30 Chapter 5 System Power-On Commissioning
Liebert.CRV+ Series Air Cooled Precision Air Conditioner User Manual
When the compressor starts and operates, charge gas refrigerant (R410A) dynamically till there is no air bubble in
the sight glass, the condensing subcooling degree reaches above 3K, and the suction overheating degree reaches
above 7K.
Observe the compressor suction pipes and make sure there is no water condensing on the surface of the compressor
and the pipes, so as to avoid the risk of slugging the compressor.
The unit discharging overheating degree is within 25°C ~ 50°C.
5.2.3 Checklist For Completed Commissioning
After commissioning, confirm the items listed in Table 5-1.
Table 5-1 Inspection after commissioning
Check item Result
Check that all output functions are automatic
Check that the temperature & humidity settings and control
precisions are set reasonable
Make sure all the other functions are set reasonable
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