GREE DC Inverter Multi VRF System II Service Manual
82
2.3.3 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 LED2 LED3
Function code
Current progress/mode
Current status
n3 On
00 Blink
00 Blink
Press SW7 to confirm. When system enters this function, main board of outdoor unit will display as
below:
LED1 LED2 LED3
Function code
Current progress/mode
Current status
n3 On
00 On
00 On
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.
2.3.4 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.
2.3.5 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:
Code setting SA6
Static pressure
(Pa)
DIP1 DIP2
0 0 0
1 0 20
Note: code of number side is “1”; default code of SA6 is “00”.
To Next Page
Loading...
Need help?
General
