Refrigerant accumulator and charging apparatus and method for va

Refrigeration – Refrigeration producer – Compressor-condenser-evaporator circuit

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62125, F25B 4300

Patent

active

044740344

ABSTRACT:
A refrigerant fluid accumulator and charging apparatus for vapor-compression refrigeration systems comprising a pressure vessel having an interior liquid/vapor separation chamber, a liquid reservoir, a refrigerant inlet conduit, a primary refrigerant vapor outlet conduit and a secondary refrigerant outlet conduit in communication with a sump portion of the reservoir and with the primary outlet conduit. The secondary refrigerant outlet conduit includes a sight glass for observation of the flow of fluid from the sump into the compressor suction line. Refrigeration systems may be accurately charged with refrigerant fluid by operating the system at design load conditions with the accumulator and charging apparatus interposed in the refrigerant circuit between the evaporator and the compressor and by venting refrigerant fluid from the system until the flow of fluid through the secondary outlet conduit changes from liquid or mixed phase to substantially the vapor phase.

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