Gree GMV-280WM/E1-X - Page 90

GREE GMV5E DC INVERTER VRF UNITS SERVICE MANUAL
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unit).
If no button operations are performed on the master unit for five minutes, the function setting
automatically quits and the unit restores the current status.
The default factory setting is “00”, that is, no silent mode.
② A6 Unit cooling/heating function settings
Step 1: Confirm entering the A6 unit cooling/heating function settings. The master unit is displayed
as follows:
LED1
LED2
LED3
Function Code
Display Mode
ODU Function Mode Code
Display Mode
ODU Function Mode Code
Display Mode
A6
On
nC
Blinking
nC
Blinking
Step 2: Select a corresponding cooling/heating function by pressing "SW1 (UP)" or "SW2 (DOWN)".
LED1
LED2
LED3
Function Code
Display Mode
ODU Function Mode Code
Display Mode
ODU Function Mode Code
Display Mode
A6
On
nC
Blinking
nC
Blinking
A6
On
nH
Blinking
nH
Blinking
A6
On
nA
Blinking
nA
Blinking
A6
On
nF
Blinking
nF
Blinking
Step 3: Press "SW7" to confirm selecting the mode. The master unit is displayed as follows:
LED1
LED2
LED3
Function Code
Display Mode
ODU Function Mode Code
Display Mode
ODU Function Mode Code
Display Mode
A6
On
nC
On
nC
On
A6
On
nH
On
nH
On
A6
On
nA
On
nA
On
A6
On
nF
On
nF
On
On the master unit, press "SW6" to return to the upper level (press "SW6" in setting status to return
to the upper level; press "SW6" after settings are completed to restore the normal operating status of the
unit).
If no button operations are performed on the master unit for five minutes, the function setting
automatically quits and the unit restores the current status.
The default factory setting is “nA” cooling/heating.
③ A2 Indoor unit pipeline refrigerant recovery
Step 1: Confirm entering the A2 refrigerant recovery operation settings. The master unit is displayed
as follows:
LED1
LED2
LED3
Function Code
Display Mode
Refrigerant Recovery Code
Display Mode
Current Status
Display Mode
A2
On
01
Blinking
00
Blinking
Step 2: The default setting is “01”. Select "01" or "02" by pressing "SW1 (UP)" or "SW2 (DOWN)".
Press "SW7" to confirm selecting the mode.
On the master unit, press "SW6" to return to the upper level.
If no button operations are performed on the master unit for five minutes, the function setting
automatically quits and the unit restores the current status.
 Indoor unit refrigerant recovery
Step 3: Select "01” as in step 2 to enter IDU refrigerant recovery. Digital LEDs and status LEDs of all