Refrigeration – With means for charging closed refrigeration producing system
Patent
1994-12-27
1996-08-13
Bennett, Henry A.
Refrigeration
With means for charging closed refrigeration producing system
62129, 62475, F25B 4500
Patent
active
055444946
ABSTRACT:
Refrigerant is purified by circulating the refrigerant in a closed path from a first refrigerant container through a filter/dryer unit back to the first refrigerant container. Air and other non-condensibles are purged from the refrigerant in the first storage container during this refrigerant circulation process. Following the non-condensible purging operation, the refrigerant in the first container is transferred through a filter/dryer unit into a second refrigerant container. This second refrigerant container is evacuated prior to transferring the purified refrigerant thereto. Capacity of the filter/dryer unit is monitored, either by monitoring time of operation of the refrigerant pump or monitoring wetness of the circulated refrigerant with the sight gauge.
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Manz Kenneth W.
Olds Daniel L.
Bennett Henry A.
Doerrler William C.
SPX Corporation
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