SiUS091133
Main Functions
Function and Control
38
1.10 INTELLIGENT EYE Operation (FTXS Series)
Outline
This function detects the existence of humans in the room with a motion sensor (INTELLIGENT
EYE) and reduces the capacity when there is nobody in the room in order to save electricity.
Detail
1. Detection method by INTELLIGENT EYE
This sensor detects human motion by receiving infrared rays and displays the pulse wave
output.
The microcomputer in the indoor unit carries out a sampling every 20 msec. and if it detects 10
cycles of the wave in 1 second in total (corresponding to 20 msec. × 10 = 200 msec.), it judges
humans are in the room as the motion signal is ON.
2. The motions (for example: in cooling)
When the microcomputer does not have a signal from the sensor in 20 minutes, it judges that
nobody is in the room and operates the unit at a temperature shifted from the target
temperature. (Cooling / Dry: 1 ~ 2°C (1.8 ~ 3.6°F) higher, Heating: 2°C (3.6°F) lower, Auto:
according to the operation mode at that time.)
In FAN operation, the fan speed is reduced by 60 rpm.
Others
For dry operation, you cannot set the temperature with a remote controller, but the target
temperature is shifted internally.
1 sec.
sampling (20 msec.)
High
Low
ON
OFF
Sensor output
(Human motion)
(R2821)
Human detection
signal
If the sensor detects the outputs
10 times/sec. or more, it judges
humans exist.
ON
OFF
RESET.
20 min.
20 min.
within 20 min.
ON
OFF
ON
OFF
Operation
OFF
Fan speed (
)
Set speed
Set speed
Target temperature
(R14583)
Remote controller
INTELLIGENT
EYE button
Human detection
signal
