Gree GMV6 DC Inverter VRF Units Service Manual
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Press and hold the SW4 back button on the master unit for over 5 seconds to make all indoor units
exit displaying the engineering numbers and return to the upper operation level.
If you do not press any button on the master unit to exit indoor unit engineering SN query in 30
minutes, the system will automatically exit the current screen and the unit will resume displaying the
current status.
4.2.4.4 n9 Online Indoor Unit Qty Query
Introduction:
This function directly uses the outdoor unit to query the quantity of online indoor units.
Operations:
In n9 online indoor unit qty query status, the module displays as follows:
LED1
LED2
LED3
Function Code
Display status
Current process/mode
Display status
Current status
Display status
n9
On
AC or AH
On
00
Blinks
LED2 displays the left two digits of the quantity, and LED3 displays the right two digits. For example,
if the indoor unit quantity is 75, 0075 is displayed.
If there are two levels of menus on the master unit, you can press the SW4 back button to return to
the previous level. Press the SW4 query button again to exit query status.
If you do not press any button on the master unit in 5 minutes, the system will automatically exit the
current screen and the unit will resume displaying the current status.
Note:
This function can query the quantity of indoor units only on a single-system network.
4.2.4.5 nb Outdoor Unit Barcode Query
Introduction:
This function queries the barcodes of the outdoor unit and controller.
Operations:
Press the SW1 up button and the SW2 down button to select outdoor unit barcode query. The
master unit displays as follows:
LED1
LED2
LED3
Function Code
Display status
Current process/mode
Display status
Current status
Display status
nb
Blinks
00
Blinks
00
Blinks
Press the SW3 confirm button on the master unit to enter the next level of menu. The module
displays as follows:
LED1
LED2
LED3
Function Code
Display status
Module address
Display status
Current status
Display status
nb
On
01
Blinks
00
Blinks
nb
On
02
Blinks
00
Blinks
nb
On
03
Blinks
00
Blinks
nb
On
04
Blinks
00
Blinks
Press the SW1 up button and the SW2 down button to select the corresponding query module, and
press the SW3 confirm button. The unit displays as follows: