Energy Saving Operations; Economy Operation; Human Sensor For Energy Saving; Fan Control For Energy Saving - Fujitsu Airstage Series Operation Manual

6.4. Sleep timer

1. Select Sleep timer in step 2 of "Timer setting procedure".
2. Press
(
Each time you press the button, the time changes as follows:
0H 1H 2H
30M 00M 00M
(30 min.)
• To deactivate the Sleep timer, press
on the remote controller display.
The indicator will disappear.
During the Sleep timer operation, the setting temperature changes as
the following fi gure.
In Heating mode
2 °F (1 °C) 4°F (2 °C) 6°F (3 °C) 8°F (4 °C)
30 min.
1 hour
1.5 hour
Set time
After the set time has elapsed, the air conditioner operation turns off .

7. ENERGY SAVING OPERATIONS

7.1. Economy operation

It saves more electricity than other operation modes by changing the set
temperature to a moderate setting.
 
Press to activate/deactivate the Economy
operation.
[ ] indicator on the indoor unit will turn on.
Operation
mode
Cooling/Dry Few degrees higher than the set temperature
Heating Few degrees lower than the set temperature
NOTES:
• In the Cooling, Heating, or Dry mode, the maximum output of this
operation is approximately 70 % of usual operation.
• This operation cannot be performed during the temperature
monitoring by the Auto mode.

7.2. Human sensor for energy saving

• Do not use this function when there are only infants,
children, elderly, or sick persons in the room.
• Do not use this function in server rooms or other
places where there is no one in the room.
• Do not place large objects near the human sensor.
Also keep heating units outside the sensor's detection
area.
When no one is in the room, the air conditioner operates moderately to
prevent waste of electricity.
(This function is activated at the time of purchase.)
 
To change the setting, press
While the Energy Saving program is activated,
remote controller display will turn on.
En-7
to set the time until the operation stops.
)
3H 5H 7H
00M 00M 00M
while
In Cooling or Dry mode
Set time
Set
temperature
1 hour
2 °F (1 °C)
Room temperature
WARNING
CAUTION
.
NOTES:
• The following operations will override the Energy Saving program.
- Sleep timer operation
- Min. Heat operation
• The Energy Saving program may not work when the room
temperature is very diff erent from the set temperature, such as
when immediately after starting the operation.
9H
00M
■ Details on Energy Saving program
hours
Human sensor on the indoor unit detects movement of people.
is shown
If there is no one in the room for approximately 20 minutes, the
temperature will be adjusted moderately.
When someone comes back into the room, the air conditioner revert to
the original settings.
Operation
mode
Cooling/Dry
Heating
Auto
4°F (2 °C)
Detection range of Human sensor
Side view
22 ft (7 m）
NOTES: Since Human sensor detects infrared light given out by people,
the detection may be incorrect in the following situations.
Situations in which the sensor may detect no one in the room,
even when there is someone there:
• When the room temperature is high and the diff erence with people's
body temperature is small. (Such as when the temperature is 86 ˚F
(30 ˚C) or higher in summer.)
• When someone in the room do not move for a long time.
• When someone is hidden behind a sofa, other furniture, glass, or in
similar situations.
• When someone is wearing extremely thick clothing and turn their
backs on the sensor.
Situations in which the sensor may detect people in the room, even
when there is no one there
• When there is a dog or a cat moving around in the room.
• When wind is moving curtains or plants.
• When heating units, humidifi ers, or electric appliances such as
oscillating electric fans are operating.

7.3. Fan control for energy saving

In the Cooling operation, when the room
temperature reaches the set temperature, the
indoor unit fan rotates intermittently to save
power. (This function is activated at the time of
purchase.)
To change the setting, use the following
steps;
1. Press
controller display.
2. Press down
The current Fan Control status (
3. Press
deactivated (
4. Press
on the
The display will return to the original screen.
NOTES: If you do not press any buttons for 30 seconds after
displayed,
step 2.
Room temperature
(When there is no one there)
Higher than the set temperature (Max. +4 ˚F (+2 ˚C))
Lower than the set temperature (Max. -8 ˚F (-4 ˚C))
Depending on the operating mode (Cooling/ Heating/
Dry).
90°
until only the clock is displayed on the remote
for more than 5 seconds.
) is displayed.
to switch between activated (
).
to send the setting to the indoor unit.
will turn off . In this case, repeat the setting from
Top view
22 ft
(7 m）
50° 50°
) or
is