Air-conditioning apparatus
US9353979B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 29, 2008 |
| Grant date | May 31, 2016 |
| Priority date | — |
| Expiry date | Jul 9, 2029 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF25B2313/02741
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
An air-conditioning apparatus in which entry of a refrigerant into a living space is suppressed and measures against refrigerant leakage are taken is provided.An air-conditioning apparatus 100 is provided with a heat source device 1 having a compressor that pressurizes a primary refrigerant, a four-way valve 11 that switches a circulation direction of the primary refrigerant, and a heat-source side heat exchanger 12 connected to the four-way valve 11 and installed outside of a building 9 having a plurality of floors or in a space leading to the outside, a relay unit 3 having an intermediate heat exchanger that is disposed in a space not to be air-conditioned different from the space to be air-conditioned on the installed floor separated from the heat source device 1 by plural floors and exchanges heat between the primary refrigerant and a secondary refrigerant and a pump 21 that conveys the secondary refrigerant, an indoor unit 2 having a use-side heat exchanger 26 that exchanges heat between the secondary refrigerant and air in the space to be air-conditioned, a vertical pipeline that connects the heat source device 1 and the relay unit 3 across the plurality of floors, and a hori…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.