Intelligent Eye Operation - Daikin FTK(X)M-P Series Service Manual

Main Functions

1.10 INTELLIGENT EYE Operation

Outline This function detects the presence of humans in the room with 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 detection
signal
2. The motions (in cooling)
Human detection
signal
Target temperature
Remote controller
INTELLIGENT
EYE button
Operation
Fan speed ( )
Note: For dry operation, the temperature cannot be set with a remote controller, but the target
temperature is shifted internally.
21
sampling (20 msec.)
High
Low
ON
OFF
The sensor detects human motion by receiving infrared rays and displays the pulse wave
output.
The microcomputer in the indoor unit carries out a sampling every 20 msec. and if it detects
10 cycles of the wave in 1 second in total, it judges humans are in the room as the motion
signal is ON.
The sensor may detect human motion with up to 20 msec. latency.
within
20 min.
ON
OFF
↑
Reset
ON
OFF
ON
OFF
OFF
In FAN operation, the fan speed is reduced by 60 rpm.
When the microcomputer does not have a signal from the sensor in 20 minutes, it judges
that nobody is in the room and operates the unit at a temperature shifted from the target
temperature. (Cooling / Dry: 1 ~ 2°C higher, Heating: 2°C lower, Auto: according to the
operation mode at that time.)
Human motion
20 min.
Set speed
SiMT041509E
If the sensor detects the outputs
10 times/sec. or more, it judges
humans are in the room.
1 sec.
within
20 min. within
↑
Reset
Set speed
Function and Control
(R19471)
20 min.
↑
Reset
(R19414)