Intelligent Eye - Daikin FTX25JVEA9 Service Manual

Main Functions
1.1.21

Intelligent Eye

For FTK(X)25/35 J The function that detects existence of humans in the air-conditioned room and reduces the
Series Only capacity when no humans are available in the room in order to save electricity by means of a
human motion sensor.
Outline
Processing 1. Detection method by human motion sensor
Sensor output
(Human motion)
Human detection
signal
"
"
2. The motions (for example: in cooling)
Human detection
signal
Compressor
speed
Human motion
detection LED
Remote controller
human motion
detection signal
sensor button
"
90
sampling (20msec)
High
Low
ON
OFF
This sensor detects human motion by receiving infrared rays and displays the pulse wave
output.
A micro computer in an indoor unit carries out a sampling every 20 msec. and if it detects 10
cycles of the wave in one second in total (corresponding to 20msec.× 10 = 100msec.), it
judges human is in the room as the motion signal is ON.
within 20
minutes.
ON
OFF
RESET.
C/O Set temp. + 2˚C
H/P Set temp. - 2˚C
Set temp.
MaxHz
Mi nHz
0Hz
ON
OFF
ON
OFF
ON
Operation
OFF
0
Set speed
Fan speed ( 1)
OFF
When a micro computer doesn't have a signal from the sensor in 20 minutes, it judges that
no body is in the room and turns off the human detection LED, operating the unit in
temperature sifted 2°C from the set temperature. (Cooling : 2°C higher, Dry: 1°C higher and
Auto : according to the operation mode at that time.)
1 In case of Fan mode, the fan speed reduces by 50 rpm.
20 min.
40 min.
Frequency at set temp. + 2˚C
The lower limit by detecting
human.
(Prohibition of thermostat-off)
Set speed - 50 rpm
If the sensor detects the outputs 10 times/sec.
or more, it judges humans are available.
1sec
20 min.
in case of
thermostat-off
Set speed
Si18-201
(RL019)
(RL020)
Main Functions