5. In cooler ambients, it may be necessary to run the compressor in order to complete charging.
IMPORTANT! TO BE CLEARLY UNDERSTOOD PRIOR TO RUNNING ANY SCROLL COMPRESSOR
Scroll compressor systems should be charged as quickly as possible by bleeding liquid
refrigerant into the suction line with the compressor running.
DO NOT VAPOR CHARGE SCROLL CONDENSING UNIT SYSTEM!
6. The system needs to be operated down to its set point before you can be sure that the charge
is correct. It is at this point that the normal refrigeration operational checks can be carried out
—such as checking the liquid line sight glass for bubbles and the operating pressures.
7. If the system is still short of the refrigerant, bleed liquid refrigerant into the suction side with
the compressor running.
8. Check the oil level and add oil if necessary.
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