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4
Operation
When you use the air conditioner for the first time or change the settings, follow the procedures below. From next
time, pushing the ON/OFF button starts running of the air conditioner with the chosen settings.
■
Standby
Operations are not accepted when "SETTING" is blinking.
REQUIREMENT
• Keep the power switch turned on during use.
• When you resume using the air conditioner after a long period of disuse, turn on the power switch at least 12 hours
before starting running.
• When the power is turned on, it takes about 1 minute before the remote controller becomes operable.
This is not a malfunction.
■
Running operation
Some operation modes are not available depending on the type of indoor unit.
Menu button
Setting button
ON/OFF button
1
ON/OFF button
Push this button to light the operation lamp and
start operations.
When heating
• The heated air comes out after a 3 to 5 minutes
of pre-heating with the indoor fan kept turned
off.
2
Select the operation mode
Push the Menu button several times to select the
operation mode.
• The current operation mode flashes.
Each time you push the setting button, the
operation mode and its icon change in the
following order:
Auto
Heat
Dry
Cool
(Dehumidify)
• If you do not push any button for 30s, the
operation mode finishes.
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3
Select the fan speed
Push the Menu button several times to select the
fan speed mode.
• The current fan speed indicator flashes.
Each time you push the setting button, the fan
speed mode and its indication change in the
following order:
• A selectable fan speed differs depending on
indoor units to be connected.
• "
Auto" cannot be selected at the Fan
mode.
• If you do not push any button for 30s, the fan
speed mode finishes.
4
Select the temperature
Push the setting button to adjust the temperature.
• The temperature setting range is 18.0 °C to
29.0 °C.
• The temperature can be set in steps of 0.5 °C.
Fan
NOTE
Auto Changeover
• When in Auto Mode, the unit selects the operating mode (cooling, heating or fan only) based on the user set point
temperature.
• If the Auto mode is uncomfortable, you can select the desired conditions manually.
Cooling
• If there is a demand for cooling, unit will start approximately 1 minute after mode is selected.
• When the room temperature reaches the set temperature, the outdoor unit stops and the indoor unit fan runs at extremely
low speed.
Heating
• If there is a demand for heating, unit will start approximately 3 to 5 minutes after the mode is selected.
• After the heating operation has stopped, fan may continue to run for approx. 30 seconds.
• When the room temperature reaches the set temperature, the outdoor unit stops and the indoor unit fan runs at extremely
low speed.
• During defrost operation, the fan stops so that cool air is not discharged. ("
When restarting the operation after stop
When the unit is attempted to restart immediately after it was stopped, the unit can not start for approx. 3 minutes this is to
protect the compressor.
■
8 °C Operation (For object pre-heating)
The air conditioner can control the heating temperature to about 8 °C in the heating mode.
The 8 °C heating operation requires settings with the wired remote controller. Ask the installer or dealer for the settings
according to the installation manual of the indoor unit.
Start
1
Set the displayed temperature to 18 °C in the heating mode by pushing [
2
Set the displayed temperature to 8 °C by pushing [
Stop
1
Set the displayed temperature to 18 °C by pushing [
• The air conditioner returns to the normal Heat mode. Select a desired temperature and operation mode.
NOTE
• The discharged air temperature is lower than that in the normal heating operation.
• The room temperature may not be heated evenly depending on the remote controller installation location.
• The room temperature may not reach 8 °C depending on the room size or the installation conditions.
• Setting for fan speed is available during the 8 °C heating operation.
The 8 °C heating operation is cancelled in the following cases.
•When operation is stopped with ON/OFF button.
•When another operation mode is selected.
•When temperature setting or operation mode is changed or operation is started / stopped by the wireless remote controller
or the central control remote controller.
• When this operation mode is used, observe proper operating hours and periodic maintenance by service staff is
recommended.
– 8 –
" Pre-heat is displayed.)
] setting button.
] setting button for at least four seconds.
] setting button.
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