Gree GMV6 DC Inverter VRF Units Service Manual
57
②
The compressor emergency operation mode is valid only in single-module multi-compressor
system;
③
The default status is 00.
④
The system cannot run continuously for more than 24 hours in compressor emergency
operation status. If it exceeds 24 hours, the entire system is forcibly stopped, and the indoor
unit displays the "Ad" limit operation code.
4.2.3.12 C9 Fan Failure Emergency Operation
This function is after-sales emergency setting when a fan on a dual-fan module works abnormally. It
shields the abnormal fan in a short time to ensure the emergency operation of the system.
Setting steps:
Enter the function setting on the main board of the faulty basic module. The module displays as
follows:
LED1
LED2
LED3
Function code
Display status
Current process
Display status
Current status
Display status
C9
On
00
Blinks
OC
Blinks
Press the SW1 up button and the SW2 down button to select the corresponding compressor
emergency operation status.
LED1
LED2
LED3
Description
Function
code
Display
status
Current
process
Display
status
Current
status
Display
status
C9
On
00
Blinks
OC
Blinks
Fans 1 and 2 run normally.
C9
On
01
Blinks
OC
Blinks
The operation of fan 1 is
shielded.
C9
On
02
Blinks
OC
Blinks
The operation of fan 2 is
shielded.
After selecting the corresponding value, press the SW3 confirm button. All modules display as follows:
LED1
LED2
LED3
Function code
Display status
Mode
Display status
Current status
Display status
C9
On
00
On
OC
On
C9
On
01
On
OC
On
C9
On
02
On
OC
On
The basic module memorizes this setting and does not clear it even upon power failure and power-
on again. The default value is 00.
Then, press the SW4 back button to return to the previous process. (During setting, press SW4 to
return to the previous process. If the setting is completed, press SW4 to resume the unit to the current
normal working status.)
If you do not press any button in 5 minutes, the system will automatically exit the current screen and
the unit will resume displaying the current status.
If a basic module sets compressor failure emergency operation, the status indicators and LEDs on
the module indicate the corresponding status.
Summary of Contents for GMV6 Series
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