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35

The indicator panel will change each time you press
the DISPLAY button in the following manner.

The room
temperature and
POWER MONITOR
are displayed.

The outdoor
temperature and
POWER MONITOR
are displayed.

No display.

When the room temperature or the outdoor temperature is displayed, the POWER MONITOR
will light up in 4 levels for COOL and HEAT modes (3 levels for DRY mode), to indicate the
operation power. When the air conditioner is operating at maximum power in the COOL and
HEAT modes, "POWER" will light and "ECO" will turn off on the indicator panel.

• The displayed temperatures are rough estimates and may vary from the actual tempera-

tures.

• Temperature display ranges

Room temperature: 0

°C ~ 40°C (   is displayed when less than 0°C and   when higher

than 40

°C)

Outdoor temperature: -9

°C ~ 45°C (    is displayed when less than -9°C and    when

higher than 45

°C)

•

 is displayed during the first 120 seconds of operation while the temperatures are being

detected. (Temperature detection may more than 120seconds when other unit(s) is/are
already being operated.)

•

 is displayed for 5 seconds when the unit is not in operation.

DISPLAY

FULL

POWER

Room Temp. 
Lamp

Outdoor Temp.
Lamp

temperature
Indiactor

POWER 
MONITOR

Room Temp. Lamp

Outdoor Temp. Lamp

temperature
Indiactor

POWER MONITOR

(AY-XPM7CR/AY-XPM9CR/AY-XPM12CR)

(AY-XM7CR/AY-XM9CR/AY-XM12CR)

36

 ".

• The red OPERATION lamp ( 

The red OPERATION lamp ( 

Press the SELF CLEAN button when the unit is not
operating.

  ) and the blue

PLASMACLUSTER lamp on the unit will light up.

• The unit will stop operation after forty minutes.
• The remaining operation time will be indicated on the

TEMPERATURE INDICATOR of the indoor unit in
minute decrements.

Press the SELF CLEAN button.
Or, turn the unit off by pressing the ON/OFF button.

• The red OPERATION lamp ( 

  ),the blue

PLASMACLUSTER lamp and the TEMPERATURE
INDICATOR on the unit will turn off.

When the unit is in operation, press the
PLASMACLUSTER button to select the mode.

PLASMACLUSTER AUTO

AIR CLEAN

REFRESHING

CANCEL

• In the AIR CLEAN operation, the blue

PLASMACLUSTER lamp on the unit will light up.

• In the REFRESHING operation, the green

PLASMACLUSTER lamp on the unit will light up.

Press the PLASMACLUSTER button until
PLASMACLUSTER symbol on the remote control
display goes off.

• The PLASMACLUSTER lamp on the unit will turn off.

:

• You cannot set the temperature, fan speed, air flow direction or timer setting during the SELF

CLEAN operation.

SWING

CLEAN

FAN

SET/C

AM

• Setting of the PLASMACLUSTER operation will be memorized and will operate in the same

mode, the next time you turn on the air conditioner.

• To turn off the PLASMACLUSTER lamp, press the DISPLAY button.
• When the PLASMACLUSTER button is pressed while the unit is not operating, the

PLASMACLUSTER operation will be performed without accompanying air conditioning mode
(eg. HEATING or COOLING).The mode symbol of the remote control will go off and the fan
speed can not be set AUTO. At this time, you may feel HEATING is performed with units in other
rooms. Indoor fan will decrease its rotating speed and will ture ON and OFF depending on the
room temperature.

SWING

CLEAN

FAN

MODE

SET/C

1h

AM

AUTO

37

The ionizer inside the air conditioner will release cluster ions, which are
collective mass of positive and negative ions, into the room.
The cluster ions reduce airborne mold fungus and deodorize/decompose odor-
causing molecules.

Cluster ions released into the air will reduce airborne mold fungus and deodorize/decompose
odor-causing molecules.

It is said that plenty of negative ions exist in places such as waterfalls or forests in natural
environment. In this operation mode, negative inos will be released in an increased rate, in order
to bring the room air close to this condition.

Dust sensor and odor sensor will detect foul air in the room.
Air Clean Operation will be performed for one minute after the air conditioner is operated to
detect foul air.
Air Clean Operation and Refreshing Operation will be selected  and be performed automatically
depending on the air foul degree.
Air Clean Operation will be performed when the air is detected to be foul, Refreshing Operation
will be performed when the air is clean.

Plasmacluster Operation will be performed with FAN or HEAT mode, in order to reduce the
growth of mold fungus, and dry inside of the air conditioner unit.
Utilize the operation at seasonal change over terms.
Mold fungus already grown can not be eliminated by this operation.

Ionizer

Cluster ions

Mold fungus
Odor

38

2-1 FREQUENCY CONTROL
(1) AC current peak control

Cooling MODE

Heating MODE

14.0A

14.0A

(2) Prevention control of outdoor heat exchanger

overheating
If the temperature of the outdoor heat exchanger
exceeds the overheating prevention line 1or 2
during cooling, the operating frequency is
lowered by approximately 5 to 15Hz.
After that, the frequency is lowered
approximately 5Hz once every 60 seconds or
approximately 15Hz once every 120 seconds.
When the temperature of the outdoor heat
exchanger goes below the overheating
prevention clear line, the frequency is raised by
approximately 5Hz once every 60 seconds, and
normal operation is restored.
If the frequency is lowered to minimum
frequency without the temperature of the outdoor
heat exchanger decreasing and this condition
lasts for 1 minute, the compressor will be
stopped.

Overheating Prevention line 1

Overheating Prevention line 2

Lower 5Hz once every 60 seconds

Lower 15Hz once every 120 seconds

Overheating Prevention clear line

55˚C

57˚C

54˚C

(3) Prevention control of compressor overheating

If the temperature of the compressor exceeds
approximately 108ÅãC, the operating frequency
is lowered approximately 5Hz.
After that, the frequency is lowered
approximately 5Hz once every 60 seconds.
When the compressor temperature drops below
approximately 108ÅãC, the frequency is raised
approximately 5Hz once every 60 seconds, and
normal operation is restored.
If the frequency is lowered to minimum
frequency without the temperature of the
compressor decreasing,and this condition lasts
for 1 minute, the compressor will be stopped.

(4) Prevention control of indoor heat exchanger

overheating

< for 2 minutes since 2room ON 1room ON >
If the temperature of any of indoor heat exchangers
exceeds the overheating prevention line 1 or 2
during heating, the operating frequency is lowered to
minimum frequency.
When the temperature of all of indoor heat
exchangers go below the overheating prevention
line 1, the frequency is raised by approximately 5Hz
once every 60 seconds, and normal operation is
restored.
If the condition that the frequency is minimum lasts
for 1 min, the compressor will be stopped.

< when normal >
If the temperature of any of indoor heat exchangers
exceeds the overheating prevention line 1 or 2
during heating, the operating frequency is lowered
by approximately 5 to 15Hz.
After that, the frequency is lowered approximately
5Hz once every 60 seconds or approximately 15Hz
once every 90 seconds.
When the temperature of all of indoor heat
exchangers go below the overheating prevention
line 1, the frequency is raised by approximately 5Hz
once every 60 seconds, and normal operation is
restored.
If the condition that the frequency is minimum lasts
for 1 min, the compressor will be stopped.

DC over current detection, AC over current
detection
To protect against over current due to sudden
change in load, the compressor is stopped if 55A
DC is exceeded in the DC section. If the set
value of AC current is exceeded in the AC
section, the compressor is stopped. 90 seconds
after the compressor has been stopped, another
starting try will be made.
Three retries are allowed. On the fourth retry, a
complete stop request signal is sent to the
indoor unit, and the outdoor unit will remain
stopped until the indoor operation is stopped.
DC over current is detected by the power
module. AC over current is detected by CT1, on
the outdoor PWB.

The set value of AC current

16.0A

Cooling mode

Heating mode

16.0A

When 
ON

When 
OFF

Overheat 
prevention line 2

Overheat 
prevention line 1

Overheat 
prevention line 2

Overheat 
prevention line 1

~ 25Hz

25 ~ 
35Hz

35 ~ 
95Hz

95Hz ~

47.0˚C

45.0˚C

60.0˚C

57.0˚C

54.0˚C

52.0˚C

63.0˚C

59.0˚C

56.0˚C

54.0˚C

64.0˚C

60.0˚C

55.0˚C

53.0˚C

62.0˚C

58.0˚C

If the temperature of the compressor exceeds
113 ˚C, the compressor is stopped.
In this case, the outdoor fan is not stopped until the
temperature of compressor drops below 99ÅãC.
In 90 seconds after the compressor is stopped, if the
temperature is below 90ÅãC, another starting try will
be made. Three retries are allowed. On the fourth
retry, a complete stop request signal is sent to the
indoor unit, and the outdoor unit will remain stopped
until the indoor operation is stopped.