Fujitsu Air Conditioner AOU15RLQ User Manual

OPERATING MANUAL  
MODE D’EMPLOI  
MANUAL DE FUNCIONAMIENTO  
HEAT&COOLING MODEL  
(REVERSE CYCLE)  
ROOM AIR CONDITIONER  
WALL MOUNTED TYPE  
Indoor Unit  
ASU15RLQ  
ASU18RLQ  
Outdoor Unit  
AOU15RLQ  
AOU18RLQ  
KEEP THIS OPERATION MANUAL  
FOR FUTURE REFERENCE  
P/N9314969027-01  
FUJITSU GENERAL LIMITED  
 
Fig. 1  
1
D
2
Fig. 2  
3
C
COIL DRY  
AIR CLEAN  
OPERATION  
TIMER  
=
AB  
5
6
4
7
8
@
#
Fig. 3  
Fig. 5  
9
I
G
H
J
Fig. 4  
Fig. 6  
K
Ÿ
¤
)
(
_
+
¡
¢
£
§
º
°
ª
Fig. 7  
To facilitate explanation, the accompanying illustra-  
tion has been drawn to show all possible indicators;  
in actual operation, however, the display will only  
show those indicators appropriate to the current op-  
eration.  
 
FEATURES AND FUNCTIONS  
INVERTER  
SWING OPERATION  
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.  
TheAir Flow Direction Louvers swings automatically up and  
down so that the air speeds to every nook and corner of  
your room.  
REMOVABLE OPEN PANEL  
COIL DRY OPERATION  
The indoor units Open Panel can be removed for easy clean-  
ing and maintenance.  
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.  
MILDEW-RESISTANT FILTER  
AUTO CHANGEOVER  
The AIR FILTER has been treated to resist mildew growth,  
thus allowing cleaner use and easier care.  
The operation mode (cooling, dry, heating) is switched au-  
tomatically to maintain the set temperature, and the tem-  
perature is kept constant at all times.  
SUPER QUIET OPERATION  
When the FAN CONTROL button is used to select QUIET, the  
unit begins super-quiet operation; the indoor units airflow  
is reduced to produce quieter operation.  
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 pe-  
riod.  
AIR CLEANING MODE  
Relies on the air conditioners power to quickly purify the air  
in the room.  
SLEEP TIMER  
When the SLEEP button is pressed during Heating mode,  
the air conditioners thermostat setting is gradually lowered  
during the period of operation; during cooling mode, the  
thermostat setting is gradually raised during the period of  
operation. When the set time is reached, the unit automati-  
cally turns off.  
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.  
WIRED REMOTE CONTROL UNIT (OPTION)  
The optional wired remote control unit (model No.: UTB-UUB) 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-2  
 
NAME OF PARTS  
Fig. 1 Indoor Unit  
Fig. 6 Remote Control Unit  
1Operating Control Panel (Fig. 2)  
2MANUAL AUTO button  
KSignal Transmitter  
LMASTER CONTROL button  
MFAN CONTROL button  
NSTART/STOP button  
OAIR CLEAN button  
PCOIL DRY button  
When kept on pressing the MANUAL  
AUTO button for more than 10 seconds,  
the forced cooling operation will start.  
The forced cooling operation is used at the  
time of installation.  
Only for authorized service personnels  
use.  
QSET button  
RSET TEMP. button (  
SSLEEP button  
/
)
When the forced cooling operation starts  
by any chance, press the START/STOP  
button to stop the operation.  
TSWING button  
UTIMER MODE button  
VTIMER SET (  
WTEST RUN button  
/
)buttons  
3Indicator (Fig. 3)  
4Remote Control Signal Receiver  
5OPERATION Indicator Lamp (red)  
6TIMER Indicator Lamp (green)  
This button is used when installing the  
conditioner, and should not be used un-  
der normal conditions, as it will cause the  
air conditioners thermostat function to op-  
erate incorrectly.  
If this button is pressed during normal op-  
eration, the unit will switch to test opera-  
tion mode, and the Indoor Units OPERA-  
TION Indicator Lamp and TIMER Indicator  
Lamp will begin to flash simultaneously.  
To stop the test operation mode, press the  
START/STOP button to stop the air condi-  
tioner.  
If the TIMER indicator lamp flashes when  
the timer is operating, it indicates that a  
fault has occurred with the timer setting  
(See Page 17 Auto Restart).  
7AIR CLEAN Indicator Lamp (green)  
8COIL DRY Indicator Lamp (orange)  
9Intake Grille (Fig. 4)  
0Air Filter  
AAir Flow Direction Louver  
BRight-Left Louver  
XCLOCK ADJUST button  
YRESET button  
ZRemote Control Unit Display (Fig. 7)  
[Temperature SET Display  
\Transmit Display  
]Operating Mode Display  
`Fan Speed Display  
aAIR CLEAN Display  
bSWING Display  
(behind Air Flow Direction Louver)  
CDrain Hose  
DElectrical Air Cleaning Filter  
EPower Supply Cord  
FPower Supply Plug  
cCOIL DRY Display  
dTimer Mode Display  
eSLEEP Display  
Fig. 5 Outdoor Unit  
GIntake Port  
HOutlet Port  
fClock Display  
IPipe Unit  
JDrain port (bottom)  
Refer to the folded out page on the cover.  
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.  
Connect the Power Supply Plug (Fig. 1 F) to an electri-  
cal outlet; in the case of a direct line connection, turn  
on the circuit breaker.  
1
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 (AAA/R03/LR03 × 2)  
Press and slide the battery compartment lid on the re-  
1
verse side to open it.  
Do not attempt to recharge dry batteries.  
Slide in the direction of the arrow while pressing the  
mark.  
Never mix new and used batteries, or  
batteries of different types.  
Batteries should last about one year  
under normal use. If the Remote Con-  
trol Units operating range becomes ap-  
preciably reduced, replace the batteries  
and press the RESET button with the tip  
of a ballpoint pen or other small object.  
Insert batteries.  
Be sure to align the battery polarities (  
2
3
) correctly.  
Close the battery compartment lid.  
Set the Current time  
Press the CLOCK ADJUST button (Fig. 6 X).  
1
2
Use the tip of a ball-point pen or other small object to press the button.  
Use the TIMER SET (  
/
) buttons (Fig. 6 V) to ad-  
just 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 (Fig. 6 X) 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. 3 4) to operate  
correctly.  
Operating Range: About 23 ft.  
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  
3
To remove the Remote  
Control Unit (when use at  
hand).  
Unit.  
En-4  
 
OPERATION  
To Select Mode Operation  
Press the START/STOP button (Fig.6 N).  
1
2
The indoor units OPERATION Indicator Lamp (red) (Fig. 3 5) will light.  
The air conditioner will start operating.  
Press the MASTER CONTROL button (Fig.6 L) to se-  
lect the desired mode.  
Each time the button is pressed, the mode will change in the following  
order.  
s
s
s
AUTO  
COOL  
DRY  
t
t
HEAT  
FAN  
About three seconds later, the entire display will reappear.  
Example: When set to COOL.  
To Set the Thermostat  
Press the SET TEMP. button (Fig. 6 R).  
button: Press to raise the thermostat setting.  
button: Press to lower the thermostat setting.  
Thermostat setting range:  
AUTO .................................. 64 °F to 88 °F  
Heating ............................... 60 °F to 88 °F  
Cooling/Dry ........................ 64 °F 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 Units 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 80 °F.  
To Set the Fan Speed  
Press the FAN CONTROL button (Fig. 6 M).  
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:  
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.  
Example: When set to AUTO.  
The fan will operate at a very low setting during Monitor operation  
and at the start of the Heating mode.  
SUPER QUIET Operation  
SUPER QUIET operation begins. The indoor units airflow will be reduced for qui-  
eter operation.  
SUPER QUIET operation cannot be used during Dry mode. (The same is true  
when dry mode is selected during AUTO mode operation.)  
During Super Quiet operation, Heating and Cooling performance will be reduced  
somewhat. If the room does not warm up/ cool down when using SUPER QUIET  
Operation, please adjust the air conditioners Fan Speed.  
En-5  
 
To Stop Operation  
Press the START/STOP button (Fig.6 N).  
The OPERATION Indicator Lamp (red) (Fig. 3 5) will go out.  
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 or dry operation  
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 set-  
ting.)  
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 begin 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) (Fig. 3 5)will flash, and the heat operation will be inter-  
rupted.  
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. 6 N).  
1
The OPERATION Indicator Lamp (red) (Fig. 3 5) will light.  
(If the unit is already in operation, please proceed to step 2.)  
Press the AIR CLEAN button (Fig. 6 O).  
2
The AIR CLEAN Indicator Lamp (green) (Fig. 3 7) will light up.  
Air conditioning and Air Cleaning will function simultaneously.  
If you wish to stop Air Clean  
Press the AIR CLEAN button (Fig. 6 O) once again.  
The AIR CLEAN Indicator Lamp (green) (Fig. 3 7) will go out.  
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 (red) (Fig. 3 5) will go out.  
The next time the START / STOP button (Fig. 6 N) 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 13, 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 5.) The  
plasma filter unit operates most effectively at the highest fan speed.  
The AIR CLEAN Indicator Lamp (green) will flash to inform you that the periodic  
cleaning of the plasma filter unit is required. (Refer to page 13, 14.)  
En-7  
 
TIMER OPERATION  
Before using the timer function, be sure that the Remote Control Unit is set to the correct current time (P. 4).  
To Use the ON timer or OFF timer  
To Cancel the Timer  
Press the START/STOP button (Fig. 6 N)  
(if the unit is already operating, proceed to step 2).  
The indoor units OPERATION Indicator Lamp (red) (Fig. 3 ) will light.  
1
Use theTIMER MODE button to select  
“CANCEL”.  
The air conditioner will return to normal  
operation.  
5
To Change the Timer Settings  
Press the TIMER MODE button (Fig. 6 U) to select the  
OFF timer or ON timer operation.  
Each time the button is pressed the timer function changes in the follow-  
ing order:  
2
Perform steps 2 and 3.  
To Stop Air Conditioner Operation  
while the Timer is Operating  
Press the START/STOP button.  
s
s
s
ON  
CANCEL  
OFF  
To Change Operating Conditions  
t
PROGRAM(OFF ON, OFF ON)  
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 greenTIMER Indicator Lamp (Fig. 3 6) will light.  
Use the TIMER SET buttons (Fig. 6 V) 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  
Press the START/STOP button (Fig. 6 N).  
(if the unit is already operating, proceed to step 2).  
The indoor units OPERATION Indicator Lamp (red) (Fig. 3 5) will light.  
To Cancel the Timer  
1
Use the TIMER MODE button to select  
“CANCEL.”  
The air conditioner will return to normal  
operation.  
Set the desired times for OFF timer and ON timer.  
To Change the Timer Settings  
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 ONTimer or OFFTimer” to se-  
lect the timer setting you wish to change.  
mode and times.  
About three seconds later, the entire display will reappear.  
The indoor unitsTIMER 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. 6 U) to select the  
To Stop Air Conditioner Operation  
while the Timer is Operating  
3
PROGRAM timer operation (OFF  
will display).  
ON or OFF  
ON  
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 reap-  
pears, then press the appropriate buttons to  
change the operating condition desired.  
The program timer will begin operation. (If the ON timer has been se-  
lected 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 operate is stopped.  
To Use the SLEEP Timer  
To Cancel the Timer:  
While the air conditioner is operating or stopped, press the  
SLEEP button (Fig. 6 S).  
The indoor units OPERATION Indicator Lamp (red) (Fig. 3 5) lights and theTIMER  
Use the TIMER MODE button to select  
“CANCEL”.  
The air conditioner will return to normal  
operation.  
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. 6 S) once again and set the time  
using the TIMER SET(  
/
) buttons (Fig. 6 V).  
Set the time while the Timer Mode 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 warming or cooling during sleep, the SLEEP timer function automatically modifies the thermostat setting  
in accordance with the set 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 ther-  
mostat 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 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.  
SLEEP timer setting  
SLEEP timer setting  
2 °F  
4 °F  
6 °F  
8 °F  
Set time  
30  
minutes  
1 hour  
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 Units 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.  
R
Vertical Air Direction Adjustment  
DANGER!  
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 Q).  
Each time the button is pressed, the air direction range will change as follows:  
1 2 3 4 5 6 7  
Always use the Remote Control Units  
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  
:
During Cooling/Dry modes  
4,5,6,7: During Heating mode  
1,2,3,4,5,6,7: During Fan mode  
The Remote Control Units display does  
not change.  
During use of the Cooling and Dry  
modes, do not set the Air Flow Direc-  
tion Louvers in the Heating range (4-  
7) for long periods of time, since wa-  
ter vapor may condense near the out-  
let louvers and drops of water may drip  
from the air conditioner. During the  
Cooling and Dry modes, if the Air Flow  
Direction Louvers are left in the heat-  
ing range for more than 30 minutes,  
they will automatically return to posi-  
tion 3.  
Use the air direction adjustments within the ranges shown above.  
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 mode  
: Downward flow 7  
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.  
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.  
Right-Left Adjustment  
R
DANGER!  
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.  
Move the Right-Left louvers to adjust air flow in the direction you prefer.  
knob  
knob(three places)  
En-10  
 
SWING OPERATION  
Begin air conditioner operation before performing this procedure.  
To select SWING Operation  
Press the SWING button (Fig. 6 T).  
The SWING Display (Fig. 7 b) 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 T) once again.  
The SWING Display (Fig. 7 b) will go out.  
Airflow direction will return to the setting before swing was begun.  
About Swing Operation  
During cooling/Dry mode : Swings between 1and 3.  
During heating mode  
: Swings between 3and 7.  
The SWING operation may stop temporarily when the air conditioners 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. 6 P) during operation or when  
it stops.  
The COIL DRY Indicator Lamp (orange) (Fig. 3 8) and the COIL DRY Display (Fig. 7  
c) will light. Then it will disappear after 30 minutes.  
To cancel COIL DRY Operation  
Press the START/STOP button (Fig. 6 N) during COIL DRY  
Operation.  
The COIL DRY Indicator Lamp (orange) (Fig. 3 8) and the COIL DRY Display (Fig. 7  
c) will go out . Then the operation stops.  
About COIL DRY Operation  
Press the COIL DRY button again during COIL DRY Operation, COIL DRY Opera-  
tion can be reset.  
The COIL DRY Operation cannot get rid of the existed mould or bacterium, and it  
has no sterilization effect either.  
MANUAL AUTO OPERATION  
Use the MANUAL AUTO operation in the event the Remote Control Unit is lost or otherwise unavailable.  
How To Use the Main Unit Controls  
When the air conditioner is operated  
with the controls on the Main Unit, it  
Press the MANUAL AUTO button (Fig. 2 2) on the main unit  
will operate under the same mode as  
the AUTO mode selected on the Re-  
mote Control Unit (see page 6).  
control panel.  
To stop operation, press the MANUAL AUTO button (Fig. 2 2) once again.  
The fan speed selected will beAUTO”  
and the thermostat setting will be  
standard.(76 °F)  
(Controls are located inside the Open Panel)  
En-11  
 
CLEANING AND CARE  
Before cleaning the air conditioner, be sure to turn it off and disconnect the Power Supply Cord.  
CAUTION!  
Be sure the Intake Grille (Fig. 4 9) is installed securely.  
When removing and replacing the air filters, be sure not to touch the heat exchanger, as per-  
sonal injury may result.  
Cleaning the Intake Grille  
1. Remove the Intake Grille.  
Cleaning the Air Filter  
1. Open the Intake Grille, and remove the air  
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.  
filter.  
Lift up the air filters handle, disconnect the two lower  
tabs, and pull out.  
2Pull past the intermediate catch and open the Intake  
Grille wide so that it become horizontal.  
Air filter handle  
Intake Grille  
2. Remove dust with a vacuum cleaner or by  
washing.  
Intake Grille  
After washing, allow to dry thoroughly in a shaded place.  
3. Replace the Air Filter and close the Intake  
Grille.  
Mounting  
shaft  
1Align the sides of the air filter with the panel, and push  
in fully, making sure the two lower tabs are returned  
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.  
2Close the Intake Grille.  
1Pull the knobs all the way.  
(For purposes of example, the illustration shows the unit  
without Intake Grille installed.)  
2Hold the grille horizontal and set the left and right  
mounting shafts into the bearings at the top of the  
panel.  
Dust can be cleaned from the air filter either with a vacuum  
cleaner, or by washing the filter in a solution of mild de-  
tergent and warm water. If you wash the filter, be sure to  
allow it to dry thoroughly in a shady place before rein-  
stalling.  
3Press the place where the arrow on the diagram indi-  
cates and close the Intake Grille.  
Mounting shaft  
Intake  
Grille  
Bearing  
Knob  
If dirt is allowed to accumulate on the air filter, air flow  
will be reduced, lowering operating efficiency and increas-  
ing noise.  
During periods of normal use, the Air Filters should be  
cleaned every two weeks.  
Intake Grille  
Mounting  
shaft  
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 104 °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.  
4. Wash with water and dry.  
1Soak the plasma filter unit in warm water (104 to  
113˚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.  
Please consult the instructions for cleaning the air  
filter on page 12.  
2. Remove the dust collection unit.  
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.  
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.)  
5Place the plasma filter unit in the shade and allow it  
to dry completely.  
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. Remove the air cleaning & deodorizing fil-  
ter from the cleaning unit.  
1Open the filter case at the rear of cleaning unit.  
Only use a mild synthetic laundry detergent (low  
alkalinity or isotope detergent).  
Never disassemble the plasma filter unit.  
Claw  
Claw  
Never soak the plasma filter unit in hot water.  
Filter case  
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.  
2Remove the air cleaning & deodorizing filter.  
Never use dryer or other device to blow hot air on  
the plasma filter unit. This will cause deformation  
or other damage.  
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.  
Air cleaning &  
deodorizing filter  
En-13  
 
Cleaning the dust collection unit  
5. Install the unit.  
6. 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.  
7. 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  
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.  
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!  
Be sure the Intake Grille (Fig. 4 9) is installed  
securely.  
Please ensure that the dust collection unit is  
completely dry before installing.  
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.  
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.  
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.  
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.  
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.  
Please place the air cleaning & deodorizing  
filter, with the black surface upward.  
Please consult step 3 of cleaning the air filter on  
page 12.  
3Close 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”  
“Click”  
Hook  
Hook  
When changing the filter, please make sure you purchase  
the correct model (UTRFA14).  
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  
company.  
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.  
3. Install the dust-collection unit.  
Please consult steps 5, 6 and 7 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  
See Page  
Problem  
NORMAL  
FUNCTION  
Doesn’t 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.  
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 occasional.  
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 Automatic  
Defrosting operation.  
17  
Airflow is weak or stops:  
When Heating operation is started, fan speed is temporarily very  
low, to allow internal parts to warm up.  
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.  
During Heating operation, the unit will temporarily stop opera-  
tion (between 7 and 15 minutes) as the Automatic Defrosting mode  
operates. DuringAutomatic Defrosting operation, the OPERATION  
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
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.  
5
During Heating operation, water may be produced from the out-  
door unit due to Automatic Defrosting operation.  
Water is produced from  
the outdoor unit:  
17  
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.  
The AIR CLEAN Indicator  
Lamp (green) will begin  
to slowly flash (as shown  
in the figure):  
13-14  
13-14  
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 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  
Is the Power Supply Plug disconnected its outlet?  
Has there been a power failure?  
Doesn’t operate at all:  
CHECK ONCE  
MORE  
Has a fuse blown out, or a circuit breaker been tripped?  
Is the timer operating?  
8 - 9  
Poor Cooling performance: Is the Air Filter dirty?  
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 Unit’s 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 OPERATION Indicator Lamp  
(Fig. 3 5) and the TIMER Indicator Lamp (Fig. 3 6) flashes, immediately stop operation, disconnect the Power Supply Plug  
(Fig. 1 F), 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  
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).  
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.  
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  
Temperature and Humidity Range  
Cooling Mode  
Dry Mode  
Heating Mode  
About 5 °F to 75 °F  
About 86 °F or less  
Outdoor temperature  
Indoor temperature  
About 14 °F to 115 °F  
About 64 °F to 90 °F  
About 14 °F to 115 °F  
About 64 °F to 90 °F  
If the air conditioner is used under higher temperature conditioner than those listed, the built-in protection circuit may  
operate to prevent internal circuit damage. Also, during Cooling and Dry modes, if the unit is used under conditions of  
lower temperature than those listed above, the heat-exchanger may freeze, leading to water leakage and other damage.  
Do not use this unit for any purposes other than the Cooling, Dehumidifying, and air-circulation of rooms in ordinary  
dwellings.  
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. (About 80% or more)  
Tips for saving energy  
When the outdoor temperature is low (about 50 °F or less), the unit will consume the power of 20~40W unless the power  
plug is disconnected from the outlet even if the air conditioner turns off.  
Remove the power plug to stop the power supply for energy saving when not using for a long time.  
En-18  
 

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