Fujitsu Inverter ASTA07JEC, Inverter ASTA09JEC, Inverter ASTA12JEC, Inverter AOTR07JEC, Inverter AOTR09JEC Operating Manual

CONTENTS

SAFETY PRECAUTIONS..................................... En-1

FEATURES AND FUNCTIONS............................ En-2

NAME OF PARTS ................................................ En-3

PREPARATION .................................................... En-5

OPERATION ........................................................ En-6

TIMER OPERATION ............................................ En-8

SLEEP TIMER OPERATION ................................. En-9

SAFETY PRECAUTIONS

DANGER!

● Do not attempt to install this air conditioner by yourself.

● This air conditioner contains no user-serviceable parts. Always consult authorized

service personnel for repairs.

● When moving, consult authorized service personnel for disconnection and installa­tion of the air conditioner.

● Do not become excessively chilled by staying for many hours in the direct cooling
airflow.

● Do not insert fingers or objects into the outlet port or intake grille.

● Do not start and stop air conditioner operation by disconnecting the power supply

cord and so on.

● Take care not to damage the power supply cord.

● In the event of a malfunction (burning smell, etc.), immediately stop operation, dis-

connect the power supply plug, and consult authorized service personnel.

● 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.

MANUAL AUTO OPERATION ............................ En-9

ADJUSTING THE DIRECTION OF

AIR CIRCULATION ............................................ En-10

SWING OPERATION......................................... En-10

CLEANING AND CARE ...................................... En-11

TROUBLESHOOTING ....................................... En-13

OPERATING TIPS .............................................. En-14

CAUTION!

● Provide occasional ventilation during use.

● Do not direct airflow at fireplaces or heating apparatus.

● Do not climb on, or place objects on, the air conditioner.

● Do not hang objects from the indoor unit.

● Do not set flower vases or water containers on top of air conditioners.

● Do not expose the air conditioner directly to water.

● Do not operate the air conditioner with wet hands.

● Do not pull power supply cord.

● Turn off power supply when not using the indoor unit for extended periods.

● Check the condition of the installation stand for damage.

● Do not place animals or plants in the direct path of the airflow.

● Do not drink the water drained from the air conditioner.

● Do not use in applications involving the storage of foods, plants or animals, precision

equipment, or art works.

● Connection valves become hot during Heating; handle with care.

● Do not apply any heavy pressure to radiator fins.

● Operate only with air filters installed.

● Do not block or cover the intake grille and outlet port.

● Ensure that any electronic equipment is at least one meter away from either the in-

door or outdoor units.

● Avoid installing the air conditioner near a fireplace or other heating apparatus.

● When installing the indoor and outdoor unit, take precautions to prevent access to

infants.

● Do not use inflammable gases near the air conditioner.

En-1

FEATURES AND FUNCTIONS

INVERTER

At the start of operation, a large power is used to bring the
room quickly to the desired temperature. Afterward, the air
conditioner automatically switches to a low power setting
for economic and comfortable operation.

AUTO CHANGEOVER

The operation mode (cooling, dry) is switched automatically
to maintain the set temperature, and the temperature is kept
constant at all times.

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.

SLEEP TIMER

When the SLEEP button is pressed during Heating mode,
the indoor unit’s 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 indoor unit au­tomatically turns off.

WIRELESS REMOTE CONTROL UNIT

The Wireless Remote Control Unit allows convenient con­trol of indoor unit operation.

SWING OPERATION

The Air Flow Direction Louvers swings automatically up and
down so that the air speeds to every nook and corner of
your room.

REMOVABLE INTAKE GRILLE

The indoor unit’s Intake Grille can be removed for easy clean­ing and maintenance.

MILDEW-RESISTANT FILTER

The AIR FILTER has been treated to resist mildew growth,
thus allowing cleaner use and easier care.

SUPER QUIET OPERATION

When the FAN CONTROL button is used to select QUIET,
the indoor unit begins super-quiet operation; the indoor
unit’s airflow is reduced to produce quieter operation.

POLYPHENOL CATECHIN AIR CLEANING FILTER

The polyphenol catechin air cleaning filter uses static elec­tricity to clean fine particles and dust in the air such as to­bacco smoke and plant pollen that are too small to see.
The filter contains catechin, which is highly effective against
various bacteria by suppressing the growth of the bacteria
adsorbed to the filter.
Note that when the air cleaning filter is installed, the amount
of air produced decreases, causing a slight decrease in the
indoor unit’s performance.

NEGATIVE AIR IONS DEODORIZING FILTER

It comprises pottery super micro particles which can pro­duce negative air ions having the effect of deodorizing and
can absorb and remit the peculiar smell at home.

En-2

NAME OF PARTS

Fig. 1

Fig. 5

0

G

H

J

F

A

B

C

1

1

2

8

9

Fig. 2

1

3

3

OPERATION

TIMER

SUPER QUIET

5
6

7

DE

Fig. 3

4

8

I

Fig. 4

Fig. 6

C

C

Fig. 7

To facilitate explanation, the accompanying illustra­tion has been drawn to show all possible indicators;
in actral operation, however, the display will only
show those indicators appropriate to the current op­eration.

En-3

Fig. 1 Indoor Unit

1 Operating Control Panel (Fig. 2)
2 MANUAL AUTO 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 personnel's
use.

● When the forced cooling operation starts

by any chance, press the START/STOP but­ton to stop the operation.

3 Indicator (Fig. 3)
4 Remote Control Signal Receiver
5 OPERATION Indicator Lamp (green)
6 TIMER Indicator Lamp (orange)

If the TIMER indicator lamp flashes when

●

the timer is operating, it indicates that a
fault has occurred with the timer setting

(See Page 14 Auto Restart).

7 SUPER QUIET Indicator Lamp (yellow)

8 Intake Grille (Fig. 4)
9 Front Panel
0 Air Filter
A Air Flow Direction Louver
B Right-Left Louver

(behind Air Flow Direction Louver)

C Drain Hose
D Power Supply Plug
E Power Supply Cord
F Air Cleaning Filter

Fig. 5 Outdoor Unit

Fig. 6 Remote Control Unit

K Signal Transmitter
L MASTER CONTROL button
M SLEEP button
N TIMER MODE button
O FAN CONTROL button
P START/STOP button
Q SET TEMP. button (

/ )

R SET button
S SWING button
T TIMER SET (

/ ) button

U CLOCK ADJUST button
V TEST RUN button

● This button is used when installing the
conditioner, and should not be used un­der normal conditions, as it will cause the
air conditioner’s thermostat function to op­erate incorrectly.

● If this button is pressed during normal op­eration, the unit will switch to test opera­tion mode, and the Indoor Unit’s OPERA­TION 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.

W RESET button
X Remote Control Unit Display (Fig. 7)
Y Transmit Indicator
Z Temperature SET Display
[ Fan Speed Display
\ Operating Mode Display
] SWING Display
` SLEEP Display
a Timer Mode Display
b Clock Display

G Intake Port
H Outlet Port
I Pipe Unit
J Drain port (bottom)

En-4

PREPARATION

Turn on the Power

Connect the Power Supply Plug (Fig. 1 D) to an electri-

1

cal outlet; in the case of a direct line connection, turn
on the circuit breaker.

Load Batteries (AAA / 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.

Insert batteries.

2

Be sure to align the battery polarities ( ) correctly.

Close the battery compartment lid.

3

Set the Current time

Press the CLOCK ADJUST button (Fig. 6 U).

1

Use the tip of a ball-point pen or other small object to press the button.

CAUTION!

● 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.

● If leaking battery fluid comes in contact
with your skin, eyes, or mouth, immedi­ately wash with copious amounts of
water, and consult your physician.

● Dead batteries should be removed
immediately and disposed of properly,
either in a battery collection receptacle
or to the appropriate authority.

● Do not attempt to recharge dry batteries.

Never mix new and used batteries, or
batteries of different types.
Batteries should last about one year
under normal use. If the Remote Con­trol Unit’s operating range becomes ap­preciably reduced, replace the batteries
and press the RESET button with the tip
of a ballpoint pen or other small object.

Use the TIMER SET ( / ) buttons (Fig. 6 T) to

2

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 (Fig. 6 U) again.

3

This completes the time setting and starts the clock.

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 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

Press in

Screws

Slide up

Pull out

1 Mount the Holder. 2 Set the Remote Control

Unit.

En-5

3 To remove the Remote

Control Unit (when use at
hand).

OPERATION

To Select Mode Operation

Press the START/STOP button (Fig.6 P).

1

The indoor unit’s OPERATION Indicator Lamp (green) (Fig. 3 5) will light.
The air conditioner will start operating.

Press the MASTER CONTROL button (Fig.6 L) to se-

2

lect the desired mode.

Each time the button is pressed, the mode will change in the following
order.

sss

AUTO COOL DRY FAN

About three seconds later, the entire display will reappear.

s

To Set the Thermostat

Press the SET TEMP. button (Fig. 6 Q).

button: Press to raise the thermostat setting.
button: Press to lower the thermostat setting.

●Thermostat setting range:

AUTO .................................. 18-30 °C

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.

Cooling/Dry ........................ 18-30 °C

To Set the Fan Speed

Press the FAN CONTROL button (Fig. 6 O).

Each time the button is pressed, the fan speed changes in the following order:

AUTO HIGH MED LOW QUIET

About three seconds later, the entire display will reappear.

When set to AUTO:

Cooling : As the room temperature approaches that of the thermostat setting,

the fan speed becomes slower.

Fan : The fan runs at the low fan speed.

ssss

s

Example: When set to COOL.

Example: When set to 26 °C.

The fan will operate at a very low setting during Monitor operation.

SUPER QUIET Operation

When set to Quiet:

SUPER QUIET Indicatior Lamp (yellow) (Fig. 3 7) will right.
SUPER QUIET operation begins. The indoor unit’s airflow will be reduced for qui­eter operation.

● SUPER QUIET operation cannot be used during Dry mode. (The same is true
when dry mode is selected during AUTO mode operation.)

● During Super Quiet operation, Cooling performance will be reduced somewhat.
If the room does not cool down when using SUPER QUIET Operation, please
adjust the air conditioner’s Fan Speed.

Example: When set to AUTO.

En-6

OPERATION

To Stop Operation

Press the START/STOP button (Fig. 6 P).

The OPERATION Indicator Lamp (green) (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 tempera­ture is more than +2 °C → Cooling or dry operation

If the difference between thermostat setting and actual room tempera­ture is within ±2 °C → Monitor operation

● When the air conditioner has adjusted your room’s temperature to near
the thermostat setting, it will begin monitor operation. In the monitor
operation mode, the fan will operate at low speed. If the room tem­perature subsequently changes, the air conditioner will once again
select the appropriate operation (Cooling) to adjust the temperature to
the value set in the thermostat.

(The monitor operation range is ±2 °C relative to the thermostat set­ting.)

● If the mode automatically selected by the unit is not what you wish,
select one of the mode operation (COOL, DRY, FAN).

About Mode Operation

Cooling: ● Use to cool your room.

Dry: ● Use for gently cooling while dehumidifying your room.

● You cannot heat the room during Dry mode.

● During Dry mode, the unit will operate at low speed; in order to adjust

room humidity, the indoor unit’s fan may stop from time to time. Also,
the fan may operate at very low speed when adjusting room humidity.

● The fan speed cannot be changed manually when Dry mode has been
selected.

Fan: ● Use to circulate the air throughout your room.

During Cooling/Dry mode:

Set the thermostat to a temperature set­ting 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 oper­ate).

During Fan mode:

You can not use the unit to heat and cool
your room.

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

Press the START/STOP button (Fig. 6 P)

1

(if the unit is already operating, proceed to step 2).

The indoor unit’s OPERATION Indicator Lamp (green) (Fig. 3 5) will light.

Press the TIMER MODE button (Fig. 6 N) to select the

2

OFF timer or ON timer operation.

Each time the button is pressed the timer function changes in the follow­ing order:

ss

CANCEL OFF ON

PROGRAM(OFF → ON, OFF ← ON)

The indoor unit’s TIMER Indicator Lamp (orange) (Fig. 3 6) will light.

s

t

Use the TIMER SET buttons (Fig. 6 T) to adjust the

3

desired OFF time or ON time.

Set the time while the time display is flashing (the flashing will continue
for about five seconds).

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

Use the TIMER button to select “CANCEL”.
The air conditioner will return to normal
operation.

To Change the Timer Settings

Perform steps 2 and 3.

To Stop Air Conditioner Operation
while the Timer is Operating

Press the START/STOP button.

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.

Press the START/STOP button (Fig. 6 P).

1

(if the unit is already operating, proceed to step 2).

The indoor unit’s OPERATION Indicator Lamp (green) (Fig. 3 5) will light.

Set the desired times for OFF timer and ON timer.

2

See the section “To Use the ON timer or OFF timer” to set the desired
mode and times.
About three seconds later, the entire display will reappear.
The indoor unit’s TIMER Indicator Lamp (orange) (Fig. 3 6) will light.

Press the TIMER MODE button (Fig. 6 N) to select the

3

PROGRAM timer operation (OFF

ON or OFF ON

will display).

The display will alternately show “OFF timer” and “ON timer”, then change
to show the time setting for the operation to occur first.

● 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 Unit’s
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) automati­cally in the morning before you arise.

To Cancel the Timer

Use the TIMER MODE button to select
“CANCEL”.
The air conditioner will return to normal
operation.

To Change the Timer Settings

Follow the instructions given in the section

1.
“To Use the ON Timer or OFF Timer” to se­lect the timer setting you wish to change.

2. Press the TIMER MODE button to select
either OFF

To Stop Air Conditioner Operation
while the Timer is Operating

Press the START/STOP button.

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.

ON or OFF ON.

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

While the air conditioner is operating or stopped, press the
SLEEP button (Fig. 6 M).

The indoor unit’s OPERATION Indicator Lamp (green) (Fig. 3 5) lights and the TIMER
Indicator Lamp (orange) (Fig. 3 6) light.

To Change the Timer Settings

Press the SLEEP button (Fig. 6 M) once again and set the time
using the TIMER SET (

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 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.

/ ) buttons (Fig. 6 T).

To Cancel the Timer:

Use the TIMER MODE button to select
“CANCEL”.
The air conditioner will return to normal
operation.

To Stop the Air Conditioner During
Timer Operation:

Press the START/STOP button.

During Cooling/Dry operation:

When the SLEEP timer is set, the thermostat setting is automatically raised 1 °C every sixty minutes. When the thermostat has
been raised a total of 2 °C, the thermostat setting at that time is maintained until the set time has elapsed, at which time the air
conditioner automatically turns off.

SLEEP timer setting

Set time

1 hour

1 °C

2 °C

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

Press the MANUAL AUTO button (Fig. 2 2) for three seconds
on the main unit control panel.

To stop operation, press the MANUAL AUTO button (Fig. 2 2) for three seconds.

● When the air conditioner is operated
by the controls on the Main Unit, it will
operate under the same mode as the
AUTO mode selected on the Remote
Control Unit (see page 6).

● The fan speed selected will be “AUTO”
and the thermostat setting will be
standard (24

°C).

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

Press the SET button (Fig. 6 R).

Each time the button is pressed, the air direction range will change as follows:

2 3 4 5 6

1

Types of Air flow Direction Setting:

1,2,3 : During Cooling/Dry modes
1,2,3,4,5,6 :During Fan mode

The Remote Control Unit’s display does
not change.

1

2

3

4
5

6

● 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/Fan mode

: Horizontal flow 1

● During AUTO mode operation, for the first one minute after beginning operation,
airflow will be horizontal 1; the air direction cannot be adjusted during this pe­riod.

Right-Left Adjustment

Adjust the Right-Left louvers.

● Move the Right-Left louvers to adjust air flow in the direction you prefer.

Right-Left Louvers

knob

knob(two places)

R

DANGER!

● Never place fingers or foreign objects in­side the outlet ports, since the internal fan
operates at high speed, and personal in­jury could be caused.

● Always use the Remote Control Unit’s
SET button to adjust the vertical airflow
louvers. Attempting to move them
manually could result in improper op­eration; in this case, stop operation and
restart. The louvers should begin to
operate properly again.

● During use of the Cooling and Dry
modes, do not set the Airflow Direc­tion Louvers in the range (4 - 6) for
many hours, since water vapor may
condense near the outlet louvers and
drops of water may drip from the in­door unit. During the Cooling and Dry
modes, if the Airflow Direction Louvers
are left in the range (4 - 6) for more
than 30 minutes, they will automati­cally return to position 3.

● When used in a room with infants, chil­dren, elderly or sick persons, the airflow
direction and room temperature should
be considered carefully when making
settings.

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.

SWING OPERATION

Begin air conditioner operation before performing this procedure.

To select SWING Operation

Press the SWING button (Fig. 6 S).

The SWING Display (Fig. 7 ]) 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 S) once again.

The SWING Display (Fig. 7 ]) will go out.
Airflow direction will return to the setting before swing was begun.

About Swing Operation

● The SWING operation may stop temporarily when the air conditioner’s fan is not
operating, or when operating at very low speeds.

● The range of swing is relative to the currently set airflow direction.
During Cooling/Dry mode : Swings between 1 and 3.
During Fan mode : Swings between 1 and 3 or 3 and 6.

En-10

CLEANING AND CARE

CAUTION!

● Before cleaning the indoor unit, be sure to turn it off and disconnect the Power Supply Cord.

● Be sure the Intake Grille (Fig. 1 8) is installed securely.

● When removing or replacing the air filters, be sure not to touch the heat exchanger, as personal

injury may result.

Cleaning the Intake Grille

1. Remove the Intake Grille.

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 up­ward to remove.

2 Pull past the intermediate catch and open the Intake

Grille wide so that it become horizontal.

Intake Grille

Mounting

shaft

Knob

Cleaning the Air Filter

1. Open the Intake Grille, and remove the air
filter.

Lift up the air filter’s handle, disconnect the two lower
tabs, and pull out.

Air filter handle

Air filter (Right & Left)

Hooks(two places)

2. Remove dust with a vacuum cleaner or by
washing.

After washing, allow to dry thoroughly in a shaded place.

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 returned
properly to their holes in the panel.

2. Clean with water.

Remove dust with a vacuum cleaner; wipe the indoor
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
panel.

3 Press the place where the arrow on the diagram indi-

cates and close the Intake Grille.

2

Mounting

1

3

● When used for extended periods, the indoor unit may accumulate dust inside, reducing its performance. We recommend
that the indoor unit be inspected regularly, in addition to your own cleaning and care. For more information, consult
authorized service personnel.

● When cleaning the indoor unit’s body, do not use water hotter than 40 °C, harsh abrasive cleansers, or volatile agents like
benzene or thinner.

● Do not expose the indoor unit’s body to liquid insecticides or hairsprays.

● When shutting down the indoor 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.

shaft

Bearing

Knob

2

1

3

2 Close the Intake Grille.

(For purposes of example, the illustration shows the indoor
unit without Intake Grille installed.)

● Dust can be cleaned from the air filter either with a vacuum
cleaner, or by washing the filter in a solution of neutral
detergent and warm water. If you wash the filter, be sure
to allow it to dry thoroughly in a shady place before rein­stalling.

● If dust is allowed to accumulate on the air filter, airflow
will be reduced, lowering operating efficiency and increas­ing noise.

● During periods of normal use, the Air Filters should be
cleaned every two weeks.

● Don't operate the air conditioner with being opened the
intake grille.

Hooks(two places)

En-11

Air Cleaning Filter Installation

1. Open the Intake Grille and remove the Air
filters.

2. Attach the air cleaning filter to the frame
of the front panel.

● Attach the filter on the inside of the tabs (6 places) so

as not to stick out.

2. Remove the air cleaning filters attached
to the frames of the front panel.

Air cleaning filter frame

Air cleaning filter frame

Tabs (6 places)

Air filter

(In the above figure, the intake grille is omitted for
the explanation)

Tabs

(6 places)

3. Install the two Air filters and close the
Intake Grille.

● Don't operate the air conditioner with being opened
the intake grille.

● When air cleaning filters are used, the effect will increased
by setting the fan speed to “High”.

Air filter

3. Replace them by two new Air cleaning
filters.

1 Remove the old air cleaning filters in reverse order of

their installation.

2 Install in the same way as for installation of the air

cleaning filter set.

4. Install the two Air filters and close the
Intake Grille.

● Don't operate the air conditioner with being opened
the intake grille.

About the Air Cleaning Filters

POLYPHENOL CATECHIN AIR CLEANING FILTER

● The Air Cleaning Filters are disposable filters. (They can
not be washed and reused.)

● For storage of the Air Cleaning Filters, use the filters as
soon as possible after opening the package.
(The air cleaning effect decreases when the filters are left
in the opened package)

● Generally, the filters should be exchanged about every
three months.

Please buy designed air cleaning filters (UTR-FA16) (Sold
separately) to exchange the used dirty air cleaning filter.

[Negative air ions deodorizing filter (one sheet) — light blue]

● The filter should be exchanged about every three years
so as to maintain the deodorizing effect.

(one sheet)

Replacing dirty Air cleaning filters

Replace filters with the following components (purchased sepa­rately).

POLYPHENOL CATECHIN AIR CLEANING FILTER

●

● Negative air ions deodorizing filter: UTR-FA16-2

: UTR-FA16

1. Open the Intake Grille and remove the Air fil­ters.

Please buy designed deodorizing filter (UTR-FA16-2) (Sold
separately) when exchanging the filter.

Maintenance of Deodorizing Filters

In order to maintain the deodorizing effect, please clean the
filter in the follow way once three months.

1 Remove the deodorizing filter.
2 Clean with water and dry in the air.

1) Flush the filter with high-pressure hot water until
the surface of the filter is covered with water. Please
flush with diluent neutral detergent.
Never wash by reaming or rubbing, otherwise it
will damage the deodorizing effect.

2) Rinse with water flow.

3) Dry in shade.

3 Reinstall the deodorizing filter.

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TROUBLESHOOTING

WARNING!

Before requesting service, perform the following checks:

NORMAL

FUNCTION

Doesn’t operate immedi­ately:

Noise is heard:

Smells:

Mist or steam are
emitted:

In the event of a malfunction (burning smell, etc.), immediately stop operation, turn off the elec­trical breaker or disconnect the power supply plug, and consult authorized service personnel.
Merely turning off the unit’s power switch will not completely disconnect the unit from the power
source. Always be sure to turn off the electrical breaker or disconnect the power supply plug to
ensure that power is completely off.

Symptom

● If the unit is stopped and then immediately started again, the com­pressor will not operate for about 3 minutes, in order to prevent
fuse blowouts.

●

Whenever the Power Supply Plug is disconnected and then re­connected to a power outlet, the protection circuit will operate for
about 3 minutes, preventing unit operation during that period.

● During operation and immediately after stopping the unit, the
sound of water flowing in the air conditioner’s piping may be
heard. Also, noise may be particularly noticeable for about 2 to 3
minutes after starting operation (sound of coolant flowing).

● 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.

● 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.

● 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.

Problem

See Page

—

—

—

—

CHECK ONCE

MORE

Airflow is weak or stops:

Doesn’t operate at all:

Poor Cooling performance:

The unit operates
differently from the Remote
Control Unit’s setting:

● The fan may operate at very low speed during Dry operation or
when the unit is monitoring the room’s temperature.

●

During SUPER QUIET operation, the fan will operate at very low speed.

●

In the monitor AUTO operation, the fan will operate at very low speed.

● Is the Power Supply Plug disconnected its outlet?

● Has there been a power failure?

● Has a fuse blown out, or a circuit breaker been tripped?

● Is the timer operating?

● Is the Air Filter dirty?

● Air the air conditioner’s intake grille or outlet port blocked?

●

Did you adjust the room temperature settings (thermostat) correctly?

● Is there a window or door open?

● In the case of Cooling operation, is a window allowing bright 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?

● Are the Remote Control Unit’s batteries dead?

● Are the Remote Control Unit’s batteries loaded properly?

6

6

6

—

8 - 9

—

6

5

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 D), and consult authorized service personnel.

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OPERATING TIPS

AUTO Restart

In Event of Power Interruption

● The power supply to the air conditioner is stopped by a
power interruption. The air conditioner will then restart
automatically in its previous mode when the power is
restored.

Temperature and Humidity Range

If a power interruption occurs during TIMER operation, the

●

timer will be reset and the indoor 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).

● 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.

Cooling Mode

Outdoor temperature

Indoor temperature

● If the air conditioner is used under higher temperature conditions than those listed, the built-in protection circuit may
operate to prevent internal circuit damage. Also, during Cooling and Dry modes, if the air conditioner 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 air conditioner for any purposes other than the Cooling, Dehumidifying, and air-circulation of rooms in
ordinary dwellings.

● If the air conditioner is used for many hours under high-humidity conditions about 80% or more, condensation may form on
the surface of the indoor unit, and drip onto the floor or other objects underneath.

About 18 to 46 °C

About 18 to 32 °C

Dry Mode

About 18 to 46 °C

About 18 to 32 °C

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