Gree GMV5 - Page 111

GREE Photovoltaic Direct-driven Inverter Multi VRF Units
107
If no operations are performed after the high-pressure value displayed on LED3 continually blinks
for three minutes, the entire unit will be forcibly stopped.
On the master unit, press "SW6" to return to the upper level for restoring the standby status of the
entire unit (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).
NOTICE!
Before the basic module refrigerant recovery operation, users must close the liquid-tube stop valve
of the basic module requiring refrigerant recovery.
Another startup is not allowed within 10 minutes after refrigerant recovery.
(4) A8 Aftersales vacuuming mode settings
Step 1: Confirm entering the A8 aftersales vacuuming mode settings. The master unit is displayed
as follows:
LED1
LED2
LED3
Function Code
Display Mode
Current Progress
Display Mode
Current Status
Display Mode
A8
On
00
Blinking
OC
Blinking
Enter the to-be-confirmed status of system vacuuming mode settings.
Step 2: Press "SW7" to confirm entering the to-be-confirmed status of system vacuuming mode
settings. All modules are displayed as follows:
LED1 LED2 LED3
Function Code Display Mode Current Progress Display Mode Current Status Display Mode
A8 On 00 On OC On
Expansion valves and electromagnetic valves of all outdoor and IDUs are opened, and the entire
unit cannot be enabled.
Press "SW6" on the master unit to quit the vacuuming status. Alternatively, the entire unit quits the
vacuuming status after 24 hours.
(5) n0 System conservation operation settings
Step 1: Confirm entering the n0 system conservation operation settings. The master unit is
displayed as follows:
LED1 LED2 LED3
Function Code
Display Mode
Code
Display Mode
Current Status
Display Mode
n0 On 01 Blinking OC Blinking
Step 2: Select a corresponding mode by pressing "SW1 (UP)" or "SW2 (DOWN)".
LED1
LED2
LED3
Function Code Display Mode Code Display Mode Current Status Display Mode
n0 On 01 Blinking OC Blinking
n0 On 02 Blinking OC Blinking
Step 3: Press "SW7" to confirm selecting the mode. The master unit is displayed as follows:
LED1 LED2 LED3
Function Code Display Mode Code Display Mode Current Status Display Mode
n0 On 01 On OC On
n0 On 02 On OC On