AIR CONDITIONER
CEILING SUSPENSION TYPE
MANUAL DE INSTRUÇÕES
MANUAL DE FUNCIONAMIENTO
OPERATING MANUAL
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REFERENCE
FUJITSU GENERAL LIMITED
English
PART NO. 9374379330-03
CONTENTS
SAFETY PRECAUTIONS ....................................... 1
FEATURES AND FUNCTIONS .............................. 2
NAME OF PARTS ................................................... 2
PREPARATION ....................................................... 4
OPERATION ........................................................... 5
TIMER OPERATION ............................................... 7
SLEEP TIMER OPERATION ................................... 8
FILTER LAMP RESET ............................................. 8
MANUAL AUTO OPERATION ............................... 8
ADJUSTING THE DIRECTION OF
AIR CIRCULATION ................................................. 9
SWING OPERATION............................................ 10
ECONOMY OPERATION ...................................... 10
CLEANING AND CARE ........................................ 11
SELECTING THE REMOTE CONTROL UNIT
SIGNAL CODE ..................................................... 12
TROUBLESHOOTING .......................................... 12
OPERATING TIPS................................................. 14
SAFETY 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 safe operating conditions.
● “DANGER”, “WARNING” and “CAUTION” have the following meanings in these instructions:
DANGER!
WARNING!
CAUTION!
DANGER!
This mark indicates procedures which, if improperly performed, are most likely to
result in the death of or serious injury to the user or service personnel.
This mark indicates procedures which, if improperly performed, might lead to the
death or serious injury of the user.
This mark indicates procedures which, if improperly performed, might possibly result
in personal harm to the user, or damage to property.
● Do not attempt to install this air conditioner by yourself.
● This unit contains no user-serviceable parts. Always consult authorized service per-
sonnel for repairs.
● When moving, consult authorized service personnel for disconnection and installation of the unit.
● Do not become over-exposed to cold air by staying in the direct path of the airflow of
the air conditioner for extended periods of time.
● Do not insert fingers or objects into the outlet port or intake grilles.
● Do not start and stop air conditioner operation by turning off the electrical breaker
and so on.
● In the event of a malfunction (burning smell, etc.), immediately stop operation, turn
off the electrical breaker, and consult authorized service personnel.
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CAUTION!
● Provide occasional ventilation during use.
● Do not direct air flow 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.
● Tu rn off power source when not using the unit for extended periods.
● Always turn off the electrical breaker whenever cleaning the air conditioner or chang-
ing the air filter.
● Connection valves become hot during Heating; handle with care.
● Check the condition of the installation stand for damage.
● Do not place animals or plants in the direct path of the air flow.
● When restarting after a long period of disuse in the winter, turn the power switch on
at least 12 hours before starting the unit.
● 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.
● 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 metre away from either the in-
door or outdoor units.
● Avoid installing the air conditioner near a fireplace or other heating apparatus.
● Whe
n installing the indoor and outdoor units, take precautions to prevent access by infan
● Do not use inflammable gases near the air conditioner.
ts.
FEATURES AND FUNCTIONS
AUTOMATIC OPERATION
● COOLING MODEL
Merely press the START/STOP button, and the unit will
begin automatic operation in the Cooling or Dry mode as
appropriate, in accordance with the thermostat setting
and the actual temperature of the room.
● HEAT & COOL MODEL (REVERSE CYCLE)
Merely press the START/STOP button, and the unit will
begin automatic operation in either the Heating, Cooling
or Monitor modes as appropriate, in accordance with the
thermostat setting and the actual temperature of the room.
SLEEP TIMER
● COOLING MODEL
When the SLEEP timer button is pressed during Cooling
or Dry mode, the thermostat setting is gradually raised
during the period of operation. When the set time is
reached, the unit automatically turns off.
● HEAT & COOL MODEL (REVERSE CYCLE)
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 or Dry mode, the thermostat setting is gradually raised
during the period of operation. When the set time is
reached, the unit automatically turns off.
WIRELESS REMOTE CONTROL UNIT
The WIRELESS REMOTE CONTROL UNIT allows convenient
control of air conditioner operation.
OMNI-DIRECTIONAL AIR FLOW
(SWING OPERATION)
Three-dimensional control over air direction swing is possible through dual use of both an UP/DOWN air direction swing
and RIGHT/LEFT air direction swing. Since UP/DOWN air
direction flaps operate automatically according to the operating mode of the unit, it is possible to set air direction based
on the operating mode.
MILDEW-RESISTANT FILTER
The AIR FILTER has been treated to resist mildew growth,
thus allowing cleaner use and easier care.
NAME OF PARTS
8
1
9
456
3 2
7
Indoor Unit
1 Operating Control Panel
2 MANUAL AUTO button
3 Remote Control Signal Receiver
4 OPERATION Indicator Lamp
5 TIMER Indicator Lamp
6 FILTER Lamp
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 Intake Grille
8 UP/DOWN Air Direction Flaps
9 RIGHT/LEFT Air Direction Louvers
(behind UP/DOWN Air Direction Flaps)
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O
NAME OF PARTS
Remote controller
F
Display
Display
Display panel
G
H
K
1
3
2
4
5
A
CD
1 MODE button
2 ECONOMY button
3 SET TEMP. button (
/ )
4 FILTER RESET button
5 SLEEP button
6 FAN button
7 START/STOP button
8 SET button (Vertical)
9 SET button (Horizontal)
0 SWING button
A TIMER MODE button
B TIMER SET (
/ ) button
C CLOCK ADJUST button
D RESET button
E 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 conditioner.
6
7
8
9
0
B
E
I
L
M
J
To facilitate explanation, the accompanying illustration
has been drawn to show all possible indicators; in actual operation, however, the display will only show those
indicators appropriate to the current operation.
N
F Signal Transmitter
G Temperature SET Display
H ECONOMY Display
I Operating Mode Display
J SLEEP Display
K Transmit Indicator
L Fan Speed Display
M SWING Display
N Timer Mode Display
O Clock Display
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PREPARATION
Load Batteries (Size 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.
* Batteries are not included with this product.
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.
1
Use the tip of a ball-point pen or other small object to press the button.
Use the TIMER SET ( / ) buttons to adjust the
2
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.)
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.
Press the CLOCK ADJUST button 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 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
1 Mount the Holder. 2 Set the Remote Control
Unit.
Slide up
Pull out
3 To remove the Remote
Control Unit (when use at
hand).
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OPERATION
To Select Mode Operation
Press the START/STOP button.
1
The indoor unit’s OPERATION Indicator Lamp will light.
The air conditioner will start operating.
Press the MODE button to select the desired mode.
2
Each time the button is pressed, the mode will change in the following
order.
sss
AUTO COOL DRY
About three seconds later, the entire display will reappear.
HEAT FAN
tt
To Set the Room temperature
Press the SET TEMP. button.
button: Press to raise the thermostat setting.
button: Press to lower the thermostat setting.
● Thermostat setting range:
AUTO .................................. 18-30 °C
Heating ............................... 16-30 °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 button.
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:
Heating: Fan operates so as to optimally circulate warmed air.
However, the fan will operate at very low speed when the temperature
of the air issued from the indoor unit is low.
Cooling: As the room temperature approaches that of the thermostat setting,
the fan speed becomes slower.
Fan: The fan runs at the low fan speed.
The fan will operate at a very low setting during Monitor operation and at the start
of the Heating mode.
ssss
s
Example: When set to COOL.
Example: When set to 26 °C.
Example: When set to AUTO.
QUIET Operation
When set to Quiet:
QUIET operation begins. The indoor unit’s airflow will be reduced for quieter operation.
● QUIET operation cannot be used during Dry mode. (The same is true when dry
mode is selected during AUTO mode operation.)
● During Quiet operation, Heating and Cooling performance will be reduced somewhat. If the room does not warm up/cool down when using QUIET Operation,
please adjust the air conditioner’s Fan Speed.
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To Stop Operation
Press the START/STOP button.
The OPERATION Indicator Lamp will go out.
About AUTO CHANGEOVER Operation
AUTO: ● When AUTO CHANGEOVER operation first selected, the fan will ope-
rate 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 difference between thermostat setting and actual room temperature is more than +2 °C
→ Cooling or dry operation
(Monitor operation may be selected if the outdoor temperature is
low.)
If the difference between thermostat setting and actual room temperature is within ±2 °C
→ Monitor operation
If the difference between thermostat setting and actual room temperature is more than –2 °C
→ Heating operation
(Monitor operation may be selected if the outdoor temperature is
high.)
● 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 (Heating, 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 (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
low fan speed for about 3 to 5 minutes, after which it will switch to the
selected fan setting. This period of time is provided to allow the indoor
unit to warm up before beginning full operation.
● When the room temperature is very low, frost may form on the outside
unit, and its performance may be reduced. In order to remove such
frost, the unit will automatically enter the defrost cycle from time to
time. During Automatic Defrosting operation, the OPERATION Indicator Lamp will flash, and the heat operation will be interrupted.
● After the start of heating operation, it takes some time before the room
gets warmer.
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 Heating mode:
Set the thermostat to a temperature setting 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.
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.
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TIMER OPERATION
Before using the timer function, be sure that the Remote Control Unit is set to the correct current time (☞ P. 4).
If the indoor unit is connected to a wired remote controller, the wireless remote controller cannot be used to set the timer.
To Use the ON timer or OFF timer
Press the START/STOP button
1
(if the unit is already operating, proceed to step 2).
The indoor unit’s OPERATION Indicator Lamp will light.
Press the TIMER MODE button to select the OFF timer
2
or ON timer operation.
Each time the button is pressed the timer function changes in the following order:
CANCEL OFF ON
PROGRAM (OFF → ON, OFF ← ON)
The indoor unit’s green TIMER Indicator Lamp (orange) will light.
sss
t
Use the TIMER SET buttons to adjust the desired OFF
3
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
Press the START/STOP button
1
(if the unit is already operating, proceed to step 2).
The indoor unit’s OPERATION Indicator Lamp 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 will light.
Press the TIMER MODE button to select the PROGRAM
3
timer operation (OFF
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.
ON or OFF ON will display).
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
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,
QUIET mode), after making the timer setting
wait until the entire display reappears, then
press the appropriate buttons to change the
operating condition desired.
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,
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.
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SLEEP TIMER OPERATION
Unlike other timer functions, the SLEEP timer is used to set the length of time until air conditioner operate is stopped.
If the indoor unit is connected to a wired remote controller, the wireless remote controller cannot be used to set the sleep
timer.
To Use the SLEEP Timer
While the air conditioner is operating or stopped, press the
SLEEP button.
The indoor unit’s OPERATION Indicator Lamp lights and the TIMER Indicator Lamp
light.
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
Press the SLEEP button once again and set the time using the
TIMER SET (
About five seconds later, the entire display will reappear.
/ ) buttons.
button: Press to advance the time.
button: Press to reverse the time.
To Stop the Air Conditioner During
Timer 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 set 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 1 °C every thirty minutes. When the
thermostat has been lowered a total of 4 °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
30
minutes
1 hour
1 hour
30 minutes
1 °C
2 °C
Set time
3 °C
4 °C
During Cooling/Dry operation:
When the SLEEP timer is set, the thermostat setting is automatically raised 1 °C every 1 hour. 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
FILTER LAMP RESET
Some indoor unit models are equipped with a filter lamp in the indoor unit display to indicate when it is time to clean the air
filters.
To Reset Filter Lamp
Press the FILTER RESET button.
The indoor unit’s FILTER LAMP will go out.
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 on the main unit control
panel.
To stop operation, press the MANUAL AUTO button once again.
● 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 remote control unit.
● The fan speed selected will be “AUTO”
and the thermostat setting will be
24 °C.
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ADJUSTING THE DIRECTION OF AIR CIRCULATION
Instructions relating to heating (*) are applicable only to “HEAT & COOL MODEL” (Reverse Cycle).
● Adjust the up, down, left and right AIR directions with the AIR DIRECTION buttons on the Remote Control Unit.
● Use the AIR DIRECTION buttons after the Indoor Unit has started operating and the airflow-direction louvers have stopped
moving.
Vertical Air Direction Adjustment
Press the SET button (Vertical).
Each time the button is pressed, the air direction range will change as follows:
1
2 3 4 5
Types of Air flow Direction Setting:
1, 2, 3 : During Cooling/Dry Modes
1, 2, 3, 4, 5 :*During Heating mode
The remote control unit’s display does
not change.
1
2
3
4
5
● 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.
Horizontal flow 1 : During Cooling/Dry mode
Downward flow 5 : *During Heating mode
● During AUTO mode operation, for the first minute after beginning operation,
airflow will be horizontal 1; the air direction cannot be adjusted during this period.
Horizontal Air Direction Adjustment
Press the SET button (Horizontal).
Each time the button is pressed, the air direction range will change as follows:
DANGER!
Never place fingers or foreign objects inside
the outlet ports, since the internal fan operates at high speed and could cause personal
injury.
● Attempting to move UP/DOWN air direction flaps or RIGHT/LEFT air direction louvers 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 UP/DOWN air
direction flaps in the Heating range (4
to 5) for long periods of time, since
water vapor may condense near the
outlet 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
heating range 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 air
direction and room temperature
should be considered carefully when
making settings.
1
2 3 4 5
The remote control unit’s display does not change.
RIGHT/LEFT air direction louvers
● Use the air direction adjustments within the ranges shown as follows.
1
2
3
5
4
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SWING OPERATION
Begin air conditioner operation before performing this procedure.
To select SWING Operation
Press the SWING button.
Each time the SWING button is pressed, the swing operation will change in the
following order.
Up/down swing operation Left/right swing operation
Swing operation stops Up/down/left/right swing operation
To stop SWING Operation
Press the SWING button and select STOP.
Airflow direction will return to the setting before swing was begun.
About Swing Operation
● To select Up/down swing operation
The type of operation
Cooling/Dry
Heating
Fan
● To select Left/right swing operation
The type of operation
Cooling/Dry
Heating
Fan
1 to 5 (All range)
1 to 5 (All range)
1 to 5 (All range)
Range of swing
1 to 4
3 to 5
1 to 5
Range of swing
● The SWING operation may stop temporarily when the air
conditioner’s fan is not operating, or when operating at
very low speeds.
● The SWING operation may stop temporarily when the air
conditioner’s fan is not operating, or when operating at
very low speeds.
ECONOMY OPERATION
Begin Air Conditioner operation before performing this procedure.
To Use the ECONOMY Operation
Press the ECONOMY button.
“ECO” appears on the Remote Control Unit display.
Economy operation begins.
To Stop the ECONOMY Operation
Press the ECONOMY button again.
“ECO” disappears from the Remote Control Unit display.
Normal operation begins.
About ECONOMY Operation
At the maximum output, ECONOMY Operation is approximately 70% of normal air conditioner operation for cooling and
heating.
When ECONOMY operation is performed during the cooling mode, dehumidification is improved. This function is especially
convenient when you want to remove the humidity in the room without significantly lowering the room temperature.
During ECONOMY operation, the thermostat setting automatically changes according to the temperature to avoid Unnecessary cooling and heating for the most economical operation.
● If the room is not cooled (or heated) well during economy operation, select normal operation.
● Once air conditioner operation is stopped, normal operation begins when the indoor unit is turned on again.
● During the monitor period in the AUTO mode, the air conditioner operation will not change to ECONOMY operation even if
ECONOMY operation is selected by pressing the ECONOMY operation button.
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CLEANING AND CARE
CAUTION!
● To avoid excessive wear of the part and components or malfunctioning of the air conditioning, the user/consumer shall
perform preventive maintenance through an accredited technical assistance, periodically. To know the preventive maintenance periodicity, the consumer shall check with the accredited installer or an accredited technical assistance.
● 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.
● It is recommended for the user/consumer to demand a copy of the Work Order every time there is a visit of a technical
assistance for verification, maintenance, test or repair of the product.
● When cleaning the 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 unit body to liquid insecticides or hairsprays.
● If the unit will not be operated for a period of one month or more, be sure to allow the inner parts of the unit to dry
thoroughly, in advance, by operating the unit in fan mode for half a day.
● Before cleaning the air conditioner, be sure to turn it off and turn off the electrical breaker.
Cleaning the Air Filter
When the FILTER Lamp is blinking, remove
the filter and clean it.
1. Pull the air filters upward to remove them.
Remove the air filters by raising its handle while pulling
it out towards you.
Air filter
3. Re-attach the air filters to the intake grille.
The air filters fit onto the inside of the intake grille.
● Dust can be cleaned from the air filter either with a
vacuum cleaner, or by washing the filter in a solution of
mild detergent and warm water. If you wash the filter, be
sure to allow it to dry thoroughly in a shady place before
reinstalling.
● If dirt is allowed to accumulate on the air filter, air flow
will be reduced, lowering operating efficiency and increasing noise.
● After turning the power on, press the filter button on the
remote control to turn off the filter lamp.
2. Clean the air filters.
Remove the dust from the air filters by vacuuming or
washing them. After washing, allow the air filters to dry
thoroughly in an area protected from sunlight.
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SELECTING THE REMOTE CONTROL UNIT SIGNAL CODE
When two or more air conditioners are installed in a room and the remote control unit is operating an air conditioner other
than the one you wish to set, change the signal code of the remote control unit to operate only the air conditioner you wish to
set (four selections possible).
When two or more air conditioners are installed in a room, please contact your retailer to set the individual air conditioner
signal codes.
Selecting the Remote Control Unit Signal Code
Use the following steps to select the signal code of the remote control unit. (Note
that the air conditioner cannot receive a signal code if the air conditioner has not
been set for the signal code.)
Press the START/STOP button until only the clock is
1
displayed on the remote control unit display.
Press the MODE button for at least five seconds to dis-
2
play the current signal code (initially set to
Press the / buttons to change the signal code be-
3
tween
. Match the code on the display to the
air conditioner signal code.
Press the MODE button again to return to the clock
4
display. The signal code will be changed.
If no buttons are pressed within 30 seconds after the signal code is displayed, the system returns to the original clock
display. In this case, start again from step 1.
).
The air conditioner signal code is set to A prior to shipment. Contact your retailer to change the signal code.
The remote control unit resets to signal code A when the batteries in the remote control unit are replaced. If you use a
signal code other than signal code A, reset the signal code after replacing the batteries.
If you do not know the air conditioner signal code setting, try each of the signal codes (
code which operates the air conditioner.
) until you find the
TROUBLESHOOTING
Instructions relating to heating (*) are applicable only to “HEAT & COOL MODEL” (Reverse Cycle).
WARNING!
Before requesting service, perform the following checks:
NORMAL
FUNCTION
Doesn’t operate immediately:
Noise is heard:
In the event of a malfunction (burning smell, etc.), immediately stop operation, disconnect the
power supply plug or turn off the circuit breaker, 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 disconnect the power supply plug or turn off your circuit breaker 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.
Problem
See page
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*● During Heating operation, a sizzling sound may be heard occa-
sionally. This sound is produced by the Automatic Defrosting
operation.
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TROUBLESHOOTING
Instructions relating to heating (*) are applicable only to “HEAT & COOL MODEL” (Reverse Cycle).
NORMAL
FUNCTION
Symptom
Smells:
Mist or steam are
emitted:
Airflow is weak or stops:
Problem
● 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.
*● During Heating operation, the outdoor unit’s fan may stop, and
steam may be seen rising from the unit. This is due to the Automatic Defrosting operation.
*● 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 to a higher setting.
*● During Heating operation, the unit will temporarily stop opera-
tion (between 4 and 15 minutes) as the Automatic Defrosting mode
operates. During the Automatic Defrosting operation, the OPERATION indicator lamp will flash.
● The fan may operate at very low speed during Dry operation or
when the unit is monitoring the room’s temperature.
● During QUIET operation, the fan will operate at very low speed.
● In the monitor AUTO operation, the fan will operate at very low
speed.
See page
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14
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14
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Water is produced from
the outdoor unit:
The FILTER lamp blinks:
CHECK ONCE
MORE
If the problem persists after performing these checks, or if you notice burning smells, or the TIMER indicator lamp and operation indicator lamp flashes, stop operation immediately, disconnect the power supply plug, and consult with authorized
service personnel.
Doesn’t operate at all:
Poor Cooling (or *Heating)
performance:
The unit operates differently from the remote control unit’s setting:
Signal is not received after
replacing the batteries for
the remote control unit:
*● During Heating operation, water may be produced from the out-
door unit due to the Automatic Defrosting operation.
● Clean the filter. Afterwards, turn the FILTER lamp off.
● Has the circuit breaker been turned off?
● 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?
● 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 QUIET operation?
● Are the remote control unit’s batteries dead?
● Are the remote control unit’s batteries loaded properly?
● Are you using an air conditioner signal code other than signal
code A?
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8
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7 to 8
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4
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OPERATING TIPS
Instructions relating to heating (*) are applicable only to “HEAT & COOL MODEL” (Reverse Cycle).
*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 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 conditioner until the room is heated.
*
When Indoor and Outdoor Temperature are High
● When both indoor and outdoor temperatures are high
during use of the heating mode, the outdoor unit’s fan
may stop at times.
AUTO Restart
*Microcomputer-controlled Automatic Defrosting
● When using the Heating mode under conditions of low
outdoor temperature and high humidity, frost may form
on the outdoor unit, resulting in reduced operating performance.
In order to prevent this kind of reduced performance, this
unit is equipped with a Microcomputer-controlled Automatic Defrosting function. If frost forms, the air conditioner will temporarily stop, and the defrosting circuit will
operate briefly (for about 4 to 15 minutes).
During Automatic Defrosting operation, the OPERATION
indicator lamp will flash.
*Low Ambient Cooling
● When the outdoor temperature drops, the outdoor unit’s
fans may switch to Low Speed.
*Hot start (for heating)
● The indoor unit prevents cold drafts when heating operation begins.
The indoor unit fan will not operate or it will operate at a
very low speed until the heat exchanger reaches the set
temperature.
In Event of Power Interruption
● Should the power supply to the air conditioner be interrupted by a power failure, the air conditioner will restart
automatically in the previously selected mode once the
power is restored.
● Should a power failure occur during TIMER operation,
the timer will be reset and the unit will begin (or stop)
operating under the new timer setting. In this event, the
TIMER indicator lamp will flash.
● 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.
Notice
Instructions relating to heating (*) are applicable only to “HEAT & COOL MODEL” (Reverse Cycle).
*● During use of the heating mode, the outdoor unit will
occasionally commence the defrost operation for brief
periods. During the defrosting operation, if the user sets
the indoor unit for heating again, the defrosting mode
will continue, and the heating operation will begin after
completion of defrosting, with the result that some time
may be required before warm air is emitted.
*● During use of the heating mode, the top of the indoor
unit may become warm, but this is due to the fact that
coolant is circulated through the indoor unit even when
it is stopped; it is not a malfunction.
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