Intelligent Eye Operation (Ctxs, Ftxs Series) - Daikin 2MXS-N Series Service Manual

Function of CTXS, FTXS, CDXS, FDXS, FVXS Series

1.10 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
2. The motions (in cooling)
Human detection
signal
Note: For dry operation, the temperature cannot be set with a remote controller, but the target
temperature is shifted internally.
44
sampling (20 msec.)
High
Sensor output
Low
ON
Human detection
signal
OFF
The 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, it judges humans are in the room as the motion signal is
ON.
The sensor may detect human motion with up to 20 msec. latency.
within
20 min.
ON
OFF
↑
Reset
Target temperature
Remote controller
ON
INTELLIGENT
OFF
EYE button
ON
Operation
OFF
Fan speed ( )
OFF
In FAN operation, the fan speed is reduced by 60 rpm.
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.)
Human motion
20 min.
Set speed
If the sensor detects the outputs
10 times/sec. or more, it judges
humans are in the room.
1 sec.
within
20 min. within
20 min.
↑
Reset
Set speed
Function and Control
SiUS121502E
(R19471)
↑
Reset
(R19414)