Toshiba RAV-GM562ATP-TR Service Manual page 84

[Confirmation method with LEDs on outdoor unit]
1) Ensure the LED display shows the initial state. If not then it can be returned to the initial state by pushing
and holding down SW01 and SW02 at the same time for at least 5 seconds.
2) Push SW01 several times unit reaching the 'refrigerant leak indication' LED display.
D800 D801 D802 D803 D804
3) Briefly pushing SW02 enables the presence of a leak to be detected using the LED display.
D800 D801 D802 D803 D804
: Go ON, : Go OFF,
4) Before exiting, push and down SW01 and SW02 at the same time for at least 5 seconds and set the LED
to the initial state.
* During the test run mode, D800~804 will be turned off, so please check the LEDs after the test run mode
is finished.
[Confirmation method with remote controller]
You can use "Monitor function" on the remote controller to check the progress of the judgment or the
result of the judgment. Please refer to the instruction manual of the remote controller or indoor unit for the
confirmation method.
CODE No.
7A Pd : Refrigeration cycle high pressure (x100)(*1)
7B Ps : Refrigeration cycle low pressure (x100)(*1)
E3
* 1 When a pressure sensor is installed in the unit, the sensor detection value is always displayed. If the
unit is not equipped with a pressure sensor, the estimated value based on the sensor temperature will be
displayed only during "Test run" operation, but it will be displayed approximately 20 minutes after the start
of "Test run" operation.
When removing the piping, check the gauge manifold for the presence of refrigerant even if the estimated
pressure value checked immediately before is zero or low.
* 2 Refrigerant leak detection status
0 : During initial operation or when indoor or outdoor temperature conditions are not satisfied or when
the refrigeration cycle is not stable and cannot be detected.
1 : Refrigerant cycle is not stable and cannot be detected.
2 : No refrigerant leak detected during detection for a certain period of time, but judgment is on going.
3 : There is a possibility of refrigerant leakage.
4 : No possibility of refrigerant leakage.
5 : The status is not known because detection could not be performed due to unsatisfactory indoor or
outdoor temperature conditions or unstable refrigeration cycle.
0~2 shows the progress displayed during test run mode. If the status is "0" after 30~40 minutes, it is
probably because the indoor and outdoor air temperature conditions are out of condition.
3~5 are the results displayed after the test run mode operation is completed. If the value is "3" or "5"
the refrigerant may be insufficient. Please check the status of the refrigeration cycle by referring to the
information in "3 OUTDOOR UNIT REFRIGERATING CYCLE DIAGRAM".
D805
Refrigerant leak indication
Displays if a certain amount of refrigerant has leaked.
Judgment
D805
No refrigeration leak detected
Refrigeration leak detected
: Flashing (1 times/sec.)
Data name
Refrigerant leak detection statue
Unit
MPa
MPa
*2
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