Gree GMV5 Series Service Manual page 137

When the project number conflict occurs, you can use the communicator or remote controller to
revise project numbers and solve the conflict. See the manual of the communicator or remote
controller for the method.
③Setting of auto project number deviation on ODU's main board (recommended)
You can set auto IDU project number deviation via the ODU's main board as follows:
(1) After the whole system is commissioned, short press SW3 on the controlling unit and the
system will enter the standby status as follows:
Function Code LED Status Progress LED Status Status LED Status
A7
A6
A2
A8
n0
n1
n2
n3
n4
n5
(2) Press SW2 (▼) on the controlling unit and select n5. Short press SW7 to show the
following information:
Function Code LED Status Progress LED Status Status LED Status
(3)
When project number deviation is to be confirmed, short press SW7 confirmation button
to enter the project number deviation status as shown in the following:
Function
Code
n5
IDU project numbers in all systems will automatically deviate. The conflict will be solved in about
1 minute and the system will work properly.
The automatic deviation function only works when it is enabled on the controlling unit in the
system, of which the centralized control address is 00000.
Note: When there are only a few conflicting IDUs, manual setting is recommended. This method
only applies to conflicting IDUs and does only affect other IDUs' project numbers.
In case of many conflicting IDUs, auto deviation is recommended. This method is faster, but may
change project numbers of normal IDUs. This method applies for the first commissioning after
installation.
Fault
Fault
code
GMV5 DC INVERTER VRF UNITS SERVICE MANUAL
LED1
Flicker
Flicker
Flicker
Flicker
Flicker
Flicker
Flicker
Flicker
Flicker
Flicker
LED1
Solid On
n5
LED1
LED Current
Status Progress/Mode
Solid On
Possible reasons
LED2
00 Flicker
00 Flicker
00 Flicker
00 Flicker
01 Flicker
00 Flicker
00 Flicker
00 Flicker
00 Flicker
00 Flicker
LED2
00 Flicker
LED2
LED
Status
00 Solid On
134
LED3
00 Flicker
00 Flicker
00 Flicker
00 Flicker
00 Flicker
00 Flicker
00 Flicker
00 Flicker
00 Flicker
00 Flicker
LED3
OC Flicker
LED3
Status LED Status
OC Solid On
Solution