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KJ79K623H01
3. How to operate
3.1. Turning ON/OFF
ON
Press the [ON/OFF] button.
The ON/OFF lamp will light up in green, and
the operation will start.
*
The unit will operate with the previously-
set operation mode, set temperature, and
fan speed.
OFF
Press the [ON/OFF] button again.
The ON/OFF lamp will come off, and the
operation will stop.
3.2. Operation mode
Press the [F1] button to go through the
operation modes in the order of "Cool, Dry,
Fan, Auto, and Heat."
Select the desired operation mode.
Cool
Dry
Fan
Auto
Heat
*
Operation modes that are not available for
the connected indoor unit will not appear on
the display.
*
Depending on the indoor unit model, either
one or two set temperatures (single or dual
set point(s)) can be set for Auto mode.
What the blinking mode icon means
The mode icon will blink when other indoor units in the same
refrigerant system (connected to the same outdoor unit) are already
operated in a different mode. In this case, the rest of the units in the
same group can only be operated in the same mode.
Dry mode
• The indoor fan turns to the low-speed operation, disabling the change of fan
speed.
• Dry operation cannot be carried out at room temperature of less than 18°C.
• The dry is a microcomputer-controlled dehumidifying operation which controls
excessive air-cooling according to the room temperature of your choice. (Not
usable for heating.)
1. Until reaching room temperature of your choice
The compressor and indoor fan function is linked motion according to the
change of the room temperature and automatically repeat ON/OFF.
2. When reaching room temperature of your choice
Both the compressor and indoor fan stop.
When stop continues for 10 minutes, the compressor and indoor fan are
operated for 3 minutes to keep the humidity low.
Heat mode
“DEFROST” display
Displayed only during the defrosting operation.
“STAND BY” display
Displayed from the start of heating operation until the moment warm air blows out.
Caution:
•
Never expose your body directly to cool air for a long time. Excessive
exposure to cool air is bad for your health, and should therefore be
avoided.
•
When the air-conditioner is used together with burners, thoroughly
ventilate the area. Insufficient ventilation can result in accidents due to
oxygen deficiency.
•
Never place a burner at a place where it is exposed to the airflow from the
air-conditioner. Doing so can result in imperfect combustion of the burner.
•
The microcomputer functions in the following cases:
- Air does not blow out when heating starts.
• To prevent any cool air from escaping, the indoor fan is gradually switched
in sequence from faint airflow/weak airflow/set airflow according to the
temperature rise of the blown out air. Wait a moment until the airflow comes
out naturally.
- The fan is not moving at the set speed.
• In some models, the system switches over to faint airflow when the
temperature of the room reaches the set temperature. In other cases, it
stops to prevent any cool air from escaping during the defrosting operation.
- Air flows out even if operation is stopped.
• Approximately 1 minute after the stop of operation, the indoor fan
sometimes rotates to eliminate extra heat generated by the electric heater,
etc. The fan speed comes to low or high.
Auto (dual set point) mode
When the operation mode is set to the Auto (dual set point) mode, two set
temperatures (one each for cooling and heating) can be set. Depending on the
room temperature, indoor unit will automatically operate in either the cooling or
heating mode and keep the room temperature within the preset range.
The set temperatures that are specified for the Cool/Dry mode and the Heat mode
will be used to automatically control the room temperature to stay within the set
temperatures. This mode is especially effective during the in-between seasons,
when the temperature difference between the highest and the lowest is large and
both heating and cooling modes are used within the same day.
Room
temperature
Cool
The room temperature
changes corresponding
to the change in the
outside temperature.
Heat
Cool
Operation pattern during Auto (dual set point) mode
Set temp.
(Cool)
Heat
Set temp.
(Heat)
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