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OPERATING MANUAL

 

4  Remote controller display

In this section, all the possible indicators are displayed for description. 
In actual operation, the display is linked with the button operation, and 
only shows the necessary indicators for each setting.

5 POWERFUL 

button

The product will operate at maximum power, which is convenient 
when you want to quickly cool down or warm up the room.
When you press the button to start the POWERFUL operation, the 
indoor unit emits 3 short beeps.
POWERFUL operation is automatically turned off in the following 
situations:
• Adjusted room temperature reached to the de

fi

 ned temperature in 

temperature setting in COOL, DRY, or HEAT mode.

• 20 minutes have passed after 

fi

 nishing the POWERFUL operation 

mode setting.

It is not turned off automatically during setting of the POWERFUL 
operation.

Notes:

• The air

fl

 ow direction and the fan speed are controlled automatically.

• This operation cannot be performed simultaneously with ECONOMY 

operation.

To return to normal operation, press the button again. Then the indoor 
unit emits 2 short beeps.

6 10 

°

C HEAT button

Starts 10 °C HEAT operation that maintains the room temperature at 
10 °C so as to prevent the room temperature to drop too low.
When you press the button to start the 10 °C HEAT operation, the 
indoor unit emits 2 short beeps and the ECONOMY indicator (green) 
turns on.

Notes:

• In 10 °C HEAT operation mode, only vertical air

fl

 ow direction can be 

adjusted by using 

 button.

• HEAT mode will not be performed if the room temperature is warm 

enough.

• In multi-type air conditioning system, if other indoor unit is in HEAT 

mode, the temperature of the room where 10 °C HEAT operation is 
performed will rise. When performing 10 °C HEAT operation, all the 
indoor units should be run in 10 °C HEAT operation mode.

To return to normal operation, press the Start/Stop button.
The ECONOMY indicator turns off.

7 Signal 

transmitter

Aim to signal receiver of the indoor unit properly.
• Signal transmit indicator   on the remote controller display shows 

that signal from the remote controller is being transmitted.

• Operating range is approximately 7 m.
• You will hear a beep if the transmitted signal has been sent properly.  

If there is no beep, press the button on the remote controller again.

8 FAN 

button

Controls the fan speed.

(AUTO)

(HIGH)

(MED)

(LOW)

(QUIET)

• When AUTO is selected, the fan speed is automatically adjusted 

according to the operation mode.

9 SWING 

button

Starts or stops automatic swing of the vertical air

fl

 ow direction louver.

• Each time you press the button, the vertical air

fl

 ow direction louver 

swings as follows:

COOL, DRY, or FAN 

mode

HEAT or FAN mode

1

2

3

7

6

5

4

Notes:

• SWING operation may stop temporarily when the fan in the unit is 

rotating at very low speed or stopping.

• In FAN mode, either of swing direction 1 

 3 or 4 

 7 is performed 

in accordance with the vertical air

fl

 ow direction previously set before 

you start the SWING operation.

Remote Controller Overview and Operations

10 SET 

button

Adjusts the vertical air

fl

 ow direction.

See page 5

11  SLEEP timer button

Activates the SLEEP timer that helps you to fall asleep comfortably 
with gradual temperature control.

12  Timer CANCEL button

Cancels the set timer.

13 RESET 

button

When you press the “RESET” button, press it gently by using the tip 
of a ballpoint pen or other small object in correct direction as shown in 
this 

fi

 gure.

RESET

See page 3

14  CLOCK ADJUST button

Cancels the set timer.

See page 5

15  OFF timer button

Activates the OFF timer.

See page 5

16  ON timer button

Activates the ON timer.

17 SELECT 

button

Used for adjusting the clock or timer.

See page 3

18  OUTDOOR UNIT LOW NOISE button

Starts or stops OUTDOOR UNIT LOW NOISE operation that lowers 
noise generated from the outdoor unit by cutting down the rotation 
number of the compressor, and suppressing the fan speed till they 
are suf

fi

 ciently reduced.

Once the operation is set, the operation setting is preserved until you 
press this button again to stop the operation, even if the indoor unit 
operation is stopped.
OUTDOOR UNIT LOW NOISE indicator 

 on the remote 

controller display shows that the unit is in OUTDOOR UNIT LOW 
NOISE mode.

Notes:

• This operation cannot be performed simultaneously with following 

modes:

FAN mode, DRY mode, POWERFUL operation mode

• This operation cannot be performed on a multi-type air conditioner.

If this mode is unintentionally set on a multi-type air conditioner, 
cancel the setting by pressing the button. Otherwise, the signal of 
the remote controller cannot be transmitted properly.

19  ECONOMY button

Starts or stops ECONOMY operation that saves more electricity 
consumption than the other operations with a conservative adjustment 
of the room temperature.
When you press the button, the ECONOMY indicator on the indoor 
unit turns on.
• In COOL or DRY mode, the room temperature will be adjusted at a 

few degree higher than the de

fi

 ned temperature. 

  In HEAT mode, the room temperature will be adjusted at a few 

degree lower than the de

fi

 ned temperature.

• Especially in COOL or DRY mode, you can have improved 

dehumidi

fi

 cation without signi

fi

 cantly lowering the room temperature.

Notes:

• In COOL, HEAT, or DRY mode, the maximum output of this 

operation is approximately 70 % of usual air conditioning operation.

• This operation cannot be performed during temperature monitoring 

by AUTO mode.

• In multi-type air conditioning system, ECONOMY operation is 

performed only on the indoor unit whose “ECONOMY” button on the 
corresponding remote controller is pressed.

:  

The setting must be done while the indicator stays solid.

 :  The button is controllable only when the air conditioner is on.

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11/21/2016   4:06:34 PM

11/21/2016   4:06:34 PM

Summary of Contents for ASY4025U11MI-LMC

Page 1: ... be supervised to ensure that they do not play with the appliance Do not start or stop the operation of this product by inserting or pulling out the power plug or by turning on or off the circuit breaker Do not use flammable gases near this product Do not expose yourself directly to the cooling airflow for many hours Do not insert your fingers or any other objects into outlet port open panel or in...

Page 2: ...fuser 3 7 6 5 4 2 1 3 2 1 4 In SWING operation power diffuser does not move 6 Drain hose 7 Remote control signal receiver CAUTION For appropriate signal transmission between remote controller and the indoor unit keep the signal receiver away from following items Direct sunlight or other strong light Flat panel television screen In rooms with instantaneous fluorescent lights such as in verter type ...

Page 3: ...ote control range noticeably shortens replace the batteries and press RESET button You can quickly start the operation with following 3 steps Remote Controller Overview and Operations 1 Start Stop button 2 MODE button Switches operation mode in following order AUTO COOL DRY FAN HEAT Notes in HEAT mode At the beginning of the operation the indoor unit operates at very low fan speed for about 3 5 mi...

Page 4: ...ing In FAN mode either of swing direction 1 3 or 4 7 is performed in accordance with the vertical airflow direction previously set before you start the SWING operation Remote Controller Overview and Operations 10 SET button Adjusts the vertical airflow direction See page 5 11 SLEEP timer button Activates the SLEEP timer that helps you to fall asleep comfortably with gradual temperature control 12 ...

Page 5: ...of the product For frost protection a microcomputer controlled automatic defrost function is equipped in this air conditioner If frost forms the air conditioner will temporarily stop and defrost circuit will operate briefly maximum of 15 minutes OPERATION indicator on the indoor unit blinks during this operation If frost forms on the outdoor unit after the heating operation the outdoor unit will s...

Page 6: ...he shaft until it snaps Then close the intake grille b 4 Press 4 places on the intake grille to close it completely Cleaning the air filters Mind that you have a periodical cleaning of the air filters to prevent reducing the operation efficiency of the product Using of clogged air filter with dust will lower the product performance and may cause airflow reduction or increase of operating noise Cle...

Page 7: ...ith water flow 5 Dry the filter thoroughly in shaded place 6 Reinstall the ion deodorization filter to the indoor unit Replace the filter once every 3 years under normal use After extended non use of the unit If you have shut down the indoor unit for 1 month or more perform the FAN operation for half a day to dry the internal parts thoroughly before you perform normal operation Additional inspecti...

Page 8: ...ERATION indicator is flashing 5 In DRY mode the indoor unit operates at low fan speed to adjust the room humidity and may stop from time to time When the fan speed is set to QUIET the fan rotates at very low speed and the airflow is reduced In COOL mode the indoor unit fan may stop from time to time when the outdoor unit is stopped 3 When monitoring operation is performed in AUTO mode the fan rota...

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