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14.14.1.4 Human Position Analysis
According to Area of Living, frequency of activity and indoor unit intake temperature, the system will analyze the
human position away from the indoor unit.
14.14.1.5 Target Area and Position Judgment
The system will judge the indoor unit installation position according to human activity Non-Living Area:
o Non-Living Area at Position A – Indoor unit installed at left side of the room.
o Non-Living Area at Position C – Indoor unit installed at right side of the room.
o Other than above – Indoor unit installed at center of the room.
o Non-Living Area at Position C – Indoor unit installed at right side of the room.
o Other than above – Indoor unit installed at center of the room.
Every 4 hours, the Target Area and Position Judgment will restart.
14.14.1.6 Human Activity Level Judgment
Human Activity Level is judged based on the frequency of pulses detected by the infrared sensors within a
timeframe. The activity level will be categorized into High, Normal, Low level.
When a pulse is detected within this timeframe, the status of human presence is judged.
When there is no signal detection continues for 20 minutes or more, the status of human absence is judged.
14.14.1.7 Setting Position Judgment
According to installation position when there is only one activity area detected, the horizontal airflow direction
louver position is fixed according to chart below:
Target area
Horizontal airflow direction louver position
Left installation
Center installation
Right installation
A
3 2 2
B
1 1 1
C
5 5 4
Louver position refer to horizontal airflow direction control.
When 2 activity areas have been detected, according to Human Activity Level, the timing of horizontal airflow
direction louver steps at the targeted activity areas is judged.
Operation mode
Activity level difference
Louver stop time
Cooling
1 level
Higher Activity level ≈ 60 seconds
Lower Activity level ≈ 30 seconds
Lower Activity level ≈ 30 seconds
2 levels
Higher Activity level ≈ 60 seconds
Lower Activity level ≈ 8 seconds
Lower Activity level ≈ 8 seconds
Cooling
1 level
Higher Activity level ≈ 8 seconds
Lower Activity level ≈ 30 seconds
Lower Activity level ≈ 30 seconds
2 levels
Higher Activity level ≈ 8 seconds
Lower Activity level ≈ 60 seconds
Lower Activity level ≈ 60 seconds
When 3 activity areas have been detected, according to Human Activity Level the timing of horizontal airflow
louver steps at the targeted activity areas is judged.
Operation mode
Activity level
Louver stop time
Cooling
Hi
Me
Lo
≈ 45 seconds
≈ 30 seconds
≈ 20 seconds
≈ 30 seconds
≈ 20 seconds
Heating
Hi
Me
Lo
≈ 20 seconds
≈ 30 seconds
≈ 45 seconds
≈ 30 seconds
≈ 45 seconds
When 3 activity areas have same activity level, the horizontal airflow direction louver will swing left and right.
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14.14.1.8 Setting Temperature and Fan Speed Shift
ECONAVI
; Detecting human presence and activity, the unit controls room temperature to save energy.
Mode
Human
Low activity
Normal activity
High activity
Absent
COOL/DRY
Set
temperature
temperature
+1.0°C
+2.0°C
HEAT
-2.0 °C
-2.0 °C
14.14.1.9 Rhythmic Temperature Wave Operation
To further maximize the energy saving during ECONAVI operates at low activity level.
Start
Start
condition
o The unit is operates in Cool or Dry mode under ECONAVI operation, and
o Human activity sensor detects low activity level continuously for 60 minutes, and
o Human activity sensor detects low activity level continuously for 60 minutes, and
Stop
condition
o Unit is off, or
o ECONAVI is off, or
o Human activity sensor detects high activity level or absent, or
o ECONAVI is off, or
o Human activity sensor detects high activity level or absent, or
Control
contents
o When all start conditions complied, set temperature will shift accordingly as following:
ECONAVI
; Detecting human presence and activity, the unit controls room temperature to save energy.
Mode
Human
Low activity
Normal activity
High activity
Absent
COOL/DRY
Set
temperature
temperature
+1.0°C
+2.0°C
HEAT
ECONAVI
Precise control of temperature during low activity to maximise energy saving.
Precise control of temperature during low activity to maximise energy saving.
Mode
Human
Low activity
COOL/DRY
Set
temperature
temperature
ECONAVI take advantage of the human nature that
human being takes time to feel the temperature rise
during low activity level; the unit adjusts temperature to
maximise energy saving without sacri cing the comfort.
human being takes time to feel the temperature rise
during low activity level; the unit adjusts temperature to
maximise energy saving without sacri cing the comfort.
-2.0 °C
-2.0 °C
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14.14.1.10 ECONAVI Demo Mode
To enable ECO DEMO mode, during unit is OFF (power standby):
SET
Transmit ECO demo code and
after 30 seconds return to normal
mode.
after 30 seconds return to normal
mode.
Press continously for 5s
Transmit check code
and after 30 seconds return to normal
mode.
and after 30 seconds return to normal
mode.
Transmit sunlight sensor check code
and after 30 seconds return to normal
mode.
and after 30 seconds return to normal
mode.
Remote control normal mode
To disable ECO Demo MODE:
o Transmit ECO Demo signal again.
Operation
details
Infrared sensor
Vane position
Fan speed
Sensor 1
Sensor 2
1 0 5 HI
1 1
1 1
Auto
Swing
HI
0 1 2 HI
0 0
0 0
Auto
Swing
LO
The target area will maintain for 5 seconds before changeover to next detection.
If no activity detection, the last action will maintain for 30 seconds before changeover to human absence status.
14.14.1.11 Human Activity Sensor Abnormality
Abnormality
detection:
Connector disconnection / Wire cut abnormality
o Sensor judge Hi level continuously for 25 seconds
Circuit
abnormality
o 70 seconds after power ON, if human activity sensor judge Lo level continuously for 25 seconds
Error Code judgment
When abnormality happened, internal counter increase by 1 time.
Human activity sensor power OFF, retry after 5 seconds.
When the human activity sensor maintains normal condition for 120 seconds, the counter reset or AC reset.
When abnormality counter reached 4 times, H59 occurred – No TIMER indicator blinking.
When error code happened, the unit is able to operate without ECONAVI.
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14.14.1.12 Human Activity Sensor Check Mode
To enable Human Activity sensor abnormality check mode, during ECONAVI operation ON:
SET
Transmit ECO demo code and
after 30 seconds return to normal
mode.
after 30 seconds return to normal
mode.
Press continously for 5s
Transmit check code
and after 30 seconds return to normal
mode.
and after 30 seconds return to normal
mode.
Transmit sunlight sensor check code
and after 30 seconds return to normal
mode.
and after 30 seconds return to normal
mode.
Remote control normal mode
During ECONAVI is ON, when CHECK signal received, if either sensors has abnormality, the 4 times abnormality
counter is ignored, ECONAVI Indicator will blink immediately and error code is memorized.
The unit could operate without ECONAVI.
The ECONAVI indicator blinking could be cancelled by pressing ECONAVI button again.
If the human activity sensor has no abnormality, the CHECK process will end and continue with normal operation.
14.14.2 Sunlight Sensor
During ECONAVI operation, the sunlight sensor detects sunlight intensity coming through windows and
differentiates between sunny and cloudy or night to further optimize energy saving by adjusting the temperature.
Sunlight judgment is as following
Sunlight intensity reset
Judge sunlight intensity
Judge ambient condition
Temperature shift
14.14.2.1 Sunlight Intensity Reset
The sunlight intensity will reset to zero (no sunlight condition) when
o Each time ECONAVI is activated.
o Setting temperature is changed.
o Operation mode is changed.
o Setting temperature is changed.
o Operation mode is changed.
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