Gree FGR20Pd/DNa-X Owner's Manual page 29

Ducted Type Split Air-Conditioner Units(Inverter Series)
Flow-process diagram of debugging:
01:Set master unit
02:Allocate addresses
03:Confirm the quantity of ODU
04:Confirm the quantity of IDU
05:Detect ODU's internal communication
06:Detect outdoor components
07:Detect indoor components
08:Confirm preheated compressor
09:Confirm status of valve of ODU
10:Debugging completed status
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