Huawei NetCol8000-A Maintenance And Troubleshooting Manual page 9

Indoor Unit - Compressor Monthly M
aintenance
Inspection
No.
Method
Visual
1 Check the four compressor fxing screws are frm.
inspection
Visual Check that the angle valves on the compressors have
2
inspection no oil stain.
Visual Check that the oil sight glass has no many air bubbles
3
inspection and make sure watch the oil level.
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Operations Troubleshooting
Tighten the screws.
Clean no oil stain.
If many air bubbles
continue to occur for
a long time, the
superheat
degree is too low.
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