Fujitsu 9374379392-04 User Manual
Compact Cassette Type
PART NO.9374379392-04
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CONTENTS
SAFETY PRECAUTIONS ....................................... 1
FEATURES AND FUNCTIONS ...............................2
NAME OF PARTS .................................................. 3
PREPARATORY OPERATION ............................... 4
OPERATION ........................................................... 4
TIMER FUNCTIONS ..............................................6
ON/OFF TIMER ...................................................... 6
WEEKLY TIMER ..................................................... 7
TEMPERATURE SET BACK TIMER ...................... 9
ADJUSTING THE DIRECTION OF AIR CIRCULATION
SWING OPERATION ........................................... 10
ECONOMY OPERATION ......................................11
MANUAL AUTO OPERATION ................................11
CLEANING AND CARE .........................................11
TROUBLESHOOTING .........................................13
OPERATING TIPS ................................................ 14
SELF-DIAGNOSIS ...............................................16
SAFETY PRECAUTIONS
Before using the appliance, read these “SAFETY 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:
●
This mark indicates procedures which, if improperly performed, are most likely to
DANGER!
WARNING!
CAUTION!
DANGER!
CAUTION!
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result in the death 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 or service personnel.
This mark indicates procedures which, if improperly performed, might possibly re-
sult 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 installa-
●
tion of the air conditioner.
Do not become excessively chilled by staying for many hours in the direct cooling airfl ow
●
Do not insert fi ngers or objects into the outlet port or intake grilles.
●
Do not start and stop air conditioner operation by turning off the electrical breaker
●
Take care not to damage the power supply cable.
●
If the power supply cable of this appliance is damaged, it should only be replaced by the
●
authorized service personal, since special purpose tools and specifi ed cable are required.
In the event of a malfunction (burning smell, etc.), immediately stop operation, turn
●
off the electrical breaker, and consult authorized service personnel.
In the event of refrigerant leakage, be sure to keep away from fi re or any fl amma-
●
bles. (consult an authorized service personnel)
Provide occasional ventilation during use.
●
Do not direct airfl ow at fi replaces 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 fl ower vases or water containers on top of air conditioners.
●
Do not expose the air conditioner directly to water.
●
Do not operate the air conditioner with wet hands.
●
Do not pull power supply cable.
●
Turn off power source when not using the unit for extended periods.
●
Always turn off the electrical breaker whenever cleaning the air conditioner or changing the air fi lter.
●
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 airfl ow.
●
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, preci-
●
sion equipment, or art works.
Do not apply any heavy pressure to radiator fi ns.
●
Operate only with air fi lters installed.
●
Do not block or cover the intake grille and outlet port.
●
Ensure that any electronic equipment is at least 40 in (1m) away from either the in-
●
door or outdoor units.
Avoid installing the air conditioner near a fi replace or other heating apparatus.
●
When installing the indoor and outdoor units, take precautions to prevent access by infants
●
Do not use infl ammable gases near the air conditioner.
●
Install the drain hose so that it drains water properly.
●
This appliance is not intended for use by persons (including children) with reduced
●
physical, sensory or mental capabilities, or lack of experience and knowledge, unless they have been given supervision or instruction concerning use of the appliance by a person responsible for their safety. Children should be supervised to ensure that they do not play with the appliance.
...10
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.
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FEATURES AND FUNCTIONS
Energy saving and
Comfortable function
Clean function
REMOVABLE INTAKE GRILLE
INVERTER
At the start of operation, large amount of power is used to
bring the room quickly to the desired temperature. Afterwards,
the unit automatically switches to a low power setting for economic and comfortable operation.
ECONOMY OPERATION
When ECONOMY operation mode is operated, the room temperature will be little higher than the set-temp under cooling
mode and lower than set-temp under heating mode. Therefore,
the ECONOMY mode is able to save more energy than other
normal mode.
SWING OPERATION
The Airfl ow Direction Louvers swings automatically up and
down so that the air speeds to every nook and corner of your
room.
SUPER QUIET OPERATION
When the FAN button is used to select QUIET, the indoor
unit begins super-quiet operation; the indoor unit’s airfl ow is
reduced to produce quieter operation.
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.
Remote controller
WIRED REMOTE CONTROLLER
The wired remote controller allows convenient control of indoor
unit operation.
WIRELESS REMOTE CONTROLLER (OPTION)
The optional wireless remote controller can be used.
When you use remote controller, there are following
different points as compared with using wired remote
controller.
[ The additional function for wireless ones ]
• SLEEP
• TIMER
• MINIMUM HEAT
AUTO CHANGEOVER
The operation mode (cooling, dry, heating) is switched automatically to maintain the set temperature, and the temperature
is kept constant at all times.
Convenient function
WEEKLY TIMER
Use this timer function to set operating times for each day of
the week. Use the DAY OFF setting to switch off timed operation for a selected day in the coming week. Because all days
can be set together, the weekly timer can be used to repeat
the timer settings for all of the days.
TEMPERATURE SET BACK TIMER
Use this timer function to change the set temperature in the
operation times set for each day of the week. This can be used
together with other timer settings.
And you can use both wireless and wired remote
controller simultaneously. (But function is limited.)
[ The restricted functions for wired ones ]
• Weekly timer
• Temperature set back timer
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NAME OF PARTS
WIRED TYPE
Air Filter (In Air Intake Grille)
1
Airfl ow Direction Flaps
2
Air Intake Grille
3
Remote Controller (Wired)
4
Control Panel
5
Remote Control Signal Receiver
6
MANUAL AUTO Button
7
●
When the MANUAL AUTO button is
pressed in for more than 10 seconds, the
forced cooling operation will start.
●
The forced cooling operation is used
at the time of installation.
Only for authorized service personnel's use
●
When the forced cooling operation starts
by any chance, press the START/STOP
button to stop the operation
●
Please press the button at FILTER
INDICATOR RESET.
OPERATION Indicator Lamp (Green)
8
TIMER Indicator Lamp (Orange)
9
●
TIMER Indicator lamp lights when the
timer is set from wireless remote control.
ECONOMY Indicator Lamp (Green)
0
●
ECONOMY indicator lamp lights when
ECONOMY OPERATION and MINIMUM
HEAT OPERATION is operating.
.
.
Remote controller
F
2
6
7
8
9
0
A
START/STOP Button
1
SET TEMP. (Temperature) Button
2
MODE Button
3
FAN Button
4
ECONOMY Button
5
TIMER MODE (CLOCK ADJUST) Button
6
DAY (DAY OFF) Button
7
SET BACK Button
8
SET TIME ( < > ) Button
9
TIMER DELETE Button
0
TIMER SET Button
A
Vertical Airfl ow Direction and Swing Button
B
Horizontal Airflow Direction and Swing
C
Button (This function cannot be used)
MAINTENANCE (FILTER RESET) Button
D
I
H
G
J
K
E
1
3
4
C
B
5
D
Operation Lamp
E
Timer and Clock Display
F
Operation Mode Display
G
Fan Speed Display
H
Operation Lock Display
I
Temperature Display
J
Function Display
K
Defrost Display
Thermo Sensor Display
ECONOMY Display
Vertical Swing Display
Filter Display
#
1: Can be used if set correctly during installation.
#1
Please consult authorized serviceman when
using this function.
#1
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PREPARATORY OPERATION
SU MO TU WE TH FR SA
Set the current day and time
1
Press the TIMER MODE (CLOCK
ADJUST) button for 2 seconds
or more. The time display on the
remote controller will fl ash.
3
3
SET BACK
4
SUMOTUWETH FR
2
Press the SET TIME ( < > ) buttons to set the current time.
Press repeatedly to adjust the current time in
1-minute increments. Press and hold to adjust the current
time in 10-minute increments
SUMOTUWETH FR
ex. Monday PM 11:00
Press the SET BACK button to switch between the
12- and 24-hour time displays.
SA
.
SA
Press the DAY button and select the current day.
appears around the selected day.
A
SUMOTUWETH FR
SA
5
Press again to end.
OPERATION
Instructions relating to heating are applicable only to “HEAT & COOL MODEL” (Reverse Cycle).
To start/stop operation
Press the START/STOP button.
Operation lamp
Air conditioner ON: Lit brightly
Air conditioner OFF: Not lit
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OPERATION
To set the operation mode
Operation mode setting
●
Room temperature setting
●
Lower Rise
Fan speed setting
●
Press the MODE button to set the operation mode.
If DRY is selected, the fan speed will be set to AUTO.
AUTO COOL DRY HEATFAN
Press the SET TEMP. buttons to set the room temperature.
Temperature setting range
AUTO ................................................ 64 to 88 °F
COOL/DRY ....................................... 64 to 88 °F
HEAT ................................................ 60 to 88 °F
Press the FAN button to set the fan speed.
AUTO MEDHIGH LOW QUIET
ECONOMY OPERATION
Press the ECONOMY button to start or stop ECONOMY OPERATION.
For details on the function, refer to page 11.
Room temperature sensor selection
This function is locked at the factory. In order to detect the room temperature correctly, consult author-
●
ized service personnel when using this function.
Indoor unit
Press the ECONOMY button for more than 2 seconds to select whether the room temperature is detected at the indoor
unit or the remote controller.
When the thermo sensor display appears, the room
temperature is detected at the remote controller.
NOTES
• If this function is locked, the location where the room temperature is detected cannot be changed and the mark
fl ashes when the ECONOMY button is pushed for 2 seconds or more.
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OPERATION
Part lock function
Press the DAY (DAY OFF) button and TIMER SET button simultaneously for 2 seconds or more to activate the
part lock function and lock all of the buttons on the remote
controller except the START/STOP button, SET TEMP.
buttons, MODE button, and FAN button. Press the buttons
again for 2 seconds or more to deactivate the part lock
function.
When the part lock function is activated, the mark
appears. If any button is pressed during the part lock, the
PL
TIMER FUNCTIONS
OFF timer (See page 6.)
Use this timer function to stop air conditioner operation. The timer operates and air conditioner operation stops after
the set time has passed. The timer can be set up to 24 hours in advance.
ON timer (See page 6.)
Use this timer function to start air conditioner operation. The timer operates and air condition operation starts after the
set time has passed. The timer can be set up to 24 hours in advance.
WEEKLY timer (See page 7.)
Use this timer function to set operating times for each day of the week.
Use the DAY OFF setting to switch off timed operation for a selected day in the coming week.
Because all days can be set together, the weekly timer can be used to repeat the timer settings for all of the days.
display fl ashes.
Temperature SET BACK timer (See page 9.)
Use this timer function to change the set temperature in the operation times set for each day of the week.
This can be used together with other timer settings.
ON/OFF TIMER
To set the ON/OFF timer
1
To cancel
●
No display
NON
STOP
Press the TIMER MODE button to
select the ON timer or OFF timer.
OFF
TIMER
• Press the TIMER DELETE button to cancel the timer mode.
• The timer mode can also be canceled by changing the timer mode using the TIMER MODE button.
ON
TIMER
WEEKLY
TIMER
SUMOTUWETH FR
SA
2
From 1 to 24 hours
Press the SET TIME ( < > ) buttons to set the time.
After the time is set, the timer will start automatically.
The amount of time until the OFF timer operates that is displayed on the timer display decreases as time passes.
ex. OFF timer set for 6 hours
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WEEKLY TIMER
ON-1 OFF-1 ON-2 OFF-2
Weekly timer setting
1
Press the TIMER MODE button to select the weekly timer.
Day of the week setting
●
3
1
Press the DAY button to select the day of the week, and then press the
TIMER SET button to confi rm the setting.
For ALL, all of the days can be set together when a appears around
each day.
Time setting
●
2
SUMOTUWETH FR
369
SA
12 15 18 21
ALL SU MO TU WE TH FR SA
4
1
2
3
2
Press the TIMER SET button for
2 seconds or more.
SUMOTUWETH FR
369
When the operating time is set, the
mark appears.
SUMOTUWETH FR
SA
12 15 18 21
SA
369
12 15 18 21
ex. The timer is set for 7:00-18:00.
Press the SET TIME ( < > ) buttons to set the time, and then press the
TIMER SET button to confi rm the setting and proceed to the next ON or OFF
time setting.
Up to 2 times ON and OFF times can be set per day.
Press the DAY button to complete the time setting and return to the day of
the week setting.
To delete the operating time
●
5
Repeat steps 3 and 4.
To complete the weekly timer settings, press the TIMER
SET button for 2 seconds or more.
NOTES
• The operating time can be set in 30-minute increments only.
• The OFF time can be carried over to the next day.
•
The ON timer and the OFF timer functions cannot be set using the weekly timer. Both an ON and OFF time must be set
If the TIMER DELETE button is pressed
during steps
the selected day will be deleted.
If all the days are selected, the operating
times for all of the days will be deleted.
or 4, the operating time for
3
.
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ON OFF ON OFF
DAY OFF
WEEKLY WEEKLY
WEEKLY
WEEKLY
ON
OFF
ON
OFF
DAY OFF
WEEKLY TIMER
WEEKLY timer operation
To start
●
SUMOTUWETH FR
369
12 15 18 21
To cancel
●
SA
When the weekly timer is selected,
the timer starts automatically.
To set the DAY OFF (for a holiday)
1
During the weekly timer, press
the TIMER SET button for 2
seconds or more to set the
day.
SUMOTUWETH FR
369
12 15 18 21
2
Select the day to set the DAY
OFF
.
SA
369
ex. Operating time 7:00-18:00
The operating time for the current
day is displayed.
12 15 18 21
3
Press the DAY (DAY OFF)
button for 2 seconds or more
to set the DAY OFF.
SUMOTUWETH FR
369
ex. The DAY OFF is set for Monday.
SA
12 15 18 21
•
Press the TIMER DELETE button to
cancel the timer mode
• The timer mode can also be
canceled by changing the timer
mode using the TIMER MODE
button.
4
Press the TIMER SET button
for 2 seconds or more to complete the DAY OFF setting
mark fl ashes under a day of the week.
The
To cancel
●
Follow the same procedures as those
for setup.
.
.
NOTES
• The DAY OFF setting is only available for days for which weekly settings already exist.
• If the operating time carries over to the next day (during a next day setting), the effective DAY OFF range will be set as shown
below.
Normal
●
Setting dayPreceding day Next day
• The DAY OFF setting can only be set 1 time. The DAY OFF setting is cancelled automatically after the set day has passed.
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Next day setting
●
Setting dayPreceding day Next day
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TEMPERATURE SET BACK TIMER
Temperature SET BACK timer setting
SET BACK
SUMOTUWETH FR
1
369
Press the SET BACK button to change to the SET BACK confi rmation display.
The SET BACK operating time and the set temperature will be
displayed.
Day setting
●
SA
12 15 18 21
Operating time setting
●
If there is no existing
SET BACK temperature setting, “- -” will
be displayed for the
temperature.
SUMOTUWETH FR
2
Press the TIMER SET button
for 2 seconds or more.
SA
3
369
12 15 18 21
1
Follow the same procedures to set the operating time as those for the weekly timer. The TIMER DELETE button is also
used as described in the procedures for the weekly timer.
Temperature setting
●
4
2
Press the SET TEMP. buttons to set the
temperature. (The temperature setting
range is the same as the range for the operation mode.)
SUMOTUWETH FR
3
SA
4
ex. When setting all days together
5
369
12 15 18 21
Repeat steps 3 and 4.
Press the TIMER SET button for
2 seconds or more to complete
the temperature SET BACK timer
settings.
SET BACK temperature
Normal temperature
ex. Operating time 15:00–22:00
ON
76°F
84°F
OFF
76°F
Temperature SET BACK timer operation
To cancel
To start
●
SET BACK
ex. Display during SET BACK timer operation
(The operating time will not be displayed.)
Press the SET BACK button. The SET BACK confi rmation display appears for
5 seconds, and then the timer starts automatically.
NOTES
• The SET BACK timer only changes the set temperature, it cannot be used to start or stop air conditioner operation.
• The SET BACK timer can be set to operate up to 2 times per day but only 1 temperature setting can be used.
• The SET BACK timer can be used together with the ON, OFF, and weekly timer functions.
•
The SET BACK operating time is displayed only in the SET BACK confi rmation display. (Refer to step 1 for the SET BACK confi r-
mation display.)
SUMOTUWETH FR
SA
●
1
Press the SET BACK button, and then
press the TIMER DELETE button while
the SET BACK confirmation display is
displayed. Even if the SET BACK button
is pressed again, the SET BACK timer
will be cancelled
.
2
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ADJUSTING THE DIRECTION OF AIR CIRCULATION
Instructions relating to heating (*) are applicable only to “HEAT & COOL MODEL” (Reverse Cycle).
Start air conditioner operation before performing this procedure.
To set the operation mode
Vertical air direction adjustment
●
* Press the START/STOP button to start the air conditioner, and then
proceed as follows.
Press the VERTICAL AIRFLOW DIRECTION and SWING button to adjust the
direction of the vertical airfl ow.
Each time the button is pressed, the air direction range will change as follows:
2 3
1
4
The remote controller’s display does not change.
Airfl ow Direction Setting:
1, 2, 3, 4
Dry mode
The vertical airfl ow direction is set automatically as shown, in accordance with the
●
type of operation selected
During Cooling/Dry mode : Horizontal fl ow
* During Heating mode : Downward fl ow
During AUTO mode operation, for the fi rst minute after beginning operation, air-
●
fl ow will be horizontal 1; the air direction cannot be adjusted during this period.
Horizontal air direction adjustment.
●
The function cannot be used.
: During Cooling/Heating/
.
1
4
SWING OPERATION
Attempting to move up/down air di-
●
rection flaps manually could result
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,
●
children, elderly or sick persons, the air
direction and room temperature should
be considered carefully when making
settings
.
Begin air conditioner operation before performing this procedure.
To select/stop swing operation
Press the VERTICAL AIRFLOW DIRECTION and SWING button for more
than 2 seconds. (Stop the setting by pressing for more than 2 seconds again.)
About Swing Operation
The SWING operation may stop temporarily when the air
The type of operation
Cooling/Heating/Dry/Fan
Range of swing
to
1
4
●
conditioner’s fan is not operating, or when operating at very
low speeds.
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ECONOMY OPERATION
Begin Air Conditioner operation before performing this procedure.
To Use the ECONOMY Operation
Press the ECONOMY button.
The ECONOMY Indicator Lamp (green) will light.
ECONOMY operation begins.
To Stop the ECONOMY Operation
Press the ECONOMY button again.
The ECONOMY Indicator Lamp (green) will go out.
Normal operation begins.
About ECONOMY Operation
At the maximum output, ECONOMY Operation is approximately 70% of normal air conditioner operation for cooling and
heating.
If the room is not cooled (or heated) well during ECONOMY operation, select normal operation.
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.
When ECONOMY operation mode is operated, the room temperature will be little higher than the set-temp under cooling
mode and lower than set-temp under heating mode. Therefore, the ECONOMY mode is able to save more energy than other
normal mode.
In case of multi-type air conditioner, the ECONOMY operation mode is only available for the set indoor unit.
Indicator Lamp
:Lighting
:OFF
MANUAL AUTO OPERATION
Use the MANUAL AUTO operation in the event the Remote Controller is lost or otherwise unavailable.
How To Use the Main Unit Controls
Press the MANUAL AUTO button more than
3 seconds and less than 10 seconds 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 MANUAL AUTO
button, it will operate under the same
mode as the AUTO mode selected on
the Remote Controller.
The fan speed selected will be “AUTO”
●
and the thermostat setting will be standard.(76
)
°F
CLEANING AND CARE
Before cleaning the unit, be sure to stop the unit and disconnect the power supply.
CAUTION!
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 ben-
●
zene or thinner.
Do not expose the unit body to liquid insecticides or hairsprays.
●
If the unit will not be operated for a period of 1 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.
●
Turn off the electrical breaker.
●
A fan operates at high speed inside the unit, and personal injury could result.
●
Be careful not to drop the intake grille.
●
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CLEANING AND CARE
Cleaning the Air Filter
1. Push the intake grille’s hooks inward towards the
center of the unit to open the intake grille.
Grille Hook
2. Pull out the fi lter from the intake grille.
4. Re-attach the air fi lters to the intake grille.
Replace the air fi lter into its holder.
1
Make sure that the air fi lter makes contact with the fi lter
2
stopper when it is replaced into its holder.
Air Filter
Filter Hook
Intake Grille
5.
Close the intake grille and push the intake grille’s
hooks outward
.
Dust can be cleaned from the air fi lter either with a vac-
●
uum cleaner, or by washing the fi lter in a solution of mild
Air Filter
3. Clean the air fi lter.
Remove the dust from the air filters by vacuuming or
washing them. After washing, allow the air fi lters to dry
thoroughly in an area protected from sunlight.
detergent and warm water. If you wash the fi lter, be sure
to allow it to dry thoroughly in a shady place before reinstalling.
If dirt is allowed to accumulate on the air fi lter, airfl ow will
●
be reduced, lowering operating effi ciency and increasing
noise.
Filter Indicator Reset (A special setting)
Can be used if set correctly during installation.
●
Please consult authorized serviceman when using this function.
It lights on when it is time to clean the air
fi lters.
After turning the power on,
press the MAINTENANCE button for
2 seconds or more on the remote control, or
press the MANUAL AUTO button
for 2 seconds or less on the indoor unit.
Grille Hook
:Flashing
:OFF
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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:
Smells:
Mist or steam are
emitted:
Airfl ow is weak or stops: *● When Heating operation is started, fan speed is temporarily very
Water is produced from
the outdoor unit:
The ECONOMY Indicator fl ashes
on the remote controller
is fl ashing:
In the event of a malfunction (burning smell, etc.), immediately stop operation, turn off the electrical
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 turn off the electrical breaker to ensure that power is completely off.
Symptom Problem
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 electrical breaker is turned off then on again, 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 fl owing 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 fl owing).
During operation, a slight squeaking sound may be heard. This is
●
the result of minute expansion and contraction of the front panel
due to temperature changes.
*
During Heating operation, a sizzling sound may be heard occasion-
●
ally. This sound is produced by the Automatic Defrosting operation
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 indoor unit.
During Cooling or Dry operation, a thin mist may be seen emit-
●
ted from the indoor unit. This results from the sudden Cooling of
room air by the air emitted from the indoor unit, 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.
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,
will be shown on the remote controller display.
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.
In case of Multi-type unit, if multiple units are operated in differ-
●
ent operation modes as shown below, the units operated afterward will stop and the OPERATION indicator lamp (green) will
thermo sensor display
fl ash,
Heating mode and cooling mode (or dry mode)
Heating mode and fan mode
*● During Heating operation, water may be produced from the out-
door unit due to the Automatic Defrosting operation.
Clean the fi lter. Afterwards, turn the ECONOMY Indicator off. 12
●
The room temperature sensor may be malfunctioning. Please con-
●
sult authorized service personnel. —
will be shown on the remote controller display.
See
Page
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TROUBLESHOOTING
Instructions relating to heating (*) are applicable only to “HEAT & COOL MODEL” (Reverse Cycle).
Symptom Items to check
CHECK ONCE
MORE
If the problem persists after performing these checks, or if you notice burning smells, stop operation immediately, turn off electric
breaker, and consult with authorized service personnel.
Doesn’t operate at all:
Poor Cooling (or *Heating)
performance:
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 fi lter dirty?
●
Are the air conditioner’s intake grille or outlet port blocked?
●
Did you adjust the room temperature settings (thermostat) correctly
●
Is there a window or door open?
●
In the case of Cooling operation, is a window allowing bright sunlight
●
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? —
●
See Page
—
6 to 8
?
—
?
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 insuffi cient heating perform-
ance is being produced, we recommend you use this air conditioner in conjunction with another type 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 fi rst 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.
●
*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 Defrost-
ing function. During the defrost cycle, the indoor fan will shutdown and
take anywhere from 4 to 15 minutes before the air conditioner starts up again.
After heating operation stops, if frost forms on the outdoor unit, the unit will start Automatic Defrosting operation.
●
At this time, the outdoor unit will automatically stop after operating for a few minutes.
will be displayed on the remote controller. It will
Low Ambient Cooling
When the outdoor temperature drops, the outdoor unit’s fans may switch to Low Speed, or 1 of the fans may stop intermittently.
●
Dual Remote Controllers (optional)
An additional remote controller can be added up to the maximum of 2 remote controllers. Either remote controller can control the
air conditioner. However, the timer functions cannot be used at the secondary unit.
Group Control
1 remote controller can control up to 16 air conditioners.
All of the air conditioners will be operated with the same settings.
Group control cannot be used when using it by the multi type.
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OPERATING TIPS
Mode operation: AUTO
COOLING MODEL
When the room temperature is 4 °F higher than the set
●
temperature, the mode will switch between Cooling and
Drying.
HEAT & COOL MODEL (Reverse Cycle)
Auto changeover function
When AUTO CHANGEOVER is selected, the air condi-
●
tioner selects the appropriate operation mode (Cooling
or Heating) according to your room’s present temperature.
When AUTO CHANGEOVER is fi rst selected, the fan will
●
operate at a very low speed for about a few minutes while
the unit determines the current conditions of the room and
selects the proper operation mode.
If the difference between thermostat setting and actual
room temperature is more than +4 °F
→ Cooling operation
If the difference between thermostat setting and actual
room temperature is within ±4 °F
Determined by outdoor temperature
→
If the difference between thermostat setting and actual
room temperature is more than –4 °F
Heating operation
→
During the Drying mode operation, the FAN setting should
●
be switched to LOW for a gently cooling effect during which
the fan may temporarily stop rotating.
When the room temperature is near the thermostat setting,
●
the air conditioner will begin monitor operation. In the monitor
operation mode, the fan will operate at a very low speed. If
the room temperature subsequently changes, the air conditioner will once again select the appropriate operation (Heating
or Cooling) to adjust the temperature to the value set in the
thermostat.
About Mode Operation
Heating:
Cooling:
Dry:
Fan:
● 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, and the heat operation will be interrupted.
After the start of heating operation, it takes sometime before the room gets
●
warmer
.
● Use to cool your room.
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 se-
●
lected.
Use to circulate the air throughout your room.
●
AUTO Restart
In Event of Power Interruption
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.
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, reconnect it, and then use
the remote controller to resume operation.
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