Heat exchanger, method of reusing and recovering refrigerant the

Details Heat exchanger, method of reusing and recovering refrigerant the Heat exchanger, method of reusing and recovering refrigerant the

1999-07-26

2000-12-12

Ferensic, Denise L.

Refrigeration

Processes

Assembling, charging, or repairing of refrigeration producer

62299, 62298, F25B 4500

Patent

active

061582298

ABSTRACT:
In order to seal in refrigerant in a heat exchanger as much quantity as possible till to reuse the refrigerant at a new place of the heat exchanger after transfer or till to recover the refrigerant at a refrigerant recovery site, even when electricity is suspended to the new place or when outside temperature is lower than a certain temperature at the place where the heat exchanger such as an air conditioner having a separated interior instrument and exterior instrument is being installed, two on-off valves are provided in the refrigerant piping of the interior instrument besides two on-off valves provided in the refrigerant piping of the exterior instrument, or on-off valves are provided in each connecting pipe connecting with the refrigerant piping of the interior instrument and the refrigerant piping of the exterior piping, and the refrigerant is sealed in by closing all the on-off valves.

REFERENCES:
patent: 3578073 (1971-05-01), Bosquain
patent: 3611743 (1971-10-01), Manganaro
patent: 4285206 (1981-08-01), Koser
patent: 5191770 (1993-03-01), Kim
patent: 5297395 (1995-12-01), Ozu et al.
patent: 5471848 (1995-12-01), Major et al.
patent: 5479788 (1996-01-01), Roegner
(1) A. Althouse et al., "Modern Refrigeration and Air Conditioning", 1988.

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