Concealed Duct High Static Pressure | Owner’s Manual |
4 CORRECT USAGE
•When you use the air conditioner for the first time or when you change the setting, follow the steps below. Settings are
saved in memory and are displayed anytime the unit is turned on by pushing the 
button.
nPreparation
Turn on the main power switch and/or the leakage breaker.
•When the power supply is turned on, a partition line is displayed on the display part of the remote controller.
•After the power supply is turned on, the remote controller does not accept an operation for approx. 1 minute, but it is not a failure.
REQUIREMENT•While using the air conditioner, operate it only with 
button without turning off the main power switch and the leakage breaker.
•When you
Concealed Duct High Static Pressure | Owner’s Manual |
n8°C OPERATION (For object
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
1Set the displayed temperature to 18°C in the heating mode by pushing TEMP. 
button.
2Set the displayed temperature to 8°C by pushing TEMP. 
button for at least four seconds.
Stop
1Set the displayed temperature to 18°C by pushing TEMP. 
button.
• The air conditioner returns to the normal HEAT mode. Select a desired temperature and operation mode.
NOTE
– 76 –
ON / OFF
3
DE
NT
FILTER
RESET
1
2
Stop
Push 
button.
The operation lamp goes off, and the operation stops.
NOTE
Auto Changeover
•When in Auto Mode, the unit selects the operating mode (cooling, heating or fan only) based on the user selected set point temperature.
•If the Auto mode is uncomfortable, you can select the desired conditions manually.
•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. The 8°C heating operation is cancelled in the following cases.
•When operation is stopped with
button
•When another operation mode is selected with
button
•When temperature setting or operation mode is changed or operation is started/stopped by the wireless remote controller or the central control remote controller.
•If one or more models other than the
•When you use this operation mode, observe proper operating hours and we recommend that you ask service staff for periodic maintenance of the air conditioner.
Start
| 1 Push | button. |
The operation lamp illuminates, and the operation starts.
2 Select an operation mode with the“ 
” button.
One push of the button, and the display changes in the order shown below.
Auto | Heat |
|
| Cool |
|
| Fan |
|
| ||||||
|
|
|
|
|
|
|
|
” or “TEMP. 
” button.Cooling
•If there is a demand for cooling, unit will start approximately 1 minute after mode is selected.
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 will carry on fan operation.
During defrost operation, the fan stops so that cool air is not discharged. (“
”
When restarting the operation after stop
•When attempting to restart the unit immediately after it was stopped, the unit can not start for approx. 3 minutes this is to protect the compressor.
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