Refrigeration cycle apparatus, method of manufacturing the same, and method of installing the same
US10281182B2 · kind B2 · utility
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Key dates
| Filing date | Sep 4, 2014 |
| Grant date | May 7, 2019 |
| Priority date | — |
| Expiry date | Jan 20, 2035 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49359
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
A method of manufacturing an air-conditioning apparatus serving as a refrigeration cycle apparatus includes: performing an operation test in a factory under a state in which inert gas (nitrogen) is sealed into respective devices mounted on an outdoor unit (such as a compressor and a four-way valve) and an outdoor pipe connecting the devices in place of refrigerant having flammability; and shipping the air-conditioning apparatus under the state in which the inert gas remains sealed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.