Gree GMV-VQ680WM/C-X Service Manual page 34

Gree
Step 16: After the unit debugging method is confirmed, the system automatically selects cooling or
heating mode according to the ambient temperature.
Once cooling/heating mode is selected, the relevant display is as below.
Debugging
—
code
LED1
Progress
Code
db
db
db
13~15_ pilot
run stage
db
db
db
Note: In the pilot run stage, the unit will display corresponding procedures according to actual
circumstances.
Once debugging is completed, resume the standby status and the display is as below:
Debugging code
LED1
Display
Code
status
01~04 ON
Once the debugging for the complete unit is finished, please set relevant functions for the unit
according to the actual functional requirements of the project. Refer to relative technical materials for the
detailed operation method. If there is no special requirement, skip this step directly.
When delivery it to the user for operation, explain the precautions to the user.
3.2.2.4 Unit Commissioning on Commissioning Software
Step 1: Install the commissioning software.
Install the commissioning software on a PC, and connect the monitoring communication cable. (For
details, see Gree Debugger.)
Step 2: Cover all the front panels of the outdoor unit.
Step 3: Set the master module.
Keep the outdoor unit disconnected from the power and set one module to the master unit as
follows:
Progress code
LED2 LED3 LED1
Display Display
Code
status status
13/14/1
ON ON
5
13/14/1
ON ON
5
Correspo
13/14/1
ON ON
5
13/14/1
ON ON
5
13/14/1
ON ON
5
13/14/1
ON ON XXXX/U8
5
Progress code
LED2
Display
Code
status
OF ON
GMV6 HR DC Inverter VRF Units Service Manual
Status code
LED2 LED3
Display
Code
status
Pilot run of cooling mode
AC ON
Pilot run of heating mode
AH ON
nding There's fault on pilot run stage.
ON
Note: fault module display
error
code
There's fault on pilot run stage.
J0 ON
Note: non-fault module display
Outdoor unit's pipeline or valve is abnormal.
U9 ON
The system detected the indoor unit's pipeline
is abnormal. XXXX indicates engineering
number of fault indoor unit. 2s later, U8 fault
ON
occurred for No. 100 indoor unit. LED3 will
display as below: 01 (2s later) 00 (2s later) U8,
and it will display like that circularly.
Status code
LED3
Display
Code
status
OF ON
32
Meaning
Meaning
The complete unit has finished the
debugging and it stays at standby
status. LED1 displays module
address; LED2 and LED3 displays
"OF".