Page 1
KEEP THIS OPERATION MANUAL FOR FUTURE REFERENCE
FUJITSU GENERAL LIMITED
PART NO. 9378589063
Indoor Unit
AUTG54LR
AIR CONDITIONER
Cassette Type
OPERATING MANUAL
Page 2
2
CONTENTS
SAFETY PRECAUTIONS
● Do not attempt to install this air conditioner by yourself.
●
This unit contains no user-serviceable parts. Always consult authorized service personnel for repairs.
● When moving, consult authorized service personnel for disconnection and installation
of the air conditioner.
●
Do not become excessively chilled by staying for many hours in the direct cooling airow.
● Do not insert ngers 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.
●
In the event of refrigerant leakage , be sure to keep away from re or any ammables
.
(consult an authorized service personnel)
● Provide occasional ventilation during use.
● Do not direct air ow at 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 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 touch the switches with sharp objects.
● 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 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 air 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, precision
equipment, or art works.
● Do not apply any heavy pressure to radiator ns.
● Operate only with air lters installed.
● Do not block or cover the intake grille and outlet port.
●
Ensure that any electronic equipment is at least 1m away from either the indoor or outdoor units.
● Avoid installing the air conditioner near a replace or other heating apparatus.
●
When installing the indoor and outdoor units, take precautions to prevent access by infants
.
● Do not use in ammable gases near the air conditioner.
●
Install the drain hose so that it drains water properly.
●
Ensure that any electronic equipment is at least 1m away from either the indoor or outdoor units.
● Avoid installing the air conditioner near a replace or other heating apparatus.
●
When installing the indoor and outdoor units, take precautions to prevent access by infants
.
● Do not use in ammable gases near the air conditioner.
● 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:
DANGER
This mark indicates procedures which, if improperly performed, are most likely to
result in the death or serious injury to the user or service personnel.
WARNING
This mark indicates procedures which, if improperly performed, might lead to the
death or serious injury of the user or service personnel.
CAUTION
This mark indicates procedures which, if improperly performed, might possibly result
in personal harm to the user, or damage to property.
DANGER
CAUTION
SAFETY PRECAUTIONS .................................................... 2
FEATURES AND FUNCTIONS ............................................ 3
NAME OF PARTS ................................................................ 4
PREPARATORY OPERATION ............................................. 6
OPERATION ........................................................................ 7
TIMER FUNCTIONS ............................................................ 9
ON/OFF TIMER ................................................................... 9
WEEKLY TIMER ................................................................ 10
TEMPERATURE SET BACK TIMER ................................. 12
ADJUSTING THE DIRECTION OF AIR CIRCULATION .... 13
SWING OPERATION ......................................................... 14
ECONOMY OPERATION ................................................... 14
CLEANING AND CARE ..................................................... 15
TROUBLESHOOTING ....................................................... 16
OPERATING TIPS ............................................................. 17
SELF-DIAGNOSIS ............................................................. 19
TEMPERATURE AND HUMIDITY RANGE ........................ 19
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3
SAFETY PRECAUTIONS
FEATURES AND FUNCTIONS
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.
SUPER QUIET OPERATION
When the FAN button is used to select QUIET, the indoor
unit begins super quiet operation; the indoor unit’s air ow is
reduced to produce quieter operation.
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.
REMOVABLE INTAKE GRILLE
The indoor unit’s intake grille can be removed for easy
cleaning and maintenance.
MILDEW-RESISTANT FILTER
The air lter 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
•
TIMER
•
10 °C HEAT operation
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
■
Energy saving and Comfortable function
■
Clean function
● 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.
● If you see lightning or hear thunder, there might be a lightning strike. To prevent electric
shock hazard, turn off the air conditioner by using the remote controller, and do not
touch the unit or the power plug during thunderstorm.
● Do not place any other electrical products or household belongings under indoor unit or
outdoor unit. Dripping condensation from the unit might get them wet, and may cause
damage or malfunction of your property.
●
Keep clean and tidy around the outdoor unit, and do not place the things around it. If it is
covered with fallen leaves, there could be an in ltration of small animals or insects whose
contact with the internal electrical components leads to the product malfunction
.
● Do not stand on unstable steps when operating or cleaning the air conditioner. It may
overturn and can cause the injury.
CAUTION
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4
NAME OF PARTS
1 Air lter (in air intake grille)
2 Air ow direction aps
3 Air intake grille
4 Remote controller (wired)
5 Control panel (OPTION)
6 Remote control signal receiver
7 MANUAL AUTO button
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 Reset.
8 OPERATION indicator lamp
(green)
9 TIMER indicator lamp (orange)
TIMER Indicator lamp lights when the
timer is set from wireless remote controller.
0 ECONOMY indicator lamp
(green)
ECONOMY indicator lamp lights in fol-
lowing operations:
• ECONOMY operation
•
10 °C HEAT operation (controlled by
wireless remote controller)
A Remote controller (wireless)
A
7
6
8
9
0
(OPTION)
Either the wireless or wired remote controller can be selected.
5
Indoor unit
3
1
5
2
WIRED TYPE
4
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5
NAME OF PARTS
Remote controller
1
START/STOP button
2
SET TEMP. (temperature) button
3
MODE button
4
FAN button
5
ECONOMY button
6
TIMER MODE (CLOCK ADJUST) button
7
DAY (DAY OFF) button
8
SET BACK button
9
SET TIME ( < > ) button
0
TIMER DELETE button
A
TIMER SET button
B
Vertical air ow direction and Swing
button
C
Horizontal air ow direction and Swing
button
*1
D
MAINTENANCE (FILTER RESET) button
#1
E
Operation lamp
F
Timer and Clock indicator
G
Operation mode indicator
H
Fan speed indicator
I
Operation lock indicator
J
Temperature indicator
K
Function indicator
Defrost indicator
Thermo sensor indicator
ECONOMY indicator
Vertical swing indicator
Filter indicator
#1
*1 This function cannot be used.
(Please also see the operating manual of the option when using it with options, etc.)
#1 Can be used if set correctly during
installation. Please consult authorized service
personnel when using this function.
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PREPARATORY OPERATION
Press the TIMER MODE (CLOCK
ADJUST) button for 2 seconds or
more. The time indicator on the
remote controller will ash.
2
SU MO TU WE TH FR SA
Press the DAY button and select the current day.
A
appears around the selected day.
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.
ex. Monday PM11:00
Press again to end.
SUMOTUWETH FR
SA
1
3
5
Press the SET BACK button to switch between the
12- and 24-hour time displays.
3
4
SUMOTUWETH FR
SA
SUMOTUWETH FR
SA
SET BACK
Set the current day and time
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OPERATION
Temperature setting range
AUTO ............................................... 18 to 30 °C
COOL/DRY ...................................... 18 to 30 °C
HEAT * ............................................. 16 to 30 °C
Lower Rise
Operation lamp
Air conditioner ON: Lit brightly
Air conditioner OFF: Not lit
Press the START/STOP button.
Press the MODE button to set the operation mode.
If DRY is selected, the fan speed will be set to AUTO.
Press the SET TEMP. buttons to set the room temperature.
Press the FAN button to set the fan speed.
Press the ECONOMY button to start or stop ECONOMY
operation.
For details on the function, refer to page 14.
To start/stop operation
To set the operation mode
●
Operation mode setting
●
Room temperature setting
●
Fan speed setting
ECONOMY operation
Instructions relating to heating (*) are applicable only to “HEAT & COOL MODEL” (Reverse Cycle).
AUTO
COOL
DRY
HEAT *
FAN
AUTO
HIGH
MED
LOW
QUIET
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8
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 indicator 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 ashes
when the ECONOMY button is pushed for 2 seconds or more.
Indoor unit
Room temperature sensor selection
OPERATION
Child lock function
Press the DAY (DAY OFF) button and TIMER SET button simultaneously for 2 seconds or more to activate the child 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 child lock function.
When the child lock function is activated, the
mark ap-
pears. If any button is pressed during the child lock, the
CL
indicator ashes.
•
This function is locked at the factory. In order to detect the room temperature correctly, consult authorized ser-
vice personnel when using this function.
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9
To set the ON/OFF timer
TIMER FUNCTIONS
ON/OFF TIMER
Press the TIMER MODE button to
select the ON timer or OFF timer.
2
• 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
.
1
SUMOTUWETH FR
SA
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 indicator decreases as time passes.
From 1 to 24 hours
ex. OFF timer set for 6 hours
●
To cancel
OFF timer (See page 9.)
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 9.)
Use this timer function to start air conditioner operation. The timer operates and air conditioner operation starts after the
set time has passed. The timer can be set up to 24 hours in advance.
WEEKLY timer (See page 10.)
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 (See page 12.)
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.
NON
STOP
OFF
TIMER
ON
TIMER
WEEKLY
TIMER
No indicator
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10
WEEKLY TIMER
Press the TIMER MODE button to select the weekly timer.
2
Press the TIMER SET button for
2 seconds or more.
1
3
● Day of the week setting
Press the DAY button to select the day of the week, and then press the TIMER
SET button to con rm the setting.
For ALL, all of the days can be set together when a appears around
each day.
ALL SU MO TU WE TH FR SA
4
● Time setting
Press the SET TIME (< >) buttons to set the time, and then press the TIMER SET
button to con 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.
When the operating time is set, the
mark appears.
5
Repeat steps 3 and 4.
To complete the weekly timer settings, press the TIMER
SET button for 2 seconds or more.
● To delete the operating time
If the TIMER DELETE button is pressed dur-
ing steps
3 or 4, the operating time for the
selected day will be deleted.
If all the days are selected, the operating
times for all of the days will be deleted.
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.
ON-1 OFF-1 ON-2 OFF-2
ex. The timer is set for 7:00-18:00.
1
2
1
2
3
Weekly timer setting
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11
SUMOTUWETH FR
SA
369
12 15 18 21
SUMOTUWETH FR
SA
369
12 15 18 21
WEEKLY TIMER
●
To start
When the weekly timer is selected, the
timer starts automatically.
The operating time for the current day
is displayed.
●
To cancel
• 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.
1
During the weekly timer, press
the TIMER SET button for 2
seconds or more to set the
day.
Select the day to set the DAY
OFF.
Press the DAY (DAY OFF)
button for 2 seconds or more
to set the DAY OFF.
Press the TIMER SET button
for 2 seconds or more to complete the DAY OFF setting.
243
●
To cancel
Follow the same procedures as those
for setup.
ex. The DAY OFF is set for Monday.
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
●
Next day setting
Setting dayPreceding day Next day 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.
The
mark ashes under a day of the week.
ON OFF ON OFF
DAY OFF
WEEKLY WEEKLY
WEEKLY
WEEKLY
ON
OFF
ON
OFF
DAY OFF
ex. Operating time 7:00-18:00
WEEKLY timer operation
To set the DAY OFF (for a holiday)
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12
TEMPERATURE SET BACK TIMER
Press the SET BACK button to change to the SET BACK con rmation display.
The SET BACK operating time and the set temperature will be
displayed.
2
Press the TIMER SET button
for 2 seconds or more.
1
3
●
Day setting
●
Operating time setting
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.
4
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 con rmation display. (Refer to step 1 for the SET BACK
con rmation display.)
SET BACK
ex. When setting all days together
●
Temperature setting
Press the SET TEMP. buttons to set the
temperature. (The temperature setting range
is the same as the range for the operation
mode.)
ex. Operating time 15:00–22:00
5
Repeat steps 3 and 4.
Press the TIMER SET button for
2 seconds or more to complete
the temperature SET BACK timer
settings.
24°C
24°C
28°C
SET BACK temperature
Normal temperature
●
To start
SET BACK
Press the SET BACK button. The SET BACK con rmation display appears for
5 seconds, and then the timer starts automatically.
ex. Display during SET BACK timer operation
(The operating time will not be displayed.)
●
To cancel
Press the SET BACK button, and then
press the TIMER DELETE button while
the SET BACK con rmation display is
displayed. Even if the SET BACK button
is pressed again, the SET BACK timer
will be cancelled.
If there is no existing
SET BACK temperature setting, “- -” will
be displayed for the
temperature.
1
3
2
4
1
2
Temperature SET BACK timer setting
Temperature SET BACK timer operation
ON OFF
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13
ADJUSTING THE DIRECTION OF AIR CIRCULATION
Press the START/STOP button to start the air conditioner, and then proceed as follows.
Press the vertical air ow direction and swing button to adjust the direction of
the vertical air ow.
To set the operation mode
●
Vertical air direction adjustment
Recommended air ow direction setting:
1, 2, 3, 4: During cooling/dry mode
2, 3, 4: During heating mode
● The vertical air ow direction is set automatically as shown, in accordance with the
type of operation selected.
During cooling/dry mode : Horizontal ow 1
During heating mode* : Downward ow 4
● During AUTO mode operation, for the rst minute after beginning operation, air ow
will be horizontal 1; the air direction cannot be adjusted during this period.
● Horizontal air direction adjustment.
The function cannot be used.
● Attempting to move up/down air direc-
tion aps 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.
Each time the button is pressed, the air direction range will change as follows:
1
2 3 4
The remote controller display does not change.
Instructions relating to heating (*) are applicable only to “HEAT & COOL MODEL” (Reverse Cycle).
Start air conditioner operation before performing this procedure.
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14
SWING OPERATION
Begin air conditioner operation before performing this procedure.
Press the vertical air ow direction and swing button for more than 2 seconds.
(Stop the setting by pressing for more than 2 seconds again.)
To select/stop swing operation
● The swing operation may stop temporarily when the air con-
ditioner’s fan is not operating, or when operating at very low
speeds.
About Swing Operation
Begin air conditioner operation before performing this procedure.
To Use the ECONOMY Operation
Press the ECONOMY button.
The ECONOMY indicator will light.
ECONOMY operation begins.
To Stop the ECONOMY Operation
Press the ECONOMY button again.
The ECONOMY indicator 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.
ECONOMY OPERATION
The type of operation Range of swing
Cooling/Heating/Dry/Fan
1 to 4
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CLEANING AND CARE
Cleaning the Air Filter
1. Push the intake grille’s hooks inward to-
wards the center of the unit to open the
intake grille.
2. Pull out the lter from the intake grille.
● Before cleaning the unit, be sure to stop the unit and 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.
● As the lter cleaning involves high-altitude operation, please consult the professional technical service
personnel.
● 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 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.
3. Clean the air lter.
Remove the dust from the air lters by vacuuming or washing
them. After washing, allow the air lters to dry thoroughly in
an area protected from sunlight.
4. Re-attach the air filters to the intake
grille.
1 Replace the air lter into its holder.
2 Make sure that the air lter makes contact with the lter
stopper when it is replaced into its holder.
5. Close the intake grille and push the intake
grille’s hooks outward.
● Dust can be cleaned from the air lter either with a vacuum
cleaner, or by washing the lter in a solution of mild detergent and warm water. If you wash the lter, be sure to allow
it to dry thoroughly in a shady place before reinstalling.
● If dirt is allowed to accumulate on the air lter, air ow will
be reduced, lowering operating ef ciency and increasing
noise.
CAUTION
●
Can be used if set correctly during installation. Please consult authorized service personnel when using this
function.
• It lights on when it is time to clean the air lters.
After turning the power on.
Press the MAINTENANCE button for
2 seconds or more on the remote control.
The lter indicator will disappear.
Filter indicator Reset (A special setting)
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16
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, 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.
Before requesting service, perform the following checks:
WARNING
Symptom Problem
See Page
NORMAL
FUNCTION
Does not operate immediately:
● 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.
—
Noise is heard:
● During operation and immediately after stopping the unit, the sound
of water 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 owing).
● 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
occasionally. This sound is produced by the automatic defrosting
operation.
17
Smells:
●
Some smell may be emitted from the indoor unit. This smell is the
result of room smells (furniture, tobacco, etc.) which have been
taken into the air conditioner.
—
Mist or steam are
emitted:
●
During cooling or dry operation, a thin mist may be seen emitted
from the indoor unit. This results from the sudden cooling of room air
by the air emitted from the air conditioner, resulting in condensation
and misting.
—
*
●
During heating operation, the outdoor unit’s fan may stop, and
steam may be seen rising from the unit. This is due to the automatic
defrosting operation.
17
Air ow 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 operation
(between 4 and 15 minutes) as the automatic defrosting mode operates. During the automatic defrosting operation,
will be shown
on the remote controller display.
17
● 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.
—
Water is produced from
the outdoor unit:
*
● During heating operation, water may be produced from the outdoor
unit due to the automatic defrosting operation.
17
The FILTER indicator
blinks:
● Clean the lter. Afterwards, turn the FILTER indicator off.
15
thermo sensor indicator
on the remote controller is
ashing:
● The room temperature sensor may be malfunctioning. Please consult
authorized service personnel.
—
Page 17
17
TROUBLESHOOTING
Instructions relating to heating (*) are applicable only to “HEAT & COOL MODEL” (Reverse Cycle).
OPERATING TIPS
Instructions relating to heating (*) are applicable only to “HEAT & COOL MODEL” (Reverse Cycle).
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. During the defrost cycle, the indoor fan will shutdown and
will be displayed on the remote controller. It will 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.
Low Ambient Cooling
When the outdoor temperature drops, the outdoor unit’s fans may switch
to low speed, or one of the fans may stop intermittently.
Hot Start*
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.
Dual Remote Controllers (optional)
An additional remote controller can be added up to the maximum of two
remote controllers. Either remote controller can control the air conditioner.
However, the timer functions cannot be used at the slave unit.
Group Control
One remote controller can control up to 16 air conditioners.
All of the air conditioners will be operated with the same settings.
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 insuf cient 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 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.
Fan speed: AUTO
Heating*: 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 set tempera-
ture, the fan speed becomes slower.
Fan: The fan runs at the low fan speed.
Symptom
Items to check
See Page
CHECK ONCE
MORE
Does not operate at all: ● 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? 9 to 11
Poor cooling (or heating*)
performance:
● Is the air lter 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 sunlight
to enter? (Close the curtains.)
● In the case of cooling operation, are there heating apparatus and com-
puters inside the room, or are there too many people in the room?
● Is the unit set for QUIET operation?
—
●
Is the unit set for QUIET operation? —
If the problem persists after performing these checks, or if you notice burning smells, stop operation immediately, disconnect the
power supply, and consult with authorized service personnel.
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18
OPERATING TIPS
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.
HEAT*: ● 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 heat operation will be interrupted.
● After the start of heating operation, it takes sometime before the room gets
warmer.
COOL:
● 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 se-
lected.
FAN:
● Use to circulate the air throughout your room.
Room temperature is higher than the de ned temperature in temperature
setting Cooling mode or dry mode
Room temperature is close to the de ned temperature in temperature set-
ting Determined by outdoor temperature
Room temperature is lower than the de ned temperature in temperature
setting Heating mode
Cooling or Dry
Heating
Determined by
outdoor temperature
Defi ned temperature in
temperature
setting
AUTO [in HEAT & COOL (Reverse Cycle) model]:
Instructions relating to heating (*) are applicable only to “HEAT & COOL MODEL” (Reverse Cycle).
● When AUTO (automatic changeover) is selected, the air conditioner selects the appropriate operation mode (cooling or
heating) according to your room’s present temperature.
● When AUTO (automatic changeover) operation rst selected, the fan will operate at low speed for about a few minute,
during which time the indoor unit detects the room conditions and selects the proper operation mode.
● When the air conditioner has adjusted your room’s temperature to near the thermostat setting, it will begin monitor opera-
tion. 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.
● If the mode automatically selected by the unit is not what you wish, select one of the mode operation (HEAT, COOL, DRY,
FAN).
AUTO (in COOLING model) :
● When AUTO (automatic changeover) operation rst selected, the fan will operate at very low speed for about a few minutes,
during which time the indoor unit detects the room conditions and selects the proper mode.
Room temperature is higher than the de ned temperature in temperature
setting Cooling mode or dry mode
Room temperature is close to or lower than the de ned temperature in
temperature setting Monitor operation
● When the indoor unit has adjusted your room’s temperature to near the temperature setting, it will begin monitor opera-
tion. In the monitor operation mode, the fan will operate at low speed. If the room temperature subsequently changes,
the indoor unit will once again select the appropriate operation (cooling) to adjust the temperature to the value set in the
temperature setting.
● If the mode automatically selected by the unit is not what you wish, select one of the mode operation (COOL, DRY,
FAN).
Cooling mode
or Dry mode
Monitor operation
Defi ned temperature in
temperature
setting
Mode Operation
Page 19
19
OPERATING TIPS
● 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.
● 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.
AUTO Restart
In Event of Power Interruption
Instructions relating to heating (*) are applicable only to “HEAT & COOL MODEL” (Reverse Cycle).
*
● 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.
*
● During use of the heating mode, the outdoor unit will occa-
sionally 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.
Notices
TEMPERATURE AND HUMIDITY RANGE
For the permissible ranges of temperature and humidity, refer to the installation manual.
SELF-DIAGNOSIS
When “Er” in temperature indicator is displayed, inspection of the air conditioning system is necessary. Please consult
authorized service personnel.
Unit number (usually “00”)
Error code
ex. Self-diagnosis check
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