Gree GMV-224WM/B-X, Service Manual

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GMV5 DC INVERTER VRF UNITS SERVICE MANUAL
134
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.
③
Setting 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:
LED1 LED2 LED3
Function Code LED Status Progress LED Status Status LED Status
A7
Flicker
00 Flicker 00 Flicker
A6
Flicker
00 Flicker 00 Flicker
A2
Flicker
00 Flicker 00 Flicker
A8
Flicker
00 Flicker 00 Flicker
n0
Flicker
01 Flicker 00 Flicker
n1 Flicker 00 Flicker 00 Flicker
n2 Flicker 00 Flicker 00 Flicker
n3 Flicker 00 Flicker 00 Flicker
n4 Flicker 00 Flicker 00 Flicker
n5 Flicker 00 Flicker 00 Flicker
(2) Press SW2 (▼) on the controlling unit and select n5. Short press SW7 to show the
following information:
(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:
LED1 LED2 LED3
Function
Code
LED
Status
Current
Progress/Mode
LED
Status
Status LED Status
n5 Solid On 00 Solid On OC Solid On
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
code
Fault Possible reasons Solution
LED1 LED2 LED3
Function Code LED Status Progress LED Status Status LED Status
n5
Solid On
00 Flicker OC Flicker