Mitsubishi Electronics MSZ12UN User Manual Page 13
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7
Operation state
This shows that the air conditioner is operating to reach the
target temperature. Please wait until the target temperature
is obtained.
This shows that the room temperature is approaching the
target temperature.
ON/OFF
FAN
TOO
WARM
TOO
COOL
VANE
MODE
STOP
START
HR.
MIN.
I FEEL
COOL
DRY
AMPM
CLOCK
˚C
AMPM
HEAT
RESET CLOCK
Details of operation
According to the room temperature when the operation starts, the opera-
tion mode is automatically set to COOL, DRY or HEAT. However, when
operation is started again within 2 hours after it is stopped, the same
operation mode before the operation is stopped is selected. The opera-
tion mode selected first is not changed even if the room temperature
changes. If the operation mode does not match the room condition, se-
lect the appropriate operation mode by pressing the
MODE
button.
Details of auto operation
Room temperature Operation mode Target temperature
when started (initial state)
About 77 °F or higher COOL About 75 °F
About 77 °F - 73 °FDRY —
About 73 °F or lower HEAT About 79 °F
FAN
VANE
HEAT
MODE
ECONO COOL
STOP
START
HR.
MIN.
I FEEL
COOL
DRY
I FEEL... AUTO OPERATION
With the “ (I FEEL...)” auto operation mode,
the optimum room condition can be set automati-
cally with a one-touch operation.
•
To start operation:
■
Press the
ON/OFF
button.
When the “ (I FEEL...)” mode is selected, the air
conditioner is automatically controlled at the optimum
temperature.
•
To stop operation:
■
Press the
ON/OFF
button.
•
If you feel slightly warm:
■
Press the
TOO
WARM
button to lower the tempera-
ture.
One press lowers the temperature by about 2 °F.
•
If you feel slightly cool:
■
Press the
TOO
COOL
button to raise the tempera-
ture.
One press raises the temperature by about 2 °F.
When “ (I FEEL...)” is not selected, press
the
MODE
button until it is set.
Each time the button is pressed, the operation mode is
changed in sequence:
(I FEEL...) → (COOL) → (DRY)
→
(HEAT)
NOTE
COOL:
When the room temperature is 4 °F higher than the set temperature, the set temperature may not be changed
since the air conditioner is operating to reach the target (set) temperature. In this case, please wait until
the room temperature drops to within 4 °F of the set temperature and then change the set temperature.
HEAT: When the room temperature is 4 °F lower than the set temperature, the set temperature may not be
changed since the air conditioner is operating to reach the target (set) temperature. In this case,
please wait until the room temperature rises to within 4 °F of the set temperature and then change the
set temperature.
Details of display on the indoor unit
The operation indicator at the right side of the indoor unit indicates
the operation state.
MSZ09UN MSZ12UN
Operation indicator lamp
MSZ09UN
Indication
Difference between target
temperature and room temperature
About 4 °F or more
About 4 °F or less
Operation
Indicator
Lighted
Not lighted
Description of “AUTO RESTART FUNCTION”
■ These units are equipped with an auto restart function. When the main power is turned on, the air conditioner will start
operation automatically in the same mode as the one set with the remote controller before the shutoff of the main power.
■ If the unit was set to off with the remote controller before the shutoff of the main power, it will remain stopped even after
the main power is turned on.
■ If the unit was in the emergency operation before the shutoff of the main power, it will start operation, when main power
comes on, in the same mode as the one set with the remote controller before the emergency operation.
■ If the unit is operated in “I FEEL ...” mode before power failure, the operation is not stored in the memory. In “I FEEL ...”
mode, the operation is decided by the initial room temperature at (re)start.
■ Since the air conditioner has been shipped from the factory with the COOL mode saved in the memory for auto restart
function, it starts cooling operation when the user turns on the main power for the first time after installation.
Description of “I FEEL...” mode
Room temperature:
About 77 °F or higher
→ COOL
About 77 °F - 73 °F→ DRY
About 73 °F or lower
→ HEAT
Lighted
Not lighted
Operation Indicator
MSZ12UN
Operation state
This shows that the air conditioner is operating to reach the
target temperature. Please wait until the target temperature
is obtained.
This shows that the room temperature is approaching the
target temperature.
Indication
Difference between target
temperature and room temperature
About 4 °F or more
About 4 °F or less
- OPERATING INSTRUCTIONS 1
- SAFETY PRECAUTIONS 3
- NAME OF EACH PART 10
- PREPARATION BEFORE OPERATION 11
- I FEEL... AUTO OPERATION 13
- CONVENIENT INFORMATION 15
- SWING OPERATION 17
- Recommended horizontal 17
- TO BE USED FOR A LONG TIME 19
- MAINTENANCE 21
- Air filter 23
- Deodorizing filter 23
- Air cleaning filter 23
- Question 25
- Answer (not a malfunction) 25
- WARNING 27
- CAUTION 27
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