Title:
REFRIGERATION CYCLE APPARATUS MANUFACTURING METHOD
Document Type and Number:
WIPO Patent Application WO/2021/234869
Kind Code:
A1
Abstract:
A method for manufacturing a refrigeration cycle apparatus (1) comprises: a step for preparing a refrigerant circuit (RC); a step for discharging air from an indoor unit (20); and step for mixing a first refrigerant and a second refrigerant. In the step for preparing the refrigerant circuit (RC), the refrigerant circuit (RC) is prepared such that the indoor unit (20) is connected to a first valve (161) and a second valve (162) of an outdoor unit (10) having the first refrigerant sealed therein. In the step for discharging air from the indoor unit (20), the second refrigerant which is a natural refrigerant and is different from the first refrigerant is charged into the indoor unit (20) through the second valve (162), and air in the indoor unit (20) is discharged through the first valve (161). In the step for mixing the first refrigerant and the second refrigerant, the first valve (161) and the second valve (162) are opened and the first refrigerant and the second refrigerant are mixed in the refrigerant circuit (RC).
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Inventors:
KOYANO TAKEHIRO (JP)
Application Number:
PCT/JP2020/019990
Publication Date:
November 25, 2021
Filing Date:
May 20, 2020
Export Citation:
Assignee:
MITSUBISHI ELECTRIC CORP (JP)
International Classes:
F25B45/00
Domestic Patent References:
| WO2019053880A1 | 2019-03-21 |
Foreign References:
| JP2000055515A | 2000-02-25 | |||
| JP2001033125A | 2001-02-09 | |||
| JP2011116822A | 2011-06-16 | |||
| JP2015215112A | 2015-12-03 | |||
| JPH08189711A | 1996-07-23 | |||
| JPH10213363A | 1998-08-11 | |||
| JP2011237146A | 2011-11-24 |
Attorney, Agent or Firm:
FUKAMI PATENT OFFICE, P.C. (JP)
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