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9-3-2. Service Support Function (LED Display, Switch Operation)
1. Outline
A various setup and operation check can be performed by DIP switches at 3 positions
(SW802, SW803, SW804) and the pushdown button switches (SW800, SW801) at 2 positions.
Operation part
Display part
∗ All LED are colorless when it goes off.
Part No.
D502
D503
D800 to D804
D805
Specifications
Orange LED
Green LED
Yellow LED
Green LED
Operation contents
Indoor/Outdoor communication (Serial communication) signal display
(Receive signal from indoor signal)
Indoor/Outdoor communication (Serial communication) signal display
(Send signal from outdoor signal)
Error display
When all SW803 are OFF, or when any of D800 to D804 goes on, LED
displays that the outdoor controller detects an error.
When status of SW803 is other than OFF, various indications are displayed.
Power-ON display
When the power of the outdoor unit is turned on, LED goes on.
When SW801 and SW804 operate the specific operation, LED flashes.
Part No.
SW800
SW803
SW801
SW804
SW802
Specifications
Pushdown button switch
DIP switch
Pushdown button switch
DIP switch
DIP switch
Operation contents
Exchanges the displayed contents of LED (D800 to D804) on the outdoor
control P.C. board.
Performs the specific operation to check maintenance.
Performs various initial settings. (Refer to 9-3-1.)
SW800 SW801 SW806
D502 D503
SW802 SW803
LED
ON
1234
ON
1234
SW804 SW805
ON
1234
ON
1234
D805
D804
D803
D802
D801
D800
D805
D804
D803
D802
D801
D800
Enlarged view of
LEDs