GREE Air-ccoled Closed Control Unit Service Manual
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Ⅱ Control
1 Control of the Unit
1.1 General Control
When the unit is energized, the system starts to detect each part. If there is malfunction,
malfunction code will be displayed and relevant procedure will be entered. If there is not
malfunciton, the unit will operate according to command from display panel. When the unit is
started up, the unit will judge if there is auto operation command or manual debugging
command from the display panel. If there is manual debugging command, the unit will operate
at manul debugging mode. If there is malfunction during operation, the relevant procedure will
be entered. If there is turning off command, the unit will enter turning off procedure.
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