Gree GMV5E Series Service Manual page 92

GREE
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
Function Code Display Mode
A8
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
Function Code Display Mode
n0
Step 2: Select a corresponding mode by pressing "SW1 (UP)" or "SW2 (DOWN)".
LED1
Function Code Display Mode
n0
n0
Step 3: Press "SW7" to confirm selecting the mode. The master unit is displayed as follows:
LED1
Function Code Display Mode
n0
n0
If no button operations are performed for five minutes, the function setting automatically quits and
the unit restores the current status. (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.)
⑥ n3 Forcible defrosting operation settings
Step 1: Confirm entering the n3 forcible defrosting operation settings. The master unit is displayed
as follows:
LED1
Function Code Display Mode
n3
Step 2: Press "SW7" to confirm entering forcible defrosting. The master module is displayed as
follows:
LED1
Function Code
n3
When the unit reaches defrosting quit conditions, the system automatically quits and restores the
normal operation control.
Current Progress
On 00
Code
On 01
Code
On 01
On 02
Code
On 01
On 02
Current Progress/Mode
On 00
Display Mode Current Progress/Mode
On
GMV5E DC INVERTER VRF UNITS SERVICE MANUAL
LED2
Display Mode
On
LED2
Display Mode
Blinking
LED2
Display Mode
Blinking
Blinking
LED2
Display Mode
On
On
LED2
Display Mode
Blinking
LED2
Display Mode
00 On
88
LED3
Current Status Display Mode
OC On
LED3
Current Status Display Mode
OC Blinking
LED3
Current Status Display Mode
OC Blinking
OC Blinking
LED3
Current Status Display Mode
OC On
OC On
LED3
Current Status Display Mode
00 Blinking
LED3
Current Status Display Mode
00 On