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In case of failure
Warning:
• Never remodel the air conditioner. Consult your dealer for any repair or serv-
ice. Improper repair work can result in water leakage, electric shock, fire, etc.
• If the remote controller displays an error indication, the air conditioner
does not run, or there is any abnormality, stop operation and contact
your dealer. Leaving the unit as it is under such conditions can result in
fire or failure.
• If the power breaker is frequently activated, get in touch with your dealer.
Leaving it as it is can result in fire or failure.
• If the refrigeration gas blows out or leaks, stop the operation of the air
conditioner, thoroughly ventilate the room, and contact your dealer. Leav-
ing the unit as it is can result in accidents due to oxygen deficiency.
When the air conditioner is not to be used for a long
time
• If the air conditioner is not to be used for a long time due to a seasonal
change, etc., run it for 4 - 5 hours with the air blowing until the inside is
completely dry. Failing to do so can result in the growth of unhygienic,
unhealthy mold in scattered areas throughout the room.
• When it is not to be used for an extended time, keep the [power supply]
turned OFF.
If the power supply is kept on, several watts or several tens of watts will
be wasted. Also, the accumulation of dust, etc., can result in fire.
• Keep the power switched ON for more than 12 hours before starting op-
eration. Do not turn the power supply OFF during seasons of heavy use.
Doing so can result in failure.
1.3. Disposing of the unit
Warning:
When you need to dispose of the unit, consult your dealer. If pipes are re-
moved incorrectly, refrigerant (fluorocarbon gas) may blow out and come
into contact with your skin, causing injury. Releasing refrigerant into the
atmosphere also damages the environment.
2. Names and functions of various parts
Attachment and detachment of filter
[Fig. A] (P.4)
3. How to operate
Before starting operation
• Start running after the “PLEASE WAIT” display has disappeared. The “PLEASE
WAIT” display briefly appears on the room temperature display (max. 3 min-
utes) when the power is turned on and after a power failure. This does not
indicate any failure of the air-conditioner.
• The choice of indoor unit operation mode is limited by the operation status of
the outdoor unit to which a given indoor unit is connected. If an outdoor unit
and some of the indoor units that are connected to the outdoor units are al-
ready operating in the cooling mode, for example, only the cooling mode is
available for the rest of the units in the same group. If a different mode is re-
quested, the symbol that corresponds to the requested mode will blink, notify-
ing the user that the mode is currently unavailable. The same is true for the dry
and heating mode. This restriction, however, does not apply to the models that
support a simultaneous cooling/heating function.
• The outdoor units stop when all the indoor units connected to the counterpart
outdoor units stop.
• During heating operation, even if the indoor unit is set to operation while the
outdoor unit is in defrosting operation, operation starts after the defrosting op-
eration of the outdoor unit has ended.
3.1. ON/OFF
Start an operation
1. Press the B [ON/OFF] button
P Operation lamp lights up and operation starts.
Stop an operation
1. Press the B [ON/OFF] button again
Operation lamp goes off and operation stops.
• Once the Buttons have been set, pressing of the [ON/OFF] Button only can
repeat the same operation thereafter.
• During operation, the operation lamp above the [ON/OFF] button lights up.
Caution:
Even if the [ON/OFF] Button is pressed immediately after the operation is
once stopped, operation is not restarted for about 3 minutes. This function
protects the machine. It automatically starts operation after the lapse of
approximately 3 minutes.
3.2. Selecting operation
When selecting operation
1. Press the 3 [Mode (Back)] Button
Consecutive press of the selecting operation Button switches the operation
over to E “
COOL”, “ DRY”, “ FAN”, (“ AUTO”), and (“ HEAT”). For
the contents of operation, check the display.
For cooling
Press the 3 [Mode (Back)] Button and bring up the “ COOL” display.
For dry
Press the 3 [Mode (Back)] Button and bring up the “ DRY” display.
• The indoor fan turns to the low-speed operation, disabling the change of fan
speed.
• Dry operation cannot be carried out at room temperature of less than 18 °C.
For fan
Press the 3 [Mode (Back)] Button and bring up the “ FAN” display.
• The fan operation functions to circulate the air in the room.
• The temperature of the room cannot be set by fan operation.
Caution:
Never expose your body directly to cool air for a long time. Excessive expo-
sure to cool air is bad for your health, and should therefore be avoided.
Caution:
• In removing the filter, precautions must be taken to protect your eyes
from dust. Also, if you have to climb up on a stool to do the job, be careful
not to fall.
• Turn off the power supply when the filter is changed.
ON/OFF
CHECK
CLEAR
MENU
ON/OFF
TEST
TEMP.
CLOCK
OPERATION
BACK DAY
MONITOR/SET
1
E
2
3
68
B
P
7
FILTER
ERROR CODE
TIME
ON
OFF
Hr
AFTER
SUN MON TUE WED THU FRI SAT
TIMER
AFTER
ONLY 1Hr.
˚C˚F
WEEKLY
SIMPLE
AUTO OFF
FILTER
FUNCTION
˚C˚F
WT51207X01_en.p65 6/8/07, 2:34 PM6