M-Series SEZ-KD Operation Manual

ManualsBrandsMitsubishi ManualsCoolingConcealed Duct 4-Zone System - 48,000 BTU Outdoor - 9k + 9k + 15k + 18k Indoor - 16.5 SEER

˚F

PAR-21MAA

ON/OFF

FILTER

CHECK

OPERATION

CLEAR

TEST

TEMP.

BACK DAY

MONITOR/SET

CLOCK

ON/OFF

5. Operation

5.1. 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 automatically 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.

Mode

Temperature setting

Fan speed

Remote Controller settings

Last operation mode

Last set temperature

Last set fan speed

5.2. Turning ON/OFF

■ Press the ON/OFF button 1.

• The ON lamp 1 and the display area come on.

Note:

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

■ Press the ON/OFF button 1 again.

• The ON lamp 1 and the display area go dark.

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.

5.3. Mode select

■ If the unit is off, press the ON/OFF button to turn it on.

• 1 The ON indicator should light up.

■ Press the operation mode ( ) button 2 and select the opera-

tion mode 2.

Cooling mode

Drying mode

Fan mode

Heating mode

Automatic (cooling/heating) mode

Ventillation mode

Only indicated on the following condition

Wired remote controller used

LOSSNAY connected

Information for multi system air conditioner (Outdoor

unit: MXZ series)

sMulti system air conditioner (Outdoor unit: MXZ series) can con-

nect two or more indoor units to 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, and will

flash the operation state.

In this case, 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. It cannot change over to the operating mode (COOL ↔

HEAT) and goes to stand by mode.

• When indoor unit starts the operation while the outdoor unit is in defrost

mode, it takes a few minutes (max. about 15 minutes) to blow out the

warm air.

• In heating operation, though an indoor unit that is not operating may it

get warm or the sound of refrigerant flowing may be heard, it is not mal-

functioning. 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 4 °F [2 °C] or more above the set temperature for 15 minutes, the

air conditioner switches to cooling mode. If the room temperature re-

mains 4 °F [2 °C] or more below the set temperature for 15 minutes, the

air conditioner switches to heating mode.

■ 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).

Cooling mode

15 minutes (switches

from heating to cooling)

Set temperature +4 °F [2 °C]

Set temperature

Set temperature -4 °F [2 °C]

15 minutes (switches

from cooling to heating )

5.4. Temperature setting

sTo decrease the room temperature:

Press button 3 to set the desired temperature.

The selected temperature is displayed 3.

• Each time you press the button, the temperature value decreases by 2 °F

[1 °C].

sTo increase the room temperature:

Press button 3 to set the desired temperature.

The selected temperature is displayed 3.

• Each time you press the button, the temperature value decreases by 2 °F

[1 °C].

• Available temperature ranges are as follows:

Cooling/Drying: 67 °F [19 °C] - 86 °F [30 °C]

Heating: 63 °F [17 °C] - 83 °F [28 °C]

Automatic: 67 °F [19 °C] - 83 °F [28 °C]

• The display flashes either 47 °F [8 °C] - 103 °F [39 °C] to inform you if

the room temperature is lower or higher than the displayed temperature.

5.5. Fan speed setting

■ Press 5 button to select a desired fan speed.

• Each time you press the button, available options change with the

display 5 on the remote controller, as shown below.

Fan speed

Remote controller display

Low Medium High Auto

3-stage

▼

( )

▼

Note:

Auto Mode is not recommended if this indoor unit is connected to a MXZ type

outdoor unit.

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