Mitsubishi Electric Mr. Slim MS09TW, Operating Instructions Manual

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These models are equipped with an auto restart function. If you do not want to use
this function, please consult the service representative because the setting of the
unit needs to be changed.
— Auto restart function is ...
When the Indoor unit is controlled with the remote controller, the operation mode, the set temperature and
the fan speed are stored in the memory. If a power failure occurs or the main power is turned off during
operation, "Auto restart function" sets automatically to start operating in the same mode as the one set with
the remote controller just before the shut off of the main power. (Refer to page 7 for details.)
Turn the breaker on.
Remove the front lid and insert bat-
teries. Then reattach the front lid.
Insert the minus pole of the batteries first.
Check if the polarity of the batteries is correct.
Press the CLOCK set button.
Press the RESET button.
• If the RESET button is not pressed, the remote control-
ler may not operate correctly.
Handling of the remote controller
• The range that the signal can reach is about 20 feet
when the remote controller is pointed at the front
of the indoor unit.
• When a button is pressed, one or two beeps will
be heard from the indoor unit. If no sound is heard,
operate again.
• Use the remote controller carefully.
If it is dropped, thrown or it gets wet, the remote
controller may not operate.
When installing on a wall, etc.
When the indoor unit does not respond to the signal
from the remote controller, or the display becomes
dim, replace the batteries with new ones (size AAA).
• Though both alkaline batteries and manganese
batteries can be used, alkaline batteries are rec-
ommended because their service life is longer than
that of manganese batteries.
• The service life of an alkaline battery is about 1 year.
However, a battery which the time limit is ap-
proaching may be exhausted soon. The recom-
mended usable time limit is indicated (month/year)
on the bottom of the battery.
• Replace the 2 batteries with new ones of the same
type.
• Do not use rechargeable batteries.
• To prevent liquid leakage, take out all batteries
when the remote controller is not going to be used
for a long time.
• Dispose of exhausted batteries in the correct man-
ner.
When the batteries of the remote controller run out or
the remote controller malfunctions, the emergency op-
eration can be done using the EMERGENCY OPERA-
TION switch.
Press the EMERGENCY OPERA-
TION switch.
* When the EMERGENCY OPERATION switch
is pressed, the unit will operate in test run for
30 minutes at first and then the operation mode
shifts to EMERGENCY COOL MODE.
Details of EMERGENCY COOL MODE are as shown
below. However, the temperature control does not work
for 30 minutes in test run and the unit is set to continu-
ous operation. The fan speed is set to Hi in test run
and shifts to Medium after 30 minutes.
The operation mode is indicated by the Operation Indi-
cator lamp on the indoor unit as following figures.
Operation Indicator lamp
MS09TW
MS12/15/17TN
To stop the EMERGENCY COOL
MODE, press the EMERGENCY OP-
ERATION switch again.
* Each time the switch is pressed, the opera-
tion mode alternates between the EMER-
GENCY COOL MODE and STOP MODE.
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