Intelligent Eye - Daikin FTXS09HVJU Service Manual

Main Functions
1.8

INTELLIGENT EYE

This function detects movement in the room by a motion sensor (INTELLIGENT EYE), reducing
capacity when the room is empty in order to save electricity.
Processing
1. Detection method by INTELLIGENT EYE
Sensor output
(Human motion)
Human detection
signal
 This sensor detects human motion by receiving infrared rays and displays the pulse wave
 A microcomputer in the indoor unit carries out a sampling every 20 msec. and if it detects 10
2. The motions (for example: in cooling)
 When a microcomputer does not have a signal from the sensor in 20 minutes, it detects that
1 In case of FAN mode, the fan speed reduces by 50 rpm.
30
sampling (20 msec)
High
Low
ON
OFF
output.
cycles of the wave in one second in total (corresponding to 20msec. 10 = 200msec.), it
determines that there is movement in the room as the motion signal is ON.
within 20
minutes.
Human detection
ON
signal
OFF
RESET.
C/O Set temp. + Δ3.6˚F
H/P Set temp. - Δ3.6˚F
Set temp.
MaxHz
Compressor Mi nHz
speed
0Hz
Remote controller

INTELLIGENT EYE

ON
button
OFF
ON
Operation
OFF
Set speed
Fan speed (1)
OFF
nobody is in the room and operates the unit at a temperature shifted 3.6°F(2°C) from the set
temperature. (COOL : 3.6°F(2°C) higher, DRY: 1.8°F(1°C) higher, AUTO : according to the
operation mode at that time.)
1sec
20 min.
40 min.
Frequency at set temp. + Δ3.6˚F
The lower limit by detecting
human.
(Prohibition of thermostat-off)
Set speed - 50 rpm
SiUS04-904
If the sensor detects the outputs 10 times/sec.
or more, it judges humans exist.
20 min.
in case of
thermostat-off
Set speed
Function and Control
(R2821)
(R0272)