OPERATING MANUAL
MODE D’EMPLOI
MANUAL DE FUNCIONAMIENTO
AIR CONDITIONER
FLOOR CONSOLE/
UNDER CEILING
DUAL TYPE
KEEP THIS MANUAL
FOR FUTURE REFERENCE
P/N9359944058
FUJITSU GENERAL LIMITED
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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 rised
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 gradu-
ally lowered during the period of operation; during Cool-
ing or Dry mode, the thermostat setting is gradually rised
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 possi-
ble 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 oper-
ating 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.
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NAME OF PARTS
Instructions relating to heating (*) are applicable only to “HEAT & COOL MODEL” (Reverse Cycle).
Fig. 1
Fig. 3
Fig
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Fig. 1 Indoor Unit
Fig. 4 Remote Control Unit
1 Operating Control Panel (Fig. 2)
2 MANUAL AUTO button
C SLEEP button
D MASTER CONTROL button
E SET TEMP./SET TIME buttons (
F Signal Transmitter
3 Remote Control Signal Receiver
4 OPERATION Indicator Lamp (red)
5 TIMER Indicator Lamp (green)
6 SWING Indicator Lamp (orange)
(VERTICAL SWING)
)
G TIMER button
H FAN CONTROL button
I START/STOP button
J AIR FLOW DIRECTION
VERTICAL SET button
K AIR FLOW DIRECTION
VERTICAL SWING button
L AIR FLOW DIRECTION
HORIZONTAL SET button
M AIR FLOW DIRECTION
HORIZONTAL SWING button
N TIME ADJUST button
O ACL button
7 SWING Indicator Lamp (orange)
(HORIZONTAL SWING)
ꢀ If the TIMER indicator lamp flashes when
the timer is operating, it indicates that a
fault has occurred with the timer setting
(See page 16 Auto Restart).
8 Intake Grille (Fig. 3)
9 Air Filter
0 UP/DOWN Air Direction Flaps
A RIGHT/LEFT Air Direction Louvers
(behind UP/DOWN Air Direction Flaps)
B Drain Hose
Rear side (Fig. 5)
P TEST RUN
ꢀ
Touch the two metal contacts with a me-
tallic object to send the signal to perform
a test run.
ꢀ
Perform a test run only when installing the
air conditioner. If the signal to perform a
test run is received during normal opera-
tion, the air conditioner’s thermostat will
malfunction.
ꢀ
ꢀ
If the signal to perform a test run is re-
ceived during normal operation, the unit
will switch to the test operation mode and
the indoor unit’s OPERATION and TIMER
indicator lamps will flash simultaneously.
To stop the test operation mode, press the
START/STOP button to stop the air condi-
tioner.
Q Remote Control Unit Display (Fig. 6)
R Transmit Indicator
S Clock Display
T Operating Mode Display
U Timer Mode Display
V Fan Speed Display
W Temperature Set Display
X Timer Set Indicator
Y Temperature Set Indicator
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PREPARATION
CAUTION!
Load Batteries (R03/LR03/AAA × 2)
ꢀ 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.
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.
ꢀ If leaking battery fluid comes in contact
with your skin, eyes, or mouth, immedi-
ately wash with copious amounts of
water, and consult your physician.
ꢀ Dead batteries should be removed
quickly and disposed of properly, either
by placing in a public battery collection
receptacle, or by returning to appropri-
ate authority.
Insert batteries.
2
3
Be sure to align the battery polarities (
) correctly.
Close the battery compartment lid.
ꢀ 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 with the tip of a
ballpoint pen or other small object.
Set the Current time
Press the TIME ADJUST button.
1
2
Use the tip of a ball-point pen or other small object to press the button.
Use the (
) SET TIME buttons to adjust the clock
to the current time.
button: Press to advance the time.
button: Press to reverse the time.
(Each time the buttons are pressed, the time will be advanced/reversed in
one-minute increments; hold the buttons depressed to change the time
quickly in ten-minute increments.)
Press the TIME ADJUST button again.
This completes the time setting and starts the clock.
3
To Use the Remote Control Unit
ꢀ The remote control unit must be pointed at signal receiver 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
Slide up
Insert
Press in
Pull out
Screws
1
Mount the Holder.
2
Set the Remote Control Unit.
3
To remove the Remote
Control Unit (when use at
hand).
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OPERATION
Instructions relating to heating (*) are applicable only to “HEAT & COOL MODEL” (Reverse Cycle).
To Select Mode Operation
Press the START/STOP button.
1
The indoor unit’s OPERATION indicator lamp (red) will light.
The air conditioner will start operating.
Press the MASTER CONTROL button to select the de-
2
sired mode.
Each time the button is pressed, the mode will change in the following
order:
s
s
s
AUTO
COOL
DRY
t
t
*HEAT
FAN
About three seconds later, the entire display will reappear.
Example: When set to COOL
To Set the Thermostat
Press the SET TEMP. buttons.
button: Press to rise the thermostat setting.
button: Press to lower the thermostat setting.
ꢀThermostat setting range:
AUTO .................................. 64 to 88 °F
* Heating ............................... 60 to 88 °F
Cooling/Dry ........................ 64 to 88 °F
The thermostat cannot be used to set room temperature during the FAN mode (the
temperature will not appear on the remote control unit’s display).
About three seconds later, the entire display will reappear.
The thermostat setting should be considered a standard value, and may differ
somewhat from the actual room temperature.
Example: When set to 88 °F
To Set the Fan Speed
Press the FAN CONTROL button.
Each time the button is pressed, the fan speed changes in the following order:
s
AUTO
s
HIGH
s
s
MED
LOW
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 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 a very low setting during Monitor operation
and at the start of the Heating mode.
To Stop Operation
Press the START/STOP button.
The OPERATION indicator lamp (red) will go out.
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OPERATION
Instructions relating to heating (*) are applicable only to “HEAT & COOL MODEL” (Reverse Cycle).
About Mode Operation
AUTO:
COOLING MODEL
ꢀ When the room temperature is 4 °F higher
than the set temperature, the mode will
Cooling Operation
switch between Cooling and Drying.
Dry Operation
ꢀ During the Drying mode operation, the
FAN setting should be switched to LOW
Thermostat control
for a gently cooling effect during which
the fan may temporarily stop rotating.
4 °F
ꢀ If the mode automatically selected by the
unit is not satisfactory, see page 6 for in-
Setting temperature
structions on changing the mode setting
(COOL, DRY, FAN).
AUTO (* AUTO CHANGEOVER):
HEAT & COOL MODEL (Reverse cycle)
ꢀ When AUTO CHANGEOVER is selected, the air conditioner selects the appropri-
ate operation mode (Cooling or Heating) according to your room’s present tem-
perature.
ꢀ When AUTO CHANGEOVER is first selected, the fan will operate at very low speed
for about one minute while the unit determines the current conditions of the
room and accordingly selects the proper operation mode.
ꢀ When the air conditioner has adjusted your room’s temperature to near the ther-
mostat 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, Cool-
ing) to adjust the temperature to the value set in the thermostat. (The monitor
operation range is 4 °F relative to the thermostat setting.)
ꢀ If the mode automatically selected by the unit is not satisfactory, see page 6 for
instructions on changing the mode setting (HEAT, COOL, DRY, FAN).
*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 set-
ting. This period of time is provided to allow the indoor unit to warm up before
beginning full operation.
* During Heating mode:
Set the thermostat to a temperature set-
ting that is higher than the current room
temperature. The Heating mode will not
operate if the thermostat is set lower than
the actual room temperature.
ꢀ 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 De-
frosting operation, the OPERATION indicator lamp (red) will flash, and the heat
operation will be interrupted.
During Cooling/Dry mode:
Set the thermostat to a temperature set-
ting that is lower than the current room
temperature. The Cooling and Dry modes
will not operate if the thermostat is set
higher than the actual room temperature
(in Cooling mode, the fan alone will oper-
ate).
Cooling:
ꢀ Use to cool your room.
During Fan mode:
The heat and cool functions of this unit
cannot operate at the same time.
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.
Fan:
ꢀ Use to circulate the air throughout your room.
En-7
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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 (See page 5).
To Use the ON timer or OFF timer
To Cancel the Timer
Press the START/STOP button
Use the TIMER button to select “TIMER
1
RESET”.
(if the unit is already operating, proceed to step 2).
The indoor unit’s OPERATION indicator lamp (red) will light.
The air conditioner will return to normal
operation.
Press the TIMER button to select the OFF timer or ON
timer operation.
Each time the button is pressed the timer function changes in the follow-
To Change the Timer Settings
2
Perform steps 2 and 3.
To Stop Air Conditioner Operation
while the Timer is Operating
ing order:
Press the START/STOP button.
s
s
s
RESET
OFF
ON
PROGRAM (OFF → ON, OFF ← ON)t
To Change Operating Conditions
If you wish to change the operating
conditions (Mode, Fan Speed, Thermostat
Setting), after making the timer setting,
wait until the entire display reappears, then
press the appropriate buttons to change
the operating condition desired.
The indoor unit’s TIMER indicator lamp (green) will light.
Use the SET TIME buttons to adjust the desired OFF
time or ON time.
Set the time while the time display is flashing (the flashing will continue
for about five seconds).
3
button: Press to advance the time.
button: Press to reverse the time.
About five seconds later, the entire display will reappear.
To Use the PROGRAM timer
Press the START/STOP button
To Cancel the Timer
Use the TIMER button to select “TIMER
RESET”.
The air conditioner will return to normal
operation.
1
(if the unit is already operating, proceed to step 2).
The indoor unit’s OPERATION indicator lamp (red) will light.
Set the desired times for OFF timer and ON timer.
To Change the Timer Settings
2
See the section “To Use the ON timer or OFF timer” to set the desired
1. Follow the instructions given in the section
“To Use the ON Timer or OFF Timer” to se-
lect the timer setting you wish to change.
mode and times.
About three seconds later, the entire display will reappear.
The indoor unit’s TIMER indicator lamp (green) will light.
2. Press the TIMER button to select either
OFF → ON or OFF ← ON.
Press the TIMER button to select the PROGRAM timer
To Stop Air Conditioner Operation
while the Timer is Operating
3
operation (either 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.
Press the START/STOP button.
To Change Operating Conditions
ꢀ The PROGRAM timer will begin operation. (If the ON timer has been
selected to operate first, the unit will stop operating at this point.)
If you wish to change operating conditions
(Mode, Fan Speed, Thermostat Setting),
after making the timer setting, wait until
the entire display reappears, then press the
appropriate buttons to change the operat-
ing condition desired.
About five seconds later, the entire display will reappear.
About the PROGRAM timer
About the ON timer
ꢀ The PROGRAM timer allows you to integrate OFF timer
and ON timer operations in a single sequence. The se-
quence can involve one transition from OFF timer to ON
timer, or from ON timer to OFF timer, within a twenty-
four hour period.
ꢀ The timer function is designed to bring your room to a
comfortable temperature by the set time; as a result, the
unit automatically begins operation before the set time
so that the room reaches the desired temperature by the
time set on the timer.
ꢀ The first timer function to operate will be the one set near-
est 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).
ꢀ The hotter it is in summer, or the colder it is in winter, the
earlier that operation will begin.
* During Heating Operation ....... from 45 to 10 minutes be-
fore set time.
ꢀ One example of PROGRAM timer use might be to have
the air conditioner automatically stop (OFF timer) after
you go to sleep, then start (ON timer) automatically in
the morning before you rise.
During Cooling/Dry Operation ... from 20 to 10 minutes be-
fore set time.
During Fan Operation .............. at the set time.
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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.
To Use the SLEEP timer
To Cancel the Timer:
While the air conditioner is operating or stopped, press the
Use the TIMER button to select “TIMER
RESET”.
SLEEP button.
The air conditioner will return to normal
operation.
Both the indoor unit’s OPERATION indicator lamp (red) and the TIMER indicator
lamp (green) will light.
To Stop the Air Conditioner During
Timer Operation:
To Change the Timer Settings
Press the START/STOP button.
Press the SLEEP button once again and set the time using the
SET TIME buttons.
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.
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 (HEAT & COOL MODEL (Reverse
cycle) only):
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.
During Cooling/Dry operation:
When the SLEEP timer is set, the thermostat setting is auto-
matically rised 2 °F every sixty minutes. When the thermostat
has been rised a total of 4 °F, the thermostat setting at that
time is maintained until the set time has elapsed, at which
time the air conditioner automatically turns off.
SLEEP timer setting
SLEEP timer setting
2 °F
Set time
1 hour
4 °F
6 °F
8 °F
30
minutes
1 hour
4 °F
2 °F
1 hour
30 minutes
Set time
MANUAL AUTO OPERATION
Use the MANUAL AUTO operation in the event the remote control unit is lost or otherwise unavailable.
CAUTION!
How To Use the Main Unit Controls
Do not press the MANUAL AUTO button with
wet hands or pointed objects, otherwise an
electric shock or malfunction may occur.
Press the MANUAL AUTO button on the main unit control
panel.
To stop operation, press the MANUAL AUTO button once again.
G 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 7).
G The fan speed selected will be “AUTO”
and the thermostat setting will be
74 °F.
En-9
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ADJUSTING THE DIRECTION OF AIR CIRCULATION
Instructions relating to heating (*) are applicable only to “HEAT & COOL MODEL” (Reverse Cycle).
Vertical (up-down) direction of airflow is adjusted by pressing the remote control unit’s AIR FLOW DIRECTION VERTICAL SET
button. Horizontal (right-left) direction of airflow is adjusted by pressing the remote control unit’s AIR FLOW DIRECTION
HORIZONTAL SET button.
DANGER!
Vertical Air Direction Adjustment
Never place fingers or foreign objects inside
the outlet ports, since the internal fan oper-
ates at high speed and could cause personal
injury.
Press the AIR FLOW DIRECTION VERTICAL SET button.
Each time the button is pressed, the air direction range will change as follows:
1
2
3
4
5
6
7
ꢀ Always use the remote control unit’s
AIR FLOW DIRECTION button to adjust
the UP/DOWN air direction flaps or
RIGHT/LEFT air direction louvers. At-
tempting to move them manually
could result in improper operation; in
this case, stop operation and restart.
The louvers should begin to operate
properly again.
Types of Air flow Direction Setting:
1,2,3,4
5,6,7
:
:
During Cooling/Dry Mode
* During Heating mode
The remote control unit’s display does
not change.
ꢀ During use of the Cooling and Dry
modes, do not set the UP/DOWN air
direction flaps in the Heating range (5
to 7) for long periods of time, since
water vapor may condense near the
outlet louvers and drops of water may
drip from the air conditioner.
ꢀ Use the air direction adjustments within the ranges shown above.
ꢀ The vertical airflow direction is set automatically as shown, in accordance with
the type of operation selected.
During Cooling/Dry mode : Horizontal flow 1
* During Heating mode
: Downward flow 7
ꢀ When used in a room with infants, chil-
dren, elderly or sick persons, the air
direction and room temperature
should be considered carefully when
making settings.
ꢀ During AUTO mode operation, for the first minute after beginning operation,
airflow will be horizontal 1; the air direction cannot be adjusted during this pe-
riod.
Horizontal Air Direction Adjustment
Press the AIR FLOW DIRECTION HORIZONTAL SET button.
Each time the button is pressed, the air direction range will change as follows:
1
2
3
4
5
The remote control unit’s display does
not change.
Example: When set to vertical air direc-
RIGHT/LEFT air direction louvers
tion
ꢀ Use the air direction adjustments within the ranges shown above.
Example: When set to horizontal air di-
rection
Fig. 8
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SWING OPERATION
Begin air conditioner operation before performing this procedure.
To select Vertical airflow SWING Operation
Press the AIR FLOW DIRECTION VERTICAL SWING button.
The SWING indicator lamp (VERTICAL SWING) (orange) will light.
In this mode, the UP/DOWN air direction flaps will swing automatically to direct the
air flow both up and down.
To Stop Vertical airflow SWING Operation
Press the AIR FLOW DIRECTION VERTICAL SWING button
once again.
The SWING indicator lamp (VERTICAL SWING) will go out.
Airflow direction will return to the setting before swing was begun.
Example: When set to vertical swing
About Swing Operation
G The range of swing is relative to the currently set airflow
direction.
G If the swing range is not as desired, use the remote con-
trol unit’s AIR FLOW DIRECTION VERTICAL SET button to
change the range of swing.
Air flow direction set
Range of swing
1 to 3
G The SWING operation may stop temporarily when the air
conditioner’s fan is not operating, or when operating at
very low speeds.
1
2
3
4
5
6
7
1 to 4
2 to 5
3 to 6
4 to 7
G During use of the Cooling and Dry modes, do not set the
air UP/DOWN direction flaps, in the Heating range (5 to
7) for long periods of time, since water vapor may con-
dense near the outlet louvers and drops of water may
drip from the air conditioner.
5 to 7
1 to 7 (All range)
Air direction range (See page 10, Fig. 7)
To select Horizontal airflow SWING Operation
Press the AIR FLOW DIRECTION HORIZONTAL SWING button.
The SWING indicator lamp (HORIZONTAL SWING) (orange) will light.
In this mode, the RIGHT/LEFT air direction louvers will swing automatically to direct
the airflow both right and left.
To Stop Horizontal airflow SWING Operation
Press the AIR FLOW DIRECTION HORIZONTAL SWING button
once again.
The SWING indicator lamp (HORIZONTAL SWING) will go out.
Airflow direction will return to the setting before swing was begun.
Example: When set to horizontal swing
About Swing Operation
G The range of swing is relative to the currently set airflow
direction.
G If the swing range is not as desired, use the remote con-
trol unit’s AIR FLOW DIRECTION HORIZONTAL SET but-
ton to change the range of swing.
Air flow direction set
Range of swing
1 to 5 (All range)
1 to 3
2 to 4
3 to 5
1 to 5 (All range)
G The SWING operation may stop temporarily when the air
conditioner’s fan is not operating, or when operating at
very low speeds.
1
2
3
4
5
Air direction range (See page 10, Fig. 8)
En-11
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CLEANING AND CARE
ꢀ Before cleaning the air conditioner, be sure to turn it off and disconnect the power supply cord.
CAUTION!
ꢀ Be sure the intake grille is installed securely.
ꢀ When removing and replacing the air filters, be sure not to touch the heat exchanger, as per-
sonal injury may result.
Cleaning the Air Filter
1. Pull out both sides and the center of the
intake grille.
4. Re-attach the air filters to the intake grille.
1 The air filters fit onto the inside of the intake grille.
(figure 1)
2 The bottom edges of the air filters should fit into the
filter brackets. (figure 1)
3 The air filters should be pushed down so that their
top edges fit under the projections at the top of the
intake grille. (figure 2)
About 30 mm
(1-3/16”)
Air Filter
Side Panel
Hook
(Figure 1)
(Figure 2)
Notch
Arm
Arm
Intake Grille
Filter bracket
2. Pull the air filters upward to remove them.
Push the air filter handles away from the intake grille in
direction 1, then pull out the air filters.
5. Push in both sides and the center of the
intake grille.
1
Air Filter
Bracket
Base
Handle
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 de-
tergent and warm water. If you wash the filter, be sure to
allow it to dry thoroughly in a shady place before rein-
stalling.
3. 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.
ꢀ 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.
ꢀ When used for extended periods, the unit may accumulate dirt inside, reducing its performance. We recommend that the
unit be inspected regularly, in addition to your own cleaning and care. For more information, consult authorized service
personnel.
ꢀ When cleaning the unit’s body, do not use water hotter than 104 °F, harsh abrasive cleansers, or volatile agents like
benzene or thinner.
ꢀ Do not expose the unit body to liquid insecticides or hairsprays.
ꢀ 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.
En-12
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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.
To operate only
one of multiple
air conditioners
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
displayed on the remote control unit display.
1
Press the MASTER CONTROL button for at least five
seconds to display the current signal code (initially set
to ).
2
Press the
tween
air conditioner signal code.
buttons to change the signal code be-
. Match the code on the display to the
3
4
Press the MASTER CONTROL button again to return to
the clock 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
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TROUBLESHOOTING
Instructions relating to heating (*) are applicable only to “HEAT & COOL MODEL” (Reverse Cycle).
In the event of a malfunction (burning smell, etc.), immediately stop operation, 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 disconnect the power supply plug or turn off your circuit breaker to
ensure that power is completely off.
WARNING!
Before requesting service, perform the following checks:
Symptom
Problem
See Page
NORMAL
FUNCTION
Doesn’t operate immedi-
ately:
ꢀ If the unit is stopped and then immediately started again, the com-
pressor will not operate for about 3 minutes, in order to prevent
fuse blowouts.
—
ꢀ Whenever the power supply plug is disconnected and then recon-
nected to a power outlet, the protection circuit will operate for about
3 minutes, preventing unit operation during that period.
Noise is heard:
ꢀ During operation and immediately after stopping the unit, the
sound of water flowing in the air 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-
sionally. This sound is produced by the Automatic Defrosting op-
eration.
15
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 con-
densation 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 Auto-
matic Defrosting operation.
15
Airflow is weak or stops:
*ꢀ When Heating operation is started, fan speed is temporarily very
low, to allow internal parts to warm up.
*ꢀ During Heating operation, if the room temperature rises above
the thermostat setting, the outdoor unit will stop, and the indoor
unit will operate at very low fan speed. If you wish to warm the
room further, set the thermostat to a higher setting.
—
*ꢀ During Heating operation, the unit will temporarily stop opera-
tion (between 7 and 15 minutes) as the Automatic Defrosting mode
operates. During the Automatic Defrosting operation, the OPERA-
TION indicator lamp will flash.
15
ꢀ The fan may operate at very low speed during Dry operation or
when the unit is monitoring the room’s temperature.
6
6
ꢀ In the monitor AUTO operation, the fan will operate at very low
speed.
Water is produced from
the outdoor unit:
*ꢀ During Heating operation, water may be produced from the out-
15
door unit due to the Automatic Defrosting operation.
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TROUBLESHOOTING
Instructions relating to heating (*) are applicable only to “HEAT & COOL MODEL” (Reverse Cycle).
Symptom
Items to check
ꢀ Has there been a power failure?
See Page
CHECK ONCE Doesn’t operate at all:
—
MORE
ꢀ Has a fuse blown out, or a circuit breaker been tripped?
8 to 9
ꢀ Is the timer operating?
Poor Cooling (or *Heating) ꢀ Is the air filter dirty?
performance:
ꢀ 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?
The unit operates differ- ꢀ Are the remote control unit’s batteries dead?
ently from the remote con-
trol unit’s setting:
5
ꢀ Are the remote control unit’s batteries loaded properly?
Signal is not received after ꢀ Are you using an air conditioner signal code other than signal
13
replacing the batteries for
the remote control unit:
code A?
If the problem persists after performing these checks, or if you notice burning smells, or the TIMER indicator lamp flashes, stop
operation immediately, disconnect the power supply plug, and consult with authorized service personnel.
OPERATING TIPS
Instructions relating to heating (*) are applicable only to “HEAT & COOL MODEL” (Reverse Cycle).
Operation and Performance
*Heating Performance
*Microcomputer-controlled Automatic Defrosting
ꢀ 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.
ꢀ When using the Heating mode under conditions of low
outdoor temperature and high humidity, frost may form
on the outdoor unit, resulting in reduced operating per-
formance.
In order to prevent this kind of reduced performance, this
unit is equipped with a Microcomputer-controlled Auto-
matic Defrosting function. If frost forms, the air condi-
tioner will temporarily stop, and the defrosting circuit will
operate briefly (for about 7 to 15 minutes).
ꢀ Heat-pump air conditioners heat your entire room by
recirculating air throughout the room, with the result that
some time may be required after first starting the air con-
ditioner until the room is heated.
During Automatic Defrosting operation, the OPERATION
indicator lamp (red) will flash.
*When Indoor and Outdoor Temperature are High
*Low Ambient Cooling
ꢀ When both indoor and outdoor temperatures are high
during use of the heating mode, the outdoor unit’s fan
may stop at times.
ꢀ When the outdoor temperature drops, the outdoor unit’s
fans may switch to Low Speed.
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OPERATING TIPS
AUTO Restart
In Event of Power Interruption
ꢀ Should the power supply to the air conditioner be inter-
rupted by a power failure, the air conditioner will restart
automatically in the previously selected mode once the
power is restored.
ꢀ 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.
ꢀ Should a power failure occur during TIMER operation, the
timer will be reset and the unit will begin (or stop) oper-
ating under the new timer setting. In this event, the TIMER
indicator lamp (green) will flash (see page. 4).
Multi-type Air conditioner
This indoor unit can be connected to a multi-type outdoor unit. The multi-type air conditioner allows multiple indoor units to
be operated in multiple locations. The indoor units may be operated simultaneously, in accordance with their respective
output.
Simultaneous Use of Multiple Units
❖
Instructions relating to inverter ( ) are applicable only to “INVERTER MODEL”.
❖ ꢀ Operation can be done in the following different operat-
ꢀ When using a multi-type air conditioner, the multiple
indoor units can be operated simultaneously, but when
two or more indoor units of the same group are oper-
ated simultaneously, the heating and cooling efficiency
will be less than when a single indoor unit is used alone.
Accordingly, when you wish to use more than one in-
door unit for cooling at the same time, the use should
be concentrated at night and other times when less out-
put is required. In the same way, when multiple units
are used simultaneously for heating, it is recommended
that they be used in conjunction with other auxiliary
space heaters, as required.
ing modes.
Cooling mode and dry mode
Cooling mode and fan mode
Dry mode and fan mode
❖ ꢀ The operating mode (heating mode or cooling (dry)
mode) of the outdoor unit will be determined by the op-
erating mode of the indoor unit that was operated first.
If the indoor unit was started in fan mode, the operating
mode of the outdoor unit will not be determined.
For example, if indoor unit (A) was started in fan mode
and then indoor unit (B) was then operated in heating
mode, indoor unit (A) would temporarily start opera-
tion in fan mode but when indoor unit (B) started oper-
ating in heating mode, the OPERATION indicator lamp
(red) for indoor unit (A) would begin to flash (1 second
on, 1 second off) and it would go into standby mode.
Indoor unit (B) would continue to operate in heating
mode.
ꢀ Seasonal and outdoor temperature conditions, the struc-
ture of the rooms and the number of persons present
may also result in differences of operating efficiency.
We recommend that you try various operating patterns
in order to confirm the level of heating and cooling out-
put provided by your units, and use the units in the way
that best matches your family's lifestyle.
ꢀ If you discover that one or more units delivers a low
level of cooling or heating during simultaneous opera-
tion, we recommend that you stop simultaneous opera-
tion of the multiple units.
❖ ꢀ Operation cannot be done in the following different op-
erating modes.
If the indoor unit is instructed to do an operating mode
that it cannot perform, the OPERATION indicator lamp
(red) on the indoor unit will flash (1 second on, 1 sec-
ond off) and the unit will go into the standby mode.
Heating mode and cooling mode (or dry mode)
Heating mode and fan mode
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OPERATING TIPS
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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