function
PROGRAM TIMER
The program timer allows you to integrate OFF timer and ON
timer operations in a single sequence. The sequence can in-
volve 1 transition from OFF timer to ON timer, or from ON timer
to OFF timer, within a 24 hour period.
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NAME OF PARTS
Remote controller
Display
1MODE button
210°C HEAT button
3SET TEMP.button( /)
4ECONOMY button
5SLEEP button
6FAN button
7START/STOP button
8SET button
9SWING button
0TIMER MODE button
ATIMER SET ( /) button
BCLOCK ADJUST button
CRESET button
DTEST RUN button
●
This button is used when installing the condi-
tioner, and should not be used under normal
conditions, as it will cause the air condi-
tioner’s thermostat function to operate incor-
rectly.
●
If this button is pressed during normal op-
eration, the unit will switch to test operation
mode, and the Indoor Unit’s OPERATION In-
dicator Lamp and TIMER Indicator Lamp will
begin to ash simultaneously.
●
To stop the test operation mode, press the
START/STOP button to stop the air condi-
tioner.
ESignalTransmitter
Display panel
To facilitate explanation, the accompanying illustration has
been drawn to show all possible indicators; in actual oper-
ation, however, the display will only show those indicators
appropriate to the current operation.
FTemperature SET Display
GOperating Mode Display
HSLEEP Display
ITransmit Indicator
JFanSpeedDisplay
KSWING Display
LTimerMode Display
MClock Display
Some indoor units may not be equipped with the functions
corresponding to all of the buttons on this remote control-
ler. The indoor unit will beep and the OPERATION, TIMER
and ECONOMY lamp ash when a remote controller but-
ton is pressed if the function is not available.
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LoadBatteries (R03/LR03 × 2)
1Press and slide the battery compartment lid onthe
reverse side to openit.
Slide in the direction of the arrow while pressing the mark.
2Insert batteries.
Be sure to align the battery polarities ( ) correctly.
3Close the battery compartment lid.
Set the Current time
1Press the CLOCK ADJUST button.
Use the tip of a ball-point pen or other small object to press the button.
2Use the TIMER SET ( /) buttons to adjust the
clock to the current time.
button: Press to advance the time.
button: Press to reverse the time.
(Each time the buttons are pressed, the time will be advanced/reversed in
1 minute increments; hold the buttons depressed to change the time quickly
in 10 minute increments.)
3Press the CLOCK ADJUST buttonagain.
This completes the time setting and starts the clock.
To Use the Remote controller
●The Remote controller must be pointed at signal receiver to operate correctly.
●Operating Range: About 7 meters.
●When a signal is properly received by the air conditioner, a beeping sound will be
heard.
●If no beep is heard, press the Remote controller button again.
Remote controllerHolder
1Mount the
Holder.
Screws
2Set the Remote con-
troller
Insert
Press in
3To remove the Remote con-
troller(whenuse at hand).
Slide up
Pull out
PREPARATION
CAUTION!
●Take care to prevent infants from acciden-
tally swallowing batteries.
●When not using the Remote controller for
an extended period, remove the batteries to
avoid possible leakage and damage to the
unit.
●If leaking battery uid comes in contact
with your skin, eyes, or mouth, immediately
wash with copious amounts of water, and
consult your physician.
●Dead batteries should be removed imme-
diately and disposed of properly, either in a
battery collection receptacle or to the appro-
priate authority.
●Do not attempt to recharge dry batteries.
Never mix new and used batteries, or
batteries of different types.
Batteries should last about 1 year under
normal use. If the Remote Controller’s
operating range becomes appreciably re-
duced, replace the batteries and press the
RESET button with the tip of a ballpoint
pen or other small object.
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To Select Mode Operation
1Press the START/STOP button.
The indoor unit’s OPERATION Indicator Lamp will light.
The air conditioner will start operating.
2Press the MODE buttonto select the desiredmode.
Each time the button is pressed, the mode will change in the following order.
▲ ▲ ▲
▼ ▼
AUTO COOL DRY
HEAT FAN
About 3 seconds later, the entire display will reappear.
To Set the Room temperature
Press the SET TEMP.button.
button: Press to raise the thermostat setting.
button: Press to lower the thermostat setting.
●T hermostat setting range:
AUTO ....................................18-30 °C
Cooling/Dry ...........................18-30 °C
Heating..................................16-30 °C
The thermostat cannot be used to set room temperature during the FAN mode (the tem-
perature will not appear on the Remote Controller’s Display).
About 3 seconds later, the entire display will reappear.
The thermostat setting should be considered a standard value, and may differ
somewhat from the actual room temperature.
To Set the FanSpeed
Press the FAN button.
Each time the button is pressed, the fan speed changes in the following order:
▲ ▲ ▲ ▲ ▲
AUTO HIGH MED LOW QUIET
About 3 seconds later, the entire display will reappear.
Whenset to AUTO:
Heating : Fan operates so as to optimally circulate warmed air.
However, the fan will operate at very low speed when the temperature of
the air issued from the indoor unit is low.
Cooling : As the room temperature approaches that of the thermostat setting, the
fan speed becomes slower.
Fan: The fan runs at the low fan speed.
The fan will operate at a very low setting during Monitor operation and at the
start of the Heating mode.
SUPER QUIET Operation
Whenset to Quiet:
SUPER QUIET operation begins. The indoor unit’s airow will be reduced for quieter
operation.
●SUPER QUIET operation cannot be used during Dry mode. (The same is true when
dry mode is selected during AUTO mode operation.)
●During SUPER QUIET operation, Heating and Cooling performance will be reduced
somewhat. If the room does not warm up/ cool down when using SUPER QUIET Op-
eration, please adjust the indoor unit’s Fan Speed.
OPERATION
Example: When set to COOL.
Example: When set to 26 °C.
Example: When set to AUTO.
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To Stop Operation
Press the START/STOP button.
The OPERATION Indicator Lamp will go out.
About AUTO CHANGEOVER Operation
AUTO: ●When AUTO CHANGEOVER is selected, the air conditioner selects the
appropriate operation mode (Cooling or Heating) according to your room’s
present temperature.
●When AUTO CHANGEOVER operation rst selected, the fan will operate
at low speed for about a few minute, during which time the indoor unit de-
tects the room conditions and selects the proper operation mode.
If the difference between thermostat setting and actual room temperature
is more than +2 °C
o Cooling operation
If the difference between thermostat setting and actual room temperature
is within ±2 °C
o
Determined by outdoor temperature
If the difference between thermostat setting and actual room temperature
is more than –2 °C
o
Heating operation
●When the air conditioner has adjusted your room’s temperature to near
the thermostat setting, it will begin monitor operation. In the monitor op-
eration mode, the fan will operate at low speed. If the room temperature
subsequently changes, the air conditioner will once again select the ap-
propriate 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 (HEAT, COOL, DRY, FAN).
About Mode Operation
Heating:●Use to warm your room.
●When Heating mode is selected, the air conditioner will operate at very
low fan speed for about 3 to 5 minutes, after which it will switch to the se-
lected fan setting. This period of time is provided to allow the indoor unit
to warm up before beginning full operation.
●When the outdoor temperature is very low, frost may form on the outside
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. Dur-
ing Automatic Defrosting operation, the OPERATION Indicator Lamp will
ash, and the heat operation will be interrupted.
●
After the start of heating operation, it takes some time before the room
gets warmer.
Cooling:●Use to cool your room.
Dry: ●Use for gently cooling while dehumidifying your room.
●You cannot heat the room during Dry mode.
●During Dry mode, 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 when Dry mode has been
selected.
Fan:●Use to circulate the air throughout your room.
During Heating mode:
Set the thermostat to a temperature setting
that is higher than the current room tem-
perature. The Heating mode will not oper-
ate if the thermostat is set lower than the
actual room temperature.
During Cooling/Dry mode:
Set the thermostat to a temperature setting
that is lower than the current room tem-
perature. The Cooling and Dry modes will
not operate if the thermostat is set higher
than the actual room temperature (in Cool-
ing mode, the fan alone will operate).
During Fanmode:
You can not use the unit to heat and cool
your room.
OPERATION
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To Use the ON timerorOFF timer
1Press the START/STOP button.
(if the unit is already operating, proceedto step 2).
The indoor unit’s OPERATION Indicator Lamp will light.
2Press the TIMER MODE buttonto select the OFF tim-
erorON timeroperation.
Each time the button is pressed the timer function changes in the following
order:
▼
▲
▲ ▲
CANCEL OFF ON
PROGRAM (OFF ON, OFF ON)
The indoor unit’s orange TIMER Indicator Lamp will light.
3Use the TIMER SET buttons to adjust the desiredOFF
time orON time.
Set the time while the time display is ashing (the ashing will continue for
about 5 seconds).
button: Press to advance the time.
button: Press to reverse the time.
About 5 seconds later, the entire display will reappear.
To Use the Program timer
1Press the START/STOP button.
(if the unit is already operating, proceedto step 2).
The indoor unit’s OPERATION Indicator Lamp will light.
2Set the desiredtimes forOFF timerand ON timer.
See the section “To Use the ON timer or OFF timer” to set the desired mode
and times.
About 3 seconds later, the entire display will reappear.
The indoor unit’s TIMER Indicator Lamp will light.
3
Press the TIMER MODE buttonto select the PROGRAM
timeroperation(OFF ON orOFF ON will display)
.
The display will alternately show “OFF timer” and “ON timer”, then change to
show the time setting for the operation to occur rst.
●The program timer will begin operation. (If the ON timer has been selected
to operate rst, the unit will stop operating at this point.)
About 5 seconds later, the entire display will reappear.
About the Program timer
●The program timer allows you to integrate OFF timer and ON timer operations in a
single sequence. The sequence can involve 1 transition from OFF timer to ON timer,
or from ON timer to OFF timer, within a 24 hour period.
●The rst timer function to operate will be the 1 set nearest to the current time. The
order of operation is indicated by the arrow in the Remote Controller’s Display
(OFF oON, or OFF mON).
●1 example of Program timer use might be to have the air conditioner automatically
stop (OFF timer) after you go to sleep, then start (ON timer) automatically in the
morning before you arise.
TIMER OPERATION
To Cancelthe Timer
Use the TIMER button to select “CANCEL”.
The air conditioner will return to normal opera-
tion.
To Change the TimerSettings
Perform steps 2and 3.
To Stop Air ConditionerOperationwhile
the Timeris Operating
Press the START/STOP button.
To Change Operating Conditions
If you wish to change operating conditions
(Mode, Fan Speed, Thermostat Setting,
QUIET mode), after making the timer setting
wait until the entire display reappears, then
press the appropriate buttons to change the
operating condition desired.
To Cancelthe Timer
Use the TIMER MODE button to select “CAN-
CEL”.
The air conditioner will return to normal opera-
tion.
To Change the TimerSettings
1.
Follow the instructions given in the section “To
Use the ON Timer or OFF Timer” to select
the timer setting you wish to change.
2. Press the TIMER MODE button to select
either OFF ON or OFF ON.
To Stop Air ConditionerOperationwhile the
Timeris Operating
Press the START/STOP button.
To Change Operating Conditions
If you wish to change operating conditions
(Mode, Fan Speed, Thermostat Setting, QUIET
mode), after making the timer setting wait until
the entire display reappears, then press the
appropriate buttons to change the operating
condition desired.
Before using the timer function, be sure that the Remote controller is set to the correct current time (☞P. 4).
If the indoor unit is connected to a wired remote controller, the wireless remote controller cannot be used to set the timer.
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Unlike other timer functions, the SLEEP timer is used to set the length of time until air conditioner operate is stopped.
If the indoor unit is connected to a wired remote controller, the wireless remote controller cannot be used to set the sleep timer.
To Use the SLEEP Timer
While the air conditioneris operating orstopped, press the
SLEEP button.
The indoor unit’s OPERATION Indicator Lamp lights and the TIMER Indicator Lamp
light.
To Change the TimerSettings
Press the SLEEP buttononce again and set the time using
the TIMER SET ( /) buttons.
button: Press to advance the time.
button: Press to reverse the time.
About 5 seconds later, the entire display will reappear.
To Cancelthe Timer:
Use the TIMER MODE button to select “CAN-
CEL”.
The air conditioner will return to normal opera-
tion.
To Stop the Air Conditioner
During TimerOperation:
Press the START/STOP button.
About the SLEEP Timer
To prevent excessive warming or cooling during sleep, the SLEEP timer function automatically modies the thermostat setting in ac-
cordance with the set time setting. When the set time has elapsed, the air conditioner completely stops.
During Cooling/Dry operation:
When the SLEEP timer is set, the thermostat setting is automati-
cally raised 1 °C every 1 hour. When the thermostat has been
raised a total of 2 °C, the thermostat setting at that time is main-
tained until the set time has elapsed, at which time the air condi-
tioner automatically turns off.
SLEEP timersetting
Set time
1 hour
1 °C 2 °C
During Heating operation:
When the SLEEP timer is set, the thermostat setting is
automatically lowered 1 °C every 30 minutes. When the thermo-
stat has been lowered a total of 4 °C, the thermostat setting at
that time is maintained until the set time has elapsed, at which
time the air conditioner automatically turns off.
SLEEP timersetting
2 °C 3 °C 4 °C
30
minutes
1 °C
1 hour
1 hour
30 minutes
Set time
SLEEP TIMER OPERATION
MANUAL AUTO OPERATION
Use the MANUAL AUTO operation in the event the Remote Controller is lost or otherwise unavailable.
HowTo Use the Main Unit Controls
Press the MANUAL AUTO buttonmore than
3 seconds and less than10 seconds onthe
main unit controlpanel.
To stop operation, press the MANUAL AUTO button once again.
(Controls are located inside the intake grille)
●When the air conditioner is operated
with the controls on the MANUAL AUTO
button, it will operate under the same
mode as the AUTO mode selected on
the Remote Controller.
●The fan speed selected will be “AUTO”
and the thermostat setting will be stand-
ard.(24°C)
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ADJUSTING THE DIRECTION OF AIR CIRCULATION
SWING OPERATION
Begin air conditioner operation before performing this procedure.
To select SWING Operation
Press the SWING button
The SWING Display will light.
In this mode, the Air Flow Direction Louvers will swing automatically to direct the air
ow both up and down.
To stop SWING Operation
Press the SWING buttononce again.
The SWING Display will go out.
Airow direction will return to the setting before swing was begun.
●Attempting to move up/down air direc-
tion flaps manually could result in im-
proper operation; in this case, stop op-
eration and restart. The louvers should
begin to operate properly again.
●When used in a room with infants, chil-
dren, elderly or sick persons, the air
direction and room temperature should
be considered carefully when making
settings.
VerticalAir DirectionAdjustment
Press the SET button(Vertical).
Each time the button is pressed, the air direction range will change as follows:
1234
The remote controller’s display
does not change.
Instructions relating to heating (*) are applicable only to “HEAT & COOL MODEL” (Reverse Cycle).
Begin air conditioner operation before performing this procedure.
Air Flow Direction Setting:
1, 2, 3, 4: During Cooling/Heating/Dry mode
●The vertical airow direction is set automatically as shown, in accordance with the
type of operation selected.
During Cooling/Dry mode : Horizontal ow 1
* During Heating mode : Downward ow 4
●During AUTO mode operation, for the rst minute after beginning operation, airow
will be horizontal 1; the air direction cannot be adjusted during this period.
HorizontalAir DirectionAdjustment
The function cannot be used.
About Swing Operation
The type ofoperationRange ofswing
Cooling/Heating/Dry/Fan 1to 4
●The SWING operation may stop temporarily when the air
conditioner’s fan is not operating, or when operating at very
low speeds
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ECONOMY OPERATION
Begin Air Conditioner operation before performing this procedure.
To Use the ECONOMY Operation
Press the ECONOMY button.
The ECONOMY indicator Lamp (green) will light.
ECONOMY operation begins.
To Stop the ECONOMY Operation
Press the ECONOMY buttonagain.
The ECONOMY Indicator Lamp (green) will go out.
Normal operation begins.
About ECONOMY Operation
●When ECONOMY operation mode is operated, the room temperature will be little higher than the set-temp under cooling mode
and lower than set-temp under heating mode. Therefore, the ECONOMY mode is able to save more energy than other normal
mode.
●In case of single-type, at the maximum output, ECONOMY Operation is approximately 70% of normal air conditioner operation for
cooling and heating.
●In case of multi-type air conditioner, the ECONOMY operation mode is only available for the set indoor unit.
●If the room is not cooled (or heated) well during ECONOMY operation, select normal operation.
●During the monitor period in the AUTO mode, the air conditioner operation will not change to ECONOMY operation even if ECON-
OMY operation is selected by pressing the ECONOMY operation button.
10°C HEAT OPERATION
To use 10°C HEAT OPERATION
Press the 10°C HEAT button
The OPERATION indicator lamp (green) will go out, and the ECONOMY indicator lamp
(green) will light.
To stop 10°C HEAT OPERATION
Press the START/STOP button
Then the OPERATION stops and the ECONOMY indicator lamp (green) will go out.
About the 10°C HEAT Operation
• The Heating mode will not operate if the room temperature is high enough.
• The room temperature can be maintained at 10°C by pressing the 10°C HEAT button
so as to prevent the room temperature from falling too far.
• In case of multi-type air conditioner, if other indoor unit is used for heating, the temper-
ature of the room where the “10°C HEAT” function is applied will rise. When using the
“10°C HEAT” function, we recommend all indoor units should be run under the“10°C
HEAT” mode.
While 10°C HEAT OPERATION is in
progress, only the following
operation can be used.
• SET
Indicator Lamp
:Lighting :OFF
Indicator Lamp
:Lighting :OFF
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CLEANING AND CARE
Cleaning the Air Filter
1. Pushthe intake grille’s hooks inward to-
wards the centerofthe unit to openthe
intake grille.
Grille Hook
2.Pull out the lterfrom the intake grille.
Air Filter
3.Cleanthe air lters.
Remove the dust from the air lters by vacuuming or wash-
ing them. After washing, allow the air filters to dry thor-
oughly in an area protected from sunlight.
●When used for extended periods, the unit may accumulate dirt inside, reducing its performance. We recommend that the unit
be inspected regularly, in addition to your own cleaning and care. For more information, consult authorized service personnel.
●When cleaning the unit’s body, do not use water hotter than 40 °C, harsh abrasive cleansers, or volatile agents like benzene or
thinner.
●Do not expose the unit body to liquid insecticides or hairsprays.
●If the unit will not be operated for a period of 1 month or more, be sure to allow the inner parts of the unit to dry thoroughly, in
advance, by operating the unit in fan mode for half a day.
4. Re-attachthe air filters to the intake
grille.
1Replace the air lter into its holder.
2Make sure that the air lter makes contact with the lter
stopper when it is replaced into its holder.
Intake Grille
Air Filter
Filter Hook
5.Close the intake grille and pushthe in-
take grille’s hooks outward.
Grille Hook
●Dust can be cleaned from the air lter either with a vacuum
cleaner, or by washing the lter in a solution of mild deter-
gent and warm water. If you wash the lter, be sure to allow
it to dry thoroughly in a shady place before reinstalling.
●If dirt is allowed to accumulate on the air lter, air ow will
be reduced, lowering operating efficiency and increasing
noise.
●Before cleaning the unit, be sure to stop the unit and disconnect the power supply.
●Turn off the electrical breaker.
●A fan operates at high speed inside the unit, and personal injury could result.
●Be careful not to drop the intake grille.
●As the filter cleaning involves high-altitude operation, please consult the professional technical
service personnel.
CAUTION!
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CLEANING AND CARE
FilterReset (ECONOMY IndicatorLamp ashing/ A specialsetting)
●Canbe usedif set correctly during installation.
Please consult authorizedservicemanwhenusing this function.
• It lights on when it is time to clean the air lters.
After turning the power on, press the
MANUAL AUTO button for 2 seconds or
less on the indoor unit.
: Flashing : OFF
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TROUBLESHOOTING
Instructions relating to heating (*) are applicable only to “HEAT & COOL MODEL” (Reverse Cycle).
In the event of a malfunction (burning smell, etc.), immediately stop operation, disconnect the power
supply plug or turn off the circuit breaker, and consult authorized service personnel. Merely turning off
the unit’s power switch will not completely disconnect the unit from the power source. Always be sure
to disconnect the power supply plug or turn off your circuit breaker to ensure that power is completely
off.
Before requesting service, perform the following checks:
Symptom Problem See Page
NORMAL
FUNCTION
Doesn’t operate im-
mediately:
●If the unit is stopped and then immediately started again, the compressor will
not operate for about 3 minutes, in order to prevent fuse blowouts.
●
Whenever the power supply plug is disconnected and then reconnected to a
power outlet, the protection circuit will operate for about 3 minutes, prevent-
ing unit operation during that period.
—
Noise is heard: ●During operation and immediately after stopping the unit, the sound of water
owing in the air conditioner’s piping may be heard. Also, noise may be par-
ticularly noticeable for about 2 to 3 minutes after starting operation (sound of
coolant owing).
●During operation, a slight squeaking sound may be heard. This is the result
of minute expansion and contraction of the front panel due to temperature
changes.
—
*● During Heating operation, a sizzling sound may be heard occasionally. This
sound is produced by the Automatic Defrosting operation. 15
Smells: ●Some smell may be emitted from the indoor unit. This smell is the result of
room smells (furniture, tobacco, etc.) which have been taken into the indoor
unit.
—
Mist or steam are
emitted:
●During Cooling or Dry operation, a thin mist may be seen emitted from the
indoor unit. This results from the sudden cooling of room air by the cool air
emitted from the indoor unit, resulting in condensation and misting.
—
*● During Heating operation, the outdoor unit’s fan may stop, and steam may
be seen rising from the unit. This is due to the Automatic Defrosting opera-
tion.
15
Airow is weak or
stops:
*● When Heating operation is started, fan speed is temporarily very low, to al-
low internal parts to warm up.
*● During Heating operation, if the room temperature rises above the thermo-
stat setting, the outdoor unit will stop, and the indoor unit will operate at very
low fan speed. If you wish to warm the room further, set the thermostat to a
higher setting.
—
*● During Heating operation, the unit will temporarily stop operation (between 4
and 15 minutes) as the Automatic Defrosting mode operates. During the Au-
tomatic Defrosting operation, the OPERATION indicator lamp will ash.
15
●The fan may operate at very low speed during Dry operation or when the unit
is monitoring the room’s temperature. —
●
During SUPER QUIET operation, the fan will operate at very low speed.
—
●
In the monitor AUTO operation, the fan will operate at very low speed.
—
●
In case of Multi-type unit, if multiple units are operated in different operation
modes as shown below, the units operated afterward will stop and the OP-
ERATION indicator lamp (green) will ash.
Heating mode and cooling mode (or dry mode)
Heating mode and fan mode
16
Water is produced
from the outdoor unit:
*● During Heating operation, water may be produced from the outdoor unit due
to the Automatic Defrosting operation. 15
The ECONOMY Indi-
cator Lamp ashing.
●Clean the lter. Afterwards, turn the ECONOMY lamp off. 12
WARNING!
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TROUBLESHOOTING
Symptom Problem See Page
CHECK
ONCE
MORE
Doesn’t operate at all: ●Has the circuit breaker been turned off?
●Has there been a power failure?
●Has a fuse blown out, or a circuit breaker been tripped?
—
●Is the timer operating? 7 to 8
Poor Cooling
(or *Heating)
performance:
●Is the air lter dirty?
●Are the air conditioner’s intake grille or outlet port blocked?
●Did you adjust the room temperature settings (thermostat) correctly?
●Is there a window or door open?
●In the case of Cooling operation, is a window allowing bright sunlight to en-
ter? (Close the curtains.)
●I
n the case of Cooling operation, are there heating apparatus and computers in-
side the room, or are there too many people in the room?
—
●Is the unit set for QUIET operation? —
The unit operates
differently from the
remote controller’s
setting:
●Are the remote controller’s batteries dead?
●Are the remote controller’s batteries loaded properly? 4
If the problem persists after performing these checks, or if you notice burning smells, or the OPERATION Indicator Lamp and the TIMER
Indicator Lamp ashes, and ECONOMY Indicator Lamp ashes fast. Immediately stop operation, turn off the electrical breaker and con-
sult authorized service personnel.
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OPERATING TIPS
Instructions relating to heating (*) are applicable only to “HEAT & COOL MODEL” (Reverse Cycle).
* Microcomputer-controlledAutomatic Defrosting
●When using the Heating mode under conditions of low out-
door temperature and high humidity, frost may form on the
outdoor unit, resulting in reduced operating performance.
In order to prevent this kind of reduced performance, this
unit is equipped with a Microcomputer-controlled Automatic
Defrosting function. If frost forms, the air conditioner will
temporarily stop, and the defrosting circuit will operate brief-
ly (for about 4 to 15 minutes).
During Automatic Defrosting operation, the OPERATION
indicator lamp will ash.
●After heating operation stops, if frost forms on the outdoor
unit, the unit will start Automatic Defrosting operation. At this
time, the outdoor unit will automatically stop after operating
for a few minutes.
LowAmbient Cooling
●When the outdoor temperature drops, the outdoor unit’s
fans may switch to Low Speed, or one of the fans may stop
intermittently.
*Heating Performance
●This air conditioner operates on the heat-pump principle,
absorbing heat from outdoor air and transferring that heat
indoors. As a result, the operating performance is reduced
as outdoor air temperature drops. If you feel that insufcient
heating performance is being produced, we recommend
you use this air conditioner in conjunction with another type
of heating appliance.
●Heat-pump air conditioners heat your entire room by recir-
culating air throughout the room, with the result that some
time may be required after rst starting the air conditioner
until the room is heated.
* WhenIndoorand OutdoorTemperature are High
●When both indoor and outdoor temperatures are high dur-
ing use of the heating mode, the outdoor unit’s fan may stop
at times.
●Should the power supply to the air conditioner be inter-
rupted by a power failure, the air conditioner will restart au-
tomatically in the previously selected mode once the power
is restored.
●Should a power failure occur during TIMER operation, the
timer will be reset and the unit will begin (or stop) operating
under the new timer setting. In this event, the TIMER indi-
cator lamp will ash.
●Use of other electrical appliances (electric shaver, etc.) or
nearby use of a wireless radio transmitter may cause the air
conditioner to malfunction. In this event, temporarily discon-
nect the power supply plug, reconnect it, and then use the
remote controller to resume operation.
AUTO Restart
InEvent ofPowerInterruption
DualRemote Controllers (optional)
An additional remote controller can be added up to the maximum of 2 remote controllers. Either remote controller can control the air
conditioner. However, the timer functions cannot be used at the secondary unit.
Group Control
1 remote controller can control up to 16 air conditioners. All of the air conditioners will be operated with the same settings.
Group controlcannot be usedwhenusing it by the multitype.
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OPERATING TIPS
Multi-type Air conditioner
This indoor unit can be connected to a multi-type outdoor unit. The multi-type air conditioner allows multiple indoor units to be oper-
ated in multiple locations. The indoor units may be operated simultaneously, in accordance with their respective output.
Instructions relating to inverter(❖) are applicable only to “INVERTER MODEL”.
it cannot perform, the OPERATION indicator lamp on the
indoor unit will ash (1 second on, 1 second off) and the
unit will go into the standby mode.
Heating mode and cooling mode (or dry mode)
Heating mode and fan mode
❖ ●Operation can be done in the following different 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 rst. If the in-
door unit was started in fan mode, the operating mode of
the outdoor unit will not be determined.
For example, if indoor unit (A) was started in fan mode and
then indoor unit (B) was then operated in heating mode,
indoor unit (A) would temporarily start operation in fan
mode but when indoor unit (B) started operating in heat-
ing mode, the OPERATION indicator lamp for indoor unit
(A) would begin to ash (1 second on, 1 second off) and
it would go into standby mode. Indoor unit (B) would con-
tinue to operate in heating mode.
Simultaneous Use ofMultiple Units
●
When using a multi-type air conditioner, the multiple in-
door units can be operated simultaneously, but when 2 or
more indoor units of the same group are operated simul-
taneously, the heating and cooling ef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 heat-
ing, it is recommended that they be used in conjunction
with other auxiliary space heaters, as required.
●
Seasonal and outdoor temperature conditions, the struc-
ture of the rooms and the number of persons present may
also result in differences of operating efciency. We rec-
ommend that you try various operating patterns in order to
con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 different operat-
ing modes.
If the indoor unit is instructed to do an operating mode that
Instructions relating to heating (*) are applicable only to “HEAT & COOL MODEL” (Reverse Cycle).
*●During use of the heating mode, the top of the indoor unit
may become warm, but this is due to the fact that cool-
ant is circulated through the indoor unit even when it is
stopped; it is not a malfunction.
Notice
*●During use of the heating mode, the outdoor unit will occa-
sionally commence the defrost operation for brief periods.
During the defrosting operation, if the user sets the indoor
unit for heating again, the defrosting mode will continue,
and the heating operation will begin after completion of
defrosting, with the result that some time may be required
before warm air is emitted.
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