Fujitsu ASU9D User manual

OPERATING MANUAL
Fujrrsu
HEAT & COOL MODEL
(REVERSE CYCLE)
ROOM AIR CONDITIONER
MULTI SPLIT TYPE
(2 ROOMS)
Indoor Unit
ASU9D
ASU9RD
ASU12D1
Outdoor Unit
AOU18RD
AOU18D
AOU24D1
KEEP THIS OPERATION MANUAL
FOR FUTURE REFERENCE
FUJITSU GENERAL LIMITED
P/N9366614012

CONTENTS
PRECAUTIONS..
.En-1
-- "T
ADJUSTING THE DIRECTION OF 1
! I I
FEATURES AND FUNCTIONS.
.En-4
AIR CIRCULATION.L
NAME OF PARTS.
.En-5
SWING OPERATION.
.En-12
PREPARATION.
.En-6
MANUAL AUTO OPERATION.
. E n - 1 2
OPERATION .
.En-7
CLEANING AND CARE.
. E n - 1 3
TIMER OPERATION.
.En-9
TROUBLESHOOTING.
. E n - 1 6
SLEEP TIMER OPERATION.
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OPERATING TIPS.
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PRECAUTIONS
• Before using the appliance, read these "PRECAUTIONS" thoroughly and operate in the correct way. ^
• The instructions in this section all relate to safety; be sure to maintain save operating conditions. V Z'r
• "DANGER", "WARNING" and "CAUTION" have the following meanings in these instructions:
A DANGER!
This mark indicates procedures which, if improperly performed* ate most likely to
result in the death of or serious injury to the user or service personnel.
A WARNING!
This mark indicates procedures which, if improperly performed, might lead to the
death or serious injury of the user.
A CAUTION!
This mark Indicates procedures which, if improperly performed, might possibly result
in personal harm to the user, or damage to property.
Safety Symbols
A The triangular symbol indicates DANGER, WARNING and CAUTION items.
0 This symbol indicates prohibited operations. The prohibited action is indicated both within the symbol,
and in nearby explanations.
• This symbol indicates instructions regarding operations which are to be performed by the user.
/t\ DANGER!
Do not attempt to install this air conditioner by yourself. £
• Consult authorized service personnel for all installations.
>
Consult authorized service personnel for any repairs. -
• Do not attempt to remove parts, or service the unit yourself, since you may be I X# \
exposed to dangerous electrical shock. This appliance contains no user-service-
able parts.
When moving, consult authorized service personnel for discon-
nection and installation of the unit.
1
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PRECAUTIONS
/?\ WARNING!
Do not stay in direct cooling airflow for long periods.
• Excessive direct exposure to chilled air could be bad for your health. {
• Be especially careful when going to bed, and in rooms where infants, aged, or sick *
people are staying. j
_ \
u ^ 1
Do not insert fingers or objects into the outlet port or intake
grilles. ^
• A fan operates at high speed inside the unit, and personal injury could result.
% Be particularly careful regarding small children.
'r- - 1 — r~> — '
In the event of a malfunction (burning smell, etc.), immediately
stop operation, disconnect the power, and consult authorized
service personnel.
• Continuing to operate the unit under such conditions could lead to hazard of fire
or electrical shock.
CAUTION!
Be careful to provide adequate ventilation
particularly when using the unit in combi¬
nation with other heating apparatus.
• insufficient ventilation could lead to oxygen starvation.
Do not place animals or plants in the direct
path of the air flow.
Do not climb on, or place objects on, the
air conditioner.
• Personal injury could result from a falling object, or if
the unit tips over.
Do not direct air flow at fireplaces or heat¬
ing apparatuses.
• Direct air blowing on fires could result in improper com¬
bustion or fire.
Do not hang on or cover the air conditioner. Do not set flower vases or water contain¬
ers on top of air conditioners.
• Water leaking inside the unit could damage electrical
insulation, leading to danger of electrical shock.
Do not expose the air conditioner directly
to water.
• Electrical insulation could be damaged, resulting in elec¬
trical shock.
Do not operate the air conditioner with wet
hands.
• Electrical shock could result.
En-2

PRECAUTIONS
/4\ CAUTION!
Turn off power source when not using the
unit for extended periods.
Always turn off the electrical breaker when¬
ever cleaning the air conditioner or chang¬
ing the air filter.
• A fan operates at high speed inside the unit, and per¬
sonal injury could result.
Take precautions to prevent infants from
accidentally swallowing batteries.
Check the condition of the installation for
damage.
• After lengthy use, arrange for visit by authorized serv¬
ice personnel to check installation condition.
Do not drink the water drained from the air
conditioner.
Do not use in applications involving the
storage of foods, plants or animals, preci¬
sion equipment, or art works.
• The quality of the stored items may deteriorate.
Take out the batteries from the remote con¬
trol unit when not using for a long time.
• Take out the batteries to prevent troubles caused by
battery liquid leakage.
• If leaking battery fluid comes in contact with your skin,
eyes, or mouth, immediately wash with copious
amounts of water, and consult your physician.
Do not touch the heat exchanger radiator
fins.
• Personal injury could result.
• Be particularly careful when cleaning.
• Bending or damage to the fins will affect the efficiency
of the unit.
Always operate with the air filter installed.
• Operating the unit without the air filter could cause ex¬
cessive dirt to collect on internal parts, leading to mal¬
function.
Do not block or cover the intake grille and
outlet port.
• Obstructing the ports will reduce operating efficiency,
leading to improper operation and possible damage.
Install the indoor unit and remote control
unit at least one meter from any television
sets or radio.
• Signal radiation could be induced into the system to
give erroneous operation.
Avoid installing the air conditioner near a
fireplace or other heating apparatus.
• Exposure to excessive heat could result in deformation
of the outer case.
When installing the indoor unit and outdoor
unit, take precautions to prevent access by
infants.
• Unexpected accidents could occur.
Be sure to attach the intake grille securely.
Do not use inflammable gases near the air
conditioner.
Connection valves become hot during Heat¬
ing; handle with care.
• Touching the connection valves could result in burns.
En-3

FEATURES AND FUNCTIONS
( AUTOMATIC OPERATION )
Merely press the START/STOP button, and the unit will be¬
gin automatic operation in either the Heating, Cooling, Dry
or Monitor modes as appropriate, in accordance with the
thermostat setting and the actual temperature of the room.
( SLEEP TIMER )
When the SLEEP timer button is pressed during Heating
mode, the air conditioner'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 unit
automatically turns off.
( WIRELESS REMOTE CONTROL UNIT )
The WIRELESS REMOTE CONTROL UNIT allows convenient
control of air conditioner 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 unit begins super-quiet operation; the indoor unit's air¬
flow is reduced for quieter operation.
POWER DIFFUSER
(for warm air to your feet) _^
When the Air Flow Direction Louvers are moved for down¬
ward blowing, the Power Diffuser opens in downward di¬
rection and generates a powerful air flow to warm your feet
quickly and efficiently.
En-4

NAME OF PARTS
— Fig. 1 Indoor Unit-
-© Operating Control Panel (Fig. 2)-
(D MANUAL AUTO button _
© Remote Control Signal Receiver
-® Indicator Lamps (Fig. 3)-
© OPERATION Indicator Lamp (red)
© TIMER Indicator Lamp (green)
• 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).
© SWING indicator Lamp (orange)
© intake Grille (Fig. 4)
® Air Filter
© Air Flow Direction Louver
© Right-Left Louvers
(behind Air Flow Direction Louver)
© Drain Hose
© Inter Unit-Line
© Air Cleaning Filter (optional)
Fig. 5 Outdoor Unit —
© Power Supply
© Intake Port
© Outlet Port
© Pipe Unit
® Drain port (bottom)
- Fig. 6 Remote Control Unit-—
© SLEEP button
© MASTER CONTROL button
@ SET TEMP./SET TIME button (©/©)
© Signal Transmitter
© TIMER button
© FAN CONTROL button
© START/STOP button
© AIR FLOW DIRECTION button
© SWING LOUVER button
-Rear side (Fig. 7)-
© TIME ADJUST button
© ACL button
(located inside battery compartment)
® TEST RUN button
• This button is used when installing the
unit, and should not be used under nor¬
mal conditions, as it will cause the air con¬
ditioner's thermostat function to operate
incorrectly.
• If this button is pressed during normal op¬
eration, the unit will switch to test opera¬
tion mode, and the Indoor Unit's 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.
-© Remote Control Unit Display (Fig. 8)
© Transmit Indicator
© Clock Display
© Operating Mode Display
® Timer Mode Display
© Fan Speed Display
© Temperature Set Display
© Timer Set Indicator
© Temperature Set Indicator_
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PREPARATION
Turn on the Power
In the case of a direct line connection, turn on the circuit
breaker.
J^fv
Load Batteries (AAA x 2)
1
2
3
Press and slide the battery compartment lid on the re¬
verse side to open it.
Slide in the direction of the arrow while pressing the 0 mark.
Insert batteries.
Be sure to align the battery polarities (©/©) correctly.
Close the battery compartment lid.
Set the Current time
1
2
Press the TIME ADJUST button (Fig. 7 <§)).
Use the tip of a bail-point pen or other small object to press the button.
Use the ©/© SET TEMP./SET TIME buttons (Fig. 6 ®)
to adjust the clock to the current time.
© button: Press to advance the time.
© button: Press to reverse the time.
A CAUTION! _
• Take care to prevent infants from acciden¬
tally swallowing batteries.
• When not using the remote control unit
for an extended period, remove the bat¬
teries to avoid possible leakage and dam¬
age to the unit.
• If leaking battery fluid comes in contact
with your skin, eyes, or mouth, immedi¬
ately wash with copious amounts of wa¬
ter, and consult your physician.
• Dead batteries should be removed quickly
and disposed of properly, either by plac¬
ing in a public battery collection recepta¬
cle, or by returning to appropriate author-
ity.
• 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 appre¬
ciably reduced, replace the batteries and
press the ACL button (Fig. 7 with
the tip of a ballpoint pen or other small
object.
(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 steps.)
3 Press the TIME ADJUST button again.
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. 1 ©) to operate
correctly.
• Operating range: About 7 meters.
• When a signal is properly received by the air conditioner, a beep be heard.
• If no beep is heard, press the remote control unit button again.
. ’ ■ ' .~ >
Remote Control Unit Holder
0 Mount the Holder. 0 Set the Remote Control
Unit.
( 3 ) To remove the Remote
Control Unit.
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OPERATION
To Select Mode Operation
1
2
Press the START/STOP button (Fig-6 <g».
The indoor unit's OPERATION indicator lamp (red) (Fig. 3 ©) will light.
The air conditioner will start operation.
Press the MASTER CONTROL button (Fig.6 ©) to se¬
lect the desired mode.
Each time the button is pressed, the mode will change in the following
order:
|— ► A U T O— ► C OOL- ► DRY-
L HEAT < -FAN ◄ -
About three seconds later, the entire display will reappear.
To Set the Thermostat
^ _ ___ -.-. . _ . '
Press the SET TEMP, buttons (Fig. 6 @).
© button: Press to raise the thermostat setting.
© button: Press to lower the thermostat setting.
• Thermostat setting range:
Heating.60 to 88 °F
Cooling/Drying.64 to 88 °F
AUTO.64 to 88 °F
About three seconds later, the entire display will reappear.
NOTE:
• The thermostat setting should be considered a standard value, and may dif¬
fer somewhat from the actual room temperature.
Example: When set to COOL
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 @).
Each time the button is pressed, the fan speed changes in the following order:
|— ► A U TO- ► HIGH- ► MED- ► L OW- ► 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 tempera¬
ture 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 alternately turns on and off; when on, the fan runs at the low
fan speed.
Example: When set to AUTO
The fan will operate at very low setting during Monitor operation
and at the start of the Heating mode. _
In order to increase the drying effect
When set to QUIET: during quiet cooling operation, the fan of
SUPER QUIET operation begins. The indoor unit's airflow will be reduced for the indoor unit may stop,
quieter operation. '
• SUPER QUIET operation cannot be used during Dry mode. (The same is true
when dry mode is selected during AUTO mode operation.)
• During SUPER QUIET operation. Heating and Cooling performance will be
reduced somewhat.
En-7

To Select Automatic Operation
Press the MASTER CONTROL button to select AUTO.
The operating mode "AUTO" will appear alone in the display. The transmit indi¬
cator will flash to indicate the command has been sent, and about three sec¬
onds later the entire display panel will reappear.
To Set the Thermostat
Press the TEMPERATURE set button.
LOW HIGH LOW HIGH LOW HIGH LOW HIGH
LOW HIGH
■ M Hpfl . ffW
When set to When set to When set to When set to
4 °F lower 2 °F lower "normal" 2 °F higher
When set to
4°F higher
About three seconds later, the entire display will reappear.
NOTE: The thermostat setting should be considered a standard
differ somewhat from the actual room temperature.
value, and may
To Stop Operation
■ j
Press the START/STOP button.
The OPERATION indicator lamp (red) (Fig. 3 ©) will go out.
About Mode Operation
AUTO:
• Depending on the room temperature at the time operation begins, the operating
mode will be switched automatically as shown in the accompanying table.
Also, depending on the operating mode, the room temperature setting will cause
the "standard" temperature to be set as shown.
Example: When set to "normal"
Actual Room
Temperature
Operating Mode
Thermostat Setting
(standard setting)
88 °F or above
->
Cooling
82 °F
82 to 88 °F ->
Cooling
—>
80 °F
78 to 82 6 F
->
Dry
—>
76 °F
74 to 78 # F
Dry
72 6 F
Below 74 °F
Dry ->
68 °F
The operating mode and standard thermostat settings are selected automatically
when operation begins.
• When automatic operation is initiated, the fan will run at very low speed for about
one minute while the unit detects and selects the proper operating mode.
• Once the operating mode has been set, the mode will not change even if the
room temperature changes.
• If the START/STOP button is pressed to recommence operation within two hours
after stopping automatic operation, the unit will begin operating from the same
mode as before.
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 detecting room humidity.
• The fan speed cannot be changed manually when Dry mode has been selected.
During Cooling/Dry mode:
Set the thermostat to a temperature setting
that is lower than the current room tempera¬
ture. 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:
• Fan operation begins when room tem¬
perature in the vicinity of the air condi¬
tioner rises above the set thermostat
temperature; when the temperature
drops, fan operation stops.
• If the air emitted feels too cool, raise
the thermostat setting.
Fan:
• Use to circulate warm air from ceiling area throughout room when using space
heaters.
En-8

TIMER OPERATION
Before using the timer function, be sure that the Remote Control Unit is set to the correct current time (see page 6).
To Use the ON timer or OFF timer
*| Press the START/STOP button (Fig. 6 ®)
* (if the unit is already operating, proceed to step 2).
The indoor unit's OPERATION Indicator Lamp (red) (Fig. 3 ©) will light.
| To Cancel the Timer |
Use the TIMER button to select "TIMER RE¬
SET."
The air conditioner will return to normal op¬
eration.
2
3
Press the TIMER button (Fig. 6 to select the OFF
timer or ON timer operation.
Each time the button is pressed the timer function changes in the follow¬
ing order:
I- ► R E S E T- ► O F F - ► O N - 1
'— PROGRAMfOFF— ► ON, OFF «*- ONH- 1
The indoor unit's TIMER Indicator Lamp (green) (Fig. 3 ©) will light.
Use the SET TEMP./SET TIME button (Fig. 6 <g» to ad¬
just the 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 Change the Timer Setting 1
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) af¬
ter making the timer setting wait until the
entire display reappears, then press the ap¬
propriate buttons to change the operating
condition desired.
To Use the Program timer
_______
4 Press the START/STOP button (Fig. 6 ®)
■ (if the unit is already operating, proceed to step 2).
The indoor unit's OPERATION Indicator Lamp (red) (Fig. 3 ©) will light.
2 Set the desired times for OFF timer and ON timer.
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 (green) (Fig. 3 ©) will light.
3 Press the TIMER button (Fig. 6 ©) to select the PRO¬
GRAM timer operation (either OFF - ► O N 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
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 _j
• 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- ► O N , orOFF^-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.
| To Cancel the Timer I
Use the TIMER button to select "TIMER
RESET."
The air conditioner will return to normal
operation.
| To Change the Timer Setting |
1. Follow the instructions given in the sec¬
tion "To Use the ON Timer or OFF Timer"
to select the timer setting you wish to
change.
2. Press the TIMER button to select either
OFF - ► O N or OFF^-ON.
To Stop Air Conditioner Operation while
the Timer is Operating _
Press the START/STOP button.
1 To Change Operating Conditions |
If you wish to change operating conditions
(Mode, Fan Speed, Thermostat Setting), af¬
ter making the timer setting wait until the
entire display reappears, then press the ap¬
propriate buttons to change the operating
condition desired.
En-9

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
s_—--/
While the air conditioner is operating or stopped, press the
SLEEP button {Fig. 6 ®).
The indoor unit's OPERATION Indicator Lamp (red) (Fig. 3 ©) and the TIMER
Indicator Lamp (green) (Fig. 3 ©) will light
Press the SLEEP button (Fig. 6 <g>) once again and set the
time using the SET TIME buttons (Fig. 6 ©).
Set the time while the Timer Mode 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 Change the Timer Setting
v_—--/
| To Cancel the Timer: 1
Use the TIMER button to select "TIMER RE¬
SET".
The air conditioner will return to normal op¬
eration.
To Stop the Air Conditioner During Tinner
Operation: _
Press the START/STOP button.
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 time setting. When the set time has elapsed, the air conditioner completely stops.
During Heating 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.
SLEEP timer setting
During Cooling/Dry operation:
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
■ s
-— 1 hour — ►
ettime-
/\
V
\y 2 °f
4'F
En-10

ADJUSTING THE DIRECTION OF AIR CIRCULATION
Vertical (up-down) direction of airflow is adjusted by pressing the Remote Control Unit's AIR FLOW DIRECTION button. Hori¬
zontal (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 AIR FLOW DIRECTION button (Fig. 6 <g>).
Each time the button is pressed, the air direction range will change as follows:
Cooling/Dry
mode
©«=> ©<=h©) note
IB -I' iLT-vHH
Heating mode
© © <=± © <=? ®
: : ■ ' •'
1
Fan mode
®<=?®<Z?®^®£±©^©«=*®
1 i H: i;:,' r::
1- ' ■ r*.. si- »“
• 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 Cooiing/Dry modes : Horizontal flow ©
During Heating mode : Downward flow ©
• If you wish to select a different airflow direction, you may use the remote control
unit's AIR FLOW DIRECTION button to choose a different setting.
• When the temperature of the air being blown out is low at the start of heating
operation or during defrosting, the airflow direction temporarily becomes © to
prevent cold air being blown onto the body.
• When the AIR FLOW DIRECTION button of the remote control unit is pressed,
some time is required until the airflow direction louvers reach the desired posi¬
tion. During this time, adjustment of the airflow direction is not possible even
when the AIR FLOW DIRECTION button is pressed.
NOTE _
During the cooling mode operation, you can select the air direction ©, ©, ©, or
© (downward) by pressing the AIR FLOW DIRECTION button.
Use the air direction © when you want to cool yourself for a while after taking
a bath or shower, or after coming back home in summer months.
But, for prevention of condensation on the louver, the air direction © is auto¬
matically released after 30 minutes and turned to the air direction ®.
Right-Left Adjustment _ _
Adjust the Right-Left louvers.
• Move the Right-Left louvers to adjust air flow in the direction you prefer.
A CAUTtON! _
Never place fingers or foreign objects inside
the outlet ports, since the internal fan oper¬
ates at high speed and could cause personal
injury.
• Always use the remote control unit's
AIR FLOW DIRECTION button to adjust
the vertical airflow louvers. Attempt¬
ing to move them manually could re¬
sult in improper operation; in this case,
stop operation and restart. The louvers
should begin to operate properly
again.
• When used in a room with infants, chil¬
dren, elderly or sick persons, the air
direction and room temperature
should be considered carefully when
making settings.
• Always operate the Air Flow Direction
Louvers and the Power Diffuser with
the air flow direction buttons on the
remote control. Forcible movement by
hand can cause incorrect operation. In
such a case, stop the operation to let
the unit return to normal condition.
• Do not set the Air Flow Direction
Louvers and the power Diffuser for a
long time to the heating mode (®) dur¬
ing cooling or drying operation. This
can cause condensation at the dis¬
charge opening and dripping of water.
(When operation is continued for 30
minutes or more in the heating mode
© © ®, automatic return will be made
to the direction ©.)
En-11

SWING OPERATION
Begin air conditioner operation before performing this procedure.
To select SWING Operation___^
Press the SWING LOUVER button (Fig. 6 ®) m
The SWING indicator lamp (orange) (Fig. 3 ®) will light.
In this mode, the Air Flow Direction Louvers will swing automatically to direct
the airflow both up and down.
To Stop SWING Operation
V • .
Press the SWING LOUVER button (Fig. 6 @) once again.
The SWING indicator lamp (orange) (Fig. 3 ®) will go out.
Airflow direction will return to the setting before swing was begun.
About Swing Operation
• The SWING range is as follows:
• The SWING operation may stop temporarily when the air
conditioner's fan is not operating or when operating at
very low speeds.
• The airflow direction can not be adjusted during SWING
operation even when the AIR FLOW DIRECTION button is
pressed.
NOTE __
During the cooling mode operation, the air swings be¬
tween @ and ® by pressing the SWING LOUVER button
after selecting the air direction ® (downward) by press¬
ing the AIR FLOW DIRECTION button.
Use this operation when you want to cool yourself for a
while after taking a bath or shower, or after coming back
home in summer months.
But, for prevention of condensation on the louver, the
swing of the air direction @ ® is automatically released
after 30 minutes and turned to the swing of the air direc¬
tion ® <- ► ©._
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)) on the main
unit control panel.
To stop operation, press the MANUAL AUTO button once again.
(Controls are located inside the Intake Grille.)
• When the air conditioner is operated
with the controls on the Main unit, it
will operate under the same mode as
the AUTO mode selected on the Re¬
mote Control Unit (see page 8).
• The fan speed selected will be
"AUTO" and the thermostat setting
will be 76 °F.
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CLEANING AND CARE
A DANGER!
Before cleaning the unit, be sure to stop the unit and disconnect the power.
1. Disconnect the power. 2. Turn off the electrical breaker.
• A fan operates at high speed inside the unit, and personal injury could result.
When cleaning the air conditioner, turn off the electrical
breaker.
Never use water that is hotter than 100 °F. The body may
warp or change color.
f -:-_____-
Cleaning the Indoor Unit
Clean the indoor unit by wiping with a cloth dipped in cool
or warm water, then wipe with another soft, clean, dry cloth.
When Not Using the Unit for Extended
Periods (One Month or More)
\_I_._/
Operate the unit on fan mode for about one-half day on a
day with clear weather, to assure that the internal parts are
dry (see page 7).
The unit can be damaged by gasoline, benzine, thinners,
insecticides and other chemical agents.
Do not use inflammable sprays such as lacquer or hair spray
near the air conditioner.
A CAUTION!
When not using the unit for extended periods, dis¬
connect the power for safety.
Inspections and Repairs
Depending on the conditions of use, the internal parts of an air conditioner will become dirty after about two or three
seasons of use, and performance may be affected. For this reason, regular professional maintenance is recommended.
Consult authorized service personnel.
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Cleaning the Intake Grille.
k_—- J
1. O p e n the Intake Grille.
©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.
@ Pull past the intermediate catch and open the Intake
Grille wide so that it becomes horizontal.
4. S et the mounting shaft of the Intake Grille
into the bearings at the top of the panel.
© Pull the Knobs all the way.
© Hold the grille horizontal and set the left and right
mounting shafts into the bearings at the top of the
panel.
2. U n l o ck the Intake Grille.
Hold the Intake Grille with one hand and pull the Knobs
on the right and the left all the way to unlock the Intake
Grille.
Raise the horizontal Intake Grille to remove it.
3. C l e a n with water.
Remove dust with a vacuum cleaner; wipe the unit with
warm water, then dry with a clean, soft cloth.
5. L ock the Intake Grille.
Hold the Intake Grille with one hand and push the Knobs
on the right and the left all the way in to lock the Intake
Grille mounting shafts.
6. C lose the Intake Grille.
Push the lower edge of the Intake Grille at both ends and
at the center to close it.
Intake Grille
A caution i
Do not operate with open Intake Grille, as this can
cause accidents.

CLEANING AND CARE
Cleaning the Air Filter
1. O p en 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
2. R emove dust with a vacuum cleaner or by
washing.
After washing, allow to dry thoroughly in a shaded place.
3. R e place the Air Filter and close the Intake
Grille.
©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.
►
© Close the intake grille.
Hooks (two places)
(For purposes of example, the illustration shows the 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
mild detergent and warm water. If you wash the filter, be
sure to allow it to dry thoroughly in a shady place before
reinstalling.
• 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.
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TROUBLESHOOTING
“ “ in the event of a malfunction (burning smell, etc.), immediately stop operation, disconnect the
WARNING ! Power and consult authorized service personnel.
_ — Merely turning offthe unit's power switch will not completely disconnect the unitfrom the power
source. Always be sure to disconnect the Power Supply Plug and turn off your circuit breaker to
ensure that power is completely off.
Before requesting service, perform the following checks:
Symptom
Problem
See Page
NORMAL
FUNCTION
Doesn't operate immedi¬
ately:
1
• 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 is disconnected and then reconnected to a
power outlet, the protection circuit will operate for about 3 min¬
utes, 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 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.
-
• During Heating operation, a sizzling sound may be heard occa¬
sional. This sound is produced by the Automatic Defrosting op¬
eration.
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 unit's fan may stop, and
steam may be seen rising from the unit. This is due to Automatic
Defrosting operation.
17
Airflow is weak or stops:
• When Heating operation is started, fan speed is temporarily very
low, to allow internal parts to warm up.
-
• During Heating operation, the unit will temporarily stop opera¬
tion (between 7 and 15 minutes) as the Automatic Defrosting mode
operates. During Automatic Defrosting operation, the OPERATION
Indicator Lamp will flash.
17
• The fan may operate at very low speed during Dry operation or
when the unit is monitoring the room's temperature.
7
• During SUPER QUIET operation, the fan will operate at very low speed.
7
• In the monitor AUTO operation, the fan will operate at very low speed.
7
Water is produced from
the outdoor unit:
• During Heating operation, water may be produced from the out¬
door unit due to Automatic Defrosting operation.
17
The outdoor unit does
not stop even when
heating operation is
stopped:
• When there is frost on the outdoor unit when heating operation
is stopped, defrosting will be performed automatically.
At this time, OPERATION Indicator Lamp will flash, and operation
will stop after the outdoor unit has run for several minutes.
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TROUBLESHOOTING
Symptom
Items to check
See Page
CHECK ONCE
MORE
Doesn't operate at all:
• Has there been a power failure?
• Has a fuse blown out, or a circuit breaker been tripped?
-
• Is the POWER switch set to the OFF position?
6
• Is the timer operating? 9 to 10
Poor Cooling (or Heating)
performance:
• Is the air filter dirty?
• Are the air conditioner's 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?
7
The unit operates
differently from the
remote control unit's
setting:
• Are the Remote Control Unit's batteries dead?
• Are the Remote Control Unit's batteries loaded properly?
6
If the problem persists after performing these checks, or if you notice burning smells, or the
WARNING ! TIMER indicator Lamp (Fig. 3 ®) flashes, immediately stop operation, disconnect the Power and
— consult authorized service personnel.
OPERATING TIPS
Operation and Performance
Heating Performance
• This air conditioner operates on the heat-pump principle,
absorbing heat from outdoor air and transferring that heat
indoors. As a result, the operating performance is reduced
as outdoor air temperature drops. If you feel that insuffi¬
cient heating performance is being produced, we recom¬
mend 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.
Microcomputer-controlled Automatic Defrosting
• When using the Heating mode under conditions of low
outdoor air temperature 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 to 15 minutes).
During Automatic Defrosting operation, the OPERATION
Indicator Lamp (red) will flash.
In Event of Power Interruption
AUTO Restart
• 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.
+ Operated by setting before the power failure. Then, the Air
Flow Direction Louvers will automatically be restored to the
direction before the power failure.
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• 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 (green) will flash
(see page. 5).
• 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, reconnect it, and then use the re¬
mote control unit to resume operation.

OPERATING TIPS
Temperature and Humidity Range
Cooling and Dry Mode
Heating Mode
Indoor temperature
Maximum
95 °F DB/71 °F WB
88 °F DB
Minimum
64 °F DB / 55 °FWB
35 °F WB
Outdoor temperature
Maximum
115°F DB
75 °F DB / 65 °F WB
Minimum
32 °F DB
17 °F DB / 15 °F WB
Indoor humidity
Outdoor
Temperature
68 °F or above
About 80 % or less
If the unit is used for long periods under high-humidity condi¬
tions, condensation may form on the surface of the indoor unit,
and drip onto the floor or other objects underneath.
-
Outdoor
Temperature
below 68 °F
About 50 % or less
if the unit is used for long periods under high-humidity condi¬
tions, condensation may form on the surface of 1 t he indoor unit,
and drip onto the floor or other objects underneath.
-
DB : Dry Bulb Temperature
WB : Wet Bulb 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 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, Heating, Dehumidifying, and air-circulation of rooms in
ordinary dwellings.
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