Forced Defrosting; Restore Factory Defaults; Static Pressure Function - Gree GMV-140WL/A-T User Manual

8.3 Forced Defrosting

This function can only be set when outdoor compressor is running.
Upon entering this function, main board of outdoor unit will display as below:
LED1
Function code
n3
Press SW7 to confirm. When system enters this function, main board of outdoor unit will
display as below:
LED1
Function code
n3
Then unit will be in compulsory defrosting mode. Once unit is under compulsory defrosting,
this mode can only be stopped when requirements for exit are met.

8.4 Restore Factory Defaults

i.If you want to restore factory defaults, hold SW8 button on the main board of ODU for more
than 10s, then all LEDs will blink for 3s. Main board will cancel all setting, including the IP
addresses and project codes of IDU and ODU. The mark for finished debugging is "0".
ii.If you want to restore factory defaults and don't need project debugging, then hold SW3 and
SW8 on the main board of ODU for more than 10s, then all LEDs will blink for 5s. All settings are
cleared out, including the IP addresses and project codes of IDU and ODU. The mark for finished
debugging remains the same.
iii.When you only want to restore the default functions, hold SW5 and SW8 button for more
than 10s, then all LED will blink for 7s. All function settings are cleared out, but IDU and ODU's
project codes and the mark for finished debugging remain the same.

8.5 Static Pressure Function

If ODU's installation area is not convenient for releasing air and users do not have strict
requirements for ODU noise, this function can be set to satisfy the heat exchange of ODU.
Before power on, set codes of SA6 of main board. The relevant static pressure is:
Note: code of number side is "1"; default code of SA6 is "00".
LED2
Display Current progress/mode
On 00
LED2
Display Current progress/mode
On 00
Code setting SA6
DIP1 DIP2
0 0
1 0
DC Inverter Multi VRF System User Manual
Display Current status
Blink
Display Current status
On
Static pressure
（Pa）
0
20
30
LED3
Display
00 Blink
LED3
Display
00 On