Refrigerant charging method

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United States of America Patent

PATENT NO 11988426
APP PUB NO 20210348816A1
SERIAL NO

17280619

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Abstract

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Efficiency in refrigerant charging work is addressed when a recovered refrigerant recovered from a first heat source unit is to be charged to a second heat source unit. A refrigerant charging method is a charging method used when a first heat source unit of an already installed refrigeration cycle apparatus in which a refrigeration cycle is to be performed by a refrigerant that circulates is to be replaced with a second heat source unit. The refrigerant charging method includes recovering a first refrigerant from an already installed refrigeration cycle apparatus and obtaining a recovered refrigerant and charging the recovered refrigerant and charging a second refrigerant whose composition differs from the composition of the recovered refrigerant to the refrigeration cycle apparatus after renewal that includes the second heat source unit.

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Patent Owner(s)

Patent OwnerAddress
DAIKIN INDUSTRIES LTDUMEDA CENTER BUILDING 4-12 NAKAZAKI-NISHI 2-CHOME KITA-KU OSAKA-SHI OSAKA 5308323 ?5308323

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Iwata, Ikuhiro Osaka, JP 57 243
Kumakura, Eiji Osaka, JP 89 367
Ohkubo, Shun Osaka, JP 101 506
Yamada, Takuro Osaka, JP 93 502
Yoshimi, Atsushi Osaka, JP 74 455

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