Title:
AIR CONDITIONING DEVICE
Document Type and Number:
WIPO Patent Application WO/2016/166801
Kind Code:
A1
Abstract:
This air conditioning device 1 has the following two possible operations: a first parallel heating and defrosting operation in which hot gas discharged from a compressor 2 is supplied to a first heat source-side heat exchanger 6a by closing a first heat-source side decompression device 5a and opening a first electromagnetic valve 24, and in which a low temperature and low pressure two-phase refrigerant is supplied to a third heat source-side heat exchanger 6c by closing a second electromagnetic valve 26 and opening a third heat source-side decompression device 5c; and a second parallel heating and defrosting operation in which the low temperature and low pressure two-phase refrigerant is supplied to the first heat source-side heat exchanger 6a by closing the first electromagnetic valve 24 and opening the first heat source-side decompression device 5a, and in which the hot gas discharged from the compressor 2 is supplied to the third heat source-side heat exchanger 6c by closing the third heat source-side decompression device 5c and opening the second electromagnetic valve 26. The air conditioning device is provided with a control device 500 that, when the first parallel heating and defrosting operation or the second parallel heating and defrosting operation is executed, supplies the hot gas discharged from the compressor 2 to a second heat source-side heat exchanger 6b by closing a second heat source-side decompression device 5b, and opening a bypass decompression device 28 and adjusting the opening degree thereof.
Inventors:
MIZUTANI SHUHEI (JP)
Application Number:
PCT/JP2015/061392
Publication Date:
October 20, 2016
Filing Date:
April 13, 2015
Export Citation:
Assignee:
MITSUBISHI ELECTRIC CORP (JP)
International Classes:
F25B47/02; F24F11/02
Foreign References:
| JP2014020568A | 2014-02-03 | |||
| JPS57184864A | 1982-11-13 | |||
| JP2009047385A | 2009-03-05 |
Attorney, Agent or Firm:
KISA PATENT & TRADEMARK FIRM (JP)
Patent business corporation きさ patent trademark office (JP)
Patent business corporation きさ patent trademark office (JP)
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