Intelligent Eye Operation - Daikin 4MXL-T Series Service Manual

RA Indoor Unit Functions
2.9

INTELLIGENT EYE Operation

Applicable CTXS07LVJU
Models FTXS09/12/15/18/24LVJU
Outline The microcomputer detects the presence of humans in the room with a motion sensor and reduces
the capacity when there is nobody in the room in order to save electricity.
Details 1. INTELLIGENT EYE detection method
Motion sensor
output
Detection signal
from the motion
sensor
Human detection
signal
 The motion sensor detects human motion by receiving infrared rays and sends the pulse wave
 The microcomputer in the indoor unit carries out a sampling every 20 msec. If the motion sensor
2. Motions (in cooling)
 In FAN operation, the fan speed is reduced by 60 rpm when no one is in the area.
 When there is no signal from the motion sensor in 20 minutes, the microcomputer judges that
72
Sampling (20 msec.)
High
Low
(Condition of 10 times or more output)
High
Low
ON
OFF
output.
detects 10 times or more of the wave output in one second in total, and the High signal
continues for 3 sec., the microcomputer judges humans are in the room as the human detection
signal is ON.
within
20 min.
ON
Human detection
signal
OFF
Target temperature
ON
Remote controller
Sensor button OFF
ON
Operation
OFF
Fan speed (#)
OFF
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
3 sec. If the detection signal (High) continues for 3 sec. or more,
the microcomputer judges humans are in the room.
20 min.
↑
Reset
1 ~ 2°C (1.8 ~ 3.6 °F)
Set speed
60 rpm
1 sec.
If the motion sensor detects the outputs
10 times/sec. or more, the microcomputer
judges the detection signal from the
motion sensor is High.
within
20 min.
Reset
Part 4 Functions and Control
SiUS121827E
(R24035)
within
20 min.
↑ ↑
Reset
Set speed
(R23920)