YMGI
•
Your Modern Green Idea
63
If it’s confirmed, press SW7 confirmation button. Unit will display as below and start next progress.
Debugging Code
Progress Code
Status Code
Meaning
Progress
LED1
LED2
LED3
Code
Display
status
Code
Display
status
Code
Display
status
12_Status
judgments of
outdoor valves
before startup
db
Light
12
Light
AE
Light
Manual calculation of refrigerant quantity is set
up.
Step 17:
after unit is confirmed to start debugging, system select cooling/heating mode according to
ambient temperature.
A If cooling mode is selected, relevant display is as below:
Debugging Code
Progress Code
Status Code
Meaning
Progress
LED1
LED2
LED3
Code
Display
status
Code
Display
status
Code
Display
status
15_Cooling
debugging
db
Light
15
Light
AC
Light
Debugging is enabled in cooling mode
(debugging mode, auto-selected by system).
db
Light
15
Light
Error
code
Light
Error occurs during debugging in cooling mode.
db
Light
15
Light
J0
Light
Error of other modules occurs during debugging
in cooling mode.
db
Light
15
Light
U9
Light
Outdoor pipeline and valves are not normal.
db
Light
15
Light
XXXX/
U8
Light
System detects error in indoor pipeline. XXXX
is the project no. of the faulted IDU. 3s later,
error code U8 is displayed. For example, IDU
no. 100 has U8 error, then LED3 displays like
this: 01 (2s later) 00 (2s later) U8, and repeat
again.
B If heating mode is selected, relevant display is as below:
Debugging Code
Progress Code
Status Code
Meaning
Progress
LED1
LED2
LED3
Code
Display
status
Code
Display
status
Code
Display
status
16_Heating
debugging
db
Light
16
Light
AE
Light
Debugging is enabled in heating mode
(debugging mode, auto-selected by system).
db
Light
16
Light
Error
code
Light
Error occurs during debugging in heating mode.
db
Light
16
Light
J0
Light
Error of other modules occurs during debugging
in heating mode.
db
Light
16
Light
U9
Light
Outdoor pipeline and valves are not normal.
db
Light
16
Light
XXXX/
U8
Light
System detects error in indoor pipeline. XXXX
is the project no. of the faulted IDU. 3s later,
error code U8 is displayed. For example, IDU
no. 100 has U8 error, then LED3 displays like
this: 01 (2s later) 00 (2s later) U8, and repeat
again.
