Title:
AIR CONDITIONER
Document Type and Number:
WIPO Patent Application WO/2023/135630
Kind Code:
A1
Abstract:
This air conditioner comprises: a first heat load device having a first load-side heat exchanger that exchanges heat between a refrigerant and air in a target space and a first load-side expansion valve for expanding the refrigerant flowing into the first load-side heat exchanger or the refrigerant flowing out from the first load-side heat exchanger; a second heat load device having a second load-side heat exchanger that exchanges heat between a refrigerant and air in the target space and a second load-side expansion valve for expanding the refrigerant flowing into the second load-side heat exchanger or the refrigerant flowing out from the second load-side heat exchanger; a heat source machine that has a compressor for compressing the refrigerants and supplies the refrigerants to the first and second load-side heat exchangers; a refrigerant pipe through which the refrigerants flow therein and with which the first and second heat load devices are connected in parallel to the heat source machine; an electromagnetic valve that is provided to the refrigerant pipe and that adjusts the amount of the refrigerant flowing into the first heat load device or the refrigerant flowing out from the first heat load device; and a control device. The control device closes the first load-side expansion valve and the electromagnet valve and sets the opening of the second load-side expansion valve larger than the opening at present time when leakage of the refrigerant is detected in the first heat load device while leakage of the refrigerant is not detected in the second heat load device.
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Inventors:
MATSUI RYOSUKE (JP)
IKEDA SOSHI (JP)
IKEDA SOSHI (JP)
Application Number:
PCT/JP2022/000489
Publication Date:
July 20, 2023
Filing Date:
January 11, 2022
Export Citation:
Assignee:
MITSUBISHI ELECTRIC CORP (JP)
International Classes:
F25B1/00; F24F11/36; F25B49/02
Foreign References:
| JP2016011782A | 2016-01-21 | |||
| JP2017067428A | 2017-04-06 | |||
| JP2021014960A | 2021-02-12 | |||
| JP2021012009A | 2021-02-04 | |||
| JP2018036030A | 2018-03-08 |
Attorney, Agent or Firm:
KISA PATENT & TRADEMARK FIRM (JP)
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