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  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: 

 

 

 

  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 recognized 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 

o  Connnector 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. 

o  Circuit Abnormal (Fix Output Lo) 

a. Abnormal judgment start condition. 

After ECONAVI and AUTO COMFORT Sensor unit power ON, and after pressed 70 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 at Lo level for 25 seconds. 

o Abnormal 

treatment 

Any one of the above self-diagnosis result is abnormal 



  Abnormal counter +1 and ECONAVI and AUTO COMFORT Sensor power supply OFF. 



  After ECONAVI and AUTO COMFORT Sensor unit power is OFF for 5 seconds, Retry the ECONAVI and 

AUTO COMFORT operation. 



  When Abnormal counter reach 4 counts, ECONAVI and AUTO COMFORT sensor abnormality is 

confirmed. 
(Abnormal counter is cleared when sensor power ON and maintain normal for 120 seconds and above or 
Clear Anormal counter by power reset) 



  Save ECONAVI and AUTO COMFORT Sensor Abnormality H59 (no Timer LED blinking). 



  ECONAVI and AUTO COMFORT Sensor operation OFF, but ECONAVI and AUTO COMFORT LED 

maintain ON. 



  The unit still operate as normal. 



  Sensor error counter can be cleared only after power supply reset or AC Reset button on the remote 

control is pressed. 

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  ECONAVI and AUTO COMFORT Demo Mode 



  To enable ECO DEMO mode, during unit is OFF (power standby): 

 

 

 



  To disable ECO Demo MODE: 

  Transmit ECO Demo signal again. 

 
Control details: 
  During ECONAVI and AUTO COMFORT Demo mode, operation LED ON and horizontal vane will set to Auto 

Swing. 

  When Hi activity judge, Fan speed change to Hi Fan and ECONAVI and AUTO COMFORT LED ON. 

  When Lo activity judge, Fan speed change to Lo Fan and ECONAVI and AUTO COMFORT LED OFF. 

  No setting temperature adjustment. 

  During ECONAVI and AUTO COMFORT operation, the internal setting temperature and fan speed are adjusted 

in order to provide comfort and energy saving. 

 

  ECONAVI Start condition. 



  Press ECONAVI button. 

 

  ECONAVI Stop condition. 



  Press ECONAVI button again. 



  OFF Timer activates. 



  Press OFF/ON button to turn off the air conditioner. 



  Press AUTO OFF/ON button to turn off the air conditioner. 



  Press POWERFUL/QUIET button. 

 
  AUTO COMFORT Start condition. 



  Press AUTO COMFORT button. 

 

  AUTO COMFORT Stop condition. 



  Press AUTO COMFORT button again. 



  OFF Timer activates. 



  Press OFF/ON button to turn off the air conditioner. 



  Press AUTO OFF/ON button to turn off the air conditioner. 



  Press POWERFUL/QUIET button. 

 

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  ECONAVI & AUTO COMFORT operation could ON when any of the following conditions is fulfilled:  



  During forced cooling or forced heating operation. 

 

  Power Failure  



  ECONAVI & AUTO COMFORT operation will be resuming after recovered from power failure.  

 

  Timer Operation  



  When unit is turn on by ON Timer and ECONAVI and AUTO COMFORT operation is ON during previous 

operation before OFF, ECONAVI and AUTO COMFORT operation will not be ON automatically. 



  When unit is turn on by ON Timer and ECONAVI and AUTO COMFORT operation is OFF during 

previous operation before OFF, ECONAVI and AUTO COMFORT operation will not be ON automatically. 

 
  Other Information  



  ECONAVI and AUTO COMFORT, Powerful, Quiet and Mild Dry Cooling cannot be operated at the same 

time. 



  ECONAVI and AUTO COMFORT sensor initialized time is 70 seconds from power supplied to ECONAVI 

and AUTO COMFORT sensor, or 70 seconds from the operation start. 

 

  Setting Temperature and Fan Speed Shift 



 Mono 

Sensor 

 

 

 

48 

  ECONAVI & AUTO COMFORT Sensor abnormality check mode 

  Purpose is to improve sensor serviceability when sensor is malfunction. 

1.  Control starting condition 



  To enable infrared sensor check mode, during ECONAVI operation ON: 

 

 

 

2.  Control ending condition 

When any of the conditions are formed. 



 Operation 

stops. 



  “Timer Cancel” button pressed. 



  When ECONAVI & AUTO COMFORT sensor check mode signal is not received for more than 30 

seconds. 

 

3. Control 

content 



  During ECONAVI & AUTO COMFORT mode ON, when check signal is received, if (1) or (2) is detected. 

ECONAVI & AUTO COMFORT LED start blinking (ECONAVI & AUTO COMFORT sensor operation 
stops but the unit operates as normal) and ECONAVI & AUTO COMFORT sensor abnormal code is 
memorized (the 4 times counter is ignored). 



  The blinking of ECONAVI & AUTO COMFORT LED can be cancelled by pressing ECONAVI & AUTO 

COMFORT button again. 



  Sensor error counter can be cleared only after power supply reset or “AC Reset” button on remote 

control is pressed. 

 
However, if there is no ECONAVI & AUTO COMFORT sensor abnormally happen, ECONAVI & AUTO COMFORT 
sensor operation will continues as normal.