Gree GMV-280WL/C-X - ODU Quiet Function

GREE DC Inverter Multi VRF System II Service Manual
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compulsory defrosting (n3)
After selecting relevant functions, press SW7 to confirm and start setting this function. Main board of
outdoor unit will display as below:
LED1 LED2 LED3
Function code
Display
Current progress
Display
Current status
Display
A7 On 00 Blink oC Blink
A6 On nA Blink nA Blink
n3 On 35 Blink oC Blink
2.3.1 ODU Quiet Function
This function is suitable for projects that have strict requirements for noise. It includes two modes:
smart night silent mode, compulsory silent mode.
When unit enters function setting, main board of outdoor unit will display as below:
LED1 LED2 LED3
Function code
Display
Current progress
Display
Current status
Display
A7 On 00 Blink oC Blink
Press SW1 button (▲) and SW2 button (▼) to select the following silent modes.
LED1 LED2 LED3
Function code Silent mode
Display
Current status Display
A7 00~12 Blink oC Blink
When applicable mode is selected, press SW7 to confirm. Main board of outdoor unit will display as
below:
LED1 LED2 LED3
Function code Silent mode
Display
Current status Display
A7 00~12 On oC On
Notice: code 00 of LED2 refers to normal mode. Codes 01~09 refer to smart night silent mode.
Codes 10~12 refer to compulsory silent mode. When setting is finished, master unit will memorize it so
that it can’t be cancelled even when power is on or off.
Then press SW6 on the master unit to return to the previous step. (If this button is pressed when
function is being set, system will return to the previous step. If SW6 is pressed when setting is finished,
system will resume displaying the current operation status.)
If then no motion is taken to the master unit for 5min, unit will exit and resume displaying the current
status.