Refrigerant charging system

Details Refrigerant charging system Refrigerant charging system

1982-05-10

1984-09-11

Makay, Albert J.

Refrigeration

Processes

Assembling, charging, or repairing of refrigeration producer

62149, 62292, F25B 4500

Patent

active

044702655

ABSTRACT:
An apparatus for charging a refrigeration system with a predetermined amount of refrigerant by weight. The apparatus includes a cylinder which is mounted on top of a strain gauge scale that is first filled from a source of refrigrant and then automatically discharged to fill a refrigeration system with a predetermined amount of refrigerant. The system includes solenoid operated valves which are automatically operated for loading the cylinder and charging the refrigeration system. A vacuum pump is also included in the circuit for placing the refrigeration system under a predetermined vacuum prior to the charging operation.

REFERENCES:
patent: 4261178 (1981-04-01), Cain

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