Title:
AIR-CONDITIONING DEVICE
Document Type and Number:
WIPO Patent Application WO/2020/208805
Kind Code:
A1
Abstract:
This air-conditioning device comprises: a heat-source-side unit; a plurality of load-side units; a repeater that distributes the heat source generated by the heat-source-side unit to the plurality of load-side units; a first refrigerant pipe through which the refrigerant flows from the repeater to the heat-source-side unit; a second refrigerant pipe through which the refrigerant having a pressure higher than the pressure of the refrigerant flowing through the first refrigerant pipe flows from the heat-source-side unit to the repeater; a suction pressure gauge that detects the suction pressure of the refrigerant sucked into the compressor; a repeater thermometer that is provided in the first refrigerant pipe in the repeater and detects the temperature of the refrigerant flowing through the first refrigerant pipe; and a control device that controls the compressor so that the suction pressure detected by the suction pressure gauge matches a target suction pressure. The control device has a target value setting means for determining the target suction pressure on the basis of the temperature of the refrigerant detected by the relay thermometer in the case of the cooling-dominated operation mode.
Inventors:
MARUYAMA HIROKI (JP)
TAMURA NAOMICHI (JP)
OKANO HIROYUKI (JP)
MATSUDA TAKUYA (JP)
ASANUMA HIROAKI (JP)
TAMURA NAOMICHI (JP)
OKANO HIROYUKI (JP)
MATSUDA TAKUYA (JP)
ASANUMA HIROAKI (JP)
Application Number:
PCT/JP2019/015948
Publication Date:
October 15, 2020
Filing Date:
April 12, 2019
Export Citation:
Assignee:
MITSUBISHI ELECTRIC CORP (JP)
International Classes:
F24F11/86; F25B1/00; F25B13/00; F24F110/12; F24F140/20
Domestic Patent References:
WO2019053872A1 | 2019-03-21 | |||
WO2013102953A1 | 2013-07-11 | |||
WO2013111176A1 | 2013-08-01 | |||
WO2014054091A1 | 2014-04-10 | |||
WO2016207993A1 | 2016-12-29 | |||
WO2019053876A1 | 2019-03-21 |
Foreign References:
JP2011112233A | 2011-06-09 | |||
JP2003021408A | 2003-01-24 | |||
JP2010271011A | 2010-12-02 | |||
KR20100064144A | 2010-06-14 | |||
JPH0719641A | 1995-01-20 |
Attorney, Agent or Firm:
KISA PATENT & TRADEMARK FIRM (JP)
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