Water-cooled Heat Recovery DC Inverter VRF
46
-
Debugging code
Progress code
State code
Meaning
progress
LED1
LED2
LED3
Code
Display
state
Code
Display
state
Code
Display
state
15_Cooling
debugging
db
ON
15
ON
AC
ON
Debugging is enabled in cooling mode
(debugging mode, auto-selected by
system).
db
ON
15
ON
Error
code
ON
Error occurs during debugging in cooling
mode.
db
ON
15
ON
J0
ON
Error of other modules occurs during
debugging in cooling mode.
db
ON
15
ON
U9
ON
Outdoor pipeline and valves are
abnormal.
db
ON
15
ON
XXXX
/U8
ON
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
State code
Meaning
progress
LED1
LED2
LED3
Code
Display
state
Code
Display
state
Code
Display
state
16_Heating
debugging
db
ON
16
ON
AE
ON
Debugging is enabled in heating mode
(debugging mode, auto-selected by
system).
db
ON
16
ON
Error
code
ON
Error occurs during debugging in
heating mode.
db
ON
16
ON
J0
ON
Error of other modules occurs during
debugging in heating mode.
db
ON
16
ON
U9
ON
Outdoor pipeline and valves are
abnormal.
db
ON
16
ON
XXXX
/U8
ON
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.
Step 17:
if there’s no error during operation for about 40mins, system automatically confirms that
debugging is finished and then stop. System resumes standby mode and displays as below:
-
Debugging code Progress code
State code
Meaning
progress
LED1
LED2
LED3
Code
Display
state
Code
Display
state
Code
Display
state
17_Debugging
finished
01-0
4
ON
OF
ON
OF
ON
Debugging is finished. System is on
standby mode. LED1 displays module
address. LED2 and LED3 display “OF”.
Step 18:
after debugging is finished, some functions can be set according to project’s actual
needs. For specific details, please refer to System Functions Setup. If no special requirement, skip
this step.
Summary of Contents for GMV-WQ120WM/A-F
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