US 12,066,227 B2
Air-conditioning management system and refrigerant recovery management apparatus
Yuuta Iyoshi, Osaka (JP); Yoshiki Yamanoi, Osaka (JP); and Kumiko Saeki, Osaka (JP)
Assigned to DAIKIN INDUSTRIES, LTD., Osaka (JP)
Filed by DAIKIN INDUSTRIES, LTD., Osaka (JP)
Filed on Aug. 19, 2022, as Appl. No. 17/891,962.
Application 17/891,962 is a continuation of application No. PCT/JP2021/010732, filed on Mar. 17, 2021.
Claims priority of application No. 2020-078286 (JP), filed on Apr. 27, 2020.
Prior Publication US 2022/0390159 A1, Dec. 8, 2022
Int. Cl. F25B 45/00 (2006.01); F25B 49/02 (2006.01)
CPC F25B 45/00 (2013.01) [F25B 49/02 (2013.01); F25B 2345/002 (2013.01); F25B 2345/003 (2013.01); F25B 2700/04 (2013.01)] 20 Claims
OG exemplary drawing
 
1. An air-conditioning management system comprising:
an air conditioning apparatus configured to carry out a refrigerant recovery operation of recovering a refrigerant from a refrigerant circuit that connects an outdoor unit and an indoor unit and sending the recovered refrigerant to a recovery unit of the outdoor unit; and
a control unit configured to make a determination whether all the recovered refrigerant is sendable to the recovery unit before a start of the refrigerant recovery operation by the air conditioning apparatus, and to output, when determining that all the recovered refrigerant is not sendable to the recovery unit, a command for notifying the determination.
 
20. A refrigerant recovery management apparatus to be communicably connected to an air conditioning apparatus configured to carry out a refrigerant recovery operation of recovering a refrigerant from a refrigerant circuit that connects an outdoor unit and an indoor unit and sending the recovered refrigerant to a recovery unit of the outdoor unit,
the refrigerant recovery management apparatus comprising
a control unit configured to make a determination whether all the recovered refrigerant is sendable to the recovery unit before a start of the refrigerant recovery operation by the air conditioning apparatus, and to output, when determining that all the recovered refrigerant is not sendable to the recovery unit, a command for notifying the determination.