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- First Assistant Engineer (Steam-Motor-Gas Turbine Plants (Unlimited)) »
- Q512 - General Subjects II
405. When recovering the remaining R-134a refrigerant from the centrifugal chiller shown in the illustration as a vapor using the recovery unit's compressor, in addition to opening valves «1a», «1b», and the compressor suction and discharge isolation valves, which of the following would be the correct valve lineup
To recover refrigerant vapor from a centrifugal chiller, valves 3, 4, and 6 must be open, while valves 2, 5, 7, 8, and 10 must remain closed to ensure refrigerant flows through the compressor and condenser into the storage tank without bypassing.
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