Fujitsu Air Conditioner Room Air Conditioner Wall Mounted Type User Manual

Fig. 1 Indoor Unit  
Fig. 6 Remote Control Unit  
HMASTER CONTROL button  
ISET TEMP. / SET TIME buttons (+/-)  
JSignal Transmitter  
KTIMER button  
LFAN CONTROL button  
MSTART/STOP button  
NAIR CLEAN button  
OSET button  
1Operating Control Panel (Fig. 2)  
2AIR CLEANER RESET / MANUAL AUTO  
button  
G Intake grill opening mechanism.  
When the remote control is not available  
for use, this button can be used as a  
Quick-start button. However when the  
Air Cleaning check function (see page 13)  
is in operation, this button is used as a  
reset button.  
PSWING button  
QACL button  
RTIME ADJUST button  
3Indicator Lamps (Fig. 3)  
4Remote Control Signal Receiver  
5OPERATION Indicator Lamp (red)  
6TIMER Indicator Lamp (green)  
Rear side (Fig. 7)  
STEST RUN  
G Touch the two metal contacts with a  
metallic object to send the signal to  
perform a test run.  
G If the TIMER indicator lamp flashes when  
the timer is operating, it indicates that a  
fault has occurred with the timer setting  
G
Perform a test run only when installing the  
air conditioner. If the signal to perform a  
test run is received during normal  
operation, the air conditioner’s thermostat  
will malfunction.  
(See Page GAuto Restart).  
7AIR CLEAN Indicator Lamp (green)  
8SWING Indicator Lamp (orange)  
9Intake Grille (Fig. 4)  
0Air Filter  
AAir Flow Direction Louver  
BRight-Left Louver  
(behind Air Flow Direction Louver)  
CDrain Hose  
DElectrical Air Cleaning Filter  
G
If the signal to perform a test run is re-  
ceived during normal operation, the unit  
will switch to the test operation mode and  
the indoor unit’s OPERATION and TIMER  
indicator lamps will flash simultaneously.  
G To stop the test operation mode, press the  
START/STOP button to stop the air  
conditioner.  
TRemote Control Unit Display (Fig. 8)  
UTransmit Indicator  
Fig. 5 Outdoor Unit  
VClock Display  
EIntake Port  
FOutlet Port  
GPipe Unit  
WOperating Mode Display  
XTimer Mode Display  
YFan Speed Display  
ZTemperature Set Display  
[Timer Set Indicator  
\Temperature Set Indicator  
G Refer to the folded out page on the cover.  
En-2  
FEATURES AND FUNCTIONS  
SLEEP TIMER  
SUPER QUIET OPERATION  
When SLEEP is selected be pressing TIMER button during  
Heating mode, the air conditioner’s thermostat setting is  
gradually lowered during the period 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.  
When the FAN CONTROL button is used to select QUIET,  
the unit begins super-quiet operation; the indoor unit’s air-  
flow is reduced to produce quieter operation.  
AIR CLEANING MODE  
Relies on the air conditioner’s power to quickly purify the  
air in the room.  
SWING OPERATION  
The Air Flow Direction Louvers swings automatically up and  
down so that the air speeds to every nook and corner of  
your room.  
ELECTRONIC AIR CLEAN FILTER  
Install for use inside of the dust collection unit. For details  
on how to install the filter, please refer to page 15.  
Electrical power is used to charge the filter to remove con-  
taminants from the air and to effectively collect dust and  
remove odors. It also helps to reduce the bacterial activity.  
WIRELESS REMOTE CONTROL UNIT  
The Wireless Remote Control Unit allows convenient con-  
trol of air conditioner operation.  
MILDEW-RESISTANT FILTER  
The AIR FILTER has been treated to resist mildew growth,  
thus allowing cleaner use and easier care.  
WIRED REMOTE CONTROL UNIT (OPTION)  
The optional wired remote control unit (model No.: AR-3TA ) can be used.  
When you use remote control unit, there are following different points as compared with  
using wireless remote control unit.  
[The additional functions for wired ones]  
• Weekly timer  
Temperature set back timer  
[The restricted functions for wired ones]  
• Air-cleaning function can't be turned ON/OFF. (During operation, it is always ON)  
• QUIET can't be selected in FAN MODE.  
• Sleep-timer can't be used.  
And you can't use both wired remote control unit and wireless simultaneously.  
(Only one kind can be selected)  
En-3  
PREPARATION  
CAUTION!  
Turn on the Power  
G Take care to prevent infants from  
accidentally swallowing batteries.  
G When not using the remote control unit  
for an extended period, remove the  
batteries to avoid possible leakage and  
damage to the unit.  
In the case of a direct line connection, turn on the circuit  
breaker.  
G If leaking battery fluid comes in contact  
with your skin, eyes, or mouth, immedi-  
ately wash with copious amounts of  
water, and consult your physician.  
G Dead batteries should be removed  
immediately and disposed of properly,  
either in a battery collection receptacle  
or to the appropriate authority.  
Load Batteries (R03 / LR03 × 2)  
Press and slide the battery compartment lid on the re-  
1
verse side to open it.  
Slide in the direction of the arrow while pressing the  
mark.  
G Do not attempt to recharge dry batteries.  
Never mix new and used batteries, or  
batteries of different types.  
Insert batteries.  
Be sure to align the battery polarities (  
2
3
) correctly.  
Batteries should last about one year  
under normal use. If the remote control  
unit’s operating range becomes appre-  
ciably reduced, replace the batteries and  
press the ACL button with the tip of a  
ballpoint pen or other small object.  
Close the battery compartment lid.  
Set the Current time  
Press the TIME ADJUST button (Fig. 6 R).  
1
2
Use the tip of a ball-point pen or other small object to press the button.  
Use the ,/ -SET TEMP. / SET TIME buttons (Fig. 6  
I) 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  
one-minute increments; hold the buttons depressed to change the time  
quickly in ten-minute increments.)  
Press the TIME ADJUST button again.  
This completes the time setting and starts the clock.  
3
To Use the Remote Control Unit  
G The Remote Control Unit must be pointed at signal receiver (Fig. 1 4) to operate  
correctly.  
G Operating Range: About 7 meters.  
G When a signal is properly received by the air conditioner, a beeping sound will  
be heard.  
G If no beep is heard, press the Remote Control Unit button again.  
Remote Control Unit Holder  
Insert  
Slide up  
Pull out  
Press in  
Screws  
1
Mount the Holder. 2 Set the Remote Control  
Unit.  
3
To remove the Remote  
Control Unit (when use at  
hand).  
En-4  
OPERATION  
To Select Mode Operation  
Press the START / STOP button (Fig.6 M).  
1
2
The indoor unit’s OPERATION indicator lamp (red) (Fig. 3 5) will light.  
The air conditioner will start operating.  
Press the MASTER CONTROL button (Fig.6 H) to se-  
lect the desired mode.  
Each time the button is pressed, the mode will change in the following  
order.  
sAUTO  
sCOOL  
s DRY  
FANt  
Example: When set to COOL.  
About three seconds later, the entire display will reappear.  
To Set the Thermostat  
Press the SET TEMP. / SET TIME buttons (Fig. 6 I).  
,button: Press to raise the thermostat setting.  
-button: Press to lower the thermostat setting.  
GThermostat setting range:  
AUTO .................................. 64 to 88 °F  
Cooling/Dry ........................ 64 to 88 °F  
The thermostat cannot be used to set room temperature during the  
FAN mode (the temperature will not appear on the remote control  
unit’s display).  
About three 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.  
Example: When set to 86 °F.  
To Set the Fan Speed  
Press the FAN CONTROL button (Fig. 6 L).  
Each time the button is pressed, the fan speed changes in the following order:  
s
AUTO  
s
s
s
s
HIGH  
MED  
LOW  
QUIET  
About three seconds later, the entire display will reappear.  
When set to AUTO:  
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.  
When set to QUIET:  
Example: When set to AUTO.  
SUPER QUIET operation begins. The indoor unit’s airflow will be reduced for qui-  
eter operation.  
G SUPER QUIET operation cannot be used during Dry mode. (The same is true  
when dry mode is selected during AUTO mode operation.)  
G Heating and Cooling performance will be reduced somewhat during SUPER QUIET  
operation.  
To Stop Operation  
Press the START/STOP button (Fig.6 M).  
The OPERATION indicator lamp (red) (Fig. 3 5) will go out.  
En-5  
OPERATION  
About Mode Operation  
AUTO:  
G
Depending on the room temperature at the time operation begins, the  
operating mode will be switched automatically as shown in the  
accompanying table.  
Also, depending on the operating mode, the room temperature set-  
ting will cause the “standard” temperature to be set as shown.  
During Cooling/Dry mode:  
Set the thermostat to a temperature set-  
ting that is lower than the current room  
temperature. The Cooling and Dry modes  
will not operate if the thermostat is set  
higher than the actual room temperature  
(in Cooling mode, the fan alone will oper-  
ate).  
Actual Room  
Operating Mode  
Thermostat Setting  
Temperature  
(standard setting)  
During Fan mode:  
You can not use the unit to heat and cool  
your room.  
88 °F or above   
Cooling  
Cooling  
Dry  
Dry  
Dry  
82 °F  
80 °F  
76 °F  
72 °F  
68 °F  
82 °F to 88 °F  
78 °F to 82 °F  
74 °F to 78 °F  
Below 74 °F  
The operating mode and standard thermostat settings are selected auto-  
matically when operation begins.  
G
When automatic operation is initiated, the fan will run at very low  
speed for about one minute while the unit detects and selects the proper  
operating mode.  
G
G
Once the operating mode has been set, the mode will not change even  
if the room temperature changes.  
If the START/STOP button is pressed to recommence operation within  
two hours after stopping automatic operation, the unit will begin op-  
erating from the same mode as before.  
Cooling: G Use to cool your room.  
Dry:  
G Use for gently cooling while dehumidifying your room.  
G You cannot heat the room during Dry mode.  
G 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.  
G The fan speed cannot be changed manually when Dry mode has been  
selected.  
Fan:  
G Use to circulate the air throughout your room.  
En-6  
AIR CLEANING OPERATION  
If you wish to eliminate dirt,dust,cigarette smoke, pollen, or just simply purify the  
air of the room, use the Air Cleaning Mode.  
Press the START/STOP button (Fig. 6 M).  
1
The operation indicator lamp will light up (red, as shown in the figure).  
(If the unit is already in operation, please proceed to step 2.)  
Press the AIR CLEAN button (Fig. 6 N).  
2
The AIR CLEAN indicator lamp (Fig. 3 7) will light up (green, as shown in  
the figure).  
G Air conditioning and Air Cleaning will function simultaneously.  
If you wish to stop Air Clean  
Press the AIR CLEAN button (Fig. 6 N) once again.  
The AIR CLEAN indicator lamp (green) will switch off (as shown in the figure).  
G This will only stop the Air Cleaning, the air conditioner will continue operating.  
To also stop the air conditioner  
Press the START/STOP button (Fig. 6 N).  
The operation indicator lamp (Fig. 3 5) will go out (red, as shown in the figure).  
G The next time the START / STOP button (Fig. 6 N) is pressed air conditioning  
and air cleaning will both resume operating.  
Air cleaning  
G During operation, the unit produces a small amount of ozone that can be smelled.  
G When this unit is used in combination with the ultrasonic humidifier, white  
particles may become attached to the plasma filter unit. If this happens, clean the  
plasma filter unit as soon as possible. (Refer to page 14.)  
G The air cleaning operation cannot remove gases such as carbon monoxide and  
alcohol from the air. During operation, ventilate the room often to prevent as-  
phyxiation or suffocation.  
G If the intake filter is removed during operation, a safety device will stop the  
operation of the plasma filter unit. If this happens, the air clean indicator lamp  
(green) on the indoor unit will flash after some time has passed. Use the START/  
STOP button on the remote controller to stop the operation, install the intake  
filter, and then use the START/STOP button to restart the operation.  
G Use the FAN CONTROL button to change the fan speed. (Refer to page 6.) The  
plasma filter unit operates most effectively at the highest fan speed.  
G The air clean indicator lamp will flash to inform you that the periodic cleaning of  
the plasma filter unit is required. (Refer to page 14.)  
En-7  
TIMER OPERATION  
Before using the timer function, be sure that the Remote Control Unit is set to the correct current time, see page 4.  
To Use the ON timer or OFF timer  
To Cancel the Timer  
Press the START / STOP button (Fig. 6 M).  
(if the unit is already operating, proceed to step 2).  
The indoor unit's OPERATION Indicator Lamp (red) (Fig. 3 5) will light.  
Use the TIMER button to select “TIMER  
RESET.”  
The air conditioner will return to normal  
operation.  
1
To Change the Timer Settings  
Press the TIMER button (Fig. 6 K) to select the OFF  
timer or ON timer operation.  
Each time the button is pressed the timer function changes in the following  
order:  
Perform steps 2 and 3.  
2
To Stop Air Conditioner Operation while  
the Timer is Operating  
Press the START / STOP button.  
RESET  
SLEEP  
OFF  
ON  
PROGRAM (OFF  
ON, OFF  
ON)  
To Change Operating Conditions  
If you wish to change operating conditions  
(Mode, Fan Speed, Thermostat Setting,  
SUPER QUIET mode), after making the  
timer setting wait until the entire display  
reappears, then press the appropriate  
buttons to change the operating condition  
desired.  
The indoor unit's green TIMER lamp (Fig. 3 6) will light.  
Use the SET TEMP. / SET TIME buttons (Fig. 6 I) to  
adjust the desired OFF time or ON time.  
Set the time while the time display is flashing (the flashing will continue  
for about five seconds).  
3
,button: Press to advance the time.  
-button: Press to reverse the time.  
About five seconds later, the entire display will reappear.  
To Use the Program Timer  
To Cancel the Timer  
Press the START / STOP button (Fig. 6 M).  
(if the unit is already operating, proceed to step 2).  
The indoor unit's OPERATION Indicator Lamp (red) (Fig. 3 5) will light.  
Use the TIMER button to select “TIMER  
RESET.”  
The air conditioner will return to normal  
operation.  
1
To Change the Timer Settings  
Set the desired times for OFF timer and ON timer.  
2
See the section “To Use the ON Timer or OFF Timer” to set the desired  
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.  
mode and times.  
About three seconds later, the entire display will reappear.  
The indoor unit's TIMER Indicator Lamp (green) (Fig. 3 6) will light.  
2. Press the TIMER button to select either  
OFF  
ON or OFF  
ON.  
Press the TIMER button (Fig. 6 K) to select the  
PROGRAM timer operation (OFF ON or OFF ON  
To Stop Air Conditioner Operation while  
the Timer is Operating  
3
will display).  
Press the START / STOP button.  
The display will alternately show “OFF timer” and “ON timer”, then change  
to show the time setting for the operation to occur first.  
To Change Operating Conditions  
If you wish to change operating conditions  
(Mode, Fan Speed, Thermostat Setting,  
SUPER QUIET mode), after making the  
timer setting wait until the entire display  
reappears, then press the appropriate  
buttons to change the operating condition  
desired.  
G The program timer will begin operation. ( If the ON timer has been  
selected to operate first, the unit will stop operating at this point).  
About five seconds later, the entire display will reappear.  
About the Program Timer  
G The program timer allows you to integrate OFF timer and ON timer operations in  
a single sequence. The sequence can involve one transition from OFF timer to  
ON timer, or from ON timer to OFF timer, within a twenty-four hour period.  
G The first timer function to operate will be the one set nearest to the current time.  
The order of operation is indicated by the arrow in the Remote Control Unit's  
Display (OFF  
ON or OFF  
ON ).  
G One 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.  
En-8  
SLEEP TIMER OPERATION  
Unlike other timer functions; the SLEEP timer is used to set the length of time until air conditioner operation is stopped.  
To Use the SLEEP Timer  
To Cancel the Timer:  
Use the TIMER button to select “TIMER  
RESET”.  
The air conditioner will return to normal  
operation.  
While the air conditioner is operating or stopped,  
press the TIMER button (Fig. 6 K).  
The indoor unit's OPERATION Indicator Lamp (red) (Fig. 3 5) lights and  
the TIMER Indicator Lamp (green) (Fig. 3 6) light.  
1
To Stop the Air Conditioner During  
Timer Operation:  
To Change the TIMER Settings  
Press the START / STOP button.  
Press the TIMER button (Fig. 6 K) once again and set the time  
using the time set buttons (Fig. 6 I).  
Set the time while the time display is flashing (the flashing will continue about five  
seconds).  
,button: Press to advance the time.  
-button: Press to reverse the time.  
About five seconds later, the entire display will reappear.  
About the SLEEP Timer  
To prevent excessive cooling during sleep, the SLEEP timer function automatically modifies the thermostat setting in accon-  
dance with the 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 automatically raised 2 °F every sixty minutes. When the thermostat has  
been raised a total of 4 °F, the thermostat setting at that time is maintained until the set time has elapsed, at which time the air  
conditioner automatically turns off.  
SLEEP timer setting  
Set time  
1 hour  
4 °F  
2 °F  
En-9  
ADJUSTING THE DIRECTION OF AIR CIRCULATION  
Vertical (up-down) direction of airflow is adjusted by pressing the Remote Control Unit’s SET button. Horizontal (right-left)  
airflow direction is adjusted manually, by moving the Air Flow Direction Louvers.  
Whenever making horizontal airflow adjustments, start air conditioner operation and be sure that the vertical air direction  
louvers are stopped.  
Vertical Air Direction Adjustment  
R
DANGER!  
G Never place fingers or foreign objects in-  
side the outlet ports, since the internal fan  
operates at high speed and could cause  
personal injury.  
Press the SET button (Fig. 6 O).  
Each time the button is pressed, the air direction range will change as follows:  
1 2 3 4 5 6 7  
G Always use the remote control unit’s  
SET button to adjust the vertical airflow  
louvers. Attempting to move them  
manually could result in improper  
operation; in this case, stop operation  
and restart. The louvers should begin  
to operate properly again.  
Types of Air flow Direction Setting:  
1,2,3  
:
During Cooling / Dry modes  
1,2,3,4,5,6,7 : During Fan mode  
The remote Control Unit’s display does  
not change.  
G During Cooling and Dry modes, do not  
move the vertical air direcion louvers  
outside their proper operating range  
for the mode (1- 3) and into the fan  
region (4- 7) ; using the louvers in  
the fan region will cause moisture to  
condense near the air outlet, and water  
may drop onto the floor. During the  
Cooling / Dry modes, if the louvers are  
operated outside the range 1- 3for  
more than 30 minutes, they will  
automatically return to position 3  
range.  
G Use the air direction adjustments within the ranges shown above.  
G The vertical airflow direction is set automatically as shown, in accordance with  
the type of operation selected.  
During Cooling / Dry mode : Horizontal flow 1  
Fan mode  
: Downward flow 7  
G During AUTO mode operation, for the first minute after beginning operation,  
airflow will be horizontal 1; the air direction cannot be adjusted during this period.  
G 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.  
Right-Left Adjustment  
R
DANGER!  
G When adjusting the Right-Left Louvers, it  
is necessary to stop the Air-Conditioner  
first and make sure that it stops completely  
before adjusting the direction.  
Adjust the Right-Left louvers.  
G Move the Right-Left louvers to adjust air flow in the direction you prefer.  
knob  
knobs (three places)  
En-10  
SWING OPERATION  
Begin air conditioner operation before performing this procedure.  
To select SWING Operation  
Press the SWING button (Fig. 6 P).  
The SWING indicator lamp (orange) (Fig. 3 8) will light.  
In this mode, the Air Flow Direction Louvers will swing automatically to direct the  
air flow both up and down.  
To Stop SWING Operation  
Press the SWING button (Fig. 6 P) once again.  
The SWING indicator lamp (orange) (Fig. 3 8) will go out.  
Airflow direction will return to the setting before swing was begun.  
About Swing Operation  
G The range of swing is relative to the currently set airflow  
direction.  
G If the Remote Control Unit’s SET button is pressed during  
swing, swing will be canceled, and the Air flow direction  
will return to the setting before swing was setted.  
G The SWING operation may stop temporarily when the air  
conditioner’s fan is not operating, or when operating at  
very low speeds.  
MANUAL AUTO OPERATION  
Use the MANUAL AUTO operation in the event the Remote Control Unit is lost or otherwise unavailable.  
CAUTION!  
How To Use the Main Unit Controls  
Do not press the MANUAL AUTO button with  
wet hands or pointed objects, otherwise an  
electric shock or malfunction may occur.  
Press the AIR CLEANER RESET / MANUAL AUTO button (Fig. 2  
2) on the main unit control panel.  
To stop operation, press the AIR CLEANER RESET / MANUAL AUTO button once  
again. (Controls are located inside the Intake Grille)  
G When the air conditioner is operated  
with the controls on the Main Unit, it  
will operate under the same mode as  
the AUTO mode selected on the Re-  
mote Control Unit (see page 6).  
G The fan speed selected will be “AUTO”  
and the thermostat setting will be  
standard.  
En-11  
CLEANING AND CARE  
Before cleaning the plasma filter unit, be sure to turn off the power supply to the air conditioner.  
Electric shock may result.  
WARNING!  
CAUTION!  
G Make sure the plasma filter unit is properly mounted before cleaning or performing other tasks  
on it. If the unit is not properly mounted, it could fall off and cause damage or injury.  
G You can be injured if you touch the heat exchanger when removing or installing the plasma filter  
unit. Do not insert your fingers between the plasma filter unit and the heat exchanger.  
Cleaning the Intake Grille  
1. Remove the Intake Grille.  
Cleaning the Air Filter  
1. Open the Intake Grille, and remove the air  
filter.  
1Place your fingers at both lower ends of the grille  
panel, and lift forward; if the grille seems to catch  
partway through its movement, continue lifting up-  
ward to remove.  
Lift up the air filter’s handle, disconnect the two lower  
tabs, and pull out.  
2Pull past the intermediate catch and open the Intake  
Grill wide so that it become horizontal.  
Intake Grille  
Air filter handle  
Intake Grille  
2. Remove dust with a vacuum cleaner or  
by washing.  
After washing, allow to dry thoroughly in a shaded place.  
Mounting  
shaft  
3. Replace the Air Filter and close the Intake  
Grille.  
1Align the sides of the Air Filter with the panel, and  
push in fully, making sure the two lower tabs are re-  
turned properly to their holes in the panel.  
Knob  
2. Clean with water.  
Remove dust with a vacuum cleaner; wipe the unit with  
warm water, then dry with a clean, soft cloth.  
3. Replace the Intake Grille.  
1Pull the knobs all the way.  
2Hold the grille horizontal and set the left and right  
mounting shafts into the bearings at the top of the  
2Close the Intake Grille.  
(For purposes of example, the illustration shows the unit  
without Intake Grille installed.)  
panel.  
Mounting shaft  
Bearing  
Intake Grille  
G Dust can be cleaned from the Air Filter either with a  
vacuum cleaner, or by washing the filter in a solution of  
mild detergent and warm water. If you wash the filter, be  
sure to allow it to dry thoroughly in a shady place before  
reinstalling.  
Knob  
Intake Grille  
G If dirt is allowed to accumulate on the Air Filter, air flow  
will be reduced, lowering operating efficiency and in-  
creasing noise.  
Mounting  
shaft  
G During periods of normal use, the Air Filters should be  
cleaned every two weeks.  
Knob  
G 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.  
G When cleaning the unit’s body, do not use water hotter than 108 °F, harsh abrasive cleansers, or volatile agents like  
benzene or thinner.  
G Do not expose the unit body to liquid insecticides or hairsprays.  
G When shutting down the unit for one month or more, first allow the fan mode to operate continuously for about one-half  
day to allow internal parts to dry thoroughly.  
En-12  
CLEANING THE PLASMA AIR CLEANING FILTER  
Before cleaning the plasma filter unit, be sure to turn off the power supply to the air conditioner.  
Electric shock may result.  
WARNING!  
CAUTION!  
G Make sure the plasma filter unit is properly mounted before cleaning or performing other tasks  
on it. If the unit is not properly mounted, it could fall off and cause damage or injury.  
G You can be injured if you touch the heat exchanger when removing or installing the plasma filter  
unit. Do not insert your fingers between the plasma filter unit and the heat exchanger.  
Regarding the Air Cleaning check function  
G This function is illustrated by the flashing of the AIR CLEAN indicator lamp (green), indicating that the unit requires  
maintenance.  
After Air Cleaning Mode has been in use for approximately 400 hours, the AIR CLEAN indicator lamp (green) will begin to  
slowly flash (approximately once every 7 seconds). When this occurs, the unit requires maintenance.  
After Air Cleaning Mode has been in use for approximately 500 hours, the AIR CLEAN indicator lamp (green) will begin to  
flash quickly (approximately once every 3 seconds). At this point, Air Cleaning will cease functioning. Please carry out  
appropriate maintenance for the unit.  
G Please carry out unit maintenance every 6 months.  
G If a squeaking or chirping sound is heard, unit maintenance needs to be carried out, even if the AIR CLEAN indicator lamp  
(green) is not flashing.  
Cleaning the dust collection unit  
1. Open the intake grille and remove the air  
filter on the right.  
2. Remove the dust collection unit.  
G
Please consult the instructions for cleaning the air  
filter on page 12.  
handle  
Securely grasp the dust collection unit by the handle and  
pull it out (as shown by the arrow).  
(The above figure is only for reference, so the intake grille  
is not included).  
3. Wash with water and dry.  
1Soak the plasma filter unit in warm water (104 to  
122 °F) for 10 to 15 minutes. If the plasma filter unit is  
extremely dirty, extremely dilute a mild synthetic laun-  
dry detergent (low alkalinity or isotope detergent) to  
15 times the standard concentration and allow the  
plasma filter unit to soak in it.  
2Gently move up and down and to the right and left. A  
soft sponge can also be used to wipe the surface.  
3Rinse with clean water.  
G Only use a mild synthetic laundry detergent (low  
alkalinity or isotope detergent).  
G Never disassemble the plasma filter unit.  
G Never soak the plasma filter unit in hot water.  
G Never wipe the plasma filter unit with a scrub brush  
or other hard or abrasive items. This will damage  
the honey comb filter.  
G Never insert a brush into the inside of plasma filter  
unit for washing. This will damage the internal parts  
and cause malfunctioning of the plasma filter unit.  
4Shake the plasma filter unit to drain off the water. (If  
the plasma filter unit is extremely dirty, repeat Steps  
1through 4two or three more times.)  
G Never use dryer or other device to blow hot air on  
the plasma filter unit. This will cause deformation  
or other damage.  
5Place the plasma filter unit in the shade and allow it  
to dry completely.  
G Before re-installing the unit, please wait until it is  
completely dry. If the unit is installed when still wet  
and then put into operation, the OPERATION  
indicator lamp (red) and the TIMER indicator lamp  
(green) will flash and Air Cleaning will stop.  
En-13  
Cleaning the dust collection unit  
4. Install the unit.  
5. Install the air filter.  
(The above figure is only for reference, so the intake grille  
is not included.)  
G Please consult instructions for cleaning the air filter  
on page 12.  
6. Close the intake grille.  
Push the intake grill in at 4 points (the two ends of its  
lower side as well as two center points of the lower side,  
as shown in the figure) to close it.  
Align the two ends of the dust collection  
unit with the guide rail and slide in.  
1
Please ensure that the intake grille is  
closed properly.  
Guide rail  
G If, after cleaning the dust collection unit, the  
operation indicator lamp and the timer indicator  
lamp flash during Air Cleaning, please ensure that  
the unit is not damp and that the intake grille is  
properly closed.  
G If, after having checked that the unit is fully dry and  
that the intake grille is closed properly, the indicator  
lamps continue to flash, the dust collection unit may  
be damaged. Please consult an authorised dealer  
to obtain a replacement.  
2Slide in until it clicks.  
“Click”  
“Click”  
WARNING!  
GBe sure the Intake Grille (Fig. 1 9) is installed  
securely.  
G Please ensure that the dust collection unit is  
completely dry before installing.  
G After installing the dust collection unit, please  
ensure that it has been inserted fully into its place.  
If it has not been installed correctly, the OPERATION  
indicator lamp (red) and the TIMER indicator lamp  
(green) will flash, and Air Cleaning will stop.  
En-14  
How to install or remove the Air-  
cleaning and Deodorizing filter  
Air-cleaning and Deodorizing filter  
maintenance  
As well as ensuring the maintenance of the dust collecting  
unit, please also take care of the filter.  
(Please carry out maintenance on the filter every 6 months.)  
1. Remove the dust-collecting unit.  
G
Please consult steps 1 and 2 of cleaning the dust-  
collecting unit on page 13.  
1. Open the intake grille and remove the air  
filter from the right side.  
2. Install or remove the Air-cleaning and  
Deodorizing filter into the unit.  
1Open the filter case inside the dust-collecting unit.  
G
Please consult step 1 of cleaning the air filter on page 12.  
2. Take out the unit and remove the Air-  
Hook  
Hook  
cleaning and Deodorizing filter.  
G Please consult steps 2 and 3 of cleaning the air filter  
on page 13.  
Filter case  
3. Air-dry after washing.  
1Wash using lukewarm or warm water. If quite dirty,  
wash using a mild detergent.  
Please do not rub the filter, it may cause its Air-  
cleaning performance to be reduced.  
2Insert or remove the Air-cleaning and Deodorizing filter  
into the dust-collecting unit.  
2Rinse it under running water.  
Install  
3Allow it to dry thoroughly in a shaded place.  
4. Install the Air-cleaning and Deodorizing  
filter.  
G
Please consult the instructions on how to install the  
filter on page 15.  
Filter  
Remove  
5. Install the air filter and close the intake  
grille.  
3Close the filter case.  
G
Please consult step 3 of cleaning the air filter on  
page 12.  
Filter Case  
“Click”  
Regarding the Air-cleaning and Deodorizing filter  
Hook  
“Click”  
G Please change the filter approximately every 2 years to  
ensure good Air-cleaning performance. (This is only  
possible if the filter is cleaned once every six months)  
Hook  
G Please ensure that the filter case is properly  
closed. If the filter case is not properly closed,  
the filter could fall out.  
When changing the filter, please make sure you  
purchase the correct model (type FY5787).  
G Please only install filters that are licensed by our  
company.  
3. Install the dust-collection unit.  
G Please consult steps 6, 7 and 8 of cleaning the dust-  
collection unit on page 14.  
G Regarding storage and care of the filter, please avoid  
exposing it to high temperatures and high humidity.  
Also, use it as soon as possible after opening its  
packaging.  
When removing the filter, please follow these  
steps backwards.  
En-15  
TROUBLESHOOTING  
In the event of a malfunction (burning smell, etc.), immediately stop operation, disconnect the  
Power Supply Plug, and consult authorized service personnel.  
WARNING!  
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  
Doesn’t operate  
immediately:  
G If the unit is stopped and then immediately started again, the com-  
pressor will not operate for about 3 minutes, in order to prevent  
fuse blowouts.  
NORMAL  
FUNCTION  
G
Whenever the Power Supply Plug is disconnected and then re-  
connected to a power outlet, the protection circuit will operate for  
about 3 minutes, preventing unit operation during that period.  
Noise is heard:  
G During operation and immediately after stopping the unit, the  
sound of water flowing in the air conditioner’s piping may be  
heard. Also, noise may be particularly noticeable for about 2 to 3  
minutes after starting operation (sound of coolant flowing).  
G During operation, a slight squeaking sound may be heard. This is  
the result of minute expansion and contraction of the front cover  
due to temperature changes.  
G
During Heating operation, a sizzling sound may be heard occasional.  
This sound is produced by the Automatic Defrosting operation.  
17  
Smells:  
G 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 air conditioner.  
Mist or steam are  
emitted:  
G 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 air emitted from the air conditioner, resulting in  
condensation and misting.  
G During Heating operation, the outdoor unit’s fan may stop, and  
steam may be seen rising from the unit. This is due to Automatic  
Defrosting operation.  
17  
Airflow is weak or stops:  
G When Heating operation is started, fan speed is temporarily very  
low, to allow internal parts to warm up.  
G During Heating operation, if the room temperature rises above  
the thermostat 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 for a higher setting.  
G During Heating operation, the unit will temporarily stop opera-  
tion (between 7 and 15 minutes) as the Automatic Defrosting mode  
operates. During Automatic Defrosting operation, the OPERATION  
indicator lamp will flash.  
17  
G The fan may operate at very low speed during Dry operation or  
when the unit is monitoring the room’s temperature.  
5
5
G During SUPER QUIET operation, the fan will operate at very low  
speed.  
G In the monitor AUTO operation, the fan will operate at very low  
speed.  
5
Water is produced from  
the outdoor unit:  
G During Heating operation, water may be produced from the out-  
door unit due to Automatic Defrosting operation.  
17  
The AIR CLEAN indicator  
lamp (green) will begin to  
slowly flash (as shown in  
the figure):  
G After approximately 400 hours of Air Cleaning Mode use, the AIR  
CLEAN indicator lamp will begin to flash slowly (as shown in the  
figure). When this occurs, please stop the system, remove the  
mains socket and carry out maintenance on the dust collecting  
unit's air filter.  
13 - 14  
G After approximately 500 hours of Air Cleaning Mode use, the AIR  
CLEAN indicator lamp will begin to flash quickly (as shown in the  
figure). At this point, Air Cleaning will stop functioning. Please 13 - 14  
stop the system, remove the mains socket and carry out  
maintenance on the dust collecting unit's air filter.  
The AIR CLEAN indicator  
lamp (green) will begin to  
flash quickly (as shown in  
the figure):  
En-16  
TROUBLESHOOTING  
Items to check  
Symptom  
See Page  
G Is the Power Supply Plug disconnected its outlet?  
G Has there been a power failure?  
CHECK ONCE Doesn’t operate at all:  
MORE  
G Has a fuse blown out, or a circuit breaker been tripped?  
G Is the timer operating?  
8 - 9  
G Is the air filter dirty?  
G Air the air conditioner’s intake grille or outlet port blocked?  
Poor Cooling or Heating  
performance:  
G Did you adjust the room temperature settings (thermostat)  
correctly?  
G Is there a window or door open?  
G In the case of Cooling operation, is a window allowing bright sun-  
light to enter? (Close the curtains.)  
G In the case of Cooling operation, are there heating apparatus and  
computers inside the room, or are there too many people in the  
room?  
G Is the unit set for SUPER QUIET operation?  
5
4
The unit operates  
differently from the Remote  
Control Unit’s setting:  
G Are the Remote Control Unit’s batteries dead?  
G Are the Remote Control Unit’s batteries loaded properly?  
If the problem persists after performing these checks, or if you notice burning smells, or the TIMER indicator lamp (Fig. 3 6)  
flashes, immediately stop operation, disconnect the Power Supply Plug (Fig. 1 D), and consult authorized service personnel.  
OPERATING TIPS  
Operation and Performance  
Microcomputer-controlled Automatic Defrosting  
G When using the Heating mode under conditions of low outdoor 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 briefly (for  
about 7-15 minutes).  
During Automatic Defrosting operation, the OPERATION indicator lamp (red) will flash.  
AUTO Restart  
In Event of Power Interruption  
G The air conditioner power has been interrupted by a  
power failure. The air conditioner will then restart auto-  
matically in its previous mode when the power is restored.  
G
If a power failure occurs during TIMER operation, the timer  
will be reset and the unit will begin (or stop) operation at the  
new time setting. In the event that this (kind of timer fault  
occurs the TIMER Indicator Lamp will flash (see Page. 3)).  
G Operated by setting before the power failure.  
G 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  
disconnect the Power Supply Plug, reconnect it, and then  
use the Remote Control Unit to resume operation.  
En-17  
OPERATING TIPS  
Temperature and Humidity Range  
Cooling/Dry Mode  
About 32 to 115 °F  
About 64 to 90 °F  
Outdoor temperature  
Indoor temperature  
About 80% or less  
Outdoor temperature  
68°F or obove  
If the unit is used for long periods under high-humidity  
conditions, condensation may form on the surface of  
the indoor unit, and drip onto the floor or other objects  
underneath.  
Indoor Humidity  
Outdoor temperature  
below 68°F  
About 50% or less  
En-18  

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