Ultra Heat GMV Multi VRF_Heat Recovery Serial
51
05_Internal
communicatio
n detection
Communication between master
ODU and inverter compressor driver
has error.
Communication between master
ODU and IDUs has error.
Elimination methods of above errors can be found in Troubleshooting.
Step 11: Progress 06 is “Detect outdoor components”.
If no error is detected, system will display as below and then start next progress.
06_Detect outdoor
components
If error is detected, system will stay at current progress. Error has to be solved manually. Related
errors are:
06_Detect
outdoor
components
System detects that outdoor
components have error.
Elimination methods of above errors can be found in Troubleshooting.
Step 12: Progress 07 is “Detect indoor components”.
If no error is detected, system will display as below and then start next progress.
07_Detect indoor
components
If error is detected, system will stay at current progress. Error has to be solved manually. Related
errors are:
07_Detect
indoor
components
System detects error on indoor
components. XXXX means the
project code of IDU with error. 3s
later, related error code will be
displayed.
Elimination methods of above errors can be found in Troubleshooting.
Step 13: Progress 08 is “Confirm preheated compressor”.
At first, make sure that the ODU valves connecting with IDU are opening. Main board will display: