Water-cooled Heat Recovery DC Inverter VRF
42
-
Debugging code
Progress code
State code
Progress
LED1
LED2
LED3
Code
Display state
Code
Display state
Code
Display state
04_Confirm the
quantity of
IDUs
db
ON
04
ON
Quantity of
connected
IDUs
blink
If the displayed quantity is the same as actual quantity, then press SW3 button on the master unit
to confirm it. System will go to next progress.
-
Debugging code
Progress code
Status code
Progress
LED1
LED2
LED3
Code
Display state
Code
Display state
Code
Display state
04_Confirm the
quantity of
IDUs
db
ON
04
ON
OC
ON
If the displayed quantity is different from actual quantity, power off the whole system and check
whether connection of communication wire among each IDU is correct. After checking, start
debugging again.
Step 8:
progress 05 is “Detect internal communication”
If no error is detected, system displays as below and go to next progress.
-
Debugging code
Progress code
State code
Meaning
progress
LED1
LED2
LED3
Code
Display
state
Code
Display
state
Code
Display
state
05_Detect
internal
communication
db
ON
05
ON
OC
ON
Detection is finished. Go to next
progress.
If error is detected, system stays at current progress. Error has to be solved manually. Below are
relevant errors:
-
Debugging code
Progress code
State code
Meaning
progress
LED1
LED2
LED3
Code
Display
state
Code
Display
state
Code
Display
state
05_Detect
internal
communication
db
ON
05
ON
C2
ON
System detects “driven
communication error between PCB
and inverter compressor driven
board”.
db
ON
05
ON
CH
ON
IDU/ODU “high proportion of rated
capacity”.
db
ON
05
ON
CL
ON
IDU/ODU “low proportion of rated
capacity”.
Elimination methods of above errors can be found in Troubleshooting.
Step 9:
progress 06 is “Detect outdoor components”
If no error is detected, system will display as below and then start next progress.
Summary of Contents for GMV-WQ120WM/A-F
Page 58: ......
