Gree GMVVQ224WM/C-X - Page 60

GMV Heat Recovery DC Inverter VRF
56
Fig.4.2.1
(2) When starting up the debugging, the system automatically selects the operating mode
according to the current ambient temperature.
(3) When debugging, the front panel of the outdoor unit must be completely closed, otherwise it
will affect the accuracy of debugging (as shown in the Fig. as below).
Fig.4.2.2
(4) Display instruction for each stage progress at the time of debugging:
Instruction for each stage progress at the time of debugging
—
Debugging code
Progress code
Status code
Meaning
Progress
LED1
LED2
LED3
Code
Display
status
Code
Display
status
Code
Display
status
01_ set up
master unit
db
ON
01
ON
A0
ON
Undebugged status.
db ON 01 ON CC ON
The system hasn’t set master module.
It needs to reset it.
db ON 01 ON CF ON
The system has set more than 2
master modules. It needs to reset it.
db ON 01 ON OC ON
Master module setting is succeeded. It
will automatically enter into the next
step.
02_ allocate
addresses
db ON 02 ON Ad Flash
The system is conducting the address
assignment.
db ON 02 ON OC ON
Address assignment is succeeded. It
will automatically enter into the next
step.