Intelligent Eye Operation - Daikin FTXS20G2V1B Service Manual

Main Functions

1.10 INTELLIGENT EYE Operation

Outline For ATXS Model
This is the function that detects existence of humans in the room by 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
Sensor output
(Human motion)
Human detection
signal
„ This sensor detects human motion by receiving infrared rays and displays the pulse wave
„ The microcomputer in the indoor unit carries out a sampling every 20 msec. and if it detects
2. Motions (for example: in cooling)
Human detection
signal
Target temperature
Remote control
INTELLIGENT
EYE button
Operation
Fan speed (H1)
„ When the microcomputer does not have a signal from the sensor in 20 minutes, it judges
H1 In case of FAN mode, the fan speed reduces by 60 rpm.
„ For dry operation, you cannot set the temperature with remote control, but internally the
Others
41
sampling (20 msec.)
High
Low
ON
OFF
output.
10 cycles of the wave in one second in total (corresponding to 20 msec. × 10 = 200 msec.), it
judges human is in the room as the motion signal is ON.
within 20
minutes.
ON
OFF
RESET.
ON
OFF
ON
OFF
Set speed
OFF
that nobody is in the room and operates the unit in the temperature shifted from the target
temperature. (Cooling / Dry : 2°C higher, Heating : 2°C lower, Auto : according to the
operation mode at that time.)
target temperature is shifted by 2°C.
1 sec.
20 min.
Set speed – 60 rpm
SiENBE04-808_A
If the sensor detects the outputs
10 times/sec. or more, it judges
humans exist.
(R2821)
20 min.
Set speed
(R11814)
Function and Control