Main Functions SiUS12-928_B
47 Function and Control
1.11 INTELLIGENT EYE Operation (CTXS/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: 1.8 ~ 3.6°F (1 ~ 2°C) higher, Heating: 3.6°F (2°C) lower, Auto:
according to the operation mode at that time.)
In FAN operation, the fan speed is reduced by 50 ~ 60 rpm.
Others For dry operation, you cannot set the temperature with a remote controller, but the target
temperature is shifted internally.