SiEN12-710A Main FunctionsFunction and Control 331.9 INTELLIGENT EYEThis is the function that detects existence of humans in the room by a human motion sensor(INTELLIGENT EYE) and reduces the capacity when there is no human in the room in order tosave electricity.Processing 1. Detection method by INTELLIGENT EYE" This sensor detects human motion by receiving infrared rays and displays the pulse waveoutput." A microcomputer in an indoor unit carries out a sampling every 20 msec. and if it detects 10cycles of the wave in one second in total (corresponding to 20msec.◊ 10 = 200msec.), itjudges human is in the room as the motion signal is ON.2. The motions (for example: in cooling)" When a microcomputer doesnít have a signal from the sensor in 20 minutes, it judges thatnobody is in the room and operating the unit in temperature shifted 2∞C from the settemperature. (Cooling/Dry : 2∞C higher, Heating : 2∞C lower and Auto : according to theoperation mode at that time.)H1 In case of Fan mode, the fan speed reduces by 50 rpm.1secsampling (20msec)HighLowONOFF (R2821)If the sensor detects the outputs 10 times/sec.or more, it judges humans exist.Sensor output(Human motion)Human detectionsignal20 min. 20 min.40 min.(R7117)Human detectionsignalCooling Set temp. + 2°CHeating Set temp. - 2°CSet temp.CompressorspeedRemote controlINTELLIGENTEYE buttonOperationFan speed (H1)within 20minutes.Set speedONOFF RESET.MaxHzMinHz0HzONOFFONOFFOFFThe lower limit by detectinghuman.(Prohibition of thermostat-off)Frequency at set temp. + 2°Cin case ofthermostat-offSet speed - 50 rpmSet speed
