Mitsubishi Electric SEZ-KD25 Operation Manual Download Page 4

Page: 4 / 10

<To Stop Operation>

■

Press the ON/OFF button

again.

Note:
Even if you press the ON/OFF button immediately after shutting down the op-
eration is progress, the air conditioner will not start for about three minutes.
This is to prevent the internal components from being damaged.

3.3. Mode select

■

Press the operation mode (

) button

and select the opera-

tion mode

Cooling mode

Drying mode

Fan mode

Heating mode

Automatic (cooling/heating) mode

3. Operation

CLOCK

CHECK

RESET

SET

TEST RUN

MODE

FAN

VANE

LOUVER

min

AUTO START

AUTO STOP

ON/OFF

TEMP

3.1. Description of “AUTO RESTART FUNCTION”

• This unit is equipped with the auto restart function. When the main

power is turned on, the air conditioner will start operation automati-
cally in the same mode as set with the remote controller before the
shutoff of main power.

• If the unit was set to off with the remote controller before the shutoff of

main power, it will remain stopped even after the main power is turned
on.

• If the unit was in the TEST RUN before the shutoff of main power, it

will start operation, at main power on, in the same mode as set with
the remote controller before the TEST RUN.

■

Because the room temperature is automatically adjusted in order to
maintain a fixed effective temperature, cooling operation is performed a
few degrees warmer and heating operation is performed a few degrees
cooler than the set room temperature once the temperature is reached
(automatic energy-saving operation).

Mode
Temperature setting
Fan speed

Airflow up/down

Remote Controller settings
Last operation mode
Last set temperature
Last set fan speed

COOL or DRY

Mode HEAT

FAN

3.2. Turning ON/OFF

<To Start Operation>

■

Press the ON/OFF button

Note:

●

When the unit is restarted, initial settings are as follows.

Cooling mode

15 minutes (switches
from heating to cooling)

Set tempe2

Set temperature

Set temperature -2

15 minutes (switches
from cooling to heating )

Information for multi system air conditioner (Outdoor
unit: MXZ series)

Multi system air conditioner (Outdoor unit: MXZ series) can con-
nect two or more indoor units with one outdoor unit. According to
the capacity, two or more units can operate simultaneously.

• When you try to operate two or more indoor units with one outdoor unit

simultaneously, one for the cooling and the other for heating, the opera-
tion mode of the indoor unit that operates earlier is selected. The other
indoor units that will start the operation later cannot operate, indicating
an operation state in flashing.
In this case, please set all the indoor units to the same operation mode.

• There might be a case that the indoor unit, which is operating in

(AUTO) mode. Cannot change over to the operating mode (COOL

↔

HEAT) and becomes a state of standby.

• When indoor unit starts the operation while the defrosting of outdoor

unit is being done, it takes a few minutes (max. about 15 minutes) to
blow out the warm air.

• In the heating operation, though indoor unit that does not operate may

get warm or the sound of refrigerant flowing may be heard, they are not
malfunction. The reason is that the refrigerant continuously flows into it.

Automatic operation

■

According to a set temperature, cooling operation starts if the room tem-
perature is too hot and heating operation starts if the room temperature
is too cold.

■

During automatic operation, if the room temperature changes and re-
mains 2

C or more above the set temperature for 15 minutes, the air

conditioner switches to cooling mode. In the same way, if the room tem-
perature remains 2

C or more below the set temperature for 15 min-

utes, the air conditioner switches to heating mode.

3.4. Temperature setting

To decrease the room temperature:

Press

button

to set the desired temperature.

The selected temperature is displayed