MXS Service Manual

SiUS121736EA RA Indoor Unit Functions
Functions and Control 60
2.8 2-Area INTELLIGENT EYE Operation
Applicable
Models
CTXG09/12/18QVJUW(S)
FTXR09/12/18TVJUW(S)
Outline The following functions can be performed by the microcomputer with a motion sensor.
1. Reduction of the capacity when there is nobody in the room in order to save electricity (energy
saving operation)
2. Dividing the room into plural areas and detecting presence of humans in each area.
Moving the airflow direction to the area with no human automatically to avoid direct airflow on
humans.
Details 1. INTELLIGENT EYE detection method
 The motion sensor detects human motion by receiving infrared rays and sends the pulse wave
output.
 The microcomputer in the indoor unit carries out a sampling every 20 msec. If the motion sensor
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.
 2-area INTELLIGENT EYE motion sensor divides the area into 2 and detects presence of
humans in each area.
Image of 2-area INTELLIGENT EYE
1 sec.
Sampling (20 msec.)
High
Low
ON
OFF
High
Low
(R24035)
(Condition of 10 times or more output)
Human motion
3 sec.
If the detection signal (High) continues for 3 sec. or more,
the microcomputer judges humans are in the room.
Detection signal
from the motion
sensor
Human detection
signal
Motion sensor
output
If the motion sensor detects the outputs
10 times/sec. or more, the microcomputer
judges the detection signal from the
motion sensor is High.
Top view
(R22951)
Indoor unit
Wall
Area AArea B
A microcomputer judges human presence by
the human detection signal from each area A and B.