D.C. Inverter Multi VRF Modular
53
04_Confirm the
quantity of IDUs
Quantity of
connected
IDUs
If the quantity displayed is the same with actual quantity, then press SW7 confirmation button
on the master unit to confirm it. Unit will start next progress:
04_Confirm the
quantity of IDUs
Step 9:
progress 05 is “Detect internal communication”
If no error is detected, system will display as below and then start next progress.
05_Detect
internal
communication
Detection is finished. Start next progress.
If error is detected, system will stay at current progress. Error has to be solved manually.
Below are relevant errors:
05_Detect
internal
communication
System detects “driven communication
error between master unit and inverter
compressor”.
System detects “driven communication
error between master unit and inverter
fan”.
IDU/ODU “high proportion of rated
capacity”.
IDU/ODU “low proportion of rated
capacity”.
Elimination methods of above errors can be found in Troubleshooting.
Step 10: 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
No error is detected in outdoor
components. Start next progress.
If error is detected, system will stay at current progress. Error has to be solved manually.
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