Fujitsu Air Conditioner ASU9RMLQ ASU12RMLQ AOU24RML AOU36RML User Manual

 
CONTENTS  
SAFETY PRECAUTIONS .................................... En-1  
NAME OF PARTS ................................................ En-2  
FEATURES AND FUNCTIONS ........................... En-3  
PREPARATION .................................................... En-4  
OPERATION ........................................................ En-5  
AIR CLEANING OPERATION .............................. En-7  
TIMER OPERATION ............................................ En-8  
SLEEP TIMER OPERATION ................................ En-9  
ADJUSTING THE DIRECTION OF  
AIR CIRCULATION ............................................ En-10  
SWING OPERATION ......................................... En-11  
COIL DRY OPERATION ..................................... En-11  
MANUAL AUTO OPERATION .......................... En-11  
CLEANING AND CARE ..................................... En-12  
CLEANING THE PLASMA AIR CLEANING FILTER .. En-13  
TROUBLESHOOTING ....................................... En-16  
OPERATING TIPS.............................................. En-17  
SAFETY PRECAUTIONS  
G Do not attempt to install this air conditioner by yourself.  
G This unit contains no user-serviceable parts. Always consult authorized service per-  
sonnel for repairs.  
DANGER!  
G When moving, consult authorized service personnel for disconnection and installa-  
tion of the unit.  
G Do not become excessively chilled by staying for lengthy periods in the direct cooling  
airflow.  
G Do not insert fingers or objects into the outlet port or intake grilles.  
G Do not start and stop air conditioner operation by disconnecting the power supply  
cord and so on.  
G Take care not to damage the power supply cord.  
G In the event of a malfunction (burning smell, etc.), immediately stop operation, dis-  
connect the power supply plug, and consult authorized service personnel.  
G If the power supply cord of this appliance is damaged, it should only be replaced by  
the authorized service personal, since special purpose tools and specified cord are  
required.  
G Provide occasional ventilation during use.  
CAUTION!  
G Do not direct air flow at fireplaces or heating apparatus.  
G Do not climb on, or place objects on, the air conditioner.  
G Do not hang objects from the indoor unit.  
G Do not set flower vases or water containers on top of air conditioners.  
G Do not expose the air conditioner directly to water.  
G Do not operate the air conditioner with wet hands.  
G Do not pull power supply cord.  
G Turn off power source when not using the unit for extended periods.  
G Check the condition of the installation stand for damage.  
G Do not place animals or plants in the direct path of the air flow.  
G Do not drink the water drained from the air conditioner.  
G Do not use in applications involving the storage of foods, plants or animals, precision  
equipment, or art works.  
G Do not apply any heavy pressure to radiator fins.  
G Operate only with air filters installed.  
G Do not block or cover the intake grille and outlet port.  
G Ensure that any electronic equipment is at least one metre away from either the in-  
door or outdoor units.  
G Avoid installing the air conditioner near a fireplace or other heating apparatus.  
G When installing the indoor and outdoor units, take precautions to prevent access by  
infants.  
G Do not use inflammable gases near the air conditioner.  
En-1  
 
NAME OF PARTS  
Fig. 1 Indoor Unit  
Fig. 5 Remote Control Unit  
1 Operating Control Panel (Fig. 2)  
2 AIR CLEANER RESET / MANUAL AUTO  
button  
E MASTER CONTROL button  
F SET TEMP. buttons (5/)  
G Signal Transmitter  
H TIMER MODE button  
I FAN CONTROL button  
J START/STOP button  
K AIR CLEAN button  
L SET button  
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.  
M SWING button  
N RESET button  
O CLOCK ADJUST button  
P TEST RUN button  
3 Indicator Lamps (Fig. 3)  
4 Remote Control Signal Receiver  
5 OPERATION Indicator Lamp (red)  
6 TIMER Indicator Lamp (green)  
Perform a test run only when installing the  
air conditioner. If the signal to perform a  
test run is received during normal opera-  
tion, the air conditioner’s thermostat will  
malfunction.  
If the TIMER indicator lamp flashes when  
the timer is operating, it indicates that a  
fault has occurred with the timer setting  
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.  
(See Page 17 Auto Restart).  
7 AIR CLEAN Indicator Lamp (green)  
8 COIL DRY Indicator Lamp (orange)  
9 Intake Grille (Fig. 4)  
0 Air Filter  
A Air Flow Direction Louver  
B Right-Left Louver  
(behind Air Flow Direction Louver)  
C Drain Hose  
D Electrical Air Cleaning Filter  
To stop the test operation mode, press the  
START/STOP button to stop the air condi-  
tioner.  
Q COIL DRY button  
R SLEEP button  
S SET TIME button (+/–)  
T Remote Control Unit Display (Fig. 6)  
U Transmit Indicator  
V Clock Display  
W Operating Mode Display  
X Timer Mode Display  
Y Fan Speed Display  
Z Temperature Set Display  
[ SWING Display  
\ AIR CLEAN Display  
] COIL DRY Display  
Refer to the folded out page on the cover.  
En-2  
 
FEATURES AND FUNCTIONS  
AUTO CHANGEOVER  
PROGRAM TIMER  
The operation mode (cooling, heating) is switched automati-  
cally to maintain the set temperature, and the temperature  
is kept constant at all times.  
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 pe-  
riod.  
SLEEP TIMER  
When SLEEP is selected be pressing TIMER button during  
Heating mode, the air conditioners 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.  
MILDEW-RESISTANT FILTER  
The AIR FILTER has been treated to resist mildew growth,  
thus allowing cleaner use and easier care.  
SUPER QUIET OPERATION  
SWING OPERATION  
When the FAN CONTROL button is used to select QUIET,  
the unit begins super-quiet operation; the indoor units air-  
flow is reduced to produce quieter operation.  
The Air Flow Direction Louvers swings automatically up and  
down so that the air speeds to every nook and corner of  
your room.  
AIR CLEANING MODE  
WIRELESS REMOTE CONTROL UNIT  
Relies on the air conditioners power to quickly purify the  
air in the room.  
The Wireless Remote Control Unit allows convenient con-  
trol of air conditioner operation.  
ELECTRONIC AIR CLEAN FILTER  
INVERTER  
Install for use inside of the dust collection unit. For details  
on how to install the filter, please refer to page 15.  
At the start of operation, a large power is used to bring the  
room quickly to the desired temperature. Afterwards, the  
unit automatically switches to a low power setting for eco-  
nomic and comfortable operation.  
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.  
COIL DRY OPERATION  
The Indoor unit can be dried by pressing the COIL DRY but-  
ton on the Remote Control Unit so as to avoid going moldy  
and restrain the breed of bacterium.  
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 cant be turned ON/OFF. (During operation, it is always ON)  
QUIET cant be selected in FAN MODE.  
Sleep-timer cant be used.  
COIL DRY OPERATION cant be used.  
And you cant use both wired remote control unit and wireless simultaneously.  
(Only one kind can be selected)  
En-3  
 
PREPARATION  
CAUTION!  
Turn on the Power  
Take care to prevent infants from  
accidentally swallowing batteries.  
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.  
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.  
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.  
Do not attempt to recharge dry batteries.  
Never mix new and used batteries, or  
batteries of different types.  
Insert batteries.  
2
3
Be sure to align the battery polarities (  
) correctly.  
Batteries should last about one year  
under normal use. If the remote control  
units 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 CLOCK ADJUST button (Fig. 5 O).  
1
2
Use the tip of a ball-point pen or other small object to press the button.  
Use the + / SET TIME buttons (Fig. 5 S) 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 CLOCK ADJUST button again.  
This completes the time setting and starts the clock.  
3
To Use the Remote Control Unit  
The Remote Control Unit must be pointed at signal receiver (Fig. 1 4) 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 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.5 J).  
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.5 E) 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  
About three seconds later, the entire display will reappear.  
t
HEAT  
Example: When set to COOL.  
To Set the Thermostat  
Press the SET TEMP. buttons (Fig. 5 F).  
5 button: Press to raise the thermostat setting.  
button: Press to lower the thermostat setting.  
GThermostat setting range:  
AUTO .................................. 64 to 88 °F  
Heating ............................... 60 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. 5 I).  
Each time the button is pressed, the fan speed changes in the following order:  
s
s
s
s
s
AUTO  
HIGH  
MED  
LOW  
QUIET  
About three seconds later, the entire display will reappear.  
When set 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.  
Example: When set to AUTO.  
When set to QUIET:  
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.5 J).  
The OPERATION indicator lamp (red) (Fig. 3 5) will go out.  
En-5  
 
OPERATION  
About AUTO CHANGEOVER Operation  
AUTO:  
When AUTO CHANGEOVER operation first selected, the fan will oper-  
ate at very low speed for about one minute, during which time the unit  
detects the room conditions and selects the proper operating mode.  
If the differance between thermostat setting and actual room tempera-  
ture is more than +4 °F Cooling  
If the difference between thermostat setting and actual room tempera-  
ture is within 4 °F Monitor operation  
If the difference between thermostat setting and actual room tempera-  
ture is more than 4 °F Heating operation  
When the air conditioner has adjusted your rooms 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 tem-  
perature subsequently changes, the air conditioner will once again  
select the appropriate operation (Heating, Cooling) to adjust the tem-  
perature to the value set in the thermostat.  
(The monitor operation range is 4 °F relative to the thermostat setting.)  
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  
During Heating mode:  
Set the thermostat to a temperature set-  
ting that is higher than the current room  
temperature. The Heating mode will not  
operate if the thermostat is set lower than  
the actual room temperature.  
low fan speed for about 3 to 5 minutes, after which it will switch to the  
selected fan setting. This period of time is provided to allow the indoor  
unit to warm up before beginning full operation.  
When the room 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. During Automatic Defrosting operation, the OPERATION indica-  
tor lamp (red) will flash, and the heat operation will be interrupted.  
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).  
Cooling: Use to cool your room.  
Dry:  
Use for gently cooling while dehumidifying your room.  
You cannot heat the room during Dry mode.  
During Fan mode:  
You can not use the unit to heat and cool  
your room.  
During Dry mode, the unit will operate at low speed; in order to adjust  
room humidity, the indoor units 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.  
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. 5 J).  
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. 5 K).  
2
The AIR CLEAN indicator lamp (Fig. 3 7) will light up (green, as shown in  
the figure).  
Air conditioning and Air Cleaning will function simultaneously.  
If you wish to stop Air Clean  
Press the AIR CLEAN button (Fig. 5 K) once again.  
The AIR CLEAN indicator lamp (green) will switch off (as shown in the figure).  
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. 5 J).  
The operation indicator lamp (Fig. 3 5) will go out (red, as shown in the figure).  
The next time the START / STOP button (Fig. 5 J) is pressed air conditioning  
and air cleaning will both resume operating.  
Air cleaning  
During operation, the unit produces a small amount of ozone that can be smelled.  
When this unit is used in combination with the ultrasonic humidifier, white parti-  
cles may become attached to the plasma filter unit. If this happens, clean the  
plasma filter unit as soon as possible. (Refer to page 14.)  
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.  
If the intake filter is removed during operation, a safety device will stop the op-  
eration 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.  
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.  
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. 5 J).  
(if the unit is already operating, proceed to step 2).  
The indoor units OPERATION Indicator Lamp (red) (Fig. 3 5) will light.  
Use the TIMER MODE button to select  
TIMER RESET.  
The air conditioner will return to normal  
operation.  
1
To Change the Timer Settings  
Press the TIMER MODE button (Fig. 5 H) to select the  
OFF timer or ON timer operation.  
Each time the button is pressed the timer function changes in the follow-  
ing order:  
Perform steps 2 and 3.  
2
To Stop Air Conditioner Operation while  
the Timer is Operating  
Press the START / STOP button.  
RESET  
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 units green TIMER lamp (Fig. 3 6) will light.  
Use the SET TIME button (Fig. 5 S) 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. 5 J).  
(if the unit is already operating, proceed to step 2).  
The indoor units OPERATION Indicator Lamp (red) (Fig. 3 5) will light.  
Use the TIMER MODE 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 Timerto set the desired  
1. Follow the instructions given in the  
section To Use the ON Timer or OFF  
Timerto select the timer setting you  
wish to change.  
mode and times.  
About three seconds later, the entire display will reappear.  
The indoor units TIMER Indicator Lamp (green) (Fig. 3 6) will light.  
2. Press the TIMER MODE button to select  
either OFF  
ON or OFF  
ON.  
Press the TIMER MODE button (Fig. 5 H) to select  
the PROGRAM timer operation (OFF ON or OFF  
ON will display).  
The display will alternately show OFF timerand ON timer, then change  
To Stop Air Conditioner Operation while  
the Timer is Operating  
3
Press the START / STOP button.  
To Change Operating Conditions  
to show the time setting for the operation to occur first.  
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 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  
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.  
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 Units  
Display (OFF  
ON or OFF  
ON ).  
One example of Program timer use might be to have the air conditioner auto-  
matically stop ( OFF timer ) after you go to sleep, then start ( ON timer) automati-  
cally 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 MODE button to select  
TIMER RESET.  
The air conditioner will return to normal  
operation.  
While the air conditioner is operating or stopped, press the  
SLEEP button (Fig. 5 R).  
The indoor units OPERATION Indicator Lamp (red) (Fig. 3 5) lights and the TIMER  
Indicator Lamp (green) (Fig. 3 6) light.  
To Stop the Air Conditioner During  
Timer Operation:  
To Change the TIMER Settings  
Press the START / STOP button.  
Press the SLEEP button (Fig. 5 R) once again and set the time  
using the SET TIME buttons (Fig. 5 S).  
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 Heating operation:  
During Cooling/Dry operation:  
When the SLEEP timer is set, the thermostat setting is  
automatically lowered 2 °F every thirty minutes. When the  
thermostat has been lowered a total of 8 °F, the thermostat  
setting at that time is maintained until the set time has elapsed,  
at which time the air conditioner automatically turns off.  
When the SLEEP timer is set, the thermostat setting is auto-  
matically raised 2 °F every sixty minutes. When the thermo-  
stat 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  
SLEEP timer setting  
2 °F  
Set time  
1 hour  
4 °F  
6 °F  
8 °F  
30  
minutes  
1 hour  
4 °F  
2 °F  
1 hour  
30 minutes  
Set time  
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  
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. 5 L).  
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 op-  
eration; in this case, stop operation and  
restart. The louvers should begin to  
operate properly again.  
Types of Air flow Direction Setting:  
1,2,3  
4,5,6,7  
:
:
During Cooling/Dry modes  
During Heating mode  
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 wa-  
ter 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 auto-  
matically 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  
During Heating/Fan mode : Downward flow 7  
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.  
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 pe-  
riod.  
DANGER!  
Right-Left Adjustment  
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. 5 M).  
The SWING Display (Fig. 6 [) 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. 5 M) once again.  
The SWING Display (Fig. 6 [) will go out.  
Airflow direction will return to the setting before swing was begun.  
About Swing Operation  
During cooling/Dry mode : Swings between 1 and 3.  
During heating mode  
: Swings between 3 and 7.  
G The SWING operation may stop temporarily when the air conditioner’s fan is not  
operating, or when operating at very low speeds.  
COIL DRY OPERATION  
The Indoor unit can be dried by pressing the COIL DRY button on the Remote Control Unit so as to avoid going moldy and  
restrain the breed of bacterium.  
The COIL DRY Operation will operate for 30 minutes after pressing the COIL DRY button and it will stop automatically.  
To select COIL DRY Operation  
Press the COIL DRY button (Fig. 5 Q) during operation or when  
it stops.  
The COIL DRY indicator lamp (orange) (Fig. 3 8) and the COIL DRY Display (Fig. 6  
]) will light. Then it will disappear after 30 minutes.  
To cancel COIL DRY Operation  
Press the START/STOP button (Fig. 5 J) during COIL DRY  
Operation.  
The COIL DRY indicator lamp (orange) (Fig. 3 8) and the COIL DRY Display (Fig. 6  
]) will go out . Then the operation stops.  
About COIL DRY Operation  
G Press the COIL DRY button again during COIL DRY Operation, COIL DRY Opera-  
tion can be reset.  
G The COIL DRY Operation cannot get rid of the existed mould or bacterium, and it  
has no sterilization effect either.  
G When the COIL DRY Operation is used, stop all indoor units and operate one unit  
at a time.  
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  
G When the air conditioner is operated  
with the controls on the Main Unit, it  
again. (Controls are located inside the Intake Grille)  
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!  
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.  
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  
1 Place 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.  
filter.  
Lift up the air filters handle, disconnect the two lower  
tabs, and pull out.  
2 Pull 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.  
1 Align 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.  
1 Pull the knobs all the way.  
2 Hold the grille horizontal and set the left and right  
mounting shafts into the bearings at the top of the  
2 Close the Intake Grille.  
(For purposes of example, the illustration shows the unit  
without Intake Grille installed.)  
panel.  
Mounting shaft  
Bearing  
Intake Grille  
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  
If dirt is allowed to accumulate on the Air Filter, air flow  
will be reduced, lowering operating efficiency and in-  
creasing noise.  
Mounting  
shaft  
During periods of normal use, the Air Filters should be  
cleaned every two weeks.  
Knob  
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 units body, do not use water hotter than 108 °F, harsh abrasive cleansers, or volatile agents like  
benzene or thinner.  
Do not expose the unit body to liquid insecticides or hairsprays.  
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!  
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.  
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  
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.  
Please carry out unit maintenance every 6 months.  
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.  
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.  
1 Soak 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.  
2 Gently move up and down and to the right and left. A  
soft sponge can also be used to wipe the surface.  
3 Rinse with clean water.  
Only use a mild synthetic laundry detergent (low  
alkalinity or isotope detergent).  
Never disassemble the plasma filter unit.  
Never soak the plasma filter unit in hot water.  
Never wipe the plasma filter unit with a scrub brush  
or other hard or abrasive items. This will damage  
the honey comb filter.  
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.  
4 Shake the plasma filter unit to drain off the water. (If  
the plasma filter unit is extremely dirty, repeat Steps  
1 through 4 two or three more times.)  
Never use dryer or other device to blow hot air on  
the plasma filter unit. This will cause deformation  
or other damage.  
5 Place the plasma filter unit in the shade and allow it  
to dry completely.  
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 indi-  
cator 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.)  
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 collec-  
tion unit with the guide rail and slide  
1
Please ensure that the intake grille is  
closed properly.  
in.  
Guide rail  
If, after cleaning the dust collection unit, the opera-  
tion 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 prop-  
erly closed.  
If, after having checked that the unit is fully dry and  
that the intake grille is closed properly, the indica-  
tor lamps continue to flash, the dust collection unit  
may be damaged. Please consult an authorised  
dealer to obtain a replacement.  
2 Slide in until it clicks.  
Click”  
Click”  
WARNING!  
Be sure the Intake Grille (Fig. 1 9) is installed se-  
curely.  
Please ensure that the dust collection unit is  
completely dry before installing.  
After installing the dust collection unit, please en-  
sure 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.  
Please consult steps 1 and 2 of cleaning the dust-  
collecting unit on page 13.  
1. Take out the unit and remove the Air-  
cleaning and Deodorizing filter.  
2. Install or remove the Air-cleaning and  
Deodorizing filter into the unit.  
1 Open the filter case inside the dust-collecting unit.  
Please consult steps 1, 2-1 and 2-2 of how to install  
or remove the Air-cleaning and Deodorizing filter on  
page 15.  
Hook  
Hook  
2. Air-dry after washing.  
Filter case  
1 Wash 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.  
2 Rinse it under running water.  
2 Insert or remove the Air-cleaning and Deodorizing fil-  
ter into the dust-collecting unit.  
3 Allow it to dry thoroughly in a shaded place.  
3. Install the Air-cleaning and Deodorizing  
filter.  
Install  
Please consult step 2-3 of how to install or remove  
the Air-cleaning and Deodorizing filter on page 15.  
4. Install the air filter and close the intake  
grille.  
Filter  
Remove  
Please consult step 3 of cleaning the air filter on  
page 12.  
3 Close the filter case.  
Regarding the Air-cleaning and Deodorizing filter  
Filter Case  
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)  
Click”  
Hook  
Click”  
When changing the filter, please make sure you pur-  
Hook  
chase the correct model (type FY5787).  
Please ensure that the filter case is properly  
closed. If the filter case is not properly closed,  
the filter could fall out.  
Please only install filters that are licensed by our com-  
pany.  
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 pack-  
aging.  
3. Install the dust-collection unit.  
Please consult steps 4, 5 and 6 of cleaning the dust-  
collection unit on page 14.  
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 units 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  
Doesnt operate immedi-  
ately:  
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.  
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.  
NORMAL  
FUNCTION  
Noise is heard:  
During operation and immediately after stopping the unit, the  
sound of water flowing in the air conditioners piping may be  
heard. Also, noise may be particularly noticeable for about 2 to 3  
minutes after starting operation (sound of coolant flowing).  
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.  
During Heating operation, a sizzling sound may be heard occasionally.  
This sound is produced by the Automatic Defrosting operation.  
17  
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 air conditioner.  
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 air emitted from the air conditioner, resulting in  
condensation and misting.  
During Heating operation, the outdoor units fan may stop, and  
steam may be seen rising from the unit. This is due to the Auto-  
matic Defrosting operation.  
17  
When Heating operation is started, fan speed is temporarily very  
low, to allow internal parts to warm up.  
Airflow is weak or stops:  
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 to a higher setting.  
During Heating operation, the unit will temporarily stop opera-  
tion (between 7 and 15 minutes) as the Automatic Defrosting mode  
operates. During the Automatic Defrosting operation, the OPERA-  
TION indicator lamp will flash.  
17  
The fan may operate at very low speed during Dry operation or  
when the unit is monitoring the rooms temperature.  
5
5
5
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 differ-  
ent operation modes as shown below, the units operated after-  
ward will stop and the OPERATION indicator lamp (red) will flash.  
Heating mode and cooling mode (or dry mode)  
18  
17  
Heating mode and fan mode  
Water is produced from  
the outdoor unit:  
During Heating operation, water may be produced from the out-  
door unit due to the Automatic Defrosting operation.  
The AIR CLEAN indicator  
lamp (green) will begin to  
slowly flash (as shown in  
the figure):  
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 13 - 14  
mains socket and carry out maintenance on the dust collecting  
units air filter.  
The AIR CLEAN indicator  
lamp (green) will begin to  
flash quickly (as shown in  
the figure):  
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  
stop the system, remove the mains socket and carry out mainte-  
nance on the dust collecting units air filter.  
13 - 14  
En-16  
 
TROUBLESHOOTING  
Items to check  
Symptom  
See Page  
Is the Power Supply Plug disconnected its outlet?  
Has there been a power failure?  
CHECK ONCE Doesnt operate at all:  
MORE  
Has a fuse blown out, or a circuit breaker been tripped?  
Is the timer operating?  
8 - 9  
Poor Cooling or Heating Is the air filter dirty?  
performance:  
Air the air conditioners intake grille or outlet port blocked?  
Did you adjust the room temperature settings (thermostat) cor-  
rectly?  
Is there a window or door open?  
In the case of Cooling operation, is a window allowing bright sun-  
light to enter? (Close the curtains.)  
In the case of Cooling operation, are there heating apparatus and  
computers inside the room, or are there too many people in the  
room?  
Is the unit set for SUPER QUIET operation?  
5
4
The unit operates  
differently from the Remote  
Control Units setting:  
Are the Remote Control Units batteries dead?  
Are the Remote Control Units 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, turn off the circuit breaker, and consult authorized service personnel.  
OPERATING TIPS  
Operation and Performance  
Microcomputer-controlled Automatic Defrosting  
Heating Performance  
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 per-  
formance.  
In order to prevent this kind of reduced performance, this  
unit is equipped with a Microcomputer-controlled Auto-  
matic Defrosting function. If frost forms, the air condi-  
tioner will temporarily stop, and the defrosting circuit will  
operate briefly (for about 7-15 minutes).  
This air conditioner operates on the heat-pump princi-  
ple, 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  
insufficient heating performance is being produced, we  
recommend you use this air conditioner in conjunction  
with another kind of heating appliance.  
Heat-pump air conditioners heat your entire room by  
recirculating air throughout the room, with the result that  
some time may be required after first starting the air con-  
ditioner until the room is heated.  
During Automatic Defrosting operation, the OPERATION  
indicator lamp (red) will flash.  
AUTO Restart  
In Event of Power Interruption  
The air conditioner power has been interrupted by a power  
failure. The air conditioner will then restart automatically  
in its previous mode when the power is restored.  
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)).  
Operated by setting before the power failure.  
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  
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 operated in multiple locations. The indoor units may be operated simultaneously, in accordance with their respective  
output.  
Simultaneous Use of Multiple Units  
Operation can be done in the following different operat-  
ing modes.  
When using a multi-type air conditioner, the multiple  
indoor units can be operated simultaneously, but when  
two or more indoor units of the same group are oper-  
ated simultaneously, the heating and cooling efficiency  
will be less than when a single indoor unit is used alone.  
Accordingly, when you wish to use more than one in-  
door unit for cooling at the same time, the use should  
be concentrated at night and other times when less out-  
put 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.  
Cooling mode and dry mode  
Cooling mode and fan mode  
Dry mode and fan mode  
Heating mode and COIL DRY mode  
The operating mode (heating (COIL DRY) mode or cool-  
ing (dry) mode) of the outdoor unit will be determined  
by the operating mode of the indoor unit that was oper-  
ated first. If the indoor unit was started in fan mode, the  
operating mode of the outdoor unit will not be deter-  
mined.  
Seasonal and outdoor temperature conditions, the struc-  
ture of the rooms and the number of persons present  
may also result in differences of operating efficiency.  
We recommend that you try various operating patterns  
in order to confirm the level of heating and cooling out-  
put provided by your units, and use the units in the way  
that best matches your familys lifestyle.  
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 opera-  
tion in fan mode but when indoor unit (B) started oper-  
ating in heating mode, the OPERATION indicator lamp  
(red) for indoor unit (A) would begin to flash (1 second  
on, 1 second off) and it would go into standby mode.  
Indoor unit (B) would continue to operate in heating  
mode.  
If you discover that one or more units delivers a low  
level of cooling or heating during simultaneous opera-  
tion, we recommend that you stop simultaneous opera-  
tion of the multiple units.  
Operation cannot be done in the following different op-  
erating modes.  
If the indoor unit is instructed to do an operating mode  
that it cannot perform, the OPERATION indicator lamp  
(red) on the indoor unit will flash (1 second on, 1 sec-  
ond off) and the unit will go into the standby mode.  
Heating (COIL DRY) mode and cooling mode (or dry  
mode)  
Heating (COIL DRY) mode and fan mode  
Notice  
During use of the heating mode, the outdoor unit will  
occasionally 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.  
During use of 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.  
Temperature and Humidity Range  
Cooling/Dry Mode  
Heating Mode  
About 14 to 75 °F  
88 °F or less  
Outdoor temperature  
Indoor temperature  
About 32 to 115 °F  
About 64 to 90 °F  
About 80% or less  
If the unit is used for long pe-  
Outdoor temperature  
riods under high-humidity  
conditions, condensation may  
form on the surface of the in-  
door unit, and drip onto the  
floor or other objects under-  
neath.  
68 °F or above  
Indoor Humidity  
Outdoor temperature  
below 68 °F  
About 50% or less  
En-18  
 

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