Selecting Operation Modes; Emergency Operation; Operation Indicator Lamp; Auto Restart Function - Mitsubishi Electric MSZ-SF25VE Operating Instructions Manual

S
ELECTING OPERATION MODES
1
Press to start the operation.
2
Press to select operation mode. Each press
changes mode in the following order:
(AUTO) (COOL)
3
Press or to set the temperature.
Each press raises or lowers the temperature by 1°C.
Press to stop the operation.

Operation indicator lamp

The operation indicator lamp shows the operation state of the unit.
Indication Operation state
The unit is operating to reach the set
temperature
The room temperature is approach-
ing the set temperature
Standby mode (only during multi
system operation)
Lighted Blinking
Note:
Multi system operation
Two or more indoor units can be operated by one outdoor unit. When several
indoor units are operated simultaneously, cooling/fan and heating operations
cannot be done at the same time. When COOL/FAN is selected with one unit
and HEAT with another or vice versa, the unit selected last goes into standby
mode.
(DRY) (HEAT) (FAN)
Room temperature
About 2°C or more
away from set tem-
perature
About 1 to 2°C from
set temperature
—
Not lighted
AUTO mode (Auto change over)
The unit selects the operation mode according to the difference between the
room temperature and the set temperature. During AUTO mode, the unit
changes mode (COOL↔HEAT) when the room temperature is 2°C away
from the set temperature for more than 15 minutes.
Note:
Auto Mode is not recommended if this indoor unit is connected to a MXZ
type outdoor unit. When several indoor units are operated simultaneously,
the unit may not be able to switch operation mode between COOL and
HEAT. In this case, the indoor unit becomes standby mode (Refer to table
of Operation indicator lamp).

COOL mode

Enjoy cool air at your desired temperature.
Note:
Do not operate COOL mode at very low outside temperatures (less than
-10°C). Water condensed in the unit may drip and wet or damage furni-
ture, etc.

DRY mode

Dehumidify your room. The room may be cooled slightly.
Temperature cannot be set during DRY mode.
HEAT mode
Enjoy warm air at your desired temperature.
FAN mode
Circulate the air in your room.

Emergency operation

When the remote controller cannot be used...
Emergency operation can be activated by pressing the emergency operation
switch (E.O.SW) on the indoor unit.
Each time the E.O.SW is pressed, the operation changes in
the following order:
Operation indicator lamp
Emergency COOL
Emergency HEAT
Stop
Note:
• The fi rst 30 minutes of operation is test run. Temperature
control does not work, and fan speed is set to High.
• In the emergency heating operation, the fan speed gradu-
ally rises to blow out warm air.
• In the emergency cooling operation, the horizontal vanes'
position will be reset in about a minute, then the operation
will start.

Auto restart function

If a power failure occurs or the main power is turned off during operation, "Auto
restart function" automatically starts operation in the same mode as the one
set with the remote controller just before the shutoff of the main power. When
timer is set, timer setting is cancelled and the unit starts operation when power
is resumed.
If you do not want to use this function, please consult the service repre-
sentative because the setting of the unit needs to be changed.
Set temperature : 24°C
Fan speed : Medium
Horizontal vane : Auto
En-4