Panasonic CS-E9RKUAW E12RKUA Service Manual - Page 55

13.10 Auto Restart Control  When the power supply is cut off during the operation of air conditioner, the compressor will re-operate within three to four minutes (there are 10 patterns between 2 minutes 58 seconds and 3 minutes 52 seconds to be selected randomly) after power supply resumes.  This type of control is not applicable during ON/OFF Timer setting. 13.11 Indication Panel LED Color Light ON Light OFF POWER Green Operation ON Operation OFF TIMER QUIET POWERFUL Orange Orange Orange Timer Setting ON Quiet Mode ON Powerful Mode ON Timer Setting OFF Quiet Mode OFF Powerful Mode OFF AUTO COMFORT Green Auto Comfort ON Auto Comfort OFF ECONAVI Green Econavi Mode ON Econavi Mode OFF Note:  If POWER LED is blinking, the possible operation of the unit are Hot Start, during Deice operation, operation mode judgment, or ON timer sampling.  If Timer LED is blinking, there is an abnormality operation occurs. 13.12 ECONAVI and AUTO COMFORT Operation  A Pyoelectric infrared sensor is used to detect injection strength variation of infrared at setting area to determine the presence or absence of human and its activity level. Human detection area is shown in figure below: Top View 90° 2m Angle of detection 7m Area of detection  ECONAVI and AUTO COMFORT operation - Human presence/absence detection outlined flow Process infrared sensor output signal Human detection (movement) every 3 seconds. ▼ Human detection records Records human detection (movement) result for 30 seconds and determine its activity level i.e. Hi/Lo. ▼ Presence / absence detection Compares current and previous human detection result every 30 seconds to determine the presence or absence of human. ▼ Presence / absence determination Based on human presence / absence detection, if human presence detection showed within 30 minutes, it is recognised that human is present. If human absence detection showed continuously for more than 30 minutes, it is recognised that no human is present.  ECONAVI and AUTO COMFORT Sensor abnormality detection 1. Connector pulled out (disconnected), Wire cut Abnormality (Fix Output at Hi) a. Abnormal judgment start condition. Start from ECONAVI and AUTO COMFORT Sensor power ON, and end after 30 seconds. b. Control content. Judge ECONAVI and AUTO COMFORT Sensor power level every 100ms. c. Abnormal Judgment condition. When ECONAVI and AUTO COMFORT Sensor has continues for 25 seconds Hi level. 55