Gree FGR20Pd/DNa-X Owner's Manual page 30

4.2.2.2 Debugging Process
Debugging procedure for test run, display instruction for indicator on main
board of outdoor unit and operation method are as below:
——
Progress
Start
01_Master unit
setting
02_Address
allocation
03/ quantity of
modules in the
03_ Confirm
quantity of
outdoor units
Ducted Type Split Air-Conditioner Units(Inverter Series)
Description of each stage of debugging progress
Debugging code
LED
Display
Display code
status
A0 Always ON
Display
01/CC
repeatedly
Display
01/CF
repeatedly
Display
01/oC
repeatedly
02 Bllink
Display
02/L7
repeatedly
Display
02/oC
repeatedly
Display
repeatedly
system
Display
03/oC
repeatedly
Instruction for Code and Operating Method
No debugged yeat. Press "SW3" button consecutively in the
master module for over 5s to enter auto debugging.
The system has no master unit.
Debugging can't be continued, all buttons are invalid,
disconnect the power to reset the correct "SA6" DIP.
The system has two or more master units.
Debugging can't be continued, all buttons are invalid,
disconnect the power to reset the correct "SA6" DIP.
The system has only one master unit.
After displaying once circularly, the system will enter the next
step automatically.
The system is allocating address, which might takes 10s.
No master indoor unit.
It will display for 1min continuously. The user can set master
through debugging the software within 1min. If no master unit
is set manually within 1min, the system will set the indoor unit
with the smallest IP address automatically as the master
Address allocation of the system is complete with master
After displaying once circularly, the system will enter the next
step automatically.
Confirmation of quantity of modules in the system.
To differentiate from the debugging step, the QTY of module
will display only 1-digit on the right.
After 10S, all the nixie tubes of modules will display "03" and
"oC", after displaying once circularly, the system will enter the
next step automatically.
25
indoor unit.
indoor unit.