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Concealed Duct High Static Pressure
Owner’s Manual
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.
n Preparation
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 re-power the air conditioner after it has not been used for a long period, turn on the leakage breaker at least
12 hours before starting the air conditioner. (This is required to turn on the compressor case heater for warming in order
to prevent overload on the compressor when activating the outdoor unit.)
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.
FILTER
RE
S
E
T
NT
DE
O
N
/
O
F
F
1
2
3
3 Select a desired set point by pushing
the “TEMP.
” or “TEMP. ” button.
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.
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. (“
” Pre-heat is displayed.)
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.
A
u
t
o
H
eat
FanCool
n 8°C OPERATION (For object pre-heating)
(Available for Super Digital Inverter outdoor units)
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 TEMP. button.
2 Set the displayed temperature to 8°C by pushing TEMP.
button for at least four seconds.
Stop
1 Set 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
• 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 4-way air discharge cassette type (4 series), slim duct, Concealed Duct High Static
Pressure are connected in the same control group, the 8°C heating operation is not available.
• 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.
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