Mitsubishi Electronics Psa012b722 User Manual

USER’S MANUAL  
MITSUBISHI HEAVY INDUSTRIES LTD. PACKAGED AIR CONDITIONER  
ENGLISH  
FRANÇAIS  
DEUTSCH  
ITALIANO  
ESPAÑOL  
NEDERLANDS  
USER’S MANUAL  
MANUEL DE LUTILISATEUR  
ANWENDERHANDBUCH  
ISTRUZIONI PER LUSO  
MANUAL DEL PROPIETARIO  
GEBRUIKERSHANDLEIDING  
MANUAL DO UTILIZADOR  
ОΔНГІЕΣ ХРНΣНΣ  
Ceiling cassette −4 way− (FDT)  
Ceiling cassette −4 way Compact (600×600mm)− (FDTC)  
Duct connected −High static pressure− (FDU, FDUS)  
Duct connected −Middle static pressure− (FDUM)  
Ceiling Suspended (FDE)  
PORTUGUÊS  
ЕΛΛΗNIKA  
TÜRKÇE  
KULLANIM KILAVUZU  
¨
¨
This air conditioner complies with EMC Directive 89/336/EEC,  
91/263/EEC, 92/31/EEC, 93/68/EEC, 2004/108/EC, LV Direc-  
tive 2006/95/EC.  
Dieses Kimagerat erfullt die EMC Direktiven 89/336/EEC,  
91/263/EEC, 92/31/EEC, 93/68/EEC, 2004/108/EC, LV Direk-  
tiven 2006/95/EC.  
Este acondicionador de aire cumple con la directiva EMC:  
89/336/EEC, 91/263/EEC, 92/31/EEC, 93/68/EEC, 2004/108/EC,  
LV Directiva 2006/95/EC.  
La indicación CE sólo corresponde al área de suministro  
eléctrico de 50 Hz.  
Este aparelho de ar condicionado está em conformidade  
com a Directiva EMC 89/336/CEE, 91/263/EEC, 92/31/CEE,  
93/68/CEE, 2004/108/EC, a Directiva LV 2006/95/EC.  
A marca CE aplica-se à zona de fornecimento de energia a  
50 Hz.  
Die CE-Marke gilt für Bereiche mit einer Netzstromversorgung  
von 50 Hz.  
CE marking is applicable to the area of 50 Hz power supply.  
`
`
Ce climatiseur est conforme a la Directive EMC: 89/336/EEC,  
Questo condizionatore d’aria e conforme alla Direttiva EMC:  
Deze airconditioner voldoet aan EMC Directive 89/336/EEC,  
91/263/EEC, 92/31/EEC, 93/68/EEC, 2004/108/EC, LV Direc-  
tive 2006/95/EC.  
CE-markering is van toepassing op het gebied met een net-  
stroom van 50 Hz.  
Аυτό το κλιματιοτικό είναι σύμφωνο με τις προδιαγραφές των  
Оδηγιών EMC 89/336, 91/263/EEC 92/31 και 93-68 της EОK και  
της Оδηγίας 2004/108/EC LV 2006/95 της EОK.  
Tο οήμα CE ισχύει μόνον σε περιοχές όπου η τροφοδοσία είναι  
50 Hz.  
91/263/EEC, 92/31/EEC, 93/68/EEC, 2004/108/EC, LV Direc-  
89/336/EEC, 91/263/EEC, 92/31/EEC, 93/68/EEC, 2004/108/EC,  
LV Direttiva 2006/95/EC.  
Il marchio CE è applicabile alla fascia di alimentazione 50 Hz.  
tive 2006/95/EC.  
La marque CE s’applique aux régions alimentées en courant  
de 50 Hz.  
PSA012B722  
SAFETY PRECAUTIONS  
J Please read these “SAFETY PRECAUTIONS” before  
starting to use this product and use the product  
appropriately according to the instructions.  
If the unit has been submerged under water due to a  
natural disaster such as flood or typhoon, consult your  
dealer before using it again.  
Thank you very much for your purchase of this packaged air conditioning system  
produced by Mitsubishi Heavy Industries. Please read through this manual before  
using the product and use the product appropriately according to the instructions in  
the manual. After you have read the manual, store it with the warranty certificate in a  
safe place. It will help you when you have questions or problems.  
If you use it as it stands, it may lead to failure, electric shock or fire.  
J
The precautions provided here are classified into “  
DANGER” and “ CAUTION”. The “ DANGER” sections  
If any abnormal symptom (scorched flavor etc.) is  
found, cut off the power and stop the operation.  
Then consult your dealer.  
describe potentially hazardous situations that may lead to  
serious outcomes such as death and sericus injuries if the  
product is mishandled. Note, however, that depending on the  
If you use it as it stands, it may lead to failure, electric shock or fire.  
ENGLISH  
situation, the items listed in the “  
CAUTION” sections do  
Do not vent R410A into the atmosphere: R410A is a fluorinated greenhouse gas,  
covered by the Kyoto Protocol with a Global Warming Potential (GWP) = 1975.  
also have the potential of causing serious outcomes. Both  
warnings and cautions provide you important information  
related to safety ; please make sure to observe them.  
One of the causes of poor cooling or poor heating  
may be refrigerant leakage. Please consult your dealer.  
If the repair requires additional refrigerant, determine the service  
with the service staff. The refrigerant of air conditioner is not toxic.  
Normally the refrigerant does not leak. But if it leaks and contacts  
fire such as fan heater, space heater or cooking heater, it may  
produce toxic chemicals.  
J The symbols used throughout the main text of this  
manual have the following meaning.  
marks mean danger, alarm, and caution. The  
specified prohibited item is described in the  
triangle.The left mark means “Shock hazard alarm”.  
J SAFETY PRECAUTIONS...................................................................................................................................................1  
J HOW TO USE  
Do not insert fingers or sticks even if air blower does  
not operate.  
It may suddenly operate and cause injuries.  
{
marks mean prohibited items. The specified  
prohibited item is described in the circle or in the  
vicinage.  
< WIRED REMOTE CONTROL >  
z marks mean compulsory action or instruction.  
The specified prohibited item is described in the  
circle.The left mark means “Earth is needed”.  
J After you have read the manual, always store it where  
other users can refer to at any time. If a new owner takes  
over the system, make sure to pass this manual.  
NAMES AND FUNCTIONS OF REMOTE CONTROL BUTTONS  
“WIRED REMOTE CONTROL...........................................................................................................................................2  
HOW TO OPERATE............................................................................................................................................................3  
HOW TO PERFORM THE TIMER OPERATION.................................................................................................................3  
THE SELECTION OF TIMER MODE ...............................................................................................................................3  
SETTING THE TIME.........................................................................................................................................................4  
SLEEP TIMER MODE ......................................................................................................................................................4  
OFF TIMER MODE...........................................................................................................................................................4  
ON TIMER MODE ............................................................................................................................................................5  
WEEKLY TIMER MODE ...................................................................................................................................................5  
TIMER CANCELLATION MODE ......................................................................................................................................8  
HOW TO OPERATE IN SILENT MODE..............................................................................................................................8  
HOW TO ADJUST THE LOUVER.......................................................................................................................................9  
HOW TO SET THE AIRFLOW DIRECTION........................................................................................................................9  
HOW TO OPERATE VENTILATION..................................................................................................................................10  
FOR COMFORTABLE USE..............................................................................................................................................10  
INSPECTION DISPLAY, FILTER SIGN, AIR CONDITIONER NUMBER, STANDBY AND ROOM TEMPERATURE  
DISPLAY...........................................................................................................................................................................11  
< WIRELESS REMOTE CONTROL >  
CAUTION  
Do not use for particular purpose such as the storage  
of food, animals and plants, precision apparatus and  
arts etc.  
Storage goods may degrade.  
INSTALLATION PRECAUTIONS  
Do not operate the button with wet hand.  
DANGER  
It may cause electric shock.  
Make sure to have the installation done by your dealer  
or a specialist.  
If you install by yourself and the unit is not properly installed,  
water leakage, electric shock, fire and injuries caused by the drop  
of the unit may occur.  
When a burning appliance is used together with the  
unit, ventilate frequently.  
If ventilation is not sufficient, it may cause oxygen deficiency  
accident.  
Do not place a burning appliance where the airflow from  
the unit is directly blown.  
It may cause the imperfect combustion of the equipment.  
The preventive measures that the density of leaked  
refrigerant does not exceed the limit is necessary in  
case of installing the unit in a small room.  
The leakage of refrigerant may cause oxygen deficiency accident.  
Consult your dealer for the measures.  
Make sure that the unit installation foundation is not  
damaged due to long-term use.  
If it is left to stand, the unit may fall down causing injury.  
Do not wash the unit with water, nor place a vase with  
water on the unit.  
It may cause electric shock or ignition.  
CAUTION  
Make sure to perform grounding work.  
Do not connect grounding wire to any gas pipe, water pipe,  
conductor rods or telephones. Incomplete grounding may  
cause electric shock through leakage of electricity.  
Do not install the unit where the airflow is directly  
blown to animals and plants.  
NAMES AND FUNCTIONS OF REMOTE CONTROL BUTTONS  
WIRELESS REMOTE CONTROL.....................................................................................................................................11  
HOW TO OPERATE..........................................................................................................................................................12  
CURRENT TIME SETTING PROCEDURE ......................................................................................................................12  
ON – TIMER OPERATION................................................................................................................................................12  
OFF – TIMER OPERATION..............................................................................................................................................12  
PROGRAM TIMER OPERATION......................................................................................................................................12  
HOW TO ADJUST THE LOUVER ....................................................................................................................................13  
FOR COMFORTABLE USE..............................................................................................................................................13  
CHECK INDICATION, FILTER SIGN ................................................................................................................................13  
BACKUP BUTTON............................................................................................................................................................14  
J FOR SMART USE  
They may suffer from adverse effect.  
Make sure to mount a leakage breaker.  
Otherwise electric shock may occur. Please consult your  
dealer or a specialist for the mounting.  
Before cleaning, make sure to stop operation and  
cut off the power.  
The fan inside rotates at high speeds.  
Do not mount where flammable gas leakage can  
happen.  
If leaked gas stagnates in the unit, the gas may cause  
fire.  
Make sure to use proper size of fuse.  
Using steel wire or copper wire may lead to failure or fire.  
Do not store a flammable spray etc. near the unit, nor  
blow directly to the unit.  
It may lead to fire.  
Make sure to layout the drain pipe so that the water is  
completely drained.  
Otherwise, water may leak and wet household goods.  
Before maintenance, make sure to stop operation and  
cut off the power.  
The fan inside rotates at high speeds.  
OPERATION PRECAUTIONS  
HOW TO MAINTAIN..........................................................................................................................................................14  
J TROUBLE SHOOTING.....................................................................................................................................................15  
J NOTICE  
DANGER  
When the unit isn’t used for a long-term, cut off the  
power.  
The accumulation of dirt may lead to heat generation or fire.  
But, before resuming the operation, turn on the unit for six hours  
beforehand to save harmless.  
Do not expose yourself directly to cooled air flow for a long  
time or cool too much.  
It may be cause of deconditioning or health disorder.  
PREPARATION OF HEATING ..........................................................................................................................................16  
AUTO RESTART...............................................................................................................................................................16  
SETTING TO DISABLE BUTTON OPERATION...............................................................................................................16  
INSTALLATION, RELOCATION, AND INSPECTION MAINTENANCE.............................................................................16  
OPERATION RANGE .......................................................................................................................................................16  
Do not insert fingers or sticks into the air inlet or outlet  
grilles.  
It may cause injuries because of the fan rotating at high  
speed.  
Do not place any other electric appliances or household  
goods below or around the air conditioner.  
Dripping from the unit may lead to failure or contamination.  
1
HOW TO USE< WIRED REMOTE CONTROL >  
Do not touch the aluminum fin.  
Otherwise it may lead to injuries.  
PRECAUTIONS FOR RELOCATION OR REPAIRING  
NAMES AND FUNCTIONS OF REMOTE CONTROL BUTTONS (WIRED REMOTE CONTROL)  
CAUTION  
Do not clean the inside of the indoor unit by yourself.  
Make sure to consult your dealer or user inquiry  
counter specified by our company.  
If you select incorrect detergent or improper method, resin parts  
may be damaged and lead to water leakage. If the detergent is  
dropped on the electric component or motor, it may lead to failure,  
smoking or ignition.  
• The figure below shows the remote control with the cover opened. Note that the items in the liquid  
Wired remote control  
Never perform any modification. Contact your dealer for  
repairing.  
crystal display (LCD) area are shown for explanation purpose.  
Pull the cover downwards to open.  
Improper repairing may lead to water leakage, electric  
shock or fire. Normally the refrigerant does not leak. But if it leaks  
and contacts fire such as fan heater, space heater or cooking  
heater, it may produce toxic chemicals. When repairing refrigerant  
leakage, determine the service with the service staff that the repair  
has been finished without fault.  
Ventilation display  
Displayed during ventilation operation  
See page 10  
Weekly timer display  
Displays the settings of the  
weekly timer.  
Do not place objects on the outdoor unit, nor mount on  
it.  
Central control display  
Displayed when the air conditioning system is  
controlled by centralized remote control.  
If it is required to relocation and reinstall the unit, consult  
your dealer or a specialist.  
Improper installation of air conditioning unit may cause  
water leakage, electric shock and/or fire.  
Operation setting display area  
Displays setting temperature, airflow  
volume, operation mode and operation  
message.  
It may lead to injuries resulting from dropping or falling.  
During the operation or maintenance, do not use an  
unstable footrest.  
It may lead to injuries resulting from falling.  
Before repairing or checking indoor unit, be sure to turn  
off “Indoor unit power supply breaker”.  
It can result in electric shock or injury due to rotation of  
indoor unit fan if you perform check or repair with the “Indoor unit  
power supply breaker” turned on.  
Timer operation display  
Displays the timer operation setting.  
During thunderstorm, stop the operation and turn off  
the switch.  
A lightning strike may lead to failure.  
Operation/check indicator light  
During operation: Lit in green  
In case of error: Flashing in red  
Temperature setting buttons  
These buttons are used to set the  
temperature of the room.  
After several seasons of operating, inspections and  
maintenances are required except routine care and  
cleaning.  
Accumulated dirt or dust inside the indoor unit may cause odor,  
water leakage through the clogging of water discharging pipe for  
dehumidification. Specialized information and skills are required for  
inspections and maintenances. Therefore contact your dealer.  
Operation/stop button  
Place the panels removed for repairing or checking on  
the stable spot.  
Otherwise, dropping or falling may lead to injury.  
This button is used to operate and stop  
the air conditioning system.  
Press the button once to operate the  
system and press it once again to stop  
the system.  
Timer button  
This button is used to set  
the timer mode.  
MODE button  
This button is used to change the  
operation mode.  
See page 3  
Do not place any object around the outdoor unit, nor  
allow fallen leaves to pile up.  
Fallen leaves may induce insects and worms in them, and  
they may lead to failure, ignition or smoking by touching electric  
components.  
Timer setting buttons  
These buttons are used to set  
the timer mode and the time.  
See page 3 to 10  
FAN SPEED button  
This button is used to set the airflow  
volume.  
Do not use with inlet/outlet grilles or other panel  
removed.  
Otherwise, it may lead to injuries.  
VENT button  
GRILL button  
This button is used to operate external  
ventilator. See page 10  
This button has no function.  
When this button is pressed,  
(Invalid Operation)  
Do not operate or stop the unit by using the power  
supply switch.  
It may lead to fire or water leakage.  
If auto restart is set effectively, the fan may rotate suddenly  
causing injuries.  
is displayed,but it does not mean a failure.  
LOUVER button  
This button is used to operate/stop the  
swing louver. See page 9  
AIR CON No. button  
•Display the indoor unit number connected to this  
remote control.  
Do not touch blowout port when the swing louver  
moves.  
Otherwise, it may lead to injuries.  
•This button is used for indoor unit address setting.  
SET button  
Do not strain the remote control cord.  
A part of core wire may be cut off causing electric leakage.  
•This button is used to fix the setting.  
•This button is used to set the silent mode.  
See page 3 to 10  
CHECK button  
This button is used at servicing.  
Do not use water heater etc. near the indoor unit or  
remote control.  
If a Vapor-generating appliance is used near them, it may  
lead to water drop causing electric leakage or short circuit.  
TEST button  
This button is used during test operation.  
RESET button  
•Press this button while making settings to go back to the  
previous operation. See page 3 to 10  
•This button is also used to reset the “FILTER CLEANING” display.  
(Press it after cleaning the air filter)  
Do not use the unit where powder or fiber is floating.  
Fine powder or fiber passing through the air filter may  
stagnate inside the unit and lead to electric leak or short  
circuit.  
Do not place objects under the unit which must avoid  
being exposed to water.  
Over 80 percent humidity or the clogging of drain pipe may  
damage them through dew dropping.  
PRECAUTIONS FOR WASTE DISPOSAL  
Your Air Conditioning product may be marked with this symbol. It means that waste electrical and electronic  
equipment (WEEE as in directive 2002/96/EC) should not be mixed with general household waste. Air  
conditioners should be treated at an authorized treatment facility for re-use, recycling and recovery and  
not be disposed of in the municipal waste stream. Please contact the installer or local authority for more  
information.  
2
HOW TO OPERATE  
< WIRED REMOTE CONTROL >  
Turn on the power supply of both indoor/outdoor units for six hours before starting the unit to protect the units. (The crank  
case heater is energized in order to heat up the compressor.) Do not turn off the power supply. (The crankcase heater is  
conducted while the compressor is stopped, preventing failure of the compressor due to accumulation of liquid refrigerant by  
keeping the compressor warm.)  
HOW TO PERFORM THE TIMER OPERATION < WIRED REMOTE CONTROL >  
THE SELECTION OF TIMER MODE  
ATTENTION  
1 Press  
TIMER button.  
It enters the timer mode.  
“Current day of the week” and “Current time ” are displayed.  
[EXAMPLE] Monday : 10 o’clock in the morning  
Fan speed  
mode  
Operation  
mode  
Setting  
temperature  
1 Press  
button.  
The unit starts operating.  
Display area :  
[
[
[
]
]
2 Press  
MODE button.  
] (lit)  
The range of operation mode is displayed according to the model  
of indoor unit.  
2 Press or button.  
Every time the button is pressed, the display changes in the  
By pressing or button, it is possible to choose the item to set.  
following order dry  
cool  
fan  
heat  
auto.  
Æ
Æ
Æ
Æ
(EXAMPLE display for auto-operation enabled)  
1
3
[
] (set to current time)  
È
È
È
With auto operation,  
heating and cooling is  
automatically changed  
depending on difference  
between the setting  
temperature and sucking  
room air temperature.  
cooling operation  
[
] (Every operation, the unit stops operation  
after the certain period has elapsed.)  
heating  
operation  
[
[
] (The unit stops operating at the setting  
time.)  
㧙ꢀ  
㧗ꢀ  
room setting  
temperature  
] (The unit starts operating at the setitng  
time.)  
3 Press TEMP button.  
È
È
Press  
or  
button to set the room temperature.  
[
[
] (Timer set by one week)  
] (Cancel the timer setting)  
1 2 3  
5 4 2  
4 Press  
FAN SPEED button.  
The range of fan speed modes is displayed according to the model  
of indoor unit.  
Operation mode  
If you press the button, the display of the following timer modes  
is switched in the upwards direction. If you press the  
RESET button, timer mode ends and return to original satus.  
At 3-speed.............“  
At 2-speed.............“  
” or “  
DRY  
COOL  
FAN  
HEAT  
AUTO  
At 1-speed.............The operation is invalid  
3 Press  
SET button.  
The selected timer mode is set.  
5 Press  
LOUVER button.  
If the indoor unit is equipped with the auto swing function, press  
the  
For setting of each timer mode ,See next page and thereafter.  
LOUVER button once and current louver status is  
The possible combination of the timer function is mentioned in the  
following table.  
displayed.  
If the indoor unit is not equipped with the auto swing function, the  
message “ ” is displayed.  
Combination of modes that can be set together  
({: possible ×: impossible)  
JFunctions of each timer operation  
For the louver operation  
See page 9 to 10  
A Press  
LOUVER button, and change the display to  
Sleep timer  
Sleep timer OFF timer ON timer Weekly timer  
When the setting time elapses, the unit stops operating.  
10 settings are available, from “an hour later OFF” to “10  
hours later OFF”.  
Sleep timer  
OFF timer  
ON timer  
×
{
{
×
×
×
J Guideline for room temperature setting  
COOL ...............26 to 28°C  
For the louver stopping  
See page 9 to 10  
×
{
×
A Press once while the louver is operating to display stop  
positions in order.  
B Press the button once more at the preffered stop position to  
stop the louver at that position.  
The unit will stop when the setting time is reached.  
{
DRY..................21 to 24°C  
OFF timer  
Weekly timer  
×
×
HEAT ................22 to 24°C  
The unit stops operating at the setting time.  
You can set only one time at a time.  
If you select a combination of modes that cannot be set together  
and press the SET button, the message “  
Effective stop position  
See page 9 to 10  
FAN...................Setting unnecessary  
At automatic operation:.................................middle  
At cooling/dehumidifying operation:..............Horizontal  
At heating operation: ....................................downwards  
ON timer  
(invalid operation)” is displayed for 3 seconds and then the  
display return to the one selected in step 2.  
The unit starts to operate at the setting time. You can set  
the temperature at the same time. You can set only one  
time at a time.  
The settings of operation change, temperature  
and air flow volume adjustment can be changed  
even when the air conditioner is stopped. When a  
button is pressed while the operation is stopped,  
the corresponding display is turned on and you can  
change the setting. The display turns on for three  
seconds after changing the setting, then turns off  
automatically.  
Weekly timer  
Stop  
Press  
button  
Up to four times of timer operation (ON timer/OFF timer)  
are available for each day of the week.  
Once Weekly timer is set, the unit performs the same  
operation every week.  
NOTICE  
NOTICE  
There may be a case that “  
button mentioned in the above is pressed, but it is not a malfunction.  
In that case, the operation of the button is prohibited.  
If you press the  
button while timer mode is operative, timer mode is finished and the display will return  
” is displayed when any  
to the original display. Note that the setting which has not completed is canceled.  
If you have set the ON timer mode and either the OFF timer or Sleep timer mode at the same time, the OFF timer  
(or Sleep timer) shows preference to the ON timer.  
When you start to operate for the first time after turning the power  
supply on, the unit starts to operate as below. You can change the  
setting as you like.  
If you press the  
timer button and “  
” is displayed, the button can not be operated because the  
button operation is disabled. If you want to make the button effective , consult your dealer.  
Central control......................Turned off  
Operation changeover..........With auto mode : auto cooling  
Without auto mode : cooling  
Set temperature ...................23°C  
If you do not press any button for several minutes after pressing the  
returns to the original display.  
Timer button, Timer mode ends and  
If a power failure occurs, the specified timer settings will be canceled except Sleep timer. Weekly timer setting will  
return to the condition that all days of the week selected as “holidays”.  
Fan speed ............................  
Louver position.....................Horizontal  
3
HOW TO PERFORM THE TIMER OPERATION  
< WIRED REMOTE CONTROL >  
SETTING THE TIME  
SLEEP TIMER MODE  
Timer operation is performed based on the time of the clock which is set by the following steps. Make sure to  
set the time to the current time correctly.  
After certain period has elapsed, the unit stops operating.  
• Sleep timer  
The unit stops operating at each setting time once it is set.  
1 Press  
TIMER button.  
2 Press button once.  
1 Press  
TIMER button.  
Æ
It enters the timer mode.  
“Current day of the week” and “Current time” are displayed.  
3 Press  
SET button.  
Display area :  
[
[
[
]
]
[EXAMPLE]  
” flashes,  
]
” lights.  
]
4 Press or button.  
2 Press  
SET button.  
7
The display changes as below. Set as you like.  
6
” ~ “  
The display area shows :  
[
(flashes)  
[
[
] (current time)  
]
5 Press  
SET button.  
Sleep timer has been set.  
The air conditioner starts operating if it is stopped when the sleep  
timer is set.  
3 Press or button.  
After “  
” is displayed in the display area, it returns to  
Align the mark above the day of the week to the current  
day of the week.  
step 2.  
<When “Ten hours later OFF” is set >  
1 3 2  
• •  
5 4  
Press and mark to move to the right and the left respectively.  
” (lights)  
” (lit for two seconds)  
1 2•4 3•5  
If you press the  
the previous screen and display “  
RESET button, the remote control will return to  
”.  
È
” (lights)  
” (lit)  
NOTICE  
The time left is displayed by one hour as time passes off after the  
setting.  
When the setting time elapses, the unit stops operating.  
Every operation, the unit stops operation after the certain period  
has elapsed.  
4 Press  
SET button.  
6
The day of the week is fixed, and the flashing of mark turns to  
lighting stably.  
• If you press  
button while timer mode  
is operative, timer mode is canceled and the  
display will return to the original display.  
“current time” is displayed by flashing in the ON timer display area,  
and “  
” is displayed in the display area.  
If you do not press any button for several minutes  
after entering the timer mode, the timer mode  
ends and returns to the original display.  
6 Press  
button. The timer mode is finished.  
OFF TIMER MODE  
The unit stops operating at the setting time.  
This setting is effective for only once.  
1 Press  
TIMER button.  
5 Press or button.  
Set to the current time.  
2 Press button twice.  
If you press the  
RESET button, the remote control return to  
[
]
[
]
[
]
Æ
Æ
step 1.  
3 Press  
SET button.  
6 Press  
SET button.  
[EXAMPLE]  
” flashes,  
” lit.  
The flashing for time display turns to lighting stably, and  
” is displayed to show that the current time is set.  
Two seconds later, it returns to step 1, and “  
displayed.  
” is  
4 Press or button.  
6
Set the time at which you want to stop the operation.  
Set “Hour”  
7 Press  
button.  
If you press or button for a while, “Hour” display is changed  
by one hour, and stops when you stop pressing.  
The timer mode is finished.  
Set “Minute”  
If you press or button, the display increases or decreases  
by ten minutes.  
5 Press  
SET button.  
OFF timer has been set.  
After “  
” is displayed in the display area, it returns  
1 2•4 3•5  
to step 2.  
<If set to 6:00 PM >  
Once the OFF timer is set, it is not possible to  
start operation. If you would like to operate the  
air conditioner, press ON/OFF button before  
hand to turn on.  
ATTENTION  
” (lit)  
NOTICE  
” (lights for two seconds)  
NOTICE  
If you press  
button while timer mode is operative,  
”(lit)  
” (lit)  
timer mode is canceled and the display will return to the  
original display. Note that the setting which has not been  
completed is canceled.  
If you do not press any button for several minutes after  
entering the timer mode, the timer mode ends and returns  
to the original display.  
• If you press  
is operative, timer mode is canceled and the  
display will return to the original display.  
If you do not press any button for several minutes  
after entering the timer mode, the timer mode  
ends and returns to the original display.  
button while timer mode  
The unit stops operating at 6:00 PM.  
The time display is also turned off.  
6 Press  
button. The timer mode is finished.  
4
HOW TO PERFORM THE TIMER OPERATION  
< WIRED REMOTE CONTROL >  
ON TIMER MODE  
WEEKLY TIMER MODE  
The unit starts to operate at the set time. It is possible to set temperature at which you want to start the operation.  
One setting results in one operation only.  
JSelection of Weekly timer mode  
Up to four schedules with timer operation (ON timer/OFF timer) are available for each day of the week.  
Note : Set time every month in Weekly timer mode.  
1 Press  
TIMER button.  
2 Press button for three times.  
1 Press  
TIMER button.  
[
[
]
]
[
]
[
]
Æ
Æ
Æ
2 Press button for four times.  
[
[
]
]
[
]
[
]
Æ
Æ
Æ
Æ
10  
8
3 Press  
SET button.  
[
]
[EXAMPLE]  
” flashes,  
” lit.  
3 Press  
SET button.  
”is displayed in the display area.  
4 Press or button.  
Set the preferred time to start the operation  
4 Press or button.  
Set “Hour”  
By pressing or button, it is possible to choose the item to set.  
If you press or button for a while, “Hour” display is changed  
by one hour, and stops when you stop pressing.  
” (for setting the timer)  
Set “Minute”  
If you press or button, the display increases or decreases  
by ten minutes.  
” (for setting the selected day of the week to  
holiday)  
1 2 3  
• •  
4 5  
• •  
6 7  
” (for checking the timer setting and canceling  
individual settings)  
5 Press  
SET button.  
1 2•4 3•5  
ON timer has been set.  
NOTICE  
The left display is displayed in the display area.  
<If set to 10:00 AM >  
5 Press  
SET button.  
If you press  
button while timer mode  
” (lit)  
” (lit)  
The selected mode is fixed.  
is operative, timer mode is canceled and the  
display will return to the original display.  
If you do not press any button for several minutes  
after entering the timer mode, the timer mode  
ends and returns to the original display.  
If you press the  
return to the previous screen.  
RESET button, the remote control will  
9
JWEEKLY TIMER SETTING  
6 Press or button.  
Press button and “  
” is displayed  
” is displayed  
1 In the Weekly timer mode, select “  
Press button and “  
Select either of the above two.  
and press SET button confirm.  
See step 1 to 5 in the above “Selection of Weekly timer mode”  
Go to step 7 if temperature is set.  
Go to step 9 if set temperature is not set.  
” (is flashing)  
” is displayed in the display area.  
7 Press  
SET button.  
The left display is displayed in the display area.  
2 Press or button.  
<If set to 10:00 AM >  
“27°C” (The current set temperature is displayed flashing)  
Set the mark above the day of the week to the day to be set  
for timer setting. Press and to move to the right and left  
respectively, and will move flashing.  
”(lit)  
” (lit)  
If you press the button when the “” marks are displayed on  
from “MON” to “FRI”, and then “SUN” to “SAT” (every day) with  
flash, this can be used to apply the same schedule on these days.  
8 Press  
or  
button to set temperature.  
If you press  
or  
button, the display increases or  
Press  
RESET button to return to “selecting Weekly  
is displayed.  
See the above step 3.  
decreases by 1°C.  
Set temperature at which you want to start the operation.  
timer mode screen”, and  
If you press the  
return to the previous screen.  
RESET button, the remote control will  
2•4•6•8•10  
3 Press  
SET button.  
” mark above the day of the week is switched to light, and is fixed.  
” is displayed as the left display.  
3•5•7•9•11•13  
9 Press  
SET button.  
NOTICE  
• If you press the  
mode is operative, timer mode is canceled and  
the display will return to the original display.  
If you do not press any button for several  
minutes after entering the timer mode, the timer  
mode ends and returns to the original display.  
<In case Monday is set>  
ON timer is set, and after “  
to step 2.  
” is displayed, it returns  
4 Press or button.  
button while timer  
Up to four schedules can be set for each day. Select the timer  
schedule number you want to set. Set either ON timer or OFF  
timer for each single operation. (See the left EXAMPLE ).  
Press button to make the mark next to the number flash and  
move downwards.  
<If set to 10:00 AM >  
” (lit)  
” (lights)  
È
[EXAMPLE]  
Number 1 :  
Number 2 :  
Number 3 :  
Number 4 :  
” (lit)  
” (lights)  
Press the button to move the mark upwards.  
ON timer and either Sleep timer or OFF timer are  
set together, the temperature of ON timer is not  
displayed.  
1◄  
2
3
Set temperature is displayed only in case it is set.  
The unit starts to operate at setting time with set temperature.  
The time display is turned off.  
4
ON timer and either Sleep timer or OFF timer are  
set together, OFF timer (or Sleep timer) shows  
preference.  
*
Four operations can be set  
with only ON timer or only OFF  
timer.  
Press the  
RESET button to return to step 1 display.  
10 Press  
button.  
The timer mode is finished.  
5
HOW TO PERFORM THE TIMER OPERATION  
< WIRED REMOTE CONTROL >  
JNext setting and Exiting Weekly timer Mode  
5 Press  
SET button.  
After “  
” is displayed, “  
” is displayed.  
mark next to a number is switched to light.  
” or “  
” is displayed.  
The settings so far are effective and the display changes as shown  
on the left.  
1 Press or button.  
By pressing or button, it is possible to choose the item to set.  
6 Press or button.  
” (selecting the next timer operation number  
for the same day of the week)  
Press button and “  
Press button and “  
” is displayed.  
” is displayed.  
Select either of the above two.  
” (selecting the next day of the week)  
” (Timer mode ends)  
Press the  
RESET button to return to the step 3 display.  
7 Press  
SET button.  
” is displayed  
2 Press  
SET button.  
<When “  
” is selected>  
In case  
is selected,  
is  
is  
displayed.  
Repeat step 3 and onward of Weekly timer setting on page 5.  
8 Press or button.  
Set the time.  
In case is selected,  
displayed.  
Repeat step 1 and onward of Weekly timer setting on page 5.  
In case “ ” is selected, timer mode is ended.  
Press the  
RESET button to return to the step 5 display.  
9 Press  
SET button.  
Time display is switched to light, and is fixed.  
In case of OFF timer setting, setting process is completed on  
this step.  
1 2  
A “_” mark is lit (  
Æ
) under the day of the week which  
you set and the display appears as the left diagram.  
Proceed to “Next setting and Exiting Weekly timer Mode” on the  
right page.  
In case of ON timer setting, “  
” is displayed,  
proceed to step 10.  
10 Press or button.  
Select either “  
” or “  
”.  
11 Press  
SET button.  
In case “  
” has been selected, ON timer setting  
process is completed.  
A “_” mark is lit (  
Æ
) under the day of the week which  
you set and the display appears as the left diagram.  
Proceed to “Next setting and Exiting Weekly timer Mode” on the  
right page.  
NOTICE  
JDisplay after Weekly timer Modes Setting  
In case “  
” has been selected, “  
If you press  
button while timer  
is displayed; Proceed to step 12.  
The day of the week set is underlined.  
mode is operative, timer mode is canceled and  
the display will return to the original display.  
The mark is displayed above the current day of the week.  
12 Press the temperature setting buttons  
or  
The display of all the timer operation numbers set for the  
current day is turned on. The mark indicates the next  
setting number to be activated, and the set time is displayed.  
If you do not press any button for several  
minutes after entering the timer mode, the  
timer mode ends and returns to the original  
display.  
.
Press the  
1°C.  
or the  
button to increase or decrease by  
Set the temperature of operation starting.  
The timer operations are executed in order, and the number  
and time display is turned off when all the timer operations  
for the current day is completed.  
Press the  
reset button to return to the display “  
”.  
If you select a day of the week for which setting  
have already been made, all the timer numbers  
that have been set are displayed. And the details  
of the timer setting for the number which has “”  
mark is displayed. You can modify the selected  
setting by overwriting it.  
13 Press  
SET button.  
ON timer setting with start-up temperature has been  
completed.  
The temperature display switches from flashing to lighting  
stably.  
A “_” mark is lit (  
Æ
) under the day of the week which  
you set and the display appears as the left diagram.  
Proceed to “Next setting and Exiting Weekly timer Mode” on the  
right page.  
In case you set ON timer and OFF timer operating  
at the same time, OFF timer will be effective.  
If the same two time are set for ON timer on the  
same day, the lower number shows preference.  
6
HOW TO PERFORM THE TIMER OPERATION  
< WIRED REMOTE CONTROL >  
JWeekly timer Holiday Setting  
JWeekly timer Checking  
It is possible to disable the timer settings temporarily which has been already set by applying Holiday Set on  
a particular day of the week. When the Holiday Setting is cancelled, the timer setting is enabled again.  
1 In the Weekly timer mode, select and set  
”.  
1 In the Weekly timer mode, select and set  
”.  
See “Selecting Weekly timer setting” step 1 to 5 on page 5.  
The display shows the detailed timer operation setting  
information of the smallest timer operation number on the day  
See “Selecting Weekly timer setting” step 1 to 5 on page 5.  
of the week as showm on the left. (But if not set, “  
is displayed.)  
” is displayed in the display area  
(is flashing)  
3
” is displayed.  
4
2 Press or button.  
2 Press or button.  
Move the “” mark displayed above the days of week to the  
day which you want to set as Holiday.  
Detailed timer operation setting are displayed in accordance with  
the timer operation you have selected.  
Press and to move to the right and left respectively.  
Press button to display from Sunday and the lowest timer  
operation number.  
If you press the button when the “” marks are displayed on  
from “MON” to “FRI”, and then “SUN” to “SAT” (every day) with  
flash. This can be used in case you would like to apply Holiday  
setting on these days.  
Press button to display the settings in the reverse order.  
In case press the  
return to the previous screen and display “  
RESET button, the remote control will  
”.  
3 Press  
button.  
2
Timer mode ends.  
2 3  
3 Press  
SET button.  
The “” mark above the day of the week switches from flashing  
to lighting stably, the day set as a holiday is lit with ( ) , and the  
following is displayed.  
JWeekly timer Mode Setting Canceling  
It is possible to cancel Weekly timer mode settings of each day of the week, as well as individual timer operation number.  
See “Timer Operation Cancellation Mode” on page 8 to cancel settings of all days of week.  
[
] (lit)  
” (lit for two seconds)  
È
[
] (lit)  
”(lit)  
1 In the Weekly timer mode, select and set  
After the holiday setting has been completed, the remote control  
returns to step 1. Repeat step 2 and 3 to continue setting further  
holidays.  
”.  
See “Selecting Weekly timer setting” step 1 to 5 on page 5.  
The display shows the detailed timer operation setting information  
of the smallest timer operation number on the day of the week as  
showm on the left.  
NOTICE  
If you set a day of the week for which no timer operation is set,  
” is displayed for two seconds and the display returns  
to the one shown in step 1.  
5
4 Press  
button.  
2 Press or button.  
Timer mode ends.  
Detailed timer opetation setting are displayed in accordance with  
the timer operation you have selected.  
Press button to display from Sunday and the lowest timer  
operation number.  
JCanceling Holiday Setting  
1 In the Weekly timer mode, select and set  
Press button to display the settings in the reverse order.  
”.  
Select the timer operation number on a day of the week you  
want to cancel.  
See “Selecting Weekly timer setting” step 1 to 5 on page 5.  
3
2
If you press the  
return to the previous screen, and display “  
RESET button, the remote control will  
”.  
2 Press or button.  
Move the “” mark displayed above the day of week to the  
day on which you want to cancel Holiday setting.  
Select a day of the week that has been set as holiday.  
4
3 Press  
SET button.  
” is displayed.  
3 Press  
SET button.  
( ) display is turned off and the following is displayed.  
If you press the  
return to the previous screen, and display “  
RESET button, the remote control will  
”.  
[
] (lit)  
” (lit for two seconds)  
4 Press  
SET button.  
È
NOTICE  
NOTICE  
• If you press  
” is displayed, and the displayed detail timer operation  
[
] (lit)  
settings disappears and is canceled.  
If you press  
button while timer mode  
button while timer mode  
” (lit)  
È
After the holiday setting has been canceled, the remote control  
returns to step 1. Repeat step 2 and 3 to continue canceling  
further holiday settings.  
is operative, timer mode is canceled and the  
display will return to the original display.  
is operative, timer mode is canceled and the  
display will return to the original display.  
” is displayed again.  
Repeat step 2 to 4 to continue canceling other settings.  
If you do not press any button for several  
minutes after entering the timer mode, the timer  
mode ends and returns to the original display.  
If you do not press any button for several  
minutes after entering the timer mode, the timer  
mode ends and returns to the original display.  
5 Press  
button.  
4 Press  
button.  
Timer mode ends.  
Timer mode ends.  
7
HOW TO OPERATE IN SILENT MODE  
< WIRED REMOTE CONTROL >  
HOW TO PERFORM THE TIMER OPERATION  
< WIRED REMOTE CONTROL >  
TIMER CACELLATION MODE  
SILENT MODE  
When the silent mode is set, the unit operates more silently reducing noise from the outdoor unit.  
The system applies the silent operation mode at the starting time to be set, and finish it after certain period has  
passed.  
1 Press  
TIMER button.  
Timer mode begins.  
The current “The day of the week” and “the current time” are  
displayed.  
Once the system is set to operate with the silent mode, the setting is applied everyday until it is canceled.  
JSilent Mode Setting  
1
In the timer mode, set the current day of the week  
and current time.  
[
]
See page 4 step 1 to 7  
2
Press  
SET button for three seconds or more.  
2 Press button for five times.  
The remote control goes into silent mode setting and the following  
is displayed.  
7
1
È
È
È
È
È
” or “  
” (lit)  
(first press)  
3 Press or button.  
If button is pressed, “  
(second press)  
(third press)  
(fourth press)  
(fourth press)  
” is displayed.  
” is displayed.  
If button is pressed, “  
Select “  
”.  
If you press the  
the original screen.  
RESET button, the remote control return to  
3•5•6  
2•4  
4 Press  
SET button.  
The following setting is displayed.  
3 Press  
SET button.  
” (flashing)  
” (lit)  
Timer Cancellation Mode begins.  
1 3 2  
• •  
5 4  
• •  
7 6  
4 Press or button.  
By pressing or button, it is possible to choose the item to cancel.  
5 Press or button.  
Set the “ON TIME”.  
Set “Hour”  
If you press or button for a while, “Hour” display is changed  
by one hour, and stops when you stop pressing.  
” (canceling all days of the week)  
Set “Minute”  
8
If you press the  
RESET button, the remote control will  
If you press or button, the display increases or decreases  
by ten minutes.  
return to the previous screen, and display “  
”.  
(step 2 above)  
If you press the  
the “  
RESET button, the remote control return to  
” display.  
In case “  
” was selected.  
In case “  
selected.  
” , “  
” or “  
” was  
All the Weekly timer setting will be canceled if you proceed the  
6 Press  
SET button.  
following steps.  
The ON TIME is set and the following is displayed.  
To cancel a part of the timer setting, please see “Canceling  
Weekly timer Mode Setting” on page 7.  
5 Press  
SET button.  
” (flashing)  
” (lit for two seconds)  
JCanceling Silent Mode (Setting)  
The detailed setting of selected timer mode are displayed  
as shown below.  
Select “  
” in step 2, press  
È
5 Press  
SET button.  
SET button and silent setting is canceled  
ending the silent mode.  
(But if not set, “  
” is displayed)  
” (flashing)  
” (lit)  
The settings are displayed as shown below.  
(But if not set, “ ” is displayed)  
<Display EXAMPLE when “  
” is selected>  
” is displayed.  
NOTICE  
The remote control has main-sub units, silent setting  
cannot be operated with sub unit .  
After the silent mode is set, the following is displayed  
for 3 seconds at the set time and the unit returns to  
the original display.  
If you would like to quit cancellation, press the  
button to return to the “ ” display. (step 4 above)  
RESET  
If you would like to quit cancellation, press the  
button to return to the “ ” display. (step 4 above)  
RESET  
7 Press or button to set the duration.  
Select OFF time.  
6 Press  
SET button.  
6 Press  
SET button to confimn.  
When you press button, and the duration is increased by two  
At the ON time : “  
At the OFF time : “  
If you select “  
The day of the week display area turns off, and after the  
message “  
The display of the detailed timer setting is turned off, and  
after the message “ ” is displayed for two seconds,  
” is displayed again. (step 4 above)  
Repeat steps 4 to 6 to continue canceling timer mode settings.  
hours as below, “  
Æ
Æ
Æ
” is displayed for two seconds, and the  
”. (step 4 above)  
display returns to “  
”, you can continue the  
When you press button, and the duration is decreased by two  
hours.  
By this operation settings, for all days of the week are canceled.  
silent mode until it is canceled. At the first ON time,  
the display shows “  
” for three seconds  
NOTICE  
If you press  
RESET buttons, the remote control return to  
and returns to original display.  
the “ON TIME SET”.  
• If you press  
button while timer mode is  
7 Press ON/OFF button.  
• If you press  
button while silent  
operative, timer mode is canceled and the display  
will return to the original display.  
Timer mode ends.  
8 Press  
SET button.  
mode is operative, silent mode is canceled  
and the display will return to the original  
display. Note that the setting which has not  
been completed is canceled.  
The setting is fixed and displayed.  
If you do not press any button for several minutes  
after entering the timer mode, the timer mode ends  
and returns to the original display.  
” is displayed, and the silent mode setting ends.  
The setting display turns off, and returns to original display.  
8
HOW TO ADJUST THE LOUVER  
ADJUSTING WITH LOUVER BUTTON (Indoor unit with auto swing function)  
< WIRED REMOTE CONTROL >  
HOW TO SET THE AIRFLOW DIRECTION (IN CASE OF FDT, FDTC, FDE) <WIRED REMOTE CONTROL>  
It is possible to change the movable range of the louver on the air outlet from the wired remote control. Once the top and bottom position is  
set, the louver will swing within the range between the top and the bottom when swing operation is chosen.  
With Ceiling cassete −4 way − FDT, it is also possible to apply different setting to each louver.  
Press  
LOUVER button once, and the current status of louver is displayed.  
1
Stop the air conditioner and press  
button and LOUVER button simultaneously  
SET  
The display during  
auto swing  
for three seconds or more.  
The following is displayed if the number of the indoor units  
connected to the remote control is one. Go to step 4.  
È
Press  
10  
The display with the  
louver position fixed  
The following is displayed if the number of the indoor units  
connected to the remote control are more than one  
È
2 Press or button.(selection of indoor unit)  
Select the indoor unit of which the louver is set.  
[EXAMPLE]  
“  
“  
⇔  
When you operate the swing louver  
When the position of the swing louver is fixed  
2•4•6•8  
1
3•5•7•9  
1. Press  
LOUVER button, and button the display to  
”.  
1. Press  
LOUVER button once while the louver  
is swinging, and 4 stop positions are displayed every  
one second in order.  
3 Press  
SET button. (determination of  
indoor unit)  
↔  
Selected indoor unit is fixed.  
NOTICE  
[EXAMPLE]  
For FDT type, in case the louver No.  
to be set is uncertain, set any louver  
temporarily. The louver will swing  
once when the setting is completed  
and it is possible to confirm the  
louver No. and the position.  
After that, choose the correct louver  
No. and set the top and bottom  
position.  
Press  
” (lit for two seconds)  
2. Press  
LOUVER button once when the display  
of the louver comes to the position you desire.  
È
È
No. 2  
No. 4  
The display is switched to stop, and the position of louver is fixed.  
Recommended louver fixed position  
No. 1  
No. 3  
4 Press or button. (selection of louver No.)  
Select the louver No. to be set according to the left figure.  
[EXAMPLE]  
The function of the swing louver  
during the heating preparation,  
heating/defrost  
COOL•DRY  
For FDTC and FDE type, set louver  
No. 1.  
Piping side  
Drain hose side  
“  
“  
⇔  
Louver No.  
[for FDT]  
Other settings selected have no  
effect.  
” or “Heating/Defrost” is  
horizontal position  
Note : For FDTC and FDE, select “  
No. settings have no effect.  
”. Other louver  
displayed, the position of the swing louver is  
automatically switched to horizontal.  
HEAT  
When the operation is switched to normal after “The heating  
preparation” or “Heating/Defrost” ends, the position of swing louver  
returns to that of setting.  
5 Press  
louver No.)  
SET button. (Determination of  
The louver No. to be set is confirmed and the display shows the  
upper limit of the movable range.  
CAUTION  
[EXAMPLE] If No.1 louver is selected,  
Do not move the swing louver forcibly by hands for fear that it may be damaged.  
current upper limit position  
Do not blow downwards during cooling operation for a long time for fear that dew condensation may be formed at the side panel. (In  
case of FDE)  
6 Press or button. (selection of upper limit  
position)  
Select the upper limit of louver movable range.  
“position 1” is the most horizontal, and “position 6” is the most  
downwards.  
(horizontal)  
“position --” is to return to the factory setting. If you need to  
change the setting to the factory setting, use “position --”.  
“  
“  
“  
“  
“  
“  
” (The most horizontal)  
(downwards)  
the position of the louver  
” (The most downward)  
” (Return to the position of shipment)  
9
HOW TO OPERATE VENTILATION (WHEN A VENTILATOR IS INSTALLED) < WIRED REMOTE CONTROL >  
HOW TO SET THE AIR FLOW DIRECTION  
< WIRED REMOTE CONTROL >  
When the ventilator is set to “NO VENTI LINK”, the ventilator can be turned on and off independently regardless  
7 Press  
SET button (Fixing of the upper  
of the operation of the air conditioner.  
When the ventilator is set to “VENTI LINK”, the ventilator operation will be interlocked with the air conditioner  
operation.  
limit position)  
The upper limit position is fixed and the setting position is  
displayed for two seconds. Then proceed to lower limit position  
selection display.  
VENTILATION OPERATION NOT LINKED WITH UNIT’S  
OPERATION  
[EXAMPLE]  
” (lit for two seconds)  
È
” (shows current setting)  
1 Press  
VENTI button.  
” is displayed, and the ventilation operation begins.  
8 Press or button (Selection of lower limit  
position)  
Stop  
Press  
VENTI button again.  
Select the lower limit position of louver.  
“position 1” is the most horizontal, and “position 6” is the most  
downwards.  
(horizontal)  
“position --” is to return to the factory setting. If you need to  
change the setting to the factory setting, use “position --”.  
NOTICE  
If no ventilator is connected, no operation can be performed by  
“  
“  
“  
“  
“  
“  
” (the most horizontal)  
pressing the ventilation button. (“ ” is displayed).  
(downwards)  
the position of the louver  
VENTILATION OPERATION LINKED WITH UNIT’S OPERATION  
” (the most downwards)  
1 Press  
button.  
” (return to the position of shipment)  
If a ventilator is connected, ventilation will operate automatically.  
1
” is displayed.  
9 Press  
position)  
SET button (Fixing of the lower limit  
Stop  
Upper limit position and lower limit position are fixed, and the set  
positions is displayed for two seconds, then setting is completed.  
After the setting is completed, the louver which was set  
moves from the original position to the lower limit position,  
and goes back to the original position again. (This operation  
is not performed if the indoor unit and/or indoor unit fan is in  
operation.)  
Press  
button again.  
[EXAMPLE] For Upper position 2, Lower position 6  
NOTICE  
No operation can be performed by pressing the ventilation button.  
Upper  
position  
(“  
” is displayed).  
[Example]  
Movable  
range  
” (lit for two seconds)  
È
È
Lower  
position  
FOR COMFORTABLE USE  
Note : If the upper limit position number and the lower limit  
position number are set to the same position, the louver  
is fixed at that position. And auto swing does not function.  
Clean the filter frequently  
Block direct sunlight and prevent draft  
The filter should be cleaned when  
the “Filter cleaning” message  
is displayed, and at the end of  
cooling and heating seasons.  
Block direct sunlight with blinds and curtains during cooling. Close  
the windows and doors except when ventilation is necessary.  
See page 14  
10 Press  
button.  
Louver adjusting mode ends and returns to the original display.  
NOTICE  
If the filter is clogged…  
Adjust the airflow properly  
The cooling/heating capacity will get reduced. Moreover it leads  
to waste of electricity and larger operation noise.  
It may cause failure.  
Do not expose yourself directly to the airflow for too long time. For  
small animals and plants, it is harmful as well.  
If you press  
RESET button during settings, the display will return to previous display. If you press  
button during settings, the mode will be ended and return to original display, and the settings that have not been  
completed will become invalid.  
If you feel cold underneath your feet during heating  
If the ceiling is so high that the warm airflow does not circulate  
underneath your feet, it is recommended to use a circulator.  
Consult your dealer for more detail.  
Dew may form and drop during cooling.  
When plural remote controllers are connected, louver position setting cannot be set by slave remote control.  
Do not block the inlet and outlet grilles of the  
indoor and outdoor units.  
Excessive load to the unit may cause failure.  
Stop the operation and turn the power supply  
off if there are any possibility of lightning  
Keep moderate room temperature  
Too much cooling or heating is not good for your health. It will also  
waste the electricity.  
strikes during a thunderstorm.  
Lightning strikes may lead to the failure of air-conditioning system.  
10  
INSPECTION DISPLAY, FILTER SIGN, AIR CONDITIONER NUMBER, STANDBY AND ROOM TEMPERATURE DISPLAY  
< WIRED REMOTE CONTROL >  
NAMES AND FUNCTIONS OF REMOTE CONTROL BUTTON <WIRELESS REMOTE CONTROL>  
WIRELESS REMOTE CONTROL  
• All displays are described in the liquid crystal display for explanation  
AIR FLOW display  
ROOM TEMP display  
Indicates set temperature.  
Indicates the status of swing louver. See page 13  
WHEN THE CHECK INDICATOR LIGHT (RED) FLASHES  
WHEN THE FILTER CLEANING MESSAGE IS DISPLAYED  
OPERATION MODE display  
Indicates selected operation with  
Error code  
J The air conditioner stops in the event  
any trouble occurs.  
The “  
” is displayed  
.
FAN SPEED display  
Indicates the selected airflow volume  
When the cumulative operation time  
reaches set amount number of hours in  
order to notify the time for cleaning.  
FILTER display  
Indicates for two seconds when FILTER  
button is pressed.  
At the same time, the check indicator  
light flashes in red and the error code is  
displayed in the ON timer display area and  
the following is displayed in the display area.  
ON-TIMER display  
Indicates when ON-TIMER is set. See page 12  
OFF-TIMER display  
JꢀClean the air filter.  
See page 14  
ON TIMER setting time display  
Indicates the ON-TIMER setting time.  
Nothing displayed when ON-TIMER is not set.  
See page 12  
Transmitter  
Sends signal to the air conditioner.  
Indicates when OFF-TIMER is set. See page 12  
“FILTER CLEANING” is displayed in the  
display area. It is displayed for one second  
every five seconds while the unit is running.  
It is always lit while the system stopped.  
“  
OFF-TIMER setting time display  
Indicates OFF-TIMER setting time. Indicates the  
current time when the OFF-TIMER is not set. See page 12  
Ç
(Air conditioner number)  
(lit for 2 seconds by turns)  
1
ON/OFF button  
Air conditioner No.  
After cleaning  
When this is pressed once, the AIR CON starts to  
operate and when this is pressed once again, it stops  
operating.  
AIR FLOW button  
Used to swing the louver. See page 13  
FAN SPEED button  
Every time this button is pressed, the mode is switched  
ERROR display when multiple indoor units are connected  
1 Press  
RESET button.  
as below.  
The cumulative operation hours is  
reset and the “FILTER CLEANING”  
message turns off.  
J If errors have occurred for all the connected air conditioning unit.  
Initially, the error display shows the formation of the air  
conditioning unit whose number is the lowest.  
HI MED LO  
FILTER button  
Used to reset (turn off) the filter sign.  
Press the button only after completing the filter cleaning.  
OPERATION MODE select button  
Errors of other air conditioning unit can be checked with the  
following procedure.  
Every time this button is pressed, displays switch as below  
(AUTO)  
(COOL)  
(HEAT)  
HOW TO DISPLAY AIR CON NO.  
(FAN) (DRY)  
1
Press AIR CON No. button.  
Enter AIR CON No. display mode.  
By operating AIR CON No. button, the number of the connected AIR CON  
unit and error codes of the units which have the record are displayed.  
ROOM TEMP/TIME SETTING button  
Sets room temperature by pressing  
Sets time when setting the time.  
or  
button.  
2 Press button.  
1
Press AIR CON No. button.  
AIR CON No. display mode appears  
and the AIR CON of the lowest number  
is displayed. Other displays all turn off.  
AIR CON No. and error codes are  
displayed in order from the lowest.  
ON TIMER button  
Sets ON TIMER operation. See page 12  
Press  
button to display in the  
TIMER CANCEL button  
Used to cancel the TIMER SETTINGS.  
OFF TIMER button  
Sets OFF TIMER operation. See page 12  
reverse order.  
1
2
2 Press button.  
TIME SET UP switch  
RESET switch  
3 Press  
button.  
AIR CON No. are displayed in order  
from the lowest. And error codes are  
displayed on the units which have  
suffered from failure in the past.  
Sets current time. See page 12  
Used to reset the microcomputer.  
Return to the AIR CON of the lowest  
number.  
NOTICE  
If the display of remote control has troubles, press RESET switch.  
1
2
WIRELESS REMOTE CONTROL HANDLING PROCEDURE  
J If errors have occurred for some of the connected AIR CON  
units.  
Only the units for which errors have occurred stop operating.  
The remote control shows the operating units.  
Press  
button to display in the  
reverse order.  
REPLACING THE BATTERIES  
HOW TO OPERATE  
If the following occurs, the batteries are exhausted. Replace with new ones.  
When the signal is transmitted, the AIR CON does not display reception.  
The display fades away or does not show anything.  
When you press each button of wireless remote  
control, directing properly to the receiving part of  
the air conditioner, the signal is transmitted. If the  
air conditioner receives the signal correctly, the light  
of operation indicator will flash.  
3 Press  
button.  
Return to the original display.  
1
Press AIR CON No. button.  
AIR CON No. display mode appears.  
1 Pull out the cover.  
JHow to set Radio Interference  
Prevention Setting  
It is possible to sent two way. Press  
NOTICE  
The AIR CON No. can be displayed without relation to its modes of  
operation, stop, forcible stop due to an error.  
Buttons other than “AIR CON No.” “” “ON/OFF” cannot be  
operated.  
Pay attention  
to the and  
marks  
ATTENTION  
2 Press button.  
2 Replace the old  
batteries with  
ACL  
AIR FLOW  
switch with  
button kept pressing or Insert the  
AIR CON No. are displayed in order  
from the lowest. And error codes are  
displayed on the unit in trouble.  
The operation of remote control must be performed  
slowly and steadily.  
new ones.  
AIR FLOW  
batterles with  
kept pressing.  
button  
(R03×2)  
Press  
reverse order.  
button to display in the  
ABOUT REMOTE CONTROL HOLDER  
1
2
The remote control can be mounted on the wall or  
pillar with the remote control holder.  
Slide from the upper part of the holder to place or  
take out the remote control.  
STANDBY DISPLAY  
ATTENTION  
3 Close cover.  
During the first operation after breaker power supply input or the  
Do not use old and new batteries  
mixed.  
Remove the batteries when the  
remote control is not used for a long  
time.  
3 Press  
button.  
recovery from power failure, “  
” can be displayed on  
Return to the AIR CON of the lowest  
number.  
4 Adjust the current time.  
See page 12  
the remote control for max 30 minutes.  
The refrigerant oil protection control is activated to protect the  
compressor and this isn’t a failure. Please wait till the display turns  
off.  
ATTENTION  
J
Do not place the remote control to the following  
places.  
JWhen any error occurs on the  
display,  
Press  
RESET  
switch with  
a ballpoint  
etc.  
NOTICE  
The recommendable effective period  
of a battery is about 6 to 12 months.  
(It depends on the usage.)  
The place exposed to direct sunlight or other  
strong lighting.  
If  
button is pressed once while errors are displayed,  
the errors display is turned off, and return to the stop mode.  
The place exposed to high temperature, for  
EXAMPLE, on the electric carpet or near a stove.  
If  
button is pressed again, the errors are displayed.  
The recommendable effective  
period is printed on the battery.  
This may be shorter due to  
manufacturing time of the unit.  
However the battery may be still  
working in order after expiry date.  
JIf the signal receiving part of the air conditioner is  
exposed to direct sunlight or other strong lighting,  
it may not receive the signal. In this case, shut  
out the sunlight or turn down the lighting.  
ROOM TEMPERATURE DISPLAY  
NOTICE  
If room temperature display setting is activated, room temperature is  
displayed on the remote control display. Then airflow display turns off,  
but airflow adjusting button is operative. Consult your dealer for settings.  
J
Do not place anything between the remote control  
and the unit.  
If the remote control is set as “Radio  
Interference Prevention Setting”, it  
returns to default when the batteries  
are removed. It is necessary to perform  
the next procedures again.  
J
Do not operate the remote control for other electric  
appliances which can be operated with a remote control.  
JHandle it with utmost attention.  
JRemove the batteries when the remote control is  
not used for a long time.  
When the batteries are inserted, each operation mode  
is set as the right figure. Adjust the current time referring  
to page 12. (The figure is for operation, and only the  
current time is displayed for stopping)  
J
Even if the remote control is not found or damaged,  
you can operate the air conditioner with itself. See  
“How to use the backup button” on page 13.  
Ç
The room temperature display  
11  
HOW TO USE < WIRELESS REMOTE CONTROL >  
ON – TIMER OPERATION  
< WIRELESS REMOTE CONTROL >  
HOW TO OPERATE  
Operation is started at the setting time.  
[EXAMPLE] If you would like to start the operation at AM 8:00  
Turn on the power supply of both indoor/outdoor units for six hours before starting the unit to protect the units. (The  
1 Press ON timer button.  
ATTENTION  
crankcase is conducted and the compressor is heated) Do not turn off the power supply. (The crankcase heater is conducted  
while the compressor is stopped, preventing failure of the compressor due to accumulation of liquid refrigerant by keeping the  
compressor warm.)  
ON timer display  
blinks.  
2 Press  
or  
button to adjust to AM 8:00.  
Displayed time will be changed by 10 minutes by pressing the buttons.  
The operation of remote control must be performed slowly and steadily.  
3 Press ON timer button.  
ON timer display  
the setting is completed.  
(Press within 60 seconds)  
changes from blinking to steady lighting and  
OPERATION  
2
1
TIMER/CHECK display lamp of the air conditioner is lit. (The receiving part of  
indoor unit)  
At AM 8:00, TIMER/CHECK display lamp turns off and the air conditioner  
will start operating.  
1 Press  
button.  
5
The operation display light (Green) turns on, and the operation starts.  
The setting status is displayed on the liquid crystal area on the remote  
control.  
1·3  
4
2
J Cancellation  
Press CANCEL button to turn off the TIMER display and timer is canceled.  
After TIMER setting, if ON/OFF button is pressed before the setting time,  
TIMER display turns off and the TIMER is canceled.  
3
J In case the ON timer is set while the air  
conditioner is in operation, it will be stopped  
and ready for restart at the setting time.  
2 Press MODE button.  
Operation mode  
Current operation mode is indicated with the  
operation mode icons.  
marks besides the  
J Time change  
Press ON TIMER button to set again.  
AUTO  
COOL  
HEAT  
DRY  
FAN  
The mode will change in the following order by pressing the button.  
(AUTO) (COOL) (HEAT)  
(FAN) (DRY)  
OFF TIMER OPERATION  
Operation is stopped at the setting time.  
[EXAMPLE] If you would like to stop the operation at PM 9:00  
3 Press TEMP button.  
1 Press ON/OFF button when the air conditioner stops.  
The air conditioner starts to operate.  
Set the room temperature by pressing  
or  
button.  
J Guideline of room temperature setting  
COOL ...............26 to 28°C  
OFF timer can be set only in case the air conditioner is in operation.  
4 Press FAN SPEED button.  
LO FAN SPEED can be changed in order.  
2 Press OFF timer button.  
DRY..................21 to 24°C  
HI  
MED  
OFF timer display  
blinks.  
1
HEAT ................22 to 24°C  
FAN...................TEMP setting is  
unnecessary  
3 Press  
or  
button to adjust to PM 9:00.  
5 Press AIR FLOW button.  
Displayed time will be changed by 10 minutes by pressing the buttons.  
Effective AIR FLOW direction  
see page 13  
3
Operation mode can be changed even  
when the unit stops.  
4 Press OFF timer button.  
AUTO mode operation............. Intermediate  
Cooling, humidifying................ Horizontal  
Heating.................................... Downwards  
OFF timer display  
changes from blinking to steady lighting and  
• If you operate under the same condition  
(operation mode, set temperature,  
airflow, louver) just follow step 1, no  
other operations are necessary. The  
conditions which were set previously are  
indicated on the remote control  
the setting is completed. (Press within 60 seconds)  
TIMER/CHECK display lamp of the air conditioner is lit. (The receiving part  
of indoor unit)  
At PM 9:00, TIMER/CHECK display lamp turns off and the air conditioner  
will stops operating.  
2·4  
Stop  
Press  
button  
J Cancellation  
Press CANCEL button to turn off the TIMER display and timer is canceled.  
After TIMER setting, if ON/OFF button is pressed before the setting time, TIMER display turns off and the TIMER is canceled.  
J Time change  
Press OFF TIMER button to set again.  
CURRENT TIME SETTING PROCEDURE  
The timer is set on the current time. Adjust the current time correctly at first of all.  
PROGRAM TIMER OPERATION  
[EXAMPLE] AM (morning) 8:00 setting  
By setting both ON timer and OFF timer, the settings turn into PROGRAM timer mode. Operation and stopping can be performed at the  
same time of each day by setting program timer once.  
1 Press TIME SET UP switch.  
1 Set ON timer.  
Press it with the tip of ballpoint etc. The time display blinks and can be set  
to the current time.  
Press ON timer button and set the time with  
Press ON timer button again.  
or  
button.  
2 Set OFF timer.  
2 Press  
or  
button to adjust to AM 8:00.  
Press OFF timer button and set the time with  
Press OFF timer button again.  
or  
button.  
Morning : AM After noon : PM  
2
The displayed time changes by 1 minutes when pressing the button.  
Both ON TIMER and OFF TIMER are displayed. The direction of arrow mark  
changes depending on the status of operation.  
If  
or  
button is pressed during the blinking, fast-forward or fast-  
1
2
backward can be done.  
1·3  
NOTICE  
(stop)  
(operating)  
In case the buttons are not pressed for 60 seconds, the displayed time is set as  
current time without step 3.  
J Cancellation  
J Changing the set time  
Whenever the CANCEL button is pressed, both ON and  
OFF timer display will be turned off and the PROGRAM  
timer mode will be cancelled. (Operation condition is kept as  
before the button is pressed.)  
Press OFF TIMER button or ON timer button to set again.  
3 Press TIME SET UP switch.  
NOTICE  
The display changes from blinking to steady lighting and the setting is  
completed.  
The same time cannot be set for OFF timer and ON timer.  
Whenever the ON/OFF button is pressed, both ON and OFF  
timer display will be turned off and the PROGRAM timer  
mode will be cancelled. The air conditioner stops operating.  
12  
HOW TO ADJUST THE LOUVER  
UP AND DOWN ADJUSTING  
< WIRELESS REMOTE CONTROL >  
CHECK INDICATION, FILTER SIGN  
< WIRELESS REMOTE CONTROL >  
J Ceiling suspended (FDE)  
Light for 0.5 second,  
How to move swing louver  
WHEN SHORT FLASHING LIGHT (wink out for 0.5 second ) IS SHED FROM THE TIMER/CHECK INDICATOR LAMP (YELLOW)  
Press AIR FLOW button when the air conditioner is in operation.  
The swing louver moves up and down, and the display moves too.  
There is something wrong with the air conditioner.  
Immediately after the timer/check indicator lamp flashed (light for 0.5 second, wink out for 0.5  
second), the air conditioner stops.  
NOTICE  
Address No. and error code are shown on the display on the indoor unit.  
The monitor display is turned off after the display time elapses.  
When nothing is displayed on the monitor, operate the remote control or press the BACKUP  
button to resume.  
The louver position which the display shows is not synchronized with the  
actual position when the louver is swinging. But this is not a failure.  
continuous movement of display  
Please contact your dealer and inform them “address No. and error code”, “symptom of  
To fix the position of the swing louver  
Recommended air frow direction  
position (when fixed)  
the trouble”, “air conditioner type” and “model name” etc.  
Check monitor  
Timer/check  
indicator lamp  
Press AIR FLOW button when the louver position indication comes to the position where you  
would like to fix it.  
Press the ON/OFF button to stay the air conditioner on the stop mode.  
Auto swing display stops at the position and then the swing louver stops and be fixed.  
A
NOTICE  
COOL  
DRY  
Light for 2 seconds,  
WHEN LONG FLASHING LIGHT (wink out for 1 second) IS SHED FROM THE TIMER/CHECK INDICATOR LAMP (YELLOW)  
Press the button and auto swing display stops immediately, then the swing louver stops  
later, but this is not a failure. (Auto swing display and the actual louver movement of the air  
conditioner are not synchronized)  
B
Clean the filter.  
AUTO  
C
See page 14.  
When cumulative running time reaches 120 hours, long flashing light (light for 2 seconds, wink  
out for 1 second) is shed from the timer/check indicator lamp (yellow).  
After cleaning of filter, press the FILTER button on the remote control to turn off the filter  
cleaning sign. (Press the button for one second or more)  
HEAT  
The swing louver movement during heat preparation  
When “heat preparation” is displayed, the position of the swing louver  
sets horizontal automatically. (The display of remote control keeps the set  
position)  
D
When heat preparation ends and normal operation starts, the position of  
the swing louver returns to the set position.  
Timer/check  
indicator lamp  
horizontal position  
NOTICE  
CAUTION  
The cumulative running time for filter sign can be changed.  
Consult your dealer for more information.  
Do not set the position of the swing louver downwards for a long time. Dew formation on the side panel may drop.  
(in case of FDE)  
J Ceiling cassette −4 way− (FDT)  
Ceiling cassette −4 way Compact (600×600mm) − (FDTC)  
FOR COMFORTABLE USE  
Light for 0.5 second,  
WHEN SHORT FLASHING LIGHT (wink out for 0.5 second ) IS SHED FROM THE TIMER/CHECK INDICATOR LAMP (YELLOW)  
See page 10  
Something is wrong with the air conditioner.  
Immediately after the timer/check indicator lamp flashes (light for 0.5 second, wink out for 0.5  
second), the air conditioner stops.  
TIMER  
CHECK RUN  
Address No. and error code are shown on the display on the indoor unit.  
The monitor display is turned off after the display time.  
When nothing is displayed on the monitor, operate the remote control or press the BACKUP  
button resume.  
Check monitor  
Timer/check  
indicator lamp  
Please contact your dealer and inform them “address No. and error code”, “symptom of  
the trouble”, “air conditioner type” and “model name” etc.  
Press the ON/OFF button to stay the air conditioner on the stop mode.  
Light for 2 seconds,  
WHEN LONG FLASHING LIGHT (wink out for 1 second) IS SHED FROM THE TIMER/CHECK INDICATOR LAMP (YELLOW)  
Clean the filter.  
See page 14.  
When cumulative running time reaches 120 hours, long flashing light (light for 2 seconds,  
wink out for 1 second) is shed from the timer/check indicator lamp (yellow).  
After cleaning of filter, press the FILTER button on the remote control to turn off the filter  
cleaning sign. (Press the button for one second or more)  
TIMER  
CHECK RUN  
Timer/check indicator lamp  
NOTICE  
The cumulative running time for filter sign can be changed. Consult your dealer for more information.  
13  
BACKUP BUTTON  
HOW TO MAINTAIN  
How to clean the Air Filter  
In time of battery exhausted, lost, trouble of remote control, the air conditioner can be operated with the BACKUP button on the indoor unit  
display part.  
Clean the filter frequently for economical operation.  
J Ceiling suspended (FDE)  
J Ceiling cassette −4 way− (FDT)  
Caution Before cleaning, stop the operation and turn off the power supply.  
Otherwise, it may lead to injury as fan inside rotates at high speed.  
Caution The stepladder used for removing and attaching the air filter must be fixed firmly.  
Otherwise, it may lead to injury due to overturn or fall.  
Ceiling cassette −4 way Compact (600×600mm) − (FDTC)  
Backup button  
Caution Be careful so that the dust does not get into your eyes when removing the air filter.  
Caution Do not operate the air conditioner while the air filter is removed.  
Piled up dust may lead to malfunction.  
TIMER  
CHECK RUN  
How to remove  
Follow the instruction mentioned below according to the indoor unit type.  
J Ceiling cassette −4 way− (FDT)  
Backup button  
• How to handle inlet grille/filter  
Removal  
<How to remove the grille>  
In case of FDE/FDT/FDTC  
ON/OFF  
1. Hold the stopper on the inlet grille (2 places) to the “OPEN”  
direction (arrow mark A), then pull down to open the grille.  
Remove the hook of the grille to dismount.  
Press backup button and leave it untouched for two seconds.  
The operation starts.  
c
<How to remove the filter>  
Press it again to stop the opearation.  
2. Push the hook of the grille in the indicated direction (arrow  
mark B) to release. Then slide the filter in the indicated  
direction (C) to remove.  
SETTING  
OPERATION MODE..........AUTO  
TIMER ...............................No setting  
AUTO SWING....................STOP (HORIZONTAL)  
FAN SPEED............................ HI  
SET TEMP.............................. 23°C  
Stopper  
<How to mount the filter>  
1. Ensure the right side and orientation of the filter and insert it to  
the arrow direction (D) so that the notch on the filter is hooked  
on the hook on the grille (2 places).  
2. Align the hole on the filter with the hook on the grille (E 2  
places) and push it securely until the filter is caught by the  
hook.  
d
e
Hook  
The direction of filter removal  
Mounting  
Hook  
<How to mount the grille>  
1. Hang the hook on the hole on the panel. (The hook on the  
grille can be hanged any hole on the panel.)  
2. After the grille is hanged, close the grille while the stopper  
on the grille (2 places) is kept pressed to “OPEN” direction.  
When the grille comes to the original position, release the  
stopper to hold the grille.  
Hook  
Hook  
Caution Mount the filter to the grille securely.  
Otherwise, it may lead to decreased efficiency due  
to leakage of flow from the gap.  
Direction for closing  
Caution Mount the grille securely.  
Otherwise, it may fall.  
Holes for hook  
Caution When the stopper is deformed or damaged,  
repair or replace without delay.  
Otherwise, the grille may fall.  
14  
TROUBLE SHOOTING  
HOW TO MAINTAIN  
Check the following items before requiring service.  
J Ceiling cassette −4 way Compact (600×600mm) − (FDTC)  
THE UNIT DOES NOT WORK AT ALL  
1. Slide the inlet grille levers in the direction of the arrow ( ), and  
open it downwards.  
Is the power supply switch  
turned off?  
Is there a blackout or is the  
fuse blown?  
Is the leakage breaker  
activated?  
Is sunlight or other strong  
illumination striking the  
receive unit? (wireless unit)  
ON  
Dangerous. Immediately turn  
off the power supply switch,  
and contact your dealer.  
OFF  
2. Release the inlet grille stopper.  
POOR COOLING OR HEATING  
Is the swing louver  
POOR COOLING  
NO AIRFLOW AT HEATING  
Is the air filter clogged?  
Are there any obstacles  
blocking the air inlet  
and outlet grill?  
Is the direct daylight  
coming into the room?  
Is the unit in the  
heating preparation  
mode?  
Hooks  
Hooks  
horizontal (during  
3. Pull the filter towards you.  
heating)?  
If the swing  
louver is  
horizontal, the  
airflow may not  
reach down to  
the floor.  
Are there any  
unexpected heat  
sources in the  
room?  
See page 16  
4. When the filter is put in place, insert the filter into the hooks on  
the inlet grille, and be sure to return the stopper to its original  
position.  
Are there too many  
people in the room?  
5. When putting the inlet grille back in place, slide the levers in the  
opposite direction and check to be sure that the grille does not  
come open.  
If, after checking the items above, the air conditioner still does not operate normally or in the next cases, stop operating and contact your dealer.  
If the fuse and breaker blow frequently.  
If water drips at cooling/dehumidifying operation. If the operation or operation noise is abnormal.  
Stopper  
If the check indicator light flashes.  
The phenomena mentioned below is not malfunction.  
J Ceiling suspended (FDE)  
1. Slide the lever of the inlet grille 2. Pressing the inlet grille, press the filter  
The air conditioning system Sounds of rustling or gurgling may be heard when the operation is started, when the compressor is activated/  
sounds as if water is  
draining from it.  
deactivated during operation, or when the operation is stopped. These are the sounds of the refrigerant  
flowing through the system.  
to remove it from the tab and pull it  
backward (  
downwards.  
direction) and open it  
downwards.  
Sounds of rustling or  
These sounds can be heard when the air conditioning system is performing automatic control.  
gurgling may be heard from  
a stopped indoor unit.  
The supply air from the  
indoor unit smells bad.  
The supply air from the indoor unit may smell bad if the smell of cigarettes, cosmetics and/or furniture has  
saturated the air conditioning system.  
White vapor is generated  
from the indoor unit during  
operation.  
White vapor may be generated during operation if the system is used in environment where oils and fats are  
frequently used, such as in restaurants. In this case, consult the dealer and clean the heat exchanger.  
tabs  
Air filter  
The operation switched to  
fan operation during cooling the heat exchanger. The operation will soon return to cooling operation.  
operation.  
The operation may switch to fan operation automatically in order to avald frost being built up on the surface of  
When mounting, press the lever forward  
untill it snaps.  
When morrting, snab the filter into the  
tabs of inlet grille.  
The indoor fan does  
not stop even when the  
operation is stopped in  
heating mode.  
The indoor unit fan may continue operating for 40 seconds in order to remove remaining heat in the indoor  
unit.  
J Duct connected −High static pressure− (FDU, FDUS)  
J Duct connected −Middle static pressure− (FDUM)  
CAUTION  
Do not turn off the power supply until the fan stops.  
Air filter is attached when the air conditioner is installed, so consult your dealer about  
how to remove or clean it.  
The air conditioning system During the first 3 minutes after stopping operation, it is not possible to perform cooling, dehumidifying or  
cannot start operating again heating operation even if the ON/OFF button is pressed to indicate “operation.This is because a circuit for  
immediately after stopping. protecting the compressor is activated (the fan is operating during this period).  
No air comes out during  
dehumidifying operation.  
The airflow volume cannot  
be changed.  
During dehumidifying operation, the fan speed is automatically controlled in low speed/stop cycle in order to  
avoid both drastic temperature drop and humidity rise.  
How to clean  
Wash away for cleaning. If it is not so dirty, tap it or use  
cleaner.  
If it is very dirty, dissolve some neutral detergent in lukewarm  
water (approximately 30°C), rinse the filter with it and wash  
the detergent away completely.  
MAINTENANCE OF THE UNIT  
1
Clean the unit by wiping with a piece of soft and dry cloth.  
If the unit is very dirty, wipe it with a piece of cloth wet with  
neutral detergent dissolved in lukewarm water and wipe it  
off with clean water.  
The swing louver moves  
without any operation.  
The swing louver automatically swings twice when the power supply switch is turned on. This is not a trouble.  
The louveralso moves automatically to the horizontal position when “PREPARATION OF HEATING” is  
displayed.  
AT THE END OF THE PERIOD OF USE  
(after a long period of use)  
Make sure to turn off the power supply.  
The air conditioner consumes several tens of watts  
electricity even if it is stopped.  
The outdoor unit discharges Water or steam is discharge during defrosting operation which removes frost built up on the surface of the  
water or steam during  
heating operation.  
2
After the air filter is dried, mount it to the main body and press  
RESET button.  
heat exchanger in the outdoor unit in heating mode.  
ATTENTION  
The outdoor unit fan is not  
running even when the  
system is in operation.  
The fan speed is automatically controlled according to the ambient temperature. It may be stopped in high  
ambient temperature in case of heating, and in low ambient temperature in case of coding. Also, the fan is  
stopped during defrosting operation.  
Do not dry by exposing the air filter to the direct sunlight or  
using fire. Otherwise, the filter may be damaged.  
Do not operate the air conditioner with the filter removed.  
Otherwise it may lead to trouble.  
• Clean the air filter and mount it.  
• Clean the indoor/outdoor units.  
CAUTION  
The fan will suddenly begin to operate even if it is stopped. Do not insert finger and/or stick.  
AT THE BEGINNING OF THE PERIOD OF USE  
(after a long unused period)  
Make sure that there is no object blocking the airflow  
around the inlet and outlet grille of the indoor/outdoor unit.  
Inspect the air filter. If it is dirty, clean and mount it.  
• Turn on the power supply button for 6 hours before  
starting the operation.  
15  
TROUBLE SHOOTING  
The phenomena mentioned below is not malfunction.  
SETTING TO DISABLE BUTTON OPERATION <Wired remote control>  
The following button operations can be disabled. If the button is pressed, “  
” is displayed provided the button is disabled, and  
NOTICE  
returns to original display. Consult your dealer for “  
” setting.  
A
button  
TEMP button  
LOUVER button  
MODE button  
FAN SPEED button  
TIMER button  
Slapping sounds are heard. These sounds are generated when plastic components are expanded or shrunk by the heat and rubbed with  
each other.  
B
C
Hissing sounds are heard  
when the operation is  
stopped or during defrost  
operation.  
These sounds are generated when the refrigerant valve inside the air conditioning system is activated.  
D
E
F
The air conditioner starts  
operation automatically as  
soon as the power supply is  
turned on.  
In case the automatic restart function is enabled, and when the power supply recovers, the system restarts  
INSTALLATION, RELOCATION, AND INSPECTION MAINTENANCE  
the operation automatically as same condition as before power supply is cut.  
See below  
Please observe the following points in order to use the air conditioner in a safe and comfortable manner.  
Make sure to request your dealer for installation, do not attempt to do by yourself.  
The setting temperature  
cannot be changed (the  
setting temperature display  
flashes).  
If changing the set temperature is prohibited on the remote control, it is not possible to change the  
temperature setting even or 5 is pressed. See right  
INSTALLATION LOCATION  
Is the system installed in a well-ventilated place?  
Are there any obstacles? If so, it leads to the decrease of the efficiency and the increase of operation noise.  
In case of wirless remote  
control, the unit does not  
operate with the inspection  
display light on the indoor  
unit flashing even though  
any button on the remote  
control is pressed.  
In case the system is controlled by the other centralized remote control and it forbids operating the system  
from the remote control, it is not possible to operate by the remote control.  
Avoid the place where cool/warm air and operation noise cause problems to your neighbors.  
ELECTRICAL WORK  
Caution : Make sure to perform grounding work  
Do not connect the ground wire to any gas pipe, water pipe, or wires of lightning conductors and telephones. If the ground work is not good, it  
may lead to electric shock.  
Even if the wired remote  
Is not “central controlling” or “center” displayed?  
Caution : A leakage breaker is necessary depending on the installation environment.  
control is operated, “central If controlled with a separately purchased center console etc., the unit cannot be operated by the remote  
control” light only flashes  
and doesn’t operate.  
If it is not mounted there, it may lead to electric shock.  
control.  
Only qualified specialists of electrical and grounding work can do these works according to “electric equipment technical standards”.  
Is the wiring designated for the air conditioner?  
Is the remote control mounted correctly?  
In the case of exposed wiring, is the wiring fixed with the attached screw?  
Is the attached remote control clamps used for fixing the remote control cord?  
Is the remote control mounted at a height where children cannot reach?  
PREPARATION OF HEATING  
CASES WHEN “  
(PREPARATION OF HEATING)” IS DISPLAYED  
RELOCATION  
(PREPARATION OF HEATING)” is displayed in the remote control display area in the following cases.  
For wireless devices, the run/check display lamp on the main body display unit will flash green.  
Setting temperature and preparation of heating are displayed on the wired remote control.  
Warning : Make sure to consult a dealer or specialist if it is required to relocate and reinstall the air conditioning system.  
If the air conditioning system is installed incorrectly, water leakage, electric shock and/or fire may occur. Note that an installation fee will be  
charged for relocation and installation.  
At Starting Heating Operation  
In order to prevent cool air from blowing out, the airflow into the room may be stopped depending on the room temperature at the  
start of heating operation. please wait for a while and the operation automatically switches to the normal heating operation.  
At defrost operation (during heating operation)  
INSPECTION MAINTENANCE  
When frost may easily formed on the outdoor unit, the heating operation automatically is stopped (both indoor/outdoor unit  
stop fan operation) for approximately 5 to 10 minutes per hour and defrosting is operated. After the defrosting is complete, the  
operation automatically switches back to the normal operation.  
Normally the efficiency of the air conditioning system will become lower after a while, because dirt accumulates inside the system. This occurs gradually in  
around 3 years of use , depending on the condition of use and surrounding enviroment. It is thus necessary to conduct inspection maintenance in addition  
to regular maintenance. We recommend you to consult the dealer from whom you purchased the system and make a contract for periodical inspection.  
(charged).  
HEATING OPERATION  
Heat pump type  
OPERATION RANGE  
Heat pump type heating applies the mechanism that draws the heat from the outside air to warm up the room by means of the refrigerant.  
Defrost operation  
During heating with a heat pump type air conditioner, frost will be formed on the outdoor unit if the temperature outside the room drops. If left alone, the  
heating efficiency decreases. In order to deal with this, the operation is automatically switched to defrost operation to remove the frost. During the period,  
the airflow of indoor/outdoor unit is stopped and “heating defrost” is displayed.  
Outer air temperature and heating capacity  
The heating efficiency of heat pump type air conditioner decreases as the outside temperature becomes lower. If the capacity of air conditioner for heating  
is not sufficient, please use other heating device.  
Time required until the room temperature increases  
A heat type air conditioner circulates warm air to warm the entire room, so it takes a while to rise up the room temperature. It is recommended to start  
operation earlier on a very cold day.  
When room temperature adjusting device operates during heating  
If room temperature rises and the room temperature adjusting device is activated, the airflow becomes automatically low. When the room temperature  
drops, it switched back automatically to the normal operation.  
Please use the system in the following operation range. If the system is operated outside this range, the protection controls may be activated to prevent  
CAUTION  
malfunction.  
Condition  
Operation  
Room temperature  
Temperatureoutside the room  
Approximately -5 to 43°C  
Temperatureoutside the room  
Approximately  
21 to 32°C  
Long continuous operation under  
approximately 21°C may lead to malfunction  
due to dewfall  
Approximately 80% or less  
Long operation under high humidity may leads to  
waterdrop or smoky vapor at the supply air grille.  
Cooling  
operation  
Dry operation  
Approximately  
-10 to 21°C  
If outside air temperature becomes low, the  
heating efficiency is lowed andthe heating  
becomesdifficult.  
Approximately  
27°C or less  
Heating  
operation  
(Note) Operation range may differ depending on models .Please check the catalog.  
AUTO RESTART <WIRED REMOTE CONTROL>  
NOTICE  
The remote control can apply an auto restart function which is disabled at the factory setting. Consult your dealer.  
What is auto restart  
When a power failure occurs or the power supply is turned off, the function allows the system to automatically resume operation with the remote control  
setting made set before the power failure when the power supply recovers. If the system is stopped before power failure it remains stopped after the power  
recover.  
Note that in the following cases it is needed to set again with the remote control.  
Timer setting is cancelled. But the sleep timer recovers after power failure recover. Weekly timer settings, however, recover with all days holiday setting.  
A
And time setting returns to default. To return to original setting, after time setting, execute “holiday cancel”.  
Louver stops at the horizontal position.  
B
CAUTION  
Make sure to stop the operation before turning off the power supply when the auto restart function is enabled. (If the power supply is turned off while the  
system is operating, the indoor unit fan will start immediately when the power supply is turned on. In addition, the outdoor unit starts operating 3 minutes  
after the power supply is turned on.)  
16  
AIR-CONDITIONING & REFRIGERATION SYSTEMS HEADQUARTERS  
3-1, Asahi, Nishibiwajima-cho, Kiyosu, Aichi, 452-8561, Japan  
MITSUBISHI HEAVY INDUSTRIES EUROPE, LTD.  
AIR-CONDITIONER DIVISION  
3rd Floor Thavies Inn House 3-4 Holborn Circus London EC1N 2HA, ENGLAND  
Phone: 44(0)20 7842 8171  
Fax: 44(0)20 7842 8104  
MITSUBISHI HEAVY INDUSTRIES AUSTRALIA, PTY.LTD.  
81 Railway Street, Rockdale, NSW 2216, Australia  
Phone: 61(0)2 9597 7977  
Fax: 61(0)2 9597 7304  

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