Panasonic CS-Z20TKR Service Manual page 99

14.14.1.12 Human Activity Sensor Check Mode
 To enable Human Activity sensor abnormality check mode, during ECONAVI operation ON:
ON
OFF
TEMP
ON
OFF
TEMP
ON
OFF

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
14.14.2.1 Sunlight Intensity Reset

The sunlight intensity will reset to zero (no sunlight condition) when
Each time ECONAVI is activated.
o
Setting temperature is changed.
o
Operation mode is changed.
o
Remote control normal mode
Press continously for 5s
SET
iAUTO-X
SET
TEMP
iAUTO-X
SET
TEMP
iAUTO-X
SET
Sunlight intensity reset
Judge sunlight intensity
Judge ambient condition
Temperature shift
Transmit ECO demo code
and after 30 seconds return to normal
mode.
Transmit sunlight sensor check code
and after 30 seconds return to normal
mode.
Transmit check code
and after 30 seconds return to normal
mode.
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