Fujitsu Inverter User manual

OPERATING MANUAL
AIR CONDITIONER
Duct Type
P/N9374379460
KEEP THIS MANUAL
FOR FUTURE REFERENCE

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CONTENTS
SAFETY PRECAUTIONS........................................ 1
FEATURES AND FUNCTIONS ............................... 3
NAME OF PARTS ................................................... 4
PREPARATORY OPERATION ................................ 5
OPERATION ........................................................... 6
TIMER FUNCTIONS ............................................... 8
ON/OFF TIMER....................................................... 8
WEEKLY TIMER...................................................... 9
SAFETY PRECAUTIONS
LDo not attempt to install this air conditioner by yourself.
LThis unit contains no user-serviceable parts. Always consult authorized service personnel
for repairs.
LWhen moving, consult authorized service personnel for disconnection and installation of
the air conditioner.
LDo not become excessively chilled by staying for many hours in the direct cooling airflow.
LDo not insert fingers or objects into the outlet port or intake grilles.
L Do not start and stop air conditioner operation by turning off the electrical breaker and so on .
LIn the event of a malfunction (burning smell, etc.), immediately stop operation, turn off the
electrical breaker, and consult authorized service personnel.
LIn the event of refrigerant leakage , be sure to keep away from fire or any flammables.
(consult authorized service personnel)
LProvide occasional ventilation during use.
LDo not direct air flow at fireplaces or heating apparatus.
LDo not climb on, or place objects on, the air conditioner.
LDo not hang objects from the indoor unit.
LDo not set flower vases or water containers on top of air conditioners.
LDo not expose the air conditioner directly to water.
LDo not operate the air conditioner with a wet hand. An electric shock may result.
LDo not touch the switches with sharp objects.
LTurn off power source when not using the unit for extended periods.
LAlways turn off the electrical breaker whenever cleaning the air conditioner or changing the
air filter.
LConnection valves become hot during Heating; handle with care.
LCheck the condition of the installation stand for damage.
LDo not place animals or plants in the direct path of the air flow.
LWhen restarting after a long period of disuse in the winter, turn the power switch on at least
12 hours before starting the unit.
LDo not drink the water drained from the air conditioner.
LDo not use the air conditioner for other purposes. In order to avoid any quality deteriora-
tion, do not use the unit for cooling precision instruments, food, planets, animals or works
of art.
LDo not apply any heavy pressure to radiator fins.
LOperate only with air filters installed.
LDo not block or cover the intake grille and outlet port.
LEnsure that any electronic equipment is at least 1m away from either the indoor or outdoor
units.
LAvoid installing the air conditioner near a fireplace or other heating apparatus.
LWhen installing the indoor and outdoor units, take precautions to prevent access by in-
fants.
LDo not use inflammable gases near the air conditioner.
LInstall the drain hose so that it drains water properly.
LBefore using the appliance, read these “SAFETY PRECAUTIONS” thoroughly and operate in the correct way.
LThe instructions in this section all relate to safety; be sure to maintain safe operating conditions.
L“DANGER”, “WARNING” and “CAUTION” have the following meanings in these instructions:
TEMPERATURE SET BACK TIMER......................11
ECONOMY OPERATION ...................................... 12
CLEANING AND CARE......................................... 12
TROUBLESHOOTING .......................................... 13
OPERATING TIPS................................................. 14
SELF-DIAGNOSIS ................................................ 16
TEMPERATURE AND HUMIDITY RANGE ........... 16
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!

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L To install a unit that uses R410A refrigerant, use dedicated tools and piping mate-
rials that have been manufactured specifically for R410A use. Because the pres-
sure of R410A refrigerant is approximately 1.6 times higher than the R22, failure to
use dedicated piping material or improper installation can cause rupture or injury.
Furthermore, it can cause serious accidents such as water leakage, electric shock, or fire.
L
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.
L
When the thunder sounds and the lightning malfunction strike, do not touch the outdoor unit.
If the lightning strike, it can cause malfunction or electric shock.
L
Do not place other electric appliance or furniture under the outdoor unit and under the outlet
port of indoor unit. The water may drop and can cause the taint damage or fault.
L
Keep clean and do not place the things around the outdoor unit. If covered with fallen leaves,
it can cause the fault by the small animals or insects coming into and touch the internal elec-
tric parts.
L
Do not stand on unstable steps when operating or cleaning the air conditioner. It may over-
turn and can cause the injury.
L
Does not install the indoor unit and the outdoor unit in the following areas:
L
Area with high salt content, such as at the seaside. It will deteriorate metal parts, causing
the parts to fail or the unit to leak water.
L
Area filled with mineral oil or containing a large amount of splashed oil or steam, such as a
kitchen. It will deteriorate plastic parts, causing the parts to fail or the unit to leak water.
L
Area that generates substances that adversely affect the equipment, such as sulfuric gas,
chlorine gas, acid, or alkali. It will cause the copper pipes and brazed joints to corrode,
which can cause refrigerant leakage.
L
Area containing equipment that generates electromagnetic interference. It will cause the
control system to malfunction, preventing the unit from operating normally.
L
Area that can cause combustible gas to leak, contains suspended carbon fibers or flamma-
ble dust, or volatile inflammables such as paint thinner or gasoline. If gas leaks and settles
around the unit, it can cause a fire.
L
Area where small animals may live. It may cause failure, smoke or fire if small animals enter
and touch internal electrical parts.
L
Area where animals may urinate on the unit or ammonia may be generated.
CAUTION!

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FEATURES AND FUNCTIONS
NConvenient 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 opera-
tion 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.
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 eco-
nomic and comfortable operation.
ECONOMY OPERATION
When ECONOMY operation mode is operated, the room tem-
perature 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.
AUTO CHANGEOVER
The operation mode (cooling, dry, heating) is switched auto-
matically to maintain the set temperature, and the temperature
is kept constant at all times.
NEnergy saving and
Comfortable function
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
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
NRemote controller

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NAME OF PARTS
Remote controller

START/STOP Button

SET TEMP. (Temperature) Button

MODE Button

FAN Button

ECONOMY Button

TIMER MODE (CLOCK AD-
JUST) Button

DAY (DAY OFF) Button

SET BACK Button

SET TIME ( < > ) Button

TIMER DELETE Button

TIMER SET Button

Vertical Airflow Direction and
Swing Button*1

Horizontal Airflow Direction and
Swing Button*2

MAINTENANCE(FILTER RE-
SET) Button#1

Operation Lamp

Timer and Clock Display

Operation Mode Display

Fan Speed Display

Operation Lock Display

Temperature Display

Function Display
Defrost Display
Thermo Sensor Display
ECONOMY Display
Vertical Swing Display*3
Filter Display#1
*1~3 These functions 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
serviceman when using this function.

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PREPARATORY OPERATION
Press the TIMER MODE (CLOCK
ADJUST) button for 2 seconds
or more. The time display on the
remote controller will flash.
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 incre-
ments. Press and hold to adjust the current time in 10-minute
increments.
ex. Monday 23:00
Press again to end.
SU MO TU WE TH FR SA
1
3
5
Press the SET BACK button to switch between the
12- and 24-hour time displays.
3
4
SU MO TU WE TH FR SA SU MO TU WE TH FR SA
SET BACK
Set the current day and time

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OPERATION
AUTO COOL DRY *HEATFAN
AUTO MEDHIGH LOW
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 OPERA-
TION.
For details on the function, refer to page 12.
Instructions relating to heating (*) are applicable only to “HEAT & COOL MODEL” (Reverse Cycle).
To start/stop operation
To set the operation mode
LOperation mode setting
LRoom temperature setting
LFan speed setting
ECONOMY OPERATION

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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 flashes
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
appears.If any button is pressed during the child lock, the CL
display flashes.
•This function is locked at the factory. In order to detect the room temperature correctly, consult authorized serv-
ice personnel when using this function.

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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
NON
STOP
OFF
TIMER
ON
TIMER
WEEKLY
TIMER
No display
SU MO TU WE TH 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 display decreases as time passes.
From 1 to 24 hours ex. OFF timer set for 6 hours
LTo cancel
OFF timer (See page 8.)
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 8.)
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 9.)
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 11.)
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.

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WEEKLY TIMER
Press the TIMER MODE button to select the weekly timer.
2
Press the TIMER SET button for
2 seconds or more.
1
3LDay of the week setting
Press the DAY button to select the day of the week, and then press the TIMER
SET button to confirm 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
4LTime setting
Press the SET TIME (< >) buttons to set the time, and then press the TIMER SET
button to confirm 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.
5
Repeat steps 3and 4.
To complete the weekly timer settings, press the TIMER
SET button for 2 seconds or more.
LTo delete the operating time
If the TIMER DELETE button is pressed dur-
ing steps 3or 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.
12
123
Weekly timer setting
When the operating time is set,
the mark appears.