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2

MICROPROCESSOR CONTROL

Once the operation mode are set, the same operation mode
can be repeated by simply turning the
OPERATE/STOP(ON/OFF) button ON.
Indoor unit receives the signal with a beep tone.
When the system turns off, compressor will not restart for 3
minutes as 3-minute time delay function operates to protect
compressor from overload.

Signal transmitting section

Operation display section

TEMPERATURE buttons

VANE CONTROL button

TIME SET button

RESET button

FAN SPEED CONTROL button

ECONO COOL button

POWERFUL COOL button

OPERATION SELECT button

TIMER MODE SELECT button

OPERATE/STOP (ON/OFF) button

WIRELESS REMOTE CONTROLLER

MS-A08ND -

MS-A10ND -

MS-A12ND -

MS-A15ND -

MU-A08ND -

MU-A10ND -

MU-A12ND -

MU-A15ND -

C1

C1

C1

C1

C1

C1

C1

C1

Lighted

Not lighted

Approx. 2 

or more

Difference 
between target 
temperature 
and room 
temperature

Approx. 2 

or less

This shows that the 
air conditioner is 
operating to reach 
the target temperature.
Please wait unit the 
target temperature is 
obtained.

This shows that the 
room temperature is 
approaching the 
target temperature.

Operation state

Indication

Operation Indicator

Operation Indicator lamp

The operation indicator at the right side of the indoor 

unit indicates the operation state.

INDOOR UNIT DISPLAY SECTION

• The following indication applies regardless of shape 
  of the indicator.

Once the mode is fixed, the mode does not change by
room temperature afterwards.

Under ON-TIMER (

) operation, the mode is deter-

mined according to the room temperature at set time the
operation starts.

When the system is stopped by the remote controller and

restarted within 2 hours in “I FEEL CONTROL” (

)

mode, the system operates in previous mode automatically
regardless of the room temperature.

1. “I FEEL CONTROL” 

(

OPERATION

(1) Press OPERATE/STOP(ON/OFF) button on the remote

controller. OPERATION INDICATOR lamp of the indoor
unit  turns on with a beep tone.

(2) Select “I FEEL CONTROL”(

) mode with the 

OPERATION SELECT button.

(3) The operation mode is determined by the initial room

temperature at start-up of the operation.

Initial room temperature

Mode

25°C or more

COOL mode of

“I FEEL CONTROL”

DRY mode of

“I FEEL CONTROL”

more than 13°C,

less than 25°C

Operation time chart 
Example

Previous operation
COOL mode of 
“I FEEL CONTROL”
or COOL mode

Operation time chart 
Example

Previous operation
COOL mode of 
“I FEEL CONTROL”
or COOL mode

When the system is restarted after 2 hours and 
more, the operation mode is determined by the 
room temperature at start-up of the operation.

Restart
COOL mode of
“I FEEL CONTROL”

Restart
COOL or DRY mode of
“I FEEL CONTROL” that 
determined by room 
temperature at start-up
of the operation.

OBT10.qxp  05.5.11 11:26 AM  Page 2

Summary of Contents for MS-A08ND

Page 1: ... A12ND MS A15ND WH MU A15ND C1 C1 C1 C1 C1 C1 C1 C1 No OBT10 SPLIT TYPE AIR CONDITIONERS CONTENTS MICROPROCESSOR CONTROL 1 I FEEL CONTROL OPERATION 2 2 COOL OPERATION 5 3 DRY OPERATION 5 4 FAN OPERATION 5 5 FAN MOTOR CONTROL 5 6 AUTO VANE OPERATION 5 7 TIMER OPERATION 7 8 EMERGENCY TEST OPERATION 7 TM ...

Page 2: ...peration state INDOOR UNIT DISPLAY SECTION The following indication applies regardless of shape of the indicator Once the mode is fixed the mode does not change by room temperature afterwards Under ON TIMER operation the mode is deter mined according to the room temperature at set time the operation starts When the system is stopped by the remote controller and restarted within 2 hours in I FEEL C...

Page 3: ...room temperature the frequency of pressing TOO COOL or TOO WARM button and the user s preference to heat or cold So this is called Fuzzy control and works only in I FEEL CONTROL mode In DRY mode of I FEEL CONTROL the set temperature doesn t change To raise the set temperature 1 2 degrees To lower the set temperature 1 2 degrees TOO COOL TOO WARM 1 deg 1 7 deg 3 deg Difference between room temperat...

Page 4: ...Operation time chart Example Thermostat Indoor fan Outdoor fan Compressor ON 8 min 1 min 3 min 4 min ON OFF OFF OFF OFF OFF OFF OFF OFF ON ON ON ON ON ON 4 Coil frost prevention The operation is the same as coil frost prevention during COOL mode of I FEEL CONTROL Indoor fan operates at the set speed and the compressor stops for 5 minutes because coil frost prevention has priority When coil frost p...

Page 5: ... work The other operations are same as DRY mode of I FEEL CONTROL 4 DRY operation will not work when the room temperature is 13 C or below 4 FAN OPERATION 1 Press OPERATE STOP ON OFF button OPERATION INDICATOR lamp of the indoor unit turns on with a beep tone 2 Select FAN mode with OPERATION SELECT button 3 Select the desired fan speed When AUTO it becomes Low Only indoor fan operates Outdoor unit...

Page 6: ... is pressed in COOL mode set temperature is automatically set 2 higher than that in COOL mode Also the horizontal vane swings in a cycle which fits the temperature of indoor heat exchanger RT12 SWING operation makes you feel cooler than set temperature So even though the set temperature is higher than that in COOL mode the air conditioner can keep comfort As a result energy can be saved ECONO COOL...

Page 7: ... can not be set at the same time TIME SELECT Example 1 Setting to stop the air conditioner 3 hours later 1 Press button to select OFF TIMER 2 Press button to set the 3h TIME SELECT 3 h 7 h Example 2 Setting to operate the air conditioner 7 hours later 1 Press button to select ON TIMER 2 Press button to set the 7h TIME SELECT 2 Cancel Press button until OFF TIMER and ON TIMER are not displayed SELE...

Page 8: ...2 3 MARUNOUCHI CHIYODA KU TOKYO100 8310 JAPAN C C Copyright 2005 MITSUBISHI ELECTRIC ENGINEERING CO LTD Distributed in May 2005 No OBT10 7 Made in Japan New publication effective May 2005 Specifications subject to change without notice TM ...

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