Westinghouse WHU09DHA21S Service Manual page 52

Query by 7 segment display
DC-Inverter outdoor control board
7 segment display Introduction
It can be used to check outdoor running parameters.
There are 3 buttons on the digital display board：
1) SWITCH button: Indoor parameters and outdoor parameters can be selected in turn by pressing it.
"P."-outdoor unit parameter, "H."-indoor unit parameter;
2) INCREASE button: Each time it is pressed, the number rises by 1,hold down it, the number will
3) DECREASE button: Each time it is pressed, the number lowers by 1,hold down it, the number
4) The parameters will be displayed after 3s when the checking numbers are selected.
SW1 SW2
SWITCH INCREASE DECREASE
be rapidly increased;
will be rapidly decreased.
7 segment display
Digital Display Switch
SW3
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