DC Inverter Multi VRF System
38
Press SW7 to confirm. When system enters this function, main board of outdoor unit will
display as shown below:
LED1
LED2
LED3
Function code Display Current progress/mode Display Current status Display
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.
8.4 Restore Factory Defaults
(1) 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 display
for finished debugging is “0”.
(2) 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 display
for finished debugging remains the same.
(3) 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 display 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:
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”.
